node_modules

19 files changed, 27483 insertions, 24159 deletions

diff --git a/node_modules/.yarn-integrity b/node_modules/.yarn-integrity
index 57a73e7ba..f58d3746d 100644
--- a/node_modules/.yarn-integrity
+++ b/node_modules/.yarn-integrity
@@ -1 +1 @@
-71a595d8819c141a8c9cb0787566aceeaaefb2b47317b30f3c9fbbfa9a25eb49
\ No newline at end of file
+7ed29847ffe108e16d5c053f27c2c2be64cd4091dc26a19a2d6cfb0f78807183
\ No newline at end of file
diff --git a/node_modules/typescript/Gulpfile.ts b/node_modules/typescript/Gulpfile.ts
index d7e20a557..054e99c80 100644
--- a/node_modules/typescript/Gulpfile.ts
+++ b/node_modules/typescript/Gulpfile.ts
@@ -177,7 +177,7 @@ for (const i in libraryTargets) {
 const configureNightlyJs = path.join(scriptsDirectory, "configureNightly.js");

 const configureNightlyTs = path.join(scriptsDirectory, "configureNightly.ts");

 const packageJson = "package.json";

-const programTs = path.join(compilerDirectory, "program.ts");

+const versionFile = path.join(compilerDirectory, "core.ts");

 

 function needsUpdate(source: string | string[], dest: string | string[]): boolean {

     if (typeof source === "string" && typeof dest === "string") {

@@ -285,7 +285,7 @@ gulp.task(configureNightlyJs, false, [], () => {
 

 // Nightly management tasks

 gulp.task("configure-nightly", "Runs scripts/configureNightly.ts to prepare a build for nightly publishing", [configureNightlyJs], (done) => {

-    exec(host, [configureNightlyJs, packageJson, programTs], done, done);

+    exec(host, [configureNightlyJs, packageJson, versionFile], done, done);

 });

 gulp.task("publish-nightly", "Runs `npm publish --tag next` to create a new nightly build on npm", ["LKG"], () => {

     return runSequence("clean", "useDebugMode", "runtests", (done) => {

diff --git a/node_modules/typescript/lib/lib.d.ts b/node_modules/typescript/lib/lib.d.ts
index 4eb501c04..ed066deeb 100644
--- a/node_modules/typescript/lib/lib.d.ts
+++ b/node_modules/typescript/lib/lib.d.ts
@@ -200,7 +200,19 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

       * @param o Object on which to lock the attributes.

       */

-    freeze<T>(o: T): T;

+    freeze<T>(a: T[]): ReadonlyArray<T>;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T extends Function>(f: T): T;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T>(o: T): Readonly<T>;

 

     /**

       * Prevents the addition of new properties to an object.

@@ -1364,6 +1376,34 @@ interface ArrayLike<T> {
 }

 

 /**

+ * Make all properties in T optional

+ */

+type Partial<T> = {

+    [P in keyof T]?: T[P];

+};

+

+/**

+ * Make all properties in T readonly

+ */

+type Readonly<T> = {

+    readonly [P in keyof T]: T[P];

+};

+

+/**

+ * From T pick a set of properties K

+ */

+type Pick<T, K extends keyof T> = {

+    [P in K]: T[P];

+}

+

+/**

+ * Construct a type with a set of properties K of type T

+ */

+type Record<K extends string, T> = {

+    [P in K]: T;

+}

+

+/**

   * Represents a raw buffer of binary data, which is used to store data for the

   * different typed arrays. ArrayBuffers cannot be read from or written to directly,

   * but can be passed to a typed array or DataView Object to interpret the raw

@@ -4233,6 +4273,7 @@ interface DoubleRange {
 }

 

 interface EventInit {

+    scoped?: boolean;

     bubbles?: boolean;

     cancelable?: boolean;

 }

@@ -5074,15 +5115,26 @@ declare var AnimationEvent: {
     new(): AnimationEvent;

 }

 

+interface ApplicationCacheEventMap {

+    "cached": Event;

+    "checking": Event;

+    "downloading": Event;

+    "error": ErrorEvent;

+    "noupdate": Event;

+    "obsolete": Event;

+    "progress": ProgressEvent;

+    "updateready": Event;

+}

+

 interface ApplicationCache extends EventTarget {

-    oncached: (this: this, ev: Event) => any;

-    onchecking: (this: this, ev: Event) => any;

-    ondownloading: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onnoupdate: (this: this, ev: Event) => any;

-    onobsolete: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onupdateready: (this: this, ev: Event) => any;

+    oncached: (this: ApplicationCache, ev: Event) => any;

+    onchecking: (this: ApplicationCache, ev: Event) => any;

+    ondownloading: (this: ApplicationCache, ev: Event) => any;

+    onerror: (this: ApplicationCache, ev: ErrorEvent) => any;

+    onnoupdate: (this: ApplicationCache, ev: Event) => any;

+    onobsolete: (this: ApplicationCache, ev: Event) => any;

+    onprogress: (this: ApplicationCache, ev: ProgressEvent) => any;

+    onupdateready: (this: ApplicationCache, ev: Event) => any;

     readonly status: number;

     abort(): void;

     swapCache(): void;

@@ -5093,14 +5145,7 @@ interface ApplicationCache extends EventTarget {
     readonly OBSOLETE: number;

     readonly UNCACHED: number;

     readonly UPDATEREADY: number;

-    addEventListener(type: "cached", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "checking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "downloading", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "noupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "obsolete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "updateready", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ApplicationCacheEventMap>(type: K, listener: (this: ApplicationCache, ev: ApplicationCacheEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5153,17 +5198,21 @@ declare var AudioBuffer: {
     new(): AudioBuffer;

 }

 

+interface AudioBufferSourceNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface AudioBufferSourceNode extends AudioNode {

     buffer: AudioBuffer | null;

     readonly detune: AudioParam;

     loop: boolean;

     loopEnd: number;

     loopStart: number;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: AudioBufferSourceNode, ev: MediaStreamErrorEvent) => any;

     readonly playbackRate: AudioParam;

     start(when?: number, offset?: number, duration?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioBufferSourceNodeEventMap>(type: K, listener: (this: AudioBufferSourceNode, ev: AudioBufferSourceNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5285,16 +5334,20 @@ declare var AudioTrack: {
     new(): AudioTrack;

 }

 

+interface AudioTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface AudioTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: AudioTrackList, ev: TrackEvent) => any;

+    onchange: (this: AudioTrackList, ev: Event) => any;

+    onremovetrack: (this: AudioTrackList, ev: TrackEvent) => any;

     getTrackById(id: string): AudioTrack | null;

     item(index: number): AudioTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioTrackListEventMap>(type: K, listener: (this: AudioTrackList, ev: AudioTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: AudioTrack;

 }

@@ -5995,7 +6048,6 @@ interface CharacterData extends Node, ChildNode {
     insertData(offset: number, arg: string): void;

     replaceData(offset: number, count: number, arg: string): void;

     substringData(offset: number, count: number): string;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var CharacterData: {

@@ -6320,6 +6372,8 @@ declare var DOMTokenList: {
 

 interface DataCue extends TextTrackCue {

     data: ArrayBuffer;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DataCue: {

@@ -6448,7 +6502,98 @@ declare var DeviceRotationRate: {
     new(): DeviceRotationRate;

 }

 

-interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode {

+interface DocumentEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforedeactivate": UIEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "fullscreenchange": Event;

+    "fullscreenerror": Event;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "mssitemodejumplistitemremoved": MSSiteModeEvent;

+    "msthumbnailclick": MSSiteModeEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "pointerlockchange": Event;

+    "pointerlockerror": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectionchange": Event;

+    "selectstart": Event;

+    "stalled": Event;

+    "stop": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "volumechange": Event;

+    "waiting": Event;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

+interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode, DocumentOrShadowRoot {

     /**

       * Sets or gets the URL for the current document. 

       */

@@ -6571,294 +6716,294 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Fires when the user aborts the download.

       * @param ev The event.

       */

-    onabort: (this: this, ev: UIEvent) => any;

+    onabort: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the object is set as the active element.

       * @param ev The event.

       */

-    onactivate: (this: this, ev: UIEvent) => any;

+    onactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the object is set as the active element.

       * @param ev The event.

       */

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

+    onbeforeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the activeElement is changed from the current object to another object in the parent document.

       * @param ev The event.

       */

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

+    onbeforedeactivate: (this: Document, ev: UIEvent) => any;

     /** 

       * Fires when the object loses the input focus. 

       * @param ev The focus event.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

+    onblur: (this: Document, ev: FocusEvent) => any;

     /**

       * Occurs when playback is possible, but would require further buffering. 

       * @param ev The event.

       */

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

+    oncanplay: (this: Document, ev: Event) => any;

+    oncanplaythrough: (this: Document, ev: Event) => any;

     /**

       * Fires when the contents of the object or selection have changed. 

       * @param ev The event.

       */

-    onchange: (this: this, ev: Event) => any;

+    onchange: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the left mouse button on the object

       * @param ev The mouse event.

       */

-    onclick: (this: this, ev: MouseEvent) => any;

+    onclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user clicks the right mouse button in the client area, opening the context menu. 

       * @param ev The mouse event.

       */

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

+    oncontextmenu: (this: Document, ev: PointerEvent) => any;

     /**

       * Fires when the user double-clicks the object.

       * @param ev The mouse event.

       */

-    ondblclick: (this: this, ev: MouseEvent) => any;

+    ondblclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the activeElement is changed from the current object to another object in the parent document.

       * @param ev The UI Event

       */

-    ondeactivate: (this: this, ev: UIEvent) => any;

+    ondeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires on the source object continuously during a drag operation.

       * @param ev The event.

       */

-    ondrag: (this: this, ev: DragEvent) => any;

+    ondrag: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user releases the mouse at the close of a drag operation.

       * @param ev The event.

       */

-    ondragend: (this: this, ev: DragEvent) => any;

+    ondragend: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target element when the user drags the object to a valid drop target.

       * @param ev The drag event.

       */

-    ondragenter: (this: this, ev: DragEvent) => any;

+    ondragenter: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.

       * @param ev The drag event.

       */

-    ondragleave: (this: this, ev: DragEvent) => any;

+    ondragleave: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the target element continuously while the user drags the object over a valid drop target.

       * @param ev The event.

       */

-    ondragover: (this: this, ev: DragEvent) => any;

+    ondragover: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user starts to drag a text selection or selected object. 

       * @param ev The event.

       */

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

+    ondragstart: (this: Document, ev: DragEvent) => any;

+    ondrop: (this: Document, ev: DragEvent) => any;

     /**

       * Occurs when the duration attribute is updated. 

       * @param ev The event.

       */

-    ondurationchange: (this: this, ev: Event) => any;

+    ondurationchange: (this: Document, ev: Event) => any;

     /**

       * Occurs when the media element is reset to its initial state. 

       * @param ev The event.

       */

-    onemptied: (this: this, ev: Event) => any;

+    onemptied: (this: Document, ev: Event) => any;

     /**

       * Occurs when the end of playback is reached. 

       * @param ev The event

       */

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: Document, ev: MediaStreamErrorEvent) => any;

     /**

       * Fires when an error occurs during object loading.

       * @param ev The event.

       */

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onerror: (this: Document, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus. 

       * @param ev The event.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onfullscreenchange: (this: this, ev: Event) => any;

-    onfullscreenerror: (this: this, ev: Event) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

+    onfocus: (this: Document, ev: FocusEvent) => any;

+    onfullscreenchange: (this: Document, ev: Event) => any;

+    onfullscreenerror: (this: Document, ev: Event) => any;

+    oninput: (this: Document, ev: Event) => any;

+    oninvalid: (this: Document, ev: Event) => any;

     /**

       * Fires when the user presses a key.

       * @param ev The keyboard event

       */

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

+    onkeydown: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user presses an alphanumeric key.

       * @param ev The event.

       */

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

+    onkeypress: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user releases a key.

       * @param ev The keyboard event

       */

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

+    onkeyup: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires immediately after the browser loads the object. 

       * @param ev The event.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: Document, ev: Event) => any;

     /**

       * Occurs when media data is loaded at the current playback position. 

       * @param ev The event.

       */

-    onloadeddata: (this: this, ev: Event) => any;

+    onloadeddata: (this: Document, ev: Event) => any;

     /**

       * Occurs when the duration and dimensions of the media have been determined.

       * @param ev The event.

       */

-    onloadedmetadata: (this: this, ev: Event) => any;

+    onloadedmetadata: (this: Document, ev: Event) => any;

     /**

       * Occurs when Internet Explorer begins looking for media data. 

       * @param ev The event.

       */

-    onloadstart: (this: this, ev: Event) => any;

+    onloadstart: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the object with either mouse button. 

       * @param ev The mouse event.

       */

-    onmousedown: (this: this, ev: MouseEvent) => any;

+    onmousedown: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse over the object. 

       * @param ev The mouse event.

       */

-    onmousemove: (this: this, ev: MouseEvent) => any;

+    onmousemove: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer outside the boundaries of the object. 

       * @param ev The mouse event.

       */

-    onmouseout: (this: this, ev: MouseEvent) => any;

+    onmouseout: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer into the object.

       * @param ev The mouse event.

       */

-    onmouseover: (this: this, ev: MouseEvent) => any;

+    onmouseover: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user releases a mouse button while the mouse is over the object. 

       * @param ev The mouse event.

       */

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onmouseup: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the wheel button is rotated. 

       * @param ev The mouse event

       */

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onmousewheel: (this: Document, ev: WheelEvent) => any;

+    onmscontentzoom: (this: Document, ev: UIEvent) => any;

+    onmsgesturechange: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Document, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Document, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Document, ev: MSGestureEvent) => any;

+    onmsmanipulationstatechanged: (this: Document, ev: MSManipulationEvent) => any;

+    onmspointercancel: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Document, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Document, ev: MSPointerEvent) => any;

     /**

       * Occurs when an item is removed from a Jump List of a webpage running in Site Mode. 

       * @param ev The event.

       */

-    onmssitemodejumplistitemremoved: (this: this, ev: MSSiteModeEvent) => any;

+    onmssitemodejumplistitemremoved: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when a user clicks a button in a Thumbnail Toolbar of a webpage running in Site Mode.

       * @param ev The event.

       */

-    onmsthumbnailclick: (this: this, ev: MSSiteModeEvent) => any;

+    onmsthumbnailclick: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when playback is paused.

       * @param ev The event.

       */

-    onpause: (this: this, ev: Event) => any;

+    onpause: (this: Document, ev: Event) => any;

     /**

       * Occurs when the play method is requested. 

       * @param ev The event.

       */

-    onplay: (this: this, ev: Event) => any;

+    onplay: (this: Document, ev: Event) => any;

     /**

       * Occurs when the audio or video has started playing. 

       * @param ev The event.

       */

-    onplaying: (this: this, ev: Event) => any;

-    onpointerlockchange: (this: this, ev: Event) => any;

-    onpointerlockerror: (this: this, ev: Event) => any;

+    onplaying: (this: Document, ev: Event) => any;

+    onpointerlockchange: (this: Document, ev: Event) => any;

+    onpointerlockerror: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate progress while downloading media data. 

       * @param ev The event.

       */

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onprogress: (this: Document, ev: ProgressEvent) => any;

     /**

       * Occurs when the playback rate is increased or decreased. 

       * @param ev The event.

       */

-    onratechange: (this: this, ev: Event) => any;

+    onratechange: (this: Document, ev: Event) => any;

     /**

       * Fires when the state of the object has changed.

       * @param ev The event

       */

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

+    onreadystatechange: (this: Document, ev: ProgressEvent) => any;

     /**

       * Fires when the user resets a form. 

       * @param ev The event.

       */

-    onreset: (this: this, ev: Event) => any;

+    onreset: (this: Document, ev: Event) => any;

     /**

       * Fires when the user repositions the scroll box in the scroll bar on the object. 

       * @param ev The event.

       */

-    onscroll: (this: this, ev: UIEvent) => any;

+    onscroll: (this: Document, ev: UIEvent) => any;

     /**

       * Occurs when the seek operation ends. 

       * @param ev The event.

       */

-    onseeked: (this: this, ev: Event) => any;

+    onseeked: (this: Document, ev: Event) => any;

     /**

       * Occurs when the current playback position is moved. 

       * @param ev The event.

       */

-    onseeking: (this: this, ev: Event) => any;

+    onseeking: (this: Document, ev: Event) => any;

     /**

       * Fires when the current selection changes.

       * @param ev The event.

       */

-    onselect: (this: this, ev: UIEvent) => any;

+    onselect: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the selection state of a document changes.

       * @param ev The event.

       */

-    onselectionchange: (this: this, ev: Event) => any;

-    onselectstart: (this: this, ev: Event) => any;

+    onselectionchange: (this: Document, ev: Event) => any;

+    onselectstart: (this: Document, ev: Event) => any;

     /**

       * Occurs when the download has stopped. 

       * @param ev The event.

       */

-    onstalled: (this: this, ev: Event) => any;

+    onstalled: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the Stop button or leaves the Web page.

       * @param ev The event.

       */

-    onstop: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

+    onstop: (this: Document, ev: Event) => any;

+    onsubmit: (this: Document, ev: Event) => any;

     /**

       * Occurs if the load operation has been intentionally halted. 

       * @param ev The event.

       */

-    onsuspend: (this: this, ev: Event) => any;

+    onsuspend: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate the current playback position.

       * @param ev The event.

       */

-    ontimeupdate: (this: this, ev: Event) => any;

+    ontimeupdate: (this: Document, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

@@ -6867,14 +7012,14 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Occurs when the volume is changed, or playback is muted or unmuted.

       * @param ev The event.

       */

-    onvolumechange: (this: this, ev: Event) => any;

+    onvolumechange: (this: Document, ev: Event) => any;

     /**

       * Occurs when playback stops because the next frame of a video resource is not available. 

       * @param ev The event.

       */

-    onwaiting: (this: this, ev: Event) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwaiting: (this: Document, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Document, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Document, ev: Event) => any;

     plugins: HTMLCollectionOf<HTMLEmbedElement>;

     readonly pointerLockElement: Element;

     /**

@@ -6945,86 +7090,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Creates an instance of the element for the specified tag.

       * @param tagName The name of an element.

       */

-    createElement(tagName: "a"): HTMLAnchorElement;

-    createElement(tagName: "applet"): HTMLAppletElement;

-    createElement(tagName: "area"): HTMLAreaElement;

-    createElement(tagName: "audio"): HTMLAudioElement;

-    createElement(tagName: "base"): HTMLBaseElement;

-    createElement(tagName: "basefont"): HTMLBaseFontElement;

-    createElement(tagName: "blockquote"): HTMLQuoteElement;

-    createElement(tagName: "body"): HTMLBodyElement;

-    createElement(tagName: "br"): HTMLBRElement;

-    createElement(tagName: "button"): HTMLButtonElement;

-    createElement(tagName: "canvas"): HTMLCanvasElement;

-    createElement(tagName: "caption"): HTMLTableCaptionElement;

-    createElement(tagName: "col"): HTMLTableColElement;

-    createElement(tagName: "colgroup"): HTMLTableColElement;

-    createElement(tagName: "datalist"): HTMLDataListElement;

-    createElement(tagName: "del"): HTMLModElement;

-    createElement(tagName: "dir"): HTMLDirectoryElement;

-    createElement(tagName: "div"): HTMLDivElement;

-    createElement(tagName: "dl"): HTMLDListElement;

-    createElement(tagName: "embed"): HTMLEmbedElement;

-    createElement(tagName: "fieldset"): HTMLFieldSetElement;

-    createElement(tagName: "font"): HTMLFontElement;

-    createElement(tagName: "form"): HTMLFormElement;

-    createElement(tagName: "frame"): HTMLFrameElement;

-    createElement(tagName: "frameset"): HTMLFrameSetElement;

-    createElement(tagName: "h1"): HTMLHeadingElement;

-    createElement(tagName: "h2"): HTMLHeadingElement;

-    createElement(tagName: "h3"): HTMLHeadingElement;

-    createElement(tagName: "h4"): HTMLHeadingElement;

-    createElement(tagName: "h5"): HTMLHeadingElement;

-    createElement(tagName: "h6"): HTMLHeadingElement;

-    createElement(tagName: "head"): HTMLHeadElement;

-    createElement(tagName: "hr"): HTMLHRElement;

-    createElement(tagName: "html"): HTMLHtmlElement;

-    createElement(tagName: "iframe"): HTMLIFrameElement;

-    createElement(tagName: "img"): HTMLImageElement;

-    createElement(tagName: "input"): HTMLInputElement;

-    createElement(tagName: "ins"): HTMLModElement;

-    createElement(tagName: "isindex"): HTMLUnknownElement;

-    createElement(tagName: "label"): HTMLLabelElement;

-    createElement(tagName: "legend"): HTMLLegendElement;

-    createElement(tagName: "li"): HTMLLIElement;

-    createElement(tagName: "link"): HTMLLinkElement;

-    createElement(tagName: "listing"): HTMLPreElement;

-    createElement(tagName: "map"): HTMLMapElement;

-    createElement(tagName: "marquee"): HTMLMarqueeElement;

-    createElement(tagName: "menu"): HTMLMenuElement;

-    createElement(tagName: "meta"): HTMLMetaElement;

-    createElement(tagName: "meter"): HTMLMeterElement;

-    createElement(tagName: "nextid"): HTMLUnknownElement;

-    createElement(tagName: "object"): HTMLObjectElement;

-    createElement(tagName: "ol"): HTMLOListElement;

-    createElement(tagName: "optgroup"): HTMLOptGroupElement;

-    createElement(tagName: "option"): HTMLOptionElement;

-    createElement(tagName: "p"): HTMLParagraphElement;

-    createElement(tagName: "param"): HTMLParamElement;

-    createElement(tagName: "picture"): HTMLPictureElement;

-    createElement(tagName: "pre"): HTMLPreElement;

-    createElement(tagName: "progress"): HTMLProgressElement;

-    createElement(tagName: "q"): HTMLQuoteElement;

-    createElement(tagName: "script"): HTMLScriptElement;

-    createElement(tagName: "select"): HTMLSelectElement;

-    createElement(tagName: "source"): HTMLSourceElement;

-    createElement(tagName: "span"): HTMLSpanElement;

-    createElement(tagName: "style"): HTMLStyleElement;

-    createElement(tagName: "table"): HTMLTableElement;

-    createElement(tagName: "tbody"): HTMLTableSectionElement;

-    createElement(tagName: "td"): HTMLTableDataCellElement;

-    createElement(tagName: "template"): HTMLTemplateElement;

-    createElement(tagName: "textarea"): HTMLTextAreaElement;

-    createElement(tagName: "tfoot"): HTMLTableSectionElement;

-    createElement(tagName: "th"): HTMLTableHeaderCellElement;

-    createElement(tagName: "thead"): HTMLTableSectionElement;

-    createElement(tagName: "title"): HTMLTitleElement;

-    createElement(tagName: "tr"): HTMLTableRowElement;

-    createElement(tagName: "track"): HTMLTrackElement;

-    createElement(tagName: "ul"): HTMLUListElement;

-    createElement(tagName: "video"): HTMLVideoElement;

-    createElement(tagName: "x-ms-webview"): MSHTMLWebViewElement;

-    createElement(tagName: "xmp"): HTMLPreElement;

+    createElement<K extends keyof HTMLElementTagNameMap>(tagName: K): HTMLElementTagNameMap[K];

     createElement(tagName: string): HTMLElement;

     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement

     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "a"): SVGAElement

@@ -7126,7 +7192,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param y The y-offset

       */

     elementFromPoint(x: number, y: number): Element;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

     /**

       * Executes a command on the current document, current selection, or the given range.

       * @param commandId String that specifies the command to execute. This command can be any of the command identifiers that can be executed in script.

@@ -7160,182 +7226,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Retrieves a collection of objects based on the specified element name.

       * @param name Specifies the name of an element.

       */

-    getElementsByTagName(tagname: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(tagname: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(tagname: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(tagname: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(tagname: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(tagname: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(tagname: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(tagname: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(tagname: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(tagname: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(tagname: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(tagname: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(tagname: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(tagname: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(tagname: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(tagname: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(tagname: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(tagname: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(tagname: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(tagname: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(tagname: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(tagname: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(tagname: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(tagname: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(tagname: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(tagname: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(tagname: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(tagname: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(tagname: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(tagname: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(tagname: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(tagname: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(tagname: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(tagname: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(tagname: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(tagname: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(tagname: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(tagname: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(tagname: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(tagname: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(tagname: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(tagname: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(tagname: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(tagname: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(tagname: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(tagname: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(tagname: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(tagname: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(tagname: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(tagname: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(tagname: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(tagname: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(tagname: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(tagname: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(tagname: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(tagname: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(tagname: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(tagname: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(tagname: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(tagname: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(tagname: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(tagname: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(tagname: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(tagname: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(tagname: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(tagname: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(tagname: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(tagname: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(tagname: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(tagname: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(tagname: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(tagname: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(tagname: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(tagname: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(tagname: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(tagname: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(tagname: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(tagname: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(tagname: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(tagname: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(tagname: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(tagname: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(tagname: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(tagname: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(tagname: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(tagname: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(tagname: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(tagname: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(tagname: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(tagname: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(tagname: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(tagname: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(tagname: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(tagname: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(tagname: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(tagname: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(tagname: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(tagname: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(tagname: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(tagname: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(tagname: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(tagname: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(tagname: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(tagname: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(tagname: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(tagname: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(tagname: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(tagname: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(tagname: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(tagname: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(tagname: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(tagname: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(tagname: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(tagname: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(tagname: K): ElementListTagNameMap[K];

     getElementsByTagName(tagname: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -7406,103 +7297,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param content The text and HTML tags to write.

       */

     writeln(...content: string[]): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mssitemodejumplistitemremoved", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msthumbnailclick", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectionchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stop", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7512,7 +7307,6 @@ declare var Document: {
 }

 

 interface DocumentFragment extends Node, NodeSelector, ParentNode {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentFragment: {

@@ -7527,7 +7321,6 @@ interface DocumentType extends Node, ChildNode {
     readonly notations: NamedNodeMap;

     readonly publicId: string | null;

     readonly systemId: string | null;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentType: {

@@ -7580,6 +7373,36 @@ declare var EXT_texture_filter_anisotropic: {
     readonly TEXTURE_MAX_ANISOTROPY_EXT: number;

 }

 

+interface ElementEventMap extends GlobalEventHandlersEventMap {

+    "ariarequest": AriaRequestEvent;

+    "command": CommandEvent;

+    "gotpointercapture": PointerEvent;

+    "lostpointercapture": PointerEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSGotPointerCapture": MSPointerEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSLostPointerCapture": MSPointerEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

 interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelector, ChildNode, ParentNode {

     readonly classList: DOMTokenList;

     className: string;

@@ -7590,33 +7413,33 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     id: string;

     msContentZoomFactor: number;

     readonly msRegionOverflow: string;

-    onariarequest: (this: this, ev: AriaRequestEvent) => any;

-    oncommand: (this: this, ev: CommandEvent) => any;

-    ongotpointercapture: (this: this, ev: PointerEvent) => any;

-    onlostpointercapture: (this: this, ev: PointerEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsgotpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmslostpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onariarequest: (this: Element, ev: AriaRequestEvent) => any;

+    oncommand: (this: Element, ev: CommandEvent) => any;

+    ongotpointercapture: (this: Element, ev: PointerEvent) => any;

+    onlostpointercapture: (this: Element, ev: PointerEvent) => any;

+    onmsgesturechange: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgotpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmsinertiastart: (this: Element, ev: MSGestureEvent) => any;

+    onmslostpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmspointercancel: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Element, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Element, ev: MSPointerEvent) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Element, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Element, ev: Event) => any;

     readonly prefix: string | null;

     readonly scrollHeight: number;

     scrollLeft: number;

@@ -7624,188 +7447,16 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     readonly scrollWidth: number;

     readonly tagName: string;

     innerHTML: string;

+    readonly assignedSlot: HTMLSlotElement | null;

+    slot: string;

+    readonly shadowRoot: ShadowRoot | null;

     getAttribute(name: string): string | null;

     getAttributeNS(namespaceURI: string, localName: string): string;

     getAttributeNode(name: string): Attr;

     getAttributeNodeNS(namespaceURI: string, localName: string): Attr;

     getBoundingClientRect(): ClientRect;

     getClientRects(): ClientRectList;

-    getElementsByTagName(name: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(name: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(name: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(name: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(name: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(name: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(name: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(name: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(name: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(name: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(name: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(name: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(name: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(name: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(name: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(name: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(name: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(name: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(name: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(name: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(name: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(name: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(name: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(name: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(name: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(name: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(name: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(name: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(name: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(name: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(name: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(name: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(name: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(name: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(name: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(name: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(name: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(name: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(name: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(name: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(name: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(name: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(name: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(name: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(name: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(name: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(name: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(name: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(name: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(name: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(name: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(name: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(name: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(name: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(name: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(name: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(name: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(name: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(name: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(name: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(name: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(name: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(name: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(name: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(name: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(name: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(name: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(name: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(name: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(name: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(name: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(name: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(name: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(name: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(name: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(name: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(name: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(name: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(name: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(name: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(name: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(name: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(name: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(name: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(name: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(name: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(name: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(name: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(name: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(name: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(name: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(name: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(name: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(name: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(name: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(name: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(name: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(name: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(name: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(name: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(name: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(name: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(name: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(name: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(name: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(name: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(name: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(name: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(name: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(name: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(name: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(name: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(name: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(name: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(name: K): ElementListTagNameMap[K];

     getElementsByTagName(name: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -7845,42 +7496,8 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     insertAdjacentElement(position: string, insertedElement: Element): Element | null;

     insertAdjacentHTML(where: string, html: string): void;

     insertAdjacentText(where: string, text: string): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    attachShadow(shadowRootInitDict: ShadowRootInit): ShadowRoot;

+    addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7916,10 +7533,12 @@ interface Event {
     readonly target: EventTarget;

     readonly timeStamp: number;

     readonly type: string;

+    readonly scoped: boolean;

     initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;

     preventDefault(): void;

     stopImmediatePropagation(): void;

     stopPropagation(): void;

+    deepPath(): EventTarget[];

     readonly AT_TARGET: number;

     readonly BUBBLING_PHASE: number;

     readonly CAPTURING_PHASE: number;

@@ -7980,6 +7599,7 @@ interface FileReader extends EventTarget, MSBaseReader {
     readAsBinaryString(blob: Blob): void;

     readAsDataURL(blob: Blob): void;

     readAsText(blob: Blob, encoding?: string): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8150,6 +7770,8 @@ interface HTMLAnchorElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAnchorElement: {

@@ -8222,6 +7844,8 @@ interface HTMLAppletElement extends HTMLElement {
     useMap: string;

     vspace: number;

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAppletElement: {

@@ -8288,6 +7912,8 @@ interface HTMLAreaElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAreaElement: {

@@ -8312,6 +7938,8 @@ declare var HTMLAreasCollection: {
 }

 

 interface HTMLAudioElement extends HTMLMediaElement {

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAudioElement: {

@@ -8324,6 +7952,8 @@ interface HTMLBRElement extends HTMLElement {
       * Sets or retrieves the side on which floating objects are not to be positioned when any IHTMLBlockElement is inserted into the document.

       */

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBRElement: {

@@ -8340,6 +7970,8 @@ interface HTMLBaseElement extends HTMLElement {
       * Sets or retrieves the window or frame at which to target content.

       */

     target: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBaseElement: {

@@ -8356,6 +7988,7 @@ interface HTMLBaseFontElement extends HTMLElement, DOML2DeprecatedColorProperty
       * Sets or retrieves the font size of the object.

       */

     size: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8364,6 +7997,27 @@ declare var HTMLBaseFontElement: {
     new(): HTMLBaseFontElement;

 }

 

+interface HTMLBodyElementEventMap extends HTMLElementEventMap {

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "popstate": PopStateEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLBodyElement extends HTMLElement {

     aLink: any;

     background: string;

@@ -8371,147 +8025,27 @@ interface HTMLBodyElement extends HTMLElement {
     bgProperties: string;

     link: any;

     noWrap: boolean;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onafterprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLBodyElement, ev: BeforeUnloadEvent) => any;

+    onblur: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLBodyElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLBodyElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLBodyElement, ev: Event) => any;

+    onmessage: (this: HTMLBodyElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLBodyElement, ev: Event) => any;

+    ononline: (this: HTMLBodyElement, ev: Event) => any;

+    onorientationchange: (this: HTMLBodyElement, ev: Event) => any;

+    onpagehide: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpopstate: (this: HTMLBodyElement, ev: PopStateEvent) => any;

+    onresize: (this: HTMLBodyElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLBodyElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLBodyElement, ev: Event) => any;

     text: any;

     vLink: any;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLBodyElementEventMap>(type: K, listener: (this: HTMLBodyElement, ev: HTMLBodyElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8584,6 +8118,8 @@ interface HTMLButtonElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLButtonElement: {

@@ -8617,6 +8153,8 @@ interface HTMLCanvasElement extends HTMLElement {
       */

     toDataURL(type?: string, ...args: any[]): string;

     toBlob(callback: (result: Blob | null) => void, type?: string, ...arguments: any[]): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLCanvasElement: {

@@ -8647,6 +8185,8 @@ declare var HTMLCollection: {
 

 interface HTMLDListElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDListElement: {

@@ -8656,6 +8196,8 @@ declare var HTMLDListElement: {
 

 interface HTMLDataListElement extends HTMLElement {

     options: HTMLCollectionOf<HTMLOptionElement>;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDataListElement: {

@@ -8665,6 +8207,8 @@ declare var HTMLDataListElement: {
 

 interface HTMLDirectoryElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDirectoryElement: {

@@ -8681,6 +8225,8 @@ interface HTMLDivElement extends HTMLElement {
       * Sets or retrieves whether the browser automatically performs wordwrap.

       */

     noWrap: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDivElement: {

@@ -8689,6 +8235,8 @@ declare var HTMLDivElement: {
 }

 

 interface HTMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDocument: {

@@ -8696,6 +8244,76 @@ declare var HTMLDocument: {
     new(): HTMLDocument;

 }

 

+interface HTMLElementEventMap extends ElementEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforecopy": ClipboardEvent;

+    "beforecut": ClipboardEvent;

+    "beforedeactivate": UIEvent;

+    "beforepaste": ClipboardEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "copy": ClipboardEvent;

+    "cuechange": Event;

+    "cut": ClipboardEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "paste": ClipboardEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectstart": Event;

+    "stalled": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface HTMLElement extends Element {

     accessKey: string;

     readonly children: HTMLCollection;

@@ -8714,73 +8332,73 @@ interface HTMLElement extends Element {
     readonly offsetParent: Element;

     readonly offsetTop: number;

     readonly offsetWidth: number;

-    onabort: (this: this, ev: UIEvent) => any;

-    onactivate: (this: this, ev: UIEvent) => any;

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

-    onbeforecopy: (this: this, ev: ClipboardEvent) => any;

-    onbeforecut: (this: this, ev: ClipboardEvent) => any;

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

-    onbeforepaste: (this: this, ev: ClipboardEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    oncopy: (this: this, ev: ClipboardEvent) => any;

-    oncuechange: (this: this, ev: Event) => any;

-    oncut: (this: this, ev: ClipboardEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondeactivate: (this: this, ev: UIEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onpaste: (this: this, ev: ClipboardEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreset: (this: this, ev: Event) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onselectstart: (this: this, ev: Event) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onabort: (this: HTMLElement, ev: UIEvent) => any;

+    onactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforecopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforecut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforedeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforepaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onblur: (this: HTMLElement, ev: FocusEvent) => any;

+    oncanplay: (this: HTMLElement, ev: Event) => any;

+    oncanplaythrough: (this: HTMLElement, ev: Event) => any;

+    onchange: (this: HTMLElement, ev: Event) => any;

+    onclick: (this: HTMLElement, ev: MouseEvent) => any;

+    oncontextmenu: (this: HTMLElement, ev: PointerEvent) => any;

+    oncopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    oncuechange: (this: HTMLElement, ev: Event) => any;

+    oncut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    ondblclick: (this: HTMLElement, ev: MouseEvent) => any;

+    ondeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    ondrag: (this: HTMLElement, ev: DragEvent) => any;

+    ondragend: (this: HTMLElement, ev: DragEvent) => any;

+    ondragenter: (this: HTMLElement, ev: DragEvent) => any;

+    ondragleave: (this: HTMLElement, ev: DragEvent) => any;

+    ondragover: (this: HTMLElement, ev: DragEvent) => any;

+    ondragstart: (this: HTMLElement, ev: DragEvent) => any;

+    ondrop: (this: HTMLElement, ev: DragEvent) => any;

+    ondurationchange: (this: HTMLElement, ev: Event) => any;

+    onemptied: (this: HTMLElement, ev: Event) => any;

+    onended: (this: HTMLElement, ev: MediaStreamErrorEvent) => any;

+    onerror: (this: HTMLElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLElement, ev: FocusEvent) => any;

+    oninput: (this: HTMLElement, ev: Event) => any;

+    oninvalid: (this: HTMLElement, ev: Event) => any;

+    onkeydown: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeypress: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeyup: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onload: (this: HTMLElement, ev: Event) => any;

+    onloadeddata: (this: HTMLElement, ev: Event) => any;

+    onloadedmetadata: (this: HTMLElement, ev: Event) => any;

+    onloadstart: (this: HTMLElement, ev: Event) => any;

+    onmousedown: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseenter: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseleave: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousemove: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseout: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseover: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseup: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousewheel: (this: HTMLElement, ev: WheelEvent) => any;

+    onmscontentzoom: (this: HTMLElement, ev: UIEvent) => any;

+    onmsmanipulationstatechanged: (this: HTMLElement, ev: MSManipulationEvent) => any;

+    onpaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onpause: (this: HTMLElement, ev: Event) => any;

+    onplay: (this: HTMLElement, ev: Event) => any;

+    onplaying: (this: HTMLElement, ev: Event) => any;

+    onprogress: (this: HTMLElement, ev: ProgressEvent) => any;

+    onratechange: (this: HTMLElement, ev: Event) => any;

+    onreset: (this: HTMLElement, ev: Event) => any;

+    onscroll: (this: HTMLElement, ev: UIEvent) => any;

+    onseeked: (this: HTMLElement, ev: Event) => any;

+    onseeking: (this: HTMLElement, ev: Event) => any;

+    onselect: (this: HTMLElement, ev: UIEvent) => any;

+    onselectstart: (this: HTMLElement, ev: Event) => any;

+    onstalled: (this: HTMLElement, ev: Event) => any;

+    onsubmit: (this: HTMLElement, ev: Event) => any;

+    onsuspend: (this: HTMLElement, ev: Event) => any;

+    ontimeupdate: (this: HTMLElement, ev: Event) => any;

+    onvolumechange: (this: HTMLElement, ev: Event) => any;

+    onwaiting: (this: HTMLElement, ev: Event) => any;

     outerHTML: string;

     outerText: string;

     spellcheck: boolean;

@@ -8793,109 +8411,7 @@ interface HTMLElement extends Element {
     focus(): void;

     msGetInputContext(): MSInputMethodContext;

     setActive(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8951,6 +8467,7 @@ interface HTMLEmbedElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8990,6 +8507,8 @@ interface HTMLFieldSetElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLFieldSetElement: {

@@ -9002,6 +8521,7 @@ interface HTMLFontElement extends HTMLElement, DOML2DeprecatedColorProperty, DOM
       * Sets or retrieves the current typeface family.

       */

     face: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9077,6 +8597,8 @@ interface HTMLFormElement extends HTMLElement {
       * Fires when a FORM is about to be submitted.

       */

     submit(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -9085,6 +8607,10 @@ declare var HTMLFormElement: {
     new(): HTMLFormElement;

 }

 

+interface HTMLFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Specifies the properties of a border drawn around an object.

@@ -9137,7 +8663,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLFrameElement, ev: Event) => any;

     /**

       * Sets or retrieves whether the frame can be scrolled.

       */

@@ -9150,110 +8676,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string | number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameElementEventMap>(type: K, listener: (this: HTMLFrameElement, ev: HTMLFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9262,6 +8685,25 @@ declare var HTMLFrameElement: {
     new(): HTMLFrameElement;

 }

 

+interface HTMLFrameSetElementEventMap extends HTMLElementEventMap {

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLFrameSetElement extends HTMLElement {

     border: string;

     /**

@@ -9281,152 +8723,34 @@ interface HTMLFrameSetElement extends HTMLElement {
       */

     frameSpacing: any;

     name: string;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

+    onafterprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLFrameSetElement, ev: BeforeUnloadEvent) => any;

     /**

       * Fires when the object loses the input focus.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onblur: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLFrameSetElement, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onfocus: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLFrameSetElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLFrameSetElement, ev: Event) => any;

+    onmessage: (this: HTMLFrameSetElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLFrameSetElement, ev: Event) => any;

+    ononline: (this: HTMLFrameSetElement, ev: Event) => any;

+    onorientationchange: (this: HTMLFrameSetElement, ev: Event) => any;

+    onpagehide: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onresize: (this: HTMLFrameSetElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLFrameSetElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLFrameSetElement, ev: Event) => any;

     /**

       * Sets or retrieves the frame heights of the object.

       */

     rows: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameSetElementEventMap>(type: K, listener: (this: HTMLFrameSetElement, ev: HTMLFrameSetElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9448,6 +8772,7 @@ interface HTMLHRElement extends HTMLElement, DOML2DeprecatedColorProperty, DOML2
       * Sets or retrieves the width of the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9458,6 +8783,8 @@ declare var HTMLHRElement: {
 

 interface HTMLHeadElement extends HTMLElement {

     profile: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadElement: {

@@ -9470,6 +8797,8 @@ interface HTMLHeadingElement extends HTMLElement {
       * Sets or retrieves a value that indicates the table alignment.

       */

     align: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadingElement: {

@@ -9482,6 +8811,8 @@ interface HTMLHtmlElement extends HTMLElement {
       * Sets or retrieves the DTD version that governs the current document.

       */

     version: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHtmlElement: {

@@ -9489,6 +8820,10 @@ declare var HTMLHtmlElement: {
     new(): HTMLHtmlElement;

 }

 

+interface HTMLIFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Sets or retrieves how the object is aligned with adjacent text.

@@ -9546,7 +8881,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLIFrameElement, ev: Event) => any;

     readonly sandbox: DOMSettableTokenList;

     /**

       * Sets or retrieves whether the frame can be scrolled.

@@ -9564,110 +8899,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLIFrameElementEventMap>(type: K, listener: (this: HTMLIFrameElement, ev: HTMLIFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9758,6 +8990,8 @@ interface HTMLImageElement extends HTMLElement {
     readonly x: number;

     readonly y: number;

     msGetAsCastingSource(): any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLImageElement: {

@@ -9969,6 +9203,8 @@ interface HTMLInputElement extends HTMLElement {
       * @param n Value to increment the value by.

       */

     stepUp(n?: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLInputElement: {

@@ -9982,6 +9218,8 @@ interface HTMLLIElement extends HTMLElement {
       * Sets or retrieves the value of a list item.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLIElement: {

@@ -9998,6 +9236,8 @@ interface HTMLLabelElement extends HTMLElement {
       * Sets or retrieves the object to which the given label object is assigned.

       */

     htmlFor: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLabelElement: {

@@ -10014,6 +9254,8 @@ interface HTMLLegendElement extends HTMLElement {
       * Retrieves a reference to the form that the object is embedded in.

       */

     readonly form: HTMLFormElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLegendElement: {

@@ -10057,6 +9299,7 @@ interface HTMLLinkElement extends HTMLElement, LinkStyle {
     type: string;

     import?: Document;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10074,6 +9317,8 @@ interface HTMLMapElement extends HTMLElement {
       * Sets or retrieves the name of the object.

       */

     name: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMapElement: {

@@ -10081,6 +9326,12 @@ declare var HTMLMapElement: {
     new(): HTMLMapElement;

 }

 

+interface HTMLMarqueeElementEventMap extends HTMLElementEventMap {

+    "bounce": Event;

+    "finish": Event;

+    "start": Event;

+}

+

 interface HTMLMarqueeElement extends HTMLElement {

     behavior: string;

     bgColor: any;

@@ -10088,9 +9339,9 @@ interface HTMLMarqueeElement extends HTMLElement {
     height: string;

     hspace: number;

     loop: number;

-    onbounce: (this: this, ev: Event) => any;

-    onfinish: (this: this, ev: Event) => any;

-    onstart: (this: this, ev: Event) => any;

+    onbounce: (this: HTMLMarqueeElement, ev: Event) => any;

+    onfinish: (this: HTMLMarqueeElement, ev: Event) => any;

+    onstart: (this: HTMLMarqueeElement, ev: Event) => any;

     scrollAmount: number;

     scrollDelay: number;

     trueSpeed: boolean;

@@ -10098,112 +9349,7 @@ interface HTMLMarqueeElement extends HTMLElement {
     width: string;

     start(): void;

     stop(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "bounce", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "finish", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "start", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMarqueeElementEventMap>(type: K, listener: (this: HTMLMarqueeElement, ev: HTMLMarqueeElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10212,6 +9358,11 @@ declare var HTMLMarqueeElement: {
     new(): HTMLMarqueeElement;

 }

 

+interface HTMLMediaElementEventMap extends HTMLElementEventMap {

+    "encrypted": MediaEncryptedEvent;

+    "msneedkey": MSMediaKeyNeededEvent;

+}

+

 interface HTMLMediaElement extends HTMLElement {

     /**

       * Returns an AudioTrackList object with the audio tracks for a given video element.

@@ -10301,8 +9452,8 @@ interface HTMLMediaElement extends HTMLElement {
       * Gets the current network activity for the element.

       */

     readonly networkState: number;

-    onencrypted: (this: this, ev: MediaEncryptedEvent) => any;

-    onmsneedkey: (this: this, ev: MSMediaKeyNeededEvent) => any;

+    onencrypted: (this: HTMLMediaElement, ev: MediaEncryptedEvent) => any;

+    onmsneedkey: (this: HTMLMediaElement, ev: MSMediaKeyNeededEvent) => any;

     /**

       * Gets a flag that specifies whether playback is paused.

       */

@@ -10380,111 +9531,7 @@ interface HTMLMediaElement extends HTMLElement {
     readonly NETWORK_IDLE: number;

     readonly NETWORK_LOADING: number;

     readonly NETWORK_NO_SOURCE: number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10505,6 +9552,8 @@ declare var HTMLMediaElement: {
 interface HTMLMenuElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMenuElement: {

@@ -10537,6 +9586,8 @@ interface HTMLMetaElement extends HTMLElement {
       * Sets or retrieves the URL property that will be loaded after the specified time has elapsed. 

       */

     url: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMetaElement: {

@@ -10551,6 +9602,8 @@ interface HTMLMeterElement extends HTMLElement {
     min: number;

     optimum: number;

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMeterElement: {

@@ -10567,6 +9620,8 @@ interface HTMLModElement extends HTMLElement {
       * Sets or retrieves the date and time of a modification to the object.

       */

     dateTime: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLModElement: {

@@ -10581,6 +9636,8 @@ interface HTMLOListElement extends HTMLElement {
       */

     start: number;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOListElement: {

@@ -10700,6 +9757,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10738,6 +9796,8 @@ interface HTMLOptGroupElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptGroupElement: {

@@ -10775,6 +9835,8 @@ interface HTMLOptionElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptionElement: {

@@ -10801,6 +9863,8 @@ interface HTMLParagraphElement extends HTMLElement {
       */

     align: string;

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParagraphElement: {

@@ -10825,6 +9889,8 @@ interface HTMLParamElement extends HTMLElement {
       * Sets or retrieves the data type of the value attribute.

       */

     valueType: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParamElement: {

@@ -10833,6 +9899,8 @@ declare var HTMLParamElement: {
 }

 

 interface HTMLPictureElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPictureElement: {

@@ -10845,6 +9913,8 @@ interface HTMLPreElement extends HTMLElement {
       * Sets or gets a value that you can use to implement your own width functionality for the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPreElement: {

@@ -10869,6 +9939,8 @@ interface HTMLProgressElement extends HTMLElement {
       * Sets or gets the current value of a progress element. The value must be a non-negative number between 0 and the max value.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLProgressElement: {

@@ -10881,6 +9953,8 @@ interface HTMLQuoteElement extends HTMLElement {
       * Sets or retrieves reference information about the object.

       */

     cite: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLQuoteElement: {

@@ -10919,6 +9993,8 @@ interface HTMLScriptElement extends HTMLElement {
       */

     type: string;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLScriptElement: {

@@ -11013,6 +10089,8 @@ interface HTMLSelectElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -11037,6 +10115,8 @@ interface HTMLSourceElement extends HTMLElement {
      * Gets or sets the MIME type of a media resource.

      */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSourceElement: {

@@ -11045,6 +10125,8 @@ declare var HTMLSourceElement: {
 }

 

 interface HTMLSpanElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSpanElement: {

@@ -11062,6 +10144,7 @@ interface HTMLStyleElement extends HTMLElement, LinkStyle {
       * Retrieves the CSS language in which the style sheet is written.

       */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11079,6 +10162,8 @@ interface HTMLTableCaptionElement extends HTMLElement {
       * Sets or retrieves whether the caption appears at the top or bottom of the table.

       */

     vAlign: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableCaptionElement: {

@@ -11132,6 +10217,7 @@ interface HTMLTableCellElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11153,6 +10239,7 @@ interface HTMLTableColElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11273,6 +10360,8 @@ interface HTMLTableElement extends HTMLElement {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableElement: {

@@ -11324,6 +10413,7 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the cell in the tr. The default value is -1, which appends the new cell to the end of the cells collection.

       */

     insertCell(index?: number): HTMLTableDataCellElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11351,6 +10441,7 @@ interface HTMLTableSectionElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11361,6 +10452,8 @@ declare var HTMLTableSectionElement: {
 

 interface HTMLTemplateElement extends HTMLElement {

     readonly content: DocumentFragment;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTemplateElement: {

@@ -11466,6 +10559,8 @@ interface HTMLTextAreaElement extends HTMLElement {
       * @param end The offset into the text field for the end of the selection.

       */

     setSelectionRange(start: number, end: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTextAreaElement: {

@@ -11478,6 +10573,8 @@ interface HTMLTitleElement extends HTMLElement {
       * Retrieves or sets the text of the object as a string. 

       */

     text: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTitleElement: {

@@ -11497,6 +10594,8 @@ interface HTMLTrackElement extends HTMLElement {
     readonly LOADED: number;

     readonly LOADING: number;

     readonly NONE: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTrackElement: {

@@ -11511,6 +10610,8 @@ declare var HTMLTrackElement: {
 interface HTMLUListElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUListElement: {

@@ -11519,6 +10620,8 @@ declare var HTMLUListElement: {
 }

 

 interface HTMLUnknownElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUnknownElement: {

@@ -11526,6 +10629,12 @@ declare var HTMLUnknownElement: {
     new(): HTMLUnknownElement;

 }

 

+interface HTMLVideoElementEventMap extends HTMLMediaElementEventMap {

+    "MSVideoFormatChanged": Event;

+    "MSVideoFrameStepCompleted": Event;

+    "MSVideoOptimalLayoutChanged": Event;

+}

+

 interface HTMLVideoElement extends HTMLMediaElement {

     /**

       * Gets or sets the height of the video element.

@@ -11537,9 +10646,9 @@ interface HTMLVideoElement extends HTMLMediaElement {
     msStereo3DPackingMode: string;

     msStereo3DRenderMode: string;

     msZoom: boolean;

-    onMSVideoFormatChanged: (this: this, ev: Event) => any;

-    onMSVideoFrameStepCompleted: (this: this, ev: Event) => any;

-    onMSVideoOptimalLayoutChanged: (this: this, ev: Event) => any;

+    onMSVideoFormatChanged: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoFrameStepCompleted: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoOptimalLayoutChanged: (this: HTMLVideoElement, ev: Event) => any;

     /**

       * Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.

       */

@@ -11566,114 +10675,7 @@ interface HTMLVideoElement extends HTMLMediaElement {
     webkitEnterFullscreen(): void;

     webkitExitFullScreen(): void;

     webkitExitFullscreen(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFormatChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFrameStepCompleted", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoOptimalLayoutChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLVideoElementEventMap>(type: K, listener: (this: HTMLVideoElement, ev: HTMLVideoElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11741,11 +10743,16 @@ declare var IDBCursorWithValue: {
     new(): IDBCursorWithValue;

 }

 

+interface IDBDatabaseEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBDatabase extends EventTarget {

     readonly name: string;

     readonly objectStoreNames: DOMStringList;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBDatabase, ev: Event) => any;

+    onerror: (this: IDBDatabase, ev: ErrorEvent) => any;

     version: number;

     onversionchange: (ev: IDBVersionChangeEvent) => any;

     close(): void;

@@ -11753,8 +10760,7 @@ interface IDBDatabase extends EventTarget {
     deleteObjectStore(name: string): void;

     transaction(storeNames: string | string[], mode?: string): IDBTransaction;

     addEventListener(type: "versionchange", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11831,13 +10837,15 @@ declare var IDBObjectStore: {
     new(): IDBObjectStore;

 }

 

+interface IDBOpenDBRequestEventMap extends IDBRequestEventMap {

+    "blocked": Event;

+    "upgradeneeded": IDBVersionChangeEvent;

+}

+

 interface IDBOpenDBRequest extends IDBRequest {

-    onblocked: (this: this, ev: Event) => any;

-    onupgradeneeded: (this: this, ev: IDBVersionChangeEvent) => any;

-    addEventListener(type: "blocked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "upgradeneeded", listener: (this: this, ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

+    onblocked: (this: IDBOpenDBRequest, ev: Event) => any;

+    onupgradeneeded: (this: IDBOpenDBRequest, ev: IDBVersionChangeEvent) => any;

+    addEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11846,16 +10854,20 @@ declare var IDBOpenDBRequest: {
     new(): IDBOpenDBRequest;

 }

 

+interface IDBRequestEventMap {

+    "error": ErrorEvent;

+    "success": Event;

+}

+

 interface IDBRequest extends EventTarget {

     readonly error: DOMError;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onsuccess: (this: this, ev: Event) => any;

+    onerror: (this: IDBRequest, ev: ErrorEvent) => any;

+    onsuccess: (this: IDBRequest, ev: Event) => any;

     readonly readyState: string;

     readonly result: any;

     source: IDBObjectStore | IDBIndex | IDBCursor;

     readonly transaction: IDBTransaction;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11864,21 +10876,25 @@ declare var IDBRequest: {
     new(): IDBRequest;

 }

 

+interface IDBTransactionEventMap {

+    "abort": Event;

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBTransaction extends EventTarget {

     readonly db: IDBDatabase;

     readonly error: DOMError;

     readonly mode: string;

-    onabort: (this: this, ev: Event) => any;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBTransaction, ev: Event) => any;

+    oncomplete: (this: IDBTransaction, ev: Event) => any;

+    onerror: (this: IDBTransaction, ev: ErrorEvent) => any;

     abort(): void;

     objectStore(name: string): IDBObjectStore;

     readonly READ_ONLY: string;

     readonly READ_WRITE: string;

     readonly VERSION_CHANGE: string;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12011,18 +11027,22 @@ interface MSApp {
 }

 declare var MSApp: MSApp;

 

+interface MSAppAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSAppAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSAppAsyncOperation, ev: Event) => any;

+    onerror: (this: MSAppAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     start(): void;

     readonly COMPLETED: number;

     readonly ERROR: number;

     readonly STARTED: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSAppAsyncOperationEventMap>(type: K, listener: (this: MSAppAsyncOperation, ev: MSAppAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12177,6 +11197,8 @@ interface MSHTMLWebViewElement extends HTMLElement {
     navigateWithHttpRequestMessage(requestMessage: any): void;

     refresh(): void;

     stop(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var MSHTMLWebViewElement: {

@@ -12184,20 +11206,24 @@ declare var MSHTMLWebViewElement: {
     new(): MSHTMLWebViewElement;

 }

 

+interface MSInputMethodContextEventMap {

+    "MSCandidateWindowHide": Event;

+    "MSCandidateWindowShow": Event;

+    "MSCandidateWindowUpdate": Event;

+}

+

 interface MSInputMethodContext extends EventTarget {

     readonly compositionEndOffset: number;

     readonly compositionStartOffset: number;

-    oncandidatewindowhide: (this: this, ev: Event) => any;

-    oncandidatewindowshow: (this: this, ev: Event) => any;

-    oncandidatewindowupdate: (this: this, ev: Event) => any;

+    oncandidatewindowhide: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowshow: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowupdate: (this: MSInputMethodContext, ev: Event) => any;

     readonly target: HTMLElement;

     getCandidateWindowClientRect(): ClientRect;

     getCompositionAlternatives(): string[];

     hasComposition(): boolean;

     isCandidateWindowVisible(): boolean;

-    addEventListener(type: "MSCandidateWindowHide", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowShow", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowUpdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSInputMethodContextEventMap>(type: K, listener: (this: MSInputMethodContext, ev: MSInputMethodContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12363,6 +11389,7 @@ interface MSStreamReader extends EventTarget, MSBaseReader {
     readAsBlob(stream: MSStream, size?: number): void;

     readAsDataURL(stream: MSStream, size?: number): void;

     readAsText(stream: MSStream, encoding?: string, size?: number): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12371,10 +11398,15 @@ declare var MSStreamReader: {
     new(): MSStreamReader;

 }

 

+interface MSWebViewAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSWebViewAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSWebViewAsyncOperation, ev: Event) => any;

+    onerror: (this: MSWebViewAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     readonly target: MSHTMLWebViewElement;

@@ -12386,8 +11418,7 @@ interface MSWebViewAsyncOperation extends EventTarget {
     readonly TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;

     readonly TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;

     readonly TYPE_INVOKE_SCRIPT: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSWebViewAsyncOperationEventMap>(type: K, listener: (this: MSWebViewAsyncOperation, ev: MSWebViewAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12424,12 +11455,16 @@ declare var MediaDeviceInfo: {
     new(): MediaDeviceInfo;

 }

 

+interface MediaDevicesEventMap {

+    "devicechange": Event;

+}

+

 interface MediaDevices extends EventTarget {

-    ondevicechange: (this: this, ev: Event) => any;

+    ondevicechange: (this: MediaDevices, ev: Event) => any;

     enumerateDevices(): any;

     getSupportedConstraints(): MediaTrackSupportedConstraints;

     getUserMedia(constraints: MediaStreamConstraints): PromiseLike<MediaStream>;

-    addEventListener(type: "devicechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaDevicesEventMap>(type: K, listener: (this: MediaDevices, ev: MediaDevicesEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12579,13 +11614,20 @@ declare var MediaSource: {
     isTypeSupported(type: string): boolean;

 }

 

+interface MediaStreamEventMap {

+    "active": Event;

+    "addtrack": TrackEvent;

+    "inactive": Event;

+    "removetrack": TrackEvent;

+}

+

 interface MediaStream extends EventTarget {

     readonly active: boolean;

     readonly id: string;

-    onactive: (this: this, ev: Event) => any;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    oninactive: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onactive: (this: MediaStream, ev: Event) => any;

+    onaddtrack: (this: MediaStream, ev: TrackEvent) => any;

+    oninactive: (this: MediaStream, ev: Event) => any;

+    onremovetrack: (this: MediaStream, ev: TrackEvent) => any;

     addTrack(track: MediaStreamTrack): void;

     clone(): MediaStream;

     getAudioTracks(): MediaStreamTrack[];

@@ -12594,10 +11636,7 @@ interface MediaStream extends EventTarget {
     getVideoTracks(): MediaStreamTrack[];

     removeTrack(track: MediaStreamTrack): void;

     stop(): void;

-    addEventListener(type: "active", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "inactive", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: MediaStream, ev: MediaStreamEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12634,16 +11673,23 @@ declare var MediaStreamErrorEvent: {
     new(type: string, eventInitDict?: MediaStreamErrorEventInit): MediaStreamErrorEvent;

 }

 

+interface MediaStreamTrackEventMap {

+    "ended": MediaStreamErrorEvent;

+    "mute": Event;

+    "overconstrained": MediaStreamErrorEvent;

+    "unmute": Event;

+}

+

 interface MediaStreamTrack extends EventTarget {

     enabled: boolean;

     readonly id: string;

     readonly kind: string;

     readonly label: string;

     readonly muted: boolean;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onmute: (this: this, ev: Event) => any;

-    onoverconstrained: (this: this, ev: MediaStreamErrorEvent) => any;

-    onunmute: (this: this, ev: Event) => any;

+    onended: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onmute: (this: MediaStreamTrack, ev: Event) => any;

+    onoverconstrained: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onunmute: (this: MediaStreamTrack, ev: Event) => any;

     readonly readonly: boolean;

     readonly readyState: string;

     readonly remote: boolean;

@@ -12653,10 +11699,7 @@ interface MediaStreamTrack extends EventTarget {
     getConstraints(): MediaTrackConstraints;

     getSettings(): MediaTrackSettings;

     stop(): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "overconstrained", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unmute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamTrackEventMap>(type: K, listener: (this: MediaStreamTrack, ev: MediaStreamTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12697,12 +11740,16 @@ declare var MessageEvent: {
     new(type: string, eventInitDict?: MessageEventInit): MessageEvent;

 }

 

+interface MessagePortEventMap {

+    "message": MessageEvent;

+}

+

 interface MessagePort extends EventTarget {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: MessagePort, ev: MessageEvent) => any;

     close(): void;

     postMessage(message?: any, ports?: any): void;

     start(): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12880,7 +11927,6 @@ interface Navigator extends Object, NavigatorID, NavigatorOnLine, NavigatorConte
     msLaunchUri(uri: string, successCallback?: MSLaunchUriCallback, noHandlerCallback?: MSLaunchUriCallback): void;

     requestMediaKeySystemAccess(keySystem: string, supportedConfigurations: MediaKeySystemConfiguration[]): PromiseLike<MediaKeySystemAccess>;

     vibrate(pattern: number | number[]): boolean;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var Navigator: {

@@ -13055,10 +12101,14 @@ declare var OfflineAudioCompletionEvent: {
     new(): OfflineAudioCompletionEvent;

 }

 

+interface OfflineAudioContextEventMap {

+    "complete": Event;

+}

+

 interface OfflineAudioContext extends AudioContext {

-    oncomplete: (this: this, ev: Event) => any;

+    oncomplete: (this: OfflineAudioContext, ev: Event) => any;

     startRendering(): PromiseLike<AudioBuffer>;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OfflineAudioContextEventMap>(type: K, listener: (this: OfflineAudioContext, ev: OfflineAudioContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13067,15 +12117,19 @@ declare var OfflineAudioContext: {
     new(numberOfChannels: number, length: number, sampleRate: number): OfflineAudioContext;

 }

 

+interface OscillatorNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface OscillatorNode extends AudioNode {

     readonly detune: AudioParam;

     readonly frequency: AudioParam;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: OscillatorNode, ev: MediaStreamErrorEvent) => any;

     type: string;

     setPeriodicWave(periodicWave: PeriodicWave): void;

     start(when?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OscillatorNodeEventMap>(type: K, listener: (this: OscillatorNode, ev: OscillatorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13454,9 +12508,14 @@ declare var RTCDTMFToneChangeEvent: {
     new(type: string, eventInitDict: RTCDTMFToneChangeEventInit): RTCDTMFToneChangeEvent;

 }

 

+interface RTCDtlsTransportEventMap {

+    "dtlsstatechange": RTCDtlsTransportStateChangedEvent;

+    "error": ErrorEvent;

+}

+

 interface RTCDtlsTransport extends RTCStatsProvider {

-    ondtlsstatechange: ((this: this, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    ondtlsstatechange: ((this: RTCDtlsTransport, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

+    onerror: ((this: RTCDtlsTransport, ev: ErrorEvent) => any) | null;

     readonly state: string;

     readonly transport: RTCIceTransport;

     getLocalParameters(): RTCDtlsParameters;

@@ -13464,8 +12523,7 @@ interface RTCDtlsTransport extends RTCStatsProvider {
     getRemoteParameters(): RTCDtlsParameters | null;

     start(remoteParameters: RTCDtlsParameters): void;

     stop(): void;

-    addEventListener(type: "dtlsstatechange", listener: (this: this, ev: RTCDtlsTransportStateChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtlsTransportEventMap>(type: K, listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13483,15 +12541,19 @@ declare var RTCDtlsTransportStateChangedEvent: {
     new(): RTCDtlsTransportStateChangedEvent;

 }

 

+interface RTCDtmfSenderEventMap {

+    "tonechange": RTCDTMFToneChangeEvent;

+}

+

 interface RTCDtmfSender extends EventTarget {

     readonly canInsertDTMF: boolean;

     readonly duration: number;

     readonly interToneGap: number;

-    ontonechange: (this: this, ev: RTCDTMFToneChangeEvent) => any;

+    ontonechange: (this: RTCDtmfSender, ev: RTCDTMFToneChangeEvent) => any;

     readonly sender: RTCRtpSender;

     readonly toneBuffer: string;

     insertDTMF(tones: string, duration?: number, interToneGap?: number): void;

-    addEventListener(type: "tonechange", listener: (this: this, ev: RTCDTMFToneChangeEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtmfSenderEventMap>(type: K, listener: (this: RTCDtmfSender, ev: RTCDtmfSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13509,15 +12571,19 @@ declare var RTCIceCandidatePairChangedEvent: {
     new(): RTCIceCandidatePairChangedEvent;

 }

 

+interface RTCIceGathererEventMap {

+    "error": ErrorEvent;

+    "localcandidate": RTCIceGathererEvent;

+}

+

 interface RTCIceGatherer extends RTCStatsProvider {

     readonly component: string;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onlocalcandidate: ((this: this, ev: RTCIceGathererEvent) => any) | null;

+    onerror: ((this: RTCIceGatherer, ev: ErrorEvent) => any) | null;

+    onlocalcandidate: ((this: RTCIceGatherer, ev: RTCIceGathererEvent) => any) | null;

     createAssociatedGatherer(): RTCIceGatherer;

     getLocalCandidates(): RTCIceCandidate[];

     getLocalParameters(): RTCIceParameters;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "localcandidate", listener: (this: this, ev: RTCIceGathererEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceGathererEventMap>(type: K, listener: (this: RTCIceGatherer, ev: RTCIceGathererEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13535,11 +12601,16 @@ declare var RTCIceGathererEvent: {
     new(): RTCIceGathererEvent;

 }

 

+interface RTCIceTransportEventMap {

+    "candidatepairchange": RTCIceCandidatePairChangedEvent;

+    "icestatechange": RTCIceTransportStateChangedEvent;

+}

+

 interface RTCIceTransport extends RTCStatsProvider {

     readonly component: string;

     readonly iceGatherer: RTCIceGatherer | null;

-    oncandidatepairchange: ((this: this, ev: RTCIceCandidatePairChangedEvent) => any) | null;

-    onicestatechange: ((this: this, ev: RTCIceTransportStateChangedEvent) => any) | null;

+    oncandidatepairchange: ((this: RTCIceTransport, ev: RTCIceCandidatePairChangedEvent) => any) | null;

+    onicestatechange: ((this: RTCIceTransport, ev: RTCIceTransportStateChangedEvent) => any) | null;

     readonly role: string;

     readonly state: string;

     addRemoteCandidate(remoteCandidate: RTCIceCandidate | RTCIceCandidateComplete): void;

@@ -13550,8 +12621,7 @@ interface RTCIceTransport extends RTCStatsProvider {
     setRemoteCandidates(remoteCandidates: RTCIceCandidate[]): void;

     start(gatherer: RTCIceGatherer, remoteParameters: RTCIceParameters, role?: string): void;

     stop(): void;

-    addEventListener(type: "candidatepairchange", listener: (this: this, ev: RTCIceCandidatePairChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "icestatechange", listener: (this: this, ev: RTCIceTransportStateChangedEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceTransportEventMap>(type: K, listener: (this: RTCIceTransport, ev: RTCIceTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13569,8 +12639,12 @@ declare var RTCIceTransportStateChangedEvent: {
     new(): RTCIceTransportStateChangedEvent;

 }

 

+interface RTCRtpReceiverEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCRtpReceiver extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCRtpReceiver, ev: ErrorEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack | null;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -13579,7 +12653,7 @@ interface RTCRtpReceiver extends RTCStatsProvider {
     requestSendCSRC(csrc: number): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpReceiverEventMap>(type: K, listener: (this: RTCRtpReceiver, ev: RTCRtpReceiverEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13589,9 +12663,14 @@ declare var RTCRtpReceiver: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCRtpSenderEventMap {

+    "error": ErrorEvent;

+    "ssrcconflict": RTCSsrcConflictEvent;

+}

+

 interface RTCRtpSender extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onssrcconflict: ((this: this, ev: RTCSsrcConflictEvent) => any) | null;

+    onerror: ((this: RTCRtpSender, ev: ErrorEvent) => any) | null;

+    onssrcconflict: ((this: RTCRtpSender, ev: RTCSsrcConflictEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -13599,8 +12678,7 @@ interface RTCRtpSender extends RTCStatsProvider {
     setTrack(track: MediaStreamTrack): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ssrcconflict", listener: (this: this, ev: RTCSsrcConflictEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpSenderEventMap>(type: K, listener: (this: RTCRtpSender, ev: RTCRtpSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13610,10 +12688,14 @@ declare var RTCRtpSender: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCSrtpSdesTransportEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCSrtpSdesTransport extends EventTarget {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCSrtpSdesTransport, ev: ErrorEvent) => any) | null;

     readonly transport: RTCIceTransport;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCSrtpSdesTransportEventMap>(type: K, listener: (this: RTCSrtpSdesTransport, ev: RTCSrtpSdesTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13688,6 +12770,7 @@ declare var Range: {
 

 interface SVGAElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {

     readonly target: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13844,6 +12927,7 @@ interface SVGCircleElement extends SVGElement, SVGStylable, SVGTransformable, SV
     readonly cx: SVGAnimatedLength;

     readonly cy: SVGAnimatedLength;

     readonly r: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13854,6 +12938,7 @@ declare var SVGCircleElement: {
 

 interface SVGClipPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGUnitTypes {

     readonly clipPathUnits: SVGAnimatedEnumeration;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13876,6 +12961,8 @@ interface SVGComponentTransferFunctionElement extends SVGElement {
     readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGComponentTransferFunctionElement: {

@@ -13890,6 +12977,7 @@ declare var SVGComponentTransferFunctionElement: {
 }

 

 interface SVGDefsElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13899,6 +12987,7 @@ declare var SVGDefsElement: {
 }

 

 interface SVGDescElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13907,67 +12996,35 @@ declare var SVGDescElement: {
     new(): SVGDescElement;

 }

 

+interface SVGElementEventMap extends ElementEventMap {

+    "click": MouseEvent;

+    "dblclick": MouseEvent;

+    "focusin": FocusEvent;

+    "focusout": FocusEvent;

+    "load": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+}

+

 interface SVGElement extends Element {

-    onclick: (this: this, ev: MouseEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    onfocusin: (this: this, ev: FocusEvent) => any;

-    onfocusout: (this: this, ev: FocusEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onclick: (this: SVGElement, ev: MouseEvent) => any;

+    ondblclick: (this: SVGElement, ev: MouseEvent) => any;

+    onfocusin: (this: SVGElement, ev: FocusEvent) => any;

+    onfocusout: (this: SVGElement, ev: FocusEvent) => any;

+    onload: (this: SVGElement, ev: Event) => any;

+    onmousedown: (this: SVGElement, ev: MouseEvent) => any;

+    onmousemove: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseout: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseover: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseup: (this: SVGElement, ev: MouseEvent) => any;

     readonly ownerSVGElement: SVGSVGElement;

     readonly viewportElement: SVGElement;

     xmlbase: string;

     className: any;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14007,6 +13064,7 @@ interface SVGEllipseElement extends SVGElement, SVGStylable, SVGTransformable, S
     readonly cy: SVGAnimatedLength;

     readonly rx: SVGAnimatedLength;

     readonly ry: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14036,6 +13094,7 @@ interface SVGFEBlendElement extends SVGElement, SVGFilterPrimitiveStandardAttrib
     readonly SVG_FEBLEND_MODE_SCREEN: number;

     readonly SVG_FEBLEND_MODE_SOFT_LIGHT: number;

     readonly SVG_FEBLEND_MODE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14070,6 +13129,7 @@ interface SVGFEColorMatrixElement extends SVGElement, SVGFilterPrimitiveStandard
     readonly SVG_FECOLORMATRIX_TYPE_MATRIX: number;

     readonly SVG_FECOLORMATRIX_TYPE_SATURATE: number;

     readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14085,6 +13145,7 @@ declare var SVGFEColorMatrixElement: {
 

 interface SVGFEComponentTransferElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14108,6 +13169,7 @@ interface SVGFECompositeElement extends SVGElement, SVGFilterPrimitiveStandardAt
     readonly SVG_FECOMPOSITE_OPERATOR_OVER: number;

     readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;

     readonly SVG_FECOMPOSITE_OPERATOR_XOR: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14140,6 +13202,7 @@ interface SVGFEConvolveMatrixElement extends SVGElement, SVGFilterPrimitiveStand
     readonly SVG_EDGEMODE_NONE: number;

     readonly SVG_EDGEMODE_UNKNOWN: number;

     readonly SVG_EDGEMODE_WRAP: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14158,6 +13221,7 @@ interface SVGFEDiffuseLightingElement extends SVGElement, SVGFilterPrimitiveStan
     readonly kernelUnitLengthX: SVGAnimatedNumber;

     readonly kernelUnitLengthY: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14177,6 +13241,7 @@ interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStan
     readonly SVG_CHANNEL_G: number;

     readonly SVG_CHANNEL_R: number;

     readonly SVG_CHANNEL_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14193,6 +13258,8 @@ declare var SVGFEDisplacementMapElement: {
 interface SVGFEDistantLightElement extends SVGElement {

     readonly azimuth: SVGAnimatedNumber;

     readonly elevation: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEDistantLightElement: {

@@ -14201,6 +13268,7 @@ declare var SVGFEDistantLightElement: {
 }

 

 interface SVGFEFloodElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14246,6 +13314,7 @@ interface SVGFEGaussianBlurElement extends SVGElement, SVGFilterPrimitiveStandar
     readonly stdDeviationX: SVGAnimatedNumber;

     readonly stdDeviationY: SVGAnimatedNumber;

     setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14256,6 +13325,7 @@ declare var SVGFEGaussianBlurElement: {
 

 interface SVGFEImageElement extends SVGElement, SVGFilterPrimitiveStandardAttributes, SVGLangSpace, SVGURIReference, SVGExternalResourcesRequired {

     readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14265,6 +13335,7 @@ declare var SVGFEImageElement: {
 }

 

 interface SVGFEMergeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14275,6 +13346,8 @@ declare var SVGFEMergeElement: {
 

 interface SVGFEMergeNodeElement extends SVGElement {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEMergeNodeElement: {

@@ -14290,6 +13363,7 @@ interface SVGFEMorphologyElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_MORPHOLOGY_OPERATOR_DILATE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_ERODE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14305,6 +13379,7 @@ interface SVGFEOffsetElement extends SVGElement, SVGFilterPrimitiveStandardAttri
     readonly dx: SVGAnimatedNumber;

     readonly dy: SVGAnimatedNumber;

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14317,6 +13392,8 @@ interface SVGFEPointLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEPointLightElement: {

@@ -14331,6 +13408,7 @@ interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveSta
     readonly specularConstant: SVGAnimatedNumber;

     readonly specularExponent: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14348,6 +13426,8 @@ interface SVGFESpotLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFESpotLightElement: {

@@ -14357,6 +13437,7 @@ declare var SVGFESpotLightElement: {
 

 interface SVGFETileElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14378,6 +13459,7 @@ interface SVGFETurbulenceElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: number;

     readonly SVG_TURBULENCE_TYPE_TURBULENCE: number;

     readonly SVG_TURBULENCE_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14402,6 +13484,7 @@ interface SVGFilterElement extends SVGElement, SVGUnitTypes, SVGStylable, SVGLan
     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

     setFilterRes(filterResX: number, filterResY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14415,6 +13498,7 @@ interface SVGForeignObjectElement extends SVGElement, SVGStylable, SVGTransforma
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14424,6 +13508,7 @@ declare var SVGForeignObjectElement: {
 }

 

 interface SVGGElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14440,6 +13525,7 @@ interface SVGGradientElement extends SVGElement, SVGStylable, SVGExternalResourc
     readonly SVG_SPREADMETHOD_REFLECT: number;

     readonly SVG_SPREADMETHOD_REPEAT: number;

     readonly SVG_SPREADMETHOD_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14458,6 +13544,7 @@ interface SVGImageElement extends SVGElement, SVGStylable, SVGTransformable, SVG
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14523,6 +13610,7 @@ interface SVGLineElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly x2: SVGAnimatedLength;

     readonly y1: SVGAnimatedLength;

     readonly y2: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14559,6 +13647,7 @@ interface SVGMarkerElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExt
     readonly SVG_MARKER_ORIENT_ANGLE: number;

     readonly SVG_MARKER_ORIENT_AUTO: number;

     readonly SVG_MARKER_ORIENT_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14580,6 +13669,7 @@ interface SVGMaskElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14614,6 +13704,8 @@ declare var SVGMatrix: {
 }

 

 interface SVGMetadataElement extends SVGElement {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGMetadataElement: {

@@ -14669,6 +13761,7 @@ interface SVGPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     getPathSegAtLength(distance: number): number;

     getPointAtLength(distance: number): SVGPoint;

     getTotalLength(): number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14961,6 +14054,7 @@ interface SVGPatternElement extends SVGElement, SVGStylable, SVGTests, SVGLangSp
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14997,6 +14091,7 @@ declare var SVGPointList: {
 }

 

 interface SVGPolygonElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15006,6 +14101,7 @@ declare var SVGPolygonElement: {
 }

 

 interface SVGPolylineElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15084,6 +14180,7 @@ interface SVGRectElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15092,18 +14189,27 @@ declare var SVGRectElement: {
     new(): SVGRectElement;

 }

 

+interface SVGSVGElementEventMap extends SVGElementEventMap {

+    "SVGAbort": Event;

+    "SVGError": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "SVGUnload": Event;

+    "SVGZoom": SVGZoomEvent;

+}

+

 interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTests, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     contentScriptType: string;

     contentStyleType: string;

     currentScale: number;

     readonly currentTranslate: SVGPoint;

     readonly height: SVGAnimatedLength;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onzoom: (this: this, ev: SVGZoomEvent) => any;

+    onabort: (this: SVGSVGElement, ev: Event) => any;

+    onerror: (this: SVGSVGElement, ev: Event) => any;

+    onresize: (this: SVGSVGElement, ev: UIEvent) => any;

+    onscroll: (this: SVGSVGElement, ev: UIEvent) => any;

+    onunload: (this: SVGSVGElement, ev: Event) => any;

+    onzoom: (this: SVGSVGElement, ev: SVGZoomEvent) => any;

     readonly pixelUnitToMillimeterX: number;

     readonly pixelUnitToMillimeterY: number;

     readonly screenPixelToMillimeterX: number;

@@ -15135,58 +14241,7 @@ interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTest
     unpauseAnimations(): void;

     unsuspendRedraw(suspendHandleID: number): void;

     unsuspendRedrawAll(): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGAbort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGError", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGUnload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGZoom", listener: (this: this, ev: SVGZoomEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGSVGElementEventMap>(type: K, listener: (this: SVGSVGElement, ev: SVGSVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15197,6 +14252,7 @@ declare var SVGSVGElement: {
 

 interface SVGScriptElement extends SVGElement, SVGExternalResourcesRequired, SVGURIReference {

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15207,6 +14263,7 @@ declare var SVGScriptElement: {
 

 interface SVGStopElement extends SVGElement, SVGStylable {

     readonly offset: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15236,6 +14293,7 @@ interface SVGStyleElement extends SVGElement, SVGLangSpace {
     media: string;

     title: string;

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15245,6 +14303,7 @@ declare var SVGStyleElement: {
 }

 

 interface SVGSwitchElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15254,6 +14313,7 @@ declare var SVGSwitchElement: {
 }

 

 interface SVGSymbolElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15285,6 +14345,7 @@ interface SVGTextContentElement extends SVGElement, SVGStylable, SVGTests, SVGLa
     readonly LENGTHADJUST_SPACING: number;

     readonly LENGTHADJUST_SPACINGANDGLYPHS: number;

     readonly LENGTHADJUST_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15297,7 +14358,6 @@ declare var SVGTextContentElement: {
 }

 

 interface SVGTextElement extends SVGTextPositioningElement, SVGTransformable {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextElement: {

@@ -15315,7 +14375,6 @@ interface SVGTextPathElement extends SVGTextContentElement, SVGURIReference {
     readonly TEXTPATH_SPACINGTYPE_AUTO: number;

     readonly TEXTPATH_SPACINGTYPE_EXACT: number;

     readonly TEXTPATH_SPACINGTYPE_UNKNOWN: number;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextPathElement: {

@@ -15343,6 +14402,7 @@ declare var SVGTextPositioningElement: {
 }

 

 interface SVGTitleElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15414,6 +14474,7 @@ interface SVGUseElement extends SVGElement, SVGStylable, SVGTransformable, SVGTe
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15424,6 +14485,7 @@ declare var SVGUseElement: {
 

 interface SVGViewElement extends SVGElement, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     readonly viewTarget: SVGStringList;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15455,6 +14517,10 @@ declare var SVGZoomEvent: {
     new(): SVGZoomEvent;

 }

 

+interface ScreenEventMap {

+    "MSOrientationChange": Event;

+}

+

 interface Screen extends EventTarget {

     readonly availHeight: number;

     readonly availWidth: number;

@@ -15467,14 +14533,14 @@ interface Screen extends EventTarget {
     readonly logicalXDPI: number;

     readonly logicalYDPI: number;

     readonly msOrientation: string;

-    onmsorientationchange: (this: this, ev: Event) => any;

+    onmsorientationchange: (this: Screen, ev: Event) => any;

     readonly pixelDepth: number;

     readonly systemXDPI: number;

     readonly systemYDPI: number;

     readonly width: number;

     msLockOrientation(orientations: string | string[]): boolean;

     msUnlockOrientation(): void;

-    addEventListener(type: "MSOrientationChange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ScreenEventMap>(type: K, listener: (this: Screen, ev: ScreenEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15493,10 +14559,14 @@ declare var ScriptNotifyEvent: {
     new(): ScriptNotifyEvent;

 }

 

+interface ScriptProcessorNodeEventMap {

+    "audioprocess": AudioProcessingEvent;

+}

+

 interface ScriptProcessorNode extends AudioNode {

     readonly bufferSize: number;

-    onaudioprocess: (this: this, ev: AudioProcessingEvent) => any;

-    addEventListener(type: "audioprocess", listener: (this: this, ev: AudioProcessingEvent) => any, useCapture?: boolean): void;

+    onaudioprocess: (this: ScriptProcessorNode, ev: AudioProcessingEvent) => any;

+    addEventListener<K extends keyof ScriptProcessorNodeEventMap>(type: K, listener: (this: ScriptProcessorNode, ev: ScriptProcessorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15678,6 +14748,7 @@ declare var SubtleCrypto: {
 

 interface Text extends CharacterData {

     readonly wholeText: string;

+    readonly assignedSlot: HTMLSlotElement | null;

     splitText(offset: number): Text;

 }

 

@@ -15727,6 +14798,12 @@ declare var TextMetrics: {
     new(): TextMetrics;

 }

 

+interface TextTrackEventMap {

+    "cuechange": Event;

+    "error": ErrorEvent;

+    "load": Event;

+}

+

 interface TextTrack extends EventTarget {

     readonly activeCues: TextTrackCueList;

     readonly cues: TextTrackCueList;

@@ -15735,9 +14812,9 @@ interface TextTrack extends EventTarget {
     readonly label: string;

     readonly language: string;

     mode: any;

-    oncuechange: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

+    oncuechange: (this: TextTrack, ev: Event) => any;

+    onerror: (this: TextTrack, ev: ErrorEvent) => any;

+    onload: (this: TextTrack, ev: Event) => any;

     readonly readyState: number;

     addCue(cue: TextTrackCue): void;

     removeCue(cue: TextTrackCue): void;

@@ -15748,9 +14825,7 @@ interface TextTrack extends EventTarget {
     readonly LOADING: number;

     readonly NONE: number;

     readonly SHOWING: number;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackEventMap>(type: K, listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15766,18 +14841,22 @@ declare var TextTrack: {
     readonly SHOWING: number;

 }

 

+interface TextTrackCueEventMap {

+    "enter": Event;

+    "exit": Event;

+}

+

 interface TextTrackCue extends EventTarget {

     endTime: number;

     id: string;

-    onenter: (this: this, ev: Event) => any;

-    onexit: (this: this, ev: Event) => any;

+    onenter: (this: TextTrackCue, ev: Event) => any;

+    onexit: (this: TextTrackCue, ev: Event) => any;

     pauseOnExit: boolean;

     startTime: number;

     text: string;

     readonly track: TextTrack;

     getCueAsHTML(): DocumentFragment;

-    addEventListener(type: "enter", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "exit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15798,11 +14877,15 @@ declare var TextTrackCueList: {
     new(): TextTrackCueList;

 }

 

+interface TextTrackListEventMap {

+    "addtrack": TrackEvent;

+}

+

 interface TextTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: ((this: this, ev: TrackEvent) => any) | null;

+    onaddtrack: ((this: TextTrackList, ev: TrackEvent) => any) | null;

     item(index: number): TextTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackListEventMap>(type: K, listener: (this: TextTrackList, ev: TextTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: TextTrack;

 }

@@ -15992,17 +15075,21 @@ declare var VideoTrack: {
     new(): VideoTrack;

 }

 

+interface VideoTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface VideoTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: VideoTrackList, ev: TrackEvent) => any;

+    onchange: (this: VideoTrackList, ev: Event) => any;

+    onremovetrack: (this: VideoTrackList, ev: TrackEvent) => any;

     readonly selectedIndex: number;

     getTrackById(id: string): VideoTrack | null;

     item(index: number): VideoTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof VideoTrackListEventMap>(type: K, listener: (this: VideoTrackList, ev: VideoTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: VideoTrack;

 }

@@ -16948,14 +16035,21 @@ declare var WebKitPoint: {
     new(x?: number, y?: number): WebKitPoint;

 }

 

+interface WebSocketEventMap {

+    "close": CloseEvent;

+    "error": ErrorEvent;

+    "message": MessageEvent;

+    "open": Event;

+}

+

 interface WebSocket extends EventTarget {

     binaryType: string;

     readonly bufferedAmount: number;

     readonly extensions: string;

-    onclose: (this: this, ev: CloseEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onopen: (this: this, ev: Event) => any;

+    onclose: (this: WebSocket, ev: CloseEvent) => any;

+    onerror: (this: WebSocket, ev: ErrorEvent) => any;

+    onmessage: (this: WebSocket, ev: MessageEvent) => any;

+    onopen: (this: WebSocket, ev: Event) => any;

     readonly protocol: string;

     readonly readyState: number;

     readonly url: string;

@@ -16965,10 +16059,7 @@ interface WebSocket extends EventTarget {
     readonly CLOSING: number;

     readonly CONNECTING: number;

     readonly OPEN: number;

-    addEventListener(type: "close", listener: (this: this, ev: CloseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17004,6 +16095,95 @@ declare var WheelEvent: {
     readonly DOM_DELTA_PIXEL: number;

 }

 

+interface WindowEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "compassneedscalibration": Event;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "devicelight": DeviceLightEvent;

+    "devicemotion": DeviceMotionEvent;

+    "deviceorientation": DeviceOrientationEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "message": MessageEvent;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "popstate": PopStateEvent;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "stalled": Event;

+    "storage": StorageEvent;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "unload": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface Window extends EventTarget, WindowTimers, WindowSessionStorage, WindowLocalStorage, WindowConsole, GlobalEventHandlers, IDBEnvironment, WindowBase64 {

     readonly applicationCache: ApplicationCache;

     readonly clientInformation: Navigator;

@@ -17028,97 +16208,97 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     name: string;

     readonly navigator: Navigator;

     offscreenBuffering: string | boolean;

-    onabort: (this: this, ev: UIEvent) => any;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncompassneedscalibration: (this: this, ev: Event) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondevicelight: (this: this, ev: DeviceLightEvent) => any;

-    ondevicemotion: (this: this, ev: DeviceMotionEvent) => any;

-    ondeviceorientation: (this: this, ev: DeviceOrientationEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onabort: (this: Window, ev: UIEvent) => any;

+    onafterprint: (this: Window, ev: Event) => any;

+    onbeforeprint: (this: Window, ev: Event) => any;

+    onbeforeunload: (this: Window, ev: BeforeUnloadEvent) => any;

+    onblur: (this: Window, ev: FocusEvent) => any;

+    oncanplay: (this: Window, ev: Event) => any;

+    oncanplaythrough: (this: Window, ev: Event) => any;

+    onchange: (this: Window, ev: Event) => any;

+    onclick: (this: Window, ev: MouseEvent) => any;

+    oncompassneedscalibration: (this: Window, ev: Event) => any;

+    oncontextmenu: (this: Window, ev: PointerEvent) => any;

+    ondblclick: (this: Window, ev: MouseEvent) => any;

+    ondevicelight: (this: Window, ev: DeviceLightEvent) => any;

+    ondevicemotion: (this: Window, ev: DeviceMotionEvent) => any;

+    ondeviceorientation: (this: Window, ev: DeviceOrientationEvent) => any;

+    ondrag: (this: Window, ev: DragEvent) => any;

+    ondragend: (this: Window, ev: DragEvent) => any;

+    ondragenter: (this: Window, ev: DragEvent) => any;

+    ondragleave: (this: Window, ev: DragEvent) => any;

+    ondragover: (this: Window, ev: DragEvent) => any;

+    ondragstart: (this: Window, ev: DragEvent) => any;

+    ondrop: (this: Window, ev: DragEvent) => any;

+    ondurationchange: (this: Window, ev: Event) => any;

+    onemptied: (this: Window, ev: Event) => any;

+    onended: (this: Window, ev: MediaStreamErrorEvent) => any;

     onerror: ErrorEventHandler;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

-    onreset: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

+    onfocus: (this: Window, ev: FocusEvent) => any;

+    onhashchange: (this: Window, ev: HashChangeEvent) => any;

+    oninput: (this: Window, ev: Event) => any;

+    oninvalid: (this: Window, ev: Event) => any;

+    onkeydown: (this: Window, ev: KeyboardEvent) => any;

+    onkeypress: (this: Window, ev: KeyboardEvent) => any;

+    onkeyup: (this: Window, ev: KeyboardEvent) => any;

+    onload: (this: Window, ev: Event) => any;

+    onloadeddata: (this: Window, ev: Event) => any;

+    onloadedmetadata: (this: Window, ev: Event) => any;

+    onloadstart: (this: Window, ev: Event) => any;

+    onmessage: (this: Window, ev: MessageEvent) => any;

+    onmousedown: (this: Window, ev: MouseEvent) => any;

+    onmouseenter: (this: Window, ev: MouseEvent) => any;

+    onmouseleave: (this: Window, ev: MouseEvent) => any;

+    onmousemove: (this: Window, ev: MouseEvent) => any;

+    onmouseout: (this: Window, ev: MouseEvent) => any;

+    onmouseover: (this: Window, ev: MouseEvent) => any;

+    onmouseup: (this: Window, ev: MouseEvent) => any;

+    onmousewheel: (this: Window, ev: WheelEvent) => any;

+    onmsgesturechange: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Window, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Window, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Window, ev: MSGestureEvent) => any;

+    onmspointercancel: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Window, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Window, ev: MSPointerEvent) => any;

+    onoffline: (this: Window, ev: Event) => any;

+    ononline: (this: Window, ev: Event) => any;

+    onorientationchange: (this: Window, ev: Event) => any;

+    onpagehide: (this: Window, ev: PageTransitionEvent) => any;

+    onpageshow: (this: Window, ev: PageTransitionEvent) => any;

+    onpause: (this: Window, ev: Event) => any;

+    onplay: (this: Window, ev: Event) => any;

+    onplaying: (this: Window, ev: Event) => any;

+    onpopstate: (this: Window, ev: PopStateEvent) => any;

+    onprogress: (this: Window, ev: ProgressEvent) => any;

+    onratechange: (this: Window, ev: Event) => any;

+    onreadystatechange: (this: Window, ev: ProgressEvent) => any;

+    onreset: (this: Window, ev: Event) => any;

+    onresize: (this: Window, ev: UIEvent) => any;

+    onscroll: (this: Window, ev: UIEvent) => any;

+    onseeked: (this: Window, ev: Event) => any;

+    onseeking: (this: Window, ev: Event) => any;

+    onselect: (this: Window, ev: UIEvent) => any;

+    onstalled: (this: Window, ev: Event) => any;

+    onstorage: (this: Window, ev: StorageEvent) => any;

+    onsubmit: (this: Window, ev: Event) => any;

+    onsuspend: (this: Window, ev: Event) => any;

+    ontimeupdate: (this: Window, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onunload: (this: Window, ev: Event) => any;

+    onvolumechange: (this: Window, ev: Event) => any;

+    onwaiting: (this: Window, ev: Event) => any;

     opener: any;

     orientation: string | number;

     readonly outerHeight: number;

@@ -17177,101 +16357,7 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     scroll(options?: ScrollToOptions): void;

     scrollTo(options?: ScrollToOptions): void;

     scrollBy(options?: ScrollToOptions): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "compassneedscalibration", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicelight", listener: (this: this, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicemotion", listener: (this: this, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deviceorientation", listener: (this: this, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17280,12 +16366,15 @@ declare var Window: {
     new(): Window;

 }

 

+interface WorkerEventMap extends AbstractWorkerEventMap {

+    "message": MessageEvent;

+}

+

 interface Worker extends EventTarget, AbstractWorker {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: Worker, ev: MessageEvent) => any;

     postMessage(message: any, ports?: any): void;

     terminate(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17295,6 +16384,8 @@ declare var Worker: {
 }

 

 interface XMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var XMLDocument: {

@@ -17302,8 +16393,12 @@ declare var XMLDocument: {
     new(): XMLDocument;

 }

 

+interface XMLHttpRequestEventMap extends XMLHttpRequestEventTargetEventMap {

+    "readystatechange": Event;

+}

+

 interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {

-    onreadystatechange: (this: this, ev: Event) => any;

+    onreadystatechange: (this: XMLHttpRequest, ev: Event) => any;

     readonly readyState: number;

     readonly response: any;

     readonly responseText: string;

@@ -17331,14 +16426,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly LOADING: number;

     readonly OPENED: number;

     readonly UNSENT: number;

-    addEventListener(type: "abort", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17354,6 +16442,7 @@ declare var XMLHttpRequest: {
 }

 

 interface XMLHttpRequestUpload extends EventTarget, XMLHttpRequestEventTarget {

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17374,7 +16463,7 @@ declare var XMLSerializer: {
 interface XPathEvaluator {

     createExpression(expression: string, resolver: XPathNSResolver): XPathExpression;

     createNSResolver(nodeResolver?: Node): XPathNSResolver;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathEvaluator: {

@@ -17383,7 +16472,7 @@ declare var XPathEvaluator: {
 }

 

 interface XPathExpression {

-    evaluate(contextNode: Node, type: number, result: XPathResult): XPathExpression;

+    evaluate(contextNode: Node, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathExpression: {

@@ -17453,9 +16542,13 @@ declare var XSLTProcessor: {
     new(): XSLTProcessor;

 }

 

+interface AbstractWorkerEventMap {

+    "error": ErrorEvent;

+}

+

 interface AbstractWorker {

-    onerror: (this: this, ev: ErrorEvent) => any;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    onerror: (this: AbstractWorker, ev: ErrorEvent) => any;

+    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17566,25 +16659,29 @@ interface GetSVGDocument {
     getSVGDocument(): Document;

 }

 

+interface GlobalEventHandlersEventMap {

+    "pointercancel": PointerEvent;

+    "pointerdown": PointerEvent;

+    "pointerenter": PointerEvent;

+    "pointerleave": PointerEvent;

+    "pointermove": PointerEvent;

+    "pointerout": PointerEvent;

+    "pointerover": PointerEvent;

+    "pointerup": PointerEvent;

+    "wheel": WheelEvent;

+}

+

 interface GlobalEventHandlers {

-    onpointercancel: (this: this, ev: PointerEvent) => any;

-    onpointerdown: (this: this, ev: PointerEvent) => any;

-    onpointerenter: (this: this, ev: PointerEvent) => any;

-    onpointerleave: (this: this, ev: PointerEvent) => any;

-    onpointermove: (this: this, ev: PointerEvent) => any;

-    onpointerout: (this: this, ev: PointerEvent) => any;

-    onpointerover: (this: this, ev: PointerEvent) => any;

-    onpointerup: (this: this, ev: PointerEvent) => any;

-    onwheel: (this: this, ev: WheelEvent) => any;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    onpointercancel: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerdown: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerenter: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerleave: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointermove: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerout: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerover: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerup: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onwheel: (this: GlobalEventHandlers, ev: WheelEvent) => any;

+    addEventListener<K extends keyof GlobalEventHandlersEventMap>(type: K, listener: (this: GlobalEventHandlers, ev: GlobalEventHandlersEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17611,25 +16708,29 @@ interface LinkStyle {
     readonly sheet: StyleSheet;

 }

 

+interface MSBaseReaderEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+}

+

 interface MSBaseReader {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onabort: (this: MSBaseReader, ev: Event) => any;

+    onerror: (this: MSBaseReader, ev: ErrorEvent) => any;

+    onload: (this: MSBaseReader, ev: Event) => any;

+    onloadend: (this: MSBaseReader, ev: ProgressEvent) => any;

+    onloadstart: (this: MSBaseReader, ev: Event) => any;

+    onprogress: (this: MSBaseReader, ev: ProgressEvent) => any;

     readonly readyState: number;

     readonly result: any;

     abort(): void;

     readonly DONE: number;

     readonly EMPTY: number;

     readonly LOADING: number;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17678,359 +16779,9 @@ interface NavigatorUserMedia {
 }

 

 interface NodeSelector {

-    querySelector(selectors: "a"): HTMLAnchorElement | null;

-    querySelector(selectors: "abbr"): HTMLElement | null;

-    querySelector(selectors: "acronym"): HTMLElement | null;

-    querySelector(selectors: "address"): HTMLElement | null;

-    querySelector(selectors: "applet"): HTMLAppletElement | null;

-    querySelector(selectors: "area"): HTMLAreaElement | null;

-    querySelector(selectors: "article"): HTMLElement | null;

-    querySelector(selectors: "aside"): HTMLElement | null;

-    querySelector(selectors: "audio"): HTMLAudioElement | null;

-    querySelector(selectors: "b"): HTMLElement | null;

-    querySelector(selectors: "base"): HTMLBaseElement | null;

-    querySelector(selectors: "basefont"): HTMLBaseFontElement | null;

-    querySelector(selectors: "bdo"): HTMLElement | null;

-    querySelector(selectors: "big"): HTMLElement | null;

-    querySelector(selectors: "blockquote"): HTMLQuoteElement | null;

-    querySelector(selectors: "body"): HTMLBodyElement | null;

-    querySelector(selectors: "br"): HTMLBRElement | null;

-    querySelector(selectors: "button"): HTMLButtonElement | null;

-    querySelector(selectors: "canvas"): HTMLCanvasElement | null;

-    querySelector(selectors: "caption"): HTMLTableCaptionElement | null;

-    querySelector(selectors: "center"): HTMLElement | null;

-    querySelector(selectors: "circle"): SVGCircleElement | null;

-    querySelector(selectors: "cite"): HTMLElement | null;

-    querySelector(selectors: "clippath"): SVGClipPathElement | null;

-    querySelector(selectors: "code"): HTMLElement | null;

-    querySelector(selectors: "col"): HTMLTableColElement | null;

-    querySelector(selectors: "colgroup"): HTMLTableColElement | null;

-    querySelector(selectors: "datalist"): HTMLDataListElement | null;

-    querySelector(selectors: "dd"): HTMLElement | null;

-    querySelector(selectors: "defs"): SVGDefsElement | null;

-    querySelector(selectors: "del"): HTMLModElement | null;

-    querySelector(selectors: "desc"): SVGDescElement | null;

-    querySelector(selectors: "dfn"): HTMLElement | null;

-    querySelector(selectors: "dir"): HTMLDirectoryElement | null;

-    querySelector(selectors: "div"): HTMLDivElement | null;

-    querySelector(selectors: "dl"): HTMLDListElement | null;

-    querySelector(selectors: "dt"): HTMLElement | null;

-    querySelector(selectors: "ellipse"): SVGEllipseElement | null;

-    querySelector(selectors: "em"): HTMLElement | null;

-    querySelector(selectors: "embed"): HTMLEmbedElement | null;

-    querySelector(selectors: "feblend"): SVGFEBlendElement | null;

-    querySelector(selectors: "fecolormatrix"): SVGFEColorMatrixElement | null;

-    querySelector(selectors: "fecomponenttransfer"): SVGFEComponentTransferElement | null;

-    querySelector(selectors: "fecomposite"): SVGFECompositeElement | null;

-    querySelector(selectors: "feconvolvematrix"): SVGFEConvolveMatrixElement | null;

-    querySelector(selectors: "fediffuselighting"): SVGFEDiffuseLightingElement | null;

-    querySelector(selectors: "fedisplacementmap"): SVGFEDisplacementMapElement | null;

-    querySelector(selectors: "fedistantlight"): SVGFEDistantLightElement | null;

-    querySelector(selectors: "feflood"): SVGFEFloodElement | null;

-    querySelector(selectors: "fefunca"): SVGFEFuncAElement | null;

-    querySelector(selectors: "fefuncb"): SVGFEFuncBElement | null;

-    querySelector(selectors: "fefuncg"): SVGFEFuncGElement | null;

-    querySelector(selectors: "fefuncr"): SVGFEFuncRElement | null;

-    querySelector(selectors: "fegaussianblur"): SVGFEGaussianBlurElement | null;

-    querySelector(selectors: "feimage"): SVGFEImageElement | null;

-    querySelector(selectors: "femerge"): SVGFEMergeElement | null;

-    querySelector(selectors: "femergenode"): SVGFEMergeNodeElement | null;

-    querySelector(selectors: "femorphology"): SVGFEMorphologyElement | null;

-    querySelector(selectors: "feoffset"): SVGFEOffsetElement | null;

-    querySelector(selectors: "fepointlight"): SVGFEPointLightElement | null;

-    querySelector(selectors: "fespecularlighting"): SVGFESpecularLightingElement | null;

-    querySelector(selectors: "fespotlight"): SVGFESpotLightElement | null;

-    querySelector(selectors: "fetile"): SVGFETileElement | null;

-    querySelector(selectors: "feturbulence"): SVGFETurbulenceElement | null;

-    querySelector(selectors: "fieldset"): HTMLFieldSetElement | null;

-    querySelector(selectors: "figcaption"): HTMLElement | null;

-    querySelector(selectors: "figure"): HTMLElement | null;

-    querySelector(selectors: "filter"): SVGFilterElement | null;

-    querySelector(selectors: "font"): HTMLFontElement | null;

-    querySelector(selectors: "footer"): HTMLElement | null;

-    querySelector(selectors: "foreignobject"): SVGForeignObjectElement | null;

-    querySelector(selectors: "form"): HTMLFormElement | null;

-    querySelector(selectors: "frame"): HTMLFrameElement | null;

-    querySelector(selectors: "frameset"): HTMLFrameSetElement | null;

-    querySelector(selectors: "g"): SVGGElement | null;

-    querySelector(selectors: "h1"): HTMLHeadingElement | null;

-    querySelector(selectors: "h2"): HTMLHeadingElement | null;

-    querySelector(selectors: "h3"): HTMLHeadingElement | null;

-    querySelector(selectors: "h4"): HTMLHeadingElement | null;

-    querySelector(selectors: "h5"): HTMLHeadingElement | null;

-    querySelector(selectors: "h6"): HTMLHeadingElement | null;

-    querySelector(selectors: "head"): HTMLHeadElement | null;

-    querySelector(selectors: "header"): HTMLElement | null;

-    querySelector(selectors: "hgroup"): HTMLElement | null;

-    querySelector(selectors: "hr"): HTMLHRElement | null;

-    querySelector(selectors: "html"): HTMLHtmlElement | null;

-    querySelector(selectors: "i"): HTMLElement | null;

-    querySelector(selectors: "iframe"): HTMLIFrameElement | null;

-    querySelector(selectors: "image"): SVGImageElement | null;

-    querySelector(selectors: "img"): HTMLImageElement | null;

-    querySelector(selectors: "input"): HTMLInputElement | null;

-    querySelector(selectors: "ins"): HTMLModElement | null;

-    querySelector(selectors: "isindex"): HTMLUnknownElement | null;

-    querySelector(selectors: "kbd"): HTMLElement | null;

-    querySelector(selectors: "keygen"): HTMLElement | null;

-    querySelector(selectors: "label"): HTMLLabelElement | null;

-    querySelector(selectors: "legend"): HTMLLegendElement | null;

-    querySelector(selectors: "li"): HTMLLIElement | null;

-    querySelector(selectors: "line"): SVGLineElement | null;

-    querySelector(selectors: "lineargradient"): SVGLinearGradientElement | null;

-    querySelector(selectors: "link"): HTMLLinkElement | null;

-    querySelector(selectors: "listing"): HTMLPreElement | null;

-    querySelector(selectors: "map"): HTMLMapElement | null;

-    querySelector(selectors: "mark"): HTMLElement | null;

-    querySelector(selectors: "marker"): SVGMarkerElement | null;

-    querySelector(selectors: "marquee"): HTMLMarqueeElement | null;

-    querySelector(selectors: "mask"): SVGMaskElement | null;

-    querySelector(selectors: "menu"): HTMLMenuElement | null;

-    querySelector(selectors: "meta"): HTMLMetaElement | null;

-    querySelector(selectors: "metadata"): SVGMetadataElement | null;

-    querySelector(selectors: "meter"): HTMLMeterElement | null;

-    querySelector(selectors: "nav"): HTMLElement | null;

-    querySelector(selectors: "nextid"): HTMLUnknownElement | null;

-    querySelector(selectors: "nobr"): HTMLElement | null;

-    querySelector(selectors: "noframes"): HTMLElement | null;

-    querySelector(selectors: "noscript"): HTMLElement | null;

-    querySelector(selectors: "object"): HTMLObjectElement | null;

-    querySelector(selectors: "ol"): HTMLOListElement | null;

-    querySelector(selectors: "optgroup"): HTMLOptGroupElement | null;

-    querySelector(selectors: "option"): HTMLOptionElement | null;

-    querySelector(selectors: "p"): HTMLParagraphElement | null;

-    querySelector(selectors: "param"): HTMLParamElement | null;

-    querySelector(selectors: "path"): SVGPathElement | null;

-    querySelector(selectors: "pattern"): SVGPatternElement | null;

-    querySelector(selectors: "picture"): HTMLPictureElement | null;

-    querySelector(selectors: "plaintext"): HTMLElement | null;

-    querySelector(selectors: "polygon"): SVGPolygonElement | null;

-    querySelector(selectors: "polyline"): SVGPolylineElement | null;

-    querySelector(selectors: "pre"): HTMLPreElement | null;

-    querySelector(selectors: "progress"): HTMLProgressElement | null;

-    querySelector(selectors: "q"): HTMLQuoteElement | null;

-    querySelector(selectors: "radialgradient"): SVGRadialGradientElement | null;

-    querySelector(selectors: "rect"): SVGRectElement | null;

-    querySelector(selectors: "rt"): HTMLElement | null;

-    querySelector(selectors: "ruby"): HTMLElement | null;

-    querySelector(selectors: "s"): HTMLElement | null;

-    querySelector(selectors: "samp"): HTMLElement | null;

-    querySelector(selectors: "script"): HTMLScriptElement | null;

-    querySelector(selectors: "section"): HTMLElement | null;

-    querySelector(selectors: "select"): HTMLSelectElement | null;

-    querySelector(selectors: "small"): HTMLElement | null;

-    querySelector(selectors: "source"): HTMLSourceElement | null;

-    querySelector(selectors: "span"): HTMLSpanElement | null;

-    querySelector(selectors: "stop"): SVGStopElement | null;

-    querySelector(selectors: "strike"): HTMLElement | null;

-    querySelector(selectors: "strong"): HTMLElement | null;

-    querySelector(selectors: "style"): HTMLStyleElement | null;

-    querySelector(selectors: "sub"): HTMLElement | null;

-    querySelector(selectors: "sup"): HTMLElement | null;

-    querySelector(selectors: "svg"): SVGSVGElement | null;

-    querySelector(selectors: "switch"): SVGSwitchElement | null;

-    querySelector(selectors: "symbol"): SVGSymbolElement | null;

-    querySelector(selectors: "table"): HTMLTableElement | null;

-    querySelector(selectors: "tbody"): HTMLTableSectionElement | null;

-    querySelector(selectors: "td"): HTMLTableDataCellElement | null;

-    querySelector(selectors: "template"): HTMLTemplateElement | null;

-    querySelector(selectors: "text"): SVGTextElement | null;

-    querySelector(selectors: "textpath"): SVGTextPathElement | null;

-    querySelector(selectors: "textarea"): HTMLTextAreaElement | null;

-    querySelector(selectors: "tfoot"): HTMLTableSectionElement | null;

-    querySelector(selectors: "th"): HTMLTableHeaderCellElement | null;

-    querySelector(selectors: "thead"): HTMLTableSectionElement | null;

-    querySelector(selectors: "title"): HTMLTitleElement | null;

-    querySelector(selectors: "tr"): HTMLTableRowElement | null;

-    querySelector(selectors: "track"): HTMLTrackElement | null;

-    querySelector(selectors: "tspan"): SVGTSpanElement | null;

-    querySelector(selectors: "tt"): HTMLElement | null;

-    querySelector(selectors: "u"): HTMLElement | null;

-    querySelector(selectors: "ul"): HTMLUListElement | null;

-    querySelector(selectors: "use"): SVGUseElement | null;

-    querySelector(selectors: "var"): HTMLElement | null;

-    querySelector(selectors: "video"): HTMLVideoElement | null;

-    querySelector(selectors: "view"): SVGViewElement | null;

-    querySelector(selectors: "wbr"): HTMLElement | null;

-    querySelector(selectors: "x-ms-webview"): MSHTMLWebViewElement | null;

-    querySelector(selectors: "xmp"): HTMLPreElement | null;

+    querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | null;

     querySelector(selectors: string): Element | null;

-    querySelectorAll(selectors: "a"): NodeListOf<HTMLAnchorElement>;

-    querySelectorAll(selectors: "abbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "acronym"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "address"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "applet"): NodeListOf<HTMLAppletElement>;

-    querySelectorAll(selectors: "area"): NodeListOf<HTMLAreaElement>;

-    querySelectorAll(selectors: "article"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "aside"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "audio"): NodeListOf<HTMLAudioElement>;

-    querySelectorAll(selectors: "b"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "base"): NodeListOf<HTMLBaseElement>;

-    querySelectorAll(selectors: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    querySelectorAll(selectors: "bdo"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "big"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "body"): NodeListOf<HTMLBodyElement>;

-    querySelectorAll(selectors: "br"): NodeListOf<HTMLBRElement>;

-    querySelectorAll(selectors: "button"): NodeListOf<HTMLButtonElement>;

-    querySelectorAll(selectors: "canvas"): NodeListOf<HTMLCanvasElement>;

-    querySelectorAll(selectors: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    querySelectorAll(selectors: "center"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "circle"): NodeListOf<SVGCircleElement>;

-    querySelectorAll(selectors: "cite"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "clippath"): NodeListOf<SVGClipPathElement>;

-    querySelectorAll(selectors: "code"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "col"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "colgroup"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "datalist"): NodeListOf<HTMLDataListElement>;

-    querySelectorAll(selectors: "dd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "defs"): NodeListOf<SVGDefsElement>;

-    querySelectorAll(selectors: "del"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "desc"): NodeListOf<SVGDescElement>;

-    querySelectorAll(selectors: "dfn"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "dir"): NodeListOf<HTMLDirectoryElement>;

-    querySelectorAll(selectors: "div"): NodeListOf<HTMLDivElement>;

-    querySelectorAll(selectors: "dl"): NodeListOf<HTMLDListElement>;

-    querySelectorAll(selectors: "dt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ellipse"): NodeListOf<SVGEllipseElement>;

-    querySelectorAll(selectors: "em"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "embed"): NodeListOf<HTMLEmbedElement>;

-    querySelectorAll(selectors: "feblend"): NodeListOf<SVGFEBlendElement>;

-    querySelectorAll(selectors: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    querySelectorAll(selectors: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    querySelectorAll(selectors: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    querySelectorAll(selectors: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    querySelectorAll(selectors: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    querySelectorAll(selectors: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    querySelectorAll(selectors: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    querySelectorAll(selectors: "feflood"): NodeListOf<SVGFEFloodElement>;

-    querySelectorAll(selectors: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    querySelectorAll(selectors: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    querySelectorAll(selectors: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    querySelectorAll(selectors: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    querySelectorAll(selectors: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    querySelectorAll(selectors: "feimage"): NodeListOf<SVGFEImageElement>;

-    querySelectorAll(selectors: "femerge"): NodeListOf<SVGFEMergeElement>;

-    querySelectorAll(selectors: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    querySelectorAll(selectors: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    querySelectorAll(selectors: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    querySelectorAll(selectors: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    querySelectorAll(selectors: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    querySelectorAll(selectors: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    querySelectorAll(selectors: "fetile"): NodeListOf<SVGFETileElement>;

-    querySelectorAll(selectors: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    querySelectorAll(selectors: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    querySelectorAll(selectors: "figcaption"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "figure"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "filter"): NodeListOf<SVGFilterElement>;

-    querySelectorAll(selectors: "font"): NodeListOf<HTMLFontElement>;

-    querySelectorAll(selectors: "footer"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    querySelectorAll(selectors: "form"): NodeListOf<HTMLFormElement>;

-    querySelectorAll(selectors: "frame"): NodeListOf<HTMLFrameElement>;

-    querySelectorAll(selectors: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    querySelectorAll(selectors: "g"): NodeListOf<SVGGElement>;

-    querySelectorAll(selectors: "h1"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h2"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h3"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h4"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h5"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h6"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "head"): NodeListOf<HTMLHeadElement>;

-    querySelectorAll(selectors: "header"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hgroup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hr"): NodeListOf<HTMLHRElement>;

-    querySelectorAll(selectors: "html"): NodeListOf<HTMLHtmlElement>;

-    querySelectorAll(selectors: "i"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "iframe"): NodeListOf<HTMLIFrameElement>;

-    querySelectorAll(selectors: "image"): NodeListOf<SVGImageElement>;

-    querySelectorAll(selectors: "img"): NodeListOf<HTMLImageElement>;

-    querySelectorAll(selectors: "input"): NodeListOf<HTMLInputElement>;

-    querySelectorAll(selectors: "ins"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "isindex"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "kbd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "keygen"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "label"): NodeListOf<HTMLLabelElement>;

-    querySelectorAll(selectors: "legend"): NodeListOf<HTMLLegendElement>;

-    querySelectorAll(selectors: "li"): NodeListOf<HTMLLIElement>;

-    querySelectorAll(selectors: "line"): NodeListOf<SVGLineElement>;

-    querySelectorAll(selectors: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    querySelectorAll(selectors: "link"): NodeListOf<HTMLLinkElement>;

-    querySelectorAll(selectors: "listing"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "map"): NodeListOf<HTMLMapElement>;

-    querySelectorAll(selectors: "mark"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "marker"): NodeListOf<SVGMarkerElement>;

-    querySelectorAll(selectors: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    querySelectorAll(selectors: "mask"): NodeListOf<SVGMaskElement>;

-    querySelectorAll(selectors: "menu"): NodeListOf<HTMLMenuElement>;

-    querySelectorAll(selectors: "meta"): NodeListOf<HTMLMetaElement>;

-    querySelectorAll(selectors: "metadata"): NodeListOf<SVGMetadataElement>;

-    querySelectorAll(selectors: "meter"): NodeListOf<HTMLMeterElement>;

-    querySelectorAll(selectors: "nav"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "nextid"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "nobr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noframes"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noscript"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "object"): NodeListOf<HTMLObjectElement>;

-    querySelectorAll(selectors: "ol"): NodeListOf<HTMLOListElement>;

-    querySelectorAll(selectors: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    querySelectorAll(selectors: "option"): NodeListOf<HTMLOptionElement>;

-    querySelectorAll(selectors: "p"): NodeListOf<HTMLParagraphElement>;

-    querySelectorAll(selectors: "param"): NodeListOf<HTMLParamElement>;

-    querySelectorAll(selectors: "path"): NodeListOf<SVGPathElement>;

-    querySelectorAll(selectors: "pattern"): NodeListOf<SVGPatternElement>;

-    querySelectorAll(selectors: "picture"): NodeListOf<HTMLPictureElement>;

-    querySelectorAll(selectors: "plaintext"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "polygon"): NodeListOf<SVGPolygonElement>;

-    querySelectorAll(selectors: "polyline"): NodeListOf<SVGPolylineElement>;

-    querySelectorAll(selectors: "pre"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "progress"): NodeListOf<HTMLProgressElement>;

-    querySelectorAll(selectors: "q"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    querySelectorAll(selectors: "rect"): NodeListOf<SVGRectElement>;

-    querySelectorAll(selectors: "rt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ruby"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "s"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "samp"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "script"): NodeListOf<HTMLScriptElement>;

-    querySelectorAll(selectors: "section"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "select"): NodeListOf<HTMLSelectElement>;

-    querySelectorAll(selectors: "small"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "source"): NodeListOf<HTMLSourceElement>;

-    querySelectorAll(selectors: "span"): NodeListOf<HTMLSpanElement>;

-    querySelectorAll(selectors: "stop"): NodeListOf<SVGStopElement>;

-    querySelectorAll(selectors: "strike"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "strong"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "style"): NodeListOf<HTMLStyleElement>;

-    querySelectorAll(selectors: "sub"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "sup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "svg"): NodeListOf<SVGSVGElement>;

-    querySelectorAll(selectors: "switch"): NodeListOf<SVGSwitchElement>;

-    querySelectorAll(selectors: "symbol"): NodeListOf<SVGSymbolElement>;

-    querySelectorAll(selectors: "table"): NodeListOf<HTMLTableElement>;

-    querySelectorAll(selectors: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "td"): NodeListOf<HTMLTableDataCellElement>;

-    querySelectorAll(selectors: "template"): NodeListOf<HTMLTemplateElement>;

-    querySelectorAll(selectors: "text"): NodeListOf<SVGTextElement>;

-    querySelectorAll(selectors: "textpath"): NodeListOf<SVGTextPathElement>;

-    querySelectorAll(selectors: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    querySelectorAll(selectors: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    querySelectorAll(selectors: "thead"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "title"): NodeListOf<HTMLTitleElement>;

-    querySelectorAll(selectors: "tr"): NodeListOf<HTMLTableRowElement>;

-    querySelectorAll(selectors: "track"): NodeListOf<HTMLTrackElement>;

-    querySelectorAll(selectors: "tspan"): NodeListOf<SVGTSpanElement>;

-    querySelectorAll(selectors: "tt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "u"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ul"): NodeListOf<HTMLUListElement>;

-    querySelectorAll(selectors: "use"): NodeListOf<SVGUseElement>;

-    querySelectorAll(selectors: "var"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "video"): NodeListOf<HTMLVideoElement>;

-    querySelectorAll(selectors: "view"): NodeListOf<SVGViewElement>;

-    querySelectorAll(selectors: "wbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    querySelectorAll(selectors: "xmp"): NodeListOf<HTMLPreElement>;

+    querySelectorAll<K extends keyof ElementListTagNameMap>(selectors: K): ElementListTagNameMap[K];

     querySelectorAll(selectors: string): NodeListOf<Element>;

 }

 

@@ -18130,21 +16881,25 @@ interface WindowTimersExtension {
     setImmediate(handler: any, ...args: any[]): number;

 }

 

+interface XMLHttpRequestEventTargetEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+    "timeout": ProgressEvent;

+}

+

 interface XMLHttpRequestEventTarget {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    ontimeout: (this: this, ev: ProgressEvent) => any;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    onabort: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onerror: (this: XMLHttpRequestEventTarget, ev: ErrorEvent) => any;

+    onload: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onloadend: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    onloadstart: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onprogress: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    ontimeout: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -18404,6 +17159,33 @@ interface ParentNode {
     readonly childElementCount: number;

 }

 

+interface DocumentOrShadowRoot {

+    readonly activeElement: Element | null;

+    readonly stylesheets: StyleSheetList;

+    getSelection(): Selection | null;

+    elementFromPoint(x: number, y: number): Element | null;

+    elementsFromPoint(x: number, y: number): Element[];

+}

+

+interface ShadowRoot extends DocumentOrShadowRoot, DocumentFragment {

+    readonly host: Element;

+    innerHTML: string;

+}

+

+interface ShadowRootInit {

+    mode: 'open'|'closed';

+    delegatesFocus?: boolean;

+}

+

+interface HTMLSlotElement extends HTMLElement {

+    name: string;

+    assignedNodes(options?: AssignedNodesOptions): Node[];

+}

+

+interface AssignedNodesOptions {

+    flatten?: boolean;

+}

+

 declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;

 

 interface ErrorEventHandler {

@@ -18451,6 +17233,447 @@ interface NavigatorUserMediaErrorCallback {
 interface ForEachCallback {

     (keyId: any, status: string): void;

 }

+interface HTMLElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "audio": HTMLAudioElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "del": HTMLModElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "embed": HTMLEmbedElement;

+    "fieldset": HTMLFieldSetElement;

+    "font": HTMLFontElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "iframe": HTMLIFrameElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "marquee": HTMLMarqueeElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "meter": HTMLMeterElement;

+    "nextid": HTMLUnknownElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "picture": HTMLPictureElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "script": HTMLScriptElement;

+    "select": HTMLSelectElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "style": HTMLStyleElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "ul": HTMLUListElement;

+    "video": HTMLVideoElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "abbr": HTMLElement;

+    "acronym": HTMLElement;

+    "address": HTMLElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "article": HTMLElement;

+    "aside": HTMLElement;

+    "audio": HTMLAudioElement;

+    "b": HTMLElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "bdo": HTMLElement;

+    "big": HTMLElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "center": HTMLElement;

+    "circle": SVGCircleElement;

+    "cite": HTMLElement;

+    "clippath": SVGClipPathElement;

+    "code": HTMLElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "dd": HTMLElement;

+    "defs": SVGDefsElement;

+    "del": HTMLModElement;

+    "desc": SVGDescElement;

+    "dfn": HTMLElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "dt": HTMLElement;

+    "ellipse": SVGEllipseElement;

+    "em": HTMLElement;

+    "embed": HTMLEmbedElement;

+    "feblend": SVGFEBlendElement;

+    "fecolormatrix": SVGFEColorMatrixElement;

+    "fecomponenttransfer": SVGFEComponentTransferElement;

+    "fecomposite": SVGFECompositeElement;

+    "feconvolvematrix": SVGFEConvolveMatrixElement;

+    "fediffuselighting": SVGFEDiffuseLightingElement;

+    "fedisplacementmap": SVGFEDisplacementMapElement;

+    "fedistantlight": SVGFEDistantLightElement;

+    "feflood": SVGFEFloodElement;

+    "fefunca": SVGFEFuncAElement;

+    "fefuncb": SVGFEFuncBElement;

+    "fefuncg": SVGFEFuncGElement;

+    "fefuncr": SVGFEFuncRElement;

+    "fegaussianblur": SVGFEGaussianBlurElement;

+    "feimage": SVGFEImageElement;

+    "femerge": SVGFEMergeElement;

+    "femergenode": SVGFEMergeNodeElement;

+    "femorphology": SVGFEMorphologyElement;

+    "feoffset": SVGFEOffsetElement;

+    "fepointlight": SVGFEPointLightElement;

+    "fespecularlighting": SVGFESpecularLightingElement;

+    "fespotlight": SVGFESpotLightElement;

+    "fetile": SVGFETileElement;

+    "feturbulence": SVGFETurbulenceElement;

+    "fieldset": HTMLFieldSetElement;

+    "figcaption": HTMLElement;

+    "figure": HTMLElement;

+    "filter": SVGFilterElement;

+    "font": HTMLFontElement;

+    "footer": HTMLElement;

+    "foreignobject": SVGForeignObjectElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "g": SVGGElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "header": HTMLElement;

+    "hgroup": HTMLElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "i": HTMLElement;

+    "iframe": HTMLIFrameElement;

+    "image": SVGImageElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "kbd": HTMLElement;

+    "keygen": HTMLElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "line": SVGLineElement;

+    "lineargradient": SVGLinearGradientElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "mark": HTMLElement;

+    "marker": SVGMarkerElement;

+    "marquee": HTMLMarqueeElement;

+    "mask": SVGMaskElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "metadata": SVGMetadataElement;

+    "meter": HTMLMeterElement;

+    "nav": HTMLElement;

+    "nextid": HTMLUnknownElement;

+    "nobr": HTMLElement;

+    "noframes": HTMLElement;

+    "noscript": HTMLElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "path": SVGPathElement;

+    "pattern": SVGPatternElement;

+    "picture": HTMLPictureElement;

+    "plaintext": HTMLElement;

+    "polygon": SVGPolygonElement;

+    "polyline": SVGPolylineElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "radialgradient": SVGRadialGradientElement;

+    "rect": SVGRectElement;

+    "rt": HTMLElement;

+    "ruby": HTMLElement;

+    "s": HTMLElement;

+    "samp": HTMLElement;

+    "script": HTMLScriptElement;

+    "section": HTMLElement;

+    "select": HTMLSelectElement;

+    "small": HTMLElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "stop": SVGStopElement;

+    "strike": HTMLElement;

+    "strong": HTMLElement;

+    "style": HTMLStyleElement;

+    "sub": HTMLElement;

+    "sup": HTMLElement;

+    "svg": SVGSVGElement;

+    "switch": SVGSwitchElement;

+    "symbol": SVGSymbolElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "text": SVGTextElement;

+    "textpath": SVGTextPathElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "tspan": SVGTSpanElement;

+    "tt": HTMLElement;

+    "u": HTMLElement;

+    "ul": HTMLUListElement;

+    "use": SVGUseElement;

+    "var": HTMLElement;

+    "video": HTMLVideoElement;

+    "view": SVGViewElement;

+    "wbr": HTMLElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementListTagNameMap {

+    "a": NodeListOf<HTMLAnchorElement>;

+    "abbr": NodeListOf<HTMLElement>;

+    "acronym": NodeListOf<HTMLElement>;

+    "address": NodeListOf<HTMLElement>;

+    "applet": NodeListOf<HTMLAppletElement>;

+    "area": NodeListOf<HTMLAreaElement>;

+    "article": NodeListOf<HTMLElement>;

+    "aside": NodeListOf<HTMLElement>;

+    "audio": NodeListOf<HTMLAudioElement>;

+    "b": NodeListOf<HTMLElement>;

+    "base": NodeListOf<HTMLBaseElement>;

+    "basefont": NodeListOf<HTMLBaseFontElement>;

+    "bdo": NodeListOf<HTMLElement>;

+    "big": NodeListOf<HTMLElement>;

+    "blockquote": NodeListOf<HTMLQuoteElement>;

+    "body": NodeListOf<HTMLBodyElement>;

+    "br": NodeListOf<HTMLBRElement>;

+    "button": NodeListOf<HTMLButtonElement>;

+    "canvas": NodeListOf<HTMLCanvasElement>;

+    "caption": NodeListOf<HTMLTableCaptionElement>;

+    "center": NodeListOf<HTMLElement>;

+    "circle": NodeListOf<SVGCircleElement>;

+    "cite": NodeListOf<HTMLElement>;

+    "clippath": NodeListOf<SVGClipPathElement>;

+    "code": NodeListOf<HTMLElement>;

+    "col": NodeListOf<HTMLTableColElement>;

+    "colgroup": NodeListOf<HTMLTableColElement>;

+    "datalist": NodeListOf<HTMLDataListElement>;

+    "dd": NodeListOf<HTMLElement>;

+    "defs": NodeListOf<SVGDefsElement>;

+    "del": NodeListOf<HTMLModElement>;

+    "desc": NodeListOf<SVGDescElement>;

+    "dfn": NodeListOf<HTMLElement>;

+    "dir": NodeListOf<HTMLDirectoryElement>;

+    "div": NodeListOf<HTMLDivElement>;

+    "dl": NodeListOf<HTMLDListElement>;

+    "dt": NodeListOf<HTMLElement>;

+    "ellipse": NodeListOf<SVGEllipseElement>;

+    "em": NodeListOf<HTMLElement>;

+    "embed": NodeListOf<HTMLEmbedElement>;

+    "feblend": NodeListOf<SVGFEBlendElement>;

+    "fecolormatrix": NodeListOf<SVGFEColorMatrixElement>;

+    "fecomponenttransfer": NodeListOf<SVGFEComponentTransferElement>;

+    "fecomposite": NodeListOf<SVGFECompositeElement>;

+    "feconvolvematrix": NodeListOf<SVGFEConvolveMatrixElement>;

+    "fediffuselighting": NodeListOf<SVGFEDiffuseLightingElement>;

+    "fedisplacementmap": NodeListOf<SVGFEDisplacementMapElement>;

+    "fedistantlight": NodeListOf<SVGFEDistantLightElement>;

+    "feflood": NodeListOf<SVGFEFloodElement>;

+    "fefunca": NodeListOf<SVGFEFuncAElement>;

+    "fefuncb": NodeListOf<SVGFEFuncBElement>;

+    "fefuncg": NodeListOf<SVGFEFuncGElement>;

+    "fefuncr": NodeListOf<SVGFEFuncRElement>;

+    "fegaussianblur": NodeListOf<SVGFEGaussianBlurElement>;

+    "feimage": NodeListOf<SVGFEImageElement>;

+    "femerge": NodeListOf<SVGFEMergeElement>;

+    "femergenode": NodeListOf<SVGFEMergeNodeElement>;

+    "femorphology": NodeListOf<SVGFEMorphologyElement>;

+    "feoffset": NodeListOf<SVGFEOffsetElement>;

+    "fepointlight": NodeListOf<SVGFEPointLightElement>;

+    "fespecularlighting": NodeListOf<SVGFESpecularLightingElement>;

+    "fespotlight": NodeListOf<SVGFESpotLightElement>;

+    "fetile": NodeListOf<SVGFETileElement>;

+    "feturbulence": NodeListOf<SVGFETurbulenceElement>;

+    "fieldset": NodeListOf<HTMLFieldSetElement>;

+    "figcaption": NodeListOf<HTMLElement>;

+    "figure": NodeListOf<HTMLElement>;

+    "filter": NodeListOf<SVGFilterElement>;

+    "font": NodeListOf<HTMLFontElement>;

+    "footer": NodeListOf<HTMLElement>;

+    "foreignobject": NodeListOf<SVGForeignObjectElement>;

+    "form": NodeListOf<HTMLFormElement>;

+    "frame": NodeListOf<HTMLFrameElement>;

+    "frameset": NodeListOf<HTMLFrameSetElement>;

+    "g": NodeListOf<SVGGElement>;

+    "h1": NodeListOf<HTMLHeadingElement>;

+    "h2": NodeListOf<HTMLHeadingElement>;

+    "h3": NodeListOf<HTMLHeadingElement>;

+    "h4": NodeListOf<HTMLHeadingElement>;

+    "h5": NodeListOf<HTMLHeadingElement>;

+    "h6": NodeListOf<HTMLHeadingElement>;

+    "head": NodeListOf<HTMLHeadElement>;

+    "header": NodeListOf<HTMLElement>;

+    "hgroup": NodeListOf<HTMLElement>;

+    "hr": NodeListOf<HTMLHRElement>;

+    "html": NodeListOf<HTMLHtmlElement>;

+    "i": NodeListOf<HTMLElement>;

+    "iframe": NodeListOf<HTMLIFrameElement>;

+    "image": NodeListOf<SVGImageElement>;

+    "img": NodeListOf<HTMLImageElement>;

+    "input": NodeListOf<HTMLInputElement>;

+    "ins": NodeListOf<HTMLModElement>;

+    "isindex": NodeListOf<HTMLUnknownElement>;

+    "kbd": NodeListOf<HTMLElement>;

+    "keygen": NodeListOf<HTMLElement>;

+    "label": NodeListOf<HTMLLabelElement>;

+    "legend": NodeListOf<HTMLLegendElement>;

+    "li": NodeListOf<HTMLLIElement>;

+    "line": NodeListOf<SVGLineElement>;

+    "lineargradient": NodeListOf<SVGLinearGradientElement>;

+    "link": NodeListOf<HTMLLinkElement>;

+    "listing": NodeListOf<HTMLPreElement>;

+    "map": NodeListOf<HTMLMapElement>;

+    "mark": NodeListOf<HTMLElement>;

+    "marker": NodeListOf<SVGMarkerElement>;

+    "marquee": NodeListOf<HTMLMarqueeElement>;

+    "mask": NodeListOf<SVGMaskElement>;

+    "menu": NodeListOf<HTMLMenuElement>;

+    "meta": NodeListOf<HTMLMetaElement>;

+    "metadata": NodeListOf<SVGMetadataElement>;

+    "meter": NodeListOf<HTMLMeterElement>;

+    "nav": NodeListOf<HTMLElement>;

+    "nextid": NodeListOf<HTMLUnknownElement>;

+    "nobr": NodeListOf<HTMLElement>;

+    "noframes": NodeListOf<HTMLElement>;

+    "noscript": NodeListOf<HTMLElement>;

+    "object": NodeListOf<HTMLObjectElement>;

+    "ol": NodeListOf<HTMLOListElement>;

+    "optgroup": NodeListOf<HTMLOptGroupElement>;

+    "option": NodeListOf<HTMLOptionElement>;

+    "p": NodeListOf<HTMLParagraphElement>;

+    "param": NodeListOf<HTMLParamElement>;

+    "path": NodeListOf<SVGPathElement>;

+    "pattern": NodeListOf<SVGPatternElement>;

+    "picture": NodeListOf<HTMLPictureElement>;

+    "plaintext": NodeListOf<HTMLElement>;

+    "polygon": NodeListOf<SVGPolygonElement>;

+    "polyline": NodeListOf<SVGPolylineElement>;

+    "pre": NodeListOf<HTMLPreElement>;

+    "progress": NodeListOf<HTMLProgressElement>;

+    "q": NodeListOf<HTMLQuoteElement>;

+    "radialgradient": NodeListOf<SVGRadialGradientElement>;

+    "rect": NodeListOf<SVGRectElement>;

+    "rt": NodeListOf<HTMLElement>;

+    "ruby": NodeListOf<HTMLElement>;

+    "s": NodeListOf<HTMLElement>;

+    "samp": NodeListOf<HTMLElement>;

+    "script": NodeListOf<HTMLScriptElement>;

+    "section": NodeListOf<HTMLElement>;

+    "select": NodeListOf<HTMLSelectElement>;

+    "small": NodeListOf<HTMLElement>;

+    "source": NodeListOf<HTMLSourceElement>;

+    "span": NodeListOf<HTMLSpanElement>;

+    "stop": NodeListOf<SVGStopElement>;

+    "strike": NodeListOf<HTMLElement>;

+    "strong": NodeListOf<HTMLElement>;

+    "style": NodeListOf<HTMLStyleElement>;

+    "sub": NodeListOf<HTMLElement>;

+    "sup": NodeListOf<HTMLElement>;

+    "svg": NodeListOf<SVGSVGElement>;

+    "switch": NodeListOf<SVGSwitchElement>;

+    "symbol": NodeListOf<SVGSymbolElement>;

+    "table": NodeListOf<HTMLTableElement>;

+    "tbody": NodeListOf<HTMLTableSectionElement>;

+    "td": NodeListOf<HTMLTableDataCellElement>;

+    "template": NodeListOf<HTMLTemplateElement>;

+    "text": NodeListOf<SVGTextElement>;

+    "textpath": NodeListOf<SVGTextPathElement>;

+    "textarea": NodeListOf<HTMLTextAreaElement>;

+    "tfoot": NodeListOf<HTMLTableSectionElement>;

+    "th": NodeListOf<HTMLTableHeaderCellElement>;

+    "thead": NodeListOf<HTMLTableSectionElement>;

+    "title": NodeListOf<HTMLTitleElement>;

+    "tr": NodeListOf<HTMLTableRowElement>;

+    "track": NodeListOf<HTMLTrackElement>;

+    "tspan": NodeListOf<SVGTSpanElement>;

+    "tt": NodeListOf<HTMLElement>;

+    "u": NodeListOf<HTMLElement>;

+    "ul": NodeListOf<HTMLUListElement>;

+    "use": NodeListOf<SVGUseElement>;

+    "var": NodeListOf<HTMLElement>;

+    "video": NodeListOf<HTMLVideoElement>;

+    "view": NodeListOf<SVGViewElement>;

+    "wbr": NodeListOf<HTMLElement>;

+    "x-ms-webview": NodeListOf<MSHTMLWebViewElement>;

+    "xmp": NodeListOf<HTMLPreElement>;

+}

+

 declare var Audio: {new(src?: string): HTMLAudioElement; };

 declare var Image: {new(width?: number, height?: number): HTMLImageElement; };

 declare var Option: {new(text?: string, value?: string, defaultSelected?: boolean, selected?: boolean): HTMLOptionElement; };

@@ -18625,7 +17848,6 @@ declare function scroll(options?: ScrollToOptions): void;
 declare function scrollTo(options?: ScrollToOptions): void;

 declare function scrollBy(options?: ScrollToOptions): void;

 declare function toString(): string;

-declare function addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function dispatchEvent(evt: Event): boolean;

 declare function removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function clearInterval(handle: number): void;

@@ -18652,101 +17874,7 @@ declare var onwheel: (this: Window, ev: WheelEvent) => any;
 declare var indexedDB: IDBFactory;

 declare function atob(encodedString: string): string;

 declare function btoa(rawString: string): string;

-declare function addEventListener(type: "MSGestureChange", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureDoubleTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureEnd", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureHold", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSInertiaStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerCancel", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerDown", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerEnter", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerLeave", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerMove", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOut", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOver", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerUp", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "abort", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "afterprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeunload", listener: (this: Window, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "blur", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplay", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplaythrough", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "change", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "click", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "compassneedscalibration", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "contextmenu", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dblclick", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicelight", listener: (this: Window, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicemotion", listener: (this: Window, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "deviceorientation", listener: (this: Window, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drag", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragend", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragenter", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragleave", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragover", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragstart", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drop", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "durationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "emptied", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ended", listener: (this: Window, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "focus", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "hashchange", listener: (this: Window, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "input", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "invalid", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keydown", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keypress", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keyup", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "load", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadeddata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadedmetadata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadstart", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "message", listener: (this: Window, ev: MessageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousedown", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseenter", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseleave", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousemove", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseout", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseover", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseup", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousewheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "offline", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "online", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "orientationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pagehide", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pageshow", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pause", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "play", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "playing", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointercancel", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerdown", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerenter", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerleave", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointermove", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerout", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerover", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerup", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "popstate", listener: (this: Window, ev: PopStateEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "progress", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ratechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "readystatechange", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "reset", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "resize", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "scroll", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeked", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeking", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "select", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "stalled", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "storage", listener: (this: Window, ev: StorageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "submit", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "suspend", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "timeupdate", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "unload", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "volumechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "waiting", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "wheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

+declare function addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

 declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 type AAGUID = string;

 type AlgorithmIdentifier = string | Algorithm;

diff --git a/node_modules/typescript/lib/lib.dom.d.ts b/node_modules/typescript/lib/lib.dom.d.ts
index 217c7bf64..8fb1b0b0a 100644
--- a/node_modules/typescript/lib/lib.dom.d.ts
+++ b/node_modules/typescript/lib/lib.dom.d.ts
@@ -96,6 +96,7 @@ interface DoubleRange {
 }

 

 interface EventInit {

+    scoped?: boolean;

     bubbles?: boolean;

     cancelable?: boolean;

 }

@@ -937,15 +938,26 @@ declare var AnimationEvent: {
     new(): AnimationEvent;

 }

 

+interface ApplicationCacheEventMap {

+    "cached": Event;

+    "checking": Event;

+    "downloading": Event;

+    "error": ErrorEvent;

+    "noupdate": Event;

+    "obsolete": Event;

+    "progress": ProgressEvent;

+    "updateready": Event;

+}

+

 interface ApplicationCache extends EventTarget {

-    oncached: (this: this, ev: Event) => any;

-    onchecking: (this: this, ev: Event) => any;

-    ondownloading: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onnoupdate: (this: this, ev: Event) => any;

-    onobsolete: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onupdateready: (this: this, ev: Event) => any;

+    oncached: (this: ApplicationCache, ev: Event) => any;

+    onchecking: (this: ApplicationCache, ev: Event) => any;

+    ondownloading: (this: ApplicationCache, ev: Event) => any;

+    onerror: (this: ApplicationCache, ev: ErrorEvent) => any;

+    onnoupdate: (this: ApplicationCache, ev: Event) => any;

+    onobsolete: (this: ApplicationCache, ev: Event) => any;

+    onprogress: (this: ApplicationCache, ev: ProgressEvent) => any;

+    onupdateready: (this: ApplicationCache, ev: Event) => any;

     readonly status: number;

     abort(): void;

     swapCache(): void;

@@ -956,14 +968,7 @@ interface ApplicationCache extends EventTarget {
     readonly OBSOLETE: number;

     readonly UNCACHED: number;

     readonly UPDATEREADY: number;

-    addEventListener(type: "cached", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "checking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "downloading", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "noupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "obsolete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "updateready", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ApplicationCacheEventMap>(type: K, listener: (this: ApplicationCache, ev: ApplicationCacheEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -1016,17 +1021,21 @@ declare var AudioBuffer: {
     new(): AudioBuffer;

 }

 

+interface AudioBufferSourceNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface AudioBufferSourceNode extends AudioNode {

     buffer: AudioBuffer | null;

     readonly detune: AudioParam;

     loop: boolean;

     loopEnd: number;

     loopStart: number;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: AudioBufferSourceNode, ev: MediaStreamErrorEvent) => any;

     readonly playbackRate: AudioParam;

     start(when?: number, offset?: number, duration?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioBufferSourceNodeEventMap>(type: K, listener: (this: AudioBufferSourceNode, ev: AudioBufferSourceNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -1148,16 +1157,20 @@ declare var AudioTrack: {
     new(): AudioTrack;

 }

 

+interface AudioTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface AudioTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: AudioTrackList, ev: TrackEvent) => any;

+    onchange: (this: AudioTrackList, ev: Event) => any;

+    onremovetrack: (this: AudioTrackList, ev: TrackEvent) => any;

     getTrackById(id: string): AudioTrack | null;

     item(index: number): AudioTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioTrackListEventMap>(type: K, listener: (this: AudioTrackList, ev: AudioTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: AudioTrack;

 }

@@ -1858,7 +1871,6 @@ interface CharacterData extends Node, ChildNode {
     insertData(offset: number, arg: string): void;

     replaceData(offset: number, count: number, arg: string): void;

     substringData(offset: number, count: number): string;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var CharacterData: {

@@ -2183,6 +2195,8 @@ declare var DOMTokenList: {
 

 interface DataCue extends TextTrackCue {

     data: ArrayBuffer;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DataCue: {

@@ -2311,7 +2325,98 @@ declare var DeviceRotationRate: {
     new(): DeviceRotationRate;

 }

 

-interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode {

+interface DocumentEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforedeactivate": UIEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "fullscreenchange": Event;

+    "fullscreenerror": Event;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "mssitemodejumplistitemremoved": MSSiteModeEvent;

+    "msthumbnailclick": MSSiteModeEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "pointerlockchange": Event;

+    "pointerlockerror": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectionchange": Event;

+    "selectstart": Event;

+    "stalled": Event;

+    "stop": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "volumechange": Event;

+    "waiting": Event;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

+interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode, DocumentOrShadowRoot {

     /**

       * Sets or gets the URL for the current document. 

       */

@@ -2434,294 +2539,294 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Fires when the user aborts the download.

       * @param ev The event.

       */

-    onabort: (this: this, ev: UIEvent) => any;

+    onabort: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the object is set as the active element.

       * @param ev The event.

       */

-    onactivate: (this: this, ev: UIEvent) => any;

+    onactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the object is set as the active element.

       * @param ev The event.

       */

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

+    onbeforeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the activeElement is changed from the current object to another object in the parent document.

       * @param ev The event.

       */

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

+    onbeforedeactivate: (this: Document, ev: UIEvent) => any;

     /** 

       * Fires when the object loses the input focus. 

       * @param ev The focus event.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

+    onblur: (this: Document, ev: FocusEvent) => any;

     /**

       * Occurs when playback is possible, but would require further buffering. 

       * @param ev The event.

       */

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

+    oncanplay: (this: Document, ev: Event) => any;

+    oncanplaythrough: (this: Document, ev: Event) => any;

     /**

       * Fires when the contents of the object or selection have changed. 

       * @param ev The event.

       */

-    onchange: (this: this, ev: Event) => any;

+    onchange: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the left mouse button on the object

       * @param ev The mouse event.

       */

-    onclick: (this: this, ev: MouseEvent) => any;

+    onclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user clicks the right mouse button in the client area, opening the context menu. 

       * @param ev The mouse event.

       */

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

+    oncontextmenu: (this: Document, ev: PointerEvent) => any;

     /**

       * Fires when the user double-clicks the object.

       * @param ev The mouse event.

       */

-    ondblclick: (this: this, ev: MouseEvent) => any;

+    ondblclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the activeElement is changed from the current object to another object in the parent document.

       * @param ev The UI Event

       */

-    ondeactivate: (this: this, ev: UIEvent) => any;

+    ondeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires on the source object continuously during a drag operation.

       * @param ev The event.

       */

-    ondrag: (this: this, ev: DragEvent) => any;

+    ondrag: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user releases the mouse at the close of a drag operation.

       * @param ev The event.

       */

-    ondragend: (this: this, ev: DragEvent) => any;

+    ondragend: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target element when the user drags the object to a valid drop target.

       * @param ev The drag event.

       */

-    ondragenter: (this: this, ev: DragEvent) => any;

+    ondragenter: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.

       * @param ev The drag event.

       */

-    ondragleave: (this: this, ev: DragEvent) => any;

+    ondragleave: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the target element continuously while the user drags the object over a valid drop target.

       * @param ev The event.

       */

-    ondragover: (this: this, ev: DragEvent) => any;

+    ondragover: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user starts to drag a text selection or selected object. 

       * @param ev The event.

       */

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

+    ondragstart: (this: Document, ev: DragEvent) => any;

+    ondrop: (this: Document, ev: DragEvent) => any;

     /**

       * Occurs when the duration attribute is updated. 

       * @param ev The event.

       */

-    ondurationchange: (this: this, ev: Event) => any;

+    ondurationchange: (this: Document, ev: Event) => any;

     /**

       * Occurs when the media element is reset to its initial state. 

       * @param ev The event.

       */

-    onemptied: (this: this, ev: Event) => any;

+    onemptied: (this: Document, ev: Event) => any;

     /**

       * Occurs when the end of playback is reached. 

       * @param ev The event

       */

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: Document, ev: MediaStreamErrorEvent) => any;

     /**

       * Fires when an error occurs during object loading.

       * @param ev The event.

       */

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onerror: (this: Document, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus. 

       * @param ev The event.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onfullscreenchange: (this: this, ev: Event) => any;

-    onfullscreenerror: (this: this, ev: Event) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

+    onfocus: (this: Document, ev: FocusEvent) => any;

+    onfullscreenchange: (this: Document, ev: Event) => any;

+    onfullscreenerror: (this: Document, ev: Event) => any;

+    oninput: (this: Document, ev: Event) => any;

+    oninvalid: (this: Document, ev: Event) => any;

     /**

       * Fires when the user presses a key.

       * @param ev The keyboard event

       */

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

+    onkeydown: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user presses an alphanumeric key.

       * @param ev The event.

       */

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

+    onkeypress: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user releases a key.

       * @param ev The keyboard event

       */

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

+    onkeyup: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires immediately after the browser loads the object. 

       * @param ev The event.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: Document, ev: Event) => any;

     /**

       * Occurs when media data is loaded at the current playback position. 

       * @param ev The event.

       */

-    onloadeddata: (this: this, ev: Event) => any;

+    onloadeddata: (this: Document, ev: Event) => any;

     /**

       * Occurs when the duration and dimensions of the media have been determined.

       * @param ev The event.

       */

-    onloadedmetadata: (this: this, ev: Event) => any;

+    onloadedmetadata: (this: Document, ev: Event) => any;

     /**

       * Occurs when Internet Explorer begins looking for media data. 

       * @param ev The event.

       */

-    onloadstart: (this: this, ev: Event) => any;

+    onloadstart: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the object with either mouse button. 

       * @param ev The mouse event.

       */

-    onmousedown: (this: this, ev: MouseEvent) => any;

+    onmousedown: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse over the object. 

       * @param ev The mouse event.

       */

-    onmousemove: (this: this, ev: MouseEvent) => any;

+    onmousemove: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer outside the boundaries of the object. 

       * @param ev The mouse event.

       */

-    onmouseout: (this: this, ev: MouseEvent) => any;

+    onmouseout: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer into the object.

       * @param ev The mouse event.

       */

-    onmouseover: (this: this, ev: MouseEvent) => any;

+    onmouseover: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user releases a mouse button while the mouse is over the object. 

       * @param ev The mouse event.

       */

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onmouseup: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the wheel button is rotated. 

       * @param ev The mouse event

       */

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onmousewheel: (this: Document, ev: WheelEvent) => any;

+    onmscontentzoom: (this: Document, ev: UIEvent) => any;

+    onmsgesturechange: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Document, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Document, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Document, ev: MSGestureEvent) => any;

+    onmsmanipulationstatechanged: (this: Document, ev: MSManipulationEvent) => any;

+    onmspointercancel: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Document, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Document, ev: MSPointerEvent) => any;

     /**

       * Occurs when an item is removed from a Jump List of a webpage running in Site Mode. 

       * @param ev The event.

       */

-    onmssitemodejumplistitemremoved: (this: this, ev: MSSiteModeEvent) => any;

+    onmssitemodejumplistitemremoved: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when a user clicks a button in a Thumbnail Toolbar of a webpage running in Site Mode.

       * @param ev The event.

       */

-    onmsthumbnailclick: (this: this, ev: MSSiteModeEvent) => any;

+    onmsthumbnailclick: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when playback is paused.

       * @param ev The event.

       */

-    onpause: (this: this, ev: Event) => any;

+    onpause: (this: Document, ev: Event) => any;

     /**

       * Occurs when the play method is requested. 

       * @param ev The event.

       */

-    onplay: (this: this, ev: Event) => any;

+    onplay: (this: Document, ev: Event) => any;

     /**

       * Occurs when the audio or video has started playing. 

       * @param ev The event.

       */

-    onplaying: (this: this, ev: Event) => any;

-    onpointerlockchange: (this: this, ev: Event) => any;

-    onpointerlockerror: (this: this, ev: Event) => any;

+    onplaying: (this: Document, ev: Event) => any;

+    onpointerlockchange: (this: Document, ev: Event) => any;

+    onpointerlockerror: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate progress while downloading media data. 

       * @param ev The event.

       */

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onprogress: (this: Document, ev: ProgressEvent) => any;

     /**

       * Occurs when the playback rate is increased or decreased. 

       * @param ev The event.

       */

-    onratechange: (this: this, ev: Event) => any;

+    onratechange: (this: Document, ev: Event) => any;

     /**

       * Fires when the state of the object has changed.

       * @param ev The event

       */

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

+    onreadystatechange: (this: Document, ev: ProgressEvent) => any;

     /**

       * Fires when the user resets a form. 

       * @param ev The event.

       */

-    onreset: (this: this, ev: Event) => any;

+    onreset: (this: Document, ev: Event) => any;

     /**

       * Fires when the user repositions the scroll box in the scroll bar on the object. 

       * @param ev The event.

       */

-    onscroll: (this: this, ev: UIEvent) => any;

+    onscroll: (this: Document, ev: UIEvent) => any;

     /**

       * Occurs when the seek operation ends. 

       * @param ev The event.

       */

-    onseeked: (this: this, ev: Event) => any;

+    onseeked: (this: Document, ev: Event) => any;

     /**

       * Occurs when the current playback position is moved. 

       * @param ev The event.

       */

-    onseeking: (this: this, ev: Event) => any;

+    onseeking: (this: Document, ev: Event) => any;

     /**

       * Fires when the current selection changes.

       * @param ev The event.

       */

-    onselect: (this: this, ev: UIEvent) => any;

+    onselect: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the selection state of a document changes.

       * @param ev The event.

       */

-    onselectionchange: (this: this, ev: Event) => any;

-    onselectstart: (this: this, ev: Event) => any;

+    onselectionchange: (this: Document, ev: Event) => any;

+    onselectstart: (this: Document, ev: Event) => any;

     /**

       * Occurs when the download has stopped. 

       * @param ev The event.

       */

-    onstalled: (this: this, ev: Event) => any;

+    onstalled: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the Stop button or leaves the Web page.

       * @param ev The event.

       */

-    onstop: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

+    onstop: (this: Document, ev: Event) => any;

+    onsubmit: (this: Document, ev: Event) => any;

     /**

       * Occurs if the load operation has been intentionally halted. 

       * @param ev The event.

       */

-    onsuspend: (this: this, ev: Event) => any;

+    onsuspend: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate the current playback position.

       * @param ev The event.

       */

-    ontimeupdate: (this: this, ev: Event) => any;

+    ontimeupdate: (this: Document, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

@@ -2730,14 +2835,14 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Occurs when the volume is changed, or playback is muted or unmuted.

       * @param ev The event.

       */

-    onvolumechange: (this: this, ev: Event) => any;

+    onvolumechange: (this: Document, ev: Event) => any;

     /**

       * Occurs when playback stops because the next frame of a video resource is not available. 

       * @param ev The event.

       */

-    onwaiting: (this: this, ev: Event) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwaiting: (this: Document, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Document, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Document, ev: Event) => any;

     plugins: HTMLCollectionOf<HTMLEmbedElement>;

     readonly pointerLockElement: Element;

     /**

@@ -2808,86 +2913,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Creates an instance of the element for the specified tag.

       * @param tagName The name of an element.

       */

-    createElement(tagName: "a"): HTMLAnchorElement;

-    createElement(tagName: "applet"): HTMLAppletElement;

-    createElement(tagName: "area"): HTMLAreaElement;

-    createElement(tagName: "audio"): HTMLAudioElement;

-    createElement(tagName: "base"): HTMLBaseElement;

-    createElement(tagName: "basefont"): HTMLBaseFontElement;

-    createElement(tagName: "blockquote"): HTMLQuoteElement;

-    createElement(tagName: "body"): HTMLBodyElement;

-    createElement(tagName: "br"): HTMLBRElement;

-    createElement(tagName: "button"): HTMLButtonElement;

-    createElement(tagName: "canvas"): HTMLCanvasElement;

-    createElement(tagName: "caption"): HTMLTableCaptionElement;

-    createElement(tagName: "col"): HTMLTableColElement;

-    createElement(tagName: "colgroup"): HTMLTableColElement;

-    createElement(tagName: "datalist"): HTMLDataListElement;

-    createElement(tagName: "del"): HTMLModElement;

-    createElement(tagName: "dir"): HTMLDirectoryElement;

-    createElement(tagName: "div"): HTMLDivElement;

-    createElement(tagName: "dl"): HTMLDListElement;

-    createElement(tagName: "embed"): HTMLEmbedElement;

-    createElement(tagName: "fieldset"): HTMLFieldSetElement;

-    createElement(tagName: "font"): HTMLFontElement;

-    createElement(tagName: "form"): HTMLFormElement;

-    createElement(tagName: "frame"): HTMLFrameElement;

-    createElement(tagName: "frameset"): HTMLFrameSetElement;

-    createElement(tagName: "h1"): HTMLHeadingElement;

-    createElement(tagName: "h2"): HTMLHeadingElement;

-    createElement(tagName: "h3"): HTMLHeadingElement;

-    createElement(tagName: "h4"): HTMLHeadingElement;

-    createElement(tagName: "h5"): HTMLHeadingElement;

-    createElement(tagName: "h6"): HTMLHeadingElement;

-    createElement(tagName: "head"): HTMLHeadElement;

-    createElement(tagName: "hr"): HTMLHRElement;

-    createElement(tagName: "html"): HTMLHtmlElement;

-    createElement(tagName: "iframe"): HTMLIFrameElement;

-    createElement(tagName: "img"): HTMLImageElement;

-    createElement(tagName: "input"): HTMLInputElement;

-    createElement(tagName: "ins"): HTMLModElement;

-    createElement(tagName: "isindex"): HTMLUnknownElement;

-    createElement(tagName: "label"): HTMLLabelElement;

-    createElement(tagName: "legend"): HTMLLegendElement;

-    createElement(tagName: "li"): HTMLLIElement;

-    createElement(tagName: "link"): HTMLLinkElement;

-    createElement(tagName: "listing"): HTMLPreElement;

-    createElement(tagName: "map"): HTMLMapElement;

-    createElement(tagName: "marquee"): HTMLMarqueeElement;

-    createElement(tagName: "menu"): HTMLMenuElement;

-    createElement(tagName: "meta"): HTMLMetaElement;

-    createElement(tagName: "meter"): HTMLMeterElement;

-    createElement(tagName: "nextid"): HTMLUnknownElement;

-    createElement(tagName: "object"): HTMLObjectElement;

-    createElement(tagName: "ol"): HTMLOListElement;

-    createElement(tagName: "optgroup"): HTMLOptGroupElement;

-    createElement(tagName: "option"): HTMLOptionElement;

-    createElement(tagName: "p"): HTMLParagraphElement;

-    createElement(tagName: "param"): HTMLParamElement;

-    createElement(tagName: "picture"): HTMLPictureElement;

-    createElement(tagName: "pre"): HTMLPreElement;

-    createElement(tagName: "progress"): HTMLProgressElement;

-    createElement(tagName: "q"): HTMLQuoteElement;

-    createElement(tagName: "script"): HTMLScriptElement;

-    createElement(tagName: "select"): HTMLSelectElement;

-    createElement(tagName: "source"): HTMLSourceElement;

-    createElement(tagName: "span"): HTMLSpanElement;

-    createElement(tagName: "style"): HTMLStyleElement;

-    createElement(tagName: "table"): HTMLTableElement;

-    createElement(tagName: "tbody"): HTMLTableSectionElement;

-    createElement(tagName: "td"): HTMLTableDataCellElement;

-    createElement(tagName: "template"): HTMLTemplateElement;

-    createElement(tagName: "textarea"): HTMLTextAreaElement;

-    createElement(tagName: "tfoot"): HTMLTableSectionElement;

-    createElement(tagName: "th"): HTMLTableHeaderCellElement;

-    createElement(tagName: "thead"): HTMLTableSectionElement;

-    createElement(tagName: "title"): HTMLTitleElement;

-    createElement(tagName: "tr"): HTMLTableRowElement;

-    createElement(tagName: "track"): HTMLTrackElement;

-    createElement(tagName: "ul"): HTMLUListElement;

-    createElement(tagName: "video"): HTMLVideoElement;

-    createElement(tagName: "x-ms-webview"): MSHTMLWebViewElement;

-    createElement(tagName: "xmp"): HTMLPreElement;

+    createElement<K extends keyof HTMLElementTagNameMap>(tagName: K): HTMLElementTagNameMap[K];

     createElement(tagName: string): HTMLElement;

     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement

     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "a"): SVGAElement

@@ -2989,7 +3015,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param y The y-offset

       */

     elementFromPoint(x: number, y: number): Element;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

     /**

       * Executes a command on the current document, current selection, or the given range.

       * @param commandId String that specifies the command to execute. This command can be any of the command identifiers that can be executed in script.

@@ -3023,182 +3049,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Retrieves a collection of objects based on the specified element name.

       * @param name Specifies the name of an element.

       */

-    getElementsByTagName(tagname: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(tagname: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(tagname: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(tagname: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(tagname: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(tagname: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(tagname: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(tagname: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(tagname: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(tagname: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(tagname: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(tagname: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(tagname: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(tagname: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(tagname: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(tagname: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(tagname: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(tagname: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(tagname: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(tagname: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(tagname: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(tagname: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(tagname: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(tagname: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(tagname: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(tagname: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(tagname: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(tagname: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(tagname: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(tagname: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(tagname: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(tagname: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(tagname: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(tagname: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(tagname: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(tagname: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(tagname: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(tagname: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(tagname: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(tagname: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(tagname: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(tagname: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(tagname: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(tagname: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(tagname: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(tagname: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(tagname: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(tagname: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(tagname: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(tagname: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(tagname: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(tagname: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(tagname: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(tagname: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(tagname: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(tagname: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(tagname: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(tagname: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(tagname: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(tagname: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(tagname: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(tagname: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(tagname: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(tagname: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(tagname: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(tagname: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(tagname: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(tagname: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(tagname: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(tagname: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(tagname: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(tagname: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(tagname: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(tagname: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(tagname: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(tagname: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(tagname: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(tagname: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(tagname: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(tagname: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(tagname: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(tagname: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(tagname: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(tagname: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(tagname: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(tagname: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(tagname: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(tagname: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(tagname: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(tagname: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(tagname: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(tagname: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(tagname: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(tagname: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(tagname: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(tagname: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(tagname: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(tagname: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(tagname: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(tagname: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(tagname: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(tagname: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(tagname: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(tagname: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(tagname: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(tagname: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(tagname: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(tagname: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(tagname: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(tagname: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(tagname: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(tagname: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(tagname: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(tagname: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(tagname: K): ElementListTagNameMap[K];

     getElementsByTagName(tagname: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -3269,103 +3120,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param content The text and HTML tags to write.

       */

     writeln(...content: string[]): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mssitemodejumplistitemremoved", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msthumbnailclick", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectionchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stop", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -3375,7 +3130,6 @@ declare var Document: {
 }

 

 interface DocumentFragment extends Node, NodeSelector, ParentNode {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentFragment: {

@@ -3390,7 +3144,6 @@ interface DocumentType extends Node, ChildNode {
     readonly notations: NamedNodeMap;

     readonly publicId: string | null;

     readonly systemId: string | null;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentType: {

@@ -3443,6 +3196,36 @@ declare var EXT_texture_filter_anisotropic: {
     readonly TEXTURE_MAX_ANISOTROPY_EXT: number;

 }

 

+interface ElementEventMap extends GlobalEventHandlersEventMap {

+    "ariarequest": AriaRequestEvent;

+    "command": CommandEvent;

+    "gotpointercapture": PointerEvent;

+    "lostpointercapture": PointerEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSGotPointerCapture": MSPointerEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSLostPointerCapture": MSPointerEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

 interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelector, ChildNode, ParentNode {

     readonly classList: DOMTokenList;

     className: string;

@@ -3453,33 +3236,33 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     id: string;

     msContentZoomFactor: number;

     readonly msRegionOverflow: string;

-    onariarequest: (this: this, ev: AriaRequestEvent) => any;

-    oncommand: (this: this, ev: CommandEvent) => any;

-    ongotpointercapture: (this: this, ev: PointerEvent) => any;

-    onlostpointercapture: (this: this, ev: PointerEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsgotpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmslostpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onariarequest: (this: Element, ev: AriaRequestEvent) => any;

+    oncommand: (this: Element, ev: CommandEvent) => any;

+    ongotpointercapture: (this: Element, ev: PointerEvent) => any;

+    onlostpointercapture: (this: Element, ev: PointerEvent) => any;

+    onmsgesturechange: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgotpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmsinertiastart: (this: Element, ev: MSGestureEvent) => any;

+    onmslostpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmspointercancel: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Element, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Element, ev: MSPointerEvent) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Element, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Element, ev: Event) => any;

     readonly prefix: string | null;

     readonly scrollHeight: number;

     scrollLeft: number;

@@ -3487,188 +3270,16 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     readonly scrollWidth: number;

     readonly tagName: string;

     innerHTML: string;

+    readonly assignedSlot: HTMLSlotElement | null;

+    slot: string;

+    readonly shadowRoot: ShadowRoot | null;

     getAttribute(name: string): string | null;

     getAttributeNS(namespaceURI: string, localName: string): string;

     getAttributeNode(name: string): Attr;

     getAttributeNodeNS(namespaceURI: string, localName: string): Attr;

     getBoundingClientRect(): ClientRect;

     getClientRects(): ClientRectList;

-    getElementsByTagName(name: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(name: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(name: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(name: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(name: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(name: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(name: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(name: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(name: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(name: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(name: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(name: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(name: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(name: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(name: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(name: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(name: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(name: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(name: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(name: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(name: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(name: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(name: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(name: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(name: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(name: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(name: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(name: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(name: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(name: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(name: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(name: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(name: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(name: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(name: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(name: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(name: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(name: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(name: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(name: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(name: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(name: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(name: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(name: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(name: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(name: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(name: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(name: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(name: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(name: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(name: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(name: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(name: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(name: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(name: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(name: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(name: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(name: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(name: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(name: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(name: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(name: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(name: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(name: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(name: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(name: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(name: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(name: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(name: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(name: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(name: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(name: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(name: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(name: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(name: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(name: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(name: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(name: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(name: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(name: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(name: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(name: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(name: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(name: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(name: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(name: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(name: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(name: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(name: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(name: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(name: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(name: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(name: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(name: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(name: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(name: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(name: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(name: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(name: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(name: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(name: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(name: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(name: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(name: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(name: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(name: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(name: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(name: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(name: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(name: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(name: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(name: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(name: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(name: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(name: K): ElementListTagNameMap[K];

     getElementsByTagName(name: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -3708,42 +3319,8 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     insertAdjacentElement(position: string, insertedElement: Element): Element | null;

     insertAdjacentHTML(where: string, html: string): void;

     insertAdjacentText(where: string, text: string): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    attachShadow(shadowRootInitDict: ShadowRootInit): ShadowRoot;

+    addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -3779,10 +3356,12 @@ interface Event {
     readonly target: EventTarget;

     readonly timeStamp: number;

     readonly type: string;

+    readonly scoped: boolean;

     initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;

     preventDefault(): void;

     stopImmediatePropagation(): void;

     stopPropagation(): void;

+    deepPath(): EventTarget[];

     readonly AT_TARGET: number;

     readonly BUBBLING_PHASE: number;

     readonly CAPTURING_PHASE: number;

@@ -3843,6 +3422,7 @@ interface FileReader extends EventTarget, MSBaseReader {
     readAsBinaryString(blob: Blob): void;

     readAsDataURL(blob: Blob): void;

     readAsText(blob: Blob, encoding?: string): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4013,6 +3593,8 @@ interface HTMLAnchorElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAnchorElement: {

@@ -4085,6 +3667,8 @@ interface HTMLAppletElement extends HTMLElement {
     useMap: string;

     vspace: number;

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAppletElement: {

@@ -4151,6 +3735,8 @@ interface HTMLAreaElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAreaElement: {

@@ -4175,6 +3761,8 @@ declare var HTMLAreasCollection: {
 }

 

 interface HTMLAudioElement extends HTMLMediaElement {

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAudioElement: {

@@ -4187,6 +3775,8 @@ interface HTMLBRElement extends HTMLElement {
       * Sets or retrieves the side on which floating objects are not to be positioned when any IHTMLBlockElement is inserted into the document.

       */

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBRElement: {

@@ -4203,6 +3793,8 @@ interface HTMLBaseElement extends HTMLElement {
       * Sets or retrieves the window or frame at which to target content.

       */

     target: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBaseElement: {

@@ -4219,6 +3811,7 @@ interface HTMLBaseFontElement extends HTMLElement, DOML2DeprecatedColorProperty
       * Sets or retrieves the font size of the object.

       */

     size: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4227,6 +3820,27 @@ declare var HTMLBaseFontElement: {
     new(): HTMLBaseFontElement;

 }

 

+interface HTMLBodyElementEventMap extends HTMLElementEventMap {

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "popstate": PopStateEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLBodyElement extends HTMLElement {

     aLink: any;

     background: string;

@@ -4234,147 +3848,27 @@ interface HTMLBodyElement extends HTMLElement {
     bgProperties: string;

     link: any;

     noWrap: boolean;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onafterprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLBodyElement, ev: BeforeUnloadEvent) => any;

+    onblur: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLBodyElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLBodyElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLBodyElement, ev: Event) => any;

+    onmessage: (this: HTMLBodyElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLBodyElement, ev: Event) => any;

+    ononline: (this: HTMLBodyElement, ev: Event) => any;

+    onorientationchange: (this: HTMLBodyElement, ev: Event) => any;

+    onpagehide: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpopstate: (this: HTMLBodyElement, ev: PopStateEvent) => any;

+    onresize: (this: HTMLBodyElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLBodyElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLBodyElement, ev: Event) => any;

     text: any;

     vLink: any;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLBodyElementEventMap>(type: K, listener: (this: HTMLBodyElement, ev: HTMLBodyElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4447,6 +3941,8 @@ interface HTMLButtonElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLButtonElement: {

@@ -4480,6 +3976,8 @@ interface HTMLCanvasElement extends HTMLElement {
       */

     toDataURL(type?: string, ...args: any[]): string;

     toBlob(callback: (result: Blob | null) => void, type?: string, ...arguments: any[]): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLCanvasElement: {

@@ -4510,6 +4008,8 @@ declare var HTMLCollection: {
 

 interface HTMLDListElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDListElement: {

@@ -4519,6 +4019,8 @@ declare var HTMLDListElement: {
 

 interface HTMLDataListElement extends HTMLElement {

     options: HTMLCollectionOf<HTMLOptionElement>;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDataListElement: {

@@ -4528,6 +4030,8 @@ declare var HTMLDataListElement: {
 

 interface HTMLDirectoryElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDirectoryElement: {

@@ -4544,6 +4048,8 @@ interface HTMLDivElement extends HTMLElement {
       * Sets or retrieves whether the browser automatically performs wordwrap.

       */

     noWrap: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDivElement: {

@@ -4552,6 +4058,8 @@ declare var HTMLDivElement: {
 }

 

 interface HTMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDocument: {

@@ -4559,6 +4067,76 @@ declare var HTMLDocument: {
     new(): HTMLDocument;

 }

 

+interface HTMLElementEventMap extends ElementEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforecopy": ClipboardEvent;

+    "beforecut": ClipboardEvent;

+    "beforedeactivate": UIEvent;

+    "beforepaste": ClipboardEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "copy": ClipboardEvent;

+    "cuechange": Event;

+    "cut": ClipboardEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "paste": ClipboardEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectstart": Event;

+    "stalled": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface HTMLElement extends Element {

     accessKey: string;

     readonly children: HTMLCollection;

@@ -4577,73 +4155,73 @@ interface HTMLElement extends Element {
     readonly offsetParent: Element;

     readonly offsetTop: number;

     readonly offsetWidth: number;

-    onabort: (this: this, ev: UIEvent) => any;

-    onactivate: (this: this, ev: UIEvent) => any;

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

-    onbeforecopy: (this: this, ev: ClipboardEvent) => any;

-    onbeforecut: (this: this, ev: ClipboardEvent) => any;

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

-    onbeforepaste: (this: this, ev: ClipboardEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    oncopy: (this: this, ev: ClipboardEvent) => any;

-    oncuechange: (this: this, ev: Event) => any;

-    oncut: (this: this, ev: ClipboardEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondeactivate: (this: this, ev: UIEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onpaste: (this: this, ev: ClipboardEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreset: (this: this, ev: Event) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onselectstart: (this: this, ev: Event) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onabort: (this: HTMLElement, ev: UIEvent) => any;

+    onactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforecopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforecut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforedeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforepaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onblur: (this: HTMLElement, ev: FocusEvent) => any;

+    oncanplay: (this: HTMLElement, ev: Event) => any;

+    oncanplaythrough: (this: HTMLElement, ev: Event) => any;

+    onchange: (this: HTMLElement, ev: Event) => any;

+    onclick: (this: HTMLElement, ev: MouseEvent) => any;

+    oncontextmenu: (this: HTMLElement, ev: PointerEvent) => any;

+    oncopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    oncuechange: (this: HTMLElement, ev: Event) => any;

+    oncut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    ondblclick: (this: HTMLElement, ev: MouseEvent) => any;

+    ondeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    ondrag: (this: HTMLElement, ev: DragEvent) => any;

+    ondragend: (this: HTMLElement, ev: DragEvent) => any;

+    ondragenter: (this: HTMLElement, ev: DragEvent) => any;

+    ondragleave: (this: HTMLElement, ev: DragEvent) => any;

+    ondragover: (this: HTMLElement, ev: DragEvent) => any;

+    ondragstart: (this: HTMLElement, ev: DragEvent) => any;

+    ondrop: (this: HTMLElement, ev: DragEvent) => any;

+    ondurationchange: (this: HTMLElement, ev: Event) => any;

+    onemptied: (this: HTMLElement, ev: Event) => any;

+    onended: (this: HTMLElement, ev: MediaStreamErrorEvent) => any;

+    onerror: (this: HTMLElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLElement, ev: FocusEvent) => any;

+    oninput: (this: HTMLElement, ev: Event) => any;

+    oninvalid: (this: HTMLElement, ev: Event) => any;

+    onkeydown: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeypress: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeyup: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onload: (this: HTMLElement, ev: Event) => any;

+    onloadeddata: (this: HTMLElement, ev: Event) => any;

+    onloadedmetadata: (this: HTMLElement, ev: Event) => any;

+    onloadstart: (this: HTMLElement, ev: Event) => any;

+    onmousedown: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseenter: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseleave: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousemove: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseout: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseover: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseup: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousewheel: (this: HTMLElement, ev: WheelEvent) => any;

+    onmscontentzoom: (this: HTMLElement, ev: UIEvent) => any;

+    onmsmanipulationstatechanged: (this: HTMLElement, ev: MSManipulationEvent) => any;

+    onpaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onpause: (this: HTMLElement, ev: Event) => any;

+    onplay: (this: HTMLElement, ev: Event) => any;

+    onplaying: (this: HTMLElement, ev: Event) => any;

+    onprogress: (this: HTMLElement, ev: ProgressEvent) => any;

+    onratechange: (this: HTMLElement, ev: Event) => any;

+    onreset: (this: HTMLElement, ev: Event) => any;

+    onscroll: (this: HTMLElement, ev: UIEvent) => any;

+    onseeked: (this: HTMLElement, ev: Event) => any;

+    onseeking: (this: HTMLElement, ev: Event) => any;

+    onselect: (this: HTMLElement, ev: UIEvent) => any;

+    onselectstart: (this: HTMLElement, ev: Event) => any;

+    onstalled: (this: HTMLElement, ev: Event) => any;

+    onsubmit: (this: HTMLElement, ev: Event) => any;

+    onsuspend: (this: HTMLElement, ev: Event) => any;

+    ontimeupdate: (this: HTMLElement, ev: Event) => any;

+    onvolumechange: (this: HTMLElement, ev: Event) => any;

+    onwaiting: (this: HTMLElement, ev: Event) => any;

     outerHTML: string;

     outerText: string;

     spellcheck: boolean;

@@ -4656,109 +4234,7 @@ interface HTMLElement extends Element {
     focus(): void;

     msGetInputContext(): MSInputMethodContext;

     setActive(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4814,6 +4290,7 @@ interface HTMLEmbedElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4853,6 +4330,8 @@ interface HTMLFieldSetElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLFieldSetElement: {

@@ -4865,6 +4344,7 @@ interface HTMLFontElement extends HTMLElement, DOML2DeprecatedColorProperty, DOM
       * Sets or retrieves the current typeface family.

       */

     face: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -4940,6 +4420,8 @@ interface HTMLFormElement extends HTMLElement {
       * Fires when a FORM is about to be submitted.

       */

     submit(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -4948,6 +4430,10 @@ declare var HTMLFormElement: {
     new(): HTMLFormElement;

 }

 

+interface HTMLFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Specifies the properties of a border drawn around an object.

@@ -5000,7 +4486,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLFrameElement, ev: Event) => any;

     /**

       * Sets or retrieves whether the frame can be scrolled.

       */

@@ -5013,110 +4499,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string | number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameElementEventMap>(type: K, listener: (this: HTMLFrameElement, ev: HTMLFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5125,6 +4508,25 @@ declare var HTMLFrameElement: {
     new(): HTMLFrameElement;

 }

 

+interface HTMLFrameSetElementEventMap extends HTMLElementEventMap {

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLFrameSetElement extends HTMLElement {

     border: string;

     /**

@@ -5144,152 +4546,34 @@ interface HTMLFrameSetElement extends HTMLElement {
       */

     frameSpacing: any;

     name: string;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

+    onafterprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLFrameSetElement, ev: BeforeUnloadEvent) => any;

     /**

       * Fires when the object loses the input focus.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onblur: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLFrameSetElement, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onfocus: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLFrameSetElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLFrameSetElement, ev: Event) => any;

+    onmessage: (this: HTMLFrameSetElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLFrameSetElement, ev: Event) => any;

+    ononline: (this: HTMLFrameSetElement, ev: Event) => any;

+    onorientationchange: (this: HTMLFrameSetElement, ev: Event) => any;

+    onpagehide: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onresize: (this: HTMLFrameSetElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLFrameSetElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLFrameSetElement, ev: Event) => any;

     /**

       * Sets or retrieves the frame heights of the object.

       */

     rows: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameSetElementEventMap>(type: K, listener: (this: HTMLFrameSetElement, ev: HTMLFrameSetElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5311,6 +4595,7 @@ interface HTMLHRElement extends HTMLElement, DOML2DeprecatedColorProperty, DOML2
       * Sets or retrieves the width of the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5321,6 +4606,8 @@ declare var HTMLHRElement: {
 

 interface HTMLHeadElement extends HTMLElement {

     profile: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadElement: {

@@ -5333,6 +4620,8 @@ interface HTMLHeadingElement extends HTMLElement {
       * Sets or retrieves a value that indicates the table alignment.

       */

     align: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadingElement: {

@@ -5345,6 +4634,8 @@ interface HTMLHtmlElement extends HTMLElement {
       * Sets or retrieves the DTD version that governs the current document.

       */

     version: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHtmlElement: {

@@ -5352,6 +4643,10 @@ declare var HTMLHtmlElement: {
     new(): HTMLHtmlElement;

 }

 

+interface HTMLIFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Sets or retrieves how the object is aligned with adjacent text.

@@ -5409,7 +4704,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLIFrameElement, ev: Event) => any;

     readonly sandbox: DOMSettableTokenList;

     /**

       * Sets or retrieves whether the frame can be scrolled.

@@ -5427,110 +4722,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLIFrameElementEventMap>(type: K, listener: (this: HTMLIFrameElement, ev: HTMLIFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5621,6 +4813,8 @@ interface HTMLImageElement extends HTMLElement {
     readonly x: number;

     readonly y: number;

     msGetAsCastingSource(): any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLImageElement: {

@@ -5832,6 +5026,8 @@ interface HTMLInputElement extends HTMLElement {
       * @param n Value to increment the value by.

       */

     stepUp(n?: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLInputElement: {

@@ -5845,6 +5041,8 @@ interface HTMLLIElement extends HTMLElement {
       * Sets or retrieves the value of a list item.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLIElement: {

@@ -5861,6 +5059,8 @@ interface HTMLLabelElement extends HTMLElement {
       * Sets or retrieves the object to which the given label object is assigned.

       */

     htmlFor: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLabelElement: {

@@ -5877,6 +5077,8 @@ interface HTMLLegendElement extends HTMLElement {
       * Retrieves a reference to the form that the object is embedded in.

       */

     readonly form: HTMLFormElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLegendElement: {

@@ -5920,6 +5122,7 @@ interface HTMLLinkElement extends HTMLElement, LinkStyle {
     type: string;

     import?: Document;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -5937,6 +5140,8 @@ interface HTMLMapElement extends HTMLElement {
       * Sets or retrieves the name of the object.

       */

     name: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMapElement: {

@@ -5944,6 +5149,12 @@ declare var HTMLMapElement: {
     new(): HTMLMapElement;

 }

 

+interface HTMLMarqueeElementEventMap extends HTMLElementEventMap {

+    "bounce": Event;

+    "finish": Event;

+    "start": Event;

+}

+

 interface HTMLMarqueeElement extends HTMLElement {

     behavior: string;

     bgColor: any;

@@ -5951,9 +5162,9 @@ interface HTMLMarqueeElement extends HTMLElement {
     height: string;

     hspace: number;

     loop: number;

-    onbounce: (this: this, ev: Event) => any;

-    onfinish: (this: this, ev: Event) => any;

-    onstart: (this: this, ev: Event) => any;

+    onbounce: (this: HTMLMarqueeElement, ev: Event) => any;

+    onfinish: (this: HTMLMarqueeElement, ev: Event) => any;

+    onstart: (this: HTMLMarqueeElement, ev: Event) => any;

     scrollAmount: number;

     scrollDelay: number;

     trueSpeed: boolean;

@@ -5961,112 +5172,7 @@ interface HTMLMarqueeElement extends HTMLElement {
     width: string;

     start(): void;

     stop(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "bounce", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "finish", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "start", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMarqueeElementEventMap>(type: K, listener: (this: HTMLMarqueeElement, ev: HTMLMarqueeElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -6075,6 +5181,11 @@ declare var HTMLMarqueeElement: {
     new(): HTMLMarqueeElement;

 }

 

+interface HTMLMediaElementEventMap extends HTMLElementEventMap {

+    "encrypted": MediaEncryptedEvent;

+    "msneedkey": MSMediaKeyNeededEvent;

+}

+

 interface HTMLMediaElement extends HTMLElement {

     /**

       * Returns an AudioTrackList object with the audio tracks for a given video element.

@@ -6164,8 +5275,8 @@ interface HTMLMediaElement extends HTMLElement {
       * Gets the current network activity for the element.

       */

     readonly networkState: number;

-    onencrypted: (this: this, ev: MediaEncryptedEvent) => any;

-    onmsneedkey: (this: this, ev: MSMediaKeyNeededEvent) => any;

+    onencrypted: (this: HTMLMediaElement, ev: MediaEncryptedEvent) => any;

+    onmsneedkey: (this: HTMLMediaElement, ev: MSMediaKeyNeededEvent) => any;

     /**

       * Gets a flag that specifies whether playback is paused.

       */

@@ -6243,111 +5354,7 @@ interface HTMLMediaElement extends HTMLElement {
     readonly NETWORK_IDLE: number;

     readonly NETWORK_LOADING: number;

     readonly NETWORK_NO_SOURCE: number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -6368,6 +5375,8 @@ declare var HTMLMediaElement: {
 interface HTMLMenuElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMenuElement: {

@@ -6400,6 +5409,8 @@ interface HTMLMetaElement extends HTMLElement {
       * Sets or retrieves the URL property that will be loaded after the specified time has elapsed. 

       */

     url: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMetaElement: {

@@ -6414,6 +5425,8 @@ interface HTMLMeterElement extends HTMLElement {
     min: number;

     optimum: number;

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMeterElement: {

@@ -6430,6 +5443,8 @@ interface HTMLModElement extends HTMLElement {
       * Sets or retrieves the date and time of a modification to the object.

       */

     dateTime: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLModElement: {

@@ -6444,6 +5459,8 @@ interface HTMLOListElement extends HTMLElement {
       */

     start: number;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOListElement: {

@@ -6563,6 +5580,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -6601,6 +5619,8 @@ interface HTMLOptGroupElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptGroupElement: {

@@ -6638,6 +5658,8 @@ interface HTMLOptionElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptionElement: {

@@ -6664,6 +5686,8 @@ interface HTMLParagraphElement extends HTMLElement {
       */

     align: string;

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParagraphElement: {

@@ -6688,6 +5712,8 @@ interface HTMLParamElement extends HTMLElement {
       * Sets or retrieves the data type of the value attribute.

       */

     valueType: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParamElement: {

@@ -6696,6 +5722,8 @@ declare var HTMLParamElement: {
 }

 

 interface HTMLPictureElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPictureElement: {

@@ -6708,6 +5736,8 @@ interface HTMLPreElement extends HTMLElement {
       * Sets or gets a value that you can use to implement your own width functionality for the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPreElement: {

@@ -6732,6 +5762,8 @@ interface HTMLProgressElement extends HTMLElement {
       * Sets or gets the current value of a progress element. The value must be a non-negative number between 0 and the max value.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLProgressElement: {

@@ -6744,6 +5776,8 @@ interface HTMLQuoteElement extends HTMLElement {
       * Sets or retrieves reference information about the object.

       */

     cite: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLQuoteElement: {

@@ -6782,6 +5816,8 @@ interface HTMLScriptElement extends HTMLElement {
       */

     type: string;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLScriptElement: {

@@ -6876,6 +5912,8 @@ interface HTMLSelectElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -6900,6 +5938,8 @@ interface HTMLSourceElement extends HTMLElement {
      * Gets or sets the MIME type of a media resource.

      */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSourceElement: {

@@ -6908,6 +5948,8 @@ declare var HTMLSourceElement: {
 }

 

 interface HTMLSpanElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSpanElement: {

@@ -6925,6 +5967,7 @@ interface HTMLStyleElement extends HTMLElement, LinkStyle {
       * Retrieves the CSS language in which the style sheet is written.

       */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -6942,6 +5985,8 @@ interface HTMLTableCaptionElement extends HTMLElement {
       * Sets or retrieves whether the caption appears at the top or bottom of the table.

       */

     vAlign: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableCaptionElement: {

@@ -6995,6 +6040,7 @@ interface HTMLTableCellElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7016,6 +6062,7 @@ interface HTMLTableColElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7136,6 +6183,8 @@ interface HTMLTableElement extends HTMLElement {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableElement: {

@@ -7187,6 +6236,7 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the cell in the tr. The default value is -1, which appends the new cell to the end of the cells collection.

       */

     insertCell(index?: number): HTMLTableDataCellElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7214,6 +6264,7 @@ interface HTMLTableSectionElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7224,6 +6275,8 @@ declare var HTMLTableSectionElement: {
 

 interface HTMLTemplateElement extends HTMLElement {

     readonly content: DocumentFragment;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTemplateElement: {

@@ -7329,6 +6382,8 @@ interface HTMLTextAreaElement extends HTMLElement {
       * @param end The offset into the text field for the end of the selection.

       */

     setSelectionRange(start: number, end: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTextAreaElement: {

@@ -7341,6 +6396,8 @@ interface HTMLTitleElement extends HTMLElement {
       * Retrieves or sets the text of the object as a string. 

       */

     text: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTitleElement: {

@@ -7360,6 +6417,8 @@ interface HTMLTrackElement extends HTMLElement {
     readonly LOADED: number;

     readonly LOADING: number;

     readonly NONE: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTrackElement: {

@@ -7374,6 +6433,8 @@ declare var HTMLTrackElement: {
 interface HTMLUListElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUListElement: {

@@ -7382,6 +6443,8 @@ declare var HTMLUListElement: {
 }

 

 interface HTMLUnknownElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUnknownElement: {

@@ -7389,6 +6452,12 @@ declare var HTMLUnknownElement: {
     new(): HTMLUnknownElement;

 }

 

+interface HTMLVideoElementEventMap extends HTMLMediaElementEventMap {

+    "MSVideoFormatChanged": Event;

+    "MSVideoFrameStepCompleted": Event;

+    "MSVideoOptimalLayoutChanged": Event;

+}

+

 interface HTMLVideoElement extends HTMLMediaElement {

     /**

       * Gets or sets the height of the video element.

@@ -7400,9 +6469,9 @@ interface HTMLVideoElement extends HTMLMediaElement {
     msStereo3DPackingMode: string;

     msStereo3DRenderMode: string;

     msZoom: boolean;

-    onMSVideoFormatChanged: (this: this, ev: Event) => any;

-    onMSVideoFrameStepCompleted: (this: this, ev: Event) => any;

-    onMSVideoOptimalLayoutChanged: (this: this, ev: Event) => any;

+    onMSVideoFormatChanged: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoFrameStepCompleted: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoOptimalLayoutChanged: (this: HTMLVideoElement, ev: Event) => any;

     /**

       * Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.

       */

@@ -7429,114 +6498,7 @@ interface HTMLVideoElement extends HTMLMediaElement {
     webkitEnterFullscreen(): void;

     webkitExitFullScreen(): void;

     webkitExitFullscreen(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFormatChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFrameStepCompleted", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoOptimalLayoutChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLVideoElementEventMap>(type: K, listener: (this: HTMLVideoElement, ev: HTMLVideoElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7604,11 +6566,16 @@ declare var IDBCursorWithValue: {
     new(): IDBCursorWithValue;

 }

 

+interface IDBDatabaseEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBDatabase extends EventTarget {

     readonly name: string;

     readonly objectStoreNames: DOMStringList;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBDatabase, ev: Event) => any;

+    onerror: (this: IDBDatabase, ev: ErrorEvent) => any;

     version: number;

     onversionchange: (ev: IDBVersionChangeEvent) => any;

     close(): void;

@@ -7616,8 +6583,7 @@ interface IDBDatabase extends EventTarget {
     deleteObjectStore(name: string): void;

     transaction(storeNames: string | string[], mode?: string): IDBTransaction;

     addEventListener(type: "versionchange", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7694,13 +6660,15 @@ declare var IDBObjectStore: {
     new(): IDBObjectStore;

 }

 

+interface IDBOpenDBRequestEventMap extends IDBRequestEventMap {

+    "blocked": Event;

+    "upgradeneeded": IDBVersionChangeEvent;

+}

+

 interface IDBOpenDBRequest extends IDBRequest {

-    onblocked: (this: this, ev: Event) => any;

-    onupgradeneeded: (this: this, ev: IDBVersionChangeEvent) => any;

-    addEventListener(type: "blocked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "upgradeneeded", listener: (this: this, ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

+    onblocked: (this: IDBOpenDBRequest, ev: Event) => any;

+    onupgradeneeded: (this: IDBOpenDBRequest, ev: IDBVersionChangeEvent) => any;

+    addEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7709,16 +6677,20 @@ declare var IDBOpenDBRequest: {
     new(): IDBOpenDBRequest;

 }

 

+interface IDBRequestEventMap {

+    "error": ErrorEvent;

+    "success": Event;

+}

+

 interface IDBRequest extends EventTarget {

     readonly error: DOMError;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onsuccess: (this: this, ev: Event) => any;

+    onerror: (this: IDBRequest, ev: ErrorEvent) => any;

+    onsuccess: (this: IDBRequest, ev: Event) => any;

     readonly readyState: string;

     readonly result: any;

     source: IDBObjectStore | IDBIndex | IDBCursor;

     readonly transaction: IDBTransaction;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7727,21 +6699,25 @@ declare var IDBRequest: {
     new(): IDBRequest;

 }

 

+interface IDBTransactionEventMap {

+    "abort": Event;

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBTransaction extends EventTarget {

     readonly db: IDBDatabase;

     readonly error: DOMError;

     readonly mode: string;

-    onabort: (this: this, ev: Event) => any;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBTransaction, ev: Event) => any;

+    oncomplete: (this: IDBTransaction, ev: Event) => any;

+    onerror: (this: IDBTransaction, ev: ErrorEvent) => any;

     abort(): void;

     objectStore(name: string): IDBObjectStore;

     readonly READ_ONLY: string;

     readonly READ_WRITE: string;

     readonly VERSION_CHANGE: string;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7874,18 +6850,22 @@ interface MSApp {
 }

 declare var MSApp: MSApp;

 

+interface MSAppAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSAppAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSAppAsyncOperation, ev: Event) => any;

+    onerror: (this: MSAppAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     start(): void;

     readonly COMPLETED: number;

     readonly ERROR: number;

     readonly STARTED: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSAppAsyncOperationEventMap>(type: K, listener: (this: MSAppAsyncOperation, ev: MSAppAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8040,6 +7020,8 @@ interface MSHTMLWebViewElement extends HTMLElement {
     navigateWithHttpRequestMessage(requestMessage: any): void;

     refresh(): void;

     stop(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var MSHTMLWebViewElement: {

@@ -8047,20 +7029,24 @@ declare var MSHTMLWebViewElement: {
     new(): MSHTMLWebViewElement;

 }

 

+interface MSInputMethodContextEventMap {

+    "MSCandidateWindowHide": Event;

+    "MSCandidateWindowShow": Event;

+    "MSCandidateWindowUpdate": Event;

+}

+

 interface MSInputMethodContext extends EventTarget {

     readonly compositionEndOffset: number;

     readonly compositionStartOffset: number;

-    oncandidatewindowhide: (this: this, ev: Event) => any;

-    oncandidatewindowshow: (this: this, ev: Event) => any;

-    oncandidatewindowupdate: (this: this, ev: Event) => any;

+    oncandidatewindowhide: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowshow: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowupdate: (this: MSInputMethodContext, ev: Event) => any;

     readonly target: HTMLElement;

     getCandidateWindowClientRect(): ClientRect;

     getCompositionAlternatives(): string[];

     hasComposition(): boolean;

     isCandidateWindowVisible(): boolean;

-    addEventListener(type: "MSCandidateWindowHide", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowShow", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowUpdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSInputMethodContextEventMap>(type: K, listener: (this: MSInputMethodContext, ev: MSInputMethodContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8226,6 +7212,7 @@ interface MSStreamReader extends EventTarget, MSBaseReader {
     readAsBlob(stream: MSStream, size?: number): void;

     readAsDataURL(stream: MSStream, size?: number): void;

     readAsText(stream: MSStream, encoding?: string, size?: number): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8234,10 +7221,15 @@ declare var MSStreamReader: {
     new(): MSStreamReader;

 }

 

+interface MSWebViewAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSWebViewAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSWebViewAsyncOperation, ev: Event) => any;

+    onerror: (this: MSWebViewAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     readonly target: MSHTMLWebViewElement;

@@ -8249,8 +7241,7 @@ interface MSWebViewAsyncOperation extends EventTarget {
     readonly TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;

     readonly TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;

     readonly TYPE_INVOKE_SCRIPT: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSWebViewAsyncOperationEventMap>(type: K, listener: (this: MSWebViewAsyncOperation, ev: MSWebViewAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8287,12 +7278,16 @@ declare var MediaDeviceInfo: {
     new(): MediaDeviceInfo;

 }

 

+interface MediaDevicesEventMap {

+    "devicechange": Event;

+}

+

 interface MediaDevices extends EventTarget {

-    ondevicechange: (this: this, ev: Event) => any;

+    ondevicechange: (this: MediaDevices, ev: Event) => any;

     enumerateDevices(): any;

     getSupportedConstraints(): MediaTrackSupportedConstraints;

     getUserMedia(constraints: MediaStreamConstraints): PromiseLike<MediaStream>;

-    addEventListener(type: "devicechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaDevicesEventMap>(type: K, listener: (this: MediaDevices, ev: MediaDevicesEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8442,13 +7437,20 @@ declare var MediaSource: {
     isTypeSupported(type: string): boolean;

 }

 

+interface MediaStreamEventMap {

+    "active": Event;

+    "addtrack": TrackEvent;

+    "inactive": Event;

+    "removetrack": TrackEvent;

+}

+

 interface MediaStream extends EventTarget {

     readonly active: boolean;

     readonly id: string;

-    onactive: (this: this, ev: Event) => any;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    oninactive: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onactive: (this: MediaStream, ev: Event) => any;

+    onaddtrack: (this: MediaStream, ev: TrackEvent) => any;

+    oninactive: (this: MediaStream, ev: Event) => any;

+    onremovetrack: (this: MediaStream, ev: TrackEvent) => any;

     addTrack(track: MediaStreamTrack): void;

     clone(): MediaStream;

     getAudioTracks(): MediaStreamTrack[];

@@ -8457,10 +7459,7 @@ interface MediaStream extends EventTarget {
     getVideoTracks(): MediaStreamTrack[];

     removeTrack(track: MediaStreamTrack): void;

     stop(): void;

-    addEventListener(type: "active", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "inactive", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: MediaStream, ev: MediaStreamEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8497,16 +7496,23 @@ declare var MediaStreamErrorEvent: {
     new(type: string, eventInitDict?: MediaStreamErrorEventInit): MediaStreamErrorEvent;

 }

 

+interface MediaStreamTrackEventMap {

+    "ended": MediaStreamErrorEvent;

+    "mute": Event;

+    "overconstrained": MediaStreamErrorEvent;

+    "unmute": Event;

+}

+

 interface MediaStreamTrack extends EventTarget {

     enabled: boolean;

     readonly id: string;

     readonly kind: string;

     readonly label: string;

     readonly muted: boolean;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onmute: (this: this, ev: Event) => any;

-    onoverconstrained: (this: this, ev: MediaStreamErrorEvent) => any;

-    onunmute: (this: this, ev: Event) => any;

+    onended: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onmute: (this: MediaStreamTrack, ev: Event) => any;

+    onoverconstrained: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onunmute: (this: MediaStreamTrack, ev: Event) => any;

     readonly readonly: boolean;

     readonly readyState: string;

     readonly remote: boolean;

@@ -8516,10 +7522,7 @@ interface MediaStreamTrack extends EventTarget {
     getConstraints(): MediaTrackConstraints;

     getSettings(): MediaTrackSettings;

     stop(): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "overconstrained", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unmute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamTrackEventMap>(type: K, listener: (this: MediaStreamTrack, ev: MediaStreamTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8560,12 +7563,16 @@ declare var MessageEvent: {
     new(type: string, eventInitDict?: MessageEventInit): MessageEvent;

 }

 

+interface MessagePortEventMap {

+    "message": MessageEvent;

+}

+

 interface MessagePort extends EventTarget {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: MessagePort, ev: MessageEvent) => any;

     close(): void;

     postMessage(message?: any, ports?: any): void;

     start(): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8743,7 +7750,6 @@ interface Navigator extends Object, NavigatorID, NavigatorOnLine, NavigatorConte
     msLaunchUri(uri: string, successCallback?: MSLaunchUriCallback, noHandlerCallback?: MSLaunchUriCallback): void;

     requestMediaKeySystemAccess(keySystem: string, supportedConfigurations: MediaKeySystemConfiguration[]): PromiseLike<MediaKeySystemAccess>;

     vibrate(pattern: number | number[]): boolean;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var Navigator: {

@@ -8918,10 +7924,14 @@ declare var OfflineAudioCompletionEvent: {
     new(): OfflineAudioCompletionEvent;

 }

 

+interface OfflineAudioContextEventMap {

+    "complete": Event;

+}

+

 interface OfflineAudioContext extends AudioContext {

-    oncomplete: (this: this, ev: Event) => any;

+    oncomplete: (this: OfflineAudioContext, ev: Event) => any;

     startRendering(): PromiseLike<AudioBuffer>;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OfflineAudioContextEventMap>(type: K, listener: (this: OfflineAudioContext, ev: OfflineAudioContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -8930,15 +7940,19 @@ declare var OfflineAudioContext: {
     new(numberOfChannels: number, length: number, sampleRate: number): OfflineAudioContext;

 }

 

+interface OscillatorNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface OscillatorNode extends AudioNode {

     readonly detune: AudioParam;

     readonly frequency: AudioParam;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: OscillatorNode, ev: MediaStreamErrorEvent) => any;

     type: string;

     setPeriodicWave(periodicWave: PeriodicWave): void;

     start(when?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OscillatorNodeEventMap>(type: K, listener: (this: OscillatorNode, ev: OscillatorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9317,9 +8331,14 @@ declare var RTCDTMFToneChangeEvent: {
     new(type: string, eventInitDict: RTCDTMFToneChangeEventInit): RTCDTMFToneChangeEvent;

 }

 

+interface RTCDtlsTransportEventMap {

+    "dtlsstatechange": RTCDtlsTransportStateChangedEvent;

+    "error": ErrorEvent;

+}

+

 interface RTCDtlsTransport extends RTCStatsProvider {

-    ondtlsstatechange: ((this: this, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    ondtlsstatechange: ((this: RTCDtlsTransport, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

+    onerror: ((this: RTCDtlsTransport, ev: ErrorEvent) => any) | null;

     readonly state: string;

     readonly transport: RTCIceTransport;

     getLocalParameters(): RTCDtlsParameters;

@@ -9327,8 +8346,7 @@ interface RTCDtlsTransport extends RTCStatsProvider {
     getRemoteParameters(): RTCDtlsParameters | null;

     start(remoteParameters: RTCDtlsParameters): void;

     stop(): void;

-    addEventListener(type: "dtlsstatechange", listener: (this: this, ev: RTCDtlsTransportStateChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtlsTransportEventMap>(type: K, listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9346,15 +8364,19 @@ declare var RTCDtlsTransportStateChangedEvent: {
     new(): RTCDtlsTransportStateChangedEvent;

 }

 

+interface RTCDtmfSenderEventMap {

+    "tonechange": RTCDTMFToneChangeEvent;

+}

+

 interface RTCDtmfSender extends EventTarget {

     readonly canInsertDTMF: boolean;

     readonly duration: number;

     readonly interToneGap: number;

-    ontonechange: (this: this, ev: RTCDTMFToneChangeEvent) => any;

+    ontonechange: (this: RTCDtmfSender, ev: RTCDTMFToneChangeEvent) => any;

     readonly sender: RTCRtpSender;

     readonly toneBuffer: string;

     insertDTMF(tones: string, duration?: number, interToneGap?: number): void;

-    addEventListener(type: "tonechange", listener: (this: this, ev: RTCDTMFToneChangeEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtmfSenderEventMap>(type: K, listener: (this: RTCDtmfSender, ev: RTCDtmfSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9372,15 +8394,19 @@ declare var RTCIceCandidatePairChangedEvent: {
     new(): RTCIceCandidatePairChangedEvent;

 }

 

+interface RTCIceGathererEventMap {

+    "error": ErrorEvent;

+    "localcandidate": RTCIceGathererEvent;

+}

+

 interface RTCIceGatherer extends RTCStatsProvider {

     readonly component: string;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onlocalcandidate: ((this: this, ev: RTCIceGathererEvent) => any) | null;

+    onerror: ((this: RTCIceGatherer, ev: ErrorEvent) => any) | null;

+    onlocalcandidate: ((this: RTCIceGatherer, ev: RTCIceGathererEvent) => any) | null;

     createAssociatedGatherer(): RTCIceGatherer;

     getLocalCandidates(): RTCIceCandidate[];

     getLocalParameters(): RTCIceParameters;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "localcandidate", listener: (this: this, ev: RTCIceGathererEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceGathererEventMap>(type: K, listener: (this: RTCIceGatherer, ev: RTCIceGathererEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9398,11 +8424,16 @@ declare var RTCIceGathererEvent: {
     new(): RTCIceGathererEvent;

 }

 

+interface RTCIceTransportEventMap {

+    "candidatepairchange": RTCIceCandidatePairChangedEvent;

+    "icestatechange": RTCIceTransportStateChangedEvent;

+}

+

 interface RTCIceTransport extends RTCStatsProvider {

     readonly component: string;

     readonly iceGatherer: RTCIceGatherer | null;

-    oncandidatepairchange: ((this: this, ev: RTCIceCandidatePairChangedEvent) => any) | null;

-    onicestatechange: ((this: this, ev: RTCIceTransportStateChangedEvent) => any) | null;

+    oncandidatepairchange: ((this: RTCIceTransport, ev: RTCIceCandidatePairChangedEvent) => any) | null;

+    onicestatechange: ((this: RTCIceTransport, ev: RTCIceTransportStateChangedEvent) => any) | null;

     readonly role: string;

     readonly state: string;

     addRemoteCandidate(remoteCandidate: RTCIceCandidate | RTCIceCandidateComplete): void;

@@ -9413,8 +8444,7 @@ interface RTCIceTransport extends RTCStatsProvider {
     setRemoteCandidates(remoteCandidates: RTCIceCandidate[]): void;

     start(gatherer: RTCIceGatherer, remoteParameters: RTCIceParameters, role?: string): void;

     stop(): void;

-    addEventListener(type: "candidatepairchange", listener: (this: this, ev: RTCIceCandidatePairChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "icestatechange", listener: (this: this, ev: RTCIceTransportStateChangedEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceTransportEventMap>(type: K, listener: (this: RTCIceTransport, ev: RTCIceTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9432,8 +8462,12 @@ declare var RTCIceTransportStateChangedEvent: {
     new(): RTCIceTransportStateChangedEvent;

 }

 

+interface RTCRtpReceiverEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCRtpReceiver extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCRtpReceiver, ev: ErrorEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack | null;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -9442,7 +8476,7 @@ interface RTCRtpReceiver extends RTCStatsProvider {
     requestSendCSRC(csrc: number): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpReceiverEventMap>(type: K, listener: (this: RTCRtpReceiver, ev: RTCRtpReceiverEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9452,9 +8486,14 @@ declare var RTCRtpReceiver: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCRtpSenderEventMap {

+    "error": ErrorEvent;

+    "ssrcconflict": RTCSsrcConflictEvent;

+}

+

 interface RTCRtpSender extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onssrcconflict: ((this: this, ev: RTCSsrcConflictEvent) => any) | null;

+    onerror: ((this: RTCRtpSender, ev: ErrorEvent) => any) | null;

+    onssrcconflict: ((this: RTCRtpSender, ev: RTCSsrcConflictEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -9462,8 +8501,7 @@ interface RTCRtpSender extends RTCStatsProvider {
     setTrack(track: MediaStreamTrack): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ssrcconflict", listener: (this: this, ev: RTCSsrcConflictEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpSenderEventMap>(type: K, listener: (this: RTCRtpSender, ev: RTCRtpSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9473,10 +8511,14 @@ declare var RTCRtpSender: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCSrtpSdesTransportEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCSrtpSdesTransport extends EventTarget {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCSrtpSdesTransport, ev: ErrorEvent) => any) | null;

     readonly transport: RTCIceTransport;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCSrtpSdesTransportEventMap>(type: K, listener: (this: RTCSrtpSdesTransport, ev: RTCSrtpSdesTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9551,6 +8593,7 @@ declare var Range: {
 

 interface SVGAElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {

     readonly target: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9707,6 +8750,7 @@ interface SVGCircleElement extends SVGElement, SVGStylable, SVGTransformable, SV
     readonly cx: SVGAnimatedLength;

     readonly cy: SVGAnimatedLength;

     readonly r: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9717,6 +8761,7 @@ declare var SVGCircleElement: {
 

 interface SVGClipPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGUnitTypes {

     readonly clipPathUnits: SVGAnimatedEnumeration;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9739,6 +8784,8 @@ interface SVGComponentTransferFunctionElement extends SVGElement {
     readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGComponentTransferFunctionElement: {

@@ -9753,6 +8800,7 @@ declare var SVGComponentTransferFunctionElement: {
 }

 

 interface SVGDefsElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9762,6 +8810,7 @@ declare var SVGDefsElement: {
 }

 

 interface SVGDescElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9770,67 +8819,35 @@ declare var SVGDescElement: {
     new(): SVGDescElement;

 }

 

+interface SVGElementEventMap extends ElementEventMap {

+    "click": MouseEvent;

+    "dblclick": MouseEvent;

+    "focusin": FocusEvent;

+    "focusout": FocusEvent;

+    "load": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+}

+

 interface SVGElement extends Element {

-    onclick: (this: this, ev: MouseEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    onfocusin: (this: this, ev: FocusEvent) => any;

-    onfocusout: (this: this, ev: FocusEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onclick: (this: SVGElement, ev: MouseEvent) => any;

+    ondblclick: (this: SVGElement, ev: MouseEvent) => any;

+    onfocusin: (this: SVGElement, ev: FocusEvent) => any;

+    onfocusout: (this: SVGElement, ev: FocusEvent) => any;

+    onload: (this: SVGElement, ev: Event) => any;

+    onmousedown: (this: SVGElement, ev: MouseEvent) => any;

+    onmousemove: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseout: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseover: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseup: (this: SVGElement, ev: MouseEvent) => any;

     readonly ownerSVGElement: SVGSVGElement;

     readonly viewportElement: SVGElement;

     xmlbase: string;

     className: any;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9870,6 +8887,7 @@ interface SVGEllipseElement extends SVGElement, SVGStylable, SVGTransformable, S
     readonly cy: SVGAnimatedLength;

     readonly rx: SVGAnimatedLength;

     readonly ry: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9899,6 +8917,7 @@ interface SVGFEBlendElement extends SVGElement, SVGFilterPrimitiveStandardAttrib
     readonly SVG_FEBLEND_MODE_SCREEN: number;

     readonly SVG_FEBLEND_MODE_SOFT_LIGHT: number;

     readonly SVG_FEBLEND_MODE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9933,6 +8952,7 @@ interface SVGFEColorMatrixElement extends SVGElement, SVGFilterPrimitiveStandard
     readonly SVG_FECOLORMATRIX_TYPE_MATRIX: number;

     readonly SVG_FECOLORMATRIX_TYPE_SATURATE: number;

     readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9948,6 +8968,7 @@ declare var SVGFEColorMatrixElement: {
 

 interface SVGFEComponentTransferElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9971,6 +8992,7 @@ interface SVGFECompositeElement extends SVGElement, SVGFilterPrimitiveStandardAt
     readonly SVG_FECOMPOSITE_OPERATOR_OVER: number;

     readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;

     readonly SVG_FECOMPOSITE_OPERATOR_XOR: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10003,6 +9025,7 @@ interface SVGFEConvolveMatrixElement extends SVGElement, SVGFilterPrimitiveStand
     readonly SVG_EDGEMODE_NONE: number;

     readonly SVG_EDGEMODE_UNKNOWN: number;

     readonly SVG_EDGEMODE_WRAP: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10021,6 +9044,7 @@ interface SVGFEDiffuseLightingElement extends SVGElement, SVGFilterPrimitiveStan
     readonly kernelUnitLengthX: SVGAnimatedNumber;

     readonly kernelUnitLengthY: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10040,6 +9064,7 @@ interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStan
     readonly SVG_CHANNEL_G: number;

     readonly SVG_CHANNEL_R: number;

     readonly SVG_CHANNEL_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10056,6 +9081,8 @@ declare var SVGFEDisplacementMapElement: {
 interface SVGFEDistantLightElement extends SVGElement {

     readonly azimuth: SVGAnimatedNumber;

     readonly elevation: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEDistantLightElement: {

@@ -10064,6 +9091,7 @@ declare var SVGFEDistantLightElement: {
 }

 

 interface SVGFEFloodElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10109,6 +9137,7 @@ interface SVGFEGaussianBlurElement extends SVGElement, SVGFilterPrimitiveStandar
     readonly stdDeviationX: SVGAnimatedNumber;

     readonly stdDeviationY: SVGAnimatedNumber;

     setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10119,6 +9148,7 @@ declare var SVGFEGaussianBlurElement: {
 

 interface SVGFEImageElement extends SVGElement, SVGFilterPrimitiveStandardAttributes, SVGLangSpace, SVGURIReference, SVGExternalResourcesRequired {

     readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10128,6 +9158,7 @@ declare var SVGFEImageElement: {
 }

 

 interface SVGFEMergeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10138,6 +9169,8 @@ declare var SVGFEMergeElement: {
 

 interface SVGFEMergeNodeElement extends SVGElement {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEMergeNodeElement: {

@@ -10153,6 +9186,7 @@ interface SVGFEMorphologyElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_MORPHOLOGY_OPERATOR_DILATE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_ERODE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10168,6 +9202,7 @@ interface SVGFEOffsetElement extends SVGElement, SVGFilterPrimitiveStandardAttri
     readonly dx: SVGAnimatedNumber;

     readonly dy: SVGAnimatedNumber;

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10180,6 +9215,8 @@ interface SVGFEPointLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEPointLightElement: {

@@ -10194,6 +9231,7 @@ interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveSta
     readonly specularConstant: SVGAnimatedNumber;

     readonly specularExponent: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10211,6 +9249,8 @@ interface SVGFESpotLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFESpotLightElement: {

@@ -10220,6 +9260,7 @@ declare var SVGFESpotLightElement: {
 

 interface SVGFETileElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10241,6 +9282,7 @@ interface SVGFETurbulenceElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: number;

     readonly SVG_TURBULENCE_TYPE_TURBULENCE: number;

     readonly SVG_TURBULENCE_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10265,6 +9307,7 @@ interface SVGFilterElement extends SVGElement, SVGUnitTypes, SVGStylable, SVGLan
     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

     setFilterRes(filterResX: number, filterResY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10278,6 +9321,7 @@ interface SVGForeignObjectElement extends SVGElement, SVGStylable, SVGTransforma
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10287,6 +9331,7 @@ declare var SVGForeignObjectElement: {
 }

 

 interface SVGGElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10303,6 +9348,7 @@ interface SVGGradientElement extends SVGElement, SVGStylable, SVGExternalResourc
     readonly SVG_SPREADMETHOD_REFLECT: number;

     readonly SVG_SPREADMETHOD_REPEAT: number;

     readonly SVG_SPREADMETHOD_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10321,6 +9367,7 @@ interface SVGImageElement extends SVGElement, SVGStylable, SVGTransformable, SVG
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10386,6 +9433,7 @@ interface SVGLineElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly x2: SVGAnimatedLength;

     readonly y1: SVGAnimatedLength;

     readonly y2: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10422,6 +9470,7 @@ interface SVGMarkerElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExt
     readonly SVG_MARKER_ORIENT_ANGLE: number;

     readonly SVG_MARKER_ORIENT_AUTO: number;

     readonly SVG_MARKER_ORIENT_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10443,6 +9492,7 @@ interface SVGMaskElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10477,6 +9527,8 @@ declare var SVGMatrix: {
 }

 

 interface SVGMetadataElement extends SVGElement {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGMetadataElement: {

@@ -10532,6 +9584,7 @@ interface SVGPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     getPathSegAtLength(distance: number): number;

     getPointAtLength(distance: number): SVGPoint;

     getTotalLength(): number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10824,6 +9877,7 @@ interface SVGPatternElement extends SVGElement, SVGStylable, SVGTests, SVGLangSp
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10860,6 +9914,7 @@ declare var SVGPointList: {
 }

 

 interface SVGPolygonElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10869,6 +9924,7 @@ declare var SVGPolygonElement: {
 }

 

 interface SVGPolylineElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10947,6 +10003,7 @@ interface SVGRectElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10955,18 +10012,27 @@ declare var SVGRectElement: {
     new(): SVGRectElement;

 }

 

+interface SVGSVGElementEventMap extends SVGElementEventMap {

+    "SVGAbort": Event;

+    "SVGError": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "SVGUnload": Event;

+    "SVGZoom": SVGZoomEvent;

+}

+

 interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTests, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     contentScriptType: string;

     contentStyleType: string;

     currentScale: number;

     readonly currentTranslate: SVGPoint;

     readonly height: SVGAnimatedLength;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onzoom: (this: this, ev: SVGZoomEvent) => any;

+    onabort: (this: SVGSVGElement, ev: Event) => any;

+    onerror: (this: SVGSVGElement, ev: Event) => any;

+    onresize: (this: SVGSVGElement, ev: UIEvent) => any;

+    onscroll: (this: SVGSVGElement, ev: UIEvent) => any;

+    onunload: (this: SVGSVGElement, ev: Event) => any;

+    onzoom: (this: SVGSVGElement, ev: SVGZoomEvent) => any;

     readonly pixelUnitToMillimeterX: number;

     readonly pixelUnitToMillimeterY: number;

     readonly screenPixelToMillimeterX: number;

@@ -10998,58 +10064,7 @@ interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTest
     unpauseAnimations(): void;

     unsuspendRedraw(suspendHandleID: number): void;

     unsuspendRedrawAll(): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGAbort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGError", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGUnload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGZoom", listener: (this: this, ev: SVGZoomEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGSVGElementEventMap>(type: K, listener: (this: SVGSVGElement, ev: SVGSVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11060,6 +10075,7 @@ declare var SVGSVGElement: {
 

 interface SVGScriptElement extends SVGElement, SVGExternalResourcesRequired, SVGURIReference {

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11070,6 +10086,7 @@ declare var SVGScriptElement: {
 

 interface SVGStopElement extends SVGElement, SVGStylable {

     readonly offset: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11099,6 +10116,7 @@ interface SVGStyleElement extends SVGElement, SVGLangSpace {
     media: string;

     title: string;

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11108,6 +10126,7 @@ declare var SVGStyleElement: {
 }

 

 interface SVGSwitchElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11117,6 +10136,7 @@ declare var SVGSwitchElement: {
 }

 

 interface SVGSymbolElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11148,6 +10168,7 @@ interface SVGTextContentElement extends SVGElement, SVGStylable, SVGTests, SVGLa
     readonly LENGTHADJUST_SPACING: number;

     readonly LENGTHADJUST_SPACINGANDGLYPHS: number;

     readonly LENGTHADJUST_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11160,7 +10181,6 @@ declare var SVGTextContentElement: {
 }

 

 interface SVGTextElement extends SVGTextPositioningElement, SVGTransformable {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextElement: {

@@ -11178,7 +10198,6 @@ interface SVGTextPathElement extends SVGTextContentElement, SVGURIReference {
     readonly TEXTPATH_SPACINGTYPE_AUTO: number;

     readonly TEXTPATH_SPACINGTYPE_EXACT: number;

     readonly TEXTPATH_SPACINGTYPE_UNKNOWN: number;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextPathElement: {

@@ -11206,6 +10225,7 @@ declare var SVGTextPositioningElement: {
 }

 

 interface SVGTitleElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11277,6 +10297,7 @@ interface SVGUseElement extends SVGElement, SVGStylable, SVGTransformable, SVGTe
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11287,6 +10308,7 @@ declare var SVGUseElement: {
 

 interface SVGViewElement extends SVGElement, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     readonly viewTarget: SVGStringList;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11318,6 +10340,10 @@ declare var SVGZoomEvent: {
     new(): SVGZoomEvent;

 }

 

+interface ScreenEventMap {

+    "MSOrientationChange": Event;

+}

+

 interface Screen extends EventTarget {

     readonly availHeight: number;

     readonly availWidth: number;

@@ -11330,14 +10356,14 @@ interface Screen extends EventTarget {
     readonly logicalXDPI: number;

     readonly logicalYDPI: number;

     readonly msOrientation: string;

-    onmsorientationchange: (this: this, ev: Event) => any;

+    onmsorientationchange: (this: Screen, ev: Event) => any;

     readonly pixelDepth: number;

     readonly systemXDPI: number;

     readonly systemYDPI: number;

     readonly width: number;

     msLockOrientation(orientations: string | string[]): boolean;

     msUnlockOrientation(): void;

-    addEventListener(type: "MSOrientationChange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ScreenEventMap>(type: K, listener: (this: Screen, ev: ScreenEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11356,10 +10382,14 @@ declare var ScriptNotifyEvent: {
     new(): ScriptNotifyEvent;

 }

 

+interface ScriptProcessorNodeEventMap {

+    "audioprocess": AudioProcessingEvent;

+}

+

 interface ScriptProcessorNode extends AudioNode {

     readonly bufferSize: number;

-    onaudioprocess: (this: this, ev: AudioProcessingEvent) => any;

-    addEventListener(type: "audioprocess", listener: (this: this, ev: AudioProcessingEvent) => any, useCapture?: boolean): void;

+    onaudioprocess: (this: ScriptProcessorNode, ev: AudioProcessingEvent) => any;

+    addEventListener<K extends keyof ScriptProcessorNodeEventMap>(type: K, listener: (this: ScriptProcessorNode, ev: ScriptProcessorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11541,6 +10571,7 @@ declare var SubtleCrypto: {
 

 interface Text extends CharacterData {

     readonly wholeText: string;

+    readonly assignedSlot: HTMLSlotElement | null;

     splitText(offset: number): Text;

 }

 

@@ -11590,6 +10621,12 @@ declare var TextMetrics: {
     new(): TextMetrics;

 }

 

+interface TextTrackEventMap {

+    "cuechange": Event;

+    "error": ErrorEvent;

+    "load": Event;

+}

+

 interface TextTrack extends EventTarget {

     readonly activeCues: TextTrackCueList;

     readonly cues: TextTrackCueList;

@@ -11598,9 +10635,9 @@ interface TextTrack extends EventTarget {
     readonly label: string;

     readonly language: string;

     mode: any;

-    oncuechange: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

+    oncuechange: (this: TextTrack, ev: Event) => any;

+    onerror: (this: TextTrack, ev: ErrorEvent) => any;

+    onload: (this: TextTrack, ev: Event) => any;

     readonly readyState: number;

     addCue(cue: TextTrackCue): void;

     removeCue(cue: TextTrackCue): void;

@@ -11611,9 +10648,7 @@ interface TextTrack extends EventTarget {
     readonly LOADING: number;

     readonly NONE: number;

     readonly SHOWING: number;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackEventMap>(type: K, listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11629,18 +10664,22 @@ declare var TextTrack: {
     readonly SHOWING: number;

 }

 

+interface TextTrackCueEventMap {

+    "enter": Event;

+    "exit": Event;

+}

+

 interface TextTrackCue extends EventTarget {

     endTime: number;

     id: string;

-    onenter: (this: this, ev: Event) => any;

-    onexit: (this: this, ev: Event) => any;

+    onenter: (this: TextTrackCue, ev: Event) => any;

+    onexit: (this: TextTrackCue, ev: Event) => any;

     pauseOnExit: boolean;

     startTime: number;

     text: string;

     readonly track: TextTrack;

     getCueAsHTML(): DocumentFragment;

-    addEventListener(type: "enter", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "exit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11661,11 +10700,15 @@ declare var TextTrackCueList: {
     new(): TextTrackCueList;

 }

 

+interface TextTrackListEventMap {

+    "addtrack": TrackEvent;

+}

+

 interface TextTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: ((this: this, ev: TrackEvent) => any) | null;

+    onaddtrack: ((this: TextTrackList, ev: TrackEvent) => any) | null;

     item(index: number): TextTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackListEventMap>(type: K, listener: (this: TextTrackList, ev: TextTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: TextTrack;

 }

@@ -11855,17 +10898,21 @@ declare var VideoTrack: {
     new(): VideoTrack;

 }

 

+interface VideoTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface VideoTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: VideoTrackList, ev: TrackEvent) => any;

+    onchange: (this: VideoTrackList, ev: Event) => any;

+    onremovetrack: (this: VideoTrackList, ev: TrackEvent) => any;

     readonly selectedIndex: number;

     getTrackById(id: string): VideoTrack | null;

     item(index: number): VideoTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof VideoTrackListEventMap>(type: K, listener: (this: VideoTrackList, ev: VideoTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: VideoTrack;

 }

@@ -12811,14 +11858,21 @@ declare var WebKitPoint: {
     new(x?: number, y?: number): WebKitPoint;

 }

 

+interface WebSocketEventMap {

+    "close": CloseEvent;

+    "error": ErrorEvent;

+    "message": MessageEvent;

+    "open": Event;

+}

+

 interface WebSocket extends EventTarget {

     binaryType: string;

     readonly bufferedAmount: number;

     readonly extensions: string;

-    onclose: (this: this, ev: CloseEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onopen: (this: this, ev: Event) => any;

+    onclose: (this: WebSocket, ev: CloseEvent) => any;

+    onerror: (this: WebSocket, ev: ErrorEvent) => any;

+    onmessage: (this: WebSocket, ev: MessageEvent) => any;

+    onopen: (this: WebSocket, ev: Event) => any;

     readonly protocol: string;

     readonly readyState: number;

     readonly url: string;

@@ -12828,10 +11882,7 @@ interface WebSocket extends EventTarget {
     readonly CLOSING: number;

     readonly CONNECTING: number;

     readonly OPEN: number;

-    addEventListener(type: "close", listener: (this: this, ev: CloseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12867,6 +11918,95 @@ declare var WheelEvent: {
     readonly DOM_DELTA_PIXEL: number;

 }

 

+interface WindowEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "compassneedscalibration": Event;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "devicelight": DeviceLightEvent;

+    "devicemotion": DeviceMotionEvent;

+    "deviceorientation": DeviceOrientationEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "message": MessageEvent;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "popstate": PopStateEvent;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "stalled": Event;

+    "storage": StorageEvent;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "unload": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface Window extends EventTarget, WindowTimers, WindowSessionStorage, WindowLocalStorage, WindowConsole, GlobalEventHandlers, IDBEnvironment, WindowBase64 {

     readonly applicationCache: ApplicationCache;

     readonly clientInformation: Navigator;

@@ -12891,97 +12031,97 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     name: string;

     readonly navigator: Navigator;

     offscreenBuffering: string | boolean;

-    onabort: (this: this, ev: UIEvent) => any;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncompassneedscalibration: (this: this, ev: Event) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondevicelight: (this: this, ev: DeviceLightEvent) => any;

-    ondevicemotion: (this: this, ev: DeviceMotionEvent) => any;

-    ondeviceorientation: (this: this, ev: DeviceOrientationEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onabort: (this: Window, ev: UIEvent) => any;

+    onafterprint: (this: Window, ev: Event) => any;

+    onbeforeprint: (this: Window, ev: Event) => any;

+    onbeforeunload: (this: Window, ev: BeforeUnloadEvent) => any;

+    onblur: (this: Window, ev: FocusEvent) => any;

+    oncanplay: (this: Window, ev: Event) => any;

+    oncanplaythrough: (this: Window, ev: Event) => any;

+    onchange: (this: Window, ev: Event) => any;

+    onclick: (this: Window, ev: MouseEvent) => any;

+    oncompassneedscalibration: (this: Window, ev: Event) => any;

+    oncontextmenu: (this: Window, ev: PointerEvent) => any;

+    ondblclick: (this: Window, ev: MouseEvent) => any;

+    ondevicelight: (this: Window, ev: DeviceLightEvent) => any;

+    ondevicemotion: (this: Window, ev: DeviceMotionEvent) => any;

+    ondeviceorientation: (this: Window, ev: DeviceOrientationEvent) => any;

+    ondrag: (this: Window, ev: DragEvent) => any;

+    ondragend: (this: Window, ev: DragEvent) => any;

+    ondragenter: (this: Window, ev: DragEvent) => any;

+    ondragleave: (this: Window, ev: DragEvent) => any;

+    ondragover: (this: Window, ev: DragEvent) => any;

+    ondragstart: (this: Window, ev: DragEvent) => any;

+    ondrop: (this: Window, ev: DragEvent) => any;

+    ondurationchange: (this: Window, ev: Event) => any;

+    onemptied: (this: Window, ev: Event) => any;

+    onended: (this: Window, ev: MediaStreamErrorEvent) => any;

     onerror: ErrorEventHandler;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

-    onreset: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

+    onfocus: (this: Window, ev: FocusEvent) => any;

+    onhashchange: (this: Window, ev: HashChangeEvent) => any;

+    oninput: (this: Window, ev: Event) => any;

+    oninvalid: (this: Window, ev: Event) => any;

+    onkeydown: (this: Window, ev: KeyboardEvent) => any;

+    onkeypress: (this: Window, ev: KeyboardEvent) => any;

+    onkeyup: (this: Window, ev: KeyboardEvent) => any;

+    onload: (this: Window, ev: Event) => any;

+    onloadeddata: (this: Window, ev: Event) => any;

+    onloadedmetadata: (this: Window, ev: Event) => any;

+    onloadstart: (this: Window, ev: Event) => any;

+    onmessage: (this: Window, ev: MessageEvent) => any;

+    onmousedown: (this: Window, ev: MouseEvent) => any;

+    onmouseenter: (this: Window, ev: MouseEvent) => any;

+    onmouseleave: (this: Window, ev: MouseEvent) => any;

+    onmousemove: (this: Window, ev: MouseEvent) => any;

+    onmouseout: (this: Window, ev: MouseEvent) => any;

+    onmouseover: (this: Window, ev: MouseEvent) => any;

+    onmouseup: (this: Window, ev: MouseEvent) => any;

+    onmousewheel: (this: Window, ev: WheelEvent) => any;

+    onmsgesturechange: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Window, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Window, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Window, ev: MSGestureEvent) => any;

+    onmspointercancel: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Window, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Window, ev: MSPointerEvent) => any;

+    onoffline: (this: Window, ev: Event) => any;

+    ononline: (this: Window, ev: Event) => any;

+    onorientationchange: (this: Window, ev: Event) => any;

+    onpagehide: (this: Window, ev: PageTransitionEvent) => any;

+    onpageshow: (this: Window, ev: PageTransitionEvent) => any;

+    onpause: (this: Window, ev: Event) => any;

+    onplay: (this: Window, ev: Event) => any;

+    onplaying: (this: Window, ev: Event) => any;

+    onpopstate: (this: Window, ev: PopStateEvent) => any;

+    onprogress: (this: Window, ev: ProgressEvent) => any;

+    onratechange: (this: Window, ev: Event) => any;

+    onreadystatechange: (this: Window, ev: ProgressEvent) => any;

+    onreset: (this: Window, ev: Event) => any;

+    onresize: (this: Window, ev: UIEvent) => any;

+    onscroll: (this: Window, ev: UIEvent) => any;

+    onseeked: (this: Window, ev: Event) => any;

+    onseeking: (this: Window, ev: Event) => any;

+    onselect: (this: Window, ev: UIEvent) => any;

+    onstalled: (this: Window, ev: Event) => any;

+    onstorage: (this: Window, ev: StorageEvent) => any;

+    onsubmit: (this: Window, ev: Event) => any;

+    onsuspend: (this: Window, ev: Event) => any;

+    ontimeupdate: (this: Window, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onunload: (this: Window, ev: Event) => any;

+    onvolumechange: (this: Window, ev: Event) => any;

+    onwaiting: (this: Window, ev: Event) => any;

     opener: any;

     orientation: string | number;

     readonly outerHeight: number;

@@ -13040,101 +12180,7 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     scroll(options?: ScrollToOptions): void;

     scrollTo(options?: ScrollToOptions): void;

     scrollBy(options?: ScrollToOptions): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "compassneedscalibration", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicelight", listener: (this: this, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicemotion", listener: (this: this, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deviceorientation", listener: (this: this, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13143,12 +12189,15 @@ declare var Window: {
     new(): Window;

 }

 

+interface WorkerEventMap extends AbstractWorkerEventMap {

+    "message": MessageEvent;

+}

+

 interface Worker extends EventTarget, AbstractWorker {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: Worker, ev: MessageEvent) => any;

     postMessage(message: any, ports?: any): void;

     terminate(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13158,6 +12207,8 @@ declare var Worker: {
 }

 

 interface XMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var XMLDocument: {

@@ -13165,8 +12216,12 @@ declare var XMLDocument: {
     new(): XMLDocument;

 }

 

+interface XMLHttpRequestEventMap extends XMLHttpRequestEventTargetEventMap {

+    "readystatechange": Event;

+}

+

 interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {

-    onreadystatechange: (this: this, ev: Event) => any;

+    onreadystatechange: (this: XMLHttpRequest, ev: Event) => any;

     readonly readyState: number;

     readonly response: any;

     readonly responseText: string;

@@ -13194,14 +12249,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly LOADING: number;

     readonly OPENED: number;

     readonly UNSENT: number;

-    addEventListener(type: "abort", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13217,6 +12265,7 @@ declare var XMLHttpRequest: {
 }

 

 interface XMLHttpRequestUpload extends EventTarget, XMLHttpRequestEventTarget {

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13237,7 +12286,7 @@ declare var XMLSerializer: {
 interface XPathEvaluator {

     createExpression(expression: string, resolver: XPathNSResolver): XPathExpression;

     createNSResolver(nodeResolver?: Node): XPathNSResolver;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathEvaluator: {

@@ -13246,7 +12295,7 @@ declare var XPathEvaluator: {
 }

 

 interface XPathExpression {

-    evaluate(contextNode: Node, type: number, result: XPathResult): XPathExpression;

+    evaluate(contextNode: Node, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathExpression: {

@@ -13316,9 +12365,13 @@ declare var XSLTProcessor: {
     new(): XSLTProcessor;

 }

 

+interface AbstractWorkerEventMap {

+    "error": ErrorEvent;

+}

+

 interface AbstractWorker {

-    onerror: (this: this, ev: ErrorEvent) => any;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    onerror: (this: AbstractWorker, ev: ErrorEvent) => any;

+    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13429,25 +12482,29 @@ interface GetSVGDocument {
     getSVGDocument(): Document;

 }

 

+interface GlobalEventHandlersEventMap {

+    "pointercancel": PointerEvent;

+    "pointerdown": PointerEvent;

+    "pointerenter": PointerEvent;

+    "pointerleave": PointerEvent;

+    "pointermove": PointerEvent;

+    "pointerout": PointerEvent;

+    "pointerover": PointerEvent;

+    "pointerup": PointerEvent;

+    "wheel": WheelEvent;

+}

+

 interface GlobalEventHandlers {

-    onpointercancel: (this: this, ev: PointerEvent) => any;

-    onpointerdown: (this: this, ev: PointerEvent) => any;

-    onpointerenter: (this: this, ev: PointerEvent) => any;

-    onpointerleave: (this: this, ev: PointerEvent) => any;

-    onpointermove: (this: this, ev: PointerEvent) => any;

-    onpointerout: (this: this, ev: PointerEvent) => any;

-    onpointerover: (this: this, ev: PointerEvent) => any;

-    onpointerup: (this: this, ev: PointerEvent) => any;

-    onwheel: (this: this, ev: WheelEvent) => any;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    onpointercancel: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerdown: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerenter: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerleave: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointermove: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerout: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerover: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerup: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onwheel: (this: GlobalEventHandlers, ev: WheelEvent) => any;

+    addEventListener<K extends keyof GlobalEventHandlersEventMap>(type: K, listener: (this: GlobalEventHandlers, ev: GlobalEventHandlersEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13474,25 +12531,29 @@ interface LinkStyle {
     readonly sheet: StyleSheet;

 }

 

+interface MSBaseReaderEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+}

+

 interface MSBaseReader {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onabort: (this: MSBaseReader, ev: Event) => any;

+    onerror: (this: MSBaseReader, ev: ErrorEvent) => any;

+    onload: (this: MSBaseReader, ev: Event) => any;

+    onloadend: (this: MSBaseReader, ev: ProgressEvent) => any;

+    onloadstart: (this: MSBaseReader, ev: Event) => any;

+    onprogress: (this: MSBaseReader, ev: ProgressEvent) => any;

     readonly readyState: number;

     readonly result: any;

     abort(): void;

     readonly DONE: number;

     readonly EMPTY: number;

     readonly LOADING: number;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13541,359 +12602,9 @@ interface NavigatorUserMedia {
 }

 

 interface NodeSelector {

-    querySelector(selectors: "a"): HTMLAnchorElement | null;

-    querySelector(selectors: "abbr"): HTMLElement | null;

-    querySelector(selectors: "acronym"): HTMLElement | null;

-    querySelector(selectors: "address"): HTMLElement | null;

-    querySelector(selectors: "applet"): HTMLAppletElement | null;

-    querySelector(selectors: "area"): HTMLAreaElement | null;

-    querySelector(selectors: "article"): HTMLElement | null;

-    querySelector(selectors: "aside"): HTMLElement | null;

-    querySelector(selectors: "audio"): HTMLAudioElement | null;

-    querySelector(selectors: "b"): HTMLElement | null;

-    querySelector(selectors: "base"): HTMLBaseElement | null;

-    querySelector(selectors: "basefont"): HTMLBaseFontElement | null;

-    querySelector(selectors: "bdo"): HTMLElement | null;

-    querySelector(selectors: "big"): HTMLElement | null;

-    querySelector(selectors: "blockquote"): HTMLQuoteElement | null;

-    querySelector(selectors: "body"): HTMLBodyElement | null;

-    querySelector(selectors: "br"): HTMLBRElement | null;

-    querySelector(selectors: "button"): HTMLButtonElement | null;

-    querySelector(selectors: "canvas"): HTMLCanvasElement | null;

-    querySelector(selectors: "caption"): HTMLTableCaptionElement | null;

-    querySelector(selectors: "center"): HTMLElement | null;

-    querySelector(selectors: "circle"): SVGCircleElement | null;

-    querySelector(selectors: "cite"): HTMLElement | null;

-    querySelector(selectors: "clippath"): SVGClipPathElement | null;

-    querySelector(selectors: "code"): HTMLElement | null;

-    querySelector(selectors: "col"): HTMLTableColElement | null;

-    querySelector(selectors: "colgroup"): HTMLTableColElement | null;

-    querySelector(selectors: "datalist"): HTMLDataListElement | null;

-    querySelector(selectors: "dd"): HTMLElement | null;

-    querySelector(selectors: "defs"): SVGDefsElement | null;

-    querySelector(selectors: "del"): HTMLModElement | null;

-    querySelector(selectors: "desc"): SVGDescElement | null;

-    querySelector(selectors: "dfn"): HTMLElement | null;

-    querySelector(selectors: "dir"): HTMLDirectoryElement | null;

-    querySelector(selectors: "div"): HTMLDivElement | null;

-    querySelector(selectors: "dl"): HTMLDListElement | null;

-    querySelector(selectors: "dt"): HTMLElement | null;

-    querySelector(selectors: "ellipse"): SVGEllipseElement | null;

-    querySelector(selectors: "em"): HTMLElement | null;

-    querySelector(selectors: "embed"): HTMLEmbedElement | null;

-    querySelector(selectors: "feblend"): SVGFEBlendElement | null;

-    querySelector(selectors: "fecolormatrix"): SVGFEColorMatrixElement | null;

-    querySelector(selectors: "fecomponenttransfer"): SVGFEComponentTransferElement | null;

-    querySelector(selectors: "fecomposite"): SVGFECompositeElement | null;

-    querySelector(selectors: "feconvolvematrix"): SVGFEConvolveMatrixElement | null;

-    querySelector(selectors: "fediffuselighting"): SVGFEDiffuseLightingElement | null;

-    querySelector(selectors: "fedisplacementmap"): SVGFEDisplacementMapElement | null;

-    querySelector(selectors: "fedistantlight"): SVGFEDistantLightElement | null;

-    querySelector(selectors: "feflood"): SVGFEFloodElement | null;

-    querySelector(selectors: "fefunca"): SVGFEFuncAElement | null;

-    querySelector(selectors: "fefuncb"): SVGFEFuncBElement | null;

-    querySelector(selectors: "fefuncg"): SVGFEFuncGElement | null;

-    querySelector(selectors: "fefuncr"): SVGFEFuncRElement | null;

-    querySelector(selectors: "fegaussianblur"): SVGFEGaussianBlurElement | null;

-    querySelector(selectors: "feimage"): SVGFEImageElement | null;

-    querySelector(selectors: "femerge"): SVGFEMergeElement | null;

-    querySelector(selectors: "femergenode"): SVGFEMergeNodeElement | null;

-    querySelector(selectors: "femorphology"): SVGFEMorphologyElement | null;

-    querySelector(selectors: "feoffset"): SVGFEOffsetElement | null;

-    querySelector(selectors: "fepointlight"): SVGFEPointLightElement | null;

-    querySelector(selectors: "fespecularlighting"): SVGFESpecularLightingElement | null;

-    querySelector(selectors: "fespotlight"): SVGFESpotLightElement | null;

-    querySelector(selectors: "fetile"): SVGFETileElement | null;

-    querySelector(selectors: "feturbulence"): SVGFETurbulenceElement | null;

-    querySelector(selectors: "fieldset"): HTMLFieldSetElement | null;

-    querySelector(selectors: "figcaption"): HTMLElement | null;

-    querySelector(selectors: "figure"): HTMLElement | null;

-    querySelector(selectors: "filter"): SVGFilterElement | null;

-    querySelector(selectors: "font"): HTMLFontElement | null;

-    querySelector(selectors: "footer"): HTMLElement | null;

-    querySelector(selectors: "foreignobject"): SVGForeignObjectElement | null;

-    querySelector(selectors: "form"): HTMLFormElement | null;

-    querySelector(selectors: "frame"): HTMLFrameElement | null;

-    querySelector(selectors: "frameset"): HTMLFrameSetElement | null;

-    querySelector(selectors: "g"): SVGGElement | null;

-    querySelector(selectors: "h1"): HTMLHeadingElement | null;

-    querySelector(selectors: "h2"): HTMLHeadingElement | null;

-    querySelector(selectors: "h3"): HTMLHeadingElement | null;

-    querySelector(selectors: "h4"): HTMLHeadingElement | null;

-    querySelector(selectors: "h5"): HTMLHeadingElement | null;

-    querySelector(selectors: "h6"): HTMLHeadingElement | null;

-    querySelector(selectors: "head"): HTMLHeadElement | null;

-    querySelector(selectors: "header"): HTMLElement | null;

-    querySelector(selectors: "hgroup"): HTMLElement | null;

-    querySelector(selectors: "hr"): HTMLHRElement | null;

-    querySelector(selectors: "html"): HTMLHtmlElement | null;

-    querySelector(selectors: "i"): HTMLElement | null;

-    querySelector(selectors: "iframe"): HTMLIFrameElement | null;

-    querySelector(selectors: "image"): SVGImageElement | null;

-    querySelector(selectors: "img"): HTMLImageElement | null;

-    querySelector(selectors: "input"): HTMLInputElement | null;

-    querySelector(selectors: "ins"): HTMLModElement | null;

-    querySelector(selectors: "isindex"): HTMLUnknownElement | null;

-    querySelector(selectors: "kbd"): HTMLElement | null;

-    querySelector(selectors: "keygen"): HTMLElement | null;

-    querySelector(selectors: "label"): HTMLLabelElement | null;

-    querySelector(selectors: "legend"): HTMLLegendElement | null;

-    querySelector(selectors: "li"): HTMLLIElement | null;

-    querySelector(selectors: "line"): SVGLineElement | null;

-    querySelector(selectors: "lineargradient"): SVGLinearGradientElement | null;

-    querySelector(selectors: "link"): HTMLLinkElement | null;

-    querySelector(selectors: "listing"): HTMLPreElement | null;

-    querySelector(selectors: "map"): HTMLMapElement | null;

-    querySelector(selectors: "mark"): HTMLElement | null;

-    querySelector(selectors: "marker"): SVGMarkerElement | null;

-    querySelector(selectors: "marquee"): HTMLMarqueeElement | null;

-    querySelector(selectors: "mask"): SVGMaskElement | null;

-    querySelector(selectors: "menu"): HTMLMenuElement | null;

-    querySelector(selectors: "meta"): HTMLMetaElement | null;

-    querySelector(selectors: "metadata"): SVGMetadataElement | null;

-    querySelector(selectors: "meter"): HTMLMeterElement | null;

-    querySelector(selectors: "nav"): HTMLElement | null;

-    querySelector(selectors: "nextid"): HTMLUnknownElement | null;

-    querySelector(selectors: "nobr"): HTMLElement | null;

-    querySelector(selectors: "noframes"): HTMLElement | null;

-    querySelector(selectors: "noscript"): HTMLElement | null;

-    querySelector(selectors: "object"): HTMLObjectElement | null;

-    querySelector(selectors: "ol"): HTMLOListElement | null;

-    querySelector(selectors: "optgroup"): HTMLOptGroupElement | null;

-    querySelector(selectors: "option"): HTMLOptionElement | null;

-    querySelector(selectors: "p"): HTMLParagraphElement | null;

-    querySelector(selectors: "param"): HTMLParamElement | null;

-    querySelector(selectors: "path"): SVGPathElement | null;

-    querySelector(selectors: "pattern"): SVGPatternElement | null;

-    querySelector(selectors: "picture"): HTMLPictureElement | null;

-    querySelector(selectors: "plaintext"): HTMLElement | null;

-    querySelector(selectors: "polygon"): SVGPolygonElement | null;

-    querySelector(selectors: "polyline"): SVGPolylineElement | null;

-    querySelector(selectors: "pre"): HTMLPreElement | null;

-    querySelector(selectors: "progress"): HTMLProgressElement | null;

-    querySelector(selectors: "q"): HTMLQuoteElement | null;

-    querySelector(selectors: "radialgradient"): SVGRadialGradientElement | null;

-    querySelector(selectors: "rect"): SVGRectElement | null;

-    querySelector(selectors: "rt"): HTMLElement | null;

-    querySelector(selectors: "ruby"): HTMLElement | null;

-    querySelector(selectors: "s"): HTMLElement | null;

-    querySelector(selectors: "samp"): HTMLElement | null;

-    querySelector(selectors: "script"): HTMLScriptElement | null;

-    querySelector(selectors: "section"): HTMLElement | null;

-    querySelector(selectors: "select"): HTMLSelectElement | null;

-    querySelector(selectors: "small"): HTMLElement | null;

-    querySelector(selectors: "source"): HTMLSourceElement | null;

-    querySelector(selectors: "span"): HTMLSpanElement | null;

-    querySelector(selectors: "stop"): SVGStopElement | null;

-    querySelector(selectors: "strike"): HTMLElement | null;

-    querySelector(selectors: "strong"): HTMLElement | null;

-    querySelector(selectors: "style"): HTMLStyleElement | null;

-    querySelector(selectors: "sub"): HTMLElement | null;

-    querySelector(selectors: "sup"): HTMLElement | null;

-    querySelector(selectors: "svg"): SVGSVGElement | null;

-    querySelector(selectors: "switch"): SVGSwitchElement | null;

-    querySelector(selectors: "symbol"): SVGSymbolElement | null;

-    querySelector(selectors: "table"): HTMLTableElement | null;

-    querySelector(selectors: "tbody"): HTMLTableSectionElement | null;

-    querySelector(selectors: "td"): HTMLTableDataCellElement | null;

-    querySelector(selectors: "template"): HTMLTemplateElement | null;

-    querySelector(selectors: "text"): SVGTextElement | null;

-    querySelector(selectors: "textpath"): SVGTextPathElement | null;

-    querySelector(selectors: "textarea"): HTMLTextAreaElement | null;

-    querySelector(selectors: "tfoot"): HTMLTableSectionElement | null;

-    querySelector(selectors: "th"): HTMLTableHeaderCellElement | null;

-    querySelector(selectors: "thead"): HTMLTableSectionElement | null;

-    querySelector(selectors: "title"): HTMLTitleElement | null;

-    querySelector(selectors: "tr"): HTMLTableRowElement | null;

-    querySelector(selectors: "track"): HTMLTrackElement | null;

-    querySelector(selectors: "tspan"): SVGTSpanElement | null;

-    querySelector(selectors: "tt"): HTMLElement | null;

-    querySelector(selectors: "u"): HTMLElement | null;

-    querySelector(selectors: "ul"): HTMLUListElement | null;

-    querySelector(selectors: "use"): SVGUseElement | null;

-    querySelector(selectors: "var"): HTMLElement | null;

-    querySelector(selectors: "video"): HTMLVideoElement | null;

-    querySelector(selectors: "view"): SVGViewElement | null;

-    querySelector(selectors: "wbr"): HTMLElement | null;

-    querySelector(selectors: "x-ms-webview"): MSHTMLWebViewElement | null;

-    querySelector(selectors: "xmp"): HTMLPreElement | null;

+    querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | null;

     querySelector(selectors: string): Element | null;

-    querySelectorAll(selectors: "a"): NodeListOf<HTMLAnchorElement>;

-    querySelectorAll(selectors: "abbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "acronym"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "address"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "applet"): NodeListOf<HTMLAppletElement>;

-    querySelectorAll(selectors: "area"): NodeListOf<HTMLAreaElement>;

-    querySelectorAll(selectors: "article"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "aside"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "audio"): NodeListOf<HTMLAudioElement>;

-    querySelectorAll(selectors: "b"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "base"): NodeListOf<HTMLBaseElement>;

-    querySelectorAll(selectors: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    querySelectorAll(selectors: "bdo"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "big"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "body"): NodeListOf<HTMLBodyElement>;

-    querySelectorAll(selectors: "br"): NodeListOf<HTMLBRElement>;

-    querySelectorAll(selectors: "button"): NodeListOf<HTMLButtonElement>;

-    querySelectorAll(selectors: "canvas"): NodeListOf<HTMLCanvasElement>;

-    querySelectorAll(selectors: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    querySelectorAll(selectors: "center"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "circle"): NodeListOf<SVGCircleElement>;

-    querySelectorAll(selectors: "cite"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "clippath"): NodeListOf<SVGClipPathElement>;

-    querySelectorAll(selectors: "code"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "col"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "colgroup"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "datalist"): NodeListOf<HTMLDataListElement>;

-    querySelectorAll(selectors: "dd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "defs"): NodeListOf<SVGDefsElement>;

-    querySelectorAll(selectors: "del"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "desc"): NodeListOf<SVGDescElement>;

-    querySelectorAll(selectors: "dfn"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "dir"): NodeListOf<HTMLDirectoryElement>;

-    querySelectorAll(selectors: "div"): NodeListOf<HTMLDivElement>;

-    querySelectorAll(selectors: "dl"): NodeListOf<HTMLDListElement>;

-    querySelectorAll(selectors: "dt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ellipse"): NodeListOf<SVGEllipseElement>;

-    querySelectorAll(selectors: "em"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "embed"): NodeListOf<HTMLEmbedElement>;

-    querySelectorAll(selectors: "feblend"): NodeListOf<SVGFEBlendElement>;

-    querySelectorAll(selectors: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    querySelectorAll(selectors: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    querySelectorAll(selectors: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    querySelectorAll(selectors: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    querySelectorAll(selectors: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    querySelectorAll(selectors: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    querySelectorAll(selectors: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    querySelectorAll(selectors: "feflood"): NodeListOf<SVGFEFloodElement>;

-    querySelectorAll(selectors: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    querySelectorAll(selectors: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    querySelectorAll(selectors: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    querySelectorAll(selectors: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    querySelectorAll(selectors: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    querySelectorAll(selectors: "feimage"): NodeListOf<SVGFEImageElement>;

-    querySelectorAll(selectors: "femerge"): NodeListOf<SVGFEMergeElement>;

-    querySelectorAll(selectors: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    querySelectorAll(selectors: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    querySelectorAll(selectors: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    querySelectorAll(selectors: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    querySelectorAll(selectors: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    querySelectorAll(selectors: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    querySelectorAll(selectors: "fetile"): NodeListOf<SVGFETileElement>;

-    querySelectorAll(selectors: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    querySelectorAll(selectors: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    querySelectorAll(selectors: "figcaption"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "figure"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "filter"): NodeListOf<SVGFilterElement>;

-    querySelectorAll(selectors: "font"): NodeListOf<HTMLFontElement>;

-    querySelectorAll(selectors: "footer"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    querySelectorAll(selectors: "form"): NodeListOf<HTMLFormElement>;

-    querySelectorAll(selectors: "frame"): NodeListOf<HTMLFrameElement>;

-    querySelectorAll(selectors: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    querySelectorAll(selectors: "g"): NodeListOf<SVGGElement>;

-    querySelectorAll(selectors: "h1"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h2"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h3"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h4"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h5"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h6"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "head"): NodeListOf<HTMLHeadElement>;

-    querySelectorAll(selectors: "header"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hgroup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hr"): NodeListOf<HTMLHRElement>;

-    querySelectorAll(selectors: "html"): NodeListOf<HTMLHtmlElement>;

-    querySelectorAll(selectors: "i"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "iframe"): NodeListOf<HTMLIFrameElement>;

-    querySelectorAll(selectors: "image"): NodeListOf<SVGImageElement>;

-    querySelectorAll(selectors: "img"): NodeListOf<HTMLImageElement>;

-    querySelectorAll(selectors: "input"): NodeListOf<HTMLInputElement>;

-    querySelectorAll(selectors: "ins"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "isindex"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "kbd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "keygen"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "label"): NodeListOf<HTMLLabelElement>;

-    querySelectorAll(selectors: "legend"): NodeListOf<HTMLLegendElement>;

-    querySelectorAll(selectors: "li"): NodeListOf<HTMLLIElement>;

-    querySelectorAll(selectors: "line"): NodeListOf<SVGLineElement>;

-    querySelectorAll(selectors: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    querySelectorAll(selectors: "link"): NodeListOf<HTMLLinkElement>;

-    querySelectorAll(selectors: "listing"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "map"): NodeListOf<HTMLMapElement>;

-    querySelectorAll(selectors: "mark"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "marker"): NodeListOf<SVGMarkerElement>;

-    querySelectorAll(selectors: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    querySelectorAll(selectors: "mask"): NodeListOf<SVGMaskElement>;

-    querySelectorAll(selectors: "menu"): NodeListOf<HTMLMenuElement>;

-    querySelectorAll(selectors: "meta"): NodeListOf<HTMLMetaElement>;

-    querySelectorAll(selectors: "metadata"): NodeListOf<SVGMetadataElement>;

-    querySelectorAll(selectors: "meter"): NodeListOf<HTMLMeterElement>;

-    querySelectorAll(selectors: "nav"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "nextid"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "nobr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noframes"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noscript"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "object"): NodeListOf<HTMLObjectElement>;

-    querySelectorAll(selectors: "ol"): NodeListOf<HTMLOListElement>;

-    querySelectorAll(selectors: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    querySelectorAll(selectors: "option"): NodeListOf<HTMLOptionElement>;

-    querySelectorAll(selectors: "p"): NodeListOf<HTMLParagraphElement>;

-    querySelectorAll(selectors: "param"): NodeListOf<HTMLParamElement>;

-    querySelectorAll(selectors: "path"): NodeListOf<SVGPathElement>;

-    querySelectorAll(selectors: "pattern"): NodeListOf<SVGPatternElement>;

-    querySelectorAll(selectors: "picture"): NodeListOf<HTMLPictureElement>;

-    querySelectorAll(selectors: "plaintext"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "polygon"): NodeListOf<SVGPolygonElement>;

-    querySelectorAll(selectors: "polyline"): NodeListOf<SVGPolylineElement>;

-    querySelectorAll(selectors: "pre"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "progress"): NodeListOf<HTMLProgressElement>;

-    querySelectorAll(selectors: "q"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    querySelectorAll(selectors: "rect"): NodeListOf<SVGRectElement>;

-    querySelectorAll(selectors: "rt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ruby"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "s"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "samp"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "script"): NodeListOf<HTMLScriptElement>;

-    querySelectorAll(selectors: "section"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "select"): NodeListOf<HTMLSelectElement>;

-    querySelectorAll(selectors: "small"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "source"): NodeListOf<HTMLSourceElement>;

-    querySelectorAll(selectors: "span"): NodeListOf<HTMLSpanElement>;

-    querySelectorAll(selectors: "stop"): NodeListOf<SVGStopElement>;

-    querySelectorAll(selectors: "strike"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "strong"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "style"): NodeListOf<HTMLStyleElement>;

-    querySelectorAll(selectors: "sub"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "sup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "svg"): NodeListOf<SVGSVGElement>;

-    querySelectorAll(selectors: "switch"): NodeListOf<SVGSwitchElement>;

-    querySelectorAll(selectors: "symbol"): NodeListOf<SVGSymbolElement>;

-    querySelectorAll(selectors: "table"): NodeListOf<HTMLTableElement>;

-    querySelectorAll(selectors: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "td"): NodeListOf<HTMLTableDataCellElement>;

-    querySelectorAll(selectors: "template"): NodeListOf<HTMLTemplateElement>;

-    querySelectorAll(selectors: "text"): NodeListOf<SVGTextElement>;

-    querySelectorAll(selectors: "textpath"): NodeListOf<SVGTextPathElement>;

-    querySelectorAll(selectors: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    querySelectorAll(selectors: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    querySelectorAll(selectors: "thead"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "title"): NodeListOf<HTMLTitleElement>;

-    querySelectorAll(selectors: "tr"): NodeListOf<HTMLTableRowElement>;

-    querySelectorAll(selectors: "track"): NodeListOf<HTMLTrackElement>;

-    querySelectorAll(selectors: "tspan"): NodeListOf<SVGTSpanElement>;

-    querySelectorAll(selectors: "tt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "u"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ul"): NodeListOf<HTMLUListElement>;

-    querySelectorAll(selectors: "use"): NodeListOf<SVGUseElement>;

-    querySelectorAll(selectors: "var"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "video"): NodeListOf<HTMLVideoElement>;

-    querySelectorAll(selectors: "view"): NodeListOf<SVGViewElement>;

-    querySelectorAll(selectors: "wbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    querySelectorAll(selectors: "xmp"): NodeListOf<HTMLPreElement>;

+    querySelectorAll<K extends keyof ElementListTagNameMap>(selectors: K): ElementListTagNameMap[K];

     querySelectorAll(selectors: string): NodeListOf<Element>;

 }

 

@@ -13993,21 +12704,25 @@ interface WindowTimersExtension {
     setImmediate(handler: any, ...args: any[]): number;

 }

 

+interface XMLHttpRequestEventTargetEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+    "timeout": ProgressEvent;

+}

+

 interface XMLHttpRequestEventTarget {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    ontimeout: (this: this, ev: ProgressEvent) => any;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    onabort: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onerror: (this: XMLHttpRequestEventTarget, ev: ErrorEvent) => any;

+    onload: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onloadend: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    onloadstart: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onprogress: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    ontimeout: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14267,6 +12982,33 @@ interface ParentNode {
     readonly childElementCount: number;

 }

 

+interface DocumentOrShadowRoot {

+    readonly activeElement: Element | null;

+    readonly stylesheets: StyleSheetList;

+    getSelection(): Selection | null;

+    elementFromPoint(x: number, y: number): Element | null;

+    elementsFromPoint(x: number, y: number): Element[];

+}

+

+interface ShadowRoot extends DocumentOrShadowRoot, DocumentFragment {

+    readonly host: Element;

+    innerHTML: string;

+}

+

+interface ShadowRootInit {

+    mode: 'open'|'closed';

+    delegatesFocus?: boolean;

+}

+

+interface HTMLSlotElement extends HTMLElement {

+    name: string;

+    assignedNodes(options?: AssignedNodesOptions): Node[];

+}

+

+interface AssignedNodesOptions {

+    flatten?: boolean;

+}

+

 declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;

 

 interface ErrorEventHandler {

@@ -14314,6 +13056,447 @@ interface NavigatorUserMediaErrorCallback {
 interface ForEachCallback {

     (keyId: any, status: string): void;

 }

+interface HTMLElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "audio": HTMLAudioElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "del": HTMLModElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "embed": HTMLEmbedElement;

+    "fieldset": HTMLFieldSetElement;

+    "font": HTMLFontElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "iframe": HTMLIFrameElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "marquee": HTMLMarqueeElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "meter": HTMLMeterElement;

+    "nextid": HTMLUnknownElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "picture": HTMLPictureElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "script": HTMLScriptElement;

+    "select": HTMLSelectElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "style": HTMLStyleElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "ul": HTMLUListElement;

+    "video": HTMLVideoElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "abbr": HTMLElement;

+    "acronym": HTMLElement;

+    "address": HTMLElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "article": HTMLElement;

+    "aside": HTMLElement;

+    "audio": HTMLAudioElement;

+    "b": HTMLElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "bdo": HTMLElement;

+    "big": HTMLElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "center": HTMLElement;

+    "circle": SVGCircleElement;

+    "cite": HTMLElement;

+    "clippath": SVGClipPathElement;

+    "code": HTMLElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "dd": HTMLElement;

+    "defs": SVGDefsElement;

+    "del": HTMLModElement;

+    "desc": SVGDescElement;

+    "dfn": HTMLElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "dt": HTMLElement;

+    "ellipse": SVGEllipseElement;

+    "em": HTMLElement;

+    "embed": HTMLEmbedElement;

+    "feblend": SVGFEBlendElement;

+    "fecolormatrix": SVGFEColorMatrixElement;

+    "fecomponenttransfer": SVGFEComponentTransferElement;

+    "fecomposite": SVGFECompositeElement;

+    "feconvolvematrix": SVGFEConvolveMatrixElement;

+    "fediffuselighting": SVGFEDiffuseLightingElement;

+    "fedisplacementmap": SVGFEDisplacementMapElement;

+    "fedistantlight": SVGFEDistantLightElement;

+    "feflood": SVGFEFloodElement;

+    "fefunca": SVGFEFuncAElement;

+    "fefuncb": SVGFEFuncBElement;

+    "fefuncg": SVGFEFuncGElement;

+    "fefuncr": SVGFEFuncRElement;

+    "fegaussianblur": SVGFEGaussianBlurElement;

+    "feimage": SVGFEImageElement;

+    "femerge": SVGFEMergeElement;

+    "femergenode": SVGFEMergeNodeElement;

+    "femorphology": SVGFEMorphologyElement;

+    "feoffset": SVGFEOffsetElement;

+    "fepointlight": SVGFEPointLightElement;

+    "fespecularlighting": SVGFESpecularLightingElement;

+    "fespotlight": SVGFESpotLightElement;

+    "fetile": SVGFETileElement;

+    "feturbulence": SVGFETurbulenceElement;

+    "fieldset": HTMLFieldSetElement;

+    "figcaption": HTMLElement;

+    "figure": HTMLElement;

+    "filter": SVGFilterElement;

+    "font": HTMLFontElement;

+    "footer": HTMLElement;

+    "foreignobject": SVGForeignObjectElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "g": SVGGElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "header": HTMLElement;

+    "hgroup": HTMLElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "i": HTMLElement;

+    "iframe": HTMLIFrameElement;

+    "image": SVGImageElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "kbd": HTMLElement;

+    "keygen": HTMLElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "line": SVGLineElement;

+    "lineargradient": SVGLinearGradientElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "mark": HTMLElement;

+    "marker": SVGMarkerElement;

+    "marquee": HTMLMarqueeElement;

+    "mask": SVGMaskElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "metadata": SVGMetadataElement;

+    "meter": HTMLMeterElement;

+    "nav": HTMLElement;

+    "nextid": HTMLUnknownElement;

+    "nobr": HTMLElement;

+    "noframes": HTMLElement;

+    "noscript": HTMLElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "path": SVGPathElement;

+    "pattern": SVGPatternElement;

+    "picture": HTMLPictureElement;

+    "plaintext": HTMLElement;

+    "polygon": SVGPolygonElement;

+    "polyline": SVGPolylineElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "radialgradient": SVGRadialGradientElement;

+    "rect": SVGRectElement;

+    "rt": HTMLElement;

+    "ruby": HTMLElement;

+    "s": HTMLElement;

+    "samp": HTMLElement;

+    "script": HTMLScriptElement;

+    "section": HTMLElement;

+    "select": HTMLSelectElement;

+    "small": HTMLElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "stop": SVGStopElement;

+    "strike": HTMLElement;

+    "strong": HTMLElement;

+    "style": HTMLStyleElement;

+    "sub": HTMLElement;

+    "sup": HTMLElement;

+    "svg": SVGSVGElement;

+    "switch": SVGSwitchElement;

+    "symbol": SVGSymbolElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "text": SVGTextElement;

+    "textpath": SVGTextPathElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "tspan": SVGTSpanElement;

+    "tt": HTMLElement;

+    "u": HTMLElement;

+    "ul": HTMLUListElement;

+    "use": SVGUseElement;

+    "var": HTMLElement;

+    "video": HTMLVideoElement;

+    "view": SVGViewElement;

+    "wbr": HTMLElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementListTagNameMap {

+    "a": NodeListOf<HTMLAnchorElement>;

+    "abbr": NodeListOf<HTMLElement>;

+    "acronym": NodeListOf<HTMLElement>;

+    "address": NodeListOf<HTMLElement>;

+    "applet": NodeListOf<HTMLAppletElement>;

+    "area": NodeListOf<HTMLAreaElement>;

+    "article": NodeListOf<HTMLElement>;

+    "aside": NodeListOf<HTMLElement>;

+    "audio": NodeListOf<HTMLAudioElement>;

+    "b": NodeListOf<HTMLElement>;

+    "base": NodeListOf<HTMLBaseElement>;

+    "basefont": NodeListOf<HTMLBaseFontElement>;

+    "bdo": NodeListOf<HTMLElement>;

+    "big": NodeListOf<HTMLElement>;

+    "blockquote": NodeListOf<HTMLQuoteElement>;

+    "body": NodeListOf<HTMLBodyElement>;

+    "br": NodeListOf<HTMLBRElement>;

+    "button": NodeListOf<HTMLButtonElement>;

+    "canvas": NodeListOf<HTMLCanvasElement>;

+    "caption": NodeListOf<HTMLTableCaptionElement>;

+    "center": NodeListOf<HTMLElement>;

+    "circle": NodeListOf<SVGCircleElement>;

+    "cite": NodeListOf<HTMLElement>;

+    "clippath": NodeListOf<SVGClipPathElement>;

+    "code": NodeListOf<HTMLElement>;

+    "col": NodeListOf<HTMLTableColElement>;

+    "colgroup": NodeListOf<HTMLTableColElement>;

+    "datalist": NodeListOf<HTMLDataListElement>;

+    "dd": NodeListOf<HTMLElement>;

+    "defs": NodeListOf<SVGDefsElement>;

+    "del": NodeListOf<HTMLModElement>;

+    "desc": NodeListOf<SVGDescElement>;

+    "dfn": NodeListOf<HTMLElement>;

+    "dir": NodeListOf<HTMLDirectoryElement>;

+    "div": NodeListOf<HTMLDivElement>;

+    "dl": NodeListOf<HTMLDListElement>;

+    "dt": NodeListOf<HTMLElement>;

+    "ellipse": NodeListOf<SVGEllipseElement>;

+    "em": NodeListOf<HTMLElement>;

+    "embed": NodeListOf<HTMLEmbedElement>;

+    "feblend": NodeListOf<SVGFEBlendElement>;

+    "fecolormatrix": NodeListOf<SVGFEColorMatrixElement>;

+    "fecomponenttransfer": NodeListOf<SVGFEComponentTransferElement>;

+    "fecomposite": NodeListOf<SVGFECompositeElement>;

+    "feconvolvematrix": NodeListOf<SVGFEConvolveMatrixElement>;

+    "fediffuselighting": NodeListOf<SVGFEDiffuseLightingElement>;

+    "fedisplacementmap": NodeListOf<SVGFEDisplacementMapElement>;

+    "fedistantlight": NodeListOf<SVGFEDistantLightElement>;

+    "feflood": NodeListOf<SVGFEFloodElement>;

+    "fefunca": NodeListOf<SVGFEFuncAElement>;

+    "fefuncb": NodeListOf<SVGFEFuncBElement>;

+    "fefuncg": NodeListOf<SVGFEFuncGElement>;

+    "fefuncr": NodeListOf<SVGFEFuncRElement>;

+    "fegaussianblur": NodeListOf<SVGFEGaussianBlurElement>;

+    "feimage": NodeListOf<SVGFEImageElement>;

+    "femerge": NodeListOf<SVGFEMergeElement>;

+    "femergenode": NodeListOf<SVGFEMergeNodeElement>;

+    "femorphology": NodeListOf<SVGFEMorphologyElement>;

+    "feoffset": NodeListOf<SVGFEOffsetElement>;

+    "fepointlight": NodeListOf<SVGFEPointLightElement>;

+    "fespecularlighting": NodeListOf<SVGFESpecularLightingElement>;

+    "fespotlight": NodeListOf<SVGFESpotLightElement>;

+    "fetile": NodeListOf<SVGFETileElement>;

+    "feturbulence": NodeListOf<SVGFETurbulenceElement>;

+    "fieldset": NodeListOf<HTMLFieldSetElement>;

+    "figcaption": NodeListOf<HTMLElement>;

+    "figure": NodeListOf<HTMLElement>;

+    "filter": NodeListOf<SVGFilterElement>;

+    "font": NodeListOf<HTMLFontElement>;

+    "footer": NodeListOf<HTMLElement>;

+    "foreignobject": NodeListOf<SVGForeignObjectElement>;

+    "form": NodeListOf<HTMLFormElement>;

+    "frame": NodeListOf<HTMLFrameElement>;

+    "frameset": NodeListOf<HTMLFrameSetElement>;

+    "g": NodeListOf<SVGGElement>;

+    "h1": NodeListOf<HTMLHeadingElement>;

+    "h2": NodeListOf<HTMLHeadingElement>;

+    "h3": NodeListOf<HTMLHeadingElement>;

+    "h4": NodeListOf<HTMLHeadingElement>;

+    "h5": NodeListOf<HTMLHeadingElement>;

+    "h6": NodeListOf<HTMLHeadingElement>;

+    "head": NodeListOf<HTMLHeadElement>;

+    "header": NodeListOf<HTMLElement>;

+    "hgroup": NodeListOf<HTMLElement>;

+    "hr": NodeListOf<HTMLHRElement>;

+    "html": NodeListOf<HTMLHtmlElement>;

+    "i": NodeListOf<HTMLElement>;

+    "iframe": NodeListOf<HTMLIFrameElement>;

+    "image": NodeListOf<SVGImageElement>;

+    "img": NodeListOf<HTMLImageElement>;

+    "input": NodeListOf<HTMLInputElement>;

+    "ins": NodeListOf<HTMLModElement>;

+    "isindex": NodeListOf<HTMLUnknownElement>;

+    "kbd": NodeListOf<HTMLElement>;

+    "keygen": NodeListOf<HTMLElement>;

+    "label": NodeListOf<HTMLLabelElement>;

+    "legend": NodeListOf<HTMLLegendElement>;

+    "li": NodeListOf<HTMLLIElement>;

+    "line": NodeListOf<SVGLineElement>;

+    "lineargradient": NodeListOf<SVGLinearGradientElement>;

+    "link": NodeListOf<HTMLLinkElement>;

+    "listing": NodeListOf<HTMLPreElement>;

+    "map": NodeListOf<HTMLMapElement>;

+    "mark": NodeListOf<HTMLElement>;

+    "marker": NodeListOf<SVGMarkerElement>;

+    "marquee": NodeListOf<HTMLMarqueeElement>;

+    "mask": NodeListOf<SVGMaskElement>;

+    "menu": NodeListOf<HTMLMenuElement>;

+    "meta": NodeListOf<HTMLMetaElement>;

+    "metadata": NodeListOf<SVGMetadataElement>;

+    "meter": NodeListOf<HTMLMeterElement>;

+    "nav": NodeListOf<HTMLElement>;

+    "nextid": NodeListOf<HTMLUnknownElement>;

+    "nobr": NodeListOf<HTMLElement>;

+    "noframes": NodeListOf<HTMLElement>;

+    "noscript": NodeListOf<HTMLElement>;

+    "object": NodeListOf<HTMLObjectElement>;

+    "ol": NodeListOf<HTMLOListElement>;

+    "optgroup": NodeListOf<HTMLOptGroupElement>;

+    "option": NodeListOf<HTMLOptionElement>;

+    "p": NodeListOf<HTMLParagraphElement>;

+    "param": NodeListOf<HTMLParamElement>;

+    "path": NodeListOf<SVGPathElement>;

+    "pattern": NodeListOf<SVGPatternElement>;

+    "picture": NodeListOf<HTMLPictureElement>;

+    "plaintext": NodeListOf<HTMLElement>;

+    "polygon": NodeListOf<SVGPolygonElement>;

+    "polyline": NodeListOf<SVGPolylineElement>;

+    "pre": NodeListOf<HTMLPreElement>;

+    "progress": NodeListOf<HTMLProgressElement>;

+    "q": NodeListOf<HTMLQuoteElement>;

+    "radialgradient": NodeListOf<SVGRadialGradientElement>;

+    "rect": NodeListOf<SVGRectElement>;

+    "rt": NodeListOf<HTMLElement>;

+    "ruby": NodeListOf<HTMLElement>;

+    "s": NodeListOf<HTMLElement>;

+    "samp": NodeListOf<HTMLElement>;

+    "script": NodeListOf<HTMLScriptElement>;

+    "section": NodeListOf<HTMLElement>;

+    "select": NodeListOf<HTMLSelectElement>;

+    "small": NodeListOf<HTMLElement>;

+    "source": NodeListOf<HTMLSourceElement>;

+    "span": NodeListOf<HTMLSpanElement>;

+    "stop": NodeListOf<SVGStopElement>;

+    "strike": NodeListOf<HTMLElement>;

+    "strong": NodeListOf<HTMLElement>;

+    "style": NodeListOf<HTMLStyleElement>;

+    "sub": NodeListOf<HTMLElement>;

+    "sup": NodeListOf<HTMLElement>;

+    "svg": NodeListOf<SVGSVGElement>;

+    "switch": NodeListOf<SVGSwitchElement>;

+    "symbol": NodeListOf<SVGSymbolElement>;

+    "table": NodeListOf<HTMLTableElement>;

+    "tbody": NodeListOf<HTMLTableSectionElement>;

+    "td": NodeListOf<HTMLTableDataCellElement>;

+    "template": NodeListOf<HTMLTemplateElement>;

+    "text": NodeListOf<SVGTextElement>;

+    "textpath": NodeListOf<SVGTextPathElement>;

+    "textarea": NodeListOf<HTMLTextAreaElement>;

+    "tfoot": NodeListOf<HTMLTableSectionElement>;

+    "th": NodeListOf<HTMLTableHeaderCellElement>;

+    "thead": NodeListOf<HTMLTableSectionElement>;

+    "title": NodeListOf<HTMLTitleElement>;

+    "tr": NodeListOf<HTMLTableRowElement>;

+    "track": NodeListOf<HTMLTrackElement>;

+    "tspan": NodeListOf<SVGTSpanElement>;

+    "tt": NodeListOf<HTMLElement>;

+    "u": NodeListOf<HTMLElement>;

+    "ul": NodeListOf<HTMLUListElement>;

+    "use": NodeListOf<SVGUseElement>;

+    "var": NodeListOf<HTMLElement>;

+    "video": NodeListOf<HTMLVideoElement>;

+    "view": NodeListOf<SVGViewElement>;

+    "wbr": NodeListOf<HTMLElement>;

+    "x-ms-webview": NodeListOf<MSHTMLWebViewElement>;

+    "xmp": NodeListOf<HTMLPreElement>;

+}

+

 declare var Audio: {new(src?: string): HTMLAudioElement; };

 declare var Image: {new(width?: number, height?: number): HTMLImageElement; };

 declare var Option: {new(text?: string, value?: string, defaultSelected?: boolean, selected?: boolean): HTMLOptionElement; };

@@ -14488,7 +13671,6 @@ declare function scroll(options?: ScrollToOptions): void;
 declare function scrollTo(options?: ScrollToOptions): void;

 declare function scrollBy(options?: ScrollToOptions): void;

 declare function toString(): string;

-declare function addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function dispatchEvent(evt: Event): boolean;

 declare function removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function clearInterval(handle: number): void;

@@ -14515,101 +13697,7 @@ declare var onwheel: (this: Window, ev: WheelEvent) => any;
 declare var indexedDB: IDBFactory;

 declare function atob(encodedString: string): string;

 declare function btoa(rawString: string): string;

-declare function addEventListener(type: "MSGestureChange", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureDoubleTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureEnd", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureHold", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSInertiaStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerCancel", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerDown", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerEnter", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerLeave", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerMove", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOut", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOver", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerUp", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "abort", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "afterprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeunload", listener: (this: Window, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "blur", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplay", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplaythrough", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "change", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "click", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "compassneedscalibration", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "contextmenu", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dblclick", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicelight", listener: (this: Window, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicemotion", listener: (this: Window, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "deviceorientation", listener: (this: Window, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drag", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragend", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragenter", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragleave", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragover", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragstart", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drop", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "durationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "emptied", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ended", listener: (this: Window, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "focus", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "hashchange", listener: (this: Window, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "input", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "invalid", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keydown", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keypress", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keyup", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "load", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadeddata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadedmetadata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadstart", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "message", listener: (this: Window, ev: MessageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousedown", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseenter", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseleave", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousemove", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseout", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseover", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseup", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousewheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "offline", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "online", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "orientationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pagehide", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pageshow", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pause", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "play", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "playing", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointercancel", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerdown", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerenter", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerleave", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointermove", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerout", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerover", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerup", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "popstate", listener: (this: Window, ev: PopStateEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "progress", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ratechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "readystatechange", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "reset", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "resize", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "scroll", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeked", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeking", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "select", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "stalled", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "storage", listener: (this: Window, ev: StorageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "submit", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "suspend", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "timeupdate", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "unload", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "volumechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "waiting", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "wheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

+declare function addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

 declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 type AAGUID = string;

 type AlgorithmIdentifier = string | Algorithm;

diff --git a/node_modules/typescript/lib/lib.es2015.core.d.ts b/node_modules/typescript/lib/lib.es2015.core.d.ts
index 82e2761b7..499d0de52 100644
--- a/node_modules/typescript/lib/lib.es2015.core.d.ts
+++ b/node_modules/typescript/lib/lib.es2015.core.d.ts
@@ -225,13 +225,13 @@ interface NumberConstructor {
       * number. Only finite values of the type number, result in true.

       * @param number A numeric value.

       */

-    isFinite(value: any): value is number;

+    isFinite(number: number): boolean;

 

     /**

       * Returns true if the value passed is an integer, false otherwise.

       * @param number A numeric value.

       */

-    isInteger(value: any): value is number;

+    isInteger(number: number): boolean;

 

     /**

       * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a

@@ -239,13 +239,13 @@ interface NumberConstructor {
       * to a number. Only values of the type number, that are also NaN, result in true.

       * @param number A numeric value.

       */

-    isNaN(value: any): value is number;

+    isNaN(number: number): boolean;

 

     /**

       * Returns true if the value passed is a safe integer.

       * @param number A numeric value.

       */

-    isSafeInteger(value: any): value is number;

+    isSafeInteger(number: number): boolean;

 

     /**

       * The value of the largest integer n such that n and n + 1 are both exactly representable as

diff --git a/node_modules/typescript/lib/lib.es5.d.ts b/node_modules/typescript/lib/lib.es5.d.ts
index 2cf3f7425..8e8b3b1b8 100644
--- a/node_modules/typescript/lib/lib.es5.d.ts
+++ b/node_modules/typescript/lib/lib.es5.d.ts
@@ -200,7 +200,19 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

       * @param o Object on which to lock the attributes.

       */

-    freeze<T>(o: T): T;

+    freeze<T>(a: T[]): ReadonlyArray<T>;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T extends Function>(f: T): T;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T>(o: T): Readonly<T>;

 

     /**

       * Prevents the addition of new properties to an object.

@@ -1364,6 +1376,34 @@ interface ArrayLike<T> {
 }

 

 /**

+ * Make all properties in T optional

+ */

+type Partial<T> = {

+    [P in keyof T]?: T[P];

+};

+

+/**

+ * Make all properties in T readonly

+ */

+type Readonly<T> = {

+    readonly [P in keyof T]: T[P];

+};

+

+/**

+ * From T pick a set of properties K

+ */

+type Pick<T, K extends keyof T> = {

+    [P in K]: T[P];

+}

+

+/**

+ * Construct a type with a set of properties K of type T

+ */

+type Record<K extends string, T> = {

+    [P in K]: T;

+}

+

+/**

   * Represents a raw buffer of binary data, which is used to store data for the

   * different typed arrays. ArrayBuffers cannot be read from or written to directly,

   * but can be passed to a typed array or DataView Object to interpret the raw

diff --git a/node_modules/typescript/lib/lib.es6.d.ts b/node_modules/typescript/lib/lib.es6.d.ts
index 27a57bd91..e2b9565d8 100644
--- a/node_modules/typescript/lib/lib.es6.d.ts
+++ b/node_modules/typescript/lib/lib.es6.d.ts
@@ -200,7 +200,19 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

       * @param o Object on which to lock the attributes.

       */

-    freeze<T>(o: T): T;

+    freeze<T>(a: T[]): ReadonlyArray<T>;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T extends Function>(f: T): T;

+

+    /**

+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.

+      * @param o Object on which to lock the attributes.

+      */

+    freeze<T>(o: T): Readonly<T>;

 

     /**

       * Prevents the addition of new properties to an object.

@@ -1364,6 +1376,34 @@ interface ArrayLike<T> {
 }

 

 /**

+ * Make all properties in T optional

+ */

+type Partial<T> = {

+    [P in keyof T]?: T[P];

+};

+

+/**

+ * Make all properties in T readonly

+ */

+type Readonly<T> = {

+    readonly [P in keyof T]: T[P];

+};

+

+/**

+ * From T pick a set of properties K

+ */

+type Pick<T, K extends keyof T> = {

+    [P in K]: T[P];

+}

+

+/**

+ * Construct a type with a set of properties K of type T

+ */

+type Record<K extends string, T> = {

+    [P in K]: T;

+}

+

+/**

   * Represents a raw buffer of binary data, which is used to store data for the

   * different typed arrays. ArrayBuffers cannot be read from or written to directly,

   * but can be passed to a typed array or DataView Object to interpret the raw

@@ -4362,13 +4402,13 @@ interface NumberConstructor {
       * number. Only finite values of the type number, result in true.

       * @param number A numeric value.

       */

-    isFinite(value: any): value is number;

+    isFinite(number: number): boolean;

 

     /**

       * Returns true if the value passed is an integer, false otherwise.

       * @param number A numeric value.

       */

-    isInteger(value: any): value is number;

+    isInteger(number: number): boolean;

 

     /**

       * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a

@@ -4376,13 +4416,13 @@ interface NumberConstructor {
       * to a number. Only values of the type number, that are also NaN, result in true.

       * @param number A numeric value.

       */

-    isNaN(value: any): value is number;

+    isNaN(number: number): boolean;

 

     /**

       * Returns true if the value passed is a safe integer.

       * @param number A numeric value.

       */

-    isSafeInteger(value: any): value is number;

+    isSafeInteger(number: number): boolean;

 

     /**

       * The value of the largest integer n such that n and n + 1 are both exactly representable as

@@ -5953,6 +5993,7 @@ interface DoubleRange {
 }

 

 interface EventInit {

+    scoped?: boolean;

     bubbles?: boolean;

     cancelable?: boolean;

 }

@@ -6794,15 +6835,26 @@ declare var AnimationEvent: {
     new(): AnimationEvent;

 }

 

+interface ApplicationCacheEventMap {

+    "cached": Event;

+    "checking": Event;

+    "downloading": Event;

+    "error": ErrorEvent;

+    "noupdate": Event;

+    "obsolete": Event;

+    "progress": ProgressEvent;

+    "updateready": Event;

+}

+

 interface ApplicationCache extends EventTarget {

-    oncached: (this: this, ev: Event) => any;

-    onchecking: (this: this, ev: Event) => any;

-    ondownloading: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onnoupdate: (this: this, ev: Event) => any;

-    onobsolete: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onupdateready: (this: this, ev: Event) => any;

+    oncached: (this: ApplicationCache, ev: Event) => any;

+    onchecking: (this: ApplicationCache, ev: Event) => any;

+    ondownloading: (this: ApplicationCache, ev: Event) => any;

+    onerror: (this: ApplicationCache, ev: ErrorEvent) => any;

+    onnoupdate: (this: ApplicationCache, ev: Event) => any;

+    onobsolete: (this: ApplicationCache, ev: Event) => any;

+    onprogress: (this: ApplicationCache, ev: ProgressEvent) => any;

+    onupdateready: (this: ApplicationCache, ev: Event) => any;

     readonly status: number;

     abort(): void;

     swapCache(): void;

@@ -6813,14 +6865,7 @@ interface ApplicationCache extends EventTarget {
     readonly OBSOLETE: number;

     readonly UNCACHED: number;

     readonly UPDATEREADY: number;

-    addEventListener(type: "cached", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "checking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "downloading", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "noupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "obsolete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "updateready", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ApplicationCacheEventMap>(type: K, listener: (this: ApplicationCache, ev: ApplicationCacheEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -6873,17 +6918,21 @@ declare var AudioBuffer: {
     new(): AudioBuffer;

 }

 

+interface AudioBufferSourceNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface AudioBufferSourceNode extends AudioNode {

     buffer: AudioBuffer | null;

     readonly detune: AudioParam;

     loop: boolean;

     loopEnd: number;

     loopStart: number;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: AudioBufferSourceNode, ev: MediaStreamErrorEvent) => any;

     readonly playbackRate: AudioParam;

     start(when?: number, offset?: number, duration?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioBufferSourceNodeEventMap>(type: K, listener: (this: AudioBufferSourceNode, ev: AudioBufferSourceNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -7005,16 +7054,20 @@ declare var AudioTrack: {
     new(): AudioTrack;

 }

 

+interface AudioTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface AudioTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: AudioTrackList, ev: TrackEvent) => any;

+    onchange: (this: AudioTrackList, ev: Event) => any;

+    onremovetrack: (this: AudioTrackList, ev: TrackEvent) => any;

     getTrackById(id: string): AudioTrack | null;

     item(index: number): AudioTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof AudioTrackListEventMap>(type: K, listener: (this: AudioTrackList, ev: AudioTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: AudioTrack;

 }

@@ -7715,7 +7768,6 @@ interface CharacterData extends Node, ChildNode {
     insertData(offset: number, arg: string): void;

     replaceData(offset: number, count: number, arg: string): void;

     substringData(offset: number, count: number): string;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var CharacterData: {

@@ -8040,6 +8092,8 @@ declare var DOMTokenList: {
 

 interface DataCue extends TextTrackCue {

     data: ArrayBuffer;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DataCue: {

@@ -8168,7 +8222,98 @@ declare var DeviceRotationRate: {
     new(): DeviceRotationRate;

 }

 

-interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode {

+interface DocumentEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforedeactivate": UIEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "fullscreenchange": Event;

+    "fullscreenerror": Event;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "mssitemodejumplistitemremoved": MSSiteModeEvent;

+    "msthumbnailclick": MSSiteModeEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "pointerlockchange": Event;

+    "pointerlockerror": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectionchange": Event;

+    "selectstart": Event;

+    "stalled": Event;

+    "stop": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "volumechange": Event;

+    "waiting": Event;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

+interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode, DocumentOrShadowRoot {

     /**

       * Sets or gets the URL for the current document. 

       */

@@ -8291,294 +8436,294 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Fires when the user aborts the download.

       * @param ev The event.

       */

-    onabort: (this: this, ev: UIEvent) => any;

+    onabort: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the object is set as the active element.

       * @param ev The event.

       */

-    onactivate: (this: this, ev: UIEvent) => any;

+    onactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the object is set as the active element.

       * @param ev The event.

       */

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

+    onbeforeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires immediately before the activeElement is changed from the current object to another object in the parent document.

       * @param ev The event.

       */

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

+    onbeforedeactivate: (this: Document, ev: UIEvent) => any;

     /** 

       * Fires when the object loses the input focus. 

       * @param ev The focus event.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

+    onblur: (this: Document, ev: FocusEvent) => any;

     /**

       * Occurs when playback is possible, but would require further buffering. 

       * @param ev The event.

       */

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

+    oncanplay: (this: Document, ev: Event) => any;

+    oncanplaythrough: (this: Document, ev: Event) => any;

     /**

       * Fires when the contents of the object or selection have changed. 

       * @param ev The event.

       */

-    onchange: (this: this, ev: Event) => any;

+    onchange: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the left mouse button on the object

       * @param ev The mouse event.

       */

-    onclick: (this: this, ev: MouseEvent) => any;

+    onclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user clicks the right mouse button in the client area, opening the context menu. 

       * @param ev The mouse event.

       */

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

+    oncontextmenu: (this: Document, ev: PointerEvent) => any;

     /**

       * Fires when the user double-clicks the object.

       * @param ev The mouse event.

       */

-    ondblclick: (this: this, ev: MouseEvent) => any;

+    ondblclick: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the activeElement is changed from the current object to another object in the parent document.

       * @param ev The UI Event

       */

-    ondeactivate: (this: this, ev: UIEvent) => any;

+    ondeactivate: (this: Document, ev: UIEvent) => any;

     /**

       * Fires on the source object continuously during a drag operation.

       * @param ev The event.

       */

-    ondrag: (this: this, ev: DragEvent) => any;

+    ondrag: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user releases the mouse at the close of a drag operation.

       * @param ev The event.

       */

-    ondragend: (this: this, ev: DragEvent) => any;

+    ondragend: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target element when the user drags the object to a valid drop target.

       * @param ev The drag event.

       */

-    ondragenter: (this: this, ev: DragEvent) => any;

+    ondragenter: (this: Document, ev: DragEvent) => any;

     /** 

       * Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.

       * @param ev The drag event.

       */

-    ondragleave: (this: this, ev: DragEvent) => any;

+    ondragleave: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the target element continuously while the user drags the object over a valid drop target.

       * @param ev The event.

       */

-    ondragover: (this: this, ev: DragEvent) => any;

+    ondragover: (this: Document, ev: DragEvent) => any;

     /**

       * Fires on the source object when the user starts to drag a text selection or selected object. 

       * @param ev The event.

       */

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

+    ondragstart: (this: Document, ev: DragEvent) => any;

+    ondrop: (this: Document, ev: DragEvent) => any;

     /**

       * Occurs when the duration attribute is updated. 

       * @param ev The event.

       */

-    ondurationchange: (this: this, ev: Event) => any;

+    ondurationchange: (this: Document, ev: Event) => any;

     /**

       * Occurs when the media element is reset to its initial state. 

       * @param ev The event.

       */

-    onemptied: (this: this, ev: Event) => any;

+    onemptied: (this: Document, ev: Event) => any;

     /**

       * Occurs when the end of playback is reached. 

       * @param ev The event

       */

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: Document, ev: MediaStreamErrorEvent) => any;

     /**

       * Fires when an error occurs during object loading.

       * @param ev The event.

       */

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onerror: (this: Document, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus. 

       * @param ev The event.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onfullscreenchange: (this: this, ev: Event) => any;

-    onfullscreenerror: (this: this, ev: Event) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

+    onfocus: (this: Document, ev: FocusEvent) => any;

+    onfullscreenchange: (this: Document, ev: Event) => any;

+    onfullscreenerror: (this: Document, ev: Event) => any;

+    oninput: (this: Document, ev: Event) => any;

+    oninvalid: (this: Document, ev: Event) => any;

     /**

       * Fires when the user presses a key.

       * @param ev The keyboard event

       */

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

+    onkeydown: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user presses an alphanumeric key.

       * @param ev The event.

       */

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

+    onkeypress: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires when the user releases a key.

       * @param ev The keyboard event

       */

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

+    onkeyup: (this: Document, ev: KeyboardEvent) => any;

     /**

       * Fires immediately after the browser loads the object. 

       * @param ev The event.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: Document, ev: Event) => any;

     /**

       * Occurs when media data is loaded at the current playback position. 

       * @param ev The event.

       */

-    onloadeddata: (this: this, ev: Event) => any;

+    onloadeddata: (this: Document, ev: Event) => any;

     /**

       * Occurs when the duration and dimensions of the media have been determined.

       * @param ev The event.

       */

-    onloadedmetadata: (this: this, ev: Event) => any;

+    onloadedmetadata: (this: Document, ev: Event) => any;

     /**

       * Occurs when Internet Explorer begins looking for media data. 

       * @param ev The event.

       */

-    onloadstart: (this: this, ev: Event) => any;

+    onloadstart: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the object with either mouse button. 

       * @param ev The mouse event.

       */

-    onmousedown: (this: this, ev: MouseEvent) => any;

+    onmousedown: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse over the object. 

       * @param ev The mouse event.

       */

-    onmousemove: (this: this, ev: MouseEvent) => any;

+    onmousemove: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer outside the boundaries of the object. 

       * @param ev The mouse event.

       */

-    onmouseout: (this: this, ev: MouseEvent) => any;

+    onmouseout: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user moves the mouse pointer into the object.

       * @param ev The mouse event.

       */

-    onmouseover: (this: this, ev: MouseEvent) => any;

+    onmouseover: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the user releases a mouse button while the mouse is over the object. 

       * @param ev The mouse event.

       */

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onmouseup: (this: Document, ev: MouseEvent) => any;

     /**

       * Fires when the wheel button is rotated. 

       * @param ev The mouse event

       */

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onmousewheel: (this: Document, ev: WheelEvent) => any;

+    onmscontentzoom: (this: Document, ev: UIEvent) => any;

+    onmsgesturechange: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Document, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Document, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Document, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Document, ev: MSGestureEvent) => any;

+    onmsmanipulationstatechanged: (this: Document, ev: MSManipulationEvent) => any;

+    onmspointercancel: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Document, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Document, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Document, ev: MSPointerEvent) => any;

     /**

       * Occurs when an item is removed from a Jump List of a webpage running in Site Mode. 

       * @param ev The event.

       */

-    onmssitemodejumplistitemremoved: (this: this, ev: MSSiteModeEvent) => any;

+    onmssitemodejumplistitemremoved: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when a user clicks a button in a Thumbnail Toolbar of a webpage running in Site Mode.

       * @param ev The event.

       */

-    onmsthumbnailclick: (this: this, ev: MSSiteModeEvent) => any;

+    onmsthumbnailclick: (this: Document, ev: MSSiteModeEvent) => any;

     /**

       * Occurs when playback is paused.

       * @param ev The event.

       */

-    onpause: (this: this, ev: Event) => any;

+    onpause: (this: Document, ev: Event) => any;

     /**

       * Occurs when the play method is requested. 

       * @param ev The event.

       */

-    onplay: (this: this, ev: Event) => any;

+    onplay: (this: Document, ev: Event) => any;

     /**

       * Occurs when the audio or video has started playing. 

       * @param ev The event.

       */

-    onplaying: (this: this, ev: Event) => any;

-    onpointerlockchange: (this: this, ev: Event) => any;

-    onpointerlockerror: (this: this, ev: Event) => any;

+    onplaying: (this: Document, ev: Event) => any;

+    onpointerlockchange: (this: Document, ev: Event) => any;

+    onpointerlockerror: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate progress while downloading media data. 

       * @param ev The event.

       */

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onprogress: (this: Document, ev: ProgressEvent) => any;

     /**

       * Occurs when the playback rate is increased or decreased. 

       * @param ev The event.

       */

-    onratechange: (this: this, ev: Event) => any;

+    onratechange: (this: Document, ev: Event) => any;

     /**

       * Fires when the state of the object has changed.

       * @param ev The event

       */

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

+    onreadystatechange: (this: Document, ev: ProgressEvent) => any;

     /**

       * Fires when the user resets a form. 

       * @param ev The event.

       */

-    onreset: (this: this, ev: Event) => any;

+    onreset: (this: Document, ev: Event) => any;

     /**

       * Fires when the user repositions the scroll box in the scroll bar on the object. 

       * @param ev The event.

       */

-    onscroll: (this: this, ev: UIEvent) => any;

+    onscroll: (this: Document, ev: UIEvent) => any;

     /**

       * Occurs when the seek operation ends. 

       * @param ev The event.

       */

-    onseeked: (this: this, ev: Event) => any;

+    onseeked: (this: Document, ev: Event) => any;

     /**

       * Occurs when the current playback position is moved. 

       * @param ev The event.

       */

-    onseeking: (this: this, ev: Event) => any;

+    onseeking: (this: Document, ev: Event) => any;

     /**

       * Fires when the current selection changes.

       * @param ev The event.

       */

-    onselect: (this: this, ev: UIEvent) => any;

+    onselect: (this: Document, ev: UIEvent) => any;

     /**

       * Fires when the selection state of a document changes.

       * @param ev The event.

       */

-    onselectionchange: (this: this, ev: Event) => any;

-    onselectstart: (this: this, ev: Event) => any;

+    onselectionchange: (this: Document, ev: Event) => any;

+    onselectstart: (this: Document, ev: Event) => any;

     /**

       * Occurs when the download has stopped. 

       * @param ev The event.

       */

-    onstalled: (this: this, ev: Event) => any;

+    onstalled: (this: Document, ev: Event) => any;

     /**

       * Fires when the user clicks the Stop button or leaves the Web page.

       * @param ev The event.

       */

-    onstop: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

+    onstop: (this: Document, ev: Event) => any;

+    onsubmit: (this: Document, ev: Event) => any;

     /**

       * Occurs if the load operation has been intentionally halted. 

       * @param ev The event.

       */

-    onsuspend: (this: this, ev: Event) => any;

+    onsuspend: (this: Document, ev: Event) => any;

     /**

       * Occurs to indicate the current playback position.

       * @param ev The event.

       */

-    ontimeupdate: (this: this, ev: Event) => any;

+    ontimeupdate: (this: Document, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

@@ -8587,14 +8732,14 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Occurs when the volume is changed, or playback is muted or unmuted.

       * @param ev The event.

       */

-    onvolumechange: (this: this, ev: Event) => any;

+    onvolumechange: (this: Document, ev: Event) => any;

     /**

       * Occurs when playback stops because the next frame of a video resource is not available. 

       * @param ev The event.

       */

-    onwaiting: (this: this, ev: Event) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwaiting: (this: Document, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Document, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Document, ev: Event) => any;

     plugins: HTMLCollectionOf<HTMLEmbedElement>;

     readonly pointerLockElement: Element;

     /**

@@ -8665,86 +8810,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Creates an instance of the element for the specified tag.

       * @param tagName The name of an element.

       */

-    createElement(tagName: "a"): HTMLAnchorElement;

-    createElement(tagName: "applet"): HTMLAppletElement;

-    createElement(tagName: "area"): HTMLAreaElement;

-    createElement(tagName: "audio"): HTMLAudioElement;

-    createElement(tagName: "base"): HTMLBaseElement;

-    createElement(tagName: "basefont"): HTMLBaseFontElement;

-    createElement(tagName: "blockquote"): HTMLQuoteElement;

-    createElement(tagName: "body"): HTMLBodyElement;

-    createElement(tagName: "br"): HTMLBRElement;

-    createElement(tagName: "button"): HTMLButtonElement;

-    createElement(tagName: "canvas"): HTMLCanvasElement;

-    createElement(tagName: "caption"): HTMLTableCaptionElement;

-    createElement(tagName: "col"): HTMLTableColElement;

-    createElement(tagName: "colgroup"): HTMLTableColElement;

-    createElement(tagName: "datalist"): HTMLDataListElement;

-    createElement(tagName: "del"): HTMLModElement;

-    createElement(tagName: "dir"): HTMLDirectoryElement;

-    createElement(tagName: "div"): HTMLDivElement;

-    createElement(tagName: "dl"): HTMLDListElement;

-    createElement(tagName: "embed"): HTMLEmbedElement;

-    createElement(tagName: "fieldset"): HTMLFieldSetElement;

-    createElement(tagName: "font"): HTMLFontElement;

-    createElement(tagName: "form"): HTMLFormElement;

-    createElement(tagName: "frame"): HTMLFrameElement;

-    createElement(tagName: "frameset"): HTMLFrameSetElement;

-    createElement(tagName: "h1"): HTMLHeadingElement;

-    createElement(tagName: "h2"): HTMLHeadingElement;

-    createElement(tagName: "h3"): HTMLHeadingElement;

-    createElement(tagName: "h4"): HTMLHeadingElement;

-    createElement(tagName: "h5"): HTMLHeadingElement;

-    createElement(tagName: "h6"): HTMLHeadingElement;

-    createElement(tagName: "head"): HTMLHeadElement;

-    createElement(tagName: "hr"): HTMLHRElement;

-    createElement(tagName: "html"): HTMLHtmlElement;

-    createElement(tagName: "iframe"): HTMLIFrameElement;

-    createElement(tagName: "img"): HTMLImageElement;

-    createElement(tagName: "input"): HTMLInputElement;

-    createElement(tagName: "ins"): HTMLModElement;

-    createElement(tagName: "isindex"): HTMLUnknownElement;

-    createElement(tagName: "label"): HTMLLabelElement;

-    createElement(tagName: "legend"): HTMLLegendElement;

-    createElement(tagName: "li"): HTMLLIElement;

-    createElement(tagName: "link"): HTMLLinkElement;

-    createElement(tagName: "listing"): HTMLPreElement;

-    createElement(tagName: "map"): HTMLMapElement;

-    createElement(tagName: "marquee"): HTMLMarqueeElement;

-    createElement(tagName: "menu"): HTMLMenuElement;

-    createElement(tagName: "meta"): HTMLMetaElement;

-    createElement(tagName: "meter"): HTMLMeterElement;

-    createElement(tagName: "nextid"): HTMLUnknownElement;

-    createElement(tagName: "object"): HTMLObjectElement;

-    createElement(tagName: "ol"): HTMLOListElement;

-    createElement(tagName: "optgroup"): HTMLOptGroupElement;

-    createElement(tagName: "option"): HTMLOptionElement;

-    createElement(tagName: "p"): HTMLParagraphElement;

-    createElement(tagName: "param"): HTMLParamElement;

-    createElement(tagName: "picture"): HTMLPictureElement;

-    createElement(tagName: "pre"): HTMLPreElement;

-    createElement(tagName: "progress"): HTMLProgressElement;

-    createElement(tagName: "q"): HTMLQuoteElement;

-    createElement(tagName: "script"): HTMLScriptElement;

-    createElement(tagName: "select"): HTMLSelectElement;

-    createElement(tagName: "source"): HTMLSourceElement;

-    createElement(tagName: "span"): HTMLSpanElement;

-    createElement(tagName: "style"): HTMLStyleElement;

-    createElement(tagName: "table"): HTMLTableElement;

-    createElement(tagName: "tbody"): HTMLTableSectionElement;

-    createElement(tagName: "td"): HTMLTableDataCellElement;

-    createElement(tagName: "template"): HTMLTemplateElement;

-    createElement(tagName: "textarea"): HTMLTextAreaElement;

-    createElement(tagName: "tfoot"): HTMLTableSectionElement;

-    createElement(tagName: "th"): HTMLTableHeaderCellElement;

-    createElement(tagName: "thead"): HTMLTableSectionElement;

-    createElement(tagName: "title"): HTMLTitleElement;

-    createElement(tagName: "tr"): HTMLTableRowElement;

-    createElement(tagName: "track"): HTMLTrackElement;

-    createElement(tagName: "ul"): HTMLUListElement;

-    createElement(tagName: "video"): HTMLVideoElement;

-    createElement(tagName: "x-ms-webview"): MSHTMLWebViewElement;

-    createElement(tagName: "xmp"): HTMLPreElement;

+    createElement<K extends keyof HTMLElementTagNameMap>(tagName: K): HTMLElementTagNameMap[K];

     createElement(tagName: string): HTMLElement;

     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement

     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "a"): SVGAElement

@@ -8846,7 +8912,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param y The y-offset

       */

     elementFromPoint(x: number, y: number): Element;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

     /**

       * Executes a command on the current document, current selection, or the given range.

       * @param commandId String that specifies the command to execute. This command can be any of the command identifiers that can be executed in script.

@@ -8880,182 +8946,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Retrieves a collection of objects based on the specified element name.

       * @param name Specifies the name of an element.

       */

-    getElementsByTagName(tagname: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(tagname: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(tagname: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(tagname: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(tagname: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(tagname: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(tagname: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(tagname: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(tagname: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(tagname: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(tagname: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(tagname: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(tagname: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(tagname: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(tagname: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(tagname: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(tagname: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(tagname: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(tagname: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(tagname: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(tagname: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(tagname: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(tagname: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(tagname: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(tagname: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(tagname: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(tagname: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(tagname: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(tagname: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(tagname: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(tagname: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(tagname: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(tagname: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(tagname: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(tagname: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(tagname: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(tagname: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(tagname: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(tagname: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(tagname: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(tagname: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(tagname: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(tagname: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(tagname: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(tagname: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(tagname: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(tagname: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(tagname: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(tagname: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(tagname: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(tagname: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(tagname: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(tagname: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(tagname: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(tagname: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(tagname: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(tagname: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(tagname: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(tagname: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(tagname: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(tagname: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(tagname: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(tagname: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(tagname: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(tagname: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(tagname: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(tagname: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(tagname: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(tagname: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(tagname: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(tagname: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(tagname: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(tagname: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(tagname: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(tagname: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(tagname: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(tagname: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(tagname: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(tagname: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(tagname: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(tagname: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(tagname: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(tagname: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(tagname: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(tagname: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(tagname: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(tagname: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(tagname: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(tagname: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(tagname: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(tagname: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(tagname: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(tagname: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(tagname: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(tagname: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(tagname: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(tagname: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(tagname: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(tagname: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(tagname: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(tagname: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(tagname: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(tagname: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(tagname: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(tagname: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(tagname: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(tagname: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(tagname: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(tagname: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(tagname: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(tagname: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(tagname: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(tagname: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(tagname: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(tagname: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(tagname: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(tagname: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(tagname: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(tagname: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(tagname: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(tagname: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(tagname: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(tagname: K): ElementListTagNameMap[K];

     getElementsByTagName(tagname: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -9126,103 +9017,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param content The text and HTML tags to write.

       */

     writeln(...content: string[]): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "fullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mssitemodejumplistitemremoved", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msthumbnailclick", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerlockerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectionchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stop", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9232,7 +9027,6 @@ declare var Document: {
 }

 

 interface DocumentFragment extends Node, NodeSelector, ParentNode {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentFragment: {

@@ -9247,7 +9041,6 @@ interface DocumentType extends Node, ChildNode {
     readonly notations: NamedNodeMap;

     readonly publicId: string | null;

     readonly systemId: string | null;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var DocumentType: {

@@ -9300,6 +9093,36 @@ declare var EXT_texture_filter_anisotropic: {
     readonly TEXTURE_MAX_ANISOTROPY_EXT: number;

 }

 

+interface ElementEventMap extends GlobalEventHandlersEventMap {

+    "ariarequest": AriaRequestEvent;

+    "command": CommandEvent;

+    "gotpointercapture": PointerEvent;

+    "lostpointercapture": PointerEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSGotPointerCapture": MSPointerEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSLostPointerCapture": MSPointerEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "touchcancel": TouchEvent;

+    "touchend": TouchEvent;

+    "touchmove": TouchEvent;

+    "touchstart": TouchEvent;

+    "webkitfullscreenchange": Event;

+    "webkitfullscreenerror": Event;

+}

+

 interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelector, ChildNode, ParentNode {

     readonly classList: DOMTokenList;

     className: string;

@@ -9310,33 +9133,33 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     id: string;

     msContentZoomFactor: number;

     readonly msRegionOverflow: string;

-    onariarequest: (this: this, ev: AriaRequestEvent) => any;

-    oncommand: (this: this, ev: CommandEvent) => any;

-    ongotpointercapture: (this: this, ev: PointerEvent) => any;

-    onlostpointercapture: (this: this, ev: PointerEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsgotpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmslostpointercapture: (this: this, ev: MSPointerEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

+    onariarequest: (this: Element, ev: AriaRequestEvent) => any;

+    oncommand: (this: Element, ev: CommandEvent) => any;

+    ongotpointercapture: (this: Element, ev: PointerEvent) => any;

+    onlostpointercapture: (this: Element, ev: PointerEvent) => any;

+    onmsgesturechange: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Element, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Element, ev: MSGestureEvent) => any;

+    onmsgotpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmsinertiastart: (this: Element, ev: MSGestureEvent) => any;

+    onmslostpointercapture: (this: Element, ev: MSPointerEvent) => any;

+    onmspointercancel: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Element, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Element, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Element, ev: MSPointerEvent) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onwebkitfullscreenchange: (this: this, ev: Event) => any;

-    onwebkitfullscreenerror: (this: this, ev: Event) => any;

+    onwebkitfullscreenchange: (this: Element, ev: Event) => any;

+    onwebkitfullscreenerror: (this: Element, ev: Event) => any;

     readonly prefix: string | null;

     readonly scrollHeight: number;

     scrollLeft: number;

@@ -9344,188 +9167,16 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     readonly scrollWidth: number;

     readonly tagName: string;

     innerHTML: string;

+    readonly assignedSlot: HTMLSlotElement | null;

+    slot: string;

+    readonly shadowRoot: ShadowRoot | null;

     getAttribute(name: string): string | null;

     getAttributeNS(namespaceURI: string, localName: string): string;

     getAttributeNode(name: string): Attr;

     getAttributeNodeNS(namespaceURI: string, localName: string): Attr;

     getBoundingClientRect(): ClientRect;

     getClientRects(): ClientRectList;

-    getElementsByTagName(name: "a"): NodeListOf<HTMLAnchorElement>;

-    getElementsByTagName(name: "abbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "acronym"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "address"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "applet"): NodeListOf<HTMLAppletElement>;

-    getElementsByTagName(name: "area"): NodeListOf<HTMLAreaElement>;

-    getElementsByTagName(name: "article"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "aside"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "audio"): NodeListOf<HTMLAudioElement>;

-    getElementsByTagName(name: "b"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "base"): NodeListOf<HTMLBaseElement>;

-    getElementsByTagName(name: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    getElementsByTagName(name: "bdo"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "big"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "body"): NodeListOf<HTMLBodyElement>;

-    getElementsByTagName(name: "br"): NodeListOf<HTMLBRElement>;

-    getElementsByTagName(name: "button"): NodeListOf<HTMLButtonElement>;

-    getElementsByTagName(name: "canvas"): NodeListOf<HTMLCanvasElement>;

-    getElementsByTagName(name: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    getElementsByTagName(name: "center"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "circle"): NodeListOf<SVGCircleElement>;

-    getElementsByTagName(name: "cite"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "clippath"): NodeListOf<SVGClipPathElement>;

-    getElementsByTagName(name: "code"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "col"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "colgroup"): NodeListOf<HTMLTableColElement>;

-    getElementsByTagName(name: "datalist"): NodeListOf<HTMLDataListElement>;

-    getElementsByTagName(name: "dd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "defs"): NodeListOf<SVGDefsElement>;

-    getElementsByTagName(name: "del"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "desc"): NodeListOf<SVGDescElement>;

-    getElementsByTagName(name: "dfn"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "dir"): NodeListOf<HTMLDirectoryElement>;

-    getElementsByTagName(name: "div"): NodeListOf<HTMLDivElement>;

-    getElementsByTagName(name: "dl"): NodeListOf<HTMLDListElement>;

-    getElementsByTagName(name: "dt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ellipse"): NodeListOf<SVGEllipseElement>;

-    getElementsByTagName(name: "em"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "embed"): NodeListOf<HTMLEmbedElement>;

-    getElementsByTagName(name: "feblend"): NodeListOf<SVGFEBlendElement>;

-    getElementsByTagName(name: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    getElementsByTagName(name: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    getElementsByTagName(name: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    getElementsByTagName(name: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    getElementsByTagName(name: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    getElementsByTagName(name: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    getElementsByTagName(name: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    getElementsByTagName(name: "feflood"): NodeListOf<SVGFEFloodElement>;

-    getElementsByTagName(name: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    getElementsByTagName(name: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    getElementsByTagName(name: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    getElementsByTagName(name: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    getElementsByTagName(name: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    getElementsByTagName(name: "feimage"): NodeListOf<SVGFEImageElement>;

-    getElementsByTagName(name: "femerge"): NodeListOf<SVGFEMergeElement>;

-    getElementsByTagName(name: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    getElementsByTagName(name: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    getElementsByTagName(name: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    getElementsByTagName(name: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    getElementsByTagName(name: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    getElementsByTagName(name: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    getElementsByTagName(name: "fetile"): NodeListOf<SVGFETileElement>;

-    getElementsByTagName(name: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    getElementsByTagName(name: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    getElementsByTagName(name: "figcaption"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "figure"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "filter"): NodeListOf<SVGFilterElement>;

-    getElementsByTagName(name: "font"): NodeListOf<HTMLFontElement>;

-    getElementsByTagName(name: "footer"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    getElementsByTagName(name: "form"): NodeListOf<HTMLFormElement>;

-    getElementsByTagName(name: "frame"): NodeListOf<HTMLFrameElement>;

-    getElementsByTagName(name: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    getElementsByTagName(name: "g"): NodeListOf<SVGGElement>;

-    getElementsByTagName(name: "h1"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h2"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h3"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h4"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h5"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "h6"): NodeListOf<HTMLHeadingElement>;

-    getElementsByTagName(name: "head"): NodeListOf<HTMLHeadElement>;

-    getElementsByTagName(name: "header"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hgroup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "hr"): NodeListOf<HTMLHRElement>;

-    getElementsByTagName(name: "html"): NodeListOf<HTMLHtmlElement>;

-    getElementsByTagName(name: "i"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "iframe"): NodeListOf<HTMLIFrameElement>;

-    getElementsByTagName(name: "image"): NodeListOf<SVGImageElement>;

-    getElementsByTagName(name: "img"): NodeListOf<HTMLImageElement>;

-    getElementsByTagName(name: "input"): NodeListOf<HTMLInputElement>;

-    getElementsByTagName(name: "ins"): NodeListOf<HTMLModElement>;

-    getElementsByTagName(name: "isindex"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "kbd"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "keygen"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "label"): NodeListOf<HTMLLabelElement>;

-    getElementsByTagName(name: "legend"): NodeListOf<HTMLLegendElement>;

-    getElementsByTagName(name: "li"): NodeListOf<HTMLLIElement>;

-    getElementsByTagName(name: "line"): NodeListOf<SVGLineElement>;

-    getElementsByTagName(name: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    getElementsByTagName(name: "link"): NodeListOf<HTMLLinkElement>;

-    getElementsByTagName(name: "listing"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "map"): NodeListOf<HTMLMapElement>;

-    getElementsByTagName(name: "mark"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "marker"): NodeListOf<SVGMarkerElement>;

-    getElementsByTagName(name: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    getElementsByTagName(name: "mask"): NodeListOf<SVGMaskElement>;

-    getElementsByTagName(name: "menu"): NodeListOf<HTMLMenuElement>;

-    getElementsByTagName(name: "meta"): NodeListOf<HTMLMetaElement>;

-    getElementsByTagName(name: "metadata"): NodeListOf<SVGMetadataElement>;

-    getElementsByTagName(name: "meter"): NodeListOf<HTMLMeterElement>;

-    getElementsByTagName(name: "nav"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "nextid"): NodeListOf<HTMLUnknownElement>;

-    getElementsByTagName(name: "nobr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noframes"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "noscript"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "object"): NodeListOf<HTMLObjectElement>;

-    getElementsByTagName(name: "ol"): NodeListOf<HTMLOListElement>;

-    getElementsByTagName(name: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    getElementsByTagName(name: "option"): NodeListOf<HTMLOptionElement>;

-    getElementsByTagName(name: "p"): NodeListOf<HTMLParagraphElement>;

-    getElementsByTagName(name: "param"): NodeListOf<HTMLParamElement>;

-    getElementsByTagName(name: "path"): NodeListOf<SVGPathElement>;

-    getElementsByTagName(name: "pattern"): NodeListOf<SVGPatternElement>;

-    getElementsByTagName(name: "picture"): NodeListOf<HTMLPictureElement>;

-    getElementsByTagName(name: "plaintext"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "polygon"): NodeListOf<SVGPolygonElement>;

-    getElementsByTagName(name: "polyline"): NodeListOf<SVGPolylineElement>;

-    getElementsByTagName(name: "pre"): NodeListOf<HTMLPreElement>;

-    getElementsByTagName(name: "progress"): NodeListOf<HTMLProgressElement>;

-    getElementsByTagName(name: "q"): NodeListOf<HTMLQuoteElement>;

-    getElementsByTagName(name: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    getElementsByTagName(name: "rect"): NodeListOf<SVGRectElement>;

-    getElementsByTagName(name: "rt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ruby"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "s"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "samp"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "script"): NodeListOf<HTMLScriptElement>;

-    getElementsByTagName(name: "section"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "select"): NodeListOf<HTMLSelectElement>;

-    getElementsByTagName(name: "small"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "source"): NodeListOf<HTMLSourceElement>;

-    getElementsByTagName(name: "span"): NodeListOf<HTMLSpanElement>;

-    getElementsByTagName(name: "stop"): NodeListOf<SVGStopElement>;

-    getElementsByTagName(name: "strike"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "strong"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "style"): NodeListOf<HTMLStyleElement>;

-    getElementsByTagName(name: "sub"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "sup"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "svg"): NodeListOf<SVGSVGElement>;

-    getElementsByTagName(name: "switch"): NodeListOf<SVGSwitchElement>;

-    getElementsByTagName(name: "symbol"): NodeListOf<SVGSymbolElement>;

-    getElementsByTagName(name: "table"): NodeListOf<HTMLTableElement>;

-    getElementsByTagName(name: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "td"): NodeListOf<HTMLTableDataCellElement>;

-    getElementsByTagName(name: "template"): NodeListOf<HTMLTemplateElement>;

-    getElementsByTagName(name: "text"): NodeListOf<SVGTextElement>;

-    getElementsByTagName(name: "textpath"): NodeListOf<SVGTextPathElement>;

-    getElementsByTagName(name: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    getElementsByTagName(name: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    getElementsByTagName(name: "thead"): NodeListOf<HTMLTableSectionElement>;

-    getElementsByTagName(name: "title"): NodeListOf<HTMLTitleElement>;

-    getElementsByTagName(name: "tr"): NodeListOf<HTMLTableRowElement>;

-    getElementsByTagName(name: "track"): NodeListOf<HTMLTrackElement>;

-    getElementsByTagName(name: "tspan"): NodeListOf<SVGTSpanElement>;

-    getElementsByTagName(name: "tt"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "u"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "ul"): NodeListOf<HTMLUListElement>;

-    getElementsByTagName(name: "use"): NodeListOf<SVGUseElement>;

-    getElementsByTagName(name: "var"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "video"): NodeListOf<HTMLVideoElement>;

-    getElementsByTagName(name: "view"): NodeListOf<SVGViewElement>;

-    getElementsByTagName(name: "wbr"): NodeListOf<HTMLElement>;

-    getElementsByTagName(name: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    getElementsByTagName(name: "xmp"): NodeListOf<HTMLPreElement>;

+    getElementsByTagName<K extends keyof ElementListTagNameMap>(name: K): ElementListTagNameMap[K];

     getElementsByTagName(name: string): NodeListOf<Element>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;

     getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;

@@ -9565,42 +9216,8 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     insertAdjacentElement(position: string, insertedElement: Element): Element | null;

     insertAdjacentHTML(where: string, html: string): void;

     insertAdjacentText(where: string, text: string): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    attachShadow(shadowRootInitDict: ShadowRootInit): ShadowRoot;

+    addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9636,10 +9253,12 @@ interface Event {
     readonly target: EventTarget;

     readonly timeStamp: number;

     readonly type: string;

+    readonly scoped: boolean;

     initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;

     preventDefault(): void;

     stopImmediatePropagation(): void;

     stopPropagation(): void;

+    deepPath(): EventTarget[];

     readonly AT_TARGET: number;

     readonly BUBBLING_PHASE: number;

     readonly CAPTURING_PHASE: number;

@@ -9700,6 +9319,7 @@ interface FileReader extends EventTarget, MSBaseReader {
     readAsBinaryString(blob: Blob): void;

     readAsDataURL(blob: Blob): void;

     readAsText(blob: Blob, encoding?: string): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -9870,6 +9490,8 @@ interface HTMLAnchorElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAnchorElement: {

@@ -9942,6 +9564,8 @@ interface HTMLAppletElement extends HTMLElement {
     useMap: string;

     vspace: number;

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAppletElement: {

@@ -10008,6 +9632,8 @@ interface HTMLAreaElement extends HTMLElement {
       * Returns a string representation of an object.

       */

     toString(): string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAreaElement: {

@@ -10032,6 +9658,8 @@ declare var HTMLAreasCollection: {
 }

 

 interface HTMLAudioElement extends HTMLMediaElement {

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLAudioElement: {

@@ -10044,6 +9672,8 @@ interface HTMLBRElement extends HTMLElement {
       * Sets or retrieves the side on which floating objects are not to be positioned when any IHTMLBlockElement is inserted into the document.

       */

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBRElement: {

@@ -10060,6 +9690,8 @@ interface HTMLBaseElement extends HTMLElement {
       * Sets or retrieves the window or frame at which to target content.

       */

     target: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLBaseElement: {

@@ -10076,6 +9708,7 @@ interface HTMLBaseFontElement extends HTMLElement, DOML2DeprecatedColorProperty
       * Sets or retrieves the font size of the object.

       */

     size: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10084,6 +9717,27 @@ declare var HTMLBaseFontElement: {
     new(): HTMLBaseFontElement;

 }

 

+interface HTMLBodyElementEventMap extends HTMLElementEventMap {

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "popstate": PopStateEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLBodyElement extends HTMLElement {

     aLink: any;

     background: string;

@@ -10091,147 +9745,27 @@ interface HTMLBodyElement extends HTMLElement {
     bgProperties: string;

     link: any;

     noWrap: boolean;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onafterprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLBodyElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLBodyElement, ev: BeforeUnloadEvent) => any;

+    onblur: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLBodyElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLBodyElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLBodyElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLBodyElement, ev: Event) => any;

+    onmessage: (this: HTMLBodyElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLBodyElement, ev: Event) => any;

+    ononline: (this: HTMLBodyElement, ev: Event) => any;

+    onorientationchange: (this: HTMLBodyElement, ev: Event) => any;

+    onpagehide: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLBodyElement, ev: PageTransitionEvent) => any;

+    onpopstate: (this: HTMLBodyElement, ev: PopStateEvent) => any;

+    onresize: (this: HTMLBodyElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLBodyElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLBodyElement, ev: Event) => any;

     text: any;

     vLink: any;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLBodyElementEventMap>(type: K, listener: (this: HTMLBodyElement, ev: HTMLBodyElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10304,6 +9838,8 @@ interface HTMLButtonElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLButtonElement: {

@@ -10337,6 +9873,8 @@ interface HTMLCanvasElement extends HTMLElement {
       */

     toDataURL(type?: string, ...args: any[]): string;

     toBlob(callback: (result: Blob | null) => void, type?: string, ...arguments: any[]): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLCanvasElement: {

@@ -10367,6 +9905,8 @@ declare var HTMLCollection: {
 

 interface HTMLDListElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDListElement: {

@@ -10376,6 +9916,8 @@ declare var HTMLDListElement: {
 

 interface HTMLDataListElement extends HTMLElement {

     options: HTMLCollectionOf<HTMLOptionElement>;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDataListElement: {

@@ -10385,6 +9927,8 @@ declare var HTMLDataListElement: {
 

 interface HTMLDirectoryElement extends HTMLElement {

     compact: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDirectoryElement: {

@@ -10401,6 +9945,8 @@ interface HTMLDivElement extends HTMLElement {
       * Sets or retrieves whether the browser automatically performs wordwrap.

       */

     noWrap: boolean;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDivElement: {

@@ -10409,6 +9955,8 @@ declare var HTMLDivElement: {
 }

 

 interface HTMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLDocument: {

@@ -10416,6 +9964,76 @@ declare var HTMLDocument: {
     new(): HTMLDocument;

 }

 

+interface HTMLElementEventMap extends ElementEventMap {

+    "abort": UIEvent;

+    "activate": UIEvent;

+    "beforeactivate": UIEvent;

+    "beforecopy": ClipboardEvent;

+    "beforecut": ClipboardEvent;

+    "beforedeactivate": UIEvent;

+    "beforepaste": ClipboardEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "contextmenu": PointerEvent;

+    "copy": ClipboardEvent;

+    "cuechange": Event;

+    "cut": ClipboardEvent;

+    "dblclick": MouseEvent;

+    "deactivate": UIEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSContentZoom": UIEvent;

+    "MSManipulationStateChanged": MSManipulationEvent;

+    "paste": ClipboardEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "reset": Event;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "selectstart": Event;

+    "stalled": Event;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface HTMLElement extends Element {

     accessKey: string;

     readonly children: HTMLCollection;

@@ -10434,73 +10052,73 @@ interface HTMLElement extends Element {
     readonly offsetParent: Element;

     readonly offsetTop: number;

     readonly offsetWidth: number;

-    onabort: (this: this, ev: UIEvent) => any;

-    onactivate: (this: this, ev: UIEvent) => any;

-    onbeforeactivate: (this: this, ev: UIEvent) => any;

-    onbeforecopy: (this: this, ev: ClipboardEvent) => any;

-    onbeforecut: (this: this, ev: ClipboardEvent) => any;

-    onbeforedeactivate: (this: this, ev: UIEvent) => any;

-    onbeforepaste: (this: this, ev: ClipboardEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    oncopy: (this: this, ev: ClipboardEvent) => any;

-    oncuechange: (this: this, ev: Event) => any;

-    oncut: (this: this, ev: ClipboardEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondeactivate: (this: this, ev: UIEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmscontentzoom: (this: this, ev: UIEvent) => any;

-    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;

-    onpaste: (this: this, ev: ClipboardEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreset: (this: this, ev: Event) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onselectstart: (this: this, ev: Event) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onabort: (this: HTMLElement, ev: UIEvent) => any;

+    onactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforecopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforecut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onbeforedeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    onbeforepaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onblur: (this: HTMLElement, ev: FocusEvent) => any;

+    oncanplay: (this: HTMLElement, ev: Event) => any;

+    oncanplaythrough: (this: HTMLElement, ev: Event) => any;

+    onchange: (this: HTMLElement, ev: Event) => any;

+    onclick: (this: HTMLElement, ev: MouseEvent) => any;

+    oncontextmenu: (this: HTMLElement, ev: PointerEvent) => any;

+    oncopy: (this: HTMLElement, ev: ClipboardEvent) => any;

+    oncuechange: (this: HTMLElement, ev: Event) => any;

+    oncut: (this: HTMLElement, ev: ClipboardEvent) => any;

+    ondblclick: (this: HTMLElement, ev: MouseEvent) => any;

+    ondeactivate: (this: HTMLElement, ev: UIEvent) => any;

+    ondrag: (this: HTMLElement, ev: DragEvent) => any;

+    ondragend: (this: HTMLElement, ev: DragEvent) => any;

+    ondragenter: (this: HTMLElement, ev: DragEvent) => any;

+    ondragleave: (this: HTMLElement, ev: DragEvent) => any;

+    ondragover: (this: HTMLElement, ev: DragEvent) => any;

+    ondragstart: (this: HTMLElement, ev: DragEvent) => any;

+    ondrop: (this: HTMLElement, ev: DragEvent) => any;

+    ondurationchange: (this: HTMLElement, ev: Event) => any;

+    onemptied: (this: HTMLElement, ev: Event) => any;

+    onended: (this: HTMLElement, ev: MediaStreamErrorEvent) => any;

+    onerror: (this: HTMLElement, ev: ErrorEvent) => any;

+    onfocus: (this: HTMLElement, ev: FocusEvent) => any;

+    oninput: (this: HTMLElement, ev: Event) => any;

+    oninvalid: (this: HTMLElement, ev: Event) => any;

+    onkeydown: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeypress: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onkeyup: (this: HTMLElement, ev: KeyboardEvent) => any;

+    onload: (this: HTMLElement, ev: Event) => any;

+    onloadeddata: (this: HTMLElement, ev: Event) => any;

+    onloadedmetadata: (this: HTMLElement, ev: Event) => any;

+    onloadstart: (this: HTMLElement, ev: Event) => any;

+    onmousedown: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseenter: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseleave: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousemove: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseout: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseover: (this: HTMLElement, ev: MouseEvent) => any;

+    onmouseup: (this: HTMLElement, ev: MouseEvent) => any;

+    onmousewheel: (this: HTMLElement, ev: WheelEvent) => any;

+    onmscontentzoom: (this: HTMLElement, ev: UIEvent) => any;

+    onmsmanipulationstatechanged: (this: HTMLElement, ev: MSManipulationEvent) => any;

+    onpaste: (this: HTMLElement, ev: ClipboardEvent) => any;

+    onpause: (this: HTMLElement, ev: Event) => any;

+    onplay: (this: HTMLElement, ev: Event) => any;

+    onplaying: (this: HTMLElement, ev: Event) => any;

+    onprogress: (this: HTMLElement, ev: ProgressEvent) => any;

+    onratechange: (this: HTMLElement, ev: Event) => any;

+    onreset: (this: HTMLElement, ev: Event) => any;

+    onscroll: (this: HTMLElement, ev: UIEvent) => any;

+    onseeked: (this: HTMLElement, ev: Event) => any;

+    onseeking: (this: HTMLElement, ev: Event) => any;

+    onselect: (this: HTMLElement, ev: UIEvent) => any;

+    onselectstart: (this: HTMLElement, ev: Event) => any;

+    onstalled: (this: HTMLElement, ev: Event) => any;

+    onsubmit: (this: HTMLElement, ev: Event) => any;

+    onsuspend: (this: HTMLElement, ev: Event) => any;

+    ontimeupdate: (this: HTMLElement, ev: Event) => any;

+    onvolumechange: (this: HTMLElement, ev: Event) => any;

+    onwaiting: (this: HTMLElement, ev: Event) => any;

     outerHTML: string;

     outerText: string;

     spellcheck: boolean;

@@ -10513,109 +10131,7 @@ interface HTMLElement extends Element {
     focus(): void;

     msGetInputContext(): MSInputMethodContext;

     setActive(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10671,6 +10187,7 @@ interface HTMLEmbedElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10710,6 +10227,8 @@ interface HTMLFieldSetElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLFieldSetElement: {

@@ -10722,6 +10241,7 @@ interface HTMLFontElement extends HTMLElement, DOML2DeprecatedColorProperty, DOM
       * Sets or retrieves the current typeface family.

       */

     face: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10797,6 +10317,8 @@ interface HTMLFormElement extends HTMLElement {
       * Fires when a FORM is about to be submitted.

       */

     submit(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -10805,6 +10327,10 @@ declare var HTMLFormElement: {
     new(): HTMLFormElement;

 }

 

+interface HTMLFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Specifies the properties of a border drawn around an object.

@@ -10857,7 +10383,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLFrameElement, ev: Event) => any;

     /**

       * Sets or retrieves whether the frame can be scrolled.

       */

@@ -10870,110 +10396,7 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string | number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameElementEventMap>(type: K, listener: (this: HTMLFrameElement, ev: HTMLFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -10982,6 +10405,25 @@ declare var HTMLFrameElement: {
     new(): HTMLFrameElement;

 }

 

+interface HTMLFrameSetElementEventMap extends HTMLElementEventMap {

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "error": ErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "load": Event;

+    "message": MessageEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "resize": UIEvent;

+    "storage": StorageEvent;

+    "unload": Event;

+}

+

 interface HTMLFrameSetElement extends HTMLElement {

     border: string;

     /**

@@ -11001,152 +10443,34 @@ interface HTMLFrameSetElement extends HTMLElement {
       */

     frameSpacing: any;

     name: string;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

+    onafterprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeprint: (this: HTMLFrameSetElement, ev: Event) => any;

+    onbeforeunload: (this: HTMLFrameSetElement, ev: BeforeUnloadEvent) => any;

     /**

       * Fires when the object loses the input focus.

       */

-    onblur: (this: this, ev: FocusEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onblur: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onerror: (this: HTMLFrameSetElement, ev: ErrorEvent) => any;

     /**

       * Fires when the object receives focus.

       */

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onunload: (this: this, ev: Event) => any;

+    onfocus: (this: HTMLFrameSetElement, ev: FocusEvent) => any;

+    onhashchange: (this: HTMLFrameSetElement, ev: HashChangeEvent) => any;

+    onload: (this: HTMLFrameSetElement, ev: Event) => any;

+    onmessage: (this: HTMLFrameSetElement, ev: MessageEvent) => any;

+    onoffline: (this: HTMLFrameSetElement, ev: Event) => any;

+    ononline: (this: HTMLFrameSetElement, ev: Event) => any;

+    onorientationchange: (this: HTMLFrameSetElement, ev: Event) => any;

+    onpagehide: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onpageshow: (this: HTMLFrameSetElement, ev: PageTransitionEvent) => any;

+    onresize: (this: HTMLFrameSetElement, ev: UIEvent) => any;

+    onstorage: (this: HTMLFrameSetElement, ev: StorageEvent) => any;

+    onunload: (this: HTMLFrameSetElement, ev: Event) => any;

     /**

       * Sets or retrieves the frame heights of the object.

       */

     rows: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLFrameSetElementEventMap>(type: K, listener: (this: HTMLFrameSetElement, ev: HTMLFrameSetElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11168,6 +10492,7 @@ interface HTMLHRElement extends HTMLElement, DOML2DeprecatedColorProperty, DOML2
       * Sets or retrieves the width of the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11178,6 +10503,8 @@ declare var HTMLHRElement: {
 

 interface HTMLHeadElement extends HTMLElement {

     profile: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadElement: {

@@ -11190,6 +10517,8 @@ interface HTMLHeadingElement extends HTMLElement {
       * Sets or retrieves a value that indicates the table alignment.

       */

     align: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHeadingElement: {

@@ -11202,6 +10531,8 @@ interface HTMLHtmlElement extends HTMLElement {
       * Sets or retrieves the DTD version that governs the current document.

       */

     version: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLHtmlElement: {

@@ -11209,6 +10540,10 @@ declare var HTMLHtmlElement: {
     new(): HTMLHtmlElement;

 }

 

+interface HTMLIFrameElementEventMap extends HTMLElementEventMap {

+    "load": Event;

+}

+

 interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {

     /**

       * Sets or retrieves how the object is aligned with adjacent text.

@@ -11266,7 +10601,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
     /**

       * Raised when the object has been completely received from the server.

       */

-    onload: (this: this, ev: Event) => any;

+    onload: (this: HTMLIFrameElement, ev: Event) => any;

     readonly sandbox: DOMSettableTokenList;

     /**

       * Sets or retrieves whether the frame can be scrolled.

@@ -11284,110 +10619,7 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.

       */

     width: string;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLIFrameElementEventMap>(type: K, listener: (this: HTMLIFrameElement, ev: HTMLIFrameElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11478,6 +10710,8 @@ interface HTMLImageElement extends HTMLElement {
     readonly x: number;

     readonly y: number;

     msGetAsCastingSource(): any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLImageElement: {

@@ -11689,6 +10923,8 @@ interface HTMLInputElement extends HTMLElement {
       * @param n Value to increment the value by.

       */

     stepUp(n?: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLInputElement: {

@@ -11702,6 +10938,8 @@ interface HTMLLIElement extends HTMLElement {
       * Sets or retrieves the value of a list item.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLIElement: {

@@ -11718,6 +10956,8 @@ interface HTMLLabelElement extends HTMLElement {
       * Sets or retrieves the object to which the given label object is assigned.

       */

     htmlFor: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLabelElement: {

@@ -11734,6 +10974,8 @@ interface HTMLLegendElement extends HTMLElement {
       * Retrieves a reference to the form that the object is embedded in.

       */

     readonly form: HTMLFormElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLLegendElement: {

@@ -11777,6 +11019,7 @@ interface HTMLLinkElement extends HTMLElement, LinkStyle {
     type: string;

     import?: Document;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11794,6 +11037,8 @@ interface HTMLMapElement extends HTMLElement {
       * Sets or retrieves the name of the object.

       */

     name: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMapElement: {

@@ -11801,6 +11046,12 @@ declare var HTMLMapElement: {
     new(): HTMLMapElement;

 }

 

+interface HTMLMarqueeElementEventMap extends HTMLElementEventMap {

+    "bounce": Event;

+    "finish": Event;

+    "start": Event;

+}

+

 interface HTMLMarqueeElement extends HTMLElement {

     behavior: string;

     bgColor: any;

@@ -11808,9 +11059,9 @@ interface HTMLMarqueeElement extends HTMLElement {
     height: string;

     hspace: number;

     loop: number;

-    onbounce: (this: this, ev: Event) => any;

-    onfinish: (this: this, ev: Event) => any;

-    onstart: (this: this, ev: Event) => any;

+    onbounce: (this: HTMLMarqueeElement, ev: Event) => any;

+    onfinish: (this: HTMLMarqueeElement, ev: Event) => any;

+    onstart: (this: HTMLMarqueeElement, ev: Event) => any;

     scrollAmount: number;

     scrollDelay: number;

     trueSpeed: boolean;

@@ -11818,112 +11069,7 @@ interface HTMLMarqueeElement extends HTMLElement {
     width: string;

     start(): void;

     stop(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "bounce", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "finish", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "start", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMarqueeElementEventMap>(type: K, listener: (this: HTMLMarqueeElement, ev: HTMLMarqueeElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -11932,6 +11078,11 @@ declare var HTMLMarqueeElement: {
     new(): HTMLMarqueeElement;

 }

 

+interface HTMLMediaElementEventMap extends HTMLElementEventMap {

+    "encrypted": MediaEncryptedEvent;

+    "msneedkey": MSMediaKeyNeededEvent;

+}

+

 interface HTMLMediaElement extends HTMLElement {

     /**

       * Returns an AudioTrackList object with the audio tracks for a given video element.

@@ -12021,8 +11172,8 @@ interface HTMLMediaElement extends HTMLElement {
       * Gets the current network activity for the element.

       */

     readonly networkState: number;

-    onencrypted: (this: this, ev: MediaEncryptedEvent) => any;

-    onmsneedkey: (this: this, ev: MSMediaKeyNeededEvent) => any;

+    onencrypted: (this: HTMLMediaElement, ev: MediaEncryptedEvent) => any;

+    onmsneedkey: (this: HTMLMediaElement, ev: MSMediaKeyNeededEvent) => any;

     /**

       * Gets a flag that specifies whether playback is paused.

       */

@@ -12100,111 +11251,7 @@ interface HTMLMediaElement extends HTMLElement {
     readonly NETWORK_IDLE: number;

     readonly NETWORK_LOADING: number;

     readonly NETWORK_NO_SOURCE: number;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12225,6 +11272,8 @@ declare var HTMLMediaElement: {
 interface HTMLMenuElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMenuElement: {

@@ -12257,6 +11306,8 @@ interface HTMLMetaElement extends HTMLElement {
       * Sets or retrieves the URL property that will be loaded after the specified time has elapsed. 

       */

     url: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMetaElement: {

@@ -12271,6 +11322,8 @@ interface HTMLMeterElement extends HTMLElement {
     min: number;

     optimum: number;

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLMeterElement: {

@@ -12287,6 +11340,8 @@ interface HTMLModElement extends HTMLElement {
       * Sets or retrieves the date and time of a modification to the object.

       */

     dateTime: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLModElement: {

@@ -12301,6 +11356,8 @@ interface HTMLOListElement extends HTMLElement {
       */

     start: number;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOListElement: {

@@ -12420,6 +11477,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12458,6 +11516,8 @@ interface HTMLOptGroupElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptGroupElement: {

@@ -12495,6 +11555,8 @@ interface HTMLOptionElement extends HTMLElement {
       * Sets or retrieves the value which is returned to the server when the form control is submitted.

       */

     value: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLOptionElement: {

@@ -12521,6 +11583,8 @@ interface HTMLParagraphElement extends HTMLElement {
       */

     align: string;

     clear: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParagraphElement: {

@@ -12545,6 +11609,8 @@ interface HTMLParamElement extends HTMLElement {
       * Sets or retrieves the data type of the value attribute.

       */

     valueType: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLParamElement: {

@@ -12553,6 +11619,8 @@ declare var HTMLParamElement: {
 }

 

 interface HTMLPictureElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPictureElement: {

@@ -12565,6 +11633,8 @@ interface HTMLPreElement extends HTMLElement {
       * Sets or gets a value that you can use to implement your own width functionality for the object.

       */

     width: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLPreElement: {

@@ -12589,6 +11659,8 @@ interface HTMLProgressElement extends HTMLElement {
       * Sets or gets the current value of a progress element. The value must be a non-negative number between 0 and the max value.

       */

     value: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLProgressElement: {

@@ -12601,6 +11673,8 @@ interface HTMLQuoteElement extends HTMLElement {
       * Sets or retrieves reference information about the object.

       */

     cite: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLQuoteElement: {

@@ -12639,6 +11713,8 @@ interface HTMLScriptElement extends HTMLElement {
       */

     type: string;

     integrity: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLScriptElement: {

@@ -12733,6 +11809,8 @@ interface HTMLSelectElement extends HTMLElement {
       * @param error Sets a custom error message that is displayed when a form is submitted.

       */

     setCustomValidity(error: string): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [name: string]: any;

 }

 

@@ -12757,6 +11835,8 @@ interface HTMLSourceElement extends HTMLElement {
      * Gets or sets the MIME type of a media resource.

      */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSourceElement: {

@@ -12765,6 +11845,8 @@ declare var HTMLSourceElement: {
 }

 

 interface HTMLSpanElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLSpanElement: {

@@ -12782,6 +11864,7 @@ interface HTMLStyleElement extends HTMLElement, LinkStyle {
       * Retrieves the CSS language in which the style sheet is written.

       */

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12799,6 +11882,8 @@ interface HTMLTableCaptionElement extends HTMLElement {
       * Sets or retrieves whether the caption appears at the top or bottom of the table.

       */

     vAlign: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableCaptionElement: {

@@ -12852,6 +11937,7 @@ interface HTMLTableCellElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12873,6 +11959,7 @@ interface HTMLTableColElement extends HTMLElement, HTMLTableAlignment {
       * Sets or retrieves the width of the object.

       */

     width: any;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -12993,6 +12080,8 @@ interface HTMLTableElement extends HTMLElement {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTableElement: {

@@ -13044,6 +12133,7 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the cell in the tr. The default value is -1, which appends the new cell to the end of the cells collection.

       */

     insertCell(index?: number): HTMLTableDataCellElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13071,6 +12161,7 @@ interface HTMLTableSectionElement extends HTMLElement, HTMLTableAlignment {
       * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.

       */

     insertRow(index?: number): HTMLTableRowElement;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13081,6 +12172,8 @@ declare var HTMLTableSectionElement: {
 

 interface HTMLTemplateElement extends HTMLElement {

     readonly content: DocumentFragment;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTemplateElement: {

@@ -13186,6 +12279,8 @@ interface HTMLTextAreaElement extends HTMLElement {
       * @param end The offset into the text field for the end of the selection.

       */

     setSelectionRange(start: number, end: number): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTextAreaElement: {

@@ -13198,6 +12293,8 @@ interface HTMLTitleElement extends HTMLElement {
       * Retrieves or sets the text of the object as a string. 

       */

     text: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTitleElement: {

@@ -13217,6 +12314,8 @@ interface HTMLTrackElement extends HTMLElement {
     readonly LOADED: number;

     readonly LOADING: number;

     readonly NONE: number;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLTrackElement: {

@@ -13231,6 +12330,8 @@ declare var HTMLTrackElement: {
 interface HTMLUListElement extends HTMLElement {

     compact: boolean;

     type: string;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUListElement: {

@@ -13239,6 +12340,8 @@ declare var HTMLUListElement: {
 }

 

 interface HTMLUnknownElement extends HTMLElement {

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var HTMLUnknownElement: {

@@ -13246,6 +12349,12 @@ declare var HTMLUnknownElement: {
     new(): HTMLUnknownElement;

 }

 

+interface HTMLVideoElementEventMap extends HTMLMediaElementEventMap {

+    "MSVideoFormatChanged": Event;

+    "MSVideoFrameStepCompleted": Event;

+    "MSVideoOptimalLayoutChanged": Event;

+}

+

 interface HTMLVideoElement extends HTMLMediaElement {

     /**

       * Gets or sets the height of the video element.

@@ -13257,9 +12366,9 @@ interface HTMLVideoElement extends HTMLMediaElement {
     msStereo3DPackingMode: string;

     msStereo3DRenderMode: string;

     msZoom: boolean;

-    onMSVideoFormatChanged: (this: this, ev: Event) => any;

-    onMSVideoFrameStepCompleted: (this: this, ev: Event) => any;

-    onMSVideoOptimalLayoutChanged: (this: this, ev: Event) => any;

+    onMSVideoFormatChanged: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoFrameStepCompleted: (this: HTMLVideoElement, ev: Event) => any;

+    onMSVideoOptimalLayoutChanged: (this: HTMLVideoElement, ev: Event) => any;

     /**

       * Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.

       */

@@ -13286,114 +12395,7 @@ interface HTMLVideoElement extends HTMLMediaElement {
     webkitEnterFullscreen(): void;

     webkitExitFullScreen(): void;

     webkitExitFullscreen(): void;

-    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFormatChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoFrameStepCompleted", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSVideoOptimalLayoutChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof HTMLVideoElementEventMap>(type: K, listener: (this: HTMLVideoElement, ev: HTMLVideoElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13461,11 +12463,16 @@ declare var IDBCursorWithValue: {
     new(): IDBCursorWithValue;

 }

 

+interface IDBDatabaseEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBDatabase extends EventTarget {

     readonly name: string;

     readonly objectStoreNames: DOMStringList;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBDatabase, ev: Event) => any;

+    onerror: (this: IDBDatabase, ev: ErrorEvent) => any;

     version: number;

     onversionchange: (ev: IDBVersionChangeEvent) => any;

     close(): void;

@@ -13473,8 +12480,7 @@ interface IDBDatabase extends EventTarget {
     deleteObjectStore(name: string): void;

     transaction(storeNames: string | string[], mode?: string): IDBTransaction;

     addEventListener(type: "versionchange", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13551,13 +12557,15 @@ declare var IDBObjectStore: {
     new(): IDBObjectStore;

 }

 

+interface IDBOpenDBRequestEventMap extends IDBRequestEventMap {

+    "blocked": Event;

+    "upgradeneeded": IDBVersionChangeEvent;

+}

+

 interface IDBOpenDBRequest extends IDBRequest {

-    onblocked: (this: this, ev: Event) => any;

-    onupgradeneeded: (this: this, ev: IDBVersionChangeEvent) => any;

-    addEventListener(type: "blocked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "upgradeneeded", listener: (this: this, ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

+    onblocked: (this: IDBOpenDBRequest, ev: Event) => any;

+    onupgradeneeded: (this: IDBOpenDBRequest, ev: IDBVersionChangeEvent) => any;

+    addEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13566,16 +12574,20 @@ declare var IDBOpenDBRequest: {
     new(): IDBOpenDBRequest;

 }

 

+interface IDBRequestEventMap {

+    "error": ErrorEvent;

+    "success": Event;

+}

+

 interface IDBRequest extends EventTarget {

     readonly error: DOMError;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onsuccess: (this: this, ev: Event) => any;

+    onerror: (this: IDBRequest, ev: ErrorEvent) => any;

+    onsuccess: (this: IDBRequest, ev: Event) => any;

     readonly readyState: string;

     readonly result: any;

     source: IDBObjectStore | IDBIndex | IDBCursor;

     readonly transaction: IDBTransaction;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13584,21 +12596,25 @@ declare var IDBRequest: {
     new(): IDBRequest;

 }

 

+interface IDBTransactionEventMap {

+    "abort": Event;

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBTransaction extends EventTarget {

     readonly db: IDBDatabase;

     readonly error: DOMError;

     readonly mode: string;

-    onabort: (this: this, ev: Event) => any;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBTransaction, ev: Event) => any;

+    oncomplete: (this: IDBTransaction, ev: Event) => any;

+    onerror: (this: IDBTransaction, ev: ErrorEvent) => any;

     abort(): void;

     objectStore(name: string): IDBObjectStore;

     readonly READ_ONLY: string;

     readonly READ_WRITE: string;

     readonly VERSION_CHANGE: string;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13731,18 +12747,22 @@ interface MSApp {
 }

 declare var MSApp: MSApp;

 

+interface MSAppAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSAppAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSAppAsyncOperation, ev: Event) => any;

+    onerror: (this: MSAppAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     start(): void;

     readonly COMPLETED: number;

     readonly ERROR: number;

     readonly STARTED: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSAppAsyncOperationEventMap>(type: K, listener: (this: MSAppAsyncOperation, ev: MSAppAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -13897,6 +12917,8 @@ interface MSHTMLWebViewElement extends HTMLElement {
     navigateWithHttpRequestMessage(requestMessage: any): void;

     refresh(): void;

     stop(): void;

+    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var MSHTMLWebViewElement: {

@@ -13904,20 +12926,24 @@ declare var MSHTMLWebViewElement: {
     new(): MSHTMLWebViewElement;

 }

 

+interface MSInputMethodContextEventMap {

+    "MSCandidateWindowHide": Event;

+    "MSCandidateWindowShow": Event;

+    "MSCandidateWindowUpdate": Event;

+}

+

 interface MSInputMethodContext extends EventTarget {

     readonly compositionEndOffset: number;

     readonly compositionStartOffset: number;

-    oncandidatewindowhide: (this: this, ev: Event) => any;

-    oncandidatewindowshow: (this: this, ev: Event) => any;

-    oncandidatewindowupdate: (this: this, ev: Event) => any;

+    oncandidatewindowhide: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowshow: (this: MSInputMethodContext, ev: Event) => any;

+    oncandidatewindowupdate: (this: MSInputMethodContext, ev: Event) => any;

     readonly target: HTMLElement;

     getCandidateWindowClientRect(): ClientRect;

     getCompositionAlternatives(): string[];

     hasComposition(): boolean;

     isCandidateWindowVisible(): boolean;

-    addEventListener(type: "MSCandidateWindowHide", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowShow", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSCandidateWindowUpdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSInputMethodContextEventMap>(type: K, listener: (this: MSInputMethodContext, ev: MSInputMethodContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14083,6 +13109,7 @@ interface MSStreamReader extends EventTarget, MSBaseReader {
     readAsBlob(stream: MSStream, size?: number): void;

     readAsDataURL(stream: MSStream, size?: number): void;

     readAsText(stream: MSStream, encoding?: string, size?: number): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14091,10 +13118,15 @@ declare var MSStreamReader: {
     new(): MSStreamReader;

 }

 

+interface MSWebViewAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSWebViewAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSWebViewAsyncOperation, ev: Event) => any;

+    onerror: (this: MSWebViewAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     readonly target: MSHTMLWebViewElement;

@@ -14106,8 +13138,7 @@ interface MSWebViewAsyncOperation extends EventTarget {
     readonly TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;

     readonly TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;

     readonly TYPE_INVOKE_SCRIPT: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSWebViewAsyncOperationEventMap>(type: K, listener: (this: MSWebViewAsyncOperation, ev: MSWebViewAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14144,12 +13175,16 @@ declare var MediaDeviceInfo: {
     new(): MediaDeviceInfo;

 }

 

+interface MediaDevicesEventMap {

+    "devicechange": Event;

+}

+

 interface MediaDevices extends EventTarget {

-    ondevicechange: (this: this, ev: Event) => any;

+    ondevicechange: (this: MediaDevices, ev: Event) => any;

     enumerateDevices(): any;

     getSupportedConstraints(): MediaTrackSupportedConstraints;

     getUserMedia(constraints: MediaStreamConstraints): PromiseLike<MediaStream>;

-    addEventListener(type: "devicechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaDevicesEventMap>(type: K, listener: (this: MediaDevices, ev: MediaDevicesEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14299,13 +13334,20 @@ declare var MediaSource: {
     isTypeSupported(type: string): boolean;

 }

 

+interface MediaStreamEventMap {

+    "active": Event;

+    "addtrack": TrackEvent;

+    "inactive": Event;

+    "removetrack": TrackEvent;

+}

+

 interface MediaStream extends EventTarget {

     readonly active: boolean;

     readonly id: string;

-    onactive: (this: this, ev: Event) => any;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    oninactive: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onactive: (this: MediaStream, ev: Event) => any;

+    onaddtrack: (this: MediaStream, ev: TrackEvent) => any;

+    oninactive: (this: MediaStream, ev: Event) => any;

+    onremovetrack: (this: MediaStream, ev: TrackEvent) => any;

     addTrack(track: MediaStreamTrack): void;

     clone(): MediaStream;

     getAudioTracks(): MediaStreamTrack[];

@@ -14314,10 +13356,7 @@ interface MediaStream extends EventTarget {
     getVideoTracks(): MediaStreamTrack[];

     removeTrack(track: MediaStreamTrack): void;

     stop(): void;

-    addEventListener(type: "active", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "inactive", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: MediaStream, ev: MediaStreamEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14354,16 +13393,23 @@ declare var MediaStreamErrorEvent: {
     new(type: string, eventInitDict?: MediaStreamErrorEventInit): MediaStreamErrorEvent;

 }

 

+interface MediaStreamTrackEventMap {

+    "ended": MediaStreamErrorEvent;

+    "mute": Event;

+    "overconstrained": MediaStreamErrorEvent;

+    "unmute": Event;

+}

+

 interface MediaStreamTrack extends EventTarget {

     enabled: boolean;

     readonly id: string;

     readonly kind: string;

     readonly label: string;

     readonly muted: boolean;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

-    onmute: (this: this, ev: Event) => any;

-    onoverconstrained: (this: this, ev: MediaStreamErrorEvent) => any;

-    onunmute: (this: this, ev: Event) => any;

+    onended: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onmute: (this: MediaStreamTrack, ev: Event) => any;

+    onoverconstrained: (this: MediaStreamTrack, ev: MediaStreamErrorEvent) => any;

+    onunmute: (this: MediaStreamTrack, ev: Event) => any;

     readonly readonly: boolean;

     readonly readyState: string;

     readonly remote: boolean;

@@ -14373,10 +13419,7 @@ interface MediaStreamTrack extends EventTarget {
     getConstraints(): MediaTrackConstraints;

     getSettings(): MediaTrackSettings;

     stop(): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "overconstrained", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "unmute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MediaStreamTrackEventMap>(type: K, listener: (this: MediaStreamTrack, ev: MediaStreamTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14417,12 +13460,16 @@ declare var MessageEvent: {
     new(type: string, eventInitDict?: MessageEventInit): MessageEvent;

 }

 

+interface MessagePortEventMap {

+    "message": MessageEvent;

+}

+

 interface MessagePort extends EventTarget {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: MessagePort, ev: MessageEvent) => any;

     close(): void;

     postMessage(message?: any, ports?: any): void;

     start(): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14600,7 +13647,6 @@ interface Navigator extends Object, NavigatorID, NavigatorOnLine, NavigatorConte
     msLaunchUri(uri: string, successCallback?: MSLaunchUriCallback, noHandlerCallback?: MSLaunchUriCallback): void;

     requestMediaKeySystemAccess(keySystem: string, supportedConfigurations: MediaKeySystemConfiguration[]): PromiseLike<MediaKeySystemAccess>;

     vibrate(pattern: number | number[]): boolean;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var Navigator: {

@@ -14775,10 +13821,14 @@ declare var OfflineAudioCompletionEvent: {
     new(): OfflineAudioCompletionEvent;

 }

 

+interface OfflineAudioContextEventMap {

+    "complete": Event;

+}

+

 interface OfflineAudioContext extends AudioContext {

-    oncomplete: (this: this, ev: Event) => any;

+    oncomplete: (this: OfflineAudioContext, ev: Event) => any;

     startRendering(): PromiseLike<AudioBuffer>;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OfflineAudioContextEventMap>(type: K, listener: (this: OfflineAudioContext, ev: OfflineAudioContextEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -14787,15 +13837,19 @@ declare var OfflineAudioContext: {
     new(numberOfChannels: number, length: number, sampleRate: number): OfflineAudioContext;

 }

 

+interface OscillatorNodeEventMap {

+    "ended": MediaStreamErrorEvent;

+}

+

 interface OscillatorNode extends AudioNode {

     readonly detune: AudioParam;

     readonly frequency: AudioParam;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onended: (this: OscillatorNode, ev: MediaStreamErrorEvent) => any;

     type: string;

     setPeriodicWave(periodicWave: PeriodicWave): void;

     start(when?: number): void;

     stop(when?: number): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof OscillatorNodeEventMap>(type: K, listener: (this: OscillatorNode, ev: OscillatorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15174,9 +14228,14 @@ declare var RTCDTMFToneChangeEvent: {
     new(type: string, eventInitDict: RTCDTMFToneChangeEventInit): RTCDTMFToneChangeEvent;

 }

 

+interface RTCDtlsTransportEventMap {

+    "dtlsstatechange": RTCDtlsTransportStateChangedEvent;

+    "error": ErrorEvent;

+}

+

 interface RTCDtlsTransport extends RTCStatsProvider {

-    ondtlsstatechange: ((this: this, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    ondtlsstatechange: ((this: RTCDtlsTransport, ev: RTCDtlsTransportStateChangedEvent) => any) | null;

+    onerror: ((this: RTCDtlsTransport, ev: ErrorEvent) => any) | null;

     readonly state: string;

     readonly transport: RTCIceTransport;

     getLocalParameters(): RTCDtlsParameters;

@@ -15184,8 +14243,7 @@ interface RTCDtlsTransport extends RTCStatsProvider {
     getRemoteParameters(): RTCDtlsParameters | null;

     start(remoteParameters: RTCDtlsParameters): void;

     stop(): void;

-    addEventListener(type: "dtlsstatechange", listener: (this: this, ev: RTCDtlsTransportStateChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtlsTransportEventMap>(type: K, listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15203,15 +14261,19 @@ declare var RTCDtlsTransportStateChangedEvent: {
     new(): RTCDtlsTransportStateChangedEvent;

 }

 

+interface RTCDtmfSenderEventMap {

+    "tonechange": RTCDTMFToneChangeEvent;

+}

+

 interface RTCDtmfSender extends EventTarget {

     readonly canInsertDTMF: boolean;

     readonly duration: number;

     readonly interToneGap: number;

-    ontonechange: (this: this, ev: RTCDTMFToneChangeEvent) => any;

+    ontonechange: (this: RTCDtmfSender, ev: RTCDTMFToneChangeEvent) => any;

     readonly sender: RTCRtpSender;

     readonly toneBuffer: string;

     insertDTMF(tones: string, duration?: number, interToneGap?: number): void;

-    addEventListener(type: "tonechange", listener: (this: this, ev: RTCDTMFToneChangeEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCDtmfSenderEventMap>(type: K, listener: (this: RTCDtmfSender, ev: RTCDtmfSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15229,15 +14291,19 @@ declare var RTCIceCandidatePairChangedEvent: {
     new(): RTCIceCandidatePairChangedEvent;

 }

 

+interface RTCIceGathererEventMap {

+    "error": ErrorEvent;

+    "localcandidate": RTCIceGathererEvent;

+}

+

 interface RTCIceGatherer extends RTCStatsProvider {

     readonly component: string;

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onlocalcandidate: ((this: this, ev: RTCIceGathererEvent) => any) | null;

+    onerror: ((this: RTCIceGatherer, ev: ErrorEvent) => any) | null;

+    onlocalcandidate: ((this: RTCIceGatherer, ev: RTCIceGathererEvent) => any) | null;

     createAssociatedGatherer(): RTCIceGatherer;

     getLocalCandidates(): RTCIceCandidate[];

     getLocalParameters(): RTCIceParameters;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "localcandidate", listener: (this: this, ev: RTCIceGathererEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceGathererEventMap>(type: K, listener: (this: RTCIceGatherer, ev: RTCIceGathererEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15255,11 +14321,16 @@ declare var RTCIceGathererEvent: {
     new(): RTCIceGathererEvent;

 }

 

+interface RTCIceTransportEventMap {

+    "candidatepairchange": RTCIceCandidatePairChangedEvent;

+    "icestatechange": RTCIceTransportStateChangedEvent;

+}

+

 interface RTCIceTransport extends RTCStatsProvider {

     readonly component: string;

     readonly iceGatherer: RTCIceGatherer | null;

-    oncandidatepairchange: ((this: this, ev: RTCIceCandidatePairChangedEvent) => any) | null;

-    onicestatechange: ((this: this, ev: RTCIceTransportStateChangedEvent) => any) | null;

+    oncandidatepairchange: ((this: RTCIceTransport, ev: RTCIceCandidatePairChangedEvent) => any) | null;

+    onicestatechange: ((this: RTCIceTransport, ev: RTCIceTransportStateChangedEvent) => any) | null;

     readonly role: string;

     readonly state: string;

     addRemoteCandidate(remoteCandidate: RTCIceCandidate | RTCIceCandidateComplete): void;

@@ -15270,8 +14341,7 @@ interface RTCIceTransport extends RTCStatsProvider {
     setRemoteCandidates(remoteCandidates: RTCIceCandidate[]): void;

     start(gatherer: RTCIceGatherer, remoteParameters: RTCIceParameters, role?: string): void;

     stop(): void;

-    addEventListener(type: "candidatepairchange", listener: (this: this, ev: RTCIceCandidatePairChangedEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "icestatechange", listener: (this: this, ev: RTCIceTransportStateChangedEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCIceTransportEventMap>(type: K, listener: (this: RTCIceTransport, ev: RTCIceTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15289,8 +14359,12 @@ declare var RTCIceTransportStateChangedEvent: {
     new(): RTCIceTransportStateChangedEvent;

 }

 

+interface RTCRtpReceiverEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCRtpReceiver extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCRtpReceiver, ev: ErrorEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack | null;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -15299,7 +14373,7 @@ interface RTCRtpReceiver extends RTCStatsProvider {
     requestSendCSRC(csrc: number): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpReceiverEventMap>(type: K, listener: (this: RTCRtpReceiver, ev: RTCRtpReceiverEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15309,9 +14383,14 @@ declare var RTCRtpReceiver: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCRtpSenderEventMap {

+    "error": ErrorEvent;

+    "ssrcconflict": RTCSsrcConflictEvent;

+}

+

 interface RTCRtpSender extends RTCStatsProvider {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

-    onssrcconflict: ((this: this, ev: RTCSsrcConflictEvent) => any) | null;

+    onerror: ((this: RTCRtpSender, ev: ErrorEvent) => any) | null;

+    onssrcconflict: ((this: RTCRtpSender, ev: RTCSsrcConflictEvent) => any) | null;

     readonly rtcpTransport: RTCDtlsTransport;

     readonly track: MediaStreamTrack;

     readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;

@@ -15319,8 +14398,7 @@ interface RTCRtpSender extends RTCStatsProvider {
     setTrack(track: MediaStreamTrack): void;

     setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;

     stop(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ssrcconflict", listener: (this: this, ev: RTCSsrcConflictEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCRtpSenderEventMap>(type: K, listener: (this: RTCRtpSender, ev: RTCRtpSenderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15330,10 +14408,14 @@ declare var RTCRtpSender: {
     getCapabilities(kind?: string): RTCRtpCapabilities;

 }

 

+interface RTCSrtpSdesTransportEventMap {

+    "error": ErrorEvent;

+}

+

 interface RTCSrtpSdesTransport extends EventTarget {

-    onerror: ((this: this, ev: ErrorEvent) => any) | null;

+    onerror: ((this: RTCSrtpSdesTransport, ev: ErrorEvent) => any) | null;

     readonly transport: RTCIceTransport;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof RTCSrtpSdesTransportEventMap>(type: K, listener: (this: RTCSrtpSdesTransport, ev: RTCSrtpSdesTransportEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15408,6 +14490,7 @@ declare var Range: {
 

 interface SVGAElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {

     readonly target: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15564,6 +14647,7 @@ interface SVGCircleElement extends SVGElement, SVGStylable, SVGTransformable, SV
     readonly cx: SVGAnimatedLength;

     readonly cy: SVGAnimatedLength;

     readonly r: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15574,6 +14658,7 @@ declare var SVGCircleElement: {
 

 interface SVGClipPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGUnitTypes {

     readonly clipPathUnits: SVGAnimatedEnumeration;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15596,6 +14681,8 @@ interface SVGComponentTransferFunctionElement extends SVGElement {
     readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;

     readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGComponentTransferFunctionElement: {

@@ -15610,6 +14697,7 @@ declare var SVGComponentTransferFunctionElement: {
 }

 

 interface SVGDefsElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15619,6 +14707,7 @@ declare var SVGDefsElement: {
 }

 

 interface SVGDescElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15627,67 +14716,35 @@ declare var SVGDescElement: {
     new(): SVGDescElement;

 }

 

+interface SVGElementEventMap extends ElementEventMap {

+    "click": MouseEvent;

+    "dblclick": MouseEvent;

+    "focusin": FocusEvent;

+    "focusout": FocusEvent;

+    "load": Event;

+    "mousedown": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+}

+

 interface SVGElement extends Element {

-    onclick: (this: this, ev: MouseEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    onfocusin: (this: this, ev: FocusEvent) => any;

-    onfocusout: (this: this, ev: FocusEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

+    onclick: (this: SVGElement, ev: MouseEvent) => any;

+    ondblclick: (this: SVGElement, ev: MouseEvent) => any;

+    onfocusin: (this: SVGElement, ev: FocusEvent) => any;

+    onfocusout: (this: SVGElement, ev: FocusEvent) => any;

+    onload: (this: SVGElement, ev: Event) => any;

+    onmousedown: (this: SVGElement, ev: MouseEvent) => any;

+    onmousemove: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseout: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseover: (this: SVGElement, ev: MouseEvent) => any;

+    onmouseup: (this: SVGElement, ev: MouseEvent) => any;

     readonly ownerSVGElement: SVGSVGElement;

     readonly viewportElement: SVGElement;

     xmlbase: string;

     className: any;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15727,6 +14784,7 @@ interface SVGEllipseElement extends SVGElement, SVGStylable, SVGTransformable, S
     readonly cy: SVGAnimatedLength;

     readonly rx: SVGAnimatedLength;

     readonly ry: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15756,6 +14814,7 @@ interface SVGFEBlendElement extends SVGElement, SVGFilterPrimitiveStandardAttrib
     readonly SVG_FEBLEND_MODE_SCREEN: number;

     readonly SVG_FEBLEND_MODE_SOFT_LIGHT: number;

     readonly SVG_FEBLEND_MODE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15790,6 +14849,7 @@ interface SVGFEColorMatrixElement extends SVGElement, SVGFilterPrimitiveStandard
     readonly SVG_FECOLORMATRIX_TYPE_MATRIX: number;

     readonly SVG_FECOLORMATRIX_TYPE_SATURATE: number;

     readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15805,6 +14865,7 @@ declare var SVGFEColorMatrixElement: {
 

 interface SVGFEComponentTransferElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15828,6 +14889,7 @@ interface SVGFECompositeElement extends SVGElement, SVGFilterPrimitiveStandardAt
     readonly SVG_FECOMPOSITE_OPERATOR_OVER: number;

     readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;

     readonly SVG_FECOMPOSITE_OPERATOR_XOR: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15860,6 +14922,7 @@ interface SVGFEConvolveMatrixElement extends SVGElement, SVGFilterPrimitiveStand
     readonly SVG_EDGEMODE_NONE: number;

     readonly SVG_EDGEMODE_UNKNOWN: number;

     readonly SVG_EDGEMODE_WRAP: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15878,6 +14941,7 @@ interface SVGFEDiffuseLightingElement extends SVGElement, SVGFilterPrimitiveStan
     readonly kernelUnitLengthX: SVGAnimatedNumber;

     readonly kernelUnitLengthY: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15897,6 +14961,7 @@ interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStan
     readonly SVG_CHANNEL_G: number;

     readonly SVG_CHANNEL_R: number;

     readonly SVG_CHANNEL_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15913,6 +14978,8 @@ declare var SVGFEDisplacementMapElement: {
 interface SVGFEDistantLightElement extends SVGElement {

     readonly azimuth: SVGAnimatedNumber;

     readonly elevation: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEDistantLightElement: {

@@ -15921,6 +14988,7 @@ declare var SVGFEDistantLightElement: {
 }

 

 interface SVGFEFloodElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15966,6 +15034,7 @@ interface SVGFEGaussianBlurElement extends SVGElement, SVGFilterPrimitiveStandar
     readonly stdDeviationX: SVGAnimatedNumber;

     readonly stdDeviationY: SVGAnimatedNumber;

     setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15976,6 +15045,7 @@ declare var SVGFEGaussianBlurElement: {
 

 interface SVGFEImageElement extends SVGElement, SVGFilterPrimitiveStandardAttributes, SVGLangSpace, SVGURIReference, SVGExternalResourcesRequired {

     readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15985,6 +15055,7 @@ declare var SVGFEImageElement: {
 }

 

 interface SVGFEMergeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -15995,6 +15066,8 @@ declare var SVGFEMergeElement: {
 

 interface SVGFEMergeNodeElement extends SVGElement {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEMergeNodeElement: {

@@ -16010,6 +15083,7 @@ interface SVGFEMorphologyElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_MORPHOLOGY_OPERATOR_DILATE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_ERODE: number;

     readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16025,6 +15099,7 @@ interface SVGFEOffsetElement extends SVGElement, SVGFilterPrimitiveStandardAttri
     readonly dx: SVGAnimatedNumber;

     readonly dy: SVGAnimatedNumber;

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16037,6 +15112,8 @@ interface SVGFEPointLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFEPointLightElement: {

@@ -16051,6 +15128,7 @@ interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveSta
     readonly specularConstant: SVGAnimatedNumber;

     readonly specularExponent: SVGAnimatedNumber;

     readonly surfaceScale: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16068,6 +15146,8 @@ interface SVGFESpotLightElement extends SVGElement {
     readonly x: SVGAnimatedNumber;

     readonly y: SVGAnimatedNumber;

     readonly z: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGFESpotLightElement: {

@@ -16077,6 +15157,7 @@ declare var SVGFESpotLightElement: {
 

 interface SVGFETileElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {

     readonly in1: SVGAnimatedString;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16098,6 +15179,7 @@ interface SVGFETurbulenceElement extends SVGElement, SVGFilterPrimitiveStandardA
     readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: number;

     readonly SVG_TURBULENCE_TYPE_TURBULENCE: number;

     readonly SVG_TURBULENCE_TYPE_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16122,6 +15204,7 @@ interface SVGFilterElement extends SVGElement, SVGUnitTypes, SVGStylable, SVGLan
     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

     setFilterRes(filterResX: number, filterResY: number): void;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16135,6 +15218,7 @@ interface SVGForeignObjectElement extends SVGElement, SVGStylable, SVGTransforma
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16144,6 +15228,7 @@ declare var SVGForeignObjectElement: {
 }

 

 interface SVGGElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16160,6 +15245,7 @@ interface SVGGradientElement extends SVGElement, SVGStylable, SVGExternalResourc
     readonly SVG_SPREADMETHOD_REFLECT: number;

     readonly SVG_SPREADMETHOD_REPEAT: number;

     readonly SVG_SPREADMETHOD_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16178,6 +15264,7 @@ interface SVGImageElement extends SVGElement, SVGStylable, SVGTransformable, SVG
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16243,6 +15330,7 @@ interface SVGLineElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly x2: SVGAnimatedLength;

     readonly y1: SVGAnimatedLength;

     readonly y2: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16279,6 +15367,7 @@ interface SVGMarkerElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExt
     readonly SVG_MARKER_ORIENT_ANGLE: number;

     readonly SVG_MARKER_ORIENT_AUTO: number;

     readonly SVG_MARKER_ORIENT_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16300,6 +15389,7 @@ interface SVGMaskElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16334,6 +15424,8 @@ declare var SVGMatrix: {
 }

 

 interface SVGMetadataElement extends SVGElement {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGMetadataElement: {

@@ -16389,6 +15481,7 @@ interface SVGPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     getPathSegAtLength(distance: number): number;

     getPointAtLength(distance: number): SVGPoint;

     getTotalLength(): number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16681,6 +15774,7 @@ interface SVGPatternElement extends SVGElement, SVGStylable, SVGTests, SVGLangSp
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16717,6 +15811,7 @@ declare var SVGPointList: {
 }

 

 interface SVGPolygonElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16726,6 +15821,7 @@ declare var SVGPolygonElement: {
 }

 

 interface SVGPolylineElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGAnimatedPoints {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16804,6 +15900,7 @@ interface SVGRectElement extends SVGElement, SVGStylable, SVGTransformable, SVGT
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16812,18 +15909,27 @@ declare var SVGRectElement: {
     new(): SVGRectElement;

 }

 

+interface SVGSVGElementEventMap extends SVGElementEventMap {

+    "SVGAbort": Event;

+    "SVGError": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "SVGUnload": Event;

+    "SVGZoom": SVGZoomEvent;

+}

+

 interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTests, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     contentScriptType: string;

     contentStyleType: string;

     currentScale: number;

     readonly currentTranslate: SVGPoint;

     readonly height: SVGAnimatedLength;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onzoom: (this: this, ev: SVGZoomEvent) => any;

+    onabort: (this: SVGSVGElement, ev: Event) => any;

+    onerror: (this: SVGSVGElement, ev: Event) => any;

+    onresize: (this: SVGSVGElement, ev: UIEvent) => any;

+    onscroll: (this: SVGSVGElement, ev: UIEvent) => any;

+    onunload: (this: SVGSVGElement, ev: Event) => any;

+    onzoom: (this: SVGSVGElement, ev: SVGZoomEvent) => any;

     readonly pixelUnitToMillimeterX: number;

     readonly pixelUnitToMillimeterY: number;

     readonly screenPixelToMillimeterX: number;

@@ -16855,58 +15961,7 @@ interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTest
     unpauseAnimations(): void;

     unsuspendRedraw(suspendHandleID: number): void;

     unsuspendRedrawAll(): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGAbort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGError", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGUnload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "SVGZoom", listener: (this: this, ev: SVGZoomEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof SVGSVGElementEventMap>(type: K, listener: (this: SVGSVGElement, ev: SVGSVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16917,6 +15972,7 @@ declare var SVGSVGElement: {
 

 interface SVGScriptElement extends SVGElement, SVGExternalResourcesRequired, SVGURIReference {

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16927,6 +15983,7 @@ declare var SVGScriptElement: {
 

 interface SVGStopElement extends SVGElement, SVGStylable {

     readonly offset: SVGAnimatedNumber;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16956,6 +16013,7 @@ interface SVGStyleElement extends SVGElement, SVGLangSpace {
     media: string;

     title: string;

     type: string;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16965,6 +16023,7 @@ declare var SVGStyleElement: {
 }

 

 interface SVGSwitchElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -16974,6 +16033,7 @@ declare var SVGSwitchElement: {
 }

 

 interface SVGSymbolElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17005,6 +16065,7 @@ interface SVGTextContentElement extends SVGElement, SVGStylable, SVGTests, SVGLa
     readonly LENGTHADJUST_SPACING: number;

     readonly LENGTHADJUST_SPACINGANDGLYPHS: number;

     readonly LENGTHADJUST_UNKNOWN: number;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17017,7 +16078,6 @@ declare var SVGTextContentElement: {
 }

 

 interface SVGTextElement extends SVGTextPositioningElement, SVGTransformable {

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextElement: {

@@ -17035,7 +16095,6 @@ interface SVGTextPathElement extends SVGTextContentElement, SVGURIReference {
     readonly TEXTPATH_SPACINGTYPE_AUTO: number;

     readonly TEXTPATH_SPACINGTYPE_EXACT: number;

     readonly TEXTPATH_SPACINGTYPE_UNKNOWN: number;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var SVGTextPathElement: {

@@ -17063,6 +16122,7 @@ declare var SVGTextPositioningElement: {
 }

 

 interface SVGTitleElement extends SVGElement, SVGStylable, SVGLangSpace {

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17134,6 +16194,7 @@ interface SVGUseElement extends SVGElement, SVGStylable, SVGTransformable, SVGTe
     readonly width: SVGAnimatedLength;

     readonly x: SVGAnimatedLength;

     readonly y: SVGAnimatedLength;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17144,6 +16205,7 @@ declare var SVGUseElement: {
 

 interface SVGViewElement extends SVGElement, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {

     readonly viewTarget: SVGStringList;

+    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17175,6 +16237,10 @@ declare var SVGZoomEvent: {
     new(): SVGZoomEvent;

 }

 

+interface ScreenEventMap {

+    "MSOrientationChange": Event;

+}

+

 interface Screen extends EventTarget {

     readonly availHeight: number;

     readonly availWidth: number;

@@ -17187,14 +16253,14 @@ interface Screen extends EventTarget {
     readonly logicalXDPI: number;

     readonly logicalYDPI: number;

     readonly msOrientation: string;

-    onmsorientationchange: (this: this, ev: Event) => any;

+    onmsorientationchange: (this: Screen, ev: Event) => any;

     readonly pixelDepth: number;

     readonly systemXDPI: number;

     readonly systemYDPI: number;

     readonly width: number;

     msLockOrientation(orientations: string | string[]): boolean;

     msUnlockOrientation(): void;

-    addEventListener(type: "MSOrientationChange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof ScreenEventMap>(type: K, listener: (this: Screen, ev: ScreenEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17213,10 +16279,14 @@ declare var ScriptNotifyEvent: {
     new(): ScriptNotifyEvent;

 }

 

+interface ScriptProcessorNodeEventMap {

+    "audioprocess": AudioProcessingEvent;

+}

+

 interface ScriptProcessorNode extends AudioNode {

     readonly bufferSize: number;

-    onaudioprocess: (this: this, ev: AudioProcessingEvent) => any;

-    addEventListener(type: "audioprocess", listener: (this: this, ev: AudioProcessingEvent) => any, useCapture?: boolean): void;

+    onaudioprocess: (this: ScriptProcessorNode, ev: AudioProcessingEvent) => any;

+    addEventListener<K extends keyof ScriptProcessorNodeEventMap>(type: K, listener: (this: ScriptProcessorNode, ev: ScriptProcessorNodeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17398,6 +16468,7 @@ declare var SubtleCrypto: {
 

 interface Text extends CharacterData {

     readonly wholeText: string;

+    readonly assignedSlot: HTMLSlotElement | null;

     splitText(offset: number): Text;

 }

 

@@ -17447,6 +16518,12 @@ declare var TextMetrics: {
     new(): TextMetrics;

 }

 

+interface TextTrackEventMap {

+    "cuechange": Event;

+    "error": ErrorEvent;

+    "load": Event;

+}

+

 interface TextTrack extends EventTarget {

     readonly activeCues: TextTrackCueList;

     readonly cues: TextTrackCueList;

@@ -17455,9 +16532,9 @@ interface TextTrack extends EventTarget {
     readonly label: string;

     readonly language: string;

     mode: any;

-    oncuechange: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

+    oncuechange: (this: TextTrack, ev: Event) => any;

+    onerror: (this: TextTrack, ev: ErrorEvent) => any;

+    onload: (this: TextTrack, ev: Event) => any;

     readonly readyState: number;

     addCue(cue: TextTrackCue): void;

     removeCue(cue: TextTrackCue): void;

@@ -17468,9 +16545,7 @@ interface TextTrack extends EventTarget {
     readonly LOADING: number;

     readonly NONE: number;

     readonly SHOWING: number;

-    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackEventMap>(type: K, listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17486,18 +16561,22 @@ declare var TextTrack: {
     readonly SHOWING: number;

 }

 

+interface TextTrackCueEventMap {

+    "enter": Event;

+    "exit": Event;

+}

+

 interface TextTrackCue extends EventTarget {

     endTime: number;

     id: string;

-    onenter: (this: this, ev: Event) => any;

-    onexit: (this: this, ev: Event) => any;

+    onenter: (this: TextTrackCue, ev: Event) => any;

+    onexit: (this: TextTrackCue, ev: Event) => any;

     pauseOnExit: boolean;

     startTime: number;

     text: string;

     readonly track: TextTrack;

     getCueAsHTML(): DocumentFragment;

-    addEventListener(type: "enter", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "exit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -17518,11 +16597,15 @@ declare var TextTrackCueList: {
     new(): TextTrackCueList;

 }

 

+interface TextTrackListEventMap {

+    "addtrack": TrackEvent;

+}

+

 interface TextTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: ((this: this, ev: TrackEvent) => any) | null;

+    onaddtrack: ((this: TextTrackList, ev: TrackEvent) => any) | null;

     item(index: number): TextTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof TextTrackListEventMap>(type: K, listener: (this: TextTrackList, ev: TextTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: TextTrack;

 }

@@ -17712,17 +16795,21 @@ declare var VideoTrack: {
     new(): VideoTrack;

 }

 

+interface VideoTrackListEventMap {

+    "addtrack": TrackEvent;

+    "change": Event;

+    "removetrack": TrackEvent;

+}

+

 interface VideoTrackList extends EventTarget {

     readonly length: number;

-    onaddtrack: (this: this, ev: TrackEvent) => any;

-    onchange: (this: this, ev: Event) => any;

-    onremovetrack: (this: this, ev: TrackEvent) => any;

+    onaddtrack: (this: VideoTrackList, ev: TrackEvent) => any;

+    onchange: (this: VideoTrackList, ev: Event) => any;

+    onremovetrack: (this: VideoTrackList, ev: TrackEvent) => any;

     readonly selectedIndex: number;

     getTrackById(id: string): VideoTrack | null;

     item(index: number): VideoTrack;

-    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof VideoTrackListEventMap>(type: K, listener: (this: VideoTrackList, ev: VideoTrackListEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

     [index: number]: VideoTrack;

 }

@@ -18668,14 +17755,21 @@ declare var WebKitPoint: {
     new(x?: number, y?: number): WebKitPoint;

 }

 

+interface WebSocketEventMap {

+    "close": CloseEvent;

+    "error": ErrorEvent;

+    "message": MessageEvent;

+    "open": Event;

+}

+

 interface WebSocket extends EventTarget {

     binaryType: string;

     readonly bufferedAmount: number;

     readonly extensions: string;

-    onclose: (this: this, ev: CloseEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onopen: (this: this, ev: Event) => any;

+    onclose: (this: WebSocket, ev: CloseEvent) => any;

+    onerror: (this: WebSocket, ev: ErrorEvent) => any;

+    onmessage: (this: WebSocket, ev: MessageEvent) => any;

+    onopen: (this: WebSocket, ev: Event) => any;

     readonly protocol: string;

     readonly readyState: number;

     readonly url: string;

@@ -18685,10 +17779,7 @@ interface WebSocket extends EventTarget {
     readonly CLOSING: number;

     readonly CONNECTING: number;

     readonly OPEN: number;

-    addEventListener(type: "close", listener: (this: this, ev: CloseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -18724,6 +17815,95 @@ declare var WheelEvent: {
     readonly DOM_DELTA_PIXEL: number;

 }

 

+interface WindowEventMap extends GlobalEventHandlersEventMap {

+    "abort": UIEvent;

+    "afterprint": Event;

+    "beforeprint": Event;

+    "beforeunload": BeforeUnloadEvent;

+    "blur": FocusEvent;

+    "canplay": Event;

+    "canplaythrough": Event;

+    "change": Event;

+    "click": MouseEvent;

+    "compassneedscalibration": Event;

+    "contextmenu": PointerEvent;

+    "dblclick": MouseEvent;

+    "devicelight": DeviceLightEvent;

+    "devicemotion": DeviceMotionEvent;

+    "deviceorientation": DeviceOrientationEvent;

+    "drag": DragEvent;

+    "dragend": DragEvent;

+    "dragenter": DragEvent;

+    "dragleave": DragEvent;

+    "dragover": DragEvent;

+    "dragstart": DragEvent;

+    "drop": DragEvent;

+    "durationchange": Event;

+    "emptied": Event;

+    "ended": MediaStreamErrorEvent;

+    "focus": FocusEvent;

+    "hashchange": HashChangeEvent;

+    "input": Event;

+    "invalid": Event;

+    "keydown": KeyboardEvent;

+    "keypress": KeyboardEvent;

+    "keyup": KeyboardEvent;

+    "load": Event;

+    "loadeddata": Event;

+    "loadedmetadata": Event;

+    "loadstart": Event;

+    "message": MessageEvent;

+    "mousedown": MouseEvent;

+    "mouseenter": MouseEvent;

+    "mouseleave": MouseEvent;

+    "mousemove": MouseEvent;

+    "mouseout": MouseEvent;

+    "mouseover": MouseEvent;

+    "mouseup": MouseEvent;

+    "mousewheel": WheelEvent;

+    "MSGestureChange": MSGestureEvent;

+    "MSGestureDoubleTap": MSGestureEvent;

+    "MSGestureEnd": MSGestureEvent;

+    "MSGestureHold": MSGestureEvent;

+    "MSGestureStart": MSGestureEvent;

+    "MSGestureTap": MSGestureEvent;

+    "MSInertiaStart": MSGestureEvent;

+    "MSPointerCancel": MSPointerEvent;

+    "MSPointerDown": MSPointerEvent;

+    "MSPointerEnter": MSPointerEvent;

+    "MSPointerLeave": MSPointerEvent;

+    "MSPointerMove": MSPointerEvent;

+    "MSPointerOut": MSPointerEvent;

+    "MSPointerOver": MSPointerEvent;

+    "MSPointerUp": MSPointerEvent;

+    "offline": Event;

+    "online": Event;

+    "orientationchange": Event;

+    "pagehide": PageTransitionEvent;

+    "pageshow": PageTransitionEvent;

+    "pause": Event;

+    "play": Event;

+    "playing": Event;

+    "popstate": PopStateEvent;

+    "progress": ProgressEvent;

+    "ratechange": Event;

+    "readystatechange": ProgressEvent;

+    "reset": Event;

+    "resize": UIEvent;

+    "scroll": UIEvent;

+    "seeked": Event;

+    "seeking": Event;

+    "select": UIEvent;

+    "stalled": Event;

+    "storage": StorageEvent;

+    "submit": Event;

+    "suspend": Event;

+    "timeupdate": Event;

+    "unload": Event;

+    "volumechange": Event;

+    "waiting": Event;

+}

+

 interface Window extends EventTarget, WindowTimers, WindowSessionStorage, WindowLocalStorage, WindowConsole, GlobalEventHandlers, IDBEnvironment, WindowBase64 {

     readonly applicationCache: ApplicationCache;

     readonly clientInformation: Navigator;

@@ -18748,97 +17928,97 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     name: string;

     readonly navigator: Navigator;

     offscreenBuffering: string | boolean;

-    onabort: (this: this, ev: UIEvent) => any;

-    onafterprint: (this: this, ev: Event) => any;

-    onbeforeprint: (this: this, ev: Event) => any;

-    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;

-    onblur: (this: this, ev: FocusEvent) => any;

-    oncanplay: (this: this, ev: Event) => any;

-    oncanplaythrough: (this: this, ev: Event) => any;

-    onchange: (this: this, ev: Event) => any;

-    onclick: (this: this, ev: MouseEvent) => any;

-    oncompassneedscalibration: (this: this, ev: Event) => any;

-    oncontextmenu: (this: this, ev: PointerEvent) => any;

-    ondblclick: (this: this, ev: MouseEvent) => any;

-    ondevicelight: (this: this, ev: DeviceLightEvent) => any;

-    ondevicemotion: (this: this, ev: DeviceMotionEvent) => any;

-    ondeviceorientation: (this: this, ev: DeviceOrientationEvent) => any;

-    ondrag: (this: this, ev: DragEvent) => any;

-    ondragend: (this: this, ev: DragEvent) => any;

-    ondragenter: (this: this, ev: DragEvent) => any;

-    ondragleave: (this: this, ev: DragEvent) => any;

-    ondragover: (this: this, ev: DragEvent) => any;

-    ondragstart: (this: this, ev: DragEvent) => any;

-    ondrop: (this: this, ev: DragEvent) => any;

-    ondurationchange: (this: this, ev: Event) => any;

-    onemptied: (this: this, ev: Event) => any;

-    onended: (this: this, ev: MediaStreamErrorEvent) => any;

+    onabort: (this: Window, ev: UIEvent) => any;

+    onafterprint: (this: Window, ev: Event) => any;

+    onbeforeprint: (this: Window, ev: Event) => any;

+    onbeforeunload: (this: Window, ev: BeforeUnloadEvent) => any;

+    onblur: (this: Window, ev: FocusEvent) => any;

+    oncanplay: (this: Window, ev: Event) => any;

+    oncanplaythrough: (this: Window, ev: Event) => any;

+    onchange: (this: Window, ev: Event) => any;

+    onclick: (this: Window, ev: MouseEvent) => any;

+    oncompassneedscalibration: (this: Window, ev: Event) => any;

+    oncontextmenu: (this: Window, ev: PointerEvent) => any;

+    ondblclick: (this: Window, ev: MouseEvent) => any;

+    ondevicelight: (this: Window, ev: DeviceLightEvent) => any;

+    ondevicemotion: (this: Window, ev: DeviceMotionEvent) => any;

+    ondeviceorientation: (this: Window, ev: DeviceOrientationEvent) => any;

+    ondrag: (this: Window, ev: DragEvent) => any;

+    ondragend: (this: Window, ev: DragEvent) => any;

+    ondragenter: (this: Window, ev: DragEvent) => any;

+    ondragleave: (this: Window, ev: DragEvent) => any;

+    ondragover: (this: Window, ev: DragEvent) => any;

+    ondragstart: (this: Window, ev: DragEvent) => any;

+    ondrop: (this: Window, ev: DragEvent) => any;

+    ondurationchange: (this: Window, ev: Event) => any;

+    onemptied: (this: Window, ev: Event) => any;

+    onended: (this: Window, ev: MediaStreamErrorEvent) => any;

     onerror: ErrorEventHandler;

-    onfocus: (this: this, ev: FocusEvent) => any;

-    onhashchange: (this: this, ev: HashChangeEvent) => any;

-    oninput: (this: this, ev: Event) => any;

-    oninvalid: (this: this, ev: Event) => any;

-    onkeydown: (this: this, ev: KeyboardEvent) => any;

-    onkeypress: (this: this, ev: KeyboardEvent) => any;

-    onkeyup: (this: this, ev: KeyboardEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadeddata: (this: this, ev: Event) => any;

-    onloadedmetadata: (this: this, ev: Event) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onmousedown: (this: this, ev: MouseEvent) => any;

-    onmouseenter: (this: this, ev: MouseEvent) => any;

-    onmouseleave: (this: this, ev: MouseEvent) => any;

-    onmousemove: (this: this, ev: MouseEvent) => any;

-    onmouseout: (this: this, ev: MouseEvent) => any;

-    onmouseover: (this: this, ev: MouseEvent) => any;

-    onmouseup: (this: this, ev: MouseEvent) => any;

-    onmousewheel: (this: this, ev: WheelEvent) => any;

-    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;

-    onmsgestureend: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;

-    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;

-    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;

-    onmspointercancel: (this: this, ev: MSPointerEvent) => any;

-    onmspointerdown: (this: this, ev: MSPointerEvent) => any;

-    onmspointerenter: (this: this, ev: MSPointerEvent) => any;

-    onmspointerleave: (this: this, ev: MSPointerEvent) => any;

-    onmspointermove: (this: this, ev: MSPointerEvent) => any;

-    onmspointerout: (this: this, ev: MSPointerEvent) => any;

-    onmspointerover: (this: this, ev: MSPointerEvent) => any;

-    onmspointerup: (this: this, ev: MSPointerEvent) => any;

-    onoffline: (this: this, ev: Event) => any;

-    ononline: (this: this, ev: Event) => any;

-    onorientationchange: (this: this, ev: Event) => any;

-    onpagehide: (this: this, ev: PageTransitionEvent) => any;

-    onpageshow: (this: this, ev: PageTransitionEvent) => any;

-    onpause: (this: this, ev: Event) => any;

-    onplay: (this: this, ev: Event) => any;

-    onplaying: (this: this, ev: Event) => any;

-    onpopstate: (this: this, ev: PopStateEvent) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    onratechange: (this: this, ev: Event) => any;

-    onreadystatechange: (this: this, ev: ProgressEvent) => any;

-    onreset: (this: this, ev: Event) => any;

-    onresize: (this: this, ev: UIEvent) => any;

-    onscroll: (this: this, ev: UIEvent) => any;

-    onseeked: (this: this, ev: Event) => any;

-    onseeking: (this: this, ev: Event) => any;

-    onselect: (this: this, ev: UIEvent) => any;

-    onstalled: (this: this, ev: Event) => any;

-    onstorage: (this: this, ev: StorageEvent) => any;

-    onsubmit: (this: this, ev: Event) => any;

-    onsuspend: (this: this, ev: Event) => any;

-    ontimeupdate: (this: this, ev: Event) => any;

+    onfocus: (this: Window, ev: FocusEvent) => any;

+    onhashchange: (this: Window, ev: HashChangeEvent) => any;

+    oninput: (this: Window, ev: Event) => any;

+    oninvalid: (this: Window, ev: Event) => any;

+    onkeydown: (this: Window, ev: KeyboardEvent) => any;

+    onkeypress: (this: Window, ev: KeyboardEvent) => any;

+    onkeyup: (this: Window, ev: KeyboardEvent) => any;

+    onload: (this: Window, ev: Event) => any;

+    onloadeddata: (this: Window, ev: Event) => any;

+    onloadedmetadata: (this: Window, ev: Event) => any;

+    onloadstart: (this: Window, ev: Event) => any;

+    onmessage: (this: Window, ev: MessageEvent) => any;

+    onmousedown: (this: Window, ev: MouseEvent) => any;

+    onmouseenter: (this: Window, ev: MouseEvent) => any;

+    onmouseleave: (this: Window, ev: MouseEvent) => any;

+    onmousemove: (this: Window, ev: MouseEvent) => any;

+    onmouseout: (this: Window, ev: MouseEvent) => any;

+    onmouseover: (this: Window, ev: MouseEvent) => any;

+    onmouseup: (this: Window, ev: MouseEvent) => any;

+    onmousewheel: (this: Window, ev: WheelEvent) => any;

+    onmsgesturechange: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturedoubletap: (this: Window, ev: MSGestureEvent) => any;

+    onmsgestureend: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturehold: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturestart: (this: Window, ev: MSGestureEvent) => any;

+    onmsgesturetap: (this: Window, ev: MSGestureEvent) => any;

+    onmsinertiastart: (this: Window, ev: MSGestureEvent) => any;

+    onmspointercancel: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerdown: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerenter: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerleave: (this: Window, ev: MSPointerEvent) => any;

+    onmspointermove: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerout: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerover: (this: Window, ev: MSPointerEvent) => any;

+    onmspointerup: (this: Window, ev: MSPointerEvent) => any;

+    onoffline: (this: Window, ev: Event) => any;

+    ononline: (this: Window, ev: Event) => any;

+    onorientationchange: (this: Window, ev: Event) => any;

+    onpagehide: (this: Window, ev: PageTransitionEvent) => any;

+    onpageshow: (this: Window, ev: PageTransitionEvent) => any;

+    onpause: (this: Window, ev: Event) => any;

+    onplay: (this: Window, ev: Event) => any;

+    onplaying: (this: Window, ev: Event) => any;

+    onpopstate: (this: Window, ev: PopStateEvent) => any;

+    onprogress: (this: Window, ev: ProgressEvent) => any;

+    onratechange: (this: Window, ev: Event) => any;

+    onreadystatechange: (this: Window, ev: ProgressEvent) => any;

+    onreset: (this: Window, ev: Event) => any;

+    onresize: (this: Window, ev: UIEvent) => any;

+    onscroll: (this: Window, ev: UIEvent) => any;

+    onseeked: (this: Window, ev: Event) => any;

+    onseeking: (this: Window, ev: Event) => any;

+    onselect: (this: Window, ev: UIEvent) => any;

+    onstalled: (this: Window, ev: Event) => any;

+    onstorage: (this: Window, ev: StorageEvent) => any;

+    onsubmit: (this: Window, ev: Event) => any;

+    onsuspend: (this: Window, ev: Event) => any;

+    ontimeupdate: (this: Window, ev: Event) => any;

     ontouchcancel: (ev: TouchEvent) => any;

     ontouchend: (ev: TouchEvent) => any;

     ontouchmove: (ev: TouchEvent) => any;

     ontouchstart: (ev: TouchEvent) => any;

-    onunload: (this: this, ev: Event) => any;

-    onvolumechange: (this: this, ev: Event) => any;

-    onwaiting: (this: this, ev: Event) => any;

+    onunload: (this: Window, ev: Event) => any;

+    onvolumechange: (this: Window, ev: Event) => any;

+    onwaiting: (this: Window, ev: Event) => any;

     opener: any;

     orientation: string | number;

     readonly outerHeight: number;

@@ -18897,101 +18077,7 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     scroll(options?: ScrollToOptions): void;

     scrollTo(options?: ScrollToOptions): void;

     scrollBy(options?: ScrollToOptions): void;

-    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "compassneedscalibration", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicelight", listener: (this: this, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "devicemotion", listener: (this: this, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "deviceorientation", listener: (this: this, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19000,12 +18086,15 @@ declare var Window: {
     new(): Window;

 }

 

+interface WorkerEventMap extends AbstractWorkerEventMap {

+    "message": MessageEvent;

+}

+

 interface Worker extends EventTarget, AbstractWorker {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: Worker, ev: MessageEvent) => any;

     postMessage(message: any, ports?: any): void;

     terminate(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19015,6 +18104,8 @@ declare var Worker: {
 }

 

 interface XMLDocument extends Document {

+    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, useCapture?: boolean): void;

+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var XMLDocument: {

@@ -19022,8 +18113,12 @@ declare var XMLDocument: {
     new(): XMLDocument;

 }

 

+interface XMLHttpRequestEventMap extends XMLHttpRequestEventTargetEventMap {

+    "readystatechange": Event;

+}

+

 interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {

-    onreadystatechange: (this: this, ev: Event) => any;

+    onreadystatechange: (this: XMLHttpRequest, ev: Event) => any;

     readonly readyState: number;

     readonly response: any;

     readonly responseText: string;

@@ -19051,14 +18146,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly LOADING: number;

     readonly OPENED: number;

     readonly UNSENT: number;

-    addEventListener(type: "abort", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19074,6 +18162,7 @@ declare var XMLHttpRequest: {
 }

 

 interface XMLHttpRequestUpload extends EventTarget, XMLHttpRequestEventTarget {

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19094,7 +18183,7 @@ declare var XMLSerializer: {
 interface XPathEvaluator {

     createExpression(expression: string, resolver: XPathNSResolver): XPathExpression;

     createNSResolver(nodeResolver?: Node): XPathNSResolver;

-    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver, type: number, result: XPathResult): XPathResult;

+    evaluate(expression: string, contextNode: Node, resolver: XPathNSResolver | null, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathEvaluator: {

@@ -19103,7 +18192,7 @@ declare var XPathEvaluator: {
 }

 

 interface XPathExpression {

-    evaluate(contextNode: Node, type: number, result: XPathResult): XPathExpression;

+    evaluate(contextNode: Node, type: number, result: XPathResult | null): XPathResult;

 }

 

 declare var XPathExpression: {

@@ -19173,9 +18262,13 @@ declare var XSLTProcessor: {
     new(): XSLTProcessor;

 }

 

+interface AbstractWorkerEventMap {

+    "error": ErrorEvent;

+}

+

 interface AbstractWorker {

-    onerror: (this: this, ev: ErrorEvent) => any;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    onerror: (this: AbstractWorker, ev: ErrorEvent) => any;

+    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19286,25 +18379,29 @@ interface GetSVGDocument {
     getSVGDocument(): Document;

 }

 

+interface GlobalEventHandlersEventMap {

+    "pointercancel": PointerEvent;

+    "pointerdown": PointerEvent;

+    "pointerenter": PointerEvent;

+    "pointerleave": PointerEvent;

+    "pointermove": PointerEvent;

+    "pointerout": PointerEvent;

+    "pointerover": PointerEvent;

+    "pointerup": PointerEvent;

+    "wheel": WheelEvent;

+}

+

 interface GlobalEventHandlers {

-    onpointercancel: (this: this, ev: PointerEvent) => any;

-    onpointerdown: (this: this, ev: PointerEvent) => any;

-    onpointerenter: (this: this, ev: PointerEvent) => any;

-    onpointerleave: (this: this, ev: PointerEvent) => any;

-    onpointermove: (this: this, ev: PointerEvent) => any;

-    onpointerout: (this: this, ev: PointerEvent) => any;

-    onpointerover: (this: this, ev: PointerEvent) => any;

-    onpointerup: (this: this, ev: PointerEvent) => any;

-    onwheel: (this: this, ev: WheelEvent) => any;

-    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;

+    onpointercancel: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerdown: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerenter: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerleave: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointermove: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerout: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerover: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onpointerup: (this: GlobalEventHandlers, ev: PointerEvent) => any;

+    onwheel: (this: GlobalEventHandlers, ev: WheelEvent) => any;

+    addEventListener<K extends keyof GlobalEventHandlersEventMap>(type: K, listener: (this: GlobalEventHandlers, ev: GlobalEventHandlersEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19331,25 +18428,29 @@ interface LinkStyle {
     readonly sheet: StyleSheet;

 }

 

+interface MSBaseReaderEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+}

+

 interface MSBaseReader {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onabort: (this: MSBaseReader, ev: Event) => any;

+    onerror: (this: MSBaseReader, ev: ErrorEvent) => any;

+    onload: (this: MSBaseReader, ev: Event) => any;

+    onloadend: (this: MSBaseReader, ev: ProgressEvent) => any;

+    onloadstart: (this: MSBaseReader, ev: Event) => any;

+    onprogress: (this: MSBaseReader, ev: ProgressEvent) => any;

     readonly readyState: number;

     readonly result: any;

     abort(): void;

     readonly DONE: number;

     readonly EMPTY: number;

     readonly LOADING: number;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -19398,359 +18499,9 @@ interface NavigatorUserMedia {
 }

 

 interface NodeSelector {

-    querySelector(selectors: "a"): HTMLAnchorElement | null;

-    querySelector(selectors: "abbr"): HTMLElement | null;

-    querySelector(selectors: "acronym"): HTMLElement | null;

-    querySelector(selectors: "address"): HTMLElement | null;

-    querySelector(selectors: "applet"): HTMLAppletElement | null;

-    querySelector(selectors: "area"): HTMLAreaElement | null;

-    querySelector(selectors: "article"): HTMLElement | null;

-    querySelector(selectors: "aside"): HTMLElement | null;

-    querySelector(selectors: "audio"): HTMLAudioElement | null;

-    querySelector(selectors: "b"): HTMLElement | null;

-    querySelector(selectors: "base"): HTMLBaseElement | null;

-    querySelector(selectors: "basefont"): HTMLBaseFontElement | null;

-    querySelector(selectors: "bdo"): HTMLElement | null;

-    querySelector(selectors: "big"): HTMLElement | null;

-    querySelector(selectors: "blockquote"): HTMLQuoteElement | null;

-    querySelector(selectors: "body"): HTMLBodyElement | null;

-    querySelector(selectors: "br"): HTMLBRElement | null;

-    querySelector(selectors: "button"): HTMLButtonElement | null;

-    querySelector(selectors: "canvas"): HTMLCanvasElement | null;

-    querySelector(selectors: "caption"): HTMLTableCaptionElement | null;

-    querySelector(selectors: "center"): HTMLElement | null;

-    querySelector(selectors: "circle"): SVGCircleElement | null;

-    querySelector(selectors: "cite"): HTMLElement | null;

-    querySelector(selectors: "clippath"): SVGClipPathElement | null;

-    querySelector(selectors: "code"): HTMLElement | null;

-    querySelector(selectors: "col"): HTMLTableColElement | null;

-    querySelector(selectors: "colgroup"): HTMLTableColElement | null;

-    querySelector(selectors: "datalist"): HTMLDataListElement | null;

-    querySelector(selectors: "dd"): HTMLElement | null;

-    querySelector(selectors: "defs"): SVGDefsElement | null;

-    querySelector(selectors: "del"): HTMLModElement | null;

-    querySelector(selectors: "desc"): SVGDescElement | null;

-    querySelector(selectors: "dfn"): HTMLElement | null;

-    querySelector(selectors: "dir"): HTMLDirectoryElement | null;

-    querySelector(selectors: "div"): HTMLDivElement | null;

-    querySelector(selectors: "dl"): HTMLDListElement | null;

-    querySelector(selectors: "dt"): HTMLElement | null;

-    querySelector(selectors: "ellipse"): SVGEllipseElement | null;

-    querySelector(selectors: "em"): HTMLElement | null;

-    querySelector(selectors: "embed"): HTMLEmbedElement | null;

-    querySelector(selectors: "feblend"): SVGFEBlendElement | null;

-    querySelector(selectors: "fecolormatrix"): SVGFEColorMatrixElement | null;

-    querySelector(selectors: "fecomponenttransfer"): SVGFEComponentTransferElement | null;

-    querySelector(selectors: "fecomposite"): SVGFECompositeElement | null;

-    querySelector(selectors: "feconvolvematrix"): SVGFEConvolveMatrixElement | null;

-    querySelector(selectors: "fediffuselighting"): SVGFEDiffuseLightingElement | null;

-    querySelector(selectors: "fedisplacementmap"): SVGFEDisplacementMapElement | null;

-    querySelector(selectors: "fedistantlight"): SVGFEDistantLightElement | null;

-    querySelector(selectors: "feflood"): SVGFEFloodElement | null;

-    querySelector(selectors: "fefunca"): SVGFEFuncAElement | null;

-    querySelector(selectors: "fefuncb"): SVGFEFuncBElement | null;

-    querySelector(selectors: "fefuncg"): SVGFEFuncGElement | null;

-    querySelector(selectors: "fefuncr"): SVGFEFuncRElement | null;

-    querySelector(selectors: "fegaussianblur"): SVGFEGaussianBlurElement | null;

-    querySelector(selectors: "feimage"): SVGFEImageElement | null;

-    querySelector(selectors: "femerge"): SVGFEMergeElement | null;

-    querySelector(selectors: "femergenode"): SVGFEMergeNodeElement | null;

-    querySelector(selectors: "femorphology"): SVGFEMorphologyElement | null;

-    querySelector(selectors: "feoffset"): SVGFEOffsetElement | null;

-    querySelector(selectors: "fepointlight"): SVGFEPointLightElement | null;

-    querySelector(selectors: "fespecularlighting"): SVGFESpecularLightingElement | null;

-    querySelector(selectors: "fespotlight"): SVGFESpotLightElement | null;

-    querySelector(selectors: "fetile"): SVGFETileElement | null;

-    querySelector(selectors: "feturbulence"): SVGFETurbulenceElement | null;

-    querySelector(selectors: "fieldset"): HTMLFieldSetElement | null;

-    querySelector(selectors: "figcaption"): HTMLElement | null;

-    querySelector(selectors: "figure"): HTMLElement | null;

-    querySelector(selectors: "filter"): SVGFilterElement | null;

-    querySelector(selectors: "font"): HTMLFontElement | null;

-    querySelector(selectors: "footer"): HTMLElement | null;

-    querySelector(selectors: "foreignobject"): SVGForeignObjectElement | null;

-    querySelector(selectors: "form"): HTMLFormElement | null;

-    querySelector(selectors: "frame"): HTMLFrameElement | null;

-    querySelector(selectors: "frameset"): HTMLFrameSetElement | null;

-    querySelector(selectors: "g"): SVGGElement | null;

-    querySelector(selectors: "h1"): HTMLHeadingElement | null;

-    querySelector(selectors: "h2"): HTMLHeadingElement | null;

-    querySelector(selectors: "h3"): HTMLHeadingElement | null;

-    querySelector(selectors: "h4"): HTMLHeadingElement | null;

-    querySelector(selectors: "h5"): HTMLHeadingElement | null;

-    querySelector(selectors: "h6"): HTMLHeadingElement | null;

-    querySelector(selectors: "head"): HTMLHeadElement | null;

-    querySelector(selectors: "header"): HTMLElement | null;

-    querySelector(selectors: "hgroup"): HTMLElement | null;

-    querySelector(selectors: "hr"): HTMLHRElement | null;

-    querySelector(selectors: "html"): HTMLHtmlElement | null;

-    querySelector(selectors: "i"): HTMLElement | null;

-    querySelector(selectors: "iframe"): HTMLIFrameElement | null;

-    querySelector(selectors: "image"): SVGImageElement | null;

-    querySelector(selectors: "img"): HTMLImageElement | null;

-    querySelector(selectors: "input"): HTMLInputElement | null;

-    querySelector(selectors: "ins"): HTMLModElement | null;

-    querySelector(selectors: "isindex"): HTMLUnknownElement | null;

-    querySelector(selectors: "kbd"): HTMLElement | null;

-    querySelector(selectors: "keygen"): HTMLElement | null;

-    querySelector(selectors: "label"): HTMLLabelElement | null;

-    querySelector(selectors: "legend"): HTMLLegendElement | null;

-    querySelector(selectors: "li"): HTMLLIElement | null;

-    querySelector(selectors: "line"): SVGLineElement | null;

-    querySelector(selectors: "lineargradient"): SVGLinearGradientElement | null;

-    querySelector(selectors: "link"): HTMLLinkElement | null;

-    querySelector(selectors: "listing"): HTMLPreElement | null;

-    querySelector(selectors: "map"): HTMLMapElement | null;

-    querySelector(selectors: "mark"): HTMLElement | null;

-    querySelector(selectors: "marker"): SVGMarkerElement | null;

-    querySelector(selectors: "marquee"): HTMLMarqueeElement | null;

-    querySelector(selectors: "mask"): SVGMaskElement | null;

-    querySelector(selectors: "menu"): HTMLMenuElement | null;

-    querySelector(selectors: "meta"): HTMLMetaElement | null;

-    querySelector(selectors: "metadata"): SVGMetadataElement | null;

-    querySelector(selectors: "meter"): HTMLMeterElement | null;

-    querySelector(selectors: "nav"): HTMLElement | null;

-    querySelector(selectors: "nextid"): HTMLUnknownElement | null;

-    querySelector(selectors: "nobr"): HTMLElement | null;

-    querySelector(selectors: "noframes"): HTMLElement | null;

-    querySelector(selectors: "noscript"): HTMLElement | null;

-    querySelector(selectors: "object"): HTMLObjectElement | null;

-    querySelector(selectors: "ol"): HTMLOListElement | null;

-    querySelector(selectors: "optgroup"): HTMLOptGroupElement | null;

-    querySelector(selectors: "option"): HTMLOptionElement | null;

-    querySelector(selectors: "p"): HTMLParagraphElement | null;

-    querySelector(selectors: "param"): HTMLParamElement | null;

-    querySelector(selectors: "path"): SVGPathElement | null;

-    querySelector(selectors: "pattern"): SVGPatternElement | null;

-    querySelector(selectors: "picture"): HTMLPictureElement | null;

-    querySelector(selectors: "plaintext"): HTMLElement | null;

-    querySelector(selectors: "polygon"): SVGPolygonElement | null;

-    querySelector(selectors: "polyline"): SVGPolylineElement | null;

-    querySelector(selectors: "pre"): HTMLPreElement | null;

-    querySelector(selectors: "progress"): HTMLProgressElement | null;

-    querySelector(selectors: "q"): HTMLQuoteElement | null;

-    querySelector(selectors: "radialgradient"): SVGRadialGradientElement | null;

-    querySelector(selectors: "rect"): SVGRectElement | null;

-    querySelector(selectors: "rt"): HTMLElement | null;

-    querySelector(selectors: "ruby"): HTMLElement | null;

-    querySelector(selectors: "s"): HTMLElement | null;

-    querySelector(selectors: "samp"): HTMLElement | null;

-    querySelector(selectors: "script"): HTMLScriptElement | null;

-    querySelector(selectors: "section"): HTMLElement | null;

-    querySelector(selectors: "select"): HTMLSelectElement | null;

-    querySelector(selectors: "small"): HTMLElement | null;

-    querySelector(selectors: "source"): HTMLSourceElement | null;

-    querySelector(selectors: "span"): HTMLSpanElement | null;

-    querySelector(selectors: "stop"): SVGStopElement | null;

-    querySelector(selectors: "strike"): HTMLElement | null;

-    querySelector(selectors: "strong"): HTMLElement | null;

-    querySelector(selectors: "style"): HTMLStyleElement | null;

-    querySelector(selectors: "sub"): HTMLElement | null;

-    querySelector(selectors: "sup"): HTMLElement | null;

-    querySelector(selectors: "svg"): SVGSVGElement | null;

-    querySelector(selectors: "switch"): SVGSwitchElement | null;

-    querySelector(selectors: "symbol"): SVGSymbolElement | null;

-    querySelector(selectors: "table"): HTMLTableElement | null;

-    querySelector(selectors: "tbody"): HTMLTableSectionElement | null;

-    querySelector(selectors: "td"): HTMLTableDataCellElement | null;

-    querySelector(selectors: "template"): HTMLTemplateElement | null;

-    querySelector(selectors: "text"): SVGTextElement | null;

-    querySelector(selectors: "textpath"): SVGTextPathElement | null;

-    querySelector(selectors: "textarea"): HTMLTextAreaElement | null;

-    querySelector(selectors: "tfoot"): HTMLTableSectionElement | null;

-    querySelector(selectors: "th"): HTMLTableHeaderCellElement | null;

-    querySelector(selectors: "thead"): HTMLTableSectionElement | null;

-    querySelector(selectors: "title"): HTMLTitleElement | null;

-    querySelector(selectors: "tr"): HTMLTableRowElement | null;

-    querySelector(selectors: "track"): HTMLTrackElement | null;

-    querySelector(selectors: "tspan"): SVGTSpanElement | null;

-    querySelector(selectors: "tt"): HTMLElement | null;

-    querySelector(selectors: "u"): HTMLElement | null;

-    querySelector(selectors: "ul"): HTMLUListElement | null;

-    querySelector(selectors: "use"): SVGUseElement | null;

-    querySelector(selectors: "var"): HTMLElement | null;

-    querySelector(selectors: "video"): HTMLVideoElement | null;

-    querySelector(selectors: "view"): SVGViewElement | null;

-    querySelector(selectors: "wbr"): HTMLElement | null;

-    querySelector(selectors: "x-ms-webview"): MSHTMLWebViewElement | null;

-    querySelector(selectors: "xmp"): HTMLPreElement | null;

+    querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | null;

     querySelector(selectors: string): Element | null;

-    querySelectorAll(selectors: "a"): NodeListOf<HTMLAnchorElement>;

-    querySelectorAll(selectors: "abbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "acronym"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "address"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "applet"): NodeListOf<HTMLAppletElement>;

-    querySelectorAll(selectors: "area"): NodeListOf<HTMLAreaElement>;

-    querySelectorAll(selectors: "article"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "aside"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "audio"): NodeListOf<HTMLAudioElement>;

-    querySelectorAll(selectors: "b"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "base"): NodeListOf<HTMLBaseElement>;

-    querySelectorAll(selectors: "basefont"): NodeListOf<HTMLBaseFontElement>;

-    querySelectorAll(selectors: "bdo"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "big"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "blockquote"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "body"): NodeListOf<HTMLBodyElement>;

-    querySelectorAll(selectors: "br"): NodeListOf<HTMLBRElement>;

-    querySelectorAll(selectors: "button"): NodeListOf<HTMLButtonElement>;

-    querySelectorAll(selectors: "canvas"): NodeListOf<HTMLCanvasElement>;

-    querySelectorAll(selectors: "caption"): NodeListOf<HTMLTableCaptionElement>;

-    querySelectorAll(selectors: "center"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "circle"): NodeListOf<SVGCircleElement>;

-    querySelectorAll(selectors: "cite"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "clippath"): NodeListOf<SVGClipPathElement>;

-    querySelectorAll(selectors: "code"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "col"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "colgroup"): NodeListOf<HTMLTableColElement>;

-    querySelectorAll(selectors: "datalist"): NodeListOf<HTMLDataListElement>;

-    querySelectorAll(selectors: "dd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "defs"): NodeListOf<SVGDefsElement>;

-    querySelectorAll(selectors: "del"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "desc"): NodeListOf<SVGDescElement>;

-    querySelectorAll(selectors: "dfn"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "dir"): NodeListOf<HTMLDirectoryElement>;

-    querySelectorAll(selectors: "div"): NodeListOf<HTMLDivElement>;

-    querySelectorAll(selectors: "dl"): NodeListOf<HTMLDListElement>;

-    querySelectorAll(selectors: "dt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ellipse"): NodeListOf<SVGEllipseElement>;

-    querySelectorAll(selectors: "em"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "embed"): NodeListOf<HTMLEmbedElement>;

-    querySelectorAll(selectors: "feblend"): NodeListOf<SVGFEBlendElement>;

-    querySelectorAll(selectors: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;

-    querySelectorAll(selectors: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;

-    querySelectorAll(selectors: "fecomposite"): NodeListOf<SVGFECompositeElement>;

-    querySelectorAll(selectors: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;

-    querySelectorAll(selectors: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;

-    querySelectorAll(selectors: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;

-    querySelectorAll(selectors: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;

-    querySelectorAll(selectors: "feflood"): NodeListOf<SVGFEFloodElement>;

-    querySelectorAll(selectors: "fefunca"): NodeListOf<SVGFEFuncAElement>;

-    querySelectorAll(selectors: "fefuncb"): NodeListOf<SVGFEFuncBElement>;

-    querySelectorAll(selectors: "fefuncg"): NodeListOf<SVGFEFuncGElement>;

-    querySelectorAll(selectors: "fefuncr"): NodeListOf<SVGFEFuncRElement>;

-    querySelectorAll(selectors: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;

-    querySelectorAll(selectors: "feimage"): NodeListOf<SVGFEImageElement>;

-    querySelectorAll(selectors: "femerge"): NodeListOf<SVGFEMergeElement>;

-    querySelectorAll(selectors: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;

-    querySelectorAll(selectors: "femorphology"): NodeListOf<SVGFEMorphologyElement>;

-    querySelectorAll(selectors: "feoffset"): NodeListOf<SVGFEOffsetElement>;

-    querySelectorAll(selectors: "fepointlight"): NodeListOf<SVGFEPointLightElement>;

-    querySelectorAll(selectors: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;

-    querySelectorAll(selectors: "fespotlight"): NodeListOf<SVGFESpotLightElement>;

-    querySelectorAll(selectors: "fetile"): NodeListOf<SVGFETileElement>;

-    querySelectorAll(selectors: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;

-    querySelectorAll(selectors: "fieldset"): NodeListOf<HTMLFieldSetElement>;

-    querySelectorAll(selectors: "figcaption"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "figure"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "filter"): NodeListOf<SVGFilterElement>;

-    querySelectorAll(selectors: "font"): NodeListOf<HTMLFontElement>;

-    querySelectorAll(selectors: "footer"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "foreignobject"): NodeListOf<SVGForeignObjectElement>;

-    querySelectorAll(selectors: "form"): NodeListOf<HTMLFormElement>;

-    querySelectorAll(selectors: "frame"): NodeListOf<HTMLFrameElement>;

-    querySelectorAll(selectors: "frameset"): NodeListOf<HTMLFrameSetElement>;

-    querySelectorAll(selectors: "g"): NodeListOf<SVGGElement>;

-    querySelectorAll(selectors: "h1"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h2"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h3"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h4"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h5"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "h6"): NodeListOf<HTMLHeadingElement>;

-    querySelectorAll(selectors: "head"): NodeListOf<HTMLHeadElement>;

-    querySelectorAll(selectors: "header"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hgroup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "hr"): NodeListOf<HTMLHRElement>;

-    querySelectorAll(selectors: "html"): NodeListOf<HTMLHtmlElement>;

-    querySelectorAll(selectors: "i"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "iframe"): NodeListOf<HTMLIFrameElement>;

-    querySelectorAll(selectors: "image"): NodeListOf<SVGImageElement>;

-    querySelectorAll(selectors: "img"): NodeListOf<HTMLImageElement>;

-    querySelectorAll(selectors: "input"): NodeListOf<HTMLInputElement>;

-    querySelectorAll(selectors: "ins"): NodeListOf<HTMLModElement>;

-    querySelectorAll(selectors: "isindex"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "kbd"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "keygen"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "label"): NodeListOf<HTMLLabelElement>;

-    querySelectorAll(selectors: "legend"): NodeListOf<HTMLLegendElement>;

-    querySelectorAll(selectors: "li"): NodeListOf<HTMLLIElement>;

-    querySelectorAll(selectors: "line"): NodeListOf<SVGLineElement>;

-    querySelectorAll(selectors: "lineargradient"): NodeListOf<SVGLinearGradientElement>;

-    querySelectorAll(selectors: "link"): NodeListOf<HTMLLinkElement>;

-    querySelectorAll(selectors: "listing"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "map"): NodeListOf<HTMLMapElement>;

-    querySelectorAll(selectors: "mark"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "marker"): NodeListOf<SVGMarkerElement>;

-    querySelectorAll(selectors: "marquee"): NodeListOf<HTMLMarqueeElement>;

-    querySelectorAll(selectors: "mask"): NodeListOf<SVGMaskElement>;

-    querySelectorAll(selectors: "menu"): NodeListOf<HTMLMenuElement>;

-    querySelectorAll(selectors: "meta"): NodeListOf<HTMLMetaElement>;

-    querySelectorAll(selectors: "metadata"): NodeListOf<SVGMetadataElement>;

-    querySelectorAll(selectors: "meter"): NodeListOf<HTMLMeterElement>;

-    querySelectorAll(selectors: "nav"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "nextid"): NodeListOf<HTMLUnknownElement>;

-    querySelectorAll(selectors: "nobr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noframes"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "noscript"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "object"): NodeListOf<HTMLObjectElement>;

-    querySelectorAll(selectors: "ol"): NodeListOf<HTMLOListElement>;

-    querySelectorAll(selectors: "optgroup"): NodeListOf<HTMLOptGroupElement>;

-    querySelectorAll(selectors: "option"): NodeListOf<HTMLOptionElement>;

-    querySelectorAll(selectors: "p"): NodeListOf<HTMLParagraphElement>;

-    querySelectorAll(selectors: "param"): NodeListOf<HTMLParamElement>;

-    querySelectorAll(selectors: "path"): NodeListOf<SVGPathElement>;

-    querySelectorAll(selectors: "pattern"): NodeListOf<SVGPatternElement>;

-    querySelectorAll(selectors: "picture"): NodeListOf<HTMLPictureElement>;

-    querySelectorAll(selectors: "plaintext"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "polygon"): NodeListOf<SVGPolygonElement>;

-    querySelectorAll(selectors: "polyline"): NodeListOf<SVGPolylineElement>;

-    querySelectorAll(selectors: "pre"): NodeListOf<HTMLPreElement>;

-    querySelectorAll(selectors: "progress"): NodeListOf<HTMLProgressElement>;

-    querySelectorAll(selectors: "q"): NodeListOf<HTMLQuoteElement>;

-    querySelectorAll(selectors: "radialgradient"): NodeListOf<SVGRadialGradientElement>;

-    querySelectorAll(selectors: "rect"): NodeListOf<SVGRectElement>;

-    querySelectorAll(selectors: "rt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ruby"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "s"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "samp"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "script"): NodeListOf<HTMLScriptElement>;

-    querySelectorAll(selectors: "section"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "select"): NodeListOf<HTMLSelectElement>;

-    querySelectorAll(selectors: "small"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "source"): NodeListOf<HTMLSourceElement>;

-    querySelectorAll(selectors: "span"): NodeListOf<HTMLSpanElement>;

-    querySelectorAll(selectors: "stop"): NodeListOf<SVGStopElement>;

-    querySelectorAll(selectors: "strike"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "strong"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "style"): NodeListOf<HTMLStyleElement>;

-    querySelectorAll(selectors: "sub"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "sup"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "svg"): NodeListOf<SVGSVGElement>;

-    querySelectorAll(selectors: "switch"): NodeListOf<SVGSwitchElement>;

-    querySelectorAll(selectors: "symbol"): NodeListOf<SVGSymbolElement>;

-    querySelectorAll(selectors: "table"): NodeListOf<HTMLTableElement>;

-    querySelectorAll(selectors: "tbody"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "td"): NodeListOf<HTMLTableDataCellElement>;

-    querySelectorAll(selectors: "template"): NodeListOf<HTMLTemplateElement>;

-    querySelectorAll(selectors: "text"): NodeListOf<SVGTextElement>;

-    querySelectorAll(selectors: "textpath"): NodeListOf<SVGTextPathElement>;

-    querySelectorAll(selectors: "textarea"): NodeListOf<HTMLTextAreaElement>;

-    querySelectorAll(selectors: "tfoot"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "th"): NodeListOf<HTMLTableHeaderCellElement>;

-    querySelectorAll(selectors: "thead"): NodeListOf<HTMLTableSectionElement>;

-    querySelectorAll(selectors: "title"): NodeListOf<HTMLTitleElement>;

-    querySelectorAll(selectors: "tr"): NodeListOf<HTMLTableRowElement>;

-    querySelectorAll(selectors: "track"): NodeListOf<HTMLTrackElement>;

-    querySelectorAll(selectors: "tspan"): NodeListOf<SVGTSpanElement>;

-    querySelectorAll(selectors: "tt"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "u"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "ul"): NodeListOf<HTMLUListElement>;

-    querySelectorAll(selectors: "use"): NodeListOf<SVGUseElement>;

-    querySelectorAll(selectors: "var"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "video"): NodeListOf<HTMLVideoElement>;

-    querySelectorAll(selectors: "view"): NodeListOf<SVGViewElement>;

-    querySelectorAll(selectors: "wbr"): NodeListOf<HTMLElement>;

-    querySelectorAll(selectors: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;

-    querySelectorAll(selectors: "xmp"): NodeListOf<HTMLPreElement>;

+    querySelectorAll<K extends keyof ElementListTagNameMap>(selectors: K): ElementListTagNameMap[K];

     querySelectorAll(selectors: string): NodeListOf<Element>;

 }

 

@@ -19850,21 +18601,25 @@ interface WindowTimersExtension {
     setImmediate(handler: any, ...args: any[]): number;

 }

 

+interface XMLHttpRequestEventTargetEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+    "timeout": ProgressEvent;

+}

+

 interface XMLHttpRequestEventTarget {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    ontimeout: (this: this, ev: ProgressEvent) => any;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    onabort: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onerror: (this: XMLHttpRequestEventTarget, ev: ErrorEvent) => any;

+    onload: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onloadend: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    onloadstart: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onprogress: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    ontimeout: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -20124,6 +18879,33 @@ interface ParentNode {
     readonly childElementCount: number;

 }

 

+interface DocumentOrShadowRoot {

+    readonly activeElement: Element | null;

+    readonly stylesheets: StyleSheetList;

+    getSelection(): Selection | null;

+    elementFromPoint(x: number, y: number): Element | null;

+    elementsFromPoint(x: number, y: number): Element[];

+}

+

+interface ShadowRoot extends DocumentOrShadowRoot, DocumentFragment {

+    readonly host: Element;

+    innerHTML: string;

+}

+

+interface ShadowRootInit {

+    mode: 'open'|'closed';

+    delegatesFocus?: boolean;

+}

+

+interface HTMLSlotElement extends HTMLElement {

+    name: string;

+    assignedNodes(options?: AssignedNodesOptions): Node[];

+}

+

+interface AssignedNodesOptions {

+    flatten?: boolean;

+}

+

 declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;

 

 interface ErrorEventHandler {

@@ -20171,6 +18953,447 @@ interface NavigatorUserMediaErrorCallback {
 interface ForEachCallback {

     (keyId: any, status: string): void;

 }

+interface HTMLElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "audio": HTMLAudioElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "del": HTMLModElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "embed": HTMLEmbedElement;

+    "fieldset": HTMLFieldSetElement;

+    "font": HTMLFontElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "iframe": HTMLIFrameElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "marquee": HTMLMarqueeElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "meter": HTMLMeterElement;

+    "nextid": HTMLUnknownElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "picture": HTMLPictureElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "script": HTMLScriptElement;

+    "select": HTMLSelectElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "style": HTMLStyleElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "ul": HTMLUListElement;

+    "video": HTMLVideoElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementTagNameMap {

+    "a": HTMLAnchorElement;

+    "abbr": HTMLElement;

+    "acronym": HTMLElement;

+    "address": HTMLElement;

+    "applet": HTMLAppletElement;

+    "area": HTMLAreaElement;

+    "article": HTMLElement;

+    "aside": HTMLElement;

+    "audio": HTMLAudioElement;

+    "b": HTMLElement;

+    "base": HTMLBaseElement;

+    "basefont": HTMLBaseFontElement;

+    "bdo": HTMLElement;

+    "big": HTMLElement;

+    "blockquote": HTMLQuoteElement;

+    "body": HTMLBodyElement;

+    "br": HTMLBRElement;

+    "button": HTMLButtonElement;

+    "canvas": HTMLCanvasElement;

+    "caption": HTMLTableCaptionElement;

+    "center": HTMLElement;

+    "circle": SVGCircleElement;

+    "cite": HTMLElement;

+    "clippath": SVGClipPathElement;

+    "code": HTMLElement;

+    "col": HTMLTableColElement;

+    "colgroup": HTMLTableColElement;

+    "datalist": HTMLDataListElement;

+    "dd": HTMLElement;

+    "defs": SVGDefsElement;

+    "del": HTMLModElement;

+    "desc": SVGDescElement;

+    "dfn": HTMLElement;

+    "dir": HTMLDirectoryElement;

+    "div": HTMLDivElement;

+    "dl": HTMLDListElement;

+    "dt": HTMLElement;

+    "ellipse": SVGEllipseElement;

+    "em": HTMLElement;

+    "embed": HTMLEmbedElement;

+    "feblend": SVGFEBlendElement;

+    "fecolormatrix": SVGFEColorMatrixElement;

+    "fecomponenttransfer": SVGFEComponentTransferElement;

+    "fecomposite": SVGFECompositeElement;

+    "feconvolvematrix": SVGFEConvolveMatrixElement;

+    "fediffuselighting": SVGFEDiffuseLightingElement;

+    "fedisplacementmap": SVGFEDisplacementMapElement;

+    "fedistantlight": SVGFEDistantLightElement;

+    "feflood": SVGFEFloodElement;

+    "fefunca": SVGFEFuncAElement;

+    "fefuncb": SVGFEFuncBElement;

+    "fefuncg": SVGFEFuncGElement;

+    "fefuncr": SVGFEFuncRElement;

+    "fegaussianblur": SVGFEGaussianBlurElement;

+    "feimage": SVGFEImageElement;

+    "femerge": SVGFEMergeElement;

+    "femergenode": SVGFEMergeNodeElement;

+    "femorphology": SVGFEMorphologyElement;

+    "feoffset": SVGFEOffsetElement;

+    "fepointlight": SVGFEPointLightElement;

+    "fespecularlighting": SVGFESpecularLightingElement;

+    "fespotlight": SVGFESpotLightElement;

+    "fetile": SVGFETileElement;

+    "feturbulence": SVGFETurbulenceElement;

+    "fieldset": HTMLFieldSetElement;

+    "figcaption": HTMLElement;

+    "figure": HTMLElement;

+    "filter": SVGFilterElement;

+    "font": HTMLFontElement;

+    "footer": HTMLElement;

+    "foreignobject": SVGForeignObjectElement;

+    "form": HTMLFormElement;

+    "frame": HTMLFrameElement;

+    "frameset": HTMLFrameSetElement;

+    "g": SVGGElement;

+    "h1": HTMLHeadingElement;

+    "h2": HTMLHeadingElement;

+    "h3": HTMLHeadingElement;

+    "h4": HTMLHeadingElement;

+    "h5": HTMLHeadingElement;

+    "h6": HTMLHeadingElement;

+    "head": HTMLHeadElement;

+    "header": HTMLElement;

+    "hgroup": HTMLElement;

+    "hr": HTMLHRElement;

+    "html": HTMLHtmlElement;

+    "i": HTMLElement;

+    "iframe": HTMLIFrameElement;

+    "image": SVGImageElement;

+    "img": HTMLImageElement;

+    "input": HTMLInputElement;

+    "ins": HTMLModElement;

+    "isindex": HTMLUnknownElement;

+    "kbd": HTMLElement;

+    "keygen": HTMLElement;

+    "label": HTMLLabelElement;

+    "legend": HTMLLegendElement;

+    "li": HTMLLIElement;

+    "line": SVGLineElement;

+    "lineargradient": SVGLinearGradientElement;

+    "link": HTMLLinkElement;

+    "listing": HTMLPreElement;

+    "map": HTMLMapElement;

+    "mark": HTMLElement;

+    "marker": SVGMarkerElement;

+    "marquee": HTMLMarqueeElement;

+    "mask": SVGMaskElement;

+    "menu": HTMLMenuElement;

+    "meta": HTMLMetaElement;

+    "metadata": SVGMetadataElement;

+    "meter": HTMLMeterElement;

+    "nav": HTMLElement;

+    "nextid": HTMLUnknownElement;

+    "nobr": HTMLElement;

+    "noframes": HTMLElement;

+    "noscript": HTMLElement;

+    "object": HTMLObjectElement;

+    "ol": HTMLOListElement;

+    "optgroup": HTMLOptGroupElement;

+    "option": HTMLOptionElement;

+    "p": HTMLParagraphElement;

+    "param": HTMLParamElement;

+    "path": SVGPathElement;

+    "pattern": SVGPatternElement;

+    "picture": HTMLPictureElement;

+    "plaintext": HTMLElement;

+    "polygon": SVGPolygonElement;

+    "polyline": SVGPolylineElement;

+    "pre": HTMLPreElement;

+    "progress": HTMLProgressElement;

+    "q": HTMLQuoteElement;

+    "radialgradient": SVGRadialGradientElement;

+    "rect": SVGRectElement;

+    "rt": HTMLElement;

+    "ruby": HTMLElement;

+    "s": HTMLElement;

+    "samp": HTMLElement;

+    "script": HTMLScriptElement;

+    "section": HTMLElement;

+    "select": HTMLSelectElement;

+    "small": HTMLElement;

+    "source": HTMLSourceElement;

+    "span": HTMLSpanElement;

+    "stop": SVGStopElement;

+    "strike": HTMLElement;

+    "strong": HTMLElement;

+    "style": HTMLStyleElement;

+    "sub": HTMLElement;

+    "sup": HTMLElement;

+    "svg": SVGSVGElement;

+    "switch": SVGSwitchElement;

+    "symbol": SVGSymbolElement;

+    "table": HTMLTableElement;

+    "tbody": HTMLTableSectionElement;

+    "td": HTMLTableDataCellElement;

+    "template": HTMLTemplateElement;

+    "text": SVGTextElement;

+    "textpath": SVGTextPathElement;

+    "textarea": HTMLTextAreaElement;

+    "tfoot": HTMLTableSectionElement;

+    "th": HTMLTableHeaderCellElement;

+    "thead": HTMLTableSectionElement;

+    "title": HTMLTitleElement;

+    "tr": HTMLTableRowElement;

+    "track": HTMLTrackElement;

+    "tspan": SVGTSpanElement;

+    "tt": HTMLElement;

+    "u": HTMLElement;

+    "ul": HTMLUListElement;

+    "use": SVGUseElement;

+    "var": HTMLElement;

+    "video": HTMLVideoElement;

+    "view": SVGViewElement;

+    "wbr": HTMLElement;

+    "x-ms-webview": MSHTMLWebViewElement;

+    "xmp": HTMLPreElement;

+}

+

+interface ElementListTagNameMap {

+    "a": NodeListOf<HTMLAnchorElement>;

+    "abbr": NodeListOf<HTMLElement>;

+    "acronym": NodeListOf<HTMLElement>;

+    "address": NodeListOf<HTMLElement>;

+    "applet": NodeListOf<HTMLAppletElement>;

+    "area": NodeListOf<HTMLAreaElement>;

+    "article": NodeListOf<HTMLElement>;

+    "aside": NodeListOf<HTMLElement>;

+    "audio": NodeListOf<HTMLAudioElement>;

+    "b": NodeListOf<HTMLElement>;

+    "base": NodeListOf<HTMLBaseElement>;

+    "basefont": NodeListOf<HTMLBaseFontElement>;

+    "bdo": NodeListOf<HTMLElement>;

+    "big": NodeListOf<HTMLElement>;

+    "blockquote": NodeListOf<HTMLQuoteElement>;

+    "body": NodeListOf<HTMLBodyElement>;

+    "br": NodeListOf<HTMLBRElement>;

+    "button": NodeListOf<HTMLButtonElement>;

+    "canvas": NodeListOf<HTMLCanvasElement>;

+    "caption": NodeListOf<HTMLTableCaptionElement>;

+    "center": NodeListOf<HTMLElement>;

+    "circle": NodeListOf<SVGCircleElement>;

+    "cite": NodeListOf<HTMLElement>;

+    "clippath": NodeListOf<SVGClipPathElement>;

+    "code": NodeListOf<HTMLElement>;

+    "col": NodeListOf<HTMLTableColElement>;

+    "colgroup": NodeListOf<HTMLTableColElement>;

+    "datalist": NodeListOf<HTMLDataListElement>;

+    "dd": NodeListOf<HTMLElement>;

+    "defs": NodeListOf<SVGDefsElement>;

+    "del": NodeListOf<HTMLModElement>;

+    "desc": NodeListOf<SVGDescElement>;

+    "dfn": NodeListOf<HTMLElement>;

+    "dir": NodeListOf<HTMLDirectoryElement>;

+    "div": NodeListOf<HTMLDivElement>;

+    "dl": NodeListOf<HTMLDListElement>;

+    "dt": NodeListOf<HTMLElement>;

+    "ellipse": NodeListOf<SVGEllipseElement>;

+    "em": NodeListOf<HTMLElement>;

+    "embed": NodeListOf<HTMLEmbedElement>;

+    "feblend": NodeListOf<SVGFEBlendElement>;

+    "fecolormatrix": NodeListOf<SVGFEColorMatrixElement>;

+    "fecomponenttransfer": NodeListOf<SVGFEComponentTransferElement>;

+    "fecomposite": NodeListOf<SVGFECompositeElement>;

+    "feconvolvematrix": NodeListOf<SVGFEConvolveMatrixElement>;

+    "fediffuselighting": NodeListOf<SVGFEDiffuseLightingElement>;

+    "fedisplacementmap": NodeListOf<SVGFEDisplacementMapElement>;

+    "fedistantlight": NodeListOf<SVGFEDistantLightElement>;

+    "feflood": NodeListOf<SVGFEFloodElement>;

+    "fefunca": NodeListOf<SVGFEFuncAElement>;

+    "fefuncb": NodeListOf<SVGFEFuncBElement>;

+    "fefuncg": NodeListOf<SVGFEFuncGElement>;

+    "fefuncr": NodeListOf<SVGFEFuncRElement>;

+    "fegaussianblur": NodeListOf<SVGFEGaussianBlurElement>;

+    "feimage": NodeListOf<SVGFEImageElement>;

+    "femerge": NodeListOf<SVGFEMergeElement>;

+    "femergenode": NodeListOf<SVGFEMergeNodeElement>;

+    "femorphology": NodeListOf<SVGFEMorphologyElement>;

+    "feoffset": NodeListOf<SVGFEOffsetElement>;

+    "fepointlight": NodeListOf<SVGFEPointLightElement>;

+    "fespecularlighting": NodeListOf<SVGFESpecularLightingElement>;

+    "fespotlight": NodeListOf<SVGFESpotLightElement>;

+    "fetile": NodeListOf<SVGFETileElement>;

+    "feturbulence": NodeListOf<SVGFETurbulenceElement>;

+    "fieldset": NodeListOf<HTMLFieldSetElement>;

+    "figcaption": NodeListOf<HTMLElement>;

+    "figure": NodeListOf<HTMLElement>;

+    "filter": NodeListOf<SVGFilterElement>;

+    "font": NodeListOf<HTMLFontElement>;

+    "footer": NodeListOf<HTMLElement>;

+    "foreignobject": NodeListOf<SVGForeignObjectElement>;

+    "form": NodeListOf<HTMLFormElement>;

+    "frame": NodeListOf<HTMLFrameElement>;

+    "frameset": NodeListOf<HTMLFrameSetElement>;

+    "g": NodeListOf<SVGGElement>;

+    "h1": NodeListOf<HTMLHeadingElement>;

+    "h2": NodeListOf<HTMLHeadingElement>;

+    "h3": NodeListOf<HTMLHeadingElement>;

+    "h4": NodeListOf<HTMLHeadingElement>;

+    "h5": NodeListOf<HTMLHeadingElement>;

+    "h6": NodeListOf<HTMLHeadingElement>;

+    "head": NodeListOf<HTMLHeadElement>;

+    "header": NodeListOf<HTMLElement>;

+    "hgroup": NodeListOf<HTMLElement>;

+    "hr": NodeListOf<HTMLHRElement>;

+    "html": NodeListOf<HTMLHtmlElement>;

+    "i": NodeListOf<HTMLElement>;

+    "iframe": NodeListOf<HTMLIFrameElement>;

+    "image": NodeListOf<SVGImageElement>;

+    "img": NodeListOf<HTMLImageElement>;

+    "input": NodeListOf<HTMLInputElement>;

+    "ins": NodeListOf<HTMLModElement>;

+    "isindex": NodeListOf<HTMLUnknownElement>;

+    "kbd": NodeListOf<HTMLElement>;

+    "keygen": NodeListOf<HTMLElement>;

+    "label": NodeListOf<HTMLLabelElement>;

+    "legend": NodeListOf<HTMLLegendElement>;

+    "li": NodeListOf<HTMLLIElement>;

+    "line": NodeListOf<SVGLineElement>;

+    "lineargradient": NodeListOf<SVGLinearGradientElement>;

+    "link": NodeListOf<HTMLLinkElement>;

+    "listing": NodeListOf<HTMLPreElement>;

+    "map": NodeListOf<HTMLMapElement>;

+    "mark": NodeListOf<HTMLElement>;

+    "marker": NodeListOf<SVGMarkerElement>;

+    "marquee": NodeListOf<HTMLMarqueeElement>;

+    "mask": NodeListOf<SVGMaskElement>;

+    "menu": NodeListOf<HTMLMenuElement>;

+    "meta": NodeListOf<HTMLMetaElement>;

+    "metadata": NodeListOf<SVGMetadataElement>;

+    "meter": NodeListOf<HTMLMeterElement>;

+    "nav": NodeListOf<HTMLElement>;

+    "nextid": NodeListOf<HTMLUnknownElement>;

+    "nobr": NodeListOf<HTMLElement>;

+    "noframes": NodeListOf<HTMLElement>;

+    "noscript": NodeListOf<HTMLElement>;

+    "object": NodeListOf<HTMLObjectElement>;

+    "ol": NodeListOf<HTMLOListElement>;

+    "optgroup": NodeListOf<HTMLOptGroupElement>;

+    "option": NodeListOf<HTMLOptionElement>;

+    "p": NodeListOf<HTMLParagraphElement>;

+    "param": NodeListOf<HTMLParamElement>;

+    "path": NodeListOf<SVGPathElement>;

+    "pattern": NodeListOf<SVGPatternElement>;

+    "picture": NodeListOf<HTMLPictureElement>;

+    "plaintext": NodeListOf<HTMLElement>;

+    "polygon": NodeListOf<SVGPolygonElement>;

+    "polyline": NodeListOf<SVGPolylineElement>;

+    "pre": NodeListOf<HTMLPreElement>;

+    "progress": NodeListOf<HTMLProgressElement>;

+    "q": NodeListOf<HTMLQuoteElement>;

+    "radialgradient": NodeListOf<SVGRadialGradientElement>;

+    "rect": NodeListOf<SVGRectElement>;

+    "rt": NodeListOf<HTMLElement>;

+    "ruby": NodeListOf<HTMLElement>;

+    "s": NodeListOf<HTMLElement>;

+    "samp": NodeListOf<HTMLElement>;

+    "script": NodeListOf<HTMLScriptElement>;

+    "section": NodeListOf<HTMLElement>;

+    "select": NodeListOf<HTMLSelectElement>;

+    "small": NodeListOf<HTMLElement>;

+    "source": NodeListOf<HTMLSourceElement>;

+    "span": NodeListOf<HTMLSpanElement>;

+    "stop": NodeListOf<SVGStopElement>;

+    "strike": NodeListOf<HTMLElement>;

+    "strong": NodeListOf<HTMLElement>;

+    "style": NodeListOf<HTMLStyleElement>;

+    "sub": NodeListOf<HTMLElement>;

+    "sup": NodeListOf<HTMLElement>;

+    "svg": NodeListOf<SVGSVGElement>;

+    "switch": NodeListOf<SVGSwitchElement>;

+    "symbol": NodeListOf<SVGSymbolElement>;

+    "table": NodeListOf<HTMLTableElement>;

+    "tbody": NodeListOf<HTMLTableSectionElement>;

+    "td": NodeListOf<HTMLTableDataCellElement>;

+    "template": NodeListOf<HTMLTemplateElement>;

+    "text": NodeListOf<SVGTextElement>;

+    "textpath": NodeListOf<SVGTextPathElement>;

+    "textarea": NodeListOf<HTMLTextAreaElement>;

+    "tfoot": NodeListOf<HTMLTableSectionElement>;

+    "th": NodeListOf<HTMLTableHeaderCellElement>;

+    "thead": NodeListOf<HTMLTableSectionElement>;

+    "title": NodeListOf<HTMLTitleElement>;

+    "tr": NodeListOf<HTMLTableRowElement>;

+    "track": NodeListOf<HTMLTrackElement>;

+    "tspan": NodeListOf<SVGTSpanElement>;

+    "tt": NodeListOf<HTMLElement>;

+    "u": NodeListOf<HTMLElement>;

+    "ul": NodeListOf<HTMLUListElement>;

+    "use": NodeListOf<SVGUseElement>;

+    "var": NodeListOf<HTMLElement>;

+    "video": NodeListOf<HTMLVideoElement>;

+    "view": NodeListOf<SVGViewElement>;

+    "wbr": NodeListOf<HTMLElement>;

+    "x-ms-webview": NodeListOf<MSHTMLWebViewElement>;

+    "xmp": NodeListOf<HTMLPreElement>;

+}

+

 declare var Audio: {new(src?: string): HTMLAudioElement; };

 declare var Image: {new(width?: number, height?: number): HTMLImageElement; };

 declare var Option: {new(text?: string, value?: string, defaultSelected?: boolean, selected?: boolean): HTMLOptionElement; };

@@ -20345,7 +19568,6 @@ declare function scroll(options?: ScrollToOptions): void;
 declare function scrollTo(options?: ScrollToOptions): void;

 declare function scrollBy(options?: ScrollToOptions): void;

 declare function toString(): string;

-declare function addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function dispatchEvent(evt: Event): boolean;

 declare function removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function clearInterval(handle: number): void;

@@ -20372,101 +19594,7 @@ declare var onwheel: (this: Window, ev: WheelEvent) => any;
 declare var indexedDB: IDBFactory;

 declare function atob(encodedString: string): string;

 declare function btoa(rawString: string): string;

-declare function addEventListener(type: "MSGestureChange", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureDoubleTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureEnd", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureHold", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSGestureTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSInertiaStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerCancel", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerDown", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerEnter", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerLeave", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerMove", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOut", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerOver", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "MSPointerUp", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "abort", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "afterprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "beforeunload", listener: (this: Window, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "blur", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplay", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "canplaythrough", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "change", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "click", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "compassneedscalibration", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "contextmenu", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dblclick", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicelight", listener: (this: Window, ev: DeviceLightEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "devicemotion", listener: (this: Window, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "deviceorientation", listener: (this: Window, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drag", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragend", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragenter", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragleave", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragover", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "dragstart", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "drop", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "durationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "emptied", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ended", listener: (this: Window, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "focus", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "hashchange", listener: (this: Window, ev: HashChangeEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "input", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "invalid", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keydown", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keypress", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "keyup", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "load", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadeddata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadedmetadata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "loadstart", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "message", listener: (this: Window, ev: MessageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousedown", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseenter", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseleave", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousemove", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseout", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseover", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mouseup", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "mousewheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "offline", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "online", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "orientationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pagehide", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pageshow", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pause", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "play", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "playing", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointercancel", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerdown", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerenter", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerleave", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointermove", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerout", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerover", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "pointerup", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "popstate", listener: (this: Window, ev: PopStateEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "progress", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "ratechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "readystatechange", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "reset", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "resize", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "scroll", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeked", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "seeking", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "select", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "stalled", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "storage", listener: (this: Window, ev: StorageEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "submit", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "suspend", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "timeupdate", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "unload", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "volumechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "waiting", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "wheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;

+declare function addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, useCapture?: boolean): void;

 declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 type AAGUID = string;

 type AlgorithmIdentifier = string | Algorithm;

diff --git a/node_modules/typescript/lib/lib.webworker.d.ts b/node_modules/typescript/lib/lib.webworker.d.ts
index cef348959..97eb9814e 100644
--- a/node_modules/typescript/lib/lib.webworker.d.ts
+++ b/node_modules/typescript/lib/lib.webworker.d.ts
@@ -28,6 +28,7 @@ interface Algorithm {
 }

 

 interface EventInit {

+    scoped?: boolean;

     bubbles?: boolean;

     cancelable?: boolean;

 }

@@ -262,10 +263,12 @@ interface Event {
     readonly target: EventTarget;

     readonly timeStamp: number;

     readonly type: string;

+    readonly scoped: boolean;

     initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;

     preventDefault(): void;

     stopImmediatePropagation(): void;

     stopPropagation(): void;

+    deepPath(): EventTarget[];

     readonly AT_TARGET: number;

     readonly BUBBLING_PHASE: number;

     readonly CAPTURING_PHASE: number;

@@ -318,6 +321,7 @@ interface FileReader extends EventTarget, MSBaseReader {
     readAsBinaryString(blob: Blob): void;

     readAsDataURL(blob: Blob): void;

     readAsText(blob: Blob, encoding?: string): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -359,11 +363,16 @@ declare var IDBCursorWithValue: {
     new(): IDBCursorWithValue;

 }

 

+interface IDBDatabaseEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBDatabase extends EventTarget {

     readonly name: string;

     readonly objectStoreNames: DOMStringList;

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBDatabase, ev: Event) => any;

+    onerror: (this: IDBDatabase, ev: ErrorEvent) => any;

     version: number;

     onversionchange: (ev: IDBVersionChangeEvent) => any;

     close(): void;

@@ -371,8 +380,7 @@ interface IDBDatabase extends EventTarget {
     deleteObjectStore(name: string): void;

     transaction(storeNames: string | string[], mode?: string): IDBTransaction;

     addEventListener(type: "versionchange", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -449,13 +457,15 @@ declare var IDBObjectStore: {
     new(): IDBObjectStore;

 }

 

+interface IDBOpenDBRequestEventMap extends IDBRequestEventMap {

+    "blocked": Event;

+    "upgradeneeded": IDBVersionChangeEvent;

+}

+

 interface IDBOpenDBRequest extends IDBRequest {

-    onblocked: (this: this, ev: Event) => any;

-    onupgradeneeded: (this: this, ev: IDBVersionChangeEvent) => any;

-    addEventListener(type: "blocked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "upgradeneeded", listener: (this: this, ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;

+    onblocked: (this: IDBOpenDBRequest, ev: Event) => any;

+    onupgradeneeded: (this: IDBOpenDBRequest, ev: IDBVersionChangeEvent) => any;

+    addEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -464,16 +474,20 @@ declare var IDBOpenDBRequest: {
     new(): IDBOpenDBRequest;

 }

 

+interface IDBRequestEventMap {

+    "error": ErrorEvent;

+    "success": Event;

+}

+

 interface IDBRequest extends EventTarget {

     readonly error: DOMError;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onsuccess: (this: this, ev: Event) => any;

+    onerror: (this: IDBRequest, ev: ErrorEvent) => any;

+    onsuccess: (this: IDBRequest, ev: Event) => any;

     readonly readyState: string;

     readonly result: any;

     source: IDBObjectStore | IDBIndex | IDBCursor;

     readonly transaction: IDBTransaction;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -482,21 +496,25 @@ declare var IDBRequest: {
     new(): IDBRequest;

 }

 

+interface IDBTransactionEventMap {

+    "abort": Event;

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface IDBTransaction extends EventTarget {

     readonly db: IDBDatabase;

     readonly error: DOMError;

     readonly mode: string;

-    onabort: (this: this, ev: Event) => any;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onabort: (this: IDBTransaction, ev: Event) => any;

+    oncomplete: (this: IDBTransaction, ev: Event) => any;

+    onerror: (this: IDBTransaction, ev: ErrorEvent) => any;

     abort(): void;

     objectStore(name: string): IDBObjectStore;

     readonly READ_ONLY: string;

     readonly READ_WRITE: string;

     readonly VERSION_CHANGE: string;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -553,18 +571,22 @@ interface MSApp {
 }

 declare var MSApp: MSApp;

 

+interface MSAppAsyncOperationEventMap {

+    "complete": Event;

+    "error": ErrorEvent;

+}

+

 interface MSAppAsyncOperation extends EventTarget {

     readonly error: DOMError;

-    oncomplete: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    oncomplete: (this: MSAppAsyncOperation, ev: Event) => any;

+    onerror: (this: MSAppAsyncOperation, ev: ErrorEvent) => any;

     readonly readyState: number;

     readonly result: any;

     start(): void;

     readonly COMPLETED: number;

     readonly ERROR: number;

     readonly STARTED: number;

-    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSAppAsyncOperationEventMap>(type: K, listener: (this: MSAppAsyncOperation, ev: MSAppAsyncOperationEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -604,6 +626,7 @@ interface MSStreamReader extends EventTarget, MSBaseReader {
     readAsBlob(stream: MSStream, size?: number): void;

     readAsDataURL(stream: MSStream, size?: number): void;

     readAsText(stream: MSStream, encoding?: string, size?: number): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -647,12 +670,16 @@ declare var MessageEvent: {
     new(type: string, eventInitDict?: MessageEventInit): MessageEvent;

 }

 

+interface MessagePortEventMap {

+    "message": MessageEvent;

+}

+

 interface MessagePort extends EventTarget {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: MessagePort, ev: MessageEvent) => any;

     close(): void;

     postMessage(message?: any, ports?: any): void;

     start(): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -700,14 +727,21 @@ declare var ProgressEvent: {
     new(type: string, eventInitDict?: ProgressEventInit): ProgressEvent;

 }

 

+interface WebSocketEventMap {

+    "close": CloseEvent;

+    "error": ErrorEvent;

+    "message": MessageEvent;

+    "open": Event;

+}

+

 interface WebSocket extends EventTarget {

     binaryType: string;

     readonly bufferedAmount: number;

     readonly extensions: string;

-    onclose: (this: this, ev: CloseEvent) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onmessage: (this: this, ev: MessageEvent) => any;

-    onopen: (this: this, ev: Event) => any;

+    onclose: (this: WebSocket, ev: CloseEvent) => any;

+    onerror: (this: WebSocket, ev: ErrorEvent) => any;

+    onmessage: (this: WebSocket, ev: MessageEvent) => any;

+    onopen: (this: WebSocket, ev: Event) => any;

     readonly protocol: string;

     readonly readyState: number;

     readonly url: string;

@@ -717,10 +751,7 @@ interface WebSocket extends EventTarget {
     readonly CLOSING: number;

     readonly CONNECTING: number;

     readonly OPEN: number;

-    addEventListener(type: "close", listener: (this: this, ev: CloseEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -733,12 +764,15 @@ declare var WebSocket: {
     readonly OPEN: number;

 }

 

+interface WorkerEventMap extends AbstractWorkerEventMap {

+    "message": MessageEvent;

+}

+

 interface Worker extends EventTarget, AbstractWorker {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: Worker, ev: MessageEvent) => any;

     postMessage(message: any, ports?: any): void;

     terminate(): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -747,8 +781,12 @@ declare var Worker: {
     new(stringUrl: string): Worker;

 }

 

+interface XMLHttpRequestEventMap extends XMLHttpRequestEventTargetEventMap {

+    "readystatechange": Event;

+}

+

 interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {

-    onreadystatechange: (this: this, ev: Event) => any;

+    onreadystatechange: (this: XMLHttpRequest, ev: Event) => any;

     readonly readyState: number;

     readonly response: any;

     readonly responseText: string;

@@ -775,14 +813,7 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     readonly LOADING: number;

     readonly OPENED: number;

     readonly UNSENT: number;

-    addEventListener(type: "abort", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "readystatechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -798,6 +829,7 @@ declare var XMLHttpRequest: {
 }

 

 interface XMLHttpRequestUpload extends EventTarget, XMLHttpRequestEventTarget {

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -806,31 +838,39 @@ declare var XMLHttpRequestUpload: {
     new(): XMLHttpRequestUpload;

 }

 

+interface AbstractWorkerEventMap {

+    "error": ErrorEvent;

+}

+

 interface AbstractWorker {

-    onerror: (this: this, ev: ErrorEvent) => any;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

+    onerror: (this: AbstractWorker, ev: ErrorEvent) => any;

+    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

+interface MSBaseReaderEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+}

+

 interface MSBaseReader {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

+    onabort: (this: MSBaseReader, ev: Event) => any;

+    onerror: (this: MSBaseReader, ev: ErrorEvent) => any;

+    onload: (this: MSBaseReader, ev: Event) => any;

+    onloadend: (this: MSBaseReader, ev: ProgressEvent) => any;

+    onloadstart: (this: MSBaseReader, ev: Event) => any;

+    onprogress: (this: MSBaseReader, ev: ProgressEvent) => any;

     readonly readyState: number;

     readonly result: any;

     abort(): void;

     readonly DONE: number;

     readonly EMPTY: number;

     readonly LOADING: number;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof MSBaseReaderEventMap>(type: K, listener: (this: MSBaseReader, ev: MSBaseReaderEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -858,21 +898,25 @@ interface WindowConsole {
     readonly console: Console;

 }

 

+interface XMLHttpRequestEventTargetEventMap {

+    "abort": Event;

+    "error": ErrorEvent;

+    "load": Event;

+    "loadend": ProgressEvent;

+    "loadstart": Event;

+    "progress": ProgressEvent;

+    "timeout": ProgressEvent;

+}

+

 interface XMLHttpRequestEventTarget {

-    onabort: (this: this, ev: Event) => any;

-    onerror: (this: this, ev: ErrorEvent) => any;

-    onload: (this: this, ev: Event) => any;

-    onloadend: (this: this, ev: ProgressEvent) => any;

-    onloadstart: (this: this, ev: Event) => any;

-    onprogress: (this: this, ev: ProgressEvent) => any;

-    ontimeout: (this: this, ev: ProgressEvent) => any;

-    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;

-    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;

+    onabort: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onerror: (this: XMLHttpRequestEventTarget, ev: ErrorEvent) => any;

+    onload: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onloadend: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    onloadstart: (this: XMLHttpRequestEventTarget, ev: Event) => any;

+    onprogress: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    ontimeout: (this: XMLHttpRequestEventTarget, ev: ProgressEvent) => any;

+    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -888,15 +932,18 @@ declare var FileReaderSync: {
     new(): FileReaderSync;

 }

 

+interface WorkerGlobalScopeEventMap extends DedicatedWorkerGlobalScopeEventMap {

+    "error": ErrorEvent;

+}

+

 interface WorkerGlobalScope extends EventTarget, WorkerUtils, DedicatedWorkerGlobalScope, WindowConsole {

     readonly location: WorkerLocation;

-    onerror: (this: this, ev: ErrorEvent) => any;

+    onerror: (this: WorkerGlobalScope, ev: ErrorEvent) => any;

     readonly self: WorkerGlobalScope;

     close(): void;

     msWriteProfilerMark(profilerMarkName: string): void;

     toString(): string;

-    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof WorkerGlobalScopeEventMap>(type: K, listener: (this: WorkerGlobalScope, ev: WorkerGlobalScopeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -924,7 +971,6 @@ declare var WorkerLocation: {
 

 interface WorkerNavigator extends Object, NavigatorID, NavigatorOnLine {

     readonly hardwareConcurrency: number;

-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

 declare var WorkerNavigator: {

@@ -932,10 +978,14 @@ declare var WorkerNavigator: {
     new(): WorkerNavigator;

 }

 

+interface DedicatedWorkerGlobalScopeEventMap {

+    "message": MessageEvent;

+}

+

 interface DedicatedWorkerGlobalScope {

-    onmessage: (this: this, ev: MessageEvent) => any;

+    onmessage: (this: DedicatedWorkerGlobalScope, ev: MessageEvent) => any;

     postMessage(data: any): void;

-    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;

+    addEventListener<K extends keyof DedicatedWorkerGlobalScopeEventMap>(type: K, listener: (this: DedicatedWorkerGlobalScope, ev: DedicatedWorkerGlobalScopeEventMap[K]) => any, useCapture?: boolean): void;

     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 }

 

@@ -1196,7 +1246,6 @@ declare var self: WorkerGlobalScope;
 declare function close(): void;

 declare function msWriteProfilerMark(profilerMarkName: string): void;

 declare function toString(): string;

-declare function addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare function dispatchEvent(evt: Event): boolean;

 declare function removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 declare var indexedDB: IDBFactory;

@@ -1217,8 +1266,7 @@ declare function btoa(rawString: string): string;
 declare var onmessage: (this: WorkerGlobalScope, ev: MessageEvent) => any;

 declare function postMessage(data: any): void;

 declare var console: Console;

-declare function addEventListener(type: "error", listener: (this: WorkerGlobalScope, ev: ErrorEvent) => any, useCapture?: boolean): void;

-declare function addEventListener(type: "message", listener: (this: WorkerGlobalScope, ev: MessageEvent) => any, useCapture?: boolean): void;

+declare function addEventListener<K extends keyof WorkerGlobalScopeEventMap>(type: K, listener: (this: WorkerGlobalScope, ev: WorkerGlobalScopeEventMap[K]) => any, useCapture?: boolean): void;

 declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;

 type AlgorithmIdentifier = string | Algorithm;

 type IDBKeyPath = string;

diff --git a/node_modules/typescript/lib/protocol.d.ts b/node_modules/typescript/lib/protocol.d.ts
index f11eb83cc..c2577c247 100644
--- a/node_modules/typescript/lib/protocol.d.ts
+++ b/node_modules/typescript/lib/protocol.d.ts
@@ -680,9 +680,13 @@ declare namespace ts.server.protocol {
          */

         options: ExternalProjectCompilerOptions;

         /**

-         * Explicitly specified typing options for the project

+         * @deprecated typingOptions. Use typeAcquisition instead

          */

-        typingOptions?: TypingOptions;

+        typingOptions?: TypeAcquisition;

+        /**

+         * Explicitly specified type acquisition for the project

+         */

+        typeAcquisition?: TypeAcquisition;

     }

     interface CompileOnSaveMixin {

         /**

@@ -1653,6 +1657,10 @@ declare namespace ts.server.protocol {
          * true if install request succeeded, otherwise - false

          */

         installSuccess: boolean;

+        /**

+         * version of typings installer

+         */

+        typingsInstallerVersion: string;

     }

     interface NavBarResponse extends Response {

         body?: NavigationBarItem[];

@@ -1802,8 +1810,9 @@ declare namespace ts.server.protocol {
         position: number;
     }
 
-    interface TypingOptions {
+    interface TypeAcquisition {
         enableAutoDiscovery?: boolean;
+        enable?: boolean;
         include?: string[];
         exclude?: string[];
         [option: string]: string[] | boolean | undefined;
diff --git a/node_modules/typescript/lib/tsc.js b/node_modules/typescript/lib/tsc.js
index 9fb150670..e08661bd1 100644
--- a/node_modules/typescript/lib/tsc.js
+++ b/node_modules/typescript/lib/tsc.js
@@ -132,6 +132,9 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+(function (ts) {
     var createObject = Object.create;
     ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
     function createMap(template) {
@@ -601,7 +604,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -616,6 +619,14 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; })
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
+            .map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -770,6 +781,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -1222,6 +1242,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
         for (var i = 0; i < str.length; i++) {
@@ -1772,6 +1800,16 @@ var ts;
         }
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
     function orderedRemoveItemAt(array, index) {
         for (var i = index; i < array.length - 1; i++) {
             array[i] = array[i + 1];
@@ -2806,7 +2844,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -2871,7 +2909,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -2942,6 +2981,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -3156,9 +3196,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -3170,6 +3210,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 var ts;
@@ -4906,28 +4949,28 @@ var ts;
         return !nodeIsMissing(node);
     }
     ts.nodeIsPresent = nodeIsPresent;
-    function getTokenPosOfNode(node, sourceFile, includeJsDocComment) {
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
         if (nodeIsMissing(node)) {
             return node.pos;
         }
         if (isJSDocNode(node)) {
             return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, false, true);
         }
-        if (includeJsDocComment && node.jsDocComments && node.jsDocComments.length > 0) {
-            return getTokenPosOfNode(node.jsDocComments[0]);
+        if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
+            return getTokenPosOfNode(node.jsDoc[0]);
         }
-        if (node.kind === 291 && node._children.length > 0) {
-            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDocComment);
+        if (node.kind === 292 && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
         }
         return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
     }
     ts.getTokenPosOfNode = getTokenPosOfNode;
     function isJSDocNode(node) {
-        return node.kind >= 262 && node.kind <= 287;
+        return node.kind >= 262 && node.kind <= 288;
     }
     ts.isJSDocNode = isJSDocNode;
     function isJSDocTag(node) {
-        return node.kind >= 278 && node.kind <= 290;
+        return node.kind >= 278 && node.kind <= 291;
     }
     ts.isJSDocTag = isJSDocTag;
     function getNonDecoratorTokenPosOfNode(node, sourceFile) {
@@ -5104,7 +5147,7 @@ var ts;
             case 8:
                 return name.text;
             case 142:
-                if (isStringOrNumericLiteral(name.expression.kind)) {
+                if (isStringOrNumericLiteral(name.expression)) {
                     return name.expression.text;
                 }
         }
@@ -5226,7 +5269,8 @@ var ts;
     }
     ts.isSuperCall = isSuperCall;
     function isPrologueDirective(node) {
-        return node.kind === 207 && node.expression.kind === 9;
+        return node.kind === 207
+            && node.expression.kind === 9;
     }
     ts.isPrologueDirective = isPrologueDirective;
     function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
@@ -5237,25 +5281,20 @@ var ts;
         return ts.getLeadingCommentRanges(text, node.pos);
     }
     ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
-    function getJsDocComments(node, sourceFileOfNode) {
-        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
-    }
-    ts.getJsDocComments = getJsDocComments;
-    function getJsDocCommentsFromText(node, text) {
+    function getJSDocCommentRanges(node, text) {
         var commentRanges = (node.kind === 144 ||
             node.kind === 143 ||
             node.kind === 184 ||
             node.kind === 185) ?
             ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
             getLeadingCommentRangesOfNodeFromText(node, text);
-        return ts.filter(commentRanges, isJsDocComment);
-        function isJsDocComment(comment) {
+        return ts.filter(commentRanges, function (comment) {
             return text.charCodeAt(comment.pos + 1) === 42 &&
                 text.charCodeAt(comment.pos + 2) === 42 &&
                 text.charCodeAt(comment.pos + 3) !== 47;
-        }
+        });
     }
-    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
     ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
@@ -5781,6 +5820,7 @@ var ts;
                     case 145:
                     case 252:
                     case 251:
+                    case 259:
                         return true;
                     case 199:
                         return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
@@ -5935,152 +5975,118 @@ var ts;
             node.parameters[0].type.kind === 276;
     }
     ts.isJSDocConstructSignature = isJSDocConstructSignature;
-    function getJSDocTag(node, kind, checkParentVariableStatement) {
-        if (!node) {
-            return undefined;
-        }
-        var jsDocTags = getJSDocTags(node, checkParentVariableStatement);
-        if (!jsDocTags) {
-            return undefined;
-        }
-        for (var _i = 0, jsDocTags_1 = jsDocTags; _i < jsDocTags_1.length; _i++) {
-            var tag = jsDocTags_1[_i];
-            if (tag.kind === kind) {
-                return tag;
-            }
-        }
+    function getCommentsFromJSDoc(node) {
+        return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
     }
-    function append(previous, additional) {
-        if (additional) {
-            if (!previous) {
-                previous = [];
-            }
-            for (var _i = 0, additional_1 = additional; _i < additional_1.length; _i++) {
-                var x = additional_1[_i];
-                previous.push(x);
-            }
-        }
-        return previous;
-    }
-    function getJSDocComments(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) { return ts.map(docs, function (doc) { return doc.comment; }); }, function (tags) { return ts.map(tags, function (tag) { return tag.comment; }); });
-    }
-    ts.getJSDocComments = getJSDocComments;
-    function getJSDocTags(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) {
+    ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
+    function getJSDocTags(node, kind) {
+        var docs = getJSDocs(node);
+        if (docs) {
             var result = [];
             for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                 var doc = docs_1[_i];
-                if (doc.tags) {
-                    result.push.apply(result, doc.tags);
+                if (doc.kind === 281) {
+                    if (doc.kind === kind) {
+                        result.push(doc);
+                    }
+                }
+                else {
+                    result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
                 }
             }
             return result;
-        }, function (tags) { return tags; });
-    }
-    function getJSDocs(node, checkParentVariableStatement, getDocs, getTags) {
-        var result = undefined;
-        if (checkParentVariableStatement) {
-            var isInitializerOfVariableDeclarationInStatement = isVariableLike(node.parent) &&
-                (node.parent).initializer === node &&
-                node.parent.parent.parent.kind === 205;
+        }
+    }
+    function getFirstJSDocTag(node, kind) {
+        return node && ts.firstOrUndefined(getJSDocTags(node, kind));
+    }
+    function getJSDocs(node) {
+        var cache = node.jsDocCache;
+        if (!cache) {
+            getJSDocsWorker(node);
+            node.jsDocCache = cache;
+        }
+        return cache;
+        function getJSDocsWorker(node) {
+            var parent = node.parent;
+            var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
+                parent.initializer === node &&
+                parent.parent.parent.kind === 205;
             var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
-                node.parent.parent.kind === 205;
-            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent :
-                isVariableOfVariableDeclarationStatement ? node.parent.parent :
+                parent.parent.kind === 205;
+            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
+                isVariableOfVariableDeclarationStatement ? parent.parent :
                     undefined;
             if (variableStatementNode) {
-                result = append(result, getJSDocs(variableStatementNode, checkParentVariableStatement, getDocs, getTags));
-            }
-            if (node.kind === 230 &&
-                node.parent && node.parent.kind === 230) {
-                result = append(result, getJSDocs(node.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(variableStatementNode);
             }
-            var parent_4 = node.parent;
-            var isSourceOfAssignmentExpressionStatement = parent_4 && parent_4.parent &&
-                parent_4.kind === 192 &&
-                parent_4.operatorToken.kind === 57 &&
-                parent_4.parent.kind === 207;
+            var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
+                parent.kind === 192 &&
+                parent.operatorToken.kind === 57 &&
+                parent.parent.kind === 207;
             if (isSourceOfAssignmentExpressionStatement) {
-                result = append(result, getJSDocs(parent_4.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(parent.parent);
             }
-            var isPropertyAssignmentExpression = parent_4 && parent_4.kind === 257;
-            if (isPropertyAssignmentExpression) {
-                result = append(result, getJSDocs(parent_4, checkParentVariableStatement, getDocs, getTags));
+            var isModuleDeclaration = node.kind === 230 &&
+                parent && parent.kind === 230;
+            var isPropertyAssignmentExpression = parent && parent.kind === 257;
+            if (isModuleDeclaration || isPropertyAssignmentExpression) {
+                getJSDocsWorker(parent);
             }
             if (node.kind === 144) {
-                var paramTags = getJSDocParameterTag(node, checkParentVariableStatement);
-                if (paramTags) {
-                    result = append(result, getTags(paramTags));
-                }
+                cache = ts.concatenate(cache, getJSDocParameterTags(node));
             }
-        }
-        if (isVariableLike(node) && node.initializer) {
-            result = append(result, getJSDocs(node.initializer, false, getDocs, getTags));
-        }
-        if (node.jsDocComments) {
-            if (result) {
-                result = append(result, getDocs(node.jsDocComments));
-            }
-            else {
-                return getDocs(node.jsDocComments);
+            if (isVariableLike(node) && node.initializer) {
+                cache = ts.concatenate(cache, node.initializer.jsDoc);
             }
+            cache = ts.concatenate(cache, node.jsDoc);
         }
-        return result;
     }
-    function getJSDocParameterTag(param, checkParentVariableStatement) {
+    function getJSDocParameterTags(param) {
+        if (!isParameter(param)) {
+            return undefined;
+        }
         var func = param.parent;
-        var tags = getJSDocTags(func, checkParentVariableStatement);
+        var tags = getJSDocTags(func, 281);
         if (!param.name) {
             var i = func.parameters.indexOf(param);
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280; });
+            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281; });
             if (paramTags && 0 <= i && i < paramTags.length) {
                 return [paramTags[i]];
             }
         }
         else if (param.name.kind === 70) {
             var name_6 = param.name.text;
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 && tag.parameterName.text === name_6; });
-            if (paramTags) {
-                return paramTags;
-            }
+            return ts.filter(tags, function (tag) { return tag.kind === 281 && tag.parameterName.text === name_6; });
         }
         else {
             return undefined;
         }
     }
-    function getJSDocTypeTag(node) {
-        return getJSDocTag(node, 282, false);
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, 283);
+        if (!tag && node.kind === 144) {
+            var paramTags = getJSDocParameterTags(node);
+            if (paramTags) {
+                tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
+            }
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
     }
-    ts.getJSDocTypeTag = getJSDocTypeTag;
+    ts.getJSDocType = getJSDocType;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, 280);
+    }
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
     function getJSDocReturnTag(node) {
-        return getJSDocTag(node, 281, true);
+        return getFirstJSDocTag(node, 282);
     }
     ts.getJSDocReturnTag = getJSDocReturnTag;
     function getJSDocTemplateTag(node) {
-        return getJSDocTag(node, 283, false);
+        return getFirstJSDocTag(node, 284);
     }
     ts.getJSDocTemplateTag = getJSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter) {
-        if (parameter.name && parameter.name.kind === 70) {
-            var parameterName = parameter.name.text;
-            var jsDocTags = getJSDocTags(parameter.parent, true);
-            if (!jsDocTags) {
-                return undefined;
-            }
-            for (var _i = 0, jsDocTags_2 = jsDocTags; _i < jsDocTags_2.length; _i++) {
-                var tag = jsDocTags_2[_i];
-                if (tag.kind === 280) {
-                    var parameterTag = tag;
-                    if (parameterTag.parameterName.text === parameterName) {
-                        return parameterTag;
-                    }
-                }
-            }
-        }
-        return undefined;
-    }
-    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
     function hasRestParameter(s) {
         return isRestParameter(ts.lastOrUndefined(s.parameters));
     }
@@ -6091,13 +6097,10 @@ var ts;
     ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
     function isRestParameter(node) {
         if (node && (node.flags & 2097152)) {
-            if (node.type && node.type.kind === 275) {
+            if (node.type && node.type.kind === 275 ||
+                ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275; })) {
                 return true;
             }
-            var paramTag = getCorrespondingJSDocParameterTag(node);
-            if (paramTag && paramTag.typeExpression) {
-                return paramTag.typeExpression.type.kind === 275;
-            }
         }
         return isDeclaredRestParam(node);
     }
@@ -6320,8 +6323,10 @@ var ts;
         return isFunctionLike(node) && hasModifier(node, 256) && !isAccessor(node);
     }
     ts.isAsyncFunctionLike = isAsyncFunctionLike;
-    function isStringOrNumericLiteral(kind) {
-        return kind === 9 || kind === 8;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 9
+            || kind === 8;
     }
     ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
     function hasDynamicName(declaration) {
@@ -6330,7 +6335,7 @@ var ts;
     ts.hasDynamicName = hasDynamicName;
     function isDynamicName(name) {
         return name.kind === 142 &&
-            !isStringOrNumericLiteral(name.expression.kind) &&
+            !isStringOrNumericLiteral(name.expression) &&
             !isWellKnownSymbolSyntactically(name.expression);
     }
     ts.isDynamicName = isDynamicName;
@@ -6536,6 +6541,7 @@ var ts;
             case 194:
             case 183:
             case 198:
+            case 297:
                 return 19;
             case 181:
             case 177:
@@ -7297,19 +7303,19 @@ var ts;
         }
     }
     ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
-    function isAssignmentExpression(node) {
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
         return isBinaryExpression(node)
-            && isAssignmentOperator(node.operatorToken.kind)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 57
+                : isAssignmentOperator(node.operatorToken.kind))
             && isLeftHandSideExpression(node.left);
     }
     ts.isAssignmentExpression = isAssignmentExpression;
     function isDestructuringAssignment(node) {
-        if (isBinaryExpression(node)) {
-            if (node.operatorToken.kind === 57) {
-                var kind = node.left.kind;
-                return kind === 176
-                    || kind === 175;
-            }
+        if (isAssignmentExpression(node, true)) {
+            var kind = node.left.kind;
+            return kind === 176
+                || kind === 175;
         }
         return false;
     }
@@ -7620,122 +7626,6 @@ var ts;
         return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
     }
     ts.getStartPositionOfRange = getStartPositionOfRange;
-    function collectExternalModuleInfo(sourceFile, resolver) {
-        var externalImports = [];
-        var exportSpecifiers = ts.createMap();
-        var exportedBindings = ts.createMap();
-        var uniqueExports = ts.createMap();
-        var hasExportDefault = false;
-        var exportEquals = undefined;
-        var hasExportStarsToExportValues = false;
-        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
-            var node = _a[_i];
-            switch (node.kind) {
-                case 235:
-                    externalImports.push(node);
-                    break;
-                case 234:
-                    if (node.moduleReference.kind === 245) {
-                        externalImports.push(node);
-                    }
-                    break;
-                case 241:
-                    if (node.moduleSpecifier) {
-                        if (!node.exportClause) {
-                            externalImports.push(node);
-                            hasExportStarsToExportValues = true;
-                        }
-                        else {
-                            externalImports.push(node);
-                        }
-                    }
-                    else {
-                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
-                            var specifier = _c[_b];
-                            if (!uniqueExports[specifier.name.text]) {
-                                var name_8 = specifier.propertyName || specifier.name;
-                                ts.multiMapAdd(exportSpecifiers, name_8.text, specifier);
-                                var decl = resolver.getReferencedImportDeclaration(name_8)
-                                    || resolver.getReferencedValueDeclaration(name_8);
-                                if (decl) {
-                                    ts.multiMapAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
-                                }
-                                uniqueExports[specifier.name.text] = specifier.name;
-                            }
-                        }
-                    }
-                    break;
-                case 240:
-                    if (node.isExportEquals && !exportEquals) {
-                        exportEquals = node;
-                    }
-                    break;
-                case 205:
-                    if (hasModifier(node, 1)) {
-                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
-                            var decl = _e[_d];
-                            collectExportedVariableInfo(decl, uniqueExports);
-                        }
-                    }
-                    break;
-                case 225:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_9 = node.name;
-                            if (!uniqueExports[name_9.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_9);
-                                uniqueExports[name_9.text] = name_9;
-                            }
-                        }
-                    }
-                    break;
-                case 226:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_10 = node.name;
-                            if (!uniqueExports[name_10.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_10);
-                                uniqueExports[name_10.text] = name_10;
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        var exportedNames;
-        for (var key in uniqueExports) {
-            exportedNames = ts.append(exportedNames, uniqueExports[key]);
-        }
-        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames };
-    }
-    ts.collectExternalModuleInfo = collectExternalModuleInfo;
-    function collectExportedVariableInfo(decl, uniqueExports) {
-        if (isBindingPattern(decl.name)) {
-            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
-                var element = _a[_i];
-                if (!isOmittedExpression(element)) {
-                    collectExportedVariableInfo(element, uniqueExports);
-                }
-            }
-        }
-        else if (!isGeneratedIdentifier(decl.name)) {
-            if (!uniqueExports[decl.name.text]) {
-                uniqueExports[decl.name.text] = decl.name;
-            }
-        }
-    }
     function isDeclarationNameOfEnumOrNamespace(node) {
         var parseNode = getParseTreeNode(node);
         if (parseNode) {
@@ -7906,6 +7796,14 @@ var ts;
         return isTypeNodeKind(node.kind);
     }
     ts.isTypeNode = isTypeNode;
+    function isArrayBindingPattern(node) {
+        return node.kind === 173;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isObjectBindingPattern(node) {
+        return node.kind === 172;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
     function isBindingPattern(node) {
         if (node) {
             var kind = node.kind;
@@ -7915,6 +7813,12 @@ var ts;
         return false;
     }
     ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 175
+            || kind === 176;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
     function isBindingElement(node) {
         return node.kind === 174;
     }
@@ -7925,6 +7829,39 @@ var ts;
             || kind === 198;
     }
     ts.isArrayBindingElement = isArrayBindingElement;
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 223:
+            case 144:
+            case 174:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 172:
+            case 176:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
     function isArrayLiteralExpression(node) {
         return node.kind === 175;
     }
@@ -7991,7 +7928,8 @@ var ts;
             || kind === 98
             || kind === 100
             || kind === 96
-            || kind === 201;
+            || kind === 201
+            || kind === 297;
     }
     function isLeftHandSideExpression(node) {
         return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
@@ -8019,6 +7957,7 @@ var ts;
             || kind === 196
             || kind === 200
             || kind === 198
+            || kind === 297
             || isUnaryExpressionKind(kind);
     }
     function isExpression(node) {
@@ -8032,11 +7971,11 @@ var ts;
     }
     ts.isAssertionExpression = isAssertionExpression;
     function isPartiallyEmittedExpression(node) {
-        return node.kind === 293;
+        return node.kind === 294;
     }
     ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
     function isNotEmittedStatement(node) {
-        return node.kind === 292;
+        return node.kind === 293;
     }
     ts.isNotEmittedStatement = isNotEmittedStatement;
     function isNotEmittedOrPartiallyEmittedNode(node) {
@@ -8148,7 +8087,7 @@ var ts;
             || kind === 228
             || kind === 143
             || kind === 223
-            || kind === 284;
+            || kind === 285;
     }
     function isDeclarationStatementKind(kind) {
         return kind === 225
@@ -8183,9 +8122,9 @@ var ts;
             || kind === 205
             || kind === 210
             || kind === 217
-            || kind === 292
-            || kind === 295
-            || kind === 294;
+            || kind === 293
+            || kind === 296
+            || kind === 295;
     }
     function isDeclaration(node) {
         return isDeclarationKind(node.kind);
@@ -8473,6 +8412,53 @@ var ts;
         return flags;
     }
     ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, undefined, errors);
+        }
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.localizedDiagnosticMessages = JSON.parse(fileContents);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -8673,9 +8659,9 @@ var ts;
         return node;
     }
     ts.createParameter = createParameter;
-    function updateParameter(node, decorators, modifiers, name, type, initializer) {
-        if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
-            return updateNode(createParameter(decorators, modifiers, node.dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
+        if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
+            return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
         }
         return node;
     }
@@ -8808,9 +8794,9 @@ var ts;
         return node;
     }
     ts.createBindingElement = createBindingElement;
-    function updateBindingElement(node, propertyName, name, initializer) {
-        if (node.propertyName !== propertyName || node.name !== name || node.initializer !== initializer) {
-            return updateNode(createBindingElement(propertyName, node.dotDotDotToken, name, initializer, node), node);
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
+            return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
         }
         return node;
     }
@@ -8850,7 +8836,7 @@ var ts;
     function createPropertyAccess(expression, name, location, flags) {
         var node = createNode(177, location, flags);
         node.expression = parenthesizeForAccess(expression);
-        (node.emitNode || (node.emitNode = {})).flags |= 1048576;
+        (node.emitNode || (node.emitNode = {})).flags |= 65536;
         node.name = typeof name === "string" ? createIdentifier(name) : name;
         return node;
     }
@@ -9071,13 +9057,21 @@ var ts;
         return node;
     }
     ts.updateBinary = updateBinary;
-    function createConditional(condition, questionToken, whenTrue, colonToken, whenFalse, location) {
-        var node = createNode(193, location);
-        node.condition = condition;
-        node.questionToken = questionToken;
-        node.whenTrue = whenTrue;
-        node.colonToken = colonToken;
-        node.whenFalse = whenFalse;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
+        var node = createNode(193, whenFalse ? location : colonTokenOrLocation);
+        node.condition = parenthesizeForConditionalHead(condition);
+        if (whenFalse) {
+            node.questionToken = questionTokenOrWhenTrue;
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+            node.colonToken = colonTokenOrLocation;
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
+        }
+        else {
+            node.questionToken = createToken(54);
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
+            node.colonToken = createToken(55);
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+        }
         return node;
     }
     ts.createConditional = createConditional;
@@ -9887,35 +9881,33 @@ var ts;
                 updated.imports = node.imports;
             if (node.moduleAugmentations !== undefined)
                 updated.moduleAugmentations = node.moduleAugmentations;
-            if (node.externalHelpersModuleName !== undefined)
-                updated.externalHelpersModuleName = node.externalHelpersModuleName;
             return updateNode(updated, node);
         }
         return node;
     }
     ts.updateSourceFileNode = updateSourceFileNode;
     function createNotEmittedStatement(original) {
-        var node = createNode(292, original);
+        var node = createNode(293, original);
         node.original = original;
         return node;
     }
     ts.createNotEmittedStatement = createNotEmittedStatement;
     function createEndOfDeclarationMarker(original) {
-        var node = createNode(295);
+        var node = createNode(296);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createEndOfDeclarationMarker = createEndOfDeclarationMarker;
     function createMergeDeclarationMarker(original) {
-        var node = createNode(294);
+        var node = createNode(295);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createMergeDeclarationMarker = createMergeDeclarationMarker;
     function createPartiallyEmittedExpression(expression, original, location) {
-        var node = createNode(293, location || original);
+        var node = createNode(294, location || original);
         node.expression = expression;
         node.original = original;
         return node;
@@ -9928,6 +9920,12 @@ var ts;
         return node;
     }
     ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    function createRawExpression(text) {
+        var node = createNode(297);
+        node.text = text;
+        return node;
+    }
+    ts.createRawExpression = createRawExpression;
     function createComma(left, right) {
         return createBinary(left, 25, right);
     }
@@ -9976,13 +9974,19 @@ var ts;
         return createVoid(createLiteral(0));
     }
     ts.createVoidZero = createVoidZero;
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? createStrictEquality(value, createVoidZero())
+            : createStrictEquality(createTypeOf(value), createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
     function createMemberAccessForPropertyName(target, memberName, location) {
         if (ts.isComputedPropertyName(memberName)) {
             return createElementAccess(target, memberName.expression, location);
         }
         else {
             var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
-            (expression.emitNode || (expression.emitNode = {})).flags |= 2048;
+            (expression.emitNode || (expression.emitNode = {})).flags |= 64;
             return expression;
         }
     }
@@ -10024,7 +10028,10 @@ var ts;
     }
     function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
         if (ts.isQualifiedName(jsxFactory)) {
-            return createPropertyAccess(createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent), setEmitFlags(getMutableClone(jsxFactory.right), 1536));
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = createSynthesizedNode(70);
+            right.text = jsxFactory.right.text;
+            return createPropertyAccess(left, right);
         }
         else {
             return createReactNamespace(jsxFactory.text, parent);
@@ -10078,114 +10085,10 @@ var ts;
         return createVariableDeclarationList(declarations, location, 2);
     }
     ts.createConstDeclarationList = createConstDeclarationList;
-    function createHelperName(externalHelpersModuleName, name) {
-        return externalHelpersModuleName
-            ? createPropertyAccess(externalHelpersModuleName, name)
-            : createIdentifier(name);
-    }
-    ts.createHelperName = createHelperName;
-    function createExtendsHelper(externalHelpersModuleName, name) {
-        return createCall(createHelperName(externalHelpersModuleName, "__extends"), undefined, [
-            name,
-            createIdentifier("_super")
-        ]);
+    function getHelperName(name) {
+        return setEmitFlags(createIdentifier(name), 4096 | 2);
     }
-    ts.createExtendsHelper = createExtendsHelper;
-    function createAssignHelper(externalHelpersModuleName, attributesSegments) {
-        return createCall(createHelperName(externalHelpersModuleName, "__assign"), undefined, attributesSegments);
-    }
-    ts.createAssignHelper = createAssignHelper;
-    function createParamHelper(externalHelpersModuleName, expression, parameterOffset, location) {
-        return createCall(createHelperName(externalHelpersModuleName, "__param"), undefined, [
-            createLiteral(parameterOffset),
-            expression
-        ], location);
-    }
-    ts.createParamHelper = createParamHelper;
-    function createMetadataHelper(externalHelpersModuleName, metadataKey, metadataValue) {
-        return createCall(createHelperName(externalHelpersModuleName, "__metadata"), undefined, [
-            createLiteral(metadataKey),
-            metadataValue
-        ]);
-    }
-    ts.createMetadataHelper = createMetadataHelper;
-    function createDecorateHelper(externalHelpersModuleName, decoratorExpressions, target, memberName, descriptor, location) {
-        var argumentsArray = [];
-        argumentsArray.push(createArrayLiteral(decoratorExpressions, undefined, true));
-        argumentsArray.push(target);
-        if (memberName) {
-            argumentsArray.push(memberName);
-            if (descriptor) {
-                argumentsArray.push(descriptor);
-            }
-        }
-        return createCall(createHelperName(externalHelpersModuleName, "__decorate"), undefined, argumentsArray, location);
-    }
-    ts.createDecorateHelper = createDecorateHelper;
-    function createAwaiterHelper(externalHelpersModuleName, hasLexicalArguments, promiseConstructor, body) {
-        var generatorFunc = createFunctionExpression(undefined, createToken(38), undefined, undefined, [], undefined, body);
-        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 2097152;
-        return createCall(createHelperName(externalHelpersModuleName, "__awaiter"), undefined, [
-            createThis(),
-            hasLexicalArguments ? createIdentifier("arguments") : createVoidZero(),
-            promiseConstructor ? createExpressionFromEntityName(promiseConstructor) : createVoidZero(),
-            generatorFunc
-        ]);
-    }
-    ts.createAwaiterHelper = createAwaiterHelper;
-    function createHasOwnProperty(target, propertyName) {
-        return createCall(createPropertyAccess(target, "hasOwnProperty"), undefined, [propertyName]);
-    }
-    ts.createHasOwnProperty = createHasOwnProperty;
-    function createObjectCreate(prototype) {
-        return createCall(createPropertyAccess(createIdentifier("Object"), "create"), undefined, [prototype]);
-    }
-    function createGeti(target) {
-        return createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createElementAccess(target, createIdentifier("name")));
-    }
-    function createSeti(target) {
-        return createArrowFunction(undefined, undefined, [
-            createParameter(undefined, undefined, undefined, "name"),
-            createParameter(undefined, undefined, undefined, "value")
-        ], undefined, createToken(35), createAssignment(createElementAccess(target, createIdentifier("name")), createIdentifier("value")));
-    }
-    function createAdvancedAsyncSuperHelper() {
-        var createCache = createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("cache", undefined, createObjectCreate(createNull()))
-        ]));
-        var getter = createGetAccessor(undefined, undefined, "value", [], undefined, createBlock([
-            createReturn(createCall(createIdentifier("geti"), undefined, [createIdentifier("name")]))
-        ]));
-        var setter = createSetAccessor(undefined, undefined, "value", [createParameter(undefined, undefined, undefined, "v")], createBlock([
-            createStatement(createCall(createIdentifier("seti"), undefined, [
-                createIdentifier("name"),
-                createIdentifier("v")
-            ]))
-        ]));
-        var getOrCreateAccessorsForName = createReturn(createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createLogicalOr(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createParen(createAssignment(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createObjectLiteral([
-            getter,
-            setter
-        ]))))));
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createCall(createParen(createFunctionExpression(undefined, undefined, undefined, undefined, [
-                createParameter(undefined, undefined, undefined, "geti"),
-                createParameter(undefined, undefined, undefined, "seti")
-            ], undefined, createBlock([
-                createCache,
-                getOrCreateAccessorsForName
-            ]))), undefined, [
-                createGeti(createSuper()),
-                createSeti(createSuper())
-            ]))
-        ]));
-    }
-    ts.createAdvancedAsyncSuperHelper = createAdvancedAsyncSuperHelper;
-    function createSimpleAsyncSuperHelper() {
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createGeti(createSuper()))
-        ]));
-    }
-    ts.createSimpleAsyncSuperHelper = createSimpleAsyncSuperHelper;
+    ts.getHelperName = getHelperName;
     function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
         var target = skipParentheses(node);
         switch (target.kind) {
@@ -10331,19 +10234,19 @@ var ts;
         return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, method.name, method.name), setOriginalNode(createFunctionExpression(method.modifiers, method.asteriskToken, undefined, undefined, method.parameters, undefined, method.body, method), method), method), method));
     }
     function getLocalName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 262144);
+        return getName(node, allowComments, allowSourceMaps, 16384);
     }
     ts.getLocalName = getLocalName;
     function isLocalName(node) {
-        return (getEmitFlags(node) & 262144) !== 0;
+        return (getEmitFlags(node) & 16384) !== 0;
     }
     ts.isLocalName = isLocalName;
     function getExportName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 131072);
+        return getName(node, allowComments, allowSourceMaps, 8192);
     }
     ts.getExportName = getExportName;
     function isExportName(node) {
-        return (getEmitFlags(node) & 131072) !== 0;
+        return (getEmitFlags(node) & 8192) !== 0;
     }
     ts.isExportName = isExportName;
     function getDeclarationName(node, allowComments, allowSourceMaps) {
@@ -10352,15 +10255,15 @@ var ts;
     ts.getDeclarationName = getDeclarationName;
     function getName(node, allowComments, allowSourceMaps, emitFlags) {
         if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
-            var name_11 = getMutableClone(node.name);
+            var name_8 = getMutableClone(node.name);
             emitFlags |= getEmitFlags(node.name);
             if (!allowSourceMaps)
-                emitFlags |= 1536;
+                emitFlags |= 48;
             if (!allowComments)
-                emitFlags |= 49152;
+                emitFlags |= 1536;
             if (emitFlags)
-                setEmitFlags(name_11, emitFlags);
-            return name_11;
+                setEmitFlags(name_8, emitFlags);
+            return name_8;
         }
         return getGeneratedNameForNode(node);
     }
@@ -10375,14 +10278,18 @@ var ts;
         var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), name);
         var emitFlags;
         if (!allowSourceMaps)
-            emitFlags |= 1536;
+            emitFlags |= 48;
         if (!allowComments)
-            emitFlags |= 49152;
+            emitFlags |= 1536;
         if (emitFlags)
             setEmitFlags(qualifiedName, emitFlags);
         return qualifiedName;
     }
     ts.getNamespaceMemberName = getNamespaceMemberName;
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : createBlock([createReturn(node, node)], node, multiLine);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
     function isUseStrictPrologue(node) {
         return node.expression.text === "use strict";
     }
@@ -10409,7 +10316,7 @@ var ts;
         }
         while (statementOffset < numStatements) {
             var statement = source[statementOffset];
-            if (getEmitFlags(statement) & 8388608) {
+            if (getEmitFlags(statement) & 524288) {
                 target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
             }
             else {
@@ -10420,10 +10327,17 @@ var ts;
         return statementOffset;
     }
     ts.addPrologueDirectives = addPrologueDirectives;
-    function ensureUseStrict(node) {
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
+    function ensureUseStrict(statements) {
         var foundUseStrict = false;
-        for (var _i = 0, _a = node.statements; _i < _a.length; _i++) {
-            var statement = _a[_i];
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
             if (ts.isPrologueDirective(statement)) {
                 if (isUseStrictPrologue(statement)) {
                     foundUseStrict = true;
@@ -10435,11 +10349,11 @@ var ts;
             }
         }
         if (!foundUseStrict) {
-            var statements = [];
-            statements.push(startOnNewLine(createStatement(createLiteral("use strict"))));
-            return updateSourceFileNode(node, statements.concat(node.statements));
+            return createNodeArray([
+                startOnNewLine(createStatement(createLiteral("use strict")))
+            ].concat(statements), statements);
         }
-        return node;
+        return statements;
     }
     ts.ensureUseStrict = ensureUseStrict;
     function parenthesizeBinaryOperand(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
@@ -10514,6 +10428,21 @@ var ts;
         }
         return 0;
     }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(193, 54);
+        var emittedCondition = skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1) {
+            return createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        return e.kind === 192 && e.operatorToken.kind === 25
+            ? createParen(e)
+            : e;
+    }
     function parenthesizeForNew(expression) {
         var emittedExpression = skipPartiallyEmittedExpressions(expression);
         switch (emittedExpression.kind) {
@@ -10619,7 +10548,7 @@ var ts;
                 case 177:
                     node = node.expression;
                     continue;
-                case 293:
+                case 294:
                     node = node.expression;
                     continue;
             }
@@ -10667,7 +10596,7 @@ var ts;
     }
     ts.skipAssertions = skipAssertions;
     function skipPartiallyEmittedExpressions(node) {
-        while (node.kind === 293) {
+        while (node.kind === 294) {
             node = node.expression;
         }
         return node;
@@ -10689,8 +10618,8 @@ var ts;
     }
     ts.setOriginalNode = setOriginalNode;
     function mergeEmitNode(sourceEmitNode, destEmitNode) {
-        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges;
-        if (!destEmitNode && (flags || commentRange || sourceMapRange || tokenSourceMapRanges))
+        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
+        if (!destEmitNode)
             destEmitNode = {};
         if (flags)
             destEmitNode.flags = flags;
@@ -10700,6 +10629,10 @@ var ts;
             destEmitNode.sourceMapRange = sourceMapRange;
         if (tokenSourceMapRanges)
             destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
         return destEmitNode;
     }
     function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
@@ -10733,6 +10666,7 @@ var ts;
         }
         return node.emitNode;
     }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
     function getEmitFlags(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.flags;
@@ -10743,11 +10677,22 @@ var ts;
         return node;
     }
     ts.setEmitFlags = setEmitFlags;
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
     function setSourceMapRange(node, range) {
         getOrCreateEmitNode(node).sourceMapRange = range;
         return node;
     }
     ts.setSourceMapRange = setSourceMapRange;
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
     function setTokenSourceMapRange(node, token, range) {
         var emitNode = getOrCreateEmitNode(node);
         var tokenSourceMapRanges = emitNode.tokenSourceMapRanges || (emitNode.tokenSourceMapRanges = ts.createMap());
@@ -10755,27 +10700,16 @@ var ts;
         return node;
     }
     ts.setTokenSourceMapRange = setTokenSourceMapRange;
-    function setCommentRange(node, range) {
-        getOrCreateEmitNode(node).commentRange = range;
-        return node;
-    }
-    ts.setCommentRange = setCommentRange;
     function getCommentRange(node) {
         var emitNode = node.emitNode;
         return (emitNode && emitNode.commentRange) || node;
     }
     ts.getCommentRange = getCommentRange;
-    function getSourceMapRange(node) {
-        var emitNode = node.emitNode;
-        return (emitNode && emitNode.sourceMapRange) || node;
-    }
-    ts.getSourceMapRange = getSourceMapRange;
-    function getTokenSourceMapRange(node, token) {
-        var emitNode = node.emitNode;
-        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
-        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
     }
-    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    ts.setCommentRange = setCommentRange;
     function getConstantValue(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.constantValue;
@@ -10787,6 +10721,103 @@ var ts;
         return node;
     }
     ts.setConstantValue = setConstantValue;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
+        if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var helpers = getEmitHelpers(node);
+            if (helpers) {
+                for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                    var helper = helpers_1[_i];
+                    if (!helper.scoped) {
+                        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                        var emitNode = getOrCreateEmitNode(parseNode);
+                        return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
+                    }
+                }
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                var helper = helpers_2[_i];
+                if (!ts.contains(emitNode.helpers, helper)) {
+                    emitNode.helpers = ts.append(emitNode.helpers, helper);
+                }
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                if (!ts.contains(targetEmitNode.helpers, helper)) {
+                    targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
+                }
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0;
+        if (x.priority === y.priority)
+            return 0;
+        if (x.priority === undefined)
+            return 1;
+        if (y.priority === undefined)
+            return -1;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
     function setTextRange(node, location) {
         if (location) {
             node.pos = location.pos;
@@ -10813,8 +10844,8 @@ var ts;
     function getLocalNameForExternalImport(node, sourceFile) {
         var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
         if (namespaceDeclaration && !ts.isDefaultImport(node)) {
-            var name_12 = namespaceDeclaration.name;
-            return ts.isGeneratedIdentifier(name_12) ? name_12 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
+            var name_9 = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name_9) ? name_9 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
         }
         if (node.kind === 235 && node.importClause) {
             return getGeneratedNameForNode(node);
@@ -10857,221 +10888,291 @@ var ts;
     function tryGetModuleNameFromDeclaration(declaration, host, resolver, compilerOptions) {
         return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
     }
-    function transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis, convertObjectRest) {
-        var multiLine = false;
-        var singleLine = false;
-        var statementsLocation;
-        var closeBraceLocation;
-        var statements = [];
-        var body = node.body;
-        var statementOffset;
-        context.startLexicalEnvironment();
-        if (ts.isBlock(body)) {
-            statementOffset = addPrologueDirectives(statements, body.statements, false, visitor);
-        }
-        addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-        addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest);
-        addRestParameterIfNeeded(statements, node, false);
-        if (!multiLine && statements.length > 0) {
-            multiLine = true;
-        }
-        if (ts.isBlock(body)) {
-            statementsLocation = body.statements;
-            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
-            if (!multiLine && body.multiLine) {
-                multiLine = true;
-            }
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.initializer;
         }
-        else {
-            ts.Debug.assert(node.kind === 185);
-            statementsLocation = ts.moveRangeEnd(body, -1);
-            var equalsGreaterThanToken = node.equalsGreaterThanToken;
-            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
-                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
-                    singleLine = true;
-                }
-                else {
-                    multiLine = true;
-                }
-            }
-            var expression = ts.visitNode(body, visitor, ts.isExpression);
-            var returnStatement = createReturn(expression, body);
-            setEmitFlags(returnStatement, 12288 | 1024 | 32768);
-            statements.push(returnStatement);
-            closeBraceLocation = body;
+        if (ts.isPropertyAssignment(bindingElement)) {
+            return ts.isAssignmentExpression(bindingElement.initializer, true)
+                ? bindingElement.initializer.right
+                : undefined;
         }
-        var lexicalEnvironment = context.endLexicalEnvironment();
-        ts.addRange(statements, lexicalEnvironment);
-        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
-            multiLine = true;
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            return bindingElement.objectAssignmentInitializer;
         }
-        var block = createBlock(createNodeArray(statements, statementsLocation), node.body, multiLine);
-        if (!multiLine && singleLine) {
-            setEmitFlags(block, 32);
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return bindingElement.right;
         }
-        if (closeBraceLocation) {
-            setTokenSourceMapRange(block, 17, closeBraceLocation);
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
         }
-        setOriginalNode(block, node.body);
-        return block;
     }
-    ts.transformFunctionBody = transformFunctionBody;
-    function addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis) {
-        if (node.transformFlags & 524288 && node.kind !== 185) {
-            captureThisForNode(statements, node, createThis(), enableSubstitutionsForCapturedThis);
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.name;
         }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 257:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 258:
+                    return bindingElement.name;
+                case 259:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            return undefined;
+        }
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        return bindingElement;
     }
-    ts.addCaptureThisForNodeIfNeeded = addCaptureThisForNodeIfNeeded;
-    function captureThisForNode(statements, node, initializer, enableSubstitutionsForCapturedThis, originalStatement) {
-        enableSubstitutionsForCapturedThis();
-        var captureThisStatement = createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration("_this", undefined, initializer)
-        ]), originalStatement);
-        setEmitFlags(captureThisStatement, 49152 | 8388608);
-        setSourceMapRange(captureThisStatement, node);
-        statements.push(captureThisStatement);
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 144:
+            case 174:
+                return bindingElement.dotDotDotToken;
+            case 196:
+            case 259:
+                return bindingElement;
+        }
+        return undefined;
     }
-    ts.captureThisForNode = captureThisForNode;
-    function shouldAddDefaultValueAssignments(node) {
-        return (node.transformFlags & 2097152) !== 0;
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 174:
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 257:
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 259:
+                return bindingElement.name;
+        }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
+                ? target.expression
+                : target;
+        }
+        ts.Debug.fail("Invalid property name for binding element.");
     }
-    function addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest) {
-        if (!shouldAddDefaultValueAssignments(node)) {
-            return;
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 172:
+            case 173:
+            case 175:
+                return name.elements;
+            case 176:
+                return name.properties;
         }
-        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
-            var parameter = _a[_i];
-            var name_13 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
-            if (dotDotDotToken) {
-                continue;
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpread(element.name, element), element);
             }
-            if (ts.isBindingPattern(name_13)) {
-                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_13, initializer, visitor, convertObjectRest);
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
+        }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
+    }
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpreadAssignment(element.name, element), element);
             }
-            else if (initializer) {
-                addDefaultValueAssignmentForInitializer(statements, parameter, name_13, initializer, visitor);
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
             }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
         }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
     }
-    ts.addDefaultValueAssignmentsIfNeeded = addDefaultValueAssignmentsIfNeeded;
-    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer, visitor, convertObjectRest) {
-        var temp = getGeneratedNameForNode(parameter);
-        if (name.elements.length > 0) {
-            statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList(ts.flattenParameterDestructuring(parameter, temp, visitor, convertObjectRest))), 8388608));
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return convertToArrayAssignmentPattern(node);
+            case 172:
+            case 176:
+                return convertToObjectAssignmentPattern(node);
         }
-        else if (initializer) {
-            statements.push(setEmitFlags(createStatement(createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 8388608));
+    }
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
         }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
     }
-    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer, visitor) {
-        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
-        var statement = createIf(createStrictEquality(getSynthesizedClone(name), createVoidZero()), setEmitFlags(createBlock([
-            createStatement(createAssignment(setEmitFlags(getMutableClone(name), 1536), setEmitFlags(initializer, 1536 | getEmitFlags(initializer)), parameter))
-        ], parameter), 32 | 1024 | 12288), undefined, parameter);
-        statement.startsOnNewLine = true;
-        setEmitFlags(statement, 12288 | 1024 | 8388608);
-        statements.push(statement);
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
+        }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
     }
-    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
-        return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
+        }
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
     }
-    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
-        var parameter = ts.lastOrUndefined(node.parameters);
-        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
-            return;
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMap();
+        var exportedBindings = ts.createMap();
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals = undefined;
+        var hasExportStarsToExportValues = false;
+        var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
+        var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(undefined, undefined, createImportClause(undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
+        if (externalHelpersImportDeclaration) {
+            externalImports.push(externalHelpersImportDeclaration);
         }
-        var declarationName = getMutableClone(parameter.name);
-        setEmitFlags(declarationName, 1536);
-        var expressionName = getSynthesizedClone(parameter.name);
-        var restIndex = node.parameters.length - 1;
-        var temp = createLoopVariable();
-        statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration(declarationName, undefined, createArrayLiteral([]))
-        ]), parameter), 8388608));
-        var forStatement = createFor(createVariableDeclarationList([
-            createVariableDeclaration(temp, undefined, createLiteral(restIndex))
-        ], parameter), createLessThan(temp, createPropertyAccess(createIdentifier("arguments"), "length"), parameter), createPostfixIncrement(temp, parameter), createBlock([
-            startOnNewLine(createStatement(createAssignment(createElementAccess(expressionName, createSubtract(temp, createLiteral(restIndex))), createElementAccess(createIdentifier("arguments"), temp)), parameter))
-        ]));
-        setEmitFlags(forStatement, 8388608);
-        startOnNewLine(forStatement);
-        statements.push(forStatement);
-    }
-    ts.addRestParameterIfNeeded = addRestParameterIfNeeded;
-    function convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, convertObjectRest) {
-        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
-        var initializer = node.initializer;
-        var statements = [];
-        var counter = convertObjectRest ? undefined : createLoopVariable();
-        var rhsReference = expression.kind === 70
-            ? createUniqueName(expression.text)
-            : createTempVariable(undefined);
-        var elementAccess = convertObjectRest ? rhsReference : createElementAccess(rhsReference, counter);
-        if (ts.isVariableDeclarationList(initializer)) {
-            if (initializer.flags & 3) {
-                enableSubstitutionsForBlockScopedBindings();
-            }
-            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
-            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
-                var declarations = ts.flattenVariableDestructuring(firstOriginalDeclaration, elementAccess, visitor, undefined, convertObjectRest);
-                var declarationList = createVariableDeclarationList(declarations, initializer);
-                setOriginalNode(declarationList, initializer);
-                var firstDeclaration = declarations[0];
-                var lastDeclaration = ts.lastOrUndefined(declarations);
-                setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
-                statements.push(createVariableStatement(undefined, declarationList));
-            }
-            else {
-                statements.push(createVariableStatement(undefined, setOriginalNode(createVariableDeclarationList([
-                    createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : createTempVariable(undefined), undefined, createElementAccess(rhsReference, counter))
-                ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 235:
+                    externalImports.push(node);
+                    break;
+                case 234:
+                    if (node.moduleReference.kind === 245) {
+                        externalImports.push(node);
+                    }
+                    break;
+                case 241:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports[specifier.name.text]) {
+                                var name_10 = specifier.propertyName || specifier.name;
+                                ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name_10)
+                                    || resolver.getReferencedValueDeclaration(name_10);
+                                if (decl) {
+                                    ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports[specifier.name.text] = true;
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 240:
+                    if (node.isExportEquals && !exportEquals) {
+                        exportEquals = node;
+                    }
+                    break;
+                case 205:
+                    if (ts.hasModifier(node, 1)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 225:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_11 = node.name;
+                            if (!uniqueExports[name_11.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_11);
+                                uniqueExports[name_11.text] = true;
+                                exportedNames = ts.append(exportedNames, name_11);
+                            }
+                        }
+                    }
+                    break;
+                case 226:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_12 = node.name;
+                            if (!uniqueExports[name_12.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_12);
+                                uniqueExports[name_12.text] = true;
+                                exportedNames = ts.append(exportedNames, name_12);
+                            }
+                        }
+                    }
+                    break;
             }
         }
-        else {
-            var assignment = createAssignment(initializer, elementAccess);
-            if (ts.isDestructuringAssignment(assignment)) {
-                statements.push(createStatement(ts.flattenDestructuringAssignment(context, assignment, false, context.hoistVariableDeclaration, visitor, convertObjectRest)));
-            }
-            else {
-                assignment.end = initializer.end;
-                statements.push(createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
             }
         }
-        var bodyLocation;
-        var statementsLocation;
-        if (convertedLoopBodyStatements) {
-            ts.addRange(statements, convertedLoopBodyStatements);
-        }
-        else {
-            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
-            if (ts.isBlock(statement)) {
-                ts.addRange(statements, statement.statements);
-                bodyLocation = statement;
-                statementsLocation = statement.statements;
-            }
-            else {
-                statements.push(statement);
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            if (!uniqueExports[decl.name.text]) {
+                uniqueExports[decl.name.text] = true;
+                exportedNames = ts.append(exportedNames, decl.name);
             }
         }
-        setEmitFlags(expression, 1536 | getEmitFlags(expression));
-        var body = createBlock(createNodeArray(statements, statementsLocation), bodyLocation);
-        setEmitFlags(body, 1536 | 12288);
-        var forStatement;
-        if (convertObjectRest) {
-            forStatement = createForOf(createVariableDeclarationList([
-                createVariableDeclaration(rhsReference, undefined, undefined, node.expression)
-            ], node.expression), node.expression, body, node);
-        }
-        else {
-            forStatement = createFor(setEmitFlags(createVariableDeclarationList([
-                createVariableDeclaration(counter, undefined, createLiteral(0), ts.moveRangePos(node.expression, -1)),
-                createVariableDeclaration(rhsReference, undefined, expression, node.expression)
-            ], node.expression), 16777216), createLessThan(counter, createPropertyAccess(rhsReference, "length"), node.expression), createPostfixIncrement(counter, node.expression), body, node);
-        }
-        setEmitFlags(forStatement, 8192);
-        return forStatement;
+        return exportedNames;
     }
-    ts.convertForOf = convertForOf;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -11469,29 +11570,31 @@ var ts;
                     visitNode(cbNode, node.type);
             case 278:
                 return visitNodes(cbNodes, node.tags);
-            case 280:
+            case 281:
                 return visitNode(cbNode, node.preParameterName) ||
                     visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.postParameterName);
-            case 281:
-                return visitNode(cbNode, node.typeExpression);
             case 282:
                 return visitNode(cbNode, node.typeExpression);
             case 283:
-                return visitNodes(cbNodes, node.typeParameters);
+                return visitNode(cbNode, node.typeExpression);
+            case 280:
+                return visitNode(cbNode, node.typeExpression);
             case 284:
+                return visitNodes(cbNodes, node.typeParameters);
+            case 285:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.fullName) ||
                     visitNode(cbNode, node.name) ||
                     visitNode(cbNode, node.jsDocTypeLiteral);
-            case 286:
+            case 287:
                 return visitNodes(cbNodes, node.jsDocPropertyTags);
-            case 285:
+            case 286:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.name);
-            case 293:
+            case 294:
                 return visitNode(cbNode, node.expression);
-            case 287:
+            case 288:
                 return visitNode(cbNode, node.literal);
         }
     }
@@ -11615,7 +11718,7 @@ var ts;
             return sourceFile;
         }
         function addJSDocComment(node) {
-            var comments = ts.getJsDocCommentsFromText(node, sourceFile.text);
+            var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                     var comment = comments_2[_i];
@@ -11623,10 +11726,10 @@ var ts;
                     if (!jsDoc) {
                         continue;
                     }
-                    if (!node.jsDocComments) {
-                        node.jsDocComments = [];
+                    if (!node.jsDoc) {
+                        node.jsDoc = [];
                     }
-                    node.jsDocComments.push(jsDoc);
+                    node.jsDoc.push(jsDoc);
                 }
             }
             return node;
@@ -11641,12 +11744,12 @@ var ts;
                     var saveParent = parent;
                     parent = n;
                     forEachChild(n, visitNode);
-                    if (n.jsDocComments) {
-                        for (var _i = 0, _a = n.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            jsDocComment.parent = n;
-                            parent = jsDocComment;
-                            forEachChild(jsDocComment, visitNode);
+                    if (n.jsDoc) {
+                        for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            jsDoc.parent = n;
+                            parent = jsDoc;
+                            forEachChild(jsDoc, visitNode);
                         }
                     }
                     parent = saveParent;
@@ -14823,8 +14926,8 @@ var ts;
                 return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
             }
             if (decorators || modifiers) {
-                var name_14 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
-                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_14, undefined);
+                var name_13 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_13, undefined);
             }
             ts.Debug.fail("Should not have attempted to parse class member declaration.");
         }
@@ -15471,7 +15574,7 @@ var ts;
                 return finishNode(result);
             }
             function parseJSDocLiteralType() {
-                var result = createNode(287);
+                var result = createNode(288);
                 result.literal = parseLiteralTypeNode();
                 return finishNode(result);
             }
@@ -15651,6 +15754,9 @@ var ts;
                     var tag;
                     if (tagName) {
                         switch (tagName.text) {
+                            case "augments":
+                                tag = parseAugmentsTag(atToken, tagName);
+                                break;
                             case "param":
                                 tag = parseParamTag(atToken, tagName);
                                 break;
@@ -15790,7 +15896,7 @@ var ts;
                     if (!typeExpression) {
                         typeExpression = tryParseTypeExpression();
                     }
-                    var result = createNode(280, atToken.pos);
+                    var result = createNode(281, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.preParameterName = preName;
@@ -15801,20 +15907,20 @@ var ts;
                     return finishNode(result);
                 }
                 function parseReturnTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 281; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(281, atToken.pos);
+                    var result = createNode(282, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
                     return finishNode(result);
                 }
                 function parseTypeTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(282, atToken.pos);
+                    var result = createNode(283, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
@@ -15829,17 +15935,25 @@ var ts;
                         parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                         return undefined;
                     }
-                    var result = createNode(285, atToken.pos);
+                    var result = createNode(286, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.name = name;
                     result.typeExpression = typeExpression;
                     return finishNode(result);
                 }
+                function parseAugmentsTag(atToken, tagName) {
+                    var typeExpression = tryParseTypeExpression();
+                    var result = createNode(280, atToken.pos);
+                    result.atToken = atToken;
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    return finishNode(result);
+                }
                 function parseTypedefTag(atToken, tagName) {
                     var typeExpression = tryParseTypeExpression();
                     skipWhitespace();
-                    var typedefTag = createNode(284, atToken.pos);
+                    var typedefTag = createNode(285, atToken.pos);
                     typedefTag.atToken = atToken;
                     typedefTag.tagName = tagName;
                     typedefTag.fullName = parseJSDocTypeNameWithNamespace(0);
@@ -15856,8 +15970,8 @@ var ts;
                         if (typeExpression.type.kind === 272) {
                             var jsDocTypeReference = typeExpression.type;
                             if (jsDocTypeReference.name.kind === 70) {
-                                var name_15 = jsDocTypeReference.name;
-                                if (name_15.text === "Object") {
+                                var name_14 = jsDocTypeReference.name;
+                                if (name_14.text === "Object") {
                                     typedefTag.jsDocTypeLiteral = scanChildTags();
                                 }
                             }
@@ -15871,7 +15985,7 @@ var ts;
                     }
                     return finishNode(typedefTag);
                     function scanChildTags() {
-                        var jsDocTypeLiteral = createNode(286, scanner.getStartPos());
+                        var jsDocTypeLiteral = createNode(287, scanner.getStartPos());
                         var resumePos = scanner.getStartPos();
                         var canParseTag = true;
                         var seenAsterisk = false;
@@ -15956,19 +16070,19 @@ var ts;
                     return false;
                 }
                 function parseTemplateTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 284; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
                     var typeParameters = createNodeArray();
                     while (true) {
-                        var name_16 = parseJSDocIdentifierName();
+                        var name_15 = parseJSDocIdentifierName();
                         skipWhitespace();
-                        if (!name_16) {
+                        if (!name_15) {
                             parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                             return undefined;
                         }
-                        var typeParameter = createNode(143, name_16.pos);
-                        typeParameter.name = name_16;
+                        var typeParameter = createNode(143, name_15.pos);
+                        typeParameter.name = name_15;
                         finishNode(typeParameter);
                         typeParameters.push(typeParameter);
                         if (token() === 25) {
@@ -15979,7 +16093,7 @@ var ts;
                             break;
                         }
                     }
-                    var result = createNode(283, atToken.pos);
+                    var result = createNode(284, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeParameters = typeParameters;
@@ -16059,8 +16173,8 @@ var ts;
                     ts.Debug.assert(text === newText.substring(node.pos, node.end));
                 }
                 forEachChild(node, visitNode, visitArray);
-                if (node.jsDocComments) {
-                    for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
+                if (node.jsDoc) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         forEachChild(jsDocComment, visitNode, visitArray);
                     }
@@ -16444,7 +16558,7 @@ var ts;
                 }
                 if (node.name.kind === 142) {
                     var nameExpression = node.name.expression;
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
@@ -16489,7 +16603,7 @@ var ts;
                     var functionType = node.parent;
                     var index = ts.indexOf(functionType.parameters, node);
                     return "arg" + index;
-                case 284:
+                case 285:
                     var parentNode = node.parent && node.parent.parent;
                     var nameFromParentNode = void 0;
                     if (parentNode && parentNode.kind === 205) {
@@ -16564,7 +16678,7 @@ var ts;
                 }
             }
             else {
-                var isJSDocTypedefInJSDocNamespace = node.kind === 284 &&
+                var isJSDocTypedefInJSDocNamespace = node.kind === 285 &&
                     node.name &&
                     node.name.kind === 70 &&
                     node.name.isInJSDocNamespace;
@@ -16669,12 +16783,35 @@ var ts;
                 subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
             }
         }
+        function bindEach(nodes) {
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0;
+                var nodeArrayFlags = 0;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bind(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
         function bindChildrenWorker(node) {
-            if (ts.isInJavaScriptFile(node) && node.jsDocComments) {
-                ts.forEach(node.jsDocComments, bind);
+            if (ts.isInJavaScriptFile(node) && node.jsDoc) {
+                ts.forEach(node.jsDoc, bind);
             }
             if (checkUnreachable(node)) {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 return;
             }
             switch (node.kind) {
@@ -16739,7 +16876,7 @@ var ts;
                     bindCallExpressionFlow(node);
                     break;
                 default:
-                    ts.forEachChild(node, bind);
+                    bindEachChild(node);
                     break;
             }
         }
@@ -17042,7 +17179,7 @@ var ts;
             }
             return undefined;
         }
-        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
             var flowLabel = node.kind === 215 ? breakTarget : continueTarget;
             if (flowLabel) {
                 addAntecedent(flowLabel, currentFlow);
@@ -17055,11 +17192,11 @@ var ts;
                 var activeLabel = findActiveLabel(node.label.text);
                 if (activeLabel) {
                     activeLabel.referenced = true;
-                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                 }
             }
             else {
-                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
             }
         }
         function bindTryStatement(node) {
@@ -17110,6 +17247,8 @@ var ts;
             currentFlow = finishFlowLabel(postSwitchLabel);
         }
         function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
             var clauses = node.clauses;
             var fallthroughFlow = unreachableFlow;
             for (var i = 0; i < clauses.length; i++) {
@@ -17129,13 +17268,15 @@ var ts;
                     errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                 }
             }
+            clauses.transformFlags = subtreeTransformFlags | 536870912;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
         }
         function bindCaseClause(node) {
             var saveCurrentFlow = currentFlow;
             currentFlow = preSwitchCaseFlow;
             bind(node.expression);
             currentFlow = saveCurrentFlow;
-            ts.forEach(node.statements, bind);
+            bindEach(node.statements);
         }
         function pushActiveLabel(name, breakTarget, continueTarget) {
             var activeLabel = {
@@ -17221,19 +17362,19 @@ var ts;
                 var saveTrueTarget = currentTrueTarget;
                 currentTrueTarget = currentFalseTarget;
                 currentFalseTarget = saveTrueTarget;
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 currentFalseTarget = currentTrueTarget;
                 currentTrueTarget = saveTrueTarget;
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (node.operator === 42 || node.operator === 43) {
                     bindAssignmentTargetFlow(node.operand);
                 }
             }
         }
         function bindPostfixUnaryExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.operator === 42 || node.operator === 43) {
                 bindAssignmentTargetFlow(node.operand);
             }
@@ -17251,7 +17392,7 @@ var ts;
                 }
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                     bindAssignmentTargetFlow(node.left);
                     if (operator === 57 && node.left.kind === 178) {
@@ -17264,7 +17405,7 @@ var ts;
             }
         }
         function bindDeleteExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.expression.kind === 177) {
                 bindAssignmentTargetFlow(node.expression);
             }
@@ -17297,7 +17438,7 @@ var ts;
             }
         }
         function bindVariableDeclarationFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.initializer || node.parent.parent.kind === 212 || node.parent.parent.kind === 213) {
                 bindInitializedVariableFlow(node);
             }
@@ -17308,12 +17449,12 @@ var ts;
                 expr = expr.expression;
             }
             if (expr.kind === 184 || expr.kind === 185) {
-                ts.forEach(node.typeArguments, bind);
-                ts.forEach(node.arguments, bind);
+                bindEach(node.typeArguments);
+                bindEach(node.arguments);
                 bind(node.expression);
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
             }
             if (node.expression.kind === 177) {
                 var propertyAccess = node.expression;
@@ -17329,7 +17470,7 @@ var ts;
                 case 229:
                 case 176:
                 case 161:
-                case 286:
+                case 287:
                 case 270:
                     return 1;
                 case 227:
@@ -17398,7 +17539,7 @@ var ts;
                 case 176:
                 case 227:
                 case 270:
-                case 286:
+                case 287:
                     return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
                 case 158:
                 case 159:
@@ -17692,8 +17833,8 @@ var ts;
         }
         function updateStrictModeStatementList(statements) {
             if (!inStrictMode) {
-                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
-                    var statement = statements_1[_i];
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
                     if (!ts.isPrologueDirective(statement)) {
                         return;
                     }
@@ -17713,7 +17854,7 @@ var ts;
                 case 70:
                     if (node.isInJSDocNamespace) {
                         var parentNode = node.parent;
-                        while (parentNode && parentNode.kind !== 284) {
+                        while (parentNode && parentNode.kind !== 285) {
                             parentNode = parentNode.parent;
                         }
                         bindBlockScopedDeclaration(parentNode, 524288, 793064);
@@ -17783,7 +17924,7 @@ var ts;
                 case 146:
                 case 271:
                     return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 536870912 : 0), 0);
-                case 285:
+                case 286:
                     return bindJSDocProperty(node);
                 case 257:
                 case 258:
@@ -17827,7 +17968,7 @@ var ts;
                     return bindFunctionOrConstructorType(node);
                 case 161:
                 case 170:
-                case 286:
+                case 287:
                 case 270:
                     return bindAnonymousDeclaration(node, 2048, "__type");
                 case 176:
@@ -17846,7 +17987,7 @@ var ts;
                     return bindClassLikeDeclaration(node);
                 case 227:
                     return bindBlockScopedDeclaration(node, 64, 792968);
-                case 284:
+                case 285:
                     if (!node.fullName || node.fullName.kind === 70) {
                         return bindBlockScopedDeclaration(node, 524288, 793064);
                     }
@@ -17920,12 +18061,12 @@ var ts;
                 return;
             }
             else {
-                var parent_5 = node.parent;
-                if (!ts.isExternalModule(parent_5)) {
+                var parent_4 = node.parent;
+                if (!ts.isExternalModule(parent_4)) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                     return;
                 }
-                if (!parent_5.isDeclarationFile) {
+                if (!parent_4.isDeclarationFile) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                     return;
                 }
@@ -18211,12 +18352,12 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608
+        if (subtreeFlags & 524288
             || isSuperOrSuperProperty(expression, expressionKind)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function isSuperOrSuperProperty(node, kind) {
         switch (kind) {
@@ -18235,28 +18376,28 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 524288) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function computeBinaryExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var operatorTokenKind = node.operatorToken.kind;
         var leftKind = node.left.kind;
         if (operatorTokenKind === 57 && leftKind === 176) {
-            transformFlags |= 48 | 3072 | 49152;
+            transformFlags |= 8 | 192 | 3072;
         }
         else if (operatorTokenKind === 57 && leftKind === 175) {
-            transformFlags |= 3072 | 49152;
+            transformFlags |= 192 | 3072;
         }
         else if (operatorTokenKind === 39
             || operatorTokenKind === 61) {
-            transformFlags |= 768;
+            transformFlags |= 32;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeParameter(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18266,21 +18407,21 @@ var ts;
         var dotDotDotToken = node.dotDotDotToken;
         if (node.questionToken
             || node.type
-            || subtreeFlags & 65536
+            || subtreeFlags & 4096
             || ts.isThisIdentifier(name)) {
             transformFlags |= 3;
         }
         if (modifierFlags & 92) {
-            transformFlags |= 3 | 4194304;
+            transformFlags |= 3 | 262144;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 67108864 || initializer || dotDotDotToken) {
-            transformFlags |= 3072 | 2097152;
+        if (subtreeFlags & 8388608 || initializer || dotDotDotToken) {
+            transformFlags |= 192 | 131072;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~536872257;
     }
     function computeParenthesizedExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18291,11 +18432,11 @@ var ts;
             || expressionKind === 182) {
             transformFlags |= 3;
         }
-        if (expressionTransformFlags & 16384) {
-            transformFlags |= 16384;
+        if (expressionTransformFlags & 1024) {
+            transformFlags |= 1024;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeClassDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -18304,35 +18445,35 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 3072;
-            if ((subtreeFlags & 4390912)
+            transformFlags = subtreeFlags | 192;
+            if ((subtreeFlags & 274432)
                 || node.typeParameters) {
                 transformFlags |= 3;
             }
-            if (subtreeFlags & 1048576) {
-                transformFlags |= 262144;
+            if (subtreeFlags & 65536) {
+                transformFlags |= 16384;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeClassExpression(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
-        if (subtreeFlags & 4390912
+        var transformFlags = subtreeFlags | 192;
+        if (subtreeFlags & 274432
             || node.typeParameters) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 1048576) {
-            transformFlags |= 262144;
+        if (subtreeFlags & 65536) {
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeHeritageClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         switch (node.token) {
             case 84:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 107:
                 transformFlags |= 3;
@@ -18342,23 +18483,23 @@ var ts;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeCatchClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~537920833;
     }
     function computeExpressionWithTypeArguments(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeConstructor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18366,11 +18507,14 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeMethod(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.decorators
             || ts.hasModifier(node, 2270)
             || node.typeParameters
@@ -18378,14 +18522,17 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeAccessor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18395,16 +18542,19 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computePropertyDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags | 3;
         if (node.initializer) {
-            transformFlags |= 131072;
+            transformFlags |= 8192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeFunctionDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -18414,27 +18564,27 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 268435456;
+            transformFlags = subtreeFlags | 33554432;
             if (modifierFlags & 2270
                 || node.typeParameters
                 || node.type) {
                 transformFlags |= 3;
             }
             if (modifierFlags & 256) {
-                transformFlags |= 192;
+                transformFlags |= 16;
             }
-            if (subtreeFlags & 8388608) {
-                transformFlags |= 48;
+            if (subtreeFlags & 1048576) {
+                transformFlags |= 8;
             }
-            if (subtreeFlags & 2621440) {
-                transformFlags |= 3072;
+            if (subtreeFlags & 163840) {
+                transformFlags |= 192;
             }
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                transformFlags |= 12288;
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                transformFlags |= 768;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeFunctionExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18444,63 +18594,60 @@ var ts;
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 2621440) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 163840) {
+            transformFlags |= 192;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeArrowFunction(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (ts.hasModifier(node, 2270)
             || node.typeParameters
             || node.type) {
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 262144) {
-            transformFlags |= 524288;
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~979719509;
+        return transformFlags & ~601249089;
     }
     function computePropertyAccess(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var expression = node.expression;
         var expressionKind = expression.kind;
         if (expressionKind === 96) {
-            transformFlags |= 262144;
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var nameKind = node.name.kind;
-        if (nameKind === 172) {
-            transformFlags |= 48 | 3072 | 67108864;
-        }
-        else if (nameKind === 173) {
-            transformFlags |= 3072 | 67108864;
+        transformFlags |= 192 | 8388608;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
         if (node.type) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableStatement(node, subtreeFlags) {
         var transformFlags;
@@ -18511,21 +18658,21 @@ var ts;
         }
         else {
             transformFlags = subtreeFlags;
-            if (declarationListTransformFlags & 67108864) {
-                transformFlags |= 3072;
+            if (declarationListTransformFlags & 8388608) {
+                transformFlags |= 192;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeLabeledStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (subtreeFlags & 33554432
+        if (subtreeFlags & 4194304
             && ts.isIterationStatement(node, true)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeImportEquals(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -18533,15 +18680,15 @@ var ts;
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeExpressionStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (node.expression.transformFlags & 16384) {
-            transformFlags |= 3072;
+        if (node.expression.transformFlags & 1024) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeModuleDeclaration(node, subtreeFlags) {
         var transformFlags = 3;
@@ -18550,26 +18697,26 @@ var ts;
             transformFlags |= subtreeFlags;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~839734613;
+        return transformFlags & ~574674241;
     }
     function computeVariableDeclarationList(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 268435456;
-        if (subtreeFlags & 67108864) {
-            transformFlags |= 3072;
+        var transformFlags = subtreeFlags | 33554432;
+        if (subtreeFlags & 8388608) {
+            transformFlags |= 192;
         }
         if (node.flags & 3) {
-            transformFlags |= 3072 | 33554432;
+            transformFlags |= 192 | 4194304;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~546309441;
     }
     function computeOther(node, kind, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var excludeFlags = 536892757;
+        var excludeFlags = 536872257;
         switch (kind) {
             case 119:
             case 189:
-                transformFlags |= 192;
+                transformFlags |= 16;
                 break;
             case 113:
             case 111:
@@ -18593,10 +18740,10 @@ var ts;
             case 250:
             case 251:
             case 252:
-                transformFlags |= 12;
+                transformFlags |= 4;
                 break;
             case 213:
-                transformFlags |= 48;
+                transformFlags |= 8;
             case 12:
             case 13:
             case 14:
@@ -18605,10 +18752,10 @@ var ts;
             case 181:
             case 258:
             case 114:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 195:
-                transformFlags |= 3072 | 134217728;
+                transformFlags |= 192 | 16777216;
                 break;
             case 118:
             case 132:
@@ -18645,73 +18792,79 @@ var ts;
                 excludeFlags = -3;
                 break;
             case 142:
-                transformFlags |= 16777216;
-                if (subtreeFlags & 262144) {
-                    transformFlags |= 1048576;
+                transformFlags |= 2097152;
+                if (subtreeFlags & 16384) {
+                    transformFlags |= 65536;
                 }
                 break;
             case 196:
+                transformFlags |= 192 | 524288;
+                break;
             case 259:
-                transformFlags |= 8388608;
+                transformFlags |= 8 | 1048576;
                 break;
-            case 174:
-                if (node.dotDotDotToken) {
-                    transformFlags |= 8388608;
-                }
             case 96:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 98:
-                transformFlags |= 262144;
+                transformFlags |= 16384;
                 break;
             case 172:
-            case 173:
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48 | 67108864;
+                transformFlags |= 192 | 8388608;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 8 | 1048576;
                 }
-                else {
-                    transformFlags |= 3072 | 67108864;
+                excludeFlags = 537396545;
+                break;
+            case 173:
+                transformFlags |= 192 | 8388608;
+                excludeFlags = 537396545;
+                break;
+            case 174:
+                transformFlags |= 192;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 524288;
                 }
                 break;
             case 145:
-                transformFlags |= 3 | 65536;
+                transformFlags |= 3 | 4096;
                 break;
             case 176:
-                excludeFlags = 554784085;
-                if (subtreeFlags & 16777216) {
-                    transformFlags |= 3072;
+                excludeFlags = 540087617;
+                if (subtreeFlags & 2097152) {
+                    transformFlags |= 192;
                 }
-                if (subtreeFlags & 1048576) {
-                    transformFlags |= 262144;
+                if (subtreeFlags & 65536) {
+                    transformFlags |= 16384;
                 }
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48;
+                if (subtreeFlags & 1048576) {
+                    transformFlags |= 8;
                 }
                 break;
             case 175:
             case 180:
-                excludeFlags = 545281365;
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 3072;
+                excludeFlags = 537396545;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 192;
                 }
                 break;
             case 209:
             case 210:
             case 211:
             case 212:
-                if (subtreeFlags & 33554432) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 4194304) {
+                    transformFlags |= 192;
                 }
                 break;
             case 261:
-                if (subtreeFlags & 524288) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 32768) {
+                    transformFlags |= 192;
                 }
                 break;
             case 216:
             case 214:
             case 215:
-                transformFlags |= 268435456;
+                transformFlags |= 33554432;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
@@ -18725,27 +18878,27 @@ var ts;
             case 179:
             case 180:
             case 175:
-                return 545281365;
+                return 537396545;
             case 230:
-                return 839734613;
+                return 574674241;
             case 144:
-                return 604001621;
+                return 536872257;
             case 185:
-                return 979719509;
+                return 601249089;
             case 184:
             case 225:
-                return 980243797;
+                return 601281857;
             case 224:
-                return 604001621;
+                return 546309441;
             case 226:
             case 197:
-                return 559895893;
+                return 539358529;
             case 150:
-                return 975983957;
+                return 601015617;
             case 149:
             case 151:
             case 152:
-                return 975983957;
+                return 601015617;
             case 118:
             case 132:
             case 129:
@@ -18763,9 +18916,14 @@ var ts;
             case 228:
                 return -3;
             case 176:
-                return 554784085;
+                return 540087617;
+            case 256:
+                return 537920833;
+            case 172:
+            case 173:
+                return 537396545;
             default:
-                return 536892757;
+                return 536872257;
         }
     }
     ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
@@ -18800,6 +18958,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -19438,6 +19597,7 @@ var ts;
             getJsxElementAttributesType: getJsxElementAttributesType,
             getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
             isOptionalParameter: isOptionalParameter,
+            tryGetMemberInModuleExports: tryGetMemberInModuleExports,
             tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
                 return tryFindAmbientModule(moduleName, false);
             }
@@ -19447,6 +19607,7 @@ var ts;
         var intersectionTypes = ts.createMap();
         var stringLiteralTypes = ts.createMap();
         var numericLiteralTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
         var evolvingArrayTypes = [];
         var unknownSymbol = createSymbol(4 | 67108864, "unknown");
         var resolvingSymbol = createSymbol(67108864, "__resolving__");
@@ -19466,7 +19627,6 @@ var ts;
         var voidType = createIntrinsicType(1024, "void");
         var neverType = createIntrinsicType(8192, "never");
         var silentNeverType = createIntrinsicType(8192, "never");
-        var stringOrNumberType = getUnionType([stringType, numberType]);
         var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
         var emptyTypeLiteralSymbol = createSymbol(2048 | 67108864, "__type");
         emptyTypeLiteralSymbol.members = ts.createMap();
@@ -20016,6 +20176,7 @@ var ts;
                     if (!errorLocation ||
                         !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                             !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                             !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                         error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                     }
@@ -20092,6 +20253,16 @@ var ts;
                     return undefined;
             }
         }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            if (meaning === 1920) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
+                    return true;
+                }
+            }
+            return false;
+        }
         function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
             if (meaning & (107455 & ~1024)) {
                 var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
@@ -20197,28 +20368,28 @@ var ts;
             var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
             var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
             if (targetSymbol) {
-                var name_17 = specifier.propertyName || specifier.name;
-                if (name_17.text) {
+                var name_16 = specifier.propertyName || specifier.name;
+                if (name_16.text) {
                     if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                         return moduleSymbol;
                     }
                     var symbolFromVariable = void 0;
                     if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
-                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_17.text);
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_16.text);
                     }
                     else {
-                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_17.text);
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_16.text);
                     }
                     symbolFromVariable = resolveSymbol(symbolFromVariable);
-                    var symbolFromModule = getExportOfModule(targetSymbol, name_17.text);
-                    if (!symbolFromModule && allowSyntheticDefaultImports && name_17.text === "default") {
+                    var symbolFromModule = getExportOfModule(targetSymbol, name_16.text);
+                    if (!symbolFromModule && allowSyntheticDefaultImports && name_16.text === "default") {
                         symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                     }
                     var symbol = symbolFromModule && symbolFromVariable ?
                         combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                         symbolFromModule || symbolFromVariable;
                     if (!symbol) {
-                        error(name_17, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_17));
+                        error(name_16, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_16));
                     }
                     return symbol;
                 }
@@ -20443,6 +20614,12 @@ var ts;
         function getExportsOfModuleAsArray(moduleSymbol) {
             return symbolsToArray(getExportsOfModule(moduleSymbol));
         }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable[memberName];
+            }
+        }
         function getExportsOfSymbol(symbol) {
             return symbol.flags & 1536 ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
         }
@@ -20958,9 +21135,9 @@ var ts;
                     var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2));
                     if (!accessibleSymbolChain ||
                         needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
-                        var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
-                        if (parent_6) {
-                            walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), false);
+                        var parent_5 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
+                        if (parent_5) {
+                            walkSymbol(parent_5, getQualifiedLeftMeaning(meaning), false);
                         }
                     }
                     if (accessibleSymbolChain) {
@@ -21093,12 +21270,12 @@ var ts;
                             var length_1 = outerTypeParameters.length;
                             while (i < length_1) {
                                 var start = i;
-                                var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                 do {
                                     i++;
-                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
+                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                 if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
-                                    writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
+                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                     writePunctuation(writer, 22);
                                 }
                             }
@@ -21522,12 +21699,12 @@ var ts;
                         if (ts.isExternalModuleAugmentation(node)) {
                             return true;
                         }
-                        var parent_8 = getDeclarationContainer(node);
+                        var parent_7 = getDeclarationContainer(node);
                         if (!(ts.getCombinedModifierFlags(node) & 1) &&
-                            !(node.kind !== 234 && parent_8.kind !== 261 && ts.isInAmbientContext(parent_8))) {
-                            return isGlobalSourceFile(parent_8);
+                            !(node.kind !== 234 && parent_7.kind !== 261 && ts.isInAmbientContext(parent_7))) {
+                            return isGlobalSourceFile(parent_7);
                         }
-                        return isDeclarationVisible(parent_8);
+                        return isDeclarationVisible(parent_7);
                     case 147:
                     case 146:
                     case 151:
@@ -21683,15 +21860,15 @@ var ts;
             return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, false);
         }
         function isComputedNonLiteralName(name) {
-            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression.kind);
+            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression);
         }
         function getRestType(source, properties, symbol) {
             ts.Debug.assert(!!(source.flags & 32768), "Rest types only support object types right now.");
             var members = ts.createMap();
             var names = ts.createMap();
             for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
-                var name_18 = properties_2[_i];
-                names[ts.getTextOfPropertyName(name_18)] = true;
+                var name_17 = properties_2[_i];
+                names[ts.getTextOfPropertyName(name_17)] = true;
             }
             for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
                 var prop = _b[_a];
@@ -21729,26 +21906,26 @@ var ts;
                     var literalMembers = [];
                     for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                         var element = _a[_i];
-                        if (element.kind !== 198 && !element.dotDotDotToken) {
+                        if (!element.dotDotDotToken) {
                             literalMembers.push(element.propertyName || element.name);
                         }
                     }
                     type = getRestType(parentType, literalMembers, declaration.symbol);
                 }
                 else {
-                    var name_19 = declaration.propertyName || declaration.name;
-                    if (isComputedNonLiteralName(name_19)) {
+                    var name_18 = declaration.propertyName || declaration.name;
+                    if (isComputedNonLiteralName(name_18)) {
                         return anyType;
                     }
                     if (declaration.initializer) {
                         getContextualType(declaration.initializer);
                     }
-                    var text = ts.getTextOfPropertyName(name_19);
+                    var text = ts.getTextOfPropertyName(name_18);
                     type = getTypeOfPropertyOfType(parentType, text) ||
                         isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1) ||
                         getIndexTypeOfType(parentType, 0);
                     if (!type) {
-                        error(name_19, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_19));
+                        error(name_18, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_18));
                         return unknownType;
                     }
                 }
@@ -21782,29 +21959,9 @@ var ts;
                 type;
         }
         function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
-            if (jsDocType) {
-                return getTypeFromTypeNode(jsDocType);
-            }
-        }
-        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var typeTag = ts.getJSDocTypeTag(declaration);
-            if (typeTag && typeTag.typeExpression) {
-                return typeTag.typeExpression.type;
-            }
-            if (declaration.kind === 223 &&
-                declaration.parent.kind === 224 &&
-                declaration.parent.parent.kind === 205) {
-                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
-                if (annotation && annotation.typeExpression) {
-                    return annotation.typeExpression.type;
-                }
-            }
-            else if (declaration.kind === 144) {
-                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
-                if (paramTag && paramTag.typeExpression) {
-                    return paramTag.typeExpression.type;
-                }
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
             }
             return undefined;
         }
@@ -21827,7 +21984,8 @@ var ts;
                 }
             }
             if (declaration.parent.parent.kind === 212) {
-                return stringType;
+                var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
+                return indexType.flags & (16384 | 262144) ? indexType : stringType;
             }
             if (declaration.parent.parent.kind === 213) {
                 return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
@@ -21838,7 +21996,8 @@ var ts;
             if (declaration.type) {
                 return addOptionality(getTypeFromTypeNode(declaration.type), declaration.questionToken && includeOptionality);
             }
-            if (declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
+            if ((compilerOptions.noImplicitAny || declaration.flags & 2097152) &&
+                declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
                 !(ts.getCombinedModifierFlags(declaration) & 1) && !ts.isInAmbientContext(declaration)) {
                 if (!(ts.getCombinedNodeFlags(declaration) & 2) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                     return autoType;
@@ -21977,7 +22136,7 @@ var ts;
                 if (declaration.kind === 240) {
                     return links.type = checkExpression(declaration.expression);
                 }
-                if (declaration.flags & 2097152 && declaration.kind === 285 && declaration.typeExpression) {
+                if (declaration.flags & 2097152 && declaration.kind === 286 && declaration.typeExpression) {
                     return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
                 }
                 if (!pushTypeResolution(symbol, 0)) {
@@ -21987,9 +22146,9 @@ var ts;
                 if (declaration.kind === 192 ||
                     declaration.kind === 177 && declaration.parent.kind === 192) {
                     if (declaration.flags & 2097152) {
-                        var typeTag = ts.getJSDocTypeTag(declaration.parent);
-                        if (typeTag && typeTag.typeExpression) {
-                            return links.type = getTypeFromTypeNode(typeTag.typeExpression.type);
+                        var jsdocType = ts.getJSDocType(declaration.parent);
+                        if (jsdocType) {
+                            return links.type = getTypeFromTypeNode(jsdocType);
                         }
                     }
                     var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 ?
@@ -22290,6 +22449,13 @@ var ts;
                 }
                 baseType = getReturnTypeOfSignature(constructors[0]);
             }
+            var valueDecl = type.symbol.valueDeclaration;
+            if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
+                var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
+                if (augTag) {
+                    baseType = getTypeFromTypeNode(augTag.typeExpression.type);
+                }
+            }
             if (baseType === unknownType) {
                 return;
             }
@@ -22298,7 +22464,7 @@ var ts;
                 return;
             }
             if (type === baseType || hasBaseType(baseType, type)) {
-                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
+                error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                 return;
             }
             if (type.resolvedBaseTypes === emptyArray) {
@@ -22400,7 +22566,7 @@ var ts;
                 if (!pushTypeResolution(symbol, 2)) {
                     return unknownType;
                 }
-                var declaration = ts.getDeclarationOfKind(symbol, 284);
+                var declaration = ts.getDeclarationOfKind(symbol, 285);
                 var type = void 0;
                 if (declaration) {
                     if (declaration.jsDocTypeLiteral) {
@@ -22887,6 +23053,7 @@ var ts;
             var members = ts.createMap();
             var stringIndexInfo;
             var numberIndexInfo;
+            setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
             var typeParameter = getTypeParameterFromMappedType(type);
             var constraintType = getConstraintTypeFromMappedType(type);
             var templateType = getTemplateTypeFromMappedType(type);
@@ -22931,6 +23098,9 @@ var ts;
                     instantiateType(getTypeFromTypeNode(type.declaration.type), type.mapper || identityMapper) :
                     unknownType);
         }
+        function getErasedTemplateTypeFromMappedType(type) {
+            return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
+        }
         function isGenericMappedType(type) {
             if (getObjectFlags(type) & 32) {
                 var constraintType = getConstraintTypeFromMappedType(type);
@@ -23018,14 +23188,18 @@ var ts;
             }
             return type.resolvedApparentType;
         }
+        function getApparentTypeOfIndexedAccess(type) {
+            return getIndexTypeOfType(getApparentType(type.objectType), 0) || type;
+        }
         function getApparentType(type) {
-            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) : type;
-            return t.flags & 34 ? globalStringType :
+            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) :
+                type.flags & 524288 ? getApparentTypeOfIndexedAccess(type) :
+                    type;
+            return t.flags & 262178 ? globalStringType :
                 t.flags & 340 ? globalNumberType :
                     t.flags & 136 ? globalBooleanType :
                         t.flags & 512 ? getGlobalESSymbolType() :
-                            t.flags & 262144 ? stringOrNumberType :
-                                t;
+                            t;
         }
         function createUnionOrIntersectionProperty(containingType, name) {
             var types = containingType.types;
@@ -23198,13 +23372,16 @@ var ts;
                 if (node.type && node.type.kind === 273) {
                     return true;
                 }
-                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
-                if (paramTag) {
-                    if (paramTag.isBracketed) {
-                        return true;
-                    }
-                    if (paramTag.typeExpression) {
-                        return paramTag.typeExpression.type.kind === 273;
+                var paramTags = ts.getJSDocParameterTags(node);
+                if (paramTags) {
+                    for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
+                        var paramTag = paramTags_1[_i];
+                        if (paramTag.isBracketed) {
+                            return true;
+                        }
+                        if (paramTag.typeExpression) {
+                            return paramTag.typeExpression.type.kind === 273;
+                        }
                     }
                 }
             }
@@ -24039,10 +24216,14 @@ var ts;
         }
         function getIndexType(type) {
             return type.flags & 16384 ? getIndexTypeForTypeParameter(type) :
-                type.flags & 1 || getIndexInfoOfType(type, 0) ? stringOrNumberType :
-                    getIndexInfoOfType(type, 1) ? getUnionType([numberType, getLiteralTypeFromPropertyNames(type)]) :
+                getObjectFlags(type) & 32 ? getConstraintTypeFromMappedType(type) :
+                    type.flags & 1 || getIndexInfoOfType(type, 0) ? stringType :
                         getLiteralTypeFromPropertyNames(type);
         }
+        function getIndexTypeOrString(type) {
+            var indexType = getIndexType(type);
+            return indexType !== neverType ? indexType : stringType;
+        }
         function getTypeFromTypeOperatorNode(node) {
             var links = getNodeLinks(node);
             if (!links.resolvedType) {
@@ -24056,10 +24237,6 @@ var ts;
             type.indexType = indexType;
             return type;
         }
-        function getIndexedAccessTypeForTypeParameter(objectType, indexType) {
-            var indexedAccessTypes = indexType.resolvedIndexedAccessTypes || (indexType.resolvedIndexedAccessTypes = []);
-            return indexedAccessTypes[objectType.id] || (indexedAccessTypes[objectType.id] = createIndexedAccessType(objectType, indexType));
-        }
         function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
             var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
             var propName = indexType.flags & (32 | 64 | 256) ?
@@ -24082,7 +24259,7 @@ var ts;
                     return getTypeOfSymbol(prop);
                 }
             }
-            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 34 | 340 | 512)) {
+            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 | 340 | 512)) {
                 if (isTypeAny(objectType)) {
                     return anyType;
                 }
@@ -24122,20 +24299,38 @@ var ts;
             }
             return unknownType;
         }
+        function getIndexedAccessForMappedType(type, indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
+            if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
+                error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
+                return unknownType;
+            }
+            var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
+            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
+            return addOptionality(instantiateType(getTemplateTypeFromMappedType(type), templateMapper), !!type.declaration.questionToken);
+        }
         function getIndexedAccessType(objectType, indexType, accessNode) {
-            if (indexType.flags & 16384) {
-                if (accessNode && !isTypeAssignableTo(getConstraintOfTypeParameter(indexType) || emptyObjectType, getIndexType(objectType))) {
-                    error(accessNode, ts.Diagnostics.Type_0_is_not_constrained_to_keyof_1, typeToString(indexType), typeToString(objectType));
-                    return unknownType;
+            if (indexType.flags & 16384 ||
+                objectType.flags & 16384 && indexType.flags & 262144 ||
+                isGenericMappedType(objectType)) {
+                if (accessNode) {
+                    if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
+                        error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+                        return unknownType;
+                    }
                 }
-                return getIndexedAccessTypeForTypeParameter(objectType, indexType);
+                if (isGenericMappedType(objectType)) {
+                    return getIndexedAccessForMappedType(objectType, indexType, accessNode);
+                }
+                var id = objectType.id + "," + indexType.id;
+                return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
             }
-            var apparentType = getApparentType(objectType);
+            var apparentObjectType = getApparentType(objectType);
             if (indexType.flags & 65536 && !(indexType.flags & 8190)) {
                 var propTypes = [];
                 for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                     var t = _a[_i];
-                    var propType = getPropertyTypeForIndexType(apparentType, t, accessNode, false);
+                    var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, false);
                     if (propType === unknownType) {
                         return unknownType;
                     }
@@ -24143,7 +24338,7 @@ var ts;
                 }
                 return getUnionType(propTypes);
             }
-            return getPropertyTypeForIndexType(apparentType, indexType, accessNode, true);
+            return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, true);
         }
         function getTypeFromIndexedAccessTypeNode(node) {
             var links = getNodeLinks(node);
@@ -24160,6 +24355,7 @@ var ts;
                 type.aliasSymbol = getAliasSymbolForTypeNode(node);
                 type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                 links.resolvedType = type;
+                getConstraintTypeFromMappedType(type);
             }
             return links.resolvedType;
         }
@@ -24328,18 +24524,18 @@ var ts;
                     return nullType;
                 case 129:
                     return neverType;
-                case 288:
-                    return nullType;
                 case 289:
-                    return undefinedType;
+                    return nullType;
                 case 290:
+                    return undefinedType;
+                case 291:
                     return neverType;
                 case 167:
                 case 98:
                     return getTypeFromThisTypeNode(node);
                 case 171:
                     return getTypeFromLiteralTypeNode(node);
-                case 287:
+                case 288:
                     return getTypeFromLiteralTypeNode(node.literal);
                 case 157:
                 case 272:
@@ -24372,7 +24568,7 @@ var ts;
                 case 158:
                 case 159:
                 case 161:
-                case 286:
+                case 287:
                 case 274:
                     return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                 case 168:
@@ -24533,6 +24729,28 @@ var ts;
             return result;
         }
         function instantiateMappedType(type, mapper) {
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 262144) {
+                var typeParameter_1 = constraintType.type;
+                var mappedTypeParameter = mapper(typeParameter_1);
+                if (typeParameter_1 !== mappedTypeParameter) {
+                    return mapType(mappedTypeParameter, function (t) {
+                        if (isMappableType(t)) {
+                            var replacementMapper = createUnaryTypeMapper(typeParameter_1, t);
+                            var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
+                            combinedMapper.mappedTypes = mapper.mappedTypes;
+                            return instantiateMappedObjectType(type, combinedMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateMappedObjectType(type, mapper);
+        }
+        function isMappableType(type) {
+            return type.flags & (16384 | 32768 | 131072 | 524288);
+        }
+        function instantiateMappedObjectType(type, mapper) {
             var result = createObjectType(32 | 64, type.symbol);
             result.declaration = type.declaration;
             result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
@@ -24891,7 +25109,7 @@ var ts;
                 return false;
             if (target.flags & 1 || source.flags & 8192)
                 return true;
-            if (source.flags & 34 && target.flags & 2)
+            if (source.flags & 262178 && target.flags & 2)
                 return true;
             if (source.flags & 340 && target.flags & 4)
                 return true;
@@ -25015,11 +25233,6 @@ var ts;
                 }
                 if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                     return -1;
-                if (source.flags & 262144) {
-                    if (maybeTypeOfKind(target, 2) && maybeTypeOfKind(target, 4)) {
-                        return -1;
-                    }
-                }
                 if (getObjectFlags(source) & 128 && source.flags & 1048576) {
                     if (hasExcessProperties(source, target, reportErrors)) {
                         if (reportErrors) {
@@ -25059,10 +25272,21 @@ var ts;
                     }
                 }
                 if (target.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(target);
-                    if (constraint && constraint.flags & 262144) {
-                        if (result = isRelatedTo(source, constraint, reportErrors)) {
-                            return result;
+                    if (getObjectFlags(source) & 32 && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
+                        if (!source.declaration.questionToken) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(target);
+                        if (constraint && constraint.flags & 262144) {
+                            if (result = isRelatedTo(source, constraint, reportErrors)) {
+                                return result;
+                            }
                         }
                     }
                 }
@@ -25079,16 +25303,32 @@ var ts;
                         }
                     }
                 }
+                else if (target.flags & 524288) {
+                    if (source.flags & 524288 && source.indexType === target.indexType) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                }
                 if (source.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(source);
-                    if (!constraint || constraint.flags & 1) {
-                        constraint = emptyObjectType;
-                    }
-                    constraint = getTypeWithThisArgument(constraint, source);
-                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
-                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
-                        errorInfo = saveErrorInfo;
-                        return result;
+                    if (getObjectFlags(target) & 32 && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
+                        var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
+                        var templateType = getTemplateTypeFromMappedType(target);
+                        if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(source);
+                        if (!constraint || constraint.flags & 1) {
+                            constraint = emptyObjectType;
+                        }
+                        constraint = getTypeWithThisArgument(constraint, source);
+                        var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+                        if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
+                        }
                     }
                 }
                 else {
@@ -25097,22 +25337,12 @@ var ts;
                             return result;
                         }
                     }
-                    if (isGenericMappedType(target)) {
-                        if (isGenericMappedType(source)) {
-                            if ((result = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) &&
-                                (result = isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors))) {
-                                return result;
-                            }
-                        }
-                    }
-                    else {
-                        var apparentSource = getApparentType(source);
-                        if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
-                            var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
-                            if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
-                                errorInfo = saveErrorInfo;
-                                return result;
-                            }
+                    var apparentSource = getApparentType(source);
+                    if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
+                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
                         }
                     }
                 }
@@ -25319,6 +25549,9 @@ var ts;
                 if (expandingFlags === 3) {
                     result = 1;
                 }
+                else if (isGenericMappedType(source) || isGenericMappedType(target)) {
+                    result = mappedTypeRelatedTo(source, target, reportErrors);
+                }
                 else {
                     result = propertiesRelatedTo(source, target, reportErrors);
                     if (result) {
@@ -25346,6 +25579,33 @@ var ts;
                 }
                 return result;
             }
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                if (isGenericMappedType(target)) {
+                    if (isGenericMappedType(source)) {
+                        var result_2;
+                        if (relation === identityRelation) {
+                            var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
+                            var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
+                            if (readonlyMatches && optionalMatches) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                        else {
+                            if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (relation !== identityRelation && isEmptyObjectType(resolveStructuredTypeMembers(target))) {
+                    return -1;
+                }
+                return 0;
+            }
             function propertiesRelatedTo(source, target, reportErrors) {
                 if (relation === identityRelation) {
                     return propertiesIdenticalTo(source, target);
@@ -25821,7 +26081,7 @@ var ts;
                 return type;
             }
             var types = [type];
-            if (flags & 34)
+            if (flags & 262178)
                 types.push(emptyStringType);
             if (flags & 340)
                 types.push(zeroType);
@@ -26156,19 +26416,6 @@ var ts;
                     }
                 }
                 else {
-                    if (getObjectFlags(target) & 32) {
-                        var constraintType = getConstraintTypeFromMappedType(target);
-                        if (getObjectFlags(source) & 32) {
-                            inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
-                            inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                        if (constraintType.flags & 16384) {
-                            inferFromTypes(getIndexType(source), constraintType);
-                            inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                    }
                     source = getApparentType(source);
                     if (source.flags & 32768) {
                         if (isInProcess(source, target)) {
@@ -26189,14 +26436,30 @@ var ts;
                         sourceStack[depth] = source;
                         targetStack[depth] = target;
                         depth++;
-                        inferFromProperties(source, target);
-                        inferFromSignatures(source, target, 0);
-                        inferFromSignatures(source, target, 1);
-                        inferFromIndexTypes(source, target);
+                        inferFromObjectTypes(source, target);
                         depth--;
                     }
                 }
             }
+            function inferFromObjectTypes(source, target) {
+                if (getObjectFlags(target) & 32) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (getObjectFlags(source) & 32) {
+                        inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
+                        inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                    if (constraintType.flags & 16384) {
+                        inferFromTypes(getIndexType(source), constraintType);
+                        inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                }
+                inferFromProperties(source, target);
+                inferFromSignatures(source, target, 0);
+                inferFromSignatures(source, target, 1);
+                inferFromIndexTypes(source, target);
+            }
             function inferFromProperties(source, target) {
                 var properties = getPropertiesOfObjectType(target);
                 for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
@@ -26531,7 +26794,7 @@ var ts;
         }
         function getTypeWithDefault(type, defaultExpression) {
             if (defaultExpression) {
-                var defaultType = checkExpression(defaultExpression);
+                var defaultType = getTypeOfExpression(defaultExpression);
                 return getUnionType([getTypeWithFacts(type, 131072), defaultType]);
             }
             return type;
@@ -26554,7 +26817,7 @@ var ts;
         function getAssignedTypeOfBinaryExpression(node) {
             return node.parent.kind === 175 || node.parent.kind === 257 ?
                 getTypeWithDefault(getAssignedType(node), node.right) :
-                checkExpression(node.right);
+                getTypeOfExpression(node.right);
         }
         function getAssignedTypeOfArrayLiteralElement(node, element) {
             return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
@@ -26602,7 +26865,7 @@ var ts;
         }
         function getTypeOfInitializer(node) {
             var links = getNodeLinks(node);
-            return links.resolvedType || checkExpression(node);
+            return links.resolvedType || getTypeOfExpression(node);
         }
         function getInitialTypeOfVariableDeclaration(node) {
             if (node.initializer) {
@@ -26655,7 +26918,7 @@ var ts;
         }
         function getTypeOfSwitchClause(clause) {
             if (clause.kind === 253) {
-                var caseType = getRegularTypeOfLiteralType(checkExpression(clause.expression));
+                var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
                 return isUnitType(caseType) ? caseType : undefined;
             }
             return neverType;
@@ -26735,7 +26998,7 @@ var ts;
             return evolvingArrayTypes[elementType.id] || (evolvingArrayTypes[elementType.id] = createEvolvingArrayType(elementType));
         }
         function addEvolvingArrayElementType(evolvingArrayType, node) {
-            var elementType = getBaseTypeOfLiteralType(checkExpression(node));
+            var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
             return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
         }
         function createFinalArrayType(elementType) {
@@ -26783,7 +27046,7 @@ var ts;
                 parent.parent.operatorToken.kind === 57 &&
                 parent.parent.left === parent &&
                 !ts.isAssignmentTarget(parent.parent) &&
-                isTypeAnyOrAllConstituentTypesHaveKind(checkExpression(parent.argumentExpression), 340 | 2048);
+                isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 | 2048);
             return isLengthPushOrUnshift || isElementAssignment;
         }
         function maybeTypePredicateCall(node) {
@@ -26921,7 +27184,7 @@ var ts;
                             }
                         }
                         else {
-                            var indexType = checkExpression(node.left.argumentExpression);
+                            var indexType = getTypeOfExpression(node.left.argumentExpression);
                             if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 | 2048)) {
                                 evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                             }
@@ -27102,7 +27365,7 @@ var ts;
                 if (operator === 32 || operator === 34) {
                     assumeTrue = !assumeTrue;
                 }
-                var valueType = checkExpression(value);
+                var valueType = getTypeOfExpression(value);
                 if (valueType.flags & 6144) {
                     if (!strictNullChecks) {
                         return type;
@@ -27174,7 +27437,7 @@ var ts;
                     }
                     return type;
                 }
-                var rightType = checkExpression(expr.right);
+                var rightType = getTypeOfExpression(expr.right);
                 if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                     return type;
                 }
@@ -27202,16 +27465,16 @@ var ts;
                     }
                 }
                 if (targetType) {
-                    return getNarrowedType(type, targetType, assumeTrue);
+                    return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
                 }
                 return type;
             }
-            function getNarrowedType(type, candidate, assumeTrue) {
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
                 if (!assumeTrue) {
-                    return filterType(type, function (t) { return !isTypeInstanceOf(t, candidate); });
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
                 }
                 if (type.flags & 65536) {
-                    var assignableType = filterType(type, function (t) { return isTypeInstanceOf(t, candidate); });
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                     if (!(assignableType.flags & 8192)) {
                         return assignableType;
                     }
@@ -27238,7 +27501,7 @@ var ts;
                     var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                     if (predicateArgument) {
                         if (isMatchingReference(reference, predicateArgument)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, predicateArgument)) {
                             return declaredType;
@@ -27251,7 +27514,7 @@ var ts;
                         var accessExpression = invokedExpression;
                         var possibleReference = ts.skipParentheses(accessExpression.expression);
                         if (isMatchingReference(reference, possibleReference)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, possibleReference)) {
                             return declaredType;
@@ -27287,7 +27550,7 @@ var ts;
                     location = location.parent;
                 }
                 if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
-                    var type = checkExpression(location);
+                    var type = getTypeOfExpression(location);
                     if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                         return type;
                     }
@@ -27622,9 +27885,9 @@ var ts;
             return anyType;
         }
         function getTypeForThisExpressionFromJSDoc(node) {
-            var typeTag = ts.getJSDocTypeTag(node);
-            if (typeTag && typeTag.typeExpression && typeTag.typeExpression.type && typeTag.typeExpression.type.kind === 274) {
-                var jsDocFunctionType = typeTag.typeExpression.type;
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 274) {
+                var jsDocFunctionType = jsdocType;
                 if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277) {
                     return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
                 }
@@ -27809,11 +28072,11 @@ var ts;
                 }
                 if (ts.isBindingPattern(declaration.parent)) {
                     var parentDeclaration = declaration.parent.parent;
-                    var name_20 = declaration.propertyName || declaration.name;
+                    var name_19 = declaration.propertyName || declaration.name;
                     if (ts.isVariableLike(parentDeclaration) &&
                         parentDeclaration.type &&
-                        !ts.isBindingPattern(name_20)) {
-                        var text = ts.getTextOfPropertyName(name_20);
+                        !ts.isBindingPattern(name_19)) {
+                        var text = ts.getTextOfPropertyName(name_19);
                         if (text) {
                             return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                         }
@@ -27892,13 +28155,13 @@ var ts;
                     return undefined;
                 }
                 if (node === binaryExpression.right) {
-                    return checkExpression(binaryExpression.left);
+                    return getTypeOfExpression(binaryExpression.left);
                 }
             }
             else if (operator === 53) {
                 var type = getContextualType(binaryExpression);
                 if (!type && node === binaryExpression.right) {
-                    type = checkExpression(binaryExpression.left);
+                    type = getTypeOfExpression(binaryExpression.left);
                 }
                 return type;
             }
@@ -28204,7 +28467,7 @@ var ts;
             var links = getNodeLinks(node.expression);
             if (!links.resolvedType) {
                 links.resolvedType = checkExpression(node.expression);
-                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 34 | 512)) {
+                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 262178 | 512)) {
                     error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
                 }
                 else {
@@ -28213,10 +28476,10 @@ var ts;
             }
             return links.resolvedType;
         }
-        function getObjectLiteralIndexInfo(node, properties, kind) {
+        function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
             var propTypes = [];
             for (var i = 0; i < properties.length; i++) {
-                if (kind === 0 || isNumericName(node.properties[i].name)) {
+                if (kind === 0 || isNumericName(propertyNodes[i + offset].name)) {
                     propTypes.push(getTypeOfSymbol(properties[i]));
                 }
             }
@@ -28237,8 +28500,9 @@ var ts;
             var patternWithComputedProperties = false;
             var hasComputedStringProperty = false;
             var hasComputedNumberProperty = false;
-            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
-                var memberDecl = _a[_i];
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
                 var member = memberDecl.symbol;
                 if (memberDecl.kind === 257 ||
                     memberDecl.kind === 258 ||
@@ -28299,6 +28563,7 @@ var ts;
                         return unknownType;
                     }
                     spread = getSpreadType(spread, type, false);
+                    offset = i + 1;
                     continue;
                 }
                 else {
@@ -28319,8 +28584,8 @@ var ts;
                 propertiesArray.push(member);
             }
             if (contextualTypeHasPattern) {
-                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
-                    var prop = _c[_b];
+                for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
                     if (!propertiesTable[prop.name]) {
                         if (!(prop.flags & 536870912)) {
                             error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
@@ -28340,8 +28605,8 @@ var ts;
             }
             return createObjectLiteralType();
             function createObjectLiteralType() {
-                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 0) : undefined;
-                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 1) : undefined;
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1) : undefined;
                 var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
                 var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576;
                 result.flags |= 4194304 | freshObjectLiteralFlag | (typeFlags & 14680064);
@@ -28883,7 +29148,7 @@ var ts;
                         if (node.kind === 212 &&
                             child === node.statement &&
                             getForInVariableSymbol(node) === symbol &&
-                            hasNumericPropertyNames(checkExpression(node.expression))) {
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                             return true;
                         }
                         child = node;
@@ -28976,19 +29241,19 @@ var ts;
             for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
                 var signature = signatures_2[_i];
                 var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
-                var parent_9 = signature.declaration && signature.declaration.parent;
+                var parent_8 = signature.declaration && signature.declaration.parent;
                 if (!lastSymbol || symbol === lastSymbol) {
-                    if (lastParent && parent_9 === lastParent) {
+                    if (lastParent && parent_8 === lastParent) {
                         index++;
                     }
                     else {
-                        lastParent = parent_9;
+                        lastParent = parent_8;
                         index = cutoffIndex;
                     }
                 }
                 else {
                     index = cutoffIndex = result.length;
-                    lastParent = parent_9;
+                    lastParent = parent_8;
                 }
                 lastSymbol = symbol;
                 if (signature.hasLiteralTypes) {
@@ -29956,7 +30221,7 @@ var ts;
             if (!node.possiblyExhaustive) {
                 return false;
             }
-            var type = checkExpression(node.expression);
+            var type = getTypeOfExpression(node.expression);
             if (!isLiteralType(type)) {
                 return false;
             }
@@ -30292,10 +30557,10 @@ var ts;
             if (leftType === silentNeverType || rightType === silentNeverType) {
                 return silentNeverType;
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 | 340 | 512)) {
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 | 512))) {
                 error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             return booleanType;
@@ -30304,20 +30569,20 @@ var ts;
             var properties = node.properties;
             for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                 var p = properties_5[_i];
-                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p);
+                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
             }
             return sourceType;
         }
-        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property) {
+        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
             if (property.kind === 257 || property.kind === 258) {
-                var name_21 = property.name;
-                if (name_21.kind === 142) {
-                    checkComputedPropertyName(name_21);
+                var name_20 = property.name;
+                if (name_20.kind === 142) {
+                    checkComputedPropertyName(name_20);
                 }
-                if (isComputedNonLiteralName(name_21)) {
+                if (isComputedNonLiteralName(name_20)) {
                     return undefined;
                 }
-                var text = ts.getTextOfPropertyName(name_21);
+                var text = ts.getTextOfPropertyName(name_20);
                 var type = isTypeAny(objectLiteralType)
                     ? objectLiteralType
                     : getTypeOfPropertyOfType(objectLiteralType, text) ||
@@ -30332,13 +30597,18 @@ var ts;
                     }
                 }
                 else {
-                    error(name_21, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_21));
+                    error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_20));
                 }
             }
             else if (property.kind === 259) {
-                if (property.expression.kind !== 70) {
-                    error(property.expression, ts.Diagnostics.An_object_rest_element_must_be_an_identifier);
+                var nonRestNames = [];
+                if (allProperties) {
+                    for (var i = 0; i < allProperties.length - 1; i++) {
+                        nonRestNames.push(allProperties[i].name);
+                    }
                 }
+                var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                return checkDestructuringAssignment(property.expression, type);
             }
             else {
                 error(property, ts.Diagnostics.Property_assignment_expected);
@@ -30423,7 +30693,10 @@ var ts;
         }
         function checkReferenceAssignment(target, sourceType, contextualMapper) {
             var targetType = checkExpression(target, contextualMapper);
-            if (checkReferenceExpression(target, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
+            var error = target.parent.kind === 259 ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            if (checkReferenceExpression(target, error)) {
                 checkTypeAssignableTo(sourceType, targetType, target, undefined);
             }
             return sourceType;
@@ -30560,7 +30833,7 @@ var ts;
                         resultType = numberType;
                     }
                     else {
-                        if (isTypeOfKind(leftType, 34) || isTypeOfKind(rightType, 34)) {
+                        if (isTypeOfKind(leftType, 262178) || isTypeOfKind(rightType, 262178)) {
                             resultType = stringType;
                         }
                         else if (isTypeAny(leftType) || isTypeAny(rightType)) {
@@ -30583,6 +30856,8 @@ var ts;
                 case 29:
                 case 30:
                     if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(leftType);
+                        rightType = getBaseTypeOfLiteralType(rightType);
                         if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                             reportOperatorError();
                         }
@@ -30756,7 +31031,7 @@ var ts;
         function checkDeclarationInitializer(declaration) {
             var type = checkExpressionCached(declaration.initializer);
             return ts.getCombinedNodeFlags(declaration) & 2 ||
-                ts.getCombinedModifierFlags(declaration) & 64 ||
+                ts.getCombinedModifierFlags(declaration) & 64 && !ts.isParameterPropertyDeclaration(declaration) ||
                 isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
         }
         function isLiteralContextualType(contextualType) {
@@ -30768,7 +31043,7 @@ var ts;
                     }
                     contextualType = apparentType;
                 }
-                return maybeTypeOfKind(contextualType, 480);
+                return maybeTypeOfKind(contextualType, (480 | 262144));
             }
             return false;
         }
@@ -30805,6 +31080,16 @@ var ts;
             }
             return type;
         }
+        function getTypeOfExpression(node) {
+            if (node.kind === 179 && node.expression.kind !== 96) {
+                var funcType = checkNonNullExpression(node.expression);
+                var signature = getSingleCallSignature(funcType);
+                if (signature && !signature.typeParameters) {
+                    return getReturnTypeOfSignature(signature);
+                }
+            }
+            return checkExpression(node);
+        }
         function checkExpression(node, contextualMapper) {
             var type;
             if (node.kind === 141) {
@@ -30985,9 +31270,9 @@ var ts;
                 else if (parameterName) {
                     var hasReportedError = false;
                     for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
-                        var name_22 = _a[_i].name;
-                        if (ts.isBindingPattern(name_22) &&
-                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, parameterName, typePredicate.parameterName)) {
+                        var name_21 = _a[_i].name;
+                        if (ts.isBindingPattern(name_21) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_21, parameterName, typePredicate.parameterName)) {
                             hasReportedError = true;
                             break;
                         }
@@ -31007,9 +31292,9 @@ var ts;
                 case 158:
                 case 149:
                 case 148:
-                    var parent_10 = node.parent;
-                    if (node === parent_10.type) {
-                        return parent_10;
+                    var parent_9 = node.parent;
+                    if (node === parent_9.type) {
+                        return parent_9;
                     }
             }
         }
@@ -31019,15 +31304,15 @@ var ts;
                 if (ts.isOmittedExpression(element)) {
                     continue;
                 }
-                var name_23 = element.name;
-                if (name_23.kind === 70 &&
-                    name_23.text === predicateVariableName) {
+                var name_22 = element.name;
+                if (name_22.kind === 70 &&
+                    name_22.text === predicateVariableName) {
                     error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                     return true;
                 }
-                else if (name_23.kind === 173 ||
-                    name_23.kind === 172) {
-                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_23, predicateVariableNode, predicateVariableName)) {
+                else if (name_22.kind === 173 ||
+                    name_22.kind === 172) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, predicateVariableNode, predicateVariableName)) {
                         return true;
                     }
                 }
@@ -31258,8 +31543,8 @@ var ts;
                     if (superCallShouldBeFirst) {
                         var statements = node.body.statements;
                         var superCallStatement = void 0;
-                        for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
-                            var statement = statements_2[_i];
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
                             if (statement.kind === 207 && ts.isSuperCall(statement.expression)) {
                                 superCallStatement = statement;
                                 break;
@@ -31402,7 +31687,7 @@ var ts;
             var type = getTypeFromMappedTypeNode(node);
             var constraintType = getConstraintTypeFromMappedType(type);
             var keyType = constraintType.flags & 16384 ? getApparentTypeOfTypeParameter(constraintType) : constraintType;
-            checkTypeAssignableTo(keyType, stringOrNumberType, node.typeParameter.constraint);
+            checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
         }
         function isPrivateWithinAmbient(node) {
             return (ts.getModifierFlags(node) & 8) && ts.isInAmbientContext(node);
@@ -31646,10 +31931,10 @@ var ts;
                     case 229:
                         return 2097152 | 1048576;
                     case 234:
-                        var result_2 = 0;
+                        var result_3 = 0;
                         var target = resolveAlias(getSymbolOfNode(d));
-                        ts.forEach(target.declarations, function (d) { result_2 |= getDeclarationSpaces(d); });
-                        return result_2;
+                        ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
+                        return result_3;
                     default:
                         return 1048576;
                 }
@@ -32188,8 +32473,8 @@ var ts;
                                 container.kind === 230 ||
                                 container.kind === 261);
                         if (!namesShareScope) {
-                            var name_24 = symbolToString(localDeclarationSymbol);
-                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_24, name_24);
+                            var name_23 = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_23, name_23);
                         }
                     }
                 }
@@ -32260,13 +32545,13 @@ var ts;
                 if (node.propertyName && node.propertyName.kind === 142) {
                     checkComputedPropertyName(node.propertyName);
                 }
-                var parent_11 = node.parent.parent;
-                var parentType = getTypeForBindingElementParent(parent_11);
-                var name_25 = node.propertyName || node.name;
-                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_25));
+                var parent_10 = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent_10);
+                var name_24 = node.propertyName || node.name;
+                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_24));
                 markPropertyAsReferenced(property);
-                if (parent_11.initializer && property && getParentOfSymbol(property)) {
-                    checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
+                if (parent_10.initializer && property && getParentOfSymbol(property)) {
+                    checkClassPropertyAccess(parent_10, parent_10.initializer, parentType, property);
                 }
             }
             if (ts.isBindingPattern(node.name)) {
@@ -32427,6 +32712,7 @@ var ts;
         }
         function checkForInStatement(node) {
             checkGrammarForInOrForOfStatement(node);
+            var rightType = checkNonNullExpression(node.expression);
             if (node.initializer.kind === 224) {
                 var variable = node.initializer.declarations[0];
                 if (variable && ts.isBindingPattern(variable.name)) {
@@ -32440,15 +32726,14 @@ var ts;
                 if (varExpr.kind === 175 || varExpr.kind === 176) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
                 }
-                else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34)) {
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
                 }
                 else {
                     checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
                 }
             }
-            var rightType = checkNonNullExpression(node.expression);
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             checkSourceElement(node.statement);
@@ -32573,12 +32858,12 @@ var ts;
             var arrayType = arrayOrStringType;
             if (arrayOrStringType.flags & 65536) {
                 var arrayTypes = arrayOrStringType.types;
-                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 34); });
+                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178); });
                 if (filteredTypes !== arrayTypes) {
                     arrayType = getUnionType(filteredTypes, true);
                 }
             }
-            else if (arrayOrStringType.flags & 34) {
+            else if (arrayOrStringType.flags & 262178) {
                 arrayType = neverType;
             }
             var hasStringConstituent = arrayOrStringType !== arrayType;
@@ -32603,7 +32888,7 @@ var ts;
             }
             var arrayElementType = getIndexTypeOfType(arrayType, 1) || unknownType;
             if (hasStringConstituent) {
-                if (arrayElementType.flags & 34) {
+                if (arrayElementType.flags & 262178) {
                     return stringType;
                 }
                 return getUnionType([arrayElementType, stringType], true);
@@ -33287,7 +33572,7 @@ var ts;
                                         return undefined;
                                     }
                                 }
-                                enumType_1 = checkExpression(expression);
+                                enumType_1 = getTypeOfExpression(expression);
                                 if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384))) {
                                     return undefined;
                                 }
@@ -33482,9 +33767,9 @@ var ts;
                     break;
                 case 174:
                 case 223:
-                    var name_26 = node.name;
-                    if (ts.isBindingPattern(name_26)) {
-                        for (var _b = 0, _c = name_26.elements; _b < _c.length; _b++) {
+                    var name_25 = node.name;
+                    if (ts.isBindingPattern(name_25)) {
+                        for (var _b = 0, _c = name_25.elements; _b < _c.length; _b++) {
                             var el = _c[_b];
                             checkModuleAugmentationElement(el, isGlobalAugmentation);
                         }
@@ -34222,7 +34507,7 @@ var ts;
                         }
                     }
                 case 96:
-                    var type = ts.isPartOfExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+                    var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                     return type.symbol;
                 case 167:
                     return getTypeFromTypeNode(node).symbol;
@@ -34244,7 +34529,7 @@ var ts;
                     }
                 case 8:
                     if (node.parent.kind === 178 && node.parent.argumentExpression === node) {
-                        var objectType = checkExpression(node.parent.expression);
+                        var objectType = getTypeOfExpression(node.parent.expression);
                         if (objectType === unknownType)
                             return undefined;
                         var apparentType = getApparentType(objectType);
@@ -34275,7 +34560,7 @@ var ts;
                 return getTypeFromTypeNode(node);
             }
             if (ts.isPartOfExpression(node)) {
-                return getTypeOfExpression(node);
+                return getRegularTypeOfExpression(node);
             }
             if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
                 return getBaseTypes(getDeclaredTypeOfSymbol(getSymbolOfNode(node.parent.parent)))[0];
@@ -34313,7 +34598,7 @@ var ts;
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 192) {
-                var iteratedType = checkExpression(expr.parent.right);
+                var iteratedType = getTypeOfExpression(expr.parent.right);
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 257) {
@@ -34329,11 +34614,11 @@ var ts;
             var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
             return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
         }
-        function getTypeOfExpression(expr) {
+        function getRegularTypeOfExpression(expr) {
             if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
                 expr = expr.parent;
             }
-            return getRegularTypeOfLiteralType(checkExpression(expr));
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
         }
         function getParentTypeOfClassElement(node) {
             var classSymbol = getSymbolOfNode(node.parent);
@@ -34356,9 +34641,9 @@ var ts;
         function getRootSymbols(symbol) {
             if (symbol.flags & 268435456) {
                 var symbols_3 = [];
-                var name_27 = symbol.name;
+                var name_26 = symbol.name;
                 ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
-                    var symbol = getPropertyOfType(t, name_27);
+                    var symbol = getPropertyOfType(t, name_26);
                     if (symbol) {
                         symbols_3.push(symbol);
                     }
@@ -34411,7 +34696,7 @@ var ts;
         }
         function isNameOfModuleOrEnumDeclaration(node) {
             var parent = node.parent;
-            return ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
+            return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
         }
         function getReferencedExportContainer(node, prefixLocals) {
             node = ts.getParseTreeNode(node, ts.isIdentifier);
@@ -34619,7 +34904,7 @@ var ts;
             else if (isTypeOfKind(type, 340)) {
                 return ts.TypeReferenceSerializationKind.NumberLikeType;
             }
-            else if (isTypeOfKind(type, 34)) {
+            else if (isTypeOfKind(type, 262178)) {
                 return ts.TypeReferenceSerializationKind.StringLikeType;
             }
             else if (isTupleType(type)) {
@@ -34650,7 +34935,7 @@ var ts;
             getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
         }
         function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
-            var type = getWidenedType(getTypeOfExpression(expr));
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
         }
         function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
@@ -34669,9 +34954,9 @@ var ts;
             }
             var location = reference;
             if (startInDeclarationContainer) {
-                var parent_12 = reference.parent;
-                if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
-                    location = getDeclarationContainer(parent_12);
+                var parent_11 = reference.parent;
+                if (ts.isDeclaration(parent_11) && reference === parent_11.name) {
+                    location = getDeclarationContainer(parent_11);
                 }
             }
             return resolveName(location, reference.text, 107455 | 1048576 | 8388608, undefined, undefined);
@@ -34784,9 +35069,9 @@ var ts;
                 }
                 var current = symbol;
                 while (true) {
-                    var parent_13 = getParentOfSymbol(current);
-                    if (parent_13) {
-                        current = parent_13;
+                    var parent_12 = getParentOfSymbol(current);
+                    if (parent_12) {
+                        current = parent_12;
                     }
                     else {
                         break;
@@ -35463,9 +35748,9 @@ var ts;
                 if (prop.kind === 259) {
                     continue;
                 }
-                var name_28 = prop.name;
-                if (name_28.kind === 142) {
-                    checkGrammarComputedPropertyName(name_28);
+                var name_27 = prop.name;
+                if (name_27.kind === 142) {
+                    checkGrammarComputedPropertyName(name_27);
                 }
                 if (prop.kind === 258 && !inDestructuring && prop.objectAssignmentInitializer) {
                     return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
@@ -35481,8 +35766,8 @@ var ts;
                 var currentKind = void 0;
                 if (prop.kind === 257 || prop.kind === 258) {
                     checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
-                    if (name_28.kind === 8) {
-                        checkGrammarNumericLiteral(name_28);
+                    if (name_27.kind === 8) {
+                        checkGrammarNumericLiteral(name_27);
                     }
                     currentKind = Property;
                 }
@@ -35498,7 +35783,7 @@ var ts;
                 else {
                     ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
                 }
-                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_28);
+                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_27);
                 if (effectiveName === undefined) {
                     continue;
                 }
@@ -35508,18 +35793,18 @@ var ts;
                 else {
                     var existingKind = seen[effectiveName];
                     if (currentKind === Property && existingKind === Property) {
-                        grammarErrorOnNode(name_28, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_28));
+                        grammarErrorOnNode(name_27, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_27));
                     }
                     else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                         if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                             seen[effectiveName] = currentKind | existingKind;
                         }
                         else {
-                            return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                         }
                     }
                     else {
-                        return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                     }
                 }
             }
@@ -35532,12 +35817,12 @@ var ts;
                     continue;
                 }
                 var jsxAttr = attr;
-                var name_29 = jsxAttr.name;
-                if (!seen[name_29.text]) {
-                    seen[name_29.text] = true;
+                var name_28 = jsxAttr.name;
+                if (!seen[name_28.text]) {
+                    seen[name_28.text] = true;
                 }
                 else {
-                    return grammarErrorOnNode(name_29, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                    return grammarErrorOnNode(name_28, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
                 }
                 var initializer = jsxAttr.initializer;
                 if (initializer && initializer.kind === 252 && !initializer.expression) {
@@ -35985,10 +36270,15 @@ var ts;
     function reduceNode(node, f, initial) {
         return node ? f(initial, node) : initial;
     }
-    function reduceEachChild(node, f, initial) {
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
         if (node === undefined) {
             return initial;
         }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
         var kind = node.kind;
         if ((kind > 0 && kind <= 140)) {
             return initial;
@@ -36002,108 +36292,108 @@ var ts;
             case 206:
             case 198:
             case 222:
-            case 292:
+            case 293:
                 break;
             case 142:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 144:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 145:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 147:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 149:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 150:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 151:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 152:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 172:
             case 173:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 174:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 175:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 176:
-                result = ts.reduceLeft(node.properties, f, result);
+                result = reduceNodes(node.properties, cbNodes, result);
                 break;
             case 177:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 178:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.argumentExpression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
                 break;
             case 179:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 180:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 181:
-                result = reduceNode(node.tag, f, result);
-                result = reduceNode(node.template, f, result);
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNode(node.template, cbNode, result);
                 break;
             case 184:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 185:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 183:
             case 186:
@@ -36113,205 +36403,205 @@ var ts;
             case 195:
             case 196:
             case 201:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 190:
             case 191:
-                result = reduceNode(node.operand, f, result);
+                result = reduceNode(node.operand, cbNode, result);
                 break;
             case 192:
-                result = reduceNode(node.left, f, result);
-                result = reduceNode(node.right, f, result);
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
                 break;
             case 193:
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.whenTrue, f, result);
-                result = reduceNode(node.whenFalse, f, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
                 break;
             case 194:
-                result = reduceNode(node.head, f, result);
-                result = ts.reduceLeft(node.templateSpans, f, result);
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
                 break;
             case 197:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 199:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
                 break;
             case 202:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.literal, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
                 break;
             case 204:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 205:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.declarationList, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
                 break;
             case 207:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 208:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.thenStatement, f, result);
-                result = reduceNode(node.elseStatement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
                 break;
             case 209:
-                result = reduceNode(node.statement, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 210:
             case 217:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 211:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.incrementor, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 212:
             case 213:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 216:
             case 220:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 218:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.caseBlock, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
                 break;
             case 219:
-                result = reduceNode(node.label, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 221:
-                result = reduceNode(node.tryBlock, f, result);
-                result = reduceNode(node.catchClause, f, result);
-                result = reduceNode(node.finallyBlock, f, result);
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
                 break;
             case 223:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 224:
-                result = ts.reduceLeft(node.declarations, f, result);
+                result = reduceNodes(node.declarations, cbNodes, result);
                 break;
             case 225:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 226:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 232:
-                result = ts.reduceLeft(node.clauses, f, result);
+                result = reduceNodes(node.clauses, cbNodes, result);
                 break;
             case 235:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.importClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 236:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.namedBindings, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
                 break;
             case 237:
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 238:
             case 242:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 239:
             case 243:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 240:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 241:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.exportClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 246:
-                result = reduceNode(node.openingElement, f, result);
-                result = ts.reduceLeft(node.children, f, result);
-                result = reduceNode(node.closingElement, f, result);
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
                 break;
             case 247:
             case 248:
-                result = reduceNode(node.tagName, f, result);
-                result = ts.reduceLeft(node.attributes, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.attributes, cbNodes, result);
                 break;
             case 249:
-                result = reduceNode(node.tagName, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
                 break;
             case 250:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 251:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 252:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 253:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
             case 254:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 255:
-                result = ts.reduceLeft(node.types, f, result);
+                result = reduceNodes(node.types, cbNodes, result);
                 break;
             case 256:
-                result = reduceNode(node.variableDeclaration, f, result);
-                result = reduceNode(node.block, f, result);
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
                 break;
             case 257:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 258:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.objectAssignmentInitializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
                 break;
             case 259:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 261:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
-            case 293:
-                result = reduceNode(node.expression, f, result);
+            case 294:
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             default:
                 var edgeTraversalPath = nodeEdgeTraversalMap[kind];
@@ -36321,8 +36611,8 @@ var ts;
                         var value = node[edge.name];
                         if (value !== undefined) {
                             result = ts.isArray(value)
-                                ? ts.reduceLeft(value, f, result)
-                                : f(result, value);
+                                ? reduceNodes(value, cbNodes, result)
+                                : cbNode(result, value);
                         }
                     }
                 }
@@ -36332,8 +36622,8 @@ var ts;
     }
     ts.reduceEachChild = reduceEachChild;
     function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
-        if (node === undefined) {
-            return undefined;
+        if (node === undefined || visitor === undefined) {
+            return node;
         }
         aggregateTransformFlags(node);
         var visited = visitor(node);
@@ -36410,6 +36700,35 @@ var ts;
         return updated || nodes;
     }
     ts.visitNodes = visitNodes;
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
+            statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
+        }
+        var declarations = context.endLexicalEnvironment();
+        return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    function visitParameterList(nodes, visitor, context) {
+        context.startLexicalEnvironment();
+        var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
     function visitEachChild(node, visitor, context) {
         if (node === undefined) {
             return undefined;
@@ -36430,23 +36749,23 @@ var ts;
             case 142:
                 return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
             case 144:
-                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 147:
                 return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 149:
-                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 150:
-                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 151:
-                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 152:
-                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 172:
                 return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
             case 173:
                 return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
             case 174:
-                return ts.updateBindingElement(node, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 175:
                 return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
             case 176:
@@ -36464,9 +36783,9 @@ var ts;
             case 183:
                 return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
             case 184:
-                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 185:
-                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isConciseBody, true), context.endLexicalEnvironment()));
+                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 186:
                 return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
             case 187:
@@ -36534,7 +36853,7 @@ var ts;
             case 224:
                 return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
             case 225:
-                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 226:
                 return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
             case 232:
@@ -36586,9 +36905,8 @@ var ts;
             case 259:
                 return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
             case 261:
-                context.startLexicalEnvironment();
-                return ts.updateSourceFileNode(node, ts.createNodeArray(ts.concatenate(visitNodes(node.statements, visitor, ts.isStatement), context.endLexicalEnvironment()), node.statements));
-            case 293:
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
+            case 294:
                 return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
             default:
                 var updated = void 0;
@@ -36616,6 +36934,15 @@ var ts;
         }
     }
     ts.visitEachChild = visitEachChild;
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        return ts.isNodeArray(statements)
+            ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
+            : ts.addRange(statements, declarations);
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
     function mergeFunctionBodyLexicalEnvironment(body, declarations) {
         if (body && declarations !== undefined && declarations.length > 0) {
             if (ts.isBlock(body)) {
@@ -36646,22 +36973,37 @@ var ts;
         if (node === undefined) {
             return 0;
         }
-        else if (node.transformFlags & 536870912) {
+        if (node.transformFlags & 536870912) {
             return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
         }
-        else {
-            var subtreeFlags = aggregateTransformFlagsForSubtree(node);
-            return ts.computeTransformFlagsForNode(node, subtreeFlags);
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0;
         }
+        var subtreeFlags = 0;
+        var nodeArrayFlags = 0;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912;
+        }
+        nodes.transformFlags = nodeArrayFlags | 536870912;
+        return subtreeFlags;
     }
     function aggregateTransformFlagsForSubtree(node) {
         if (ts.hasModifier(node, 2) || ts.isTypeNode(node)) {
             return 0;
         }
-        return reduceEachChild(node, aggregateTransformFlagsForChildNode, 0);
+        return reduceEachChild(node, 0, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
+    }
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
     }
-    function aggregateTransformFlagsForChildNode(transformFlags, child) {
-        return transformFlags | aggregateTransformFlagsForNode(child);
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
     }
     var Debug;
     (function (Debug) {
@@ -36671,9 +37013,21 @@ var ts;
         Debug.failBadSyntaxKind = Debug.shouldAssert(1)
             ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
             : ts.noop;
+        Debug.assertEachNode = Debug.shouldAssert(1)
+            ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
         Debug.assertNode = Debug.shouldAssert(1)
             ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
             : ts.noop;
+        Debug.assertOptionalNode = Debug.shouldAssert(1)
+            ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
+        Debug.assertOptionalToken = Debug.shouldAssert(1)
+            ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
+            : ts.noop;
+        Debug.assertMissingNode = Debug.shouldAssert(1)
+            ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
+            : ts.noop;
         function getFunctionName(func) {
             if (typeof func !== "function") {
                 return "";
@@ -36692,440 +37046,316 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    function flattenDestructuringAssignment(context, node, needsValue, recordTempVariable, visitor, transformRest) {
-        if (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
-            var right = node.right;
-            if (ts.isDestructuringAssignment(right)) {
-                return flattenDestructuringAssignment(context, right, needsValue, recordTempVariable, visitor);
-            }
-            else {
-                return node.right;
-            }
-        }
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
         var location = node;
-        var value = node.right;
-        var expressions = [];
-        if (needsValue) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment, visitor);
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return value;
+                }
+            }
         }
-        else if (ts.nodeIsSynthesized(node)) {
-            location = value;
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (needsValue) {
+                value = ensureIdentifier(flattenContext, value, true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                location = value;
+            }
         }
-        flattenDestructuring(node, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        if (needsValue) {
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
             expressions.push(value);
         }
-        var expression = ts.inlineExpressions(expressions);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location) {
-            var expression = ts.createAssignment(name, value, location);
-            ts.setEmitFlags(expression, 2048);
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
+            ts.setEmitFlags(expression, 64);
             ts.aggregateTransformFlags(expression);
-            expressions.push(expression);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitAssignment(name, value, location);
-            return name;
+            expressions = ts.append(expressions, expression);
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
+            expression.original = original;
+            emitExpression(expression);
         }
     }
     ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
-    function flattenParameterDestructuring(node, value, visitor, transformRest) {
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        var pendingExpressions;
+        var pendingDeclarations = [];
         var declarations = [];
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location) {
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            ts.setEmitFlags(declaration, 2048);
-            ts.aggregateTransformFlags(declaration);
-            declarations.push(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(undefined);
-            emitAssignment(name, value, location);
-            return name;
-        }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location);
-        }
-    }
-    ts.flattenParameterDestructuring = flattenParameterDestructuring;
-    function flattenVariableDestructuring(node, value, visitor, recordTempVariable, transformRest) {
-        var declarations = [];
-        var pendingAssignments;
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location, original) {
-            if (pendingAssignments) {
-                pendingAssignments.push(value);
-                value = ts.inlineExpressions(pendingAssignments);
-                pendingAssignments = undefined;
-            }
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            declaration.original = original;
-            ts.setEmitFlags(declaration, 2048);
-            declarations.push(declaration);
-            ts.aggregateTransformFlags(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            if (recordTempVariable) {
-                var assignment = ts.createAssignment(name, value, location);
-                if (pendingAssignments) {
-                    pendingAssignments.push(assignment);
-                }
-                else {
-                    pendingAssignments = [assignment];
-                }
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, undefined, undefined);
             }
             else {
-                emitAssignment(name, value, location, undefined);
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
             }
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location, original);
-        }
-    }
-    ts.flattenVariableDestructuring = flattenVariableDestructuring;
-    function flattenVariableDestructuringToExpression(node, recordTempVariable, createAssignmentCallback, visitor) {
-        var pendingAssignments = [];
-        flattenDestructuring(node, undefined, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, false, visitor);
-        var expression = ts.inlineExpressions(pendingAssignments);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location, original) {
-            var expression = createAssignmentCallback
-                ? createAssignmentCallback(name.kind === 70 ? name : emitTempVariableAssignment(name, location), value, location)
-                : ts.createAssignment(name, value, location);
-            emitPendingAssignment(expression, original);
         }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitPendingAssignment(ts.createAssignment(name, value, location), undefined);
-            return name;
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_29 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name_29, undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
+            variable.original = original;
+            if (ts.isIdentifier(name_29)) {
+                ts.setEmitFlags(variable, 64);
+            }
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
         }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location, original);
+        return declarations;
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
         }
-        function emitPendingAssignment(expression, original) {
-            expression.original = original;
-            ts.setEmitFlags(expression, 2048);
-            pendingAssignments.push(expression);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
+            }
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
         }
     }
-    ts.flattenVariableDestructuringToExpression = flattenVariableDestructuringToExpression;
-    function flattenDestructuring(root, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor) {
-        if (value && visitor) {
-            value = ts.visitNode(value, visitor, ts.isExpression);
-        }
-        if (ts.isBinaryExpression(root)) {
-            emitDestructuringAssignment(root.left, value, location);
-        }
-        else {
-            emitBindingElement(root, value);
-        }
-        function emitDestructuringAssignment(bindingTarget, value, location) {
-            var target;
-            if (ts.isShorthandPropertyAssignment(bindingTarget)) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.objectAssignmentInitializer, visitor, ts.isExpression)
-                    : bindingTarget.objectAssignmentInitializer;
-                if (initializer) {
-                    value = createDefaultValueCheck(value, initializer, location);
-                }
-                target = bindingTarget.name;
-            }
-            else if (ts.isBinaryExpression(bindingTarget) && bindingTarget.operatorToken.kind === 57) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.right, visitor, ts.isExpression)
-                    : bindingTarget.right;
-                value = createDefaultValueCheck(value, initializer, location);
-                target = bindingTarget.left;
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
             }
-            else {
-                target = bindingTarget;
-            }
-            if (target.kind === 176) {
-                emitObjectLiteralAssignment(target, value, location);
-            }
-            else if (target.kind === 175) {
-                emitArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                var name_30 = ts.getMutableClone(target);
-                ts.setSourceMapRange(name_30, target);
-                ts.setCommentRange(name_30, target);
-                emitAssignment(name_30, value, location, undefined);
+            else if (!value) {
+                value = ts.createVoidZero();
             }
         }
-        function emitObjectLiteralAssignment(target, value, location) {
-            var properties = target.properties;
-            if (properties.length !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var bindingElements = [];
-            for (var i = 0; i < properties.length; i++) {
-                var p = properties[i];
-                if (p.kind === 257 || p.kind === 258) {
-                    if (!transformRest ||
-                        p.transformFlags & 8388608 ||
-                        (p.kind === 257 && p.initializer.transformFlags & 8388608)) {
-                        if (bindingElements.length) {
-                            emitRestAssignment(bindingElements, value, location, target);
-                            bindingElements = [];
-                        }
-                        var propName = p.name;
-                        var bindingTarget = p.kind === 258 ? p : p.initializer || propName;
-                        emitDestructuringAssignment(bindingTarget, createDestructuringPropertyAccess(value, propName), p);
-                    }
-                    else {
-                        bindingElements.push(p);
-                    }
-                }
-                else if (i === properties.length - 1 &&
-                    p.kind === 259 &&
-                    p.expression.kind === 70) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, location, target);
-                        bindingElements = [];
-                    }
-                    var propName = p.expression;
-                    var restCall = createRestCall(value, target.properties, function (p) { return p.name; }, target);
-                    emitDestructuringAssignment(propName, restCall, p);
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, location, target);
-                bindingElements = [];
-            }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitArrayLiteralAssignment(target, value, location) {
-            if (transformRest) {
-                emitESNextArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                emitES2015ArrayLiteralAssignment(target, value, location);
-            }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitESNextArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var expressions = [];
-            var spreadContainingExpressions = [];
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind === 198) {
-                    continue;
-                }
-                if (e.transformFlags & 8388608 && i < numElements - 1) {
-                    var tmp = ts.createTempVariable(recordTempVariable);
-                    spreadContainingExpressions.push([e, tmp]);
-                    expressions.push(tmp);
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, element);
+        }
+    }
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1
+                    && !(element.transformFlags & (524288 | 1048576))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 | 1048576))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, element);
                 }
                 else {
-                    expressions.push(e);
-                }
-            }
-            emitAssignment(ts.updateArrayLiteral(target, expressions), value, undefined, undefined);
-            for (var _i = 0, spreadContainingExpressions_1 = spreadContainingExpressions; _i < spreadContainingExpressions_1.length; _i++) {
-                var _a = spreadContainingExpressions_1[_i], e = _a[0], tmp = _a[1];
-                emitDestructuringAssignment(e, tmp, e);
-            }
-        }
-        function emitES2015ArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind !== 198) {
-                    if (e.kind !== 196) {
-                        emitDestructuringAssignment(e, ts.createElementAccess(value, ts.createLiteral(i)), e);
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
                     }
-                    else if (i === numElements - 1) {
-                        emitDestructuringAssignment(e.expression, ts.createArraySlice(value, i), e);
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                     }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
                 }
             }
-        }
-        function createRestCall(value, elements, getPropertyName, location) {
-            var propertyNames = [];
-            for (var i = 0; i < elements.length - 1; i++) {
-                if (ts.isOmittedExpression(elements[i])) {
-                    continue;
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
                 }
-                var str = ts.createSynthesizedNode(9);
-                str.pos = location.pos;
-                str.end = location.end;
-                str.text = ts.getTextOfPropertyName(getPropertyName(elements[i]));
-                propertyNames.push(str);
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            var args = ts.createSynthesizedNodeArray([value, ts.createArrayLiteral(propertyNames, location)]);
-            return ts.createCall(ts.createIdentifier("__rest"), undefined, args);
         }
-        function emitBindingElement(target, value) {
-            var initializer = visitor ? ts.visitNode(target.initializer, visitor, ts.isExpression) : target.initializer;
-            if (transformRest) {
-                value = value || initializer;
-            }
-            else if (initializer) {
-                value = value ? createDefaultValueCheck(value, initializer, target) : initializer;
-            }
-            else if (!value) {
-                value = ts.createVoidZero();
-            }
-            var name = target.name;
-            if (!ts.isBindingPattern(name)) {
-                emitAssignment(name, value, target, target);
-            }
-            else {
-                var numElements = name.elements.length;
-                if (numElements !== 1) {
-                    value = ensureIdentifier(value, numElements !== 0, target, emitTempVariableAssignment);
-                }
-                if (name.kind === 173) {
-                    emitArrayBindingElement(name, value);
-                }
-                else {
-                    emitObjectBindingElement(target, value);
-                }
-            }
-        }
-        function emitArrayBindingElement(name, value) {
-            if (transformRest) {
-                emitESNextArrayBindingElement(name, value);
-            }
-            else {
-                emitES2015ArrayBindingElement(name, value);
-            }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function emitES2015ArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (!element.dotDotDotToken) {
-                    emitBindingElement(element, ts.createElementAccess(value, i));
-                }
-                else if (i === numElements - 1) {
-                    emitBindingElement(element, ts.createArraySlice(value, i));
-                }
-            }
+    }
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1 && (flattenContext.level < 1 || numElements === 0)) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
         }
-        function emitESNextArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            var spreadContainingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (element.transformFlags & 8388608 && i < numElements - 1) {
-                    spreadContainingElements.push(element);
-                    bindingElements.push(ts.createBindingElement(undefined, undefined, ts.getGeneratedNameForNode(element), undefined, value));
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1) {
+                if (element.transformFlags & 1048576) {
+                    var temp = ts.createTempVariable(undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
                 }
                 else {
-                    bindingElements.push(element);
+                    bindingElements = ts.append(bindingElements, element);
                 }
             }
-            emitAssignment(ts.updateArrayBindingPattern(name, bindingElements), value, undefined, undefined);
-            for (var _i = 0, spreadContainingElements_1 = spreadContainingElements; _i < spreadContainingElements_1.length; _i++) {
-                var element = spreadContainingElements_1[_i];
-                emitBindingElement(element, ts.getGeneratedNameForNode(element));
+            else if (ts.isOmittedExpression(element)) {
+                continue;
             }
-        }
-        function emitObjectBindingElement(target, value) {
-            var name = target.name;
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (i === numElements - 1 && element.dotDotDotToken) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var restCall = createRestCall(value, name.elements, function (element) { return element.propertyName || element.name; }, name);
-                    emitBindingElement(element, restCall);
-                }
-                else if (transformRest && !(element.transformFlags & 8388608)) {
-                    bindingElements.push(element);
-                }
-                else {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var propName = element.propertyName || element.name;
-                    emitBindingElement(element, createDestructuringPropertyAccess(value, propName));
-                }
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, target, target);
-                bindingElements = [];
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
         }
-        function createDefaultValueCheck(value, defaultValue, location) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            return ts.createConditional(ts.createStrictEquality(value, ts.createVoidZero()), ts.createToken(54), defaultValue, ts.createToken(55), value);
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function createDestructuringPropertyAccess(expression, propertyName) {
-            if (ts.isComputedPropertyName(propertyName)) {
-                return ts.createElementAccess(expression, ensureIdentifier(propertyName.expression, false, propertyName, emitTempVariableAssignment));
-            }
-            else if (ts.isLiteralExpression(propertyName)) {
-                var clone_2 = ts.getSynthesizedClone(propertyName);
-                clone_2.text = ts.unescapeIdentifier(clone_2.text);
-                return ts.createElementAccess(expression, clone_2);
-            }
-            else {
-                if (ts.isGeneratedIdentifier(propertyName)) {
-                    var clone_3 = ts.getSynthesizedClone(propertyName);
-                    clone_3.text = ts.unescapeIdentifier(clone_3.text);
-                    return ts.createPropertyAccess(expression, clone_3);
-                }
-                else {
-                    return ts.createPropertyAccess(expression, ts.createIdentifier(ts.unescapeIdentifier(propertyName.text)));
-                }
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
             }
         }
     }
-    function ensureIdentifier(value, reuseIdentifierExpressions, location, emitTempVariableAssignment, visitor) {
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, false, propertyName);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else if (ts.isStringOrNumericLiteral(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name_30 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
+            return ts.createPropertyAccess(value, name_30);
+        }
+    }
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
         if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
             return value;
         }
         else {
-            if (visitor) {
-                value = ts.visitNode(value, visitor, ts.isExpression);
+            var temp = ts.createTempVariable(undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.createAssignment(temp, value, location));
+            }
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, undefined);
             }
-            return emitTempVariableAssignment(value, location);
+            return temp;
         }
     }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(undefined, undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    var restHelper = {
+        name: "typescript:rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
+    };
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
+            }
+        }
+        return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
+    }
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     var USE_NEW_TYPE_METADATA_FORMAT = false;
     function transformTypeScript(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
@@ -37141,7 +37371,6 @@ var ts;
         var currentNamespaceContainerName;
         var currentScope;
         var currentScopeFirstDeclarationsOfName;
-        var currentExternalHelpersModuleName;
         var enabledSubstitutions;
         var classAliases;
         var applicableSubstitutions;
@@ -37150,7 +37379,11 @@ var ts;
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function saveStateAndInvoke(node, f) {
             var savedCurrentScope = currentScope;
@@ -37163,14 +37396,29 @@ var ts;
             currentScope = savedCurrentScope;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 261:
+                case 232:
+                case 231:
+                case 204:
+                    currentScope = node;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 226:
+                case 225:
+                    if (ts.hasModifier(node, 2)) {
+                        break;
+                    }
+                    recordEmittedDeclarationInScope(node);
+                    break;
+            }
+        }
         function visitor(node) {
             return saveStateAndInvoke(node, visitorWorker);
         }
         function visitorWorker(node) {
-            if (node.kind === 261) {
-                return visitSourceFile(node);
-            }
-            else if (node.transformFlags & 1) {
+            if (node.transformFlags & 1) {
                 return visitTypeScript(node);
             }
             else if (node.transformFlags & 2) {
@@ -37338,53 +37586,9 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            switch (node.kind) {
-                case 261:
-                case 232:
-                case 231:
-                case 204:
-                    currentScope = node;
-                    currentScopeFirstDeclarationsOfName = undefined;
-                    break;
-                case 226:
-                case 225:
-                    if (ts.hasModifier(node, 2)) {
-                        break;
-                    }
-                    recordEmittedDeclarationInScope(node);
-                    break;
-            }
-        }
         function visitSourceFile(node) {
-            currentSourceFile = node;
-            if (compilerOptions.alwaysStrict &&
-                !(ts.isExternalModule(node) && (compilerOptions.target >= 2 || compilerOptions.module === ts.ModuleKind.ES2015))) {
-                node = ts.ensureUseStrict(node);
-            }
-            if (node.flags & 64512
-                && compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                startLexicalEnvironment();
-                var statements = [];
-                var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
-                var externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText);
-                var externalHelpersModuleImport = ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText));
-                externalHelpersModuleImport.parent = node;
-                externalHelpersModuleImport.flags &= ~8;
-                statements.push(externalHelpersModuleImport);
-                currentExternalHelpersModuleName = externalHelpersModuleName;
-                ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
-                ts.addRange(statements, endLexicalEnvironment());
-                currentExternalHelpersModuleName = undefined;
-                node = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
-                node.externalHelpersModuleName = externalHelpersModuleName;
-            }
-            else {
-                node = ts.visitEachChild(node, sourceElementVisitor, context);
-            }
-            ts.setEmitFlags(node, 1 | ts.getEmitFlags(node));
-            return node;
+            var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, 0, alwaysStrict));
         }
         function shouldEmitDecorateCallForClass(node) {
             if (node.decorators && node.decorators.length > 0) {
@@ -37430,7 +37634,7 @@ var ts;
             }
             if (statements.length > 1) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 33554432);
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -37438,7 +37642,7 @@ var ts;
             var classDeclaration = ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, hasExtendsClause), node);
             var emitFlags = ts.getEmitFlags(node);
             if (hasStaticProperties) {
-                emitFlags |= 1024;
+                emitFlags |= 32;
             }
             ts.setOriginalNode(classDeclaration, node);
             ts.setEmitFlags(classDeclaration, emitFlags);
@@ -37469,7 +37673,7 @@ var ts;
                     enableSubstitutionForClassAliases();
                     classAliases[ts.getOriginalNodeId(node)] = ts.getSynthesizedClone(temp);
                 }
-                ts.setEmitFlags(classExpression, 524288 | ts.getEmitFlags(classExpression));
+                ts.setEmitFlags(classExpression, 32768 | ts.getEmitFlags(classExpression));
                 expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
                 ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
                 expressions.push(ts.startOnNewLine(temp));
@@ -37488,7 +37692,7 @@ var ts;
         }
         function transformConstructor(node, hasExtendsClause) {
             var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
-            var hasParameterPropertyAssignments = node.transformFlags & 4194304;
+            var hasParameterPropertyAssignments = node.transformFlags & 262144;
             var constructor = ts.getFirstConstructorWithBody(node);
             if (!hasInstancePropertyWithInitializer && !hasParameterPropertyAssignments) {
                 return ts.visitEachChild(constructor, visitor, context);
@@ -37498,14 +37702,13 @@ var ts;
             return ts.startOnNewLine(ts.setOriginalNode(ts.createConstructor(undefined, undefined, parameters, body, constructor || node), constructor));
         }
         function transformConstructorParameters(constructor) {
-            return constructor
-                ? ts.visitNodes(constructor.parameters, visitor, ts.isParameter)
-                : [];
+            return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(node, constructor, hasExtendsClause) {
             var statements = [];
             var indexOfFirstStatement = 0;
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             if (constructor) {
                 indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
                 var propertyAssignments = getParametersWithPropertyAssignments(constructor);
@@ -37520,7 +37723,7 @@ var ts;
                 ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement));
             }
             ts.addRange(statements, endLexicalEnvironment());
-            return ts.setMultiLine(ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined), true);
+            return ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined, true);
         }
         function addPrologueDirectivesAndInitialSuperCall(ctor, result) {
             if (ctor.body) {
@@ -37549,9 +37752,9 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name));
             var name = node.name;
             var propertyName = ts.getMutableClone(name);
-            ts.setEmitFlags(propertyName, 49152 | 1536);
+            ts.setEmitFlags(propertyName, 1536 | 48);
             var localName = ts.getMutableClone(name);
-            ts.setEmitFlags(localName, 49152);
+            ts.setEmitFlags(localName, 1536);
             return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, node.name), localName), ts.moveRangePos(node, -1)));
         }
         function getInitializedProperties(node, isStatic) {
@@ -37724,8 +37927,8 @@ var ts;
                     ? ts.createVoidZero()
                     : ts.createNull()
                 : undefined;
-            var helper = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
-            ts.setEmitFlags(helper, 49152);
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536);
             return helper;
         }
         function addConstructorDecorationStatement(statements, node) {
@@ -37742,9 +37945,9 @@ var ts;
             }
             var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
             var localName = ts.getLocalName(node, false, true);
-            var decorate = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, localName);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
             var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
-            ts.setEmitFlags(expression, 49152);
+            ts.setEmitFlags(expression, 1536);
             ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
             return expression;
         }
@@ -37757,8 +37960,8 @@ var ts;
                 expressions = [];
                 for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                     var decorator = decorators_1[_i];
-                    var helper = ts.createParamHelper(currentExternalHelpersModuleName, transformDecorator(decorator), parameterOffset, decorator.expression);
-                    ts.setEmitFlags(helper, 49152);
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, decorator.expression);
+                    ts.setEmitFlags(helper, 1536);
                     expressions.push(helper);
                 }
             }
@@ -37775,13 +37978,13 @@ var ts;
         function addOldTypeMetadata(node, decoratorExpressions) {
             if (compilerOptions.emitDecoratorMetadata) {
                 if (shouldAddTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:type", serializeTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
                 }
                 if (shouldAddParamTypesMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:paramtypes", serializeParameterTypesOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node)));
                 }
                 if (shouldAddReturnTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:returntype", serializeReturnTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
                 }
             }
         }
@@ -37798,7 +38001,7 @@ var ts;
                     (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeReturnTypeOfNode(node))));
                 }
                 if (properties) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
                 }
             }
         }
@@ -37967,7 +38170,7 @@ var ts;
                 case ts.TypeReferenceSerializationKind.Unknown:
                     var serialized = serializeEntityNameAsExpression(node.typeName, true);
                     var temp = ts.createTempVariable(hoistVariableDeclaration);
-                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictEquality(ts.createTypeOf(ts.createAssignment(temp, serialized)), ts.createLiteral("function")), temp), ts.createIdentifier("Object"));
+                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
                 case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                     return serializeEntityNameAsExpression(node.typeName, false);
                 case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
@@ -38023,7 +38226,7 @@ var ts;
             return ts.createPropertyAccess(left, node.right);
         }
         function getGlobalSymbolNameWithFallback() {
-            return ts.createConditional(ts.createStrictEquality(ts.createTypeOf(ts.createIdentifier("Symbol")), ts.createLiteral("function")), ts.createToken(54), ts.createIdentifier("Symbol"), ts.createToken(55), ts.createIdentifier("Object"));
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
         }
         function getExpressionForPropertyName(member, generateNameForComputedPropertyName) {
             var name = member.name;
@@ -38078,11 +38281,12 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return undefined;
             }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            var updated = ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function shouldEmitAccessorDeclaration(node) {
             return !(ts.nodeIsMissing(node.body) && ts.hasModifier(node, 128));
@@ -38091,86 +38295,46 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createGetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateGetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitSetAccessor(node) {
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createSetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateSetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitFunctionDeclaration(node) {
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return ts.createNotEmittedStatement(node);
             }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
+            var updated = ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
             if (isNamespaceExport(node)) {
-                var statements = [func];
+                var statements = [updated];
                 addExportMemberAssignment(statements, node);
                 return statements;
             }
-            return func;
+            return updated;
         }
         function visitFunctionExpression(node) {
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitArrowFunction(node) {
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformFunctionBodyWorker(node.body);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
-            currentScope = body;
-            currentScopeFirstDeclarationsOfName = ts.createMap();
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-        }
-        function transformConciseBody(node) {
-            return transformConciseBodyWorker(node.body, false);
-        }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
-            if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
-            }
-            else {
-                startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
-                var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
-            }
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitParameter(node) {
             if (ts.parameterIsThisKeyword(node)) {
@@ -38180,7 +38344,7 @@ var ts;
             ts.setOriginalNode(parameter, node);
             ts.setCommentRange(parameter, node);
             ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
-            ts.setEmitFlags(parameter.name, 1024);
+            ts.setEmitFlags(parameter.name, 32);
             return parameter;
         }
         function visitVariableStatement(node) {
@@ -38198,7 +38362,7 @@ var ts;
         function transformInitializedVariable(node) {
             var name = node.name;
             if (ts.isBindingPattern(name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createNamespaceExportExpression, visitor);
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, false, createNamespaceExportExpression);
             }
             else {
                 return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), node);
@@ -38239,10 +38403,10 @@ var ts;
                 return undefined;
             }
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -38334,13 +38498,13 @@ var ts;
                     ts.setSourceMapRange(statement, node);
                 }
                 ts.setCommentRange(statement, node);
-                ts.setEmitFlags(statement, 32768 | 33554432);
+                ts.setEmitFlags(statement, 1024 | 2097152);
                 statements.push(statement);
                 return true;
             }
             else {
                 var mergeMarker = ts.createMergeDeclarationMarker(statement);
-                ts.setEmitFlags(mergeMarker, 49152 | 33554432);
+                ts.setEmitFlags(mergeMarker, 1536 | 2097152);
                 statements.push(mergeMarker);
                 return false;
             }
@@ -38352,10 +38516,10 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name), "TypeScript module should have an Identifier name.");
             enableSubstitutionForNamespaceExports();
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -38411,7 +38575,7 @@ var ts;
             currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
             var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), blockLocation, true);
             if (body.kind !== 231) {
-                ts.setEmitFlags(block, ts.getEmitFlags(block) | 49152);
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536);
             }
             return block;
         }
@@ -38486,7 +38650,7 @@ var ts;
                 return undefined;
             }
             var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
-            ts.setEmitFlags(moduleReference, 49152 | 65536);
+            ts.setEmitFlags(moduleReference, 1536 | 2048);
             if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
                 return ts.setOriginalNode(ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
                     ts.setOriginalNode(ts.createVariableDeclaration(node.name, undefined, moduleReference), node)
@@ -38639,10 +38803,10 @@ var ts;
                     if (declaration) {
                         var classAlias = classAliases[declaration.id];
                         if (classAlias) {
-                            var clone_4 = ts.getSynthesizedClone(classAlias);
-                            ts.setSourceMapRange(clone_4, node);
-                            ts.setCommentRange(clone_4, node);
-                            return clone_4;
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
                         }
                     }
                 }
@@ -38650,7 +38814,7 @@ var ts;
             return undefined;
         }
         function trySubstituteNamespaceExportedName(node) {
-            if (enabledSubstitutions & applicableSubstitutions && !ts.isLocalName(node)) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var container = resolver.getReferencedExportContainer(node, false);
                 if (container && container.kind !== 261) {
                     var substitute = (applicableSubstitutions & 2 && container.kind === 230) ||
@@ -38695,10 +38859,278 @@ var ts;
         }
     }
     ts.transformTypeScript = transformTypeScript;
+    var paramHelper = {
+        name: "typescript:param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(paramHelper);
+        return ts.createCall(ts.getHelperName("__param"), undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ], location);
+    }
+    var metadataHelper = {
+        name: "typescript:metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(metadataHelper);
+        return ts.createCall(ts.getHelperName("__metadata"), undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    var decorateHelper = {
+        name: "typescript:decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        context.requestEmitHelper(decorateHelper);
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, undefined, true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        return ts.createCall(ts.getHelperName("__decorate"), undefined, argumentsArray, location);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformESNext(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        return transformSourceFile;
+        function transformSourceFile(node) {
+            if (ts.isDeclarationFile(node)) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, true);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 8) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 176:
+                    return visitObjectLiteralExpression(node);
+                case 192:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 223:
+                    return visitVariableDeclaration(node);
+                case 213:
+                    return visitForOfStatement(node);
+                case 211:
+                    return visitForStatement(node);
+                case 188:
+                    return visitVoidExpression(node);
+                case 150:
+                    return visitConstructorDeclaration(node);
+                case 149:
+                    return visitMethodDeclaration(node);
+                case 151:
+                    return visitGetAccessorDeclaration(node);
+                case 152:
+                    return visitSetAccessorDeclaration(node);
+                case 225:
+                    return visitFunctionDeclaration(node);
+                case 184:
+                    return visitFunctionExpression(node);
+                case 185:
+                    return visitArrowFunction(node);
+                case 144:
+                    return visitParameter(node);
+                case 207:
+                    return visitExpressionStatement(node);
+                case 183:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+                var e = elements_3[_i];
+                if (e.kind === 259) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    if (!chunkObject) {
+                        chunkObject = [];
+                    }
+                    if (e.kind === 257) {
+                        var p = e;
+                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
+                    }
+                    else {
+                        chunkObject.push(e);
+                    }
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 1048576) {
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 176) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                return createAssignHelper(context, objects);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 25) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableDeclaration(node) {
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitForOfStatement(node) {
+            var leadingStatements;
+            var temp;
+            var initializer = ts.skipParentheses(node.initializer);
+            if (initializer.transformFlags & 1048576) {
+                if (ts.isVariableDeclarationList(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
+                    var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.updateVariableDeclarationList(initializer, declarations), initializer);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+                else if (ts.isAssignmentPattern(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, node.initializer)), visitor, context, 1);
+                    leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, node.initializer));
+                }
+            }
+            if (temp) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                var block = ts.isBlock(statement)
+                    ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
+                    : ts.createBlock(ts.append(leadingStatements, statement), statement, true);
+                return ts.updateForOf(node, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(temp, undefined, undefined, node.initializer)
+                ], node.initializer, 1), expression, block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 1048576) {
+                return ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            return ts.updateConstructor(node, undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitGetAccessorDeclaration(node) {
+            return ts.updateGetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitSetAccessorDeclaration(node) {
+            return ts.updateSetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, node.modifiers, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var leadingStatements;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 1048576) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 524288);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+            }
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            var trailingStatements = endLexicalEnvironment();
+            if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
+                var block = ts.convertToFunctionBody(body, true);
+                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
+            }
+            return body;
+        }
+    }
+    ts.transformESNext = transformESNext;
+    var assignHelper = {
+        name: "typescript:assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        context.requestEmitHelper(assignHelper);
+        return ts.createCall(ts.getHelperName("__assign"), undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    var entities = createEntitiesMap();
     function transformJsx(context) {
         var compilerOptions = context.getCompilerOptions();
         var currentSourceFile;
@@ -38708,17 +39140,15 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            node = ts.visitEachChild(node, visitor, context);
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
             currentSourceFile = undefined;
-            return node;
+            return visited;
         }
         function visitor(node) {
             if (node.transformFlags & 4) {
                 return visitorWorker(node);
             }
-            else if (node.transformFlags & 8) {
-                return ts.visitEachChild(node, visitor, context);
-            }
             else {
                 return node;
             }
@@ -38732,8 +39162,7 @@ var ts;
                 case 252:
                     return visitJsxExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return undefined;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function transformJsxChildToExpression(node) {
@@ -38771,8 +39200,10 @@ var ts;
                 if (ts.isJsxSpreadAttribute(attrs[0])) {
                     segments.unshift(ts.createObjectLiteral());
                 }
-                objectProperties = ts.singleOrUndefined(segments)
-                    || ts.createAssignHelper(currentSourceFile.externalHelpersModuleName, segments);
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
             }
             var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
             if (isChild) {
@@ -38888,458 +39319,291 @@ var ts;
         }
     }
     ts.transformJsx = transformJsx;
-    function createEntitiesMap() {
-        return ts.createMap({
-            "quot": 0x0022,
-            "amp": 0x0026,
-            "apos": 0x0027,
-            "lt": 0x003C,
-            "gt": 0x003E,
-            "nbsp": 0x00A0,
-            "iexcl": 0x00A1,
-            "cent": 0x00A2,
-            "pound": 0x00A3,
-            "curren": 0x00A4,
-            "yen": 0x00A5,
-            "brvbar": 0x00A6,
-            "sect": 0x00A7,
-            "uml": 0x00A8,
-            "copy": 0x00A9,
-            "ordf": 0x00AA,
-            "laquo": 0x00AB,
-            "not": 0x00AC,
-            "shy": 0x00AD,
-            "reg": 0x00AE,
-            "macr": 0x00AF,
-            "deg": 0x00B0,
-            "plusmn": 0x00B1,
-            "sup2": 0x00B2,
-            "sup3": 0x00B3,
-            "acute": 0x00B4,
-            "micro": 0x00B5,
-            "para": 0x00B6,
-            "middot": 0x00B7,
-            "cedil": 0x00B8,
-            "sup1": 0x00B9,
-            "ordm": 0x00BA,
-            "raquo": 0x00BB,
-            "frac14": 0x00BC,
-            "frac12": 0x00BD,
-            "frac34": 0x00BE,
-            "iquest": 0x00BF,
-            "Agrave": 0x00C0,
-            "Aacute": 0x00C1,
-            "Acirc": 0x00C2,
-            "Atilde": 0x00C3,
-            "Auml": 0x00C4,
-            "Aring": 0x00C5,
-            "AElig": 0x00C6,
-            "Ccedil": 0x00C7,
-            "Egrave": 0x00C8,
-            "Eacute": 0x00C9,
-            "Ecirc": 0x00CA,
-            "Euml": 0x00CB,
-            "Igrave": 0x00CC,
-            "Iacute": 0x00CD,
-            "Icirc": 0x00CE,
-            "Iuml": 0x00CF,
-            "ETH": 0x00D0,
-            "Ntilde": 0x00D1,
-            "Ograve": 0x00D2,
-            "Oacute": 0x00D3,
-            "Ocirc": 0x00D4,
-            "Otilde": 0x00D5,
-            "Ouml": 0x00D6,
-            "times": 0x00D7,
-            "Oslash": 0x00D8,
-            "Ugrave": 0x00D9,
-            "Uacute": 0x00DA,
-            "Ucirc": 0x00DB,
-            "Uuml": 0x00DC,
-            "Yacute": 0x00DD,
-            "THORN": 0x00DE,
-            "szlig": 0x00DF,
-            "agrave": 0x00E0,
-            "aacute": 0x00E1,
-            "acirc": 0x00E2,
-            "atilde": 0x00E3,
-            "auml": 0x00E4,
-            "aring": 0x00E5,
-            "aelig": 0x00E6,
-            "ccedil": 0x00E7,
-            "egrave": 0x00E8,
-            "eacute": 0x00E9,
-            "ecirc": 0x00EA,
-            "euml": 0x00EB,
-            "igrave": 0x00EC,
-            "iacute": 0x00ED,
-            "icirc": 0x00EE,
-            "iuml": 0x00EF,
-            "eth": 0x00F0,
-            "ntilde": 0x00F1,
-            "ograve": 0x00F2,
-            "oacute": 0x00F3,
-            "ocirc": 0x00F4,
-            "otilde": 0x00F5,
-            "ouml": 0x00F6,
-            "divide": 0x00F7,
-            "oslash": 0x00F8,
-            "ugrave": 0x00F9,
-            "uacute": 0x00FA,
-            "ucirc": 0x00FB,
-            "uuml": 0x00FC,
-            "yacute": 0x00FD,
-            "thorn": 0x00FE,
-            "yuml": 0x00FF,
-            "OElig": 0x0152,
-            "oelig": 0x0153,
-            "Scaron": 0x0160,
-            "scaron": 0x0161,
-            "Yuml": 0x0178,
-            "fnof": 0x0192,
-            "circ": 0x02C6,
-            "tilde": 0x02DC,
-            "Alpha": 0x0391,
-            "Beta": 0x0392,
-            "Gamma": 0x0393,
-            "Delta": 0x0394,
-            "Epsilon": 0x0395,
-            "Zeta": 0x0396,
-            "Eta": 0x0397,
-            "Theta": 0x0398,
-            "Iota": 0x0399,
-            "Kappa": 0x039A,
-            "Lambda": 0x039B,
-            "Mu": 0x039C,
-            "Nu": 0x039D,
-            "Xi": 0x039E,
-            "Omicron": 0x039F,
-            "Pi": 0x03A0,
-            "Rho": 0x03A1,
-            "Sigma": 0x03A3,
-            "Tau": 0x03A4,
-            "Upsilon": 0x03A5,
-            "Phi": 0x03A6,
-            "Chi": 0x03A7,
-            "Psi": 0x03A8,
-            "Omega": 0x03A9,
-            "alpha": 0x03B1,
-            "beta": 0x03B2,
-            "gamma": 0x03B3,
-            "delta": 0x03B4,
-            "epsilon": 0x03B5,
-            "zeta": 0x03B6,
-            "eta": 0x03B7,
-            "theta": 0x03B8,
-            "iota": 0x03B9,
-            "kappa": 0x03BA,
-            "lambda": 0x03BB,
-            "mu": 0x03BC,
-            "nu": 0x03BD,
-            "xi": 0x03BE,
-            "omicron": 0x03BF,
-            "pi": 0x03C0,
-            "rho": 0x03C1,
-            "sigmaf": 0x03C2,
-            "sigma": 0x03C3,
-            "tau": 0x03C4,
-            "upsilon": 0x03C5,
-            "phi": 0x03C6,
-            "chi": 0x03C7,
-            "psi": 0x03C8,
-            "omega": 0x03C9,
-            "thetasym": 0x03D1,
-            "upsih": 0x03D2,
-            "piv": 0x03D6,
-            "ensp": 0x2002,
-            "emsp": 0x2003,
-            "thinsp": 0x2009,
-            "zwnj": 0x200C,
-            "zwj": 0x200D,
-            "lrm": 0x200E,
-            "rlm": 0x200F,
-            "ndash": 0x2013,
-            "mdash": 0x2014,
-            "lsquo": 0x2018,
-            "rsquo": 0x2019,
-            "sbquo": 0x201A,
-            "ldquo": 0x201C,
-            "rdquo": 0x201D,
-            "bdquo": 0x201E,
-            "dagger": 0x2020,
-            "Dagger": 0x2021,
-            "bull": 0x2022,
-            "hellip": 0x2026,
-            "permil": 0x2030,
-            "prime": 0x2032,
-            "Prime": 0x2033,
-            "lsaquo": 0x2039,
-            "rsaquo": 0x203A,
-            "oline": 0x203E,
-            "frasl": 0x2044,
-            "euro": 0x20AC,
-            "image": 0x2111,
-            "weierp": 0x2118,
-            "real": 0x211C,
-            "trade": 0x2122,
-            "alefsym": 0x2135,
-            "larr": 0x2190,
-            "uarr": 0x2191,
-            "rarr": 0x2192,
-            "darr": 0x2193,
-            "harr": 0x2194,
-            "crarr": 0x21B5,
-            "lArr": 0x21D0,
-            "uArr": 0x21D1,
-            "rArr": 0x21D2,
-            "dArr": 0x21D3,
-            "hArr": 0x21D4,
-            "forall": 0x2200,
-            "part": 0x2202,
-            "exist": 0x2203,
-            "empty": 0x2205,
-            "nabla": 0x2207,
-            "isin": 0x2208,
-            "notin": 0x2209,
-            "ni": 0x220B,
-            "prod": 0x220F,
-            "sum": 0x2211,
-            "minus": 0x2212,
-            "lowast": 0x2217,
-            "radic": 0x221A,
-            "prop": 0x221D,
-            "infin": 0x221E,
-            "ang": 0x2220,
-            "and": 0x2227,
-            "or": 0x2228,
-            "cap": 0x2229,
-            "cup": 0x222A,
-            "int": 0x222B,
-            "there4": 0x2234,
-            "sim": 0x223C,
-            "cong": 0x2245,
-            "asymp": 0x2248,
-            "ne": 0x2260,
-            "equiv": 0x2261,
-            "le": 0x2264,
-            "ge": 0x2265,
-            "sub": 0x2282,
-            "sup": 0x2283,
-            "nsub": 0x2284,
-            "sube": 0x2286,
-            "supe": 0x2287,
-            "oplus": 0x2295,
-            "otimes": 0x2297,
-            "perp": 0x22A5,
-            "sdot": 0x22C5,
-            "lceil": 0x2308,
-            "rceil": 0x2309,
-            "lfloor": 0x230A,
-            "rfloor": 0x230B,
-            "lang": 0x2329,
-            "rang": 0x232A,
-            "loz": 0x25CA,
-            "spades": 0x2660,
-            "clubs": 0x2663,
-            "hearts": 0x2665,
-            "diams": 0x2666
-        });
-    }
-})(ts || (ts = {}));
-var ts;
-(function (ts) {
-    function transformESNext(context) {
-        var hoistVariableDeclaration = context.hoistVariableDeclaration;
-        var currentSourceFile;
-        return transformSourceFile;
-        function transformSourceFile(node) {
-            currentSourceFile = node;
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitor(node) {
-            if (node.transformFlags & 16) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 32) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
-                return node;
-            }
-        }
-        function visitorWorker(node) {
-            switch (node.kind) {
-                case 176:
-                    return visitObjectLiteralExpression(node);
-                case 192:
-                    return visitBinaryExpression(node);
-                case 223:
-                    return visitVariableDeclaration(node);
-                case 213:
-                    return visitForOfStatement(node);
-                case 172:
-                case 173:
-                    return node;
-                case 225:
-                    return visitFunctionDeclaration(node);
-                case 184:
-                    return visitFunctionExpression(node);
-                case 185:
-                    return visitArrowFunction(node);
-                case 144:
-                    return visitParameter(node);
-                default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return ts.visitEachChild(node, visitor, context);
-            }
-        }
-        function chunkObjectLiteralElements(elements) {
-            var chunkObject;
-            var objects = [];
-            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
-                var e = elements_3[_i];
-                if (e.kind === 259) {
-                    if (chunkObject) {
-                        objects.push(ts.createObjectLiteral(chunkObject));
-                        chunkObject = undefined;
-                    }
-                    var target = e.expression;
-                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
-                }
-                else {
-                    if (!chunkObject) {
-                        chunkObject = [];
-                    }
-                    if (e.kind === 257) {
-                        var p = e;
-                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
-                    }
-                    else {
-                        chunkObject.push(e);
-                    }
-                }
-            }
-            if (chunkObject) {
-                objects.push(ts.createObjectLiteral(chunkObject));
-            }
-            return objects;
-        }
-        function visitObjectLiteralExpression(node) {
-            if (ts.forEach(node.properties, function (p) { return p.kind === 259; })) {
-                var objects = chunkObjectLiteralElements(node.properties);
-                if (objects.length && objects[0].kind !== 176) {
-                    objects.unshift(ts.createObjectLiteral());
-                }
-                return ts.aggregateTransformFlags(ts.createCall(ts.createIdentifier("__assign"), undefined, objects));
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitBinaryExpression(node) {
-            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 48) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, visitor, true);
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitVariableDeclaration(node) {
-            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 48) {
-                var result = ts.flattenVariableDestructuring(node, undefined, visitor, undefined, true);
-                return result;
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitForOfStatement(node) {
-            var initializer = node.initializer;
-            if (!isRestBindingPattern(initializer) && !isRestAssignment(initializer)) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            return ts.convertForOf(node, undefined, visitor, ts.noop, context, true);
-        }
-        function isRestBindingPattern(initializer) {
-            if (ts.isVariableDeclarationList(initializer)) {
-                var declaration = ts.firstOrUndefined(initializer.declarations);
-                return declaration && declaration.name &&
-                    declaration.name.kind === 172 &&
-                    !!(declaration.name.transformFlags & 8388608);
-            }
-            return false;
-        }
-        function isRestAssignment(initializer) {
-            return initializer.kind === 176 &&
-                initializer.transformFlags & 8388608;
-        }
-        function visitParameter(node) {
-            if (isObjectRestParameter(node)) {
-                return ts.setOriginalNode(ts.createParameter(undefined, undefined, undefined, ts.getGeneratedNameForNode(node), undefined, undefined, node.initializer, node), node);
-            }
-            else {
-                return node;
-            }
-        }
-        function isObjectRestParameter(node) {
-            return node.name &&
-                node.name.kind === 172 &&
-                !!(node.name.transformFlags & 8388608);
-        }
-        function visitFunctionDeclaration(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-        function visitArrowFunction(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            var func = ts.setOriginalNode(ts.createArrowFunction(node.modifiers, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, body, node), node);
-            ts.setEmitFlags(func, 256);
-            return func;
-        }
-        function visitFunctionExpression(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionExpression(node.modifiers, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-    }
-    ts.transformESNext = transformESNext;
+    var entities = ts.createMap({
+        "quot": 0x0022,
+        "amp": 0x0026,
+        "apos": 0x0027,
+        "lt": 0x003C,
+        "gt": 0x003E,
+        "nbsp": 0x00A0,
+        "iexcl": 0x00A1,
+        "cent": 0x00A2,
+        "pound": 0x00A3,
+        "curren": 0x00A4,
+        "yen": 0x00A5,
+        "brvbar": 0x00A6,
+        "sect": 0x00A7,
+        "uml": 0x00A8,
+        "copy": 0x00A9,
+        "ordf": 0x00AA,
+        "laquo": 0x00AB,
+        "not": 0x00AC,
+        "shy": 0x00AD,
+        "reg": 0x00AE,
+        "macr": 0x00AF,
+        "deg": 0x00B0,
+        "plusmn": 0x00B1,
+        "sup2": 0x00B2,
+        "sup3": 0x00B3,
+        "acute": 0x00B4,
+        "micro": 0x00B5,
+        "para": 0x00B6,
+        "middot": 0x00B7,
+        "cedil": 0x00B8,
+        "sup1": 0x00B9,
+        "ordm": 0x00BA,
+        "raquo": 0x00BB,
+        "frac14": 0x00BC,
+        "frac12": 0x00BD,
+        "frac34": 0x00BE,
+        "iquest": 0x00BF,
+        "Agrave": 0x00C0,
+        "Aacute": 0x00C1,
+        "Acirc": 0x00C2,
+        "Atilde": 0x00C3,
+        "Auml": 0x00C4,
+        "Aring": 0x00C5,
+        "AElig": 0x00C6,
+        "Ccedil": 0x00C7,
+        "Egrave": 0x00C8,
+        "Eacute": 0x00C9,
+        "Ecirc": 0x00CA,
+        "Euml": 0x00CB,
+        "Igrave": 0x00CC,
+        "Iacute": 0x00CD,
+        "Icirc": 0x00CE,
+        "Iuml": 0x00CF,
+        "ETH": 0x00D0,
+        "Ntilde": 0x00D1,
+        "Ograve": 0x00D2,
+        "Oacute": 0x00D3,
+        "Ocirc": 0x00D4,
+        "Otilde": 0x00D5,
+        "Ouml": 0x00D6,
+        "times": 0x00D7,
+        "Oslash": 0x00D8,
+        "Ugrave": 0x00D9,
+        "Uacute": 0x00DA,
+        "Ucirc": 0x00DB,
+        "Uuml": 0x00DC,
+        "Yacute": 0x00DD,
+        "THORN": 0x00DE,
+        "szlig": 0x00DF,
+        "agrave": 0x00E0,
+        "aacute": 0x00E1,
+        "acirc": 0x00E2,
+        "atilde": 0x00E3,
+        "auml": 0x00E4,
+        "aring": 0x00E5,
+        "aelig": 0x00E6,
+        "ccedil": 0x00E7,
+        "egrave": 0x00E8,
+        "eacute": 0x00E9,
+        "ecirc": 0x00EA,
+        "euml": 0x00EB,
+        "igrave": 0x00EC,
+        "iacute": 0x00ED,
+        "icirc": 0x00EE,
+        "iuml": 0x00EF,
+        "eth": 0x00F0,
+        "ntilde": 0x00F1,
+        "ograve": 0x00F2,
+        "oacute": 0x00F3,
+        "ocirc": 0x00F4,
+        "otilde": 0x00F5,
+        "ouml": 0x00F6,
+        "divide": 0x00F7,
+        "oslash": 0x00F8,
+        "ugrave": 0x00F9,
+        "uacute": 0x00FA,
+        "ucirc": 0x00FB,
+        "uuml": 0x00FC,
+        "yacute": 0x00FD,
+        "thorn": 0x00FE,
+        "yuml": 0x00FF,
+        "OElig": 0x0152,
+        "oelig": 0x0153,
+        "Scaron": 0x0160,
+        "scaron": 0x0161,
+        "Yuml": 0x0178,
+        "fnof": 0x0192,
+        "circ": 0x02C6,
+        "tilde": 0x02DC,
+        "Alpha": 0x0391,
+        "Beta": 0x0392,
+        "Gamma": 0x0393,
+        "Delta": 0x0394,
+        "Epsilon": 0x0395,
+        "Zeta": 0x0396,
+        "Eta": 0x0397,
+        "Theta": 0x0398,
+        "Iota": 0x0399,
+        "Kappa": 0x039A,
+        "Lambda": 0x039B,
+        "Mu": 0x039C,
+        "Nu": 0x039D,
+        "Xi": 0x039E,
+        "Omicron": 0x039F,
+        "Pi": 0x03A0,
+        "Rho": 0x03A1,
+        "Sigma": 0x03A3,
+        "Tau": 0x03A4,
+        "Upsilon": 0x03A5,
+        "Phi": 0x03A6,
+        "Chi": 0x03A7,
+        "Psi": 0x03A8,
+        "Omega": 0x03A9,
+        "alpha": 0x03B1,
+        "beta": 0x03B2,
+        "gamma": 0x03B3,
+        "delta": 0x03B4,
+        "epsilon": 0x03B5,
+        "zeta": 0x03B6,
+        "eta": 0x03B7,
+        "theta": 0x03B8,
+        "iota": 0x03B9,
+        "kappa": 0x03BA,
+        "lambda": 0x03BB,
+        "mu": 0x03BC,
+        "nu": 0x03BD,
+        "xi": 0x03BE,
+        "omicron": 0x03BF,
+        "pi": 0x03C0,
+        "rho": 0x03C1,
+        "sigmaf": 0x03C2,
+        "sigma": 0x03C3,
+        "tau": 0x03C4,
+        "upsilon": 0x03C5,
+        "phi": 0x03C6,
+        "chi": 0x03C7,
+        "psi": 0x03C8,
+        "omega": 0x03C9,
+        "thetasym": 0x03D1,
+        "upsih": 0x03D2,
+        "piv": 0x03D6,
+        "ensp": 0x2002,
+        "emsp": 0x2003,
+        "thinsp": 0x2009,
+        "zwnj": 0x200C,
+        "zwj": 0x200D,
+        "lrm": 0x200E,
+        "rlm": 0x200F,
+        "ndash": 0x2013,
+        "mdash": 0x2014,
+        "lsquo": 0x2018,
+        "rsquo": 0x2019,
+        "sbquo": 0x201A,
+        "ldquo": 0x201C,
+        "rdquo": 0x201D,
+        "bdquo": 0x201E,
+        "dagger": 0x2020,
+        "Dagger": 0x2021,
+        "bull": 0x2022,
+        "hellip": 0x2026,
+        "permil": 0x2030,
+        "prime": 0x2032,
+        "Prime": 0x2033,
+        "lsaquo": 0x2039,
+        "rsaquo": 0x203A,
+        "oline": 0x203E,
+        "frasl": 0x2044,
+        "euro": 0x20AC,
+        "image": 0x2111,
+        "weierp": 0x2118,
+        "real": 0x211C,
+        "trade": 0x2122,
+        "alefsym": 0x2135,
+        "larr": 0x2190,
+        "uarr": 0x2191,
+        "rarr": 0x2192,
+        "darr": 0x2193,
+        "harr": 0x2194,
+        "crarr": 0x21B5,
+        "lArr": 0x21D0,
+        "uArr": 0x21D1,
+        "rArr": 0x21D2,
+        "dArr": 0x21D3,
+        "hArr": 0x21D4,
+        "forall": 0x2200,
+        "part": 0x2202,
+        "exist": 0x2203,
+        "empty": 0x2205,
+        "nabla": 0x2207,
+        "isin": 0x2208,
+        "notin": 0x2209,
+        "ni": 0x220B,
+        "prod": 0x220F,
+        "sum": 0x2211,
+        "minus": 0x2212,
+        "lowast": 0x2217,
+        "radic": 0x221A,
+        "prop": 0x221D,
+        "infin": 0x221E,
+        "ang": 0x2220,
+        "and": 0x2227,
+        "or": 0x2228,
+        "cap": 0x2229,
+        "cup": 0x222A,
+        "int": 0x222B,
+        "there4": 0x2234,
+        "sim": 0x223C,
+        "cong": 0x2245,
+        "asymp": 0x2248,
+        "ne": 0x2260,
+        "equiv": 0x2261,
+        "le": 0x2264,
+        "ge": 0x2265,
+        "sub": 0x2282,
+        "sup": 0x2283,
+        "nsub": 0x2284,
+        "sube": 0x2286,
+        "supe": 0x2287,
+        "oplus": 0x2295,
+        "otimes": 0x2297,
+        "perp": 0x22A5,
+        "sdot": 0x22C5,
+        "lceil": 0x2308,
+        "rceil": 0x2309,
+        "lfloor": 0x230A,
+        "rfloor": 0x230B,
+        "lang": 0x2329,
+        "rang": 0x232A,
+        "loz": 0x25CA,
+        "spades": 0x2660,
+        "clubs": 0x2663,
+        "hearts": 0x2665,
+        "diams": 0x2666
+    });
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     function transformES2017(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
-        var currentSourceFileExternalHelpersModuleName;
+        var currentSourceFile;
         var enabledSubstitutions;
-        var applicableSubstitutions;
         var currentSuperContainer;
         var previousOnEmitNode = context.onEmitNode;
         var previousOnSubstituteNode = context.onSubstituteNode;
         context.onEmitNode = onEmitNode;
         context.onSubstituteNode = onSubstituteNode;
-        var currentScope;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            currentSourceFileExternalHelpersModuleName = node.externalHelpersModuleName;
-            return ts.visitEachChild(node, visitor, context);
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 64) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 128) {
-                return ts.visitEachChild(node, visitor, context);
+            if ((node.transformFlags & 16) === 0) {
+                return node;
             }
-            return node;
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 119:
                     return undefined;
@@ -39354,68 +39618,37 @@ var ts;
                 case 185:
                     return visitArrowFunction(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return node;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitAwaitExpression(node) {
             return ts.setOriginalNode(ts.createYield(undefined, ts.visitNode(node.expression, visitor, ts.isExpression), node), node);
         }
         function visitMethodDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            return ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionExpression(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(undefined, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitArrowFunction(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformConciseBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            currentScope = body;
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
             var original = ts.getOriginalNode(node, ts.isFunctionLike);
             var nodeType = original.type;
             var promiseConstructor = languageVersion < 2 ? getPromiseConstructor(nodeType) : undefined;
@@ -39424,52 +39657,49 @@ var ts;
             if (!isArrowFunction) {
                 var statements = [];
                 var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, false, visitor);
-                statements.push(ts.createReturn(ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                ts.addRange(statements, endLexicalEnvironment());
                 var block = ts.createBlock(statements, node.body, true);
                 if (languageVersion >= 2) {
                     if (resolver.getNodeCheckFlags(node) & 4096) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 8);
+                        ts.addEmitHelper(block, advancedAsyncSuperHelper);
                     }
                     else if (resolver.getNodeCheckFlags(node) & 2048) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 4);
+                        ts.addEmitHelper(block, asyncSuperHelper);
                     }
                 }
                 return block;
             }
             else {
-                return ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformConciseBodyWorker(node.body, true));
+                var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
+                }
+                return expression;
             }
         }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
+        function transformFunctionBodyWorker(body, start) {
             if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
+                return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
             }
             else {
                 startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
+                var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
                 var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
+                return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
             }
         }
         function getPromiseConstructor(type) {
-            if (type) {
-                var typeName = ts.getEntityNameFromTypeNode(type);
-                if (typeName && ts.isEntityName(typeName)) {
-                    var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
-                    if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
-                        || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
-                        return typeName;
-                    }
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
                 }
             }
             return undefined;
@@ -39543,14 +39773,15 @@ var ts;
                 || kind === 152;
         }
         function onEmitNode(emitContext, node, emitCallback) {
-            var savedApplicableSubstitutions = applicableSubstitutions;
-            var savedCurrentSuperContainer = currentSuperContainer;
             if (enabledSubstitutions & 1 && isSuperContainer(node)) {
+                var savedCurrentSuperContainer = currentSuperContainer;
                 currentSuperContainer = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSuperContainer = savedCurrentSuperContainer;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
             }
-            previousOnEmitNode(emitContext, node, emitCallback);
-            applicableSubstitutions = savedApplicableSubstitutions;
-            currentSuperContainer = savedCurrentSuperContainer;
         }
         function onSubstituteNode(emitContext, node) {
             node = previousOnSubstituteNode(emitContext, node);
@@ -39573,6 +39804,33 @@ var ts;
         }
     }
     ts.transformES2017 = transformES2017;
+    function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(undefined, ts.createToken(38), undefined, undefined, [], undefined, body);
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072;
+        return ts.createCall(ts.getHelperName("__awaiter"), undefined, [
+            ts.createThis(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    var awaiterHelper = {
+        name: "typescript:awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments)).next());\n                });\n            };"
+    };
+    var asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: "\n            const _super = name => super[name];"
+    };
+    var advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -39586,55 +39844,52 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitor(node) {
-            if (node.transformFlags & 256) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 512) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
+            if ((node.transformFlags & 32) === 0) {
                 return node;
             }
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 192:
                     return visitBinaryExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
                     return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitBinaryExpression(node) {
+            switch (node.operatorToken.kind) {
+                case 61:
+                    return visitExponentiationAssignmentExpression(node);
+                case 39:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
             var left = ts.visitNode(node.left, visitor, ts.isExpression);
             var right = ts.visitNode(node.right, visitor, ts.isExpression);
-            if (node.operatorToken.kind === 61) {
-                var target = void 0;
-                var value = void 0;
-                if (ts.isElementAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
-                    value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
-                }
-                else if (ts.isPropertyAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
-                    value = ts.createPropertyAccess(expressionTemp, left.name, left);
-                }
-                else {
-                    target = left;
-                    value = left;
-                }
-                return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+            if (ts.isElementAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
+                value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
             }
-            else if (node.operatorToken.kind === 39) {
-                return ts.createMathPow(left, right, node);
+            else if (ts.isPropertyAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
+                value = ts.createPropertyAccess(expressionTemp, left.name, left);
             }
             else {
-                ts.Debug.failBadSyntaxKind(node);
-                return ts.visitEachChild(node, visitor, context);
+                target = left;
+                value = left;
             }
+            return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+        }
+        function visitExponentiationExpression(node) {
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, node);
         }
     }
     ts.transformES2016 = transformES2016;
@@ -39642,7 +39897,7 @@ var ts;
 var ts;
 (function (ts) {
     function transformES2015(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var previousOnSubstituteNode = context.onSubstituteNode;
         var previousOnEmitNode = context.onEmitNode;
@@ -39668,7 +39923,11 @@ var ts;
             }
             currentSourceFile = node;
             currentText = node.text;
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            return visited;
         }
         function visitor(node) {
             return saveStateAndInvoke(node, dispatcher);
@@ -39707,6 +39966,38 @@ var ts;
             currentNode = savedCurrentNode;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            if (currentNode) {
+                if (ts.isBlockScope(currentNode, currentParent)) {
+                    enclosingBlockScopeContainer = currentNode;
+                    enclosingBlockScopeContainerParent = currentParent;
+                }
+                if (ts.isFunctionLike(currentNode)) {
+                    enclosingFunction = currentNode;
+                    if (currentNode.kind !== 185) {
+                        enclosingNonArrowFunction = currentNode;
+                        if (!(ts.getEmitFlags(currentNode) & 131072)) {
+                            enclosingNonAsyncFunctionBody = currentNode;
+                        }
+                    }
+                }
+                switch (currentNode.kind) {
+                    case 205:
+                        enclosingVariableStatement = currentNode;
+                        break;
+                    case 224:
+                    case 223:
+                    case 174:
+                    case 172:
+                    case 173:
+                        break;
+                    default:
+                        enclosingVariableStatement = undefined;
+                }
+            }
+            currentParent = currentNode;
+            currentNode = node;
+        }
         function returnCapturedThis(node) {
             return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
         }
@@ -39714,7 +40005,7 @@ var ts;
             return isInConstructorWithCapturedSuper && node.kind === 216 && !node.expression;
         }
         function shouldCheckNode(node) {
-            return (node.transformFlags & 1024) !== 0 ||
+            return (node.transformFlags & 64) !== 0 ||
                 node.kind === 219 ||
                 (ts.isIterationStatement(node, false) && shouldConvertIterationStatementBody(node));
         }
@@ -39725,7 +40016,7 @@ var ts;
             else if (shouldCheckNode(node)) {
                 return visitJavaScript(node);
             }
-            else if (node.transformFlags & 2048 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
+            else if (node.transformFlags & 128 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -39825,14 +40116,14 @@ var ts;
                     return visitTemplateExpression(node);
                 case 195:
                     return visitYieldExpression(node);
+                case 196:
+                    return visitSpreadElement(node);
                 case 96:
                     return visitSuperKeyword();
                 case 195:
                     return ts.visitEachChild(node, visitor, context);
                 case 149:
                     return visitMethodDeclaration(node);
-                case 261:
-                    return visitSourceFileNode(node);
                 case 205:
                     return visitVariableStatement(node);
                 default:
@@ -39840,37 +40131,14 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            if (currentNode) {
-                if (ts.isBlockScope(currentNode, currentParent)) {
-                    enclosingBlockScopeContainer = currentNode;
-                    enclosingBlockScopeContainerParent = currentParent;
-                }
-                if (ts.isFunctionLike(currentNode)) {
-                    enclosingFunction = currentNode;
-                    if (currentNode.kind !== 185) {
-                        enclosingNonArrowFunction = currentNode;
-                        if (!(ts.getEmitFlags(currentNode) & 2097152)) {
-                            enclosingNonAsyncFunctionBody = currentNode;
-                        }
-                    }
-                }
-                switch (currentNode.kind) {
-                    case 205:
-                        enclosingVariableStatement = currentNode;
-                        break;
-                    case 224:
-                    case 223:
-                    case 174:
-                    case 172:
-                    case 173:
-                        break;
-                    default:
-                        enclosingVariableStatement = undefined;
-                }
-            }
-            currentParent = currentNode;
-            currentNode = node;
+        function visitSourceFile(node) {
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
+            addCaptureThisForNodeIfNeeded(statements, node);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            ts.addRange(statements, endLexicalEnvironment());
+            return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
         }
         function visitSwitchStatement(node) {
             ts.Debug.assert(convertedLoopState !== undefined);
@@ -39972,9 +40240,9 @@ var ts;
                 statements.push(exportStatement);
             }
             var emitFlags = ts.getEmitFlags(node);
-            if ((emitFlags & 33554432) === 0) {
+            if ((emitFlags & 2097152) === 0) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(statement, emitFlags | 33554432);
+                ts.setEmitFlags(statement, emitFlags | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -39987,15 +40255,15 @@ var ts;
             }
             var extendsClauseElement = ts.getClassExtendsHeritageClauseElement(node);
             var classFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, extendsClauseElement ? [ts.createParameter(undefined, undefined, undefined, "_super")] : [], undefined, transformClassBody(node, extendsClauseElement));
-            if (ts.getEmitFlags(node) & 524288) {
-                ts.setEmitFlags(classFunction, 524288);
+            if (ts.getEmitFlags(node) & 32768) {
+                ts.setEmitFlags(classFunction, 32768);
             }
             var inner = ts.createPartiallyEmittedExpression(classFunction);
             inner.end = node.end;
-            ts.setEmitFlags(inner, 49152);
+            ts.setEmitFlags(inner, 1536);
             var outer = ts.createPartiallyEmittedExpression(inner);
             outer.end = ts.skipTrivia(currentText, node.pos);
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             return ts.createParen(ts.createCall(outer, undefined, extendsClauseElement
                 ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
                 : []));
@@ -40010,19 +40278,19 @@ var ts;
             var localName = ts.getLocalName(node);
             var outer = ts.createPartiallyEmittedExpression(localName);
             outer.end = closingBraceLocation.end;
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             var statement = ts.createReturn(outer);
             statement.pos = closingBraceLocation.pos;
-            ts.setEmitFlags(statement, 49152 | 12288);
+            ts.setEmitFlags(statement, 1536 | 384);
             statements.push(statement);
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, node.members), undefined, true);
-            ts.setEmitFlags(block, 49152);
+            ts.setEmitFlags(block, 1536);
             return block;
         }
         function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
             if (extendsClauseElement) {
-                statements.push(ts.createStatement(ts.createExtendsHelper(currentSourceFile.externalHelpersModuleName, ts.getLocalName(node)), extendsClauseElement));
+                statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), extendsClauseElement));
             }
         }
         function addConstructor(statements, node, extendsClauseElement) {
@@ -40030,29 +40298,27 @@ var ts;
             var hasSynthesizedSuper = hasSynthesizedDefaultSuperCall(constructor, extendsClauseElement !== undefined);
             var constructorFunction = ts.createFunctionDeclaration(undefined, undefined, undefined, ts.getDeclarationName(node), undefined, transformConstructorParameters(constructor, hasSynthesizedSuper), undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), constructor || node);
             if (extendsClauseElement) {
-                ts.setEmitFlags(constructorFunction, 256);
+                ts.setEmitFlags(constructorFunction, 8);
             }
             statements.push(constructorFunction);
         }
         function transformConstructorParameters(constructor, hasSynthesizedSuper) {
-            if (constructor && !hasSynthesizedSuper) {
-                return ts.visitNodes(constructor.parameters, visitor, ts.isParameter);
-            }
-            return [];
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
             var statements = [];
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = -1;
             if (hasSynthesizedSuper) {
-                statementOffset = 1;
+                statementOffset = 0;
             }
             else if (constructor) {
                 statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, false, visitor);
             }
             if (constructor) {
-                ts.addDefaultValueAssignmentsIfNeeded(statements, constructor, visitor, false);
-                ts.addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+                addDefaultValueAssignmentsIfNeeded(statements, constructor);
+                addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
                 ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
             }
             var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, !!extendsClauseElement, hasSynthesizedSuper, statementOffset);
@@ -40074,7 +40340,7 @@ var ts;
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : node, true);
             if (!constructor) {
-                ts.setEmitFlags(block, 49152);
+                ts.setEmitFlags(block, 1536);
             }
             return block;
         }
@@ -40100,7 +40366,7 @@ var ts;
         function declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, ctor, hasExtendsClause, hasSynthesizedSuper, statementOffset) {
             if (!hasExtendsClause) {
                 if (ctor) {
-                    ts.addCaptureThisForNodeIfNeeded(statements, ctor, enableSubstitutionsForCapturedThis);
+                    addCaptureThisForNodeIfNeeded(statements, ctor);
                 }
                 return 0;
             }
@@ -40109,7 +40375,7 @@ var ts;
                 return 2;
             }
             if (hasSynthesizedSuper) {
-                ts.captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
+                captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
                 enableSubstitutionsForCapturedThis();
                 return 1;
             }
@@ -40129,11 +40395,11 @@ var ts;
                     || superCallExpression.left.kind !== 179) {
                     ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
                 }
-                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 49152)));
+                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536)));
                 statements.push(returnStatement);
                 return 2;
             }
-            ts.captureThisForNode(statements, ctor, superCallExpression, enableSubstitutionsForCapturedThis, firstStatement);
+            captureThisForNode(statements, ctor, superCallExpression, firstStatement);
             if (superCallExpression) {
                 return 1;
             }
@@ -40141,7 +40407,7 @@ var ts;
         }
         function createDefaultSuperCallOrThis() {
             var actualThis = ts.createThis();
-            ts.setEmitFlags(actualThis, 128);
+            ts.setEmitFlags(actualThis, 4);
             var superCall = ts.createFunctionApply(ts.createIdentifier("_super"), actualThis, ts.createIdentifier("arguments"));
             return ts.createLogicalOr(superCall, actualThis);
         }
@@ -40159,6 +40425,86 @@ var ts;
                 return node;
             }
         }
+        function shouldAddDefaultValueAssignments(node) {
+            return (node.transformFlags & 131072) !== 0;
+        }
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!shouldAddDefaultValueAssignments(node)) {
+                return;
+            }
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name_35 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name_35)) {
+                    addDefaultValueAssignmentForBindingPattern(statements, parameter, name_35, initializer);
+                }
+                else if (initializer) {
+                    addDefaultValueAssignmentForInitializer(statements, parameter, name_35, initializer);
+                }
+            }
+        }
+        function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            var temp = ts.getGeneratedNameForNode(parameter);
+            if (name.elements.length > 0) {
+                statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, temp))), 524288));
+            }
+            else if (initializer) {
+                statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288));
+            }
+        }
+        function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
+                ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer)), parameter))
+            ], parameter), 1 | 32 | 384), undefined, parameter);
+            statement.startsOnNewLine = true;
+            ts.setEmitFlags(statement, 384 | 32 | 524288);
+            statements.push(statement);
+        }
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+        }
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return;
+            }
+            var declarationName = ts.getMutableClone(parameter.name);
+            ts.setEmitFlags(declarationName, 48);
+            var expressionName = ts.getSynthesizedClone(parameter.name);
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, undefined, ts.createArrayLiteral([]))
+            ]), parameter), 524288));
+            var forStatement = ts.createFor(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, undefined, ts.createLiteral(restIndex))
+            ], parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), parameter), ts.createPostfixIncrement(temp, parameter), ts.createBlock([
+                ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 524288);
+            ts.startOnNewLine(forStatement);
+            statements.push(forStatement);
+        }
+        function addCaptureThisForNodeIfNeeded(statements, node) {
+            if (node.transformFlags & 32768 && node.kind !== 185) {
+                captureThisForNode(statements, node, ts.createThis());
+            }
+        }
+        function captureThisForNode(statements, node, initializer, originalStatement) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("_this", undefined, initializer)
+            ]), originalStatement);
+            ts.setEmitFlags(captureThisStatement, 1536 | 524288);
+            ts.setSourceMapRange(captureThisStatement, node);
+            statements.push(captureThisStatement);
+        }
         function addClassMembers(statements, node) {
             for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
                 var member = _a[_i];
@@ -40190,33 +40536,34 @@ var ts;
         function transformClassMethodDeclarationToStatement(receiver, member) {
             var commentRange = ts.getCommentRange(member);
             var sourceMapRange = ts.getSourceMapRange(member);
-            var func = transformFunctionLikeToExpression(member, member, undefined);
-            ts.setEmitFlags(func, 49152);
-            ts.setSourceMapRange(func, sourceMapRange);
-            var statement = ts.createStatement(ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name), func), member);
+            var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name);
+            var memberFunction = transformFunctionLikeToExpression(member, member, undefined);
+            ts.setEmitFlags(memberFunction, 1536);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), member);
             ts.setOriginalNode(statement, member);
             ts.setCommentRange(statement, commentRange);
-            ts.setEmitFlags(statement, 1536);
+            ts.setEmitFlags(statement, 48);
             return statement;
         }
         function transformAccessorsToStatement(receiver, accessors) {
             var statement = ts.createStatement(transformAccessorsToExpression(receiver, accessors, false), ts.getSourceMapRange(accessors.firstAccessor));
-            ts.setEmitFlags(statement, 49152);
+            ts.setEmitFlags(statement, 1536);
             return statement;
         }
         function transformAccessorsToExpression(receiver, _a, startsOnNewLine) {
             var firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
             var target = ts.getMutableClone(receiver);
-            ts.setEmitFlags(target, 49152 | 1024);
+            ts.setEmitFlags(target, 1536 | 32);
             ts.setSourceMapRange(target, firstAccessor.name);
             var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
-            ts.setEmitFlags(propertyName, 49152 | 512);
+            ts.setEmitFlags(propertyName, 1536 | 16);
             ts.setSourceMapRange(propertyName, firstAccessor.name);
             var properties = [];
             if (getAccessor) {
                 var getterFunction = transformFunctionLikeToExpression(getAccessor, undefined, undefined);
                 ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
-                ts.setEmitFlags(getterFunction, 16384);
+                ts.setEmitFlags(getterFunction, 512);
                 var getter = ts.createPropertyAssignment("get", getterFunction);
                 ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
                 properties.push(getter);
@@ -40224,7 +40571,7 @@ var ts;
             if (setAccessor) {
                 var setterFunction = transformFunctionLikeToExpression(setAccessor, undefined, undefined);
                 ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
-                ts.setEmitFlags(setterFunction, 16384);
+                ts.setEmitFlags(setterFunction, 512);
                 var setter = ts.createPropertyAssignment("set", setterFunction);
                 ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
                 properties.push(setter);
@@ -40241,28 +40588,91 @@ var ts;
             return call;
         }
         function visitArrowFunction(node) {
-            if (node.transformFlags & 262144) {
+            if (node.transformFlags & 16384) {
                 enableSubstitutionsForCapturedThis();
             }
-            var func = transformFunctionLikeToExpression(node, node, undefined);
-            ts.setEmitFlags(func, 256);
+            var func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node), node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8);
             return func;
         }
         function visitFunctionExpression(node) {
-            return transformFunctionLikeToExpression(node, node, node.name);
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis), node), node);
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformFunctionLikeToExpression(node, location, name) {
             var savedContainingNonArrowFunction = enclosingNonArrowFunction;
             if (node.kind !== 185) {
                 enclosingNonArrowFunction = node;
             }
-            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, saveStateAndInvoke(node, function (node) { return ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis); }), location), node);
+            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, saveStateAndInvoke(node, transformFunctionBody), location), node);
             enclosingNonArrowFunction = savedContainingNonArrowFunction;
             return expression;
         }
+        function transformFunctionBody(node) {
+            var multiLine = false;
+            var singleLine = false;
+            var statementsLocation;
+            var closeBraceLocation;
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
+            }
+            addCaptureThisForNodeIfNeeded(statements, node);
+            addDefaultValueAssignmentsIfNeeded(statements, node);
+            addRestParameterIfNeeded(statements, node, false);
+            if (!multiLine && statements.length > 0) {
+                multiLine = true;
+            }
+            if (ts.isBlock(body)) {
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 185);
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression, body);
+                ts.setEmitFlags(returnStatement, 384 | 32 | 1024);
+                statements.push(returnStatement);
+                closeBraceLocation = body;
+            }
+            var lexicalEnvironment = context.endLexicalEnvironment();
+            ts.addRange(statements, lexicalEnvironment);
+            if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
+                multiLine = true;
+            }
+            var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 17, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
         function visitExpressionStatement(node) {
             switch (node.expression.kind) {
                 case 183:
@@ -40273,19 +40683,20 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitParenthesizedExpression(node, needsDestructuringValue) {
-            if (needsDestructuringValue) {
+            if (!needsDestructuringValue) {
                 switch (node.expression.kind) {
                     case 183:
-                        return ts.createParen(visitParenthesizedExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, false));
                     case 192:
-                        return ts.createParen(visitBinaryExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, false));
                 }
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitBinaryExpression(node, needsDestructuringValue) {
-            ts.Debug.assert(ts.isDestructuringAssignment(node));
-            return ts.flattenDestructuringAssignment(context, node, needsDestructuringValue, hoistVariableDeclaration, visitor);
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, needsDestructuringValue);
+            }
         }
         function visitVariableStatement(node) {
             if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3) == 0) {
@@ -40296,7 +40707,7 @@ var ts;
                     if (decl.initializer) {
                         var assignment = void 0;
                         if (ts.isBindingPattern(decl.name)) {
-                            assignment = ts.flattenVariableDestructuringToExpression(decl, hoistVariableDeclaration, undefined, visitor);
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0);
                         }
                         else {
                             assignment = ts.createBinary(decl.name, 57, ts.visitNode(decl.initializer, visitor, ts.isExpression));
@@ -40323,7 +40734,7 @@ var ts;
             var declarationList = ts.createVariableDeclarationList(declarations, node);
             ts.setOriginalNode(declarationList, node);
             ts.setCommentRange(declarationList, node);
-            if (node.transformFlags & 67108864
+            if (node.transformFlags & 8388608
                 && (ts.isBindingPattern(node.declarations[0].name)
                     || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
                 var firstDeclaration = ts.firstOrUndefined(declarations);
@@ -40356,17 +40767,17 @@ var ts;
                 return visitVariableDeclaration(node);
             }
             if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
-                var clone_5 = ts.getMutableClone(node);
-                clone_5.initializer = ts.createVoidZero();
-                return clone_5;
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitVariableDeclaration(node) {
             if (ts.isBindingPattern(node.name)) {
-                var recordTempVariablesInLine = !enclosingVariableStatement
-                    || !ts.hasModifier(enclosingVariableStatement, 1);
-                return ts.flattenVariableDestructuring(node, undefined, visitor, recordTempVariablesInLine ? undefined : hoistVariableDeclaration);
+                var hoistTempVariables = enclosingVariableStatement
+                    && ts.hasModifier(enclosingVariableStatement, 1);
+                return ts.flattenDestructuringBinding(node, visitor, context, 0, undefined, hoistTempVariables);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -40405,7 +40816,69 @@ var ts;
             return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
         }
         function convertForOfToFor(node, convertedLoopBodyStatements) {
-            return ts.convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, false);
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var initializer = node.initializer;
+            var statements = [];
+            var counter = ts.createLoopVariable();
+            var rhsReference = expression.kind === 70
+                ? ts.createUniqueName(expression.text)
+                : ts.createTempVariable(undefined);
+            var elementAccess = ts.createElementAccess(rhsReference, counter);
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (initializer.flags & 3) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0, elementAccess);
+                    var declarationList = ts.createVariableDeclarationList(declarations, initializer);
+                    ts.setOriginalNode(declarationList, initializer);
+                    var firstDeclaration = declarations[0];
+                    var lastDeclaration = ts.lastOrUndefined(declarations);
+                    ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
+                    statements.push(ts.createVariableStatement(undefined, declarationList));
+                }
+                else {
+                    statements.push(ts.createVariableStatement(undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(undefined), undefined, ts.createElementAccess(rhsReference, counter))
+                    ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                var assignment = ts.createAssignment(initializer, elementAccess);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0)));
+                }
+                else {
+                    assignment.end = initializer.end;
+                    statements.push(ts.createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            var bodyLocation;
+            var statementsLocation;
+            if (convertedLoopBodyStatements) {
+                ts.addRange(statements, convertedLoopBodyStatements);
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                if (ts.isBlock(statement)) {
+                    ts.addRange(statements, statement.statements);
+                    bodyLocation = statement;
+                    statementsLocation = statement.statements;
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+            ts.setEmitFlags(expression, 48 | ts.getEmitFlags(expression));
+            var body = ts.createBlock(ts.createNodeArray(statements, statementsLocation), bodyLocation);
+            ts.setEmitFlags(body, 48 | 384);
+            var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(counter, undefined, ts.createLiteral(0), ts.moveRangePos(node.expression, -1)),
+                ts.createVariableDeclaration(rhsReference, undefined, expression, node.expression)
+            ], node.expression), 1048576), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), node.expression), ts.createPostfixIncrement(counter, node.expression), body, node);
+            ts.setEmitFlags(forStatement, 256);
+            return forStatement;
         }
         function visitObjectLiteralExpression(node) {
             var properties = node.properties;
@@ -40413,7 +40886,7 @@ var ts;
             var numInitialProperties = numProperties;
             for (var i = 0; i < numProperties; i++) {
                 var property = properties[i];
-                if (property.transformFlags & 134217728
+                if (property.transformFlags & 16777216
                     || property.name.kind === 142) {
                     numInitialProperties = i;
                     break;
@@ -40422,7 +40895,7 @@ var ts;
             ts.Debug.assert(numInitialProperties !== numProperties);
             var temp = ts.createTempVariable(hoistVariableDeclaration);
             var expressions = [];
-            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 524288));
+            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 32768));
             if (node.multiLine) {
                 assignment.startsOnNewLine = true;
             }
@@ -40503,26 +40976,26 @@ var ts;
             var currentState = convertedLoopState;
             convertedLoopState = outerConvertedLoopState;
             if (loopOutParameters.length) {
-                var statements_3 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
-                copyOutParameters(loopOutParameters, 1, statements_3);
-                loopBody = ts.createBlock(statements_3, undefined, true);
+                var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
+                copyOutParameters(loopOutParameters, 1, statements_4);
+                loopBody = ts.createBlock(statements_4, undefined, true);
             }
             if (!ts.isBlock(loopBody)) {
                 loopBody = ts.createBlock([loopBody], undefined, true);
             }
             var isAsyncBlockContainingAwait = enclosingNonArrowFunction
-                && (ts.getEmitFlags(enclosingNonArrowFunction) & 2097152) !== 0
-                && (node.statement.transformFlags & 134217728) !== 0;
+                && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072) !== 0
+                && (node.statement.transformFlags & 16777216) !== 0;
             var loopBodyFlags = 0;
             if (currentState.containsLexicalThis) {
-                loopBodyFlags |= 256;
+                loopBodyFlags |= 8;
             }
             if (isAsyncBlockContainingAwait) {
-                loopBodyFlags |= 2097152;
+                loopBodyFlags |= 131072;
             }
             var convertedLoopVariable = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
                 ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, isAsyncBlockContainingAwait ? ts.createToken(38) : undefined, undefined, undefined, loopParameters, undefined, loopBody), loopBodyFlags))
-            ]), 16777216));
+            ]), 1048576));
             var statements = [convertedLoopVariable];
             var extraVariableDeclarations;
             if (currentState.argumentsName) {
@@ -40739,7 +41212,7 @@ var ts;
             ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
             var temp = ts.createTempVariable(undefined);
             var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
-            var vars = ts.flattenVariableDestructuring(node.variableDeclaration, temp, visitor);
+            var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0, temp);
             var list = ts.createVariableDeclarationList(vars, node.variableDeclaration, node.variableDeclaration.flags);
             var destructure = ts.createVariableStatement(undefined, list);
             return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
@@ -40751,7 +41224,7 @@ var ts;
         function visitMethodDeclaration(node) {
             ts.Debug.assert(!ts.isComputedPropertyName(node.name));
             var functionExpression = transformFunctionLikeToExpression(node, ts.moveRangePos(node, -1), undefined);
-            ts.setEmitFlags(functionExpression, 16384 | ts.getEmitFlags(functionExpression));
+            ts.setEmitFlags(functionExpression, 512 | ts.getEmitFlags(functionExpression));
             return ts.createPropertyAssignment(node.name, functionExpression, node);
         }
         function visitShorthandPropertyAssignment(node) {
@@ -40772,10 +41245,10 @@ var ts;
         function visitCallExpressionWithPotentialCapturedThisAssignment(node, assignToCapturedThis) {
             var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             if (node.expression.kind === 96) {
-                ts.setEmitFlags(thisArg, 128);
+                ts.setEmitFlags(thisArg, 4);
             }
             var resultingCall;
-            if (node.transformFlags & 8388608) {
+            if (node.transformFlags & 524288) {
                 resultingCall = ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), ts.visitNode(thisArg, visitor, ts.isExpression), transformAndSpreadElements(node.arguments, false, false, false));
             }
             else {
@@ -40783,7 +41256,7 @@ var ts;
             }
             if (node.expression.kind === 96) {
                 var actualThis = ts.createThis();
-                ts.setEmitFlags(actualThis, 128);
+                ts.setEmitFlags(actualThis, 4);
                 var initializer = ts.createLogicalOr(resultingCall, actualThis);
                 return assignToCapturedThis
                     ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
@@ -40792,7 +41265,7 @@ var ts;
             return resultingCall;
         }
         function visitNewExpression(node) {
-            ts.Debug.assert((node.transformFlags & 8388608) !== 0);
+            ts.Debug.assert((node.transformFlags & 524288) !== 0);
             var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             return ts.createNew(ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), thisArg, transformAndSpreadElements(ts.createNodeArray([ts.createVoidZero()].concat(node.arguments)), false, false, false)), undefined, []);
         }
@@ -40820,6 +41293,9 @@ var ts;
         function visitSpanOfNonSpreads(chunk, multiLine, hasTrailingComma) {
             return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, undefined, hasTrailingComma), visitor, ts.isExpression), undefined, multiLine);
         }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
         function visitExpressionOfSpread(node) {
             return ts.visitNode(node.expression, visitor, ts.isExpression);
         }
@@ -40897,18 +41373,6 @@ var ts;
                 ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
                 : ts.createIdentifier("_super");
         }
-        function visitSourceFileNode(node) {
-            var _a = ts.span(node.statements, ts.isPrologueDirective), prologue = _a[0], remaining = _a[1];
-            var statements = [];
-            startLexicalEnvironment();
-            ts.addRange(statements, prologue);
-            ts.addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-            ts.addRange(statements, ts.visitNodes(ts.createNodeArray(remaining), visitor, ts.isStatement));
-            ts.addRange(statements, endLexicalEnvironment());
-            var clone = ts.getMutableClone(node);
-            clone.statements = ts.createNodeArray(statements, node.statements);
-            return clone;
-        }
         function onEmitNode(emitContext, node, emitCallback) {
             var savedEnclosingFunction = enclosingFunction;
             if (enabledSubstitutions & 1 && ts.isFunctionLike(node)) {
@@ -40988,7 +41452,7 @@ var ts;
         function substituteThisKeyword(node) {
             if (enabledSubstitutions & 1
                 && enclosingFunction
-                && ts.getEmitFlags(enclosingFunction) & 256) {
+                && ts.getEmitFlags(enclosingFunction) & 8) {
                 return ts.createIdentifier("_this", node);
             }
             return node;
@@ -41001,8 +41465,7 @@ var ts;
             if (!constructor || !hasExtendsClause) {
                 return false;
             }
-            var parameter = ts.singleOrUndefined(constructor.parameters);
-            if (!parameter || !ts.nodeIsSynthesized(parameter) || !parameter.dotDotDotToken) {
+            if (ts.some(constructor.parameters)) {
                 return false;
             }
             var statement = ts.firstOrUndefined(constructor.body.statements);
@@ -41022,10 +41485,23 @@ var ts;
                 return false;
             }
             var expression = callArgument.expression;
-            return ts.isIdentifier(expression) && expression === parameter.name;
+            return ts.isIdentifier(expression) && expression.text === "arguments";
         }
     }
     ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(extendsHelper);
+        return ts.createCall(ts.getHelperName("__extends"), undefined, [
+            name,
+            ts.createIdentifier("_super")
+        ]);
+    }
+    var extendsHelper = {
+        name: "typescript:extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -41037,7 +41513,7 @@ var ts;
         _a[7] = "endfinally",
         _a));
     function transformGenerators(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var resolver = context.getEmitResolver();
@@ -41071,15 +41547,15 @@ var ts;
         var withBlockStack;
         return transformSourceFile;
         function transformSourceFile(node) {
-            if (ts.isDeclarationFile(node)) {
+            if (ts.isDeclarationFile(node)
+                || (node.transformFlags & 512) === 0) {
                 return node;
             }
-            if (node.transformFlags & 8192) {
-                currentSourceFile = node;
-                node = ts.visitEachChild(node, visitor, context);
-                currentSourceFile = undefined;
-            }
-            return node;
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
             var transformFlags = node.transformFlags;
@@ -41089,10 +41565,10 @@ var ts;
             else if (inGeneratorFunctionBody) {
                 return visitJavaScriptInGeneratorFunctionBody(node);
             }
-            else if (transformFlags & 4096) {
+            else if (transformFlags & 256) {
                 return visitGenerator(node);
             }
-            else if (transformFlags & 8192) {
+            else if (transformFlags & 512) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -41135,10 +41611,10 @@ var ts;
                 case 216:
                     return visitReturnStatement(node);
                 default:
-                    if (node.transformFlags & 134217728) {
+                    if (node.transformFlags & 16777216) {
                         return visitJavaScriptContainingYield(node);
                     }
-                    else if (node.transformFlags & (8192 | 268435456)) {
+                    else if (node.transformFlags & (512 | 33554432)) {
                         return ts.visitEachChild(node, visitor, context);
                     }
                     else {
@@ -41180,8 +41656,8 @@ var ts;
             }
         }
         function visitFunctionDeclaration(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -41201,8 +41677,8 @@ var ts;
             }
         }
         function visitFunctionExpression(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -41253,7 +41729,7 @@ var ts;
             operationArguments = undefined;
             operationLocations = undefined;
             state = ts.createTempVariable(undefined);
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
             transformAndEmitStatements(body.statements, statementOffset);
             var buildResult = build();
@@ -41275,12 +41751,12 @@ var ts;
             return ts.createBlock(statements, body, body.multiLine);
         }
         function visitVariableStatement(node) {
-            if (node.transformFlags & 134217728) {
+            if (node.transformFlags & 16777216) {
                 transformAndEmitVariableDeclarationList(node.declarationList);
                 return undefined;
             }
             else {
-                if (ts.getEmitFlags(node) & 8388608) {
+                if (ts.getEmitFlags(node) & 524288) {
                     return node;
                 }
                 for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
@@ -41357,10 +41833,10 @@ var ts;
                 else if (node.operatorToken.kind === 25) {
                     return visitCommaExpression(node);
                 }
-                var clone_6 = ts.getMutableClone(node);
-                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
-                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
-                return clone_6;
+                var clone_4 = ts.getMutableClone(node);
+                clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_4;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -41425,26 +41901,30 @@ var ts;
             return createGeneratorResume();
         }
         function visitArrayLiteralExpression(node) {
-            return visitElements(node.elements, node.multiLine);
+            return visitElements(node.elements, undefined, undefined, node.multiLine);
         }
-        function visitElements(elements, _multiLine) {
+        function visitElements(elements, leadingElement, location, multiLine) {
             var numInitialElements = countInitialNodesWithoutYield(elements);
             var temp = declareLocal();
             var hasAssignedTemp = false;
             if (numInitialElements > 0) {
-                emitAssignment(temp, ts.createArrayLiteral(ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements)));
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? [leadingElement].concat(initialElements) : initialElements));
+                leadingElement = undefined;
                 hasAssignedTemp = true;
             }
             var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
             return hasAssignedTemp
-                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                : ts.createArrayLiteral(expressions);
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
             function reduceElement(expressions, element) {
                 if (containsYield(element) && expressions.length > 0) {
                     emitAssignment(temp, hasAssignedTemp
-                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                        : ts.createArrayLiteral(expressions));
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, undefined, multiLine));
                     hasAssignedTemp = true;
+                    leadingElement = undefined;
                     expressions = [];
                 }
                 expressions.push(ts.visitNode(element, visitor, ts.isExpression));
@@ -41478,10 +41958,10 @@ var ts;
         }
         function visitElementAccessExpression(node) {
             if (containsYield(node.argumentExpression)) {
-                var clone_7 = ts.getMutableClone(node);
-                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
-                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
-                return clone_7;
+                var clone_5 = ts.getMutableClone(node);
+                clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_5;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -41495,7 +41975,7 @@ var ts;
         function visitNewExpression(node) {
             if (ts.forEach(node.arguments, containsYield)) {
                 var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
-                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments)), undefined, [], node), node);
+                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, ts.createVoidZero())), undefined, [], node), node);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -41937,7 +42417,7 @@ var ts;
             }
         }
         function containsYield(node) {
-            return node && (node.transformFlags & 134217728) !== 0;
+            return node && (node.transformFlags & 16777216) !== 0;
         }
         function countInitialNodesWithoutYield(nodes) {
             var numNodes = nodes.length;
@@ -41967,12 +42447,12 @@ var ts;
                 if (ts.isIdentifier(original) && original.parent) {
                     var declaration = resolver.getReferencedValueDeclaration(original);
                     if (declaration) {
-                        var name_35 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
-                        if (name_35) {
-                            var clone_8 = ts.getMutableClone(name_35);
-                            ts.setSourceMapRange(clone_8, node);
-                            ts.setCommentRange(clone_8, node);
-                            return clone_8;
+                        var name_36 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
+                        if (name_36) {
+                            var clone_6 = ts.getMutableClone(name_36);
+                            ts.setSourceMapRange(clone_6, node);
+                            ts.setCommentRange(clone_6, node);
+                            return clone_6;
                         }
                     }
                 }
@@ -42363,10 +42843,7 @@ var ts;
             currentExceptionBlock = undefined;
             withBlockStack = undefined;
             var buildResult = buildStatements();
-            return ts.createCall(ts.createHelperName(currentSourceFile.externalHelpersModuleName, "__generator"), undefined, [
-                ts.createThis(),
-                ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 4194304)
-            ]);
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 262144));
         }
         function buildStatements() {
             if (operations) {
@@ -42629,6 +43106,16 @@ var ts;
         }
     }
     ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(generatorHelper);
+        return ts.createCall(ts.getHelperName("__generator"), undefined, [ts.createThis(), body]);
+    }
+    var generatorHelper = {
+        name: "typescript:generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
     var _a;
 })(ts || (ts = {}));
 var ts;
@@ -42680,13 +43167,30 @@ var ts;
 (function (ts) {
     function transformES2015Module(context) {
         var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(261);
+        context.enableSubstitution(70);
+        var currentSourceFile;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
             if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
-                return ts.visitEachChild(node, visitor, context);
+                var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
+                if (externalHelpersModuleName) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologueDirectives(statements, node.statements);
+                    ts.append(statements, ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
             }
             return node;
         }
@@ -42702,6 +43206,32 @@ var ts;
         function visitExportAssignment(node) {
             return node.isExportEquals ? undefined : node;
         }
+        function onEmitNode(emitContext, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSourceFile = undefined;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(emitContext, node) {
+            node = previousOnSubstituteNode(emitContext, node);
+            if (ts.isIdentifier(node) && emitContext === 1) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+            }
+            return node;
+        }
     }
     ts.transformES2015Module = transformES2015Module;
 })(ts || (ts = {}));
@@ -42742,14 +43272,15 @@ var ts;
             var id = ts.getOriginalNodeId(node);
             currentSourceFile = node;
             enclosingBlockScopedContainer = node;
-            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver);
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
             contextObject = ts.createUniqueName("context");
             var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
             var moduleBodyFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
                 ts.createParameter(undefined, undefined, undefined, exportFunction),
                 ts.createParameter(undefined, undefined, undefined, contextObject)
-            ], undefined, createSystemModuleBody(node, dependencyGroups));
+            ], undefined, moduleBodyBlock);
             var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
             var dependencies = ts.createArrayLiteral(ts.map(dependencyGroups, function (dependencyGroup) { return dependencyGroup.name; }));
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray([
@@ -42757,7 +43288,9 @@ var ts;
                     ? [moduleName, dependencies, moduleBodyFunction]
                     : [dependencies, moduleBodyFunction]))
             ], node.statements));
-            ts.setEmitFlags(updated, ts.getEmitFlags(node) & ~1);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
             if (noSubstitution) {
                 noSubstitutionMap[id] = noSubstitution;
                 noSubstitution = undefined;
@@ -42798,6 +43331,7 @@ var ts;
             statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                 ts.createVariableDeclaration("__moduleName", undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
             ])));
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true);
             var executeStatements = ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset);
             ts.addRange(statements, hoistedStatements);
             ts.addRange(statements, endLexicalEnvironment());
@@ -42806,9 +43340,7 @@ var ts;
                 ts.createPropertyAssignment("setters", createSettersArray(exportStarFunction, dependencyGroups)),
                 ts.createPropertyAssignment("execute", ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock(executeStatements, undefined, true)))
             ]), true)));
-            var body = ts.createBlock(statements, undefined, true);
-            ts.setEmitFlags(body, 1);
-            return body;
+            return ts.createBlock(statements, undefined, true);
         }
         function addExportStarIfNeeded(statements) {
             if (!moduleInfo.hasExportStarsToExportValues) {
@@ -42868,7 +43400,7 @@ var ts;
             var exports = ts.createIdentifier("exports");
             var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
             if (localNames) {
-                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createHasOwnProperty(localNames, n)));
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), undefined, [n])));
             }
             return ts.createFunctionDeclaration(undefined, undefined, undefined, exportStarFunction, undefined, [ts.createParameter(undefined, undefined, undefined, m)], undefined, ts.createBlock([
                 ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
@@ -42877,7 +43409,7 @@ var ts;
                 ts.createForIn(ts.createVariableDeclarationList([
                     ts.createVariableDeclaration(n, undefined)
                 ]), m, ts.createBlock([
-                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 32)
+                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1)
                 ])),
                 ts.createStatement(ts.createCall(exportFunction, undefined, [exports]))
             ], undefined, true));
@@ -43049,14 +43581,14 @@ var ts;
             }
         }
         function shouldHoistVariableDeclarationList(node) {
-            return (ts.getEmitFlags(node) & 16777216) === 0
+            return (ts.getEmitFlags(node) & 1048576) === 0
                 && (enclosingBlockScopedContainer.kind === 261
                     || (ts.getOriginalNode(node).flags & 3) === 0);
         }
         function transformInitializedVariable(node, isExportedDeclaration) {
             var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
             return ts.isBindingPattern(node.name)
-                ? ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createAssignment, destructuringVisitor)
+                ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, false, createAssignment)
                 : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
         }
         function createExportedVariableAssignment(name, value, location) {
@@ -43080,7 +43612,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -43197,7 +43729,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value));
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -43241,9 +43773,9 @@ var ts;
                     return visitCatchClause(node);
                 case 204:
                     return visitBlock(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return destructuringVisitor(node);
@@ -43333,11 +43865,11 @@ var ts;
             return node;
         }
         function destructuringVisitor(node) {
-            if (node.transformFlags & 16384
+            if (node.transformFlags & 1024
                 && node.kind === 192) {
                 return visitDestructuringAssignment(node);
             }
-            else if (node.transformFlags & 32768) {
+            else if (node.transformFlags & 2048) {
                 return ts.visitEachChild(node, destructuringVisitor, context);
             }
             else {
@@ -43346,7 +43878,7 @@ var ts;
         }
         function visitDestructuringAssignment(node) {
             if (hasExportedReferenceInDestructuringTarget(node.left)) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, destructuringVisitor);
+                return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, true);
             }
             return ts.visitEachChild(node, destructuringVisitor, context);
         }
@@ -43428,6 +43960,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var importDeclaration = resolver.getReferencedImportDeclaration(node);
                 if (importDeclaration) {
@@ -43520,7 +44059,7 @@ var ts;
             _a[ts.ModuleKind.AMD] = transformAMDModule,
             _a[ts.ModuleKind.UMD] = transformUMDModule,
             _a));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var compilerOptions = context.getCompilerOptions();
         var resolver = context.getEmitResolver();
         var host = context.getEmitHost();
@@ -43549,7 +44088,7 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver);
+            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
             var updated = transformModule(node);
             currentSourceFile = undefined;
@@ -43560,12 +44099,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, false);
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(updated, 2 | ts.getEmitFlags(node));
+                ts.addEmitHelper(updated, exportStarHelper);
             }
             return updated;
         }
@@ -43575,8 +44115,7 @@ var ts;
             return transformAsynchronousModule(node, define, moduleName, true);
         }
         function transformUMDModule(node) {
-            var define = ts.createIdentifier("define");
-            ts.setEmitFlags(define, 16);
+            var define = ts.createRawExpression(umdHelper);
             return transformAsynchronousModule(node, define, undefined, false);
         }
         function transformAsynchronousModule(node, define, moduleName, includeNonAmdDependencies) {
@@ -43613,7 +44152,7 @@ var ts;
                 var externalModuleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
                 var importAliasName = ts.getLocalNameForExternalImport(importNode, currentSourceFile);
                 if (includeNonAmdDependencies && importAliasName) {
-                    ts.setEmitFlags(importAliasName, 128);
+                    ts.setEmitFlags(importAliasName, 4);
                     aliasedModuleNames.push(externalModuleName);
                     importAliasNames.push(ts.createParameter(undefined, undefined, undefined, importAliasName));
                 }
@@ -43627,12 +44166,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, true);
             var body = ts.createBlock(statements, undefined, true);
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(body, 2);
+                ts.addEmitHelper(body, exportStarHelper);
             }
             return body;
         }
@@ -43640,12 +44180,12 @@ var ts;
             if (currentModuleInfo.exportEquals) {
                 if (emitAsReturn) {
                     var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 12288 | 49152);
+                    ts.setEmitFlags(statement, 384 | 1536);
                     statements.push(statement);
                 }
                 else {
                     var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 49152);
+                    ts.setEmitFlags(statement, 1536);
                     statements.push(statement);
                 }
             }
@@ -43666,9 +44206,9 @@ var ts;
                     return visitFunctionDeclaration(node);
                 case 226:
                     return visitClassDeclaration(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return node;
@@ -43859,7 +44399,7 @@ var ts;
         }
         function transformInitializedVariable(node) {
             if (ts.isBindingPattern(node.name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createExportExpression);
+                return ts.flattenDestructuringAssignment(node, undefined, context, 0, false, createExportExpression);
             }
             else {
                 return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, node.name), node.initializer);
@@ -43873,7 +44413,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -43993,7 +44533,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value), location);
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -44060,6 +44600,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
                 if (exportContainer && exportContainer.kind === 261) {
@@ -44071,8 +44618,8 @@ var ts;
                         return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"), node);
                     }
                     else if (ts.isImportSpecifier(importDeclaration)) {
-                        var name_36 = importDeclaration.propertyName || importDeclaration.name;
-                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_36), node);
+                        var name_37 = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_37), node);
                     }
                 }
             }
@@ -44131,6 +44678,12 @@ var ts;
         var _a;
     }
     ts.transformModule = transformModule;
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        scoped: true,
+        text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
+    };
+    var umdHelper = "\n        (function (dependencies, factory) {\n            if (typeof module === 'object' && typeof module.exports === 'object') {\n                var v = factory(require, exports); if (v !== undefined) module.exports = v;\n            }\n            else if (typeof define === 'function' && define.amd) {\n                define(dependencies, factory);\n            }\n        })";
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -44172,21 +44725,27 @@ var ts;
     }
     ts.getTransformers = getTransformers;
     function transformFiles(resolver, host, sourceFiles, transformers) {
+        var enabledSyntaxKindFeatures = new Array(298);
+        var lexicalEnvironmentDisabled = false;
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
         var lexicalEnvironmentVariableDeclarationsStack = [];
         var lexicalEnvironmentFunctionDeclarationsStack = [];
-        var enabledSyntaxKindFeatures = new Array(296);
         var lexicalEnvironmentStackOffset = 0;
-        var hoistedVariableDeclarations;
-        var hoistedFunctionDeclarations;
-        var lexicalEnvironmentDisabled;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
         var context = {
             getCompilerOptions: function () { return host.getCompilerOptions(); },
             getEmitResolver: function () { return resolver; },
             getEmitHost: function () { return host; },
-            hoistVariableDeclaration: hoistVariableDeclaration,
-            hoistFunctionDeclaration: hoistFunctionDeclaration,
             startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
             endLexicalEnvironment: endLexicalEnvironment,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
             onSubstituteNode: function (_emitContext, node) { return node; },
             enableSubstitution: enableSubstitution,
             isSubstitutionEnabled: isSubstitutionEnabled,
@@ -44213,7 +44772,7 @@ var ts;
         }
         function isSubstitutionEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 1) !== 0
-                && (ts.getEmitFlags(node) & 128) === 0;
+                && (ts.getEmitFlags(node) & 4) === 0;
         }
         function emitNodeWithSubstitution(emitContext, node, emitCallback) {
             if (node) {
@@ -44232,7 +44791,7 @@ var ts;
         }
         function isEmitNotificationEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 2) !== 0
-                || (ts.getEmitFlags(node) & 64) !== 0;
+                || (ts.getEmitFlags(node) & 2) !== 0;
         }
         function emitNodeWithNotification(emitContext, node, emitCallback) {
             if (node) {
@@ -44247,39 +44806,51 @@ var ts;
         function hoistVariableDeclaration(name) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
             var decl = ts.createVariableDeclaration(name);
-            if (!hoistedVariableDeclarations) {
-                hoistedVariableDeclarations = [decl];
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
             }
             else {
-                hoistedVariableDeclarations.push(decl);
+                lexicalEnvironmentVariableDeclarations.push(decl);
             }
         }
         function hoistFunctionDeclaration(func) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
-            if (!hoistedFunctionDeclarations) {
-                hoistedFunctionDeclarations = [func];
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
             }
             else {
-                hoistedFunctionDeclarations.push(func);
+                lexicalEnvironmentFunctionDeclarations.push(func);
             }
         }
         function startLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
-            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedVariableDeclarations;
-            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedFunctionDeclarations;
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
             lexicalEnvironmentStackOffset++;
-            hoistedVariableDeclarations = undefined;
-            hoistedFunctionDeclarations = undefined;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+        }
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
         }
         function endLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             var statements;
-            if (hoistedVariableDeclarations || hoistedFunctionDeclarations) {
-                if (hoistedFunctionDeclarations) {
-                    statements = hoistedFunctionDeclarations.slice();
+            if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = lexicalEnvironmentFunctionDeclarations.slice();
                 }
-                if (hoistedVariableDeclarations) {
-                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(hoistedVariableDeclarations));
+                if (lexicalEnvironmentVariableDeclarations) {
+                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                     if (!statements) {
                         statements = [statement];
                     }
@@ -44289,10 +44860,25 @@ var ts;
                 }
             }
             lexicalEnvironmentStackOffset--;
-            hoistedVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
-            hoistedFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+            }
             return statements;
         }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
     }
     ts.transformFiles = transformFiles;
     var _a;
@@ -44461,12 +45047,12 @@ var ts;
                 var emitNode = node.emitNode;
                 var emitFlags = emitNode && emitNode.flags;
                 var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
-                if (node.kind !== 292
-                    && (emitFlags & 512) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 16) === 0
                     && pos >= 0) {
                     emitPos(ts.skipTrivia(currentSourceText, pos));
                 }
-                if (emitFlags & 2048) {
+                if (emitFlags & 64) {
                     disabled = true;
                     emitCallback(emitContext, node);
                     disabled = false;
@@ -44474,8 +45060,8 @@ var ts;
                 else {
                     emitCallback(emitContext, node);
                 }
-                if (node.kind !== 292
-                    && (emitFlags & 1024) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 32) === 0
                     && end >= 0) {
                     emitPos(end);
                 }
@@ -44489,13 +45075,13 @@ var ts;
             var emitFlags = emitNode && emitNode.flags;
             var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
             tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
-            if ((emitFlags & 4096) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 128) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             tokenPos = emitCallback(token, tokenPos);
             if (range)
                 tokenPos = range.end;
-            if ((emitFlags & 8192) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 256) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             return tokenPos;
@@ -44605,7 +45191,7 @@ var ts;
                 var _a = ts.getCommentRange(node), pos = _a.pos, end = _a.end;
                 var emitFlags = ts.getEmitFlags(node);
                 if ((pos < 0 && end < 0) || (pos === end)) {
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -44618,9 +45204,9 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.mark("preEmitNodeWithComment");
                     }
-                    var isEmittedNode = node.kind !== 292;
-                    var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-                    var skipTrailingComments = end < 0 || (emitFlags & 32768) !== 0;
+                    var isEmittedNode = node.kind !== 293;
+                    var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+                    var skipTrailingComments = end < 0 || (emitFlags & 1024) !== 0;
                     if (!skipLeadingComments) {
                         emitLeadingComments(pos, isEmittedNode);
                     }
@@ -44639,7 +45225,7 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.measure("commentTime", "preEmitNodeWithComment");
                     }
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -44668,15 +45254,15 @@ var ts;
             }
             var pos = detachedRange.pos, end = detachedRange.end;
             var emitFlags = ts.getEmitFlags(node);
-            var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-            var skipTrailingComments = disabled || end < 0 || (emitFlags & 32768) !== 0;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+            var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024) !== 0;
             if (!skipLeadingComments) {
                 emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
             }
             if (extendedDiagnostics) {
                 ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
             }
-            if (emitFlags & 65536 && !disabled) {
+            if (emitFlags & 2048 && !disabled) {
                 disabled = true;
                 emitCallback(node);
                 disabled = false;
@@ -45080,15 +45666,15 @@ var ts;
             }
         }
         function emitLines(nodes) {
-            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
-                var node = nodes_2[_i];
+            for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+                var node = nodes_4[_i];
                 emit(node);
             }
         }
         function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
             var currentWriterPos = writer.getTextPos();
-            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
-                var node = nodes_3[_i];
+            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                var node = nodes_5[_i];
                 if (!canEmitFn || canEmitFn(node)) {
                     if (currentWriterPos !== writer.getTextPos()) {
                         write(separator);
@@ -45103,7 +45689,7 @@ var ts;
         }
         function writeJsDocComments(declaration) {
             if (declaration) {
-                var jsDocComments = ts.getJsDocCommentsFromText(declaration, currentText);
+                var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
                 ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
                 ts.emitComments(currentText, currentLineMap, writer, jsDocComments, false, true, newLine, ts.writeCommentRange);
             }
@@ -45290,9 +45876,9 @@ var ts;
             var count = 0;
             while (true) {
                 count++;
-                var name_37 = baseName + "_" + count;
-                if (!(name_37 in currentIdentifiers)) {
-                    return name_37;
+                var name_38 = baseName + "_" + count;
+                if (!(name_38 in currentIdentifiers)) {
+                    return name_38;
                 }
             }
         }
@@ -45686,6 +46272,9 @@ var ts;
                         case 225:
                             diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                             break;
+                        case 228:
+                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                            break;
                         default:
                             ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                     }
@@ -45779,7 +46368,10 @@ var ts;
             var prevEnclosingDeclaration = enclosingDeclaration;
             enclosingDeclaration = node;
             emitTypeParameters(node.typeParameters);
-            emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), false);
+            var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
+            if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
+                emitHeritageClause(interfaceExtendsTypes, false);
+            }
             write(" {");
             writeLine();
             increaseIndent();
@@ -46340,18 +46932,6 @@ var ts;
     function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
         var delimiters = createDelimiterMap();
         var brackets = createBracketsMap();
-        var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n    function __() { this.constructor = d; }\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
-        var assignHelper = "\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n        s = arguments[i];\n        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n            t[p] = s[p];\n    }\n    return t;\n};";
-        var restHelper = "\nvar __rest = (this && this.__rest) || function (s, e) {\n    var t = {};\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && !e.indexOf(p))\n        t[p] = s[p];\n    return t;\n};";
-        var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
-        var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
-        var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n    return function (target, key) { decorator(target, key, paramIndex); }\n};";
-        var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments)).next());\n    });\n};";
-        var generatorHelper = "\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n    return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n    function verb(n) { return function (v) { return step([n, v]); }; }\n    function step(op) {\n        if (f) throw new TypeError(\"Generator is already executing.\");\n        while (_) try {\n            if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n            if (y = 0, t) op = [0, t.value];\n            switch (op[0]) {\n                case 0: case 1: t = op; break;\n                case 4: _.label++; return { value: op[1], done: false };\n                case 5: _.label++; y = op[1]; op = [0]; continue;\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                default:\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                    if (t[2]) _.ops.pop();\n                    _.trys.pop(); continue;\n            }\n            op = body.call(thisArg, _);\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n    }\n};";
-        var exportStarHelper = "\nfunction __export(m) {\n    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}";
-        var umdHelper = "\n(function (dependencies, factory) {\n    if (typeof module === 'object' && typeof module.exports === 'object') {\n        var v = factory(require, exports); if (v !== undefined) module.exports = v;\n    }\n    else if (typeof define === 'function' && define.amd) {\n        define(dependencies, factory);\n    }\n})";
-        var superHelper = "\nconst _super = name => super[name];";
-        var advancedSuperHelper = "\nconst _super = (function (geti, seti) {\n    const cache = Object.create(null);\n    return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n})(name => super[name], (name, value) => super[name] = value);";
         var compilerOptions = host.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var moduleKind = ts.getEmitModuleKind(compilerOptions);
@@ -46373,12 +46953,7 @@ var ts;
         var currentSourceFile;
         var currentText;
         var currentFileIdentifiers;
-        var extendsEmitted;
-        var assignEmitted;
-        var restEmitted;
-        var decorateEmitted;
-        var paramEmitted;
-        var awaiterEmitted;
+        var bundledHelpers;
         var isOwnFileEmit;
         var emitSkipped = false;
         var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
@@ -46427,11 +47002,12 @@ var ts;
             nodeIdToGeneratedName = [];
             autoGeneratedIdToGeneratedName = [];
             generatedNameSet = ts.createMap();
+            bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
             isOwnFileEmit = !isBundledEmit;
             if (isBundledEmit && moduleKind) {
                 for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                     var sourceFile = sourceFiles_5[_a];
-                    emitEmitHelpers(sourceFile);
+                    emitHelpers(sourceFile, true);
                 }
             }
             ts.forEach(sourceFiles, printSourceFile);
@@ -46441,23 +47017,18 @@ var ts;
                 write("//# " + "sourceMappingURL" + "=" + sourceMappingURL);
             }
             if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
-                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false);
+                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false, sourceFiles);
             }
             if (sourceMapDataList) {
                 sourceMapDataList.push(sourceMap.getSourceMapData());
             }
-            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM);
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
             sourceMap.reset();
             comments.reset();
             writer.reset();
             tempFlags = 0;
             currentSourceFile = undefined;
             currentText = undefined;
-            extendsEmitted = false;
-            assignEmitted = false;
-            decorateEmitted = false;
-            paramEmitted = false;
-            awaiterEmitted = false;
             isOwnFileEmit = false;
         }
         function printSourceFile(node) {
@@ -46825,8 +47396,10 @@ var ts;
                     return emitJsxElement(node);
                 case 247:
                     return emitJsxSelfClosingElement(node);
-                case 293:
+                case 294:
                     return emitPartiallyEmittedExpression(node);
+                case 297:
+                    return writeLines(node.text);
             }
         }
         function emitNumericLiteral(node) {
@@ -46846,12 +47419,7 @@ var ts;
             }
         }
         function emitIdentifier(node) {
-            if (ts.getEmitFlags(node) & 16) {
-                writeLines(umdHelper);
-            }
-            else {
-                write(getTextOfNode(node, false));
-            }
+            write(getTextOfNode(node, false));
         }
         function emitQualifiedName(node) {
             emitEntityName(node.left);
@@ -47094,7 +47662,7 @@ var ts;
                 write("{}");
             }
             else {
-                var indentedFlag = ts.getEmitFlags(node) & 524288;
+                var indentedFlag = ts.getEmitFlags(node) & 32768;
                 if (indentedFlag) {
                     increaseIndent();
                 }
@@ -47109,7 +47677,7 @@ var ts;
         function emitPropertyAccessExpression(node) {
             var indentBeforeDot = false;
             var indentAfterDot = false;
-            if (!(ts.getEmitFlags(node) & 1048576)) {
+            if (!(ts.getEmitFlags(node) & 65536)) {
                 var dotRangeStart = node.expression.end;
                 var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
                 var dotToken = { kind: 22, pos: dotRangeStart, end: dotRangeEnd };
@@ -47293,7 +47861,7 @@ var ts;
             }
         }
         function emitBlockStatements(node) {
-            if (ts.getEmitFlags(node) & 32) {
+            if (ts.getEmitFlags(node) & 1) {
                 emitList(node, node.statements, 384);
             }
             else {
@@ -47469,11 +48037,11 @@ var ts;
             var body = node.body;
             if (body) {
                 if (ts.isBlock(body)) {
-                    var indentedFlag = ts.getEmitFlags(node) & 524288;
+                    var indentedFlag = ts.getEmitFlags(node) & 32768;
                     if (indentedFlag) {
                         increaseIndent();
                     }
-                    if (ts.getEmitFlags(node) & 4194304) {
+                    if (ts.getEmitFlags(node) & 262144) {
                         emitSignatureHead(node);
                         emitBlockFunctionBody(body);
                     }
@@ -47505,7 +48073,7 @@ var ts;
             emitWithPrefix(": ", node.type);
         }
         function shouldEmitBlockFunctionBodyOnSingleLine(body) {
-            if (ts.getEmitFlags(body) & 32) {
+            if (ts.getEmitFlags(body) & 1) {
                 return true;
             }
             if (body.multiLine) {
@@ -47560,7 +48128,7 @@ var ts;
             emitModifiers(node, node.modifiers);
             write("class");
             emitNodeWithPrefix(" ", node.name, emitIdentifierName);
-            var indentedFlag = ts.getEmitFlags(node) & 524288;
+            var indentedFlag = ts.getEmitFlags(node) & 32768;
             if (indentedFlag) {
                 increaseIndent();
             }
@@ -47819,7 +48387,7 @@ var ts;
             emit(node.name);
             write(": ");
             var initializer = node.initializer;
-            if ((ts.getEmitFlags(initializer) & 16384) === 0) {
+            if ((ts.getEmitFlags(initializer) & 512) === 0) {
                 var commentRange = ts.getCommentRange(initializer);
                 emitTrailingCommentsOfPosition(commentRange.pos);
             }
@@ -47873,71 +48441,31 @@ var ts;
             }
             return statements.length;
         }
-        function emitHelpers(node) {
-            var emitFlags = ts.getEmitFlags(node);
-            var helpersEmitted = false;
-            if (emitFlags & 1) {
-                helpersEmitted = emitEmitHelpers(currentSourceFile);
-            }
-            if (emitFlags & 2) {
-                writeLines(exportStarHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 4) {
-                writeLines(superHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 8) {
-                writeLines(advancedSuperHelper);
-                helpersEmitted = true;
-            }
-            return helpersEmitted;
-        }
-        function emitEmitHelpers(node) {
-            if (compilerOptions.noEmitHelpers) {
-                return false;
-            }
-            if (compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                return false;
-            }
+        function emitHelpers(node, isBundle) {
+            var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
+            var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
+            var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
             var helpersEmitted = false;
-            if ((languageVersion < 2) && (!extendsEmitted && node.flags & 1024)) {
-                writeLines(extendsHelper);
-                extendsEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 5 || currentSourceFile.scriptKind === 2 || currentSourceFile.scriptKind === 4) &&
-                compilerOptions.jsx !== 1 &&
-                !assignEmitted &&
-                node.flags & 16384) {
-                writeLines(assignHelper);
-                assignEmitted = true;
-            }
-            if (languageVersion < 5 && !restEmitted && node.flags & 32768) {
-                writeLines(restHelper);
-                restEmitted = true;
-            }
-            if (!decorateEmitted && node.flags & 2048) {
-                writeLines(decorateHelper);
-                if (compilerOptions.emitDecoratorMetadata) {
-                    writeLines(metadataHelper);
-                }
-                decorateEmitted = true;
-                helpersEmitted = true;
-            }
-            if (!paramEmitted && node.flags & 4096) {
-                writeLines(paramHelper);
-                paramEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 4) && (!awaiterEmitted && node.flags & 8192)) {
-                writeLines(awaiterHelper);
-                if (languageVersion < 2) {
-                    writeLines(generatorHelper);
+            var helpers = ts.getEmitHelpers(node);
+            if (helpers) {
+                for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
+                    var helper = _b[_a];
+                    if (!helper.scoped) {
+                        if (shouldSkip)
+                            continue;
+                        if (shouldBundle) {
+                            if (bundledHelpers[helper.name]) {
+                                continue;
+                            }
+                            bundledHelpers[helper.name] = true;
+                        }
+                    }
+                    else if (isBundle) {
+                        continue;
+                    }
+                    writeLines(helper.text);
+                    helpersEmitted = true;
                 }
-                awaiterEmitted = true;
-                helpersEmitted = true;
             }
             if (helpersEmitted) {
                 writeLine();
@@ -47945,9 +48473,10 @@ var ts;
             return helpersEmitted;
         }
         function writeLines(text) {
-            var lines = text.split(/\r\n|\r|\n/g);
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = guessIndentation(lines);
             for (var i = 0; i < lines.length; i++) {
-                var line = lines[i];
+                var line = indentation ? lines[i].slice(indentation) : lines[i];
                 if (line.length) {
                     if (i > 0) {
                         writeLine();
@@ -47956,6 +48485,21 @@ var ts;
                 }
             }
         }
+        function guessIndentation(lines) {
+            var indentation;
+            for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
+                var line = lines_1[_a];
+                for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
+                    if (!ts.isWhiteSpace(line.charCodeAt(i))) {
+                        if (indentation === undefined || i < indentation) {
+                            indentation = i;
+                            break;
+                        }
+                    }
+                }
+            }
+            return indentation;
+        }
         function emitShebang() {
             var shebang = ts.getShebang(currentText);
             if (shebang) {
@@ -48297,21 +48841,21 @@ var ts;
         }
         function makeTempVariableName(flags) {
             if (flags && !(tempFlags & flags)) {
-                var name_38 = flags === 268435456 ? "_i" : "_n";
-                if (isUniqueName(name_38)) {
+                var name_39 = flags === 268435456 ? "_i" : "_n";
+                if (isUniqueName(name_39)) {
                     tempFlags |= flags;
-                    return name_38;
+                    return name_39;
                 }
             }
             while (true) {
                 var count = tempFlags & 268435455;
                 tempFlags++;
                 if (count !== 8 && count !== 13) {
-                    var name_39 = count < 26
+                    var name_40 = count < 26
                         ? "_" + String.fromCharCode(97 + count)
                         : "_" + (count - 26);
-                    if (isUniqueName(name_39)) {
-                        return name_39;
+                    if (isUniqueName(name_40)) {
+                        return name_40;
                     }
                 }
             }
@@ -48432,7 +48976,6 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.2.0-dev.20161115";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -48648,10 +49191,10 @@ var ts;
         var resolutions = [];
         var cache = ts.createMap();
         for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
-            var name_40 = names_1[_i];
-            var result = name_40 in cache
-                ? cache[name_40]
-                : cache[name_40] = loader(name_40, containingFile);
+            var name_41 = names_1[_i];
+            var result = name_41 in cache
+                ? cache[name_41]
+                : cache[name_41] = loader(name_41, containingFile);
             resolutions.push(result);
         }
         return resolutions;
@@ -48705,7 +49248,8 @@ var ts;
             ts.forEach(rootNames, function (name) { return processRootFile(name, false); });
             var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
             if (typeReferences.length) {
-                var containingFilename = ts.combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
                 var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (var i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);
@@ -49185,8 +49729,8 @@ var ts;
                             }
                             break;
                     }
-                    for (var _b = 0, nodes_4 = nodes; _b < nodes_4.length; _b++) {
-                        var node = nodes_4[_b];
+                    for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
+                        var node = nodes_6[_b];
                         walk(node);
                     }
                 }
@@ -50206,12 +50750,16 @@ var ts;
             description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
         }
     ];
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -50235,6 +50783,18 @@ var ts;
         sourceMap: false,
     };
     var optionNameMapCache;
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -50448,9 +51008,9 @@ var ts;
         function serializeCompilerOptions(options) {
             var result = ts.createMap();
             var optionsNameMap = getOptionNameMap().optionNameMap;
-            for (var name_41 in options) {
-                if (ts.hasProperty(options, name_41)) {
-                    switch (name_41) {
+            for (var name_42 in options) {
+                if (ts.hasProperty(options, name_42)) {
+                    switch (name_42) {
                         case "init":
                         case "watch":
                         case "version":
@@ -50458,12 +51018,12 @@ var ts;
                         case "project":
                             break;
                         default:
-                            var value = options[name_41];
-                            var optionDefinition = optionsNameMap[name_41.toLowerCase()];
+                            var value = options[name_42];
+                            var optionDefinition = optionsNameMap[name_42.toLowerCase()];
                             if (optionDefinition) {
                                 var customTypeMap = getCustomTypeMapOfCommandLineOption(optionDefinition);
                                 if (!customTypeMap) {
-                                    result[name_41] = value;
+                                    result[name_42] = value;
                                 }
                                 else {
                                     if (optionDefinition.type === "list") {
@@ -50472,10 +51032,10 @@ var ts;
                                             var element = _a[_i];
                                             convertedValue.push(getNameOfCompilerOptionValue(element, customTypeMap));
                                         }
-                                        result[name_41] = convertedValue;
+                                        result[name_42] = convertedValue;
                                     }
                                     else {
-                                        result[name_41] = getNameOfCompilerOptionValue(value, customTypeMap);
+                                        result[name_42] = getNameOfCompilerOptionValue(value, customTypeMap);
                                     }
                                 }
                             }
@@ -50514,14 +51074,15 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -50548,7 +51109,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -50556,7 +51117,7 @@ var ts;
         };
         function tryExtendsName(extendedConfig) {
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -50619,7 +51180,7 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -50654,12 +51215,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -50667,9 +51228,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -50899,47 +51461,6 @@ var ts;
             ts.sys.write("TSFILE: " + filepath + ts.sys.newLine);
         }
     }
-    function validateLocaleAndSetLanguage(locale, errors) {
-        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
-        if (!matchResult) {
-            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
-            return false;
-        }
-        var language = matchResult[1];
-        var territory = matchResult[3];
-        if (!trySetLanguageAndTerritory(language, territory, errors)) {
-            trySetLanguageAndTerritory(language, undefined, errors);
-        }
-        return true;
-    }
-    function trySetLanguageAndTerritory(language, territory, errors) {
-        var compilerFilePath = ts.normalizePath(ts.sys.getExecutingFilePath());
-        var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
-        var filePath = ts.combinePaths(containingDirectoryPath, language);
-        if (territory) {
-            filePath = filePath + "-" + territory;
-        }
-        filePath = ts.sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
-        if (!ts.sys.fileExists(filePath)) {
-            return false;
-        }
-        var fileContents = "";
-        try {
-            fileContents = ts.sys.readFile(filePath);
-        }
-        catch (e) {
-            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
-            return false;
-        }
-        try {
-            ts.localizedDiagnosticMessages = JSON.parse(fileContents);
-        }
-        catch (e) {
-            errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
-            return false;
-        }
-        return true;
-    }
     function countLines(program) {
         var count = 0;
         ts.forEach(program.getSourceFiles(), function (file) {
@@ -51068,7 +51589,7 @@ var ts;
                 reportDiagnostic(ts.createCompilerDiagnostic(ts.Diagnostics.The_current_host_does_not_support_the_0_option, "--locale"), undefined);
                 return ts.sys.exit(ts.ExitStatus.DiagnosticsPresent_OutputsSkipped);
             }
-            validateLocaleAndSetLanguage(commandLine.options.locale, commandLine.errors);
+            ts.validateLocaleAndSetLanguage(commandLine.options.locale, ts.sys, commandLine.errors);
         }
         if (commandLine.errors.length > 0) {
             reportDiagnostics(commandLine.errors, compilerHost);
@@ -51363,17 +51884,17 @@ var ts;
             var nameSize = 0;
             var valueSize = 0;
             for (var _i = 0, statistics_1 = statistics; _i < statistics_1.length; _i++) {
-                var _a = statistics_1[_i], name_42 = _a.name, value = _a.value;
-                if (name_42.length > nameSize) {
-                    nameSize = name_42.length;
+                var _a = statistics_1[_i], name_43 = _a.name, value = _a.value;
+                if (name_43.length > nameSize) {
+                    nameSize = name_43.length;
                 }
                 if (value.length > valueSize) {
                     valueSize = value.length;
                 }
             }
             for (var _b = 0, statistics_2 = statistics; _b < statistics_2.length; _b++) {
-                var _c = statistics_2[_b], name_43 = _c.name, value = _c.value;
-                ts.sys.write(padRight(name_43 + ":", nameSize + 2) + padLeft(value.toString(), valueSize) + ts.sys.newLine);
+                var _c = statistics_2[_b], name_44 = _c.name, value = _c.value;
+                ts.sys.write(padRight(name_44 + ":", nameSize + 2) + padLeft(value.toString(), valueSize) + ts.sys.newLine);
             }
         }
         function reportStatisticalValue(name, value) {
diff --git a/node_modules/typescript/lib/tsserver.js b/node_modules/typescript/lib/tsserver.js
index 6d38bc71d..51ba6b309 100644
--- a/node_modules/typescript/lib/tsserver.js
+++ b/node_modules/typescript/lib/tsserver.js
@@ -137,6 +137,9 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+(function (ts) {
     var createObject = Object.create;
     ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
     function createMap(template) {
@@ -606,7 +609,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -621,6 +624,14 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; })
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
+            .map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -775,6 +786,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -1227,6 +1247,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
         for (var i = 0; i < str.length; i++) {
@@ -1777,6 +1805,16 @@ var ts;
         }
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
     function orderedRemoveItemAt(array, index) {
         for (var i = index; i < array.length - 1; i++) {
             array[i] = array[i + 1];
@@ -2811,7 +2849,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -2876,7 +2914,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -2947,6 +2986,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -3161,9 +3201,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -3175,6 +3215,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 var ts;
@@ -5176,12 +5219,16 @@ var ts;
             description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
         }
     ];
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -5205,6 +5252,18 @@ var ts;
         sourceMap: false,
     };
     var optionNameMapCache;
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -5484,14 +5543,15 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -5518,7 +5578,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -5526,7 +5586,7 @@ var ts;
         };
         function tryExtendsName(extendedConfig) {
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -5589,7 +5649,7 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -5624,12 +5684,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -5637,9 +5697,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -5858,9 +5919,9 @@ var ts;
             "constants", "process", "v8", "timers", "console"
         ];
         var nodeCoreModules = ts.arrayToMap(JsTyping.nodeCoreModuleList, function (x) { return x; });
-        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typingOptions, unresolvedImports) {
+        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typeAcquisition, unresolvedImports) {
             var inferredTypings = ts.createMap();
-            if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+            if (!typeAcquisition || !typeAcquisition.enable) {
                 return { cachedTypingPaths: [], newTypingNames: [], filesToWatch: [] };
             }
             fileNames = ts.filter(ts.map(fileNames, ts.normalizePath), function (f) {
@@ -5874,8 +5935,8 @@ var ts;
             var filesToWatch = [];
             var searchDirs = [];
             var exclude = [];
-            mergeTypings(typingOptions.include);
-            exclude = typingOptions.exclude || [];
+            mergeTypings(typeAcquisition.include);
+            exclude = typeAcquisition.exclude || [];
             var possibleSearchDirs = ts.map(fileNames, ts.getDirectoryPath);
             if (projectRootPath) {
                 possibleSearchDirs.push(projectRootPath);
@@ -6057,12 +6118,12 @@ var ts;
                     return project.projectService.host.fileExists(projectName) ? ts.getDirectoryPath(projectName) : projectName;
             }
         }
-        function createInstallTypingsRequest(project, typingOptions, unresolvedImports, cachePath) {
+        function createInstallTypingsRequest(project, typeAcquisition, unresolvedImports, cachePath) {
             return {
                 projectName: project.getProjectName(),
                 fileNames: project.getFileNames(true),
                 compilerOptions: project.getCompilerOptions(),
-                typingOptions: typingOptions,
+                typeAcquisition: typeAcquisition,
                 unresolvedImports: unresolvedImports,
                 projectRootPath: getProjectRootPath(project),
                 cachePath: cachePath,
@@ -6249,6 +6310,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -6982,28 +7044,28 @@ var ts;
         return !nodeIsMissing(node);
     }
     ts.nodeIsPresent = nodeIsPresent;
-    function getTokenPosOfNode(node, sourceFile, includeJsDocComment) {
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
         if (nodeIsMissing(node)) {
             return node.pos;
         }
         if (isJSDocNode(node)) {
             return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, false, true);
         }
-        if (includeJsDocComment && node.jsDocComments && node.jsDocComments.length > 0) {
-            return getTokenPosOfNode(node.jsDocComments[0]);
+        if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
+            return getTokenPosOfNode(node.jsDoc[0]);
         }
-        if (node.kind === 291 && node._children.length > 0) {
-            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDocComment);
+        if (node.kind === 292 && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
         }
         return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
     }
     ts.getTokenPosOfNode = getTokenPosOfNode;
     function isJSDocNode(node) {
-        return node.kind >= 262 && node.kind <= 287;
+        return node.kind >= 262 && node.kind <= 288;
     }
     ts.isJSDocNode = isJSDocNode;
     function isJSDocTag(node) {
-        return node.kind >= 278 && node.kind <= 290;
+        return node.kind >= 278 && node.kind <= 291;
     }
     ts.isJSDocTag = isJSDocTag;
     function getNonDecoratorTokenPosOfNode(node, sourceFile) {
@@ -7180,7 +7242,7 @@ var ts;
             case 8:
                 return name.text;
             case 142:
-                if (isStringOrNumericLiteral(name.expression.kind)) {
+                if (isStringOrNumericLiteral(name.expression)) {
                     return name.expression.text;
                 }
         }
@@ -7302,7 +7364,8 @@ var ts;
     }
     ts.isSuperCall = isSuperCall;
     function isPrologueDirective(node) {
-        return node.kind === 207 && node.expression.kind === 9;
+        return node.kind === 207
+            && node.expression.kind === 9;
     }
     ts.isPrologueDirective = isPrologueDirective;
     function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
@@ -7313,25 +7376,20 @@ var ts;
         return ts.getLeadingCommentRanges(text, node.pos);
     }
     ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
-    function getJsDocComments(node, sourceFileOfNode) {
-        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
-    }
-    ts.getJsDocComments = getJsDocComments;
-    function getJsDocCommentsFromText(node, text) {
+    function getJSDocCommentRanges(node, text) {
         var commentRanges = (node.kind === 144 ||
             node.kind === 143 ||
             node.kind === 184 ||
             node.kind === 185) ?
             ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
             getLeadingCommentRangesOfNodeFromText(node, text);
-        return ts.filter(commentRanges, isJsDocComment);
-        function isJsDocComment(comment) {
+        return ts.filter(commentRanges, function (comment) {
             return text.charCodeAt(comment.pos + 1) === 42 &&
                 text.charCodeAt(comment.pos + 2) === 42 &&
                 text.charCodeAt(comment.pos + 3) !== 47;
-        }
+        });
     }
-    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
     ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
@@ -7857,6 +7915,7 @@ var ts;
                     case 145:
                     case 252:
                     case 251:
+                    case 259:
                         return true;
                     case 199:
                         return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
@@ -8011,152 +8070,118 @@ var ts;
             node.parameters[0].type.kind === 276;
     }
     ts.isJSDocConstructSignature = isJSDocConstructSignature;
-    function getJSDocTag(node, kind, checkParentVariableStatement) {
-        if (!node) {
-            return undefined;
-        }
-        var jsDocTags = getJSDocTags(node, checkParentVariableStatement);
-        if (!jsDocTags) {
-            return undefined;
-        }
-        for (var _i = 0, jsDocTags_1 = jsDocTags; _i < jsDocTags_1.length; _i++) {
-            var tag = jsDocTags_1[_i];
-            if (tag.kind === kind) {
-                return tag;
-            }
-        }
+    function getCommentsFromJSDoc(node) {
+        return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
     }
-    function append(previous, additional) {
-        if (additional) {
-            if (!previous) {
-                previous = [];
-            }
-            for (var _i = 0, additional_1 = additional; _i < additional_1.length; _i++) {
-                var x = additional_1[_i];
-                previous.push(x);
-            }
-        }
-        return previous;
-    }
-    function getJSDocComments(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) { return ts.map(docs, function (doc) { return doc.comment; }); }, function (tags) { return ts.map(tags, function (tag) { return tag.comment; }); });
-    }
-    ts.getJSDocComments = getJSDocComments;
-    function getJSDocTags(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) {
+    ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
+    function getJSDocTags(node, kind) {
+        var docs = getJSDocs(node);
+        if (docs) {
             var result = [];
             for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                 var doc = docs_1[_i];
-                if (doc.tags) {
-                    result.push.apply(result, doc.tags);
+                if (doc.kind === 281) {
+                    if (doc.kind === kind) {
+                        result.push(doc);
+                    }
+                }
+                else {
+                    result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
                 }
             }
             return result;
-        }, function (tags) { return tags; });
-    }
-    function getJSDocs(node, checkParentVariableStatement, getDocs, getTags) {
-        var result = undefined;
-        if (checkParentVariableStatement) {
-            var isInitializerOfVariableDeclarationInStatement = isVariableLike(node.parent) &&
-                (node.parent).initializer === node &&
-                node.parent.parent.parent.kind === 205;
+        }
+    }
+    function getFirstJSDocTag(node, kind) {
+        return node && ts.firstOrUndefined(getJSDocTags(node, kind));
+    }
+    function getJSDocs(node) {
+        var cache = node.jsDocCache;
+        if (!cache) {
+            getJSDocsWorker(node);
+            node.jsDocCache = cache;
+        }
+        return cache;
+        function getJSDocsWorker(node) {
+            var parent = node.parent;
+            var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
+                parent.initializer === node &&
+                parent.parent.parent.kind === 205;
             var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
-                node.parent.parent.kind === 205;
-            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent :
-                isVariableOfVariableDeclarationStatement ? node.parent.parent :
+                parent.parent.kind === 205;
+            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
+                isVariableOfVariableDeclarationStatement ? parent.parent :
                     undefined;
             if (variableStatementNode) {
-                result = append(result, getJSDocs(variableStatementNode, checkParentVariableStatement, getDocs, getTags));
-            }
-            if (node.kind === 230 &&
-                node.parent && node.parent.kind === 230) {
-                result = append(result, getJSDocs(node.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(variableStatementNode);
             }
-            var parent_4 = node.parent;
-            var isSourceOfAssignmentExpressionStatement = parent_4 && parent_4.parent &&
-                parent_4.kind === 192 &&
-                parent_4.operatorToken.kind === 57 &&
-                parent_4.parent.kind === 207;
+            var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
+                parent.kind === 192 &&
+                parent.operatorToken.kind === 57 &&
+                parent.parent.kind === 207;
             if (isSourceOfAssignmentExpressionStatement) {
-                result = append(result, getJSDocs(parent_4.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(parent.parent);
             }
-            var isPropertyAssignmentExpression = parent_4 && parent_4.kind === 257;
-            if (isPropertyAssignmentExpression) {
-                result = append(result, getJSDocs(parent_4, checkParentVariableStatement, getDocs, getTags));
+            var isModuleDeclaration = node.kind === 230 &&
+                parent && parent.kind === 230;
+            var isPropertyAssignmentExpression = parent && parent.kind === 257;
+            if (isModuleDeclaration || isPropertyAssignmentExpression) {
+                getJSDocsWorker(parent);
             }
             if (node.kind === 144) {
-                var paramTags = getJSDocParameterTag(node, checkParentVariableStatement);
-                if (paramTags) {
-                    result = append(result, getTags(paramTags));
-                }
-            }
-        }
-        if (isVariableLike(node) && node.initializer) {
-            result = append(result, getJSDocs(node.initializer, false, getDocs, getTags));
-        }
-        if (node.jsDocComments) {
-            if (result) {
-                result = append(result, getDocs(node.jsDocComments));
+                cache = ts.concatenate(cache, getJSDocParameterTags(node));
             }
-            else {
-                return getDocs(node.jsDocComments);
+            if (isVariableLike(node) && node.initializer) {
+                cache = ts.concatenate(cache, node.initializer.jsDoc);
             }
+            cache = ts.concatenate(cache, node.jsDoc);
         }
-        return result;
     }
-    function getJSDocParameterTag(param, checkParentVariableStatement) {
+    function getJSDocParameterTags(param) {
+        if (!isParameter(param)) {
+            return undefined;
+        }
         var func = param.parent;
-        var tags = getJSDocTags(func, checkParentVariableStatement);
+        var tags = getJSDocTags(func, 281);
         if (!param.name) {
             var i = func.parameters.indexOf(param);
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280; });
+            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281; });
             if (paramTags && 0 <= i && i < paramTags.length) {
                 return [paramTags[i]];
             }
         }
         else if (param.name.kind === 70) {
             var name_8 = param.name.text;
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 && tag.parameterName.text === name_8; });
-            if (paramTags) {
-                return paramTags;
-            }
+            return ts.filter(tags, function (tag) { return tag.kind === 281 && tag.parameterName.text === name_8; });
         }
         else {
             return undefined;
         }
     }
-    function getJSDocTypeTag(node) {
-        return getJSDocTag(node, 282, false);
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, 283);
+        if (!tag && node.kind === 144) {
+            var paramTags = getJSDocParameterTags(node);
+            if (paramTags) {
+                tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
+            }
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
+    }
+    ts.getJSDocType = getJSDocType;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, 280);
     }
-    ts.getJSDocTypeTag = getJSDocTypeTag;
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
     function getJSDocReturnTag(node) {
-        return getJSDocTag(node, 281, true);
+        return getFirstJSDocTag(node, 282);
     }
     ts.getJSDocReturnTag = getJSDocReturnTag;
     function getJSDocTemplateTag(node) {
-        return getJSDocTag(node, 283, false);
+        return getFirstJSDocTag(node, 284);
     }
     ts.getJSDocTemplateTag = getJSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter) {
-        if (parameter.name && parameter.name.kind === 70) {
-            var parameterName = parameter.name.text;
-            var jsDocTags = getJSDocTags(parameter.parent, true);
-            if (!jsDocTags) {
-                return undefined;
-            }
-            for (var _i = 0, jsDocTags_2 = jsDocTags; _i < jsDocTags_2.length; _i++) {
-                var tag = jsDocTags_2[_i];
-                if (tag.kind === 280) {
-                    var parameterTag = tag;
-                    if (parameterTag.parameterName.text === parameterName) {
-                        return parameterTag;
-                    }
-                }
-            }
-        }
-        return undefined;
-    }
-    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
     function hasRestParameter(s) {
         return isRestParameter(ts.lastOrUndefined(s.parameters));
     }
@@ -8167,13 +8192,10 @@ var ts;
     ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
     function isRestParameter(node) {
         if (node && (node.flags & 2097152)) {
-            if (node.type && node.type.kind === 275) {
+            if (node.type && node.type.kind === 275 ||
+                ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275; })) {
                 return true;
             }
-            var paramTag = getCorrespondingJSDocParameterTag(node);
-            if (paramTag && paramTag.typeExpression) {
-                return paramTag.typeExpression.type.kind === 275;
-            }
         }
         return isDeclaredRestParam(node);
     }
@@ -8396,8 +8418,10 @@ var ts;
         return isFunctionLike(node) && hasModifier(node, 256) && !isAccessor(node);
     }
     ts.isAsyncFunctionLike = isAsyncFunctionLike;
-    function isStringOrNumericLiteral(kind) {
-        return kind === 9 || kind === 8;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 9
+            || kind === 8;
     }
     ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
     function hasDynamicName(declaration) {
@@ -8406,7 +8430,7 @@ var ts;
     ts.hasDynamicName = hasDynamicName;
     function isDynamicName(name) {
         return name.kind === 142 &&
-            !isStringOrNumericLiteral(name.expression.kind) &&
+            !isStringOrNumericLiteral(name.expression) &&
             !isWellKnownSymbolSyntactically(name.expression);
     }
     ts.isDynamicName = isDynamicName;
@@ -8612,6 +8636,7 @@ var ts;
             case 194:
             case 183:
             case 198:
+            case 297:
                 return 19;
             case 181:
             case 177:
@@ -9373,19 +9398,19 @@ var ts;
         }
     }
     ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
-    function isAssignmentExpression(node) {
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
         return isBinaryExpression(node)
-            && isAssignmentOperator(node.operatorToken.kind)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 57
+                : isAssignmentOperator(node.operatorToken.kind))
             && isLeftHandSideExpression(node.left);
     }
     ts.isAssignmentExpression = isAssignmentExpression;
     function isDestructuringAssignment(node) {
-        if (isBinaryExpression(node)) {
-            if (node.operatorToken.kind === 57) {
-                var kind = node.left.kind;
-                return kind === 176
-                    || kind === 175;
-            }
+        if (isAssignmentExpression(node, true)) {
+            var kind = node.left.kind;
+            return kind === 176
+                || kind === 175;
         }
         return false;
     }
@@ -9696,122 +9721,6 @@ var ts;
         return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
     }
     ts.getStartPositionOfRange = getStartPositionOfRange;
-    function collectExternalModuleInfo(sourceFile, resolver) {
-        var externalImports = [];
-        var exportSpecifiers = ts.createMap();
-        var exportedBindings = ts.createMap();
-        var uniqueExports = ts.createMap();
-        var hasExportDefault = false;
-        var exportEquals = undefined;
-        var hasExportStarsToExportValues = false;
-        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
-            var node = _a[_i];
-            switch (node.kind) {
-                case 235:
-                    externalImports.push(node);
-                    break;
-                case 234:
-                    if (node.moduleReference.kind === 245) {
-                        externalImports.push(node);
-                    }
-                    break;
-                case 241:
-                    if (node.moduleSpecifier) {
-                        if (!node.exportClause) {
-                            externalImports.push(node);
-                            hasExportStarsToExportValues = true;
-                        }
-                        else {
-                            externalImports.push(node);
-                        }
-                    }
-                    else {
-                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
-                            var specifier = _c[_b];
-                            if (!uniqueExports[specifier.name.text]) {
-                                var name_10 = specifier.propertyName || specifier.name;
-                                ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
-                                var decl = resolver.getReferencedImportDeclaration(name_10)
-                                    || resolver.getReferencedValueDeclaration(name_10);
-                                if (decl) {
-                                    ts.multiMapAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
-                                }
-                                uniqueExports[specifier.name.text] = specifier.name;
-                            }
-                        }
-                    }
-                    break;
-                case 240:
-                    if (node.isExportEquals && !exportEquals) {
-                        exportEquals = node;
-                    }
-                    break;
-                case 205:
-                    if (hasModifier(node, 1)) {
-                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
-                            var decl = _e[_d];
-                            collectExportedVariableInfo(decl, uniqueExports);
-                        }
-                    }
-                    break;
-                case 225:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_11 = node.name;
-                            if (!uniqueExports[name_11.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_11);
-                                uniqueExports[name_11.text] = name_11;
-                            }
-                        }
-                    }
-                    break;
-                case 226:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_12 = node.name;
-                            if (!uniqueExports[name_12.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_12);
-                                uniqueExports[name_12.text] = name_12;
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        var exportedNames;
-        for (var key in uniqueExports) {
-            exportedNames = ts.append(exportedNames, uniqueExports[key]);
-        }
-        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames };
-    }
-    ts.collectExternalModuleInfo = collectExternalModuleInfo;
-    function collectExportedVariableInfo(decl, uniqueExports) {
-        if (isBindingPattern(decl.name)) {
-            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
-                var element = _a[_i];
-                if (!isOmittedExpression(element)) {
-                    collectExportedVariableInfo(element, uniqueExports);
-                }
-            }
-        }
-        else if (!isGeneratedIdentifier(decl.name)) {
-            if (!uniqueExports[decl.name.text]) {
-                uniqueExports[decl.name.text] = decl.name;
-            }
-        }
-    }
     function isDeclarationNameOfEnumOrNamespace(node) {
         var parseNode = getParseTreeNode(node);
         if (parseNode) {
@@ -9982,6 +9891,14 @@ var ts;
         return isTypeNodeKind(node.kind);
     }
     ts.isTypeNode = isTypeNode;
+    function isArrayBindingPattern(node) {
+        return node.kind === 173;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isObjectBindingPattern(node) {
+        return node.kind === 172;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
     function isBindingPattern(node) {
         if (node) {
             var kind = node.kind;
@@ -9991,6 +9908,12 @@ var ts;
         return false;
     }
     ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 175
+            || kind === 176;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
     function isBindingElement(node) {
         return node.kind === 174;
     }
@@ -10001,6 +9924,39 @@ var ts;
             || kind === 198;
     }
     ts.isArrayBindingElement = isArrayBindingElement;
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 223:
+            case 144:
+            case 174:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 172:
+            case 176:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
     function isArrayLiteralExpression(node) {
         return node.kind === 175;
     }
@@ -10067,7 +10023,8 @@ var ts;
             || kind === 98
             || kind === 100
             || kind === 96
-            || kind === 201;
+            || kind === 201
+            || kind === 297;
     }
     function isLeftHandSideExpression(node) {
         return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
@@ -10095,6 +10052,7 @@ var ts;
             || kind === 196
             || kind === 200
             || kind === 198
+            || kind === 297
             || isUnaryExpressionKind(kind);
     }
     function isExpression(node) {
@@ -10108,11 +10066,11 @@ var ts;
     }
     ts.isAssertionExpression = isAssertionExpression;
     function isPartiallyEmittedExpression(node) {
-        return node.kind === 293;
+        return node.kind === 294;
     }
     ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
     function isNotEmittedStatement(node) {
-        return node.kind === 292;
+        return node.kind === 293;
     }
     ts.isNotEmittedStatement = isNotEmittedStatement;
     function isNotEmittedOrPartiallyEmittedNode(node) {
@@ -10224,7 +10182,7 @@ var ts;
             || kind === 228
             || kind === 143
             || kind === 223
-            || kind === 284;
+            || kind === 285;
     }
     function isDeclarationStatementKind(kind) {
         return kind === 225
@@ -10259,9 +10217,9 @@ var ts;
             || kind === 205
             || kind === 210
             || kind === 217
-            || kind === 292
-            || kind === 295
-            || kind === 294;
+            || kind === 293
+            || kind === 296
+            || kind === 295;
     }
     function isDeclaration(node) {
         return isDeclarationKind(node.kind);
@@ -10549,6 +10507,53 @@ var ts;
         return flags;
     }
     ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, undefined, errors);
+        }
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.localizedDiagnosticMessages = JSON.parse(fileContents);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -10749,9 +10754,9 @@ var ts;
         return node;
     }
     ts.createParameter = createParameter;
-    function updateParameter(node, decorators, modifiers, name, type, initializer) {
-        if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
-            return updateNode(createParameter(decorators, modifiers, node.dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
+        if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
+            return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
         }
         return node;
     }
@@ -10884,9 +10889,9 @@ var ts;
         return node;
     }
     ts.createBindingElement = createBindingElement;
-    function updateBindingElement(node, propertyName, name, initializer) {
-        if (node.propertyName !== propertyName || node.name !== name || node.initializer !== initializer) {
-            return updateNode(createBindingElement(propertyName, node.dotDotDotToken, name, initializer, node), node);
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
+            return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
         }
         return node;
     }
@@ -10926,7 +10931,7 @@ var ts;
     function createPropertyAccess(expression, name, location, flags) {
         var node = createNode(177, location, flags);
         node.expression = parenthesizeForAccess(expression);
-        (node.emitNode || (node.emitNode = {})).flags |= 1048576;
+        (node.emitNode || (node.emitNode = {})).flags |= 65536;
         node.name = typeof name === "string" ? createIdentifier(name) : name;
         return node;
     }
@@ -11147,13 +11152,21 @@ var ts;
         return node;
     }
     ts.updateBinary = updateBinary;
-    function createConditional(condition, questionToken, whenTrue, colonToken, whenFalse, location) {
-        var node = createNode(193, location);
-        node.condition = condition;
-        node.questionToken = questionToken;
-        node.whenTrue = whenTrue;
-        node.colonToken = colonToken;
-        node.whenFalse = whenFalse;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
+        var node = createNode(193, whenFalse ? location : colonTokenOrLocation);
+        node.condition = parenthesizeForConditionalHead(condition);
+        if (whenFalse) {
+            node.questionToken = questionTokenOrWhenTrue;
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+            node.colonToken = colonTokenOrLocation;
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
+        }
+        else {
+            node.questionToken = createToken(54);
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
+            node.colonToken = createToken(55);
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+        }
         return node;
     }
     ts.createConditional = createConditional;
@@ -11963,35 +11976,33 @@ var ts;
                 updated.imports = node.imports;
             if (node.moduleAugmentations !== undefined)
                 updated.moduleAugmentations = node.moduleAugmentations;
-            if (node.externalHelpersModuleName !== undefined)
-                updated.externalHelpersModuleName = node.externalHelpersModuleName;
             return updateNode(updated, node);
         }
         return node;
     }
     ts.updateSourceFileNode = updateSourceFileNode;
     function createNotEmittedStatement(original) {
-        var node = createNode(292, original);
+        var node = createNode(293, original);
         node.original = original;
         return node;
     }
     ts.createNotEmittedStatement = createNotEmittedStatement;
     function createEndOfDeclarationMarker(original) {
-        var node = createNode(295);
+        var node = createNode(296);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createEndOfDeclarationMarker = createEndOfDeclarationMarker;
     function createMergeDeclarationMarker(original) {
-        var node = createNode(294);
+        var node = createNode(295);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createMergeDeclarationMarker = createMergeDeclarationMarker;
     function createPartiallyEmittedExpression(expression, original, location) {
-        var node = createNode(293, location || original);
+        var node = createNode(294, location || original);
         node.expression = expression;
         node.original = original;
         return node;
@@ -12004,6 +12015,12 @@ var ts;
         return node;
     }
     ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    function createRawExpression(text) {
+        var node = createNode(297);
+        node.text = text;
+        return node;
+    }
+    ts.createRawExpression = createRawExpression;
     function createComma(left, right) {
         return createBinary(left, 25, right);
     }
@@ -12052,13 +12069,19 @@ var ts;
         return createVoid(createLiteral(0));
     }
     ts.createVoidZero = createVoidZero;
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? createStrictEquality(value, createVoidZero())
+            : createStrictEquality(createTypeOf(value), createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
     function createMemberAccessForPropertyName(target, memberName, location) {
         if (ts.isComputedPropertyName(memberName)) {
             return createElementAccess(target, memberName.expression, location);
         }
         else {
             var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
-            (expression.emitNode || (expression.emitNode = {})).flags |= 2048;
+            (expression.emitNode || (expression.emitNode = {})).flags |= 64;
             return expression;
         }
     }
@@ -12100,7 +12123,10 @@ var ts;
     }
     function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
         if (ts.isQualifiedName(jsxFactory)) {
-            return createPropertyAccess(createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent), setEmitFlags(getMutableClone(jsxFactory.right), 1536));
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = createSynthesizedNode(70);
+            right.text = jsxFactory.right.text;
+            return createPropertyAccess(left, right);
         }
         else {
             return createReactNamespace(jsxFactory.text, parent);
@@ -12154,114 +12180,10 @@ var ts;
         return createVariableDeclarationList(declarations, location, 2);
     }
     ts.createConstDeclarationList = createConstDeclarationList;
-    function createHelperName(externalHelpersModuleName, name) {
-        return externalHelpersModuleName
-            ? createPropertyAccess(externalHelpersModuleName, name)
-            : createIdentifier(name);
-    }
-    ts.createHelperName = createHelperName;
-    function createExtendsHelper(externalHelpersModuleName, name) {
-        return createCall(createHelperName(externalHelpersModuleName, "__extends"), undefined, [
-            name,
-            createIdentifier("_super")
-        ]);
-    }
-    ts.createExtendsHelper = createExtendsHelper;
-    function createAssignHelper(externalHelpersModuleName, attributesSegments) {
-        return createCall(createHelperName(externalHelpersModuleName, "__assign"), undefined, attributesSegments);
-    }
-    ts.createAssignHelper = createAssignHelper;
-    function createParamHelper(externalHelpersModuleName, expression, parameterOffset, location) {
-        return createCall(createHelperName(externalHelpersModuleName, "__param"), undefined, [
-            createLiteral(parameterOffset),
-            expression
-        ], location);
-    }
-    ts.createParamHelper = createParamHelper;
-    function createMetadataHelper(externalHelpersModuleName, metadataKey, metadataValue) {
-        return createCall(createHelperName(externalHelpersModuleName, "__metadata"), undefined, [
-            createLiteral(metadataKey),
-            metadataValue
-        ]);
-    }
-    ts.createMetadataHelper = createMetadataHelper;
-    function createDecorateHelper(externalHelpersModuleName, decoratorExpressions, target, memberName, descriptor, location) {
-        var argumentsArray = [];
-        argumentsArray.push(createArrayLiteral(decoratorExpressions, undefined, true));
-        argumentsArray.push(target);
-        if (memberName) {
-            argumentsArray.push(memberName);
-            if (descriptor) {
-                argumentsArray.push(descriptor);
-            }
-        }
-        return createCall(createHelperName(externalHelpersModuleName, "__decorate"), undefined, argumentsArray, location);
+    function getHelperName(name) {
+        return setEmitFlags(createIdentifier(name), 4096 | 2);
     }
-    ts.createDecorateHelper = createDecorateHelper;
-    function createAwaiterHelper(externalHelpersModuleName, hasLexicalArguments, promiseConstructor, body) {
-        var generatorFunc = createFunctionExpression(undefined, createToken(38), undefined, undefined, [], undefined, body);
-        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 2097152;
-        return createCall(createHelperName(externalHelpersModuleName, "__awaiter"), undefined, [
-            createThis(),
-            hasLexicalArguments ? createIdentifier("arguments") : createVoidZero(),
-            promiseConstructor ? createExpressionFromEntityName(promiseConstructor) : createVoidZero(),
-            generatorFunc
-        ]);
-    }
-    ts.createAwaiterHelper = createAwaiterHelper;
-    function createHasOwnProperty(target, propertyName) {
-        return createCall(createPropertyAccess(target, "hasOwnProperty"), undefined, [propertyName]);
-    }
-    ts.createHasOwnProperty = createHasOwnProperty;
-    function createObjectCreate(prototype) {
-        return createCall(createPropertyAccess(createIdentifier("Object"), "create"), undefined, [prototype]);
-    }
-    function createGeti(target) {
-        return createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createElementAccess(target, createIdentifier("name")));
-    }
-    function createSeti(target) {
-        return createArrowFunction(undefined, undefined, [
-            createParameter(undefined, undefined, undefined, "name"),
-            createParameter(undefined, undefined, undefined, "value")
-        ], undefined, createToken(35), createAssignment(createElementAccess(target, createIdentifier("name")), createIdentifier("value")));
-    }
-    function createAdvancedAsyncSuperHelper() {
-        var createCache = createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("cache", undefined, createObjectCreate(createNull()))
-        ]));
-        var getter = createGetAccessor(undefined, undefined, "value", [], undefined, createBlock([
-            createReturn(createCall(createIdentifier("geti"), undefined, [createIdentifier("name")]))
-        ]));
-        var setter = createSetAccessor(undefined, undefined, "value", [createParameter(undefined, undefined, undefined, "v")], createBlock([
-            createStatement(createCall(createIdentifier("seti"), undefined, [
-                createIdentifier("name"),
-                createIdentifier("v")
-            ]))
-        ]));
-        var getOrCreateAccessorsForName = createReturn(createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createLogicalOr(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createParen(createAssignment(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createObjectLiteral([
-            getter,
-            setter
-        ]))))));
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createCall(createParen(createFunctionExpression(undefined, undefined, undefined, undefined, [
-                createParameter(undefined, undefined, undefined, "geti"),
-                createParameter(undefined, undefined, undefined, "seti")
-            ], undefined, createBlock([
-                createCache,
-                getOrCreateAccessorsForName
-            ]))), undefined, [
-                createGeti(createSuper()),
-                createSeti(createSuper())
-            ]))
-        ]));
-    }
-    ts.createAdvancedAsyncSuperHelper = createAdvancedAsyncSuperHelper;
-    function createSimpleAsyncSuperHelper() {
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createGeti(createSuper()))
-        ]));
-    }
-    ts.createSimpleAsyncSuperHelper = createSimpleAsyncSuperHelper;
+    ts.getHelperName = getHelperName;
     function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
         var target = skipParentheses(node);
         switch (target.kind) {
@@ -12407,19 +12329,19 @@ var ts;
         return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, method.name, method.name), setOriginalNode(createFunctionExpression(method.modifiers, method.asteriskToken, undefined, undefined, method.parameters, undefined, method.body, method), method), method), method));
     }
     function getLocalName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 262144);
+        return getName(node, allowComments, allowSourceMaps, 16384);
     }
     ts.getLocalName = getLocalName;
     function isLocalName(node) {
-        return (getEmitFlags(node) & 262144) !== 0;
+        return (getEmitFlags(node) & 16384) !== 0;
     }
     ts.isLocalName = isLocalName;
     function getExportName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 131072);
+        return getName(node, allowComments, allowSourceMaps, 8192);
     }
     ts.getExportName = getExportName;
     function isExportName(node) {
-        return (getEmitFlags(node) & 131072) !== 0;
+        return (getEmitFlags(node) & 8192) !== 0;
     }
     ts.isExportName = isExportName;
     function getDeclarationName(node, allowComments, allowSourceMaps) {
@@ -12428,15 +12350,15 @@ var ts;
     ts.getDeclarationName = getDeclarationName;
     function getName(node, allowComments, allowSourceMaps, emitFlags) {
         if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
-            var name_13 = getMutableClone(node.name);
+            var name_10 = getMutableClone(node.name);
             emitFlags |= getEmitFlags(node.name);
             if (!allowSourceMaps)
-                emitFlags |= 1536;
+                emitFlags |= 48;
             if (!allowComments)
-                emitFlags |= 49152;
+                emitFlags |= 1536;
             if (emitFlags)
-                setEmitFlags(name_13, emitFlags);
-            return name_13;
+                setEmitFlags(name_10, emitFlags);
+            return name_10;
         }
         return getGeneratedNameForNode(node);
     }
@@ -12451,14 +12373,18 @@ var ts;
         var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), name);
         var emitFlags;
         if (!allowSourceMaps)
-            emitFlags |= 1536;
+            emitFlags |= 48;
         if (!allowComments)
-            emitFlags |= 49152;
+            emitFlags |= 1536;
         if (emitFlags)
             setEmitFlags(qualifiedName, emitFlags);
         return qualifiedName;
     }
     ts.getNamespaceMemberName = getNamespaceMemberName;
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : createBlock([createReturn(node, node)], node, multiLine);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
     function isUseStrictPrologue(node) {
         return node.expression.text === "use strict";
     }
@@ -12485,7 +12411,7 @@ var ts;
         }
         while (statementOffset < numStatements) {
             var statement = source[statementOffset];
-            if (getEmitFlags(statement) & 8388608) {
+            if (getEmitFlags(statement) & 524288) {
                 target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
             }
             else {
@@ -12496,10 +12422,17 @@ var ts;
         return statementOffset;
     }
     ts.addPrologueDirectives = addPrologueDirectives;
-    function ensureUseStrict(node) {
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
+    function ensureUseStrict(statements) {
         var foundUseStrict = false;
-        for (var _i = 0, _a = node.statements; _i < _a.length; _i++) {
-            var statement = _a[_i];
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
             if (ts.isPrologueDirective(statement)) {
                 if (isUseStrictPrologue(statement)) {
                     foundUseStrict = true;
@@ -12511,11 +12444,11 @@ var ts;
             }
         }
         if (!foundUseStrict) {
-            var statements = [];
-            statements.push(startOnNewLine(createStatement(createLiteral("use strict"))));
-            return updateSourceFileNode(node, statements.concat(node.statements));
+            return createNodeArray([
+                startOnNewLine(createStatement(createLiteral("use strict")))
+            ].concat(statements), statements);
         }
-        return node;
+        return statements;
     }
     ts.ensureUseStrict = ensureUseStrict;
     function parenthesizeBinaryOperand(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
@@ -12590,6 +12523,21 @@ var ts;
         }
         return 0;
     }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(193, 54);
+        var emittedCondition = skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1) {
+            return createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        return e.kind === 192 && e.operatorToken.kind === 25
+            ? createParen(e)
+            : e;
+    }
     function parenthesizeForNew(expression) {
         var emittedExpression = skipPartiallyEmittedExpressions(expression);
         switch (emittedExpression.kind) {
@@ -12695,7 +12643,7 @@ var ts;
                 case 177:
                     node = node.expression;
                     continue;
-                case 293:
+                case 294:
                     node = node.expression;
                     continue;
             }
@@ -12743,7 +12691,7 @@ var ts;
     }
     ts.skipAssertions = skipAssertions;
     function skipPartiallyEmittedExpressions(node) {
-        while (node.kind === 293) {
+        while (node.kind === 294) {
             node = node.expression;
         }
         return node;
@@ -12765,8 +12713,8 @@ var ts;
     }
     ts.setOriginalNode = setOriginalNode;
     function mergeEmitNode(sourceEmitNode, destEmitNode) {
-        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges;
-        if (!destEmitNode && (flags || commentRange || sourceMapRange || tokenSourceMapRanges))
+        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
+        if (!destEmitNode)
             destEmitNode = {};
         if (flags)
             destEmitNode.flags = flags;
@@ -12776,6 +12724,10 @@ var ts;
             destEmitNode.sourceMapRange = sourceMapRange;
         if (tokenSourceMapRanges)
             destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
         return destEmitNode;
     }
     function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
@@ -12809,6 +12761,7 @@ var ts;
         }
         return node.emitNode;
     }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
     function getEmitFlags(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.flags;
@@ -12819,11 +12772,22 @@ var ts;
         return node;
     }
     ts.setEmitFlags = setEmitFlags;
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
     function setSourceMapRange(node, range) {
         getOrCreateEmitNode(node).sourceMapRange = range;
         return node;
     }
     ts.setSourceMapRange = setSourceMapRange;
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
     function setTokenSourceMapRange(node, token, range) {
         var emitNode = getOrCreateEmitNode(node);
         var tokenSourceMapRanges = emitNode.tokenSourceMapRanges || (emitNode.tokenSourceMapRanges = ts.createMap());
@@ -12831,27 +12795,16 @@ var ts;
         return node;
     }
     ts.setTokenSourceMapRange = setTokenSourceMapRange;
-    function setCommentRange(node, range) {
-        getOrCreateEmitNode(node).commentRange = range;
-        return node;
-    }
-    ts.setCommentRange = setCommentRange;
     function getCommentRange(node) {
         var emitNode = node.emitNode;
         return (emitNode && emitNode.commentRange) || node;
     }
     ts.getCommentRange = getCommentRange;
-    function getSourceMapRange(node) {
-        var emitNode = node.emitNode;
-        return (emitNode && emitNode.sourceMapRange) || node;
-    }
-    ts.getSourceMapRange = getSourceMapRange;
-    function getTokenSourceMapRange(node, token) {
-        var emitNode = node.emitNode;
-        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
-        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
     }
-    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    ts.setCommentRange = setCommentRange;
     function getConstantValue(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.constantValue;
@@ -12863,6 +12816,103 @@ var ts;
         return node;
     }
     ts.setConstantValue = setConstantValue;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
+        if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var helpers = getEmitHelpers(node);
+            if (helpers) {
+                for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                    var helper = helpers_1[_i];
+                    if (!helper.scoped) {
+                        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                        var emitNode = getOrCreateEmitNode(parseNode);
+                        return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
+                    }
+                }
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                var helper = helpers_2[_i];
+                if (!ts.contains(emitNode.helpers, helper)) {
+                    emitNode.helpers = ts.append(emitNode.helpers, helper);
+                }
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                if (!ts.contains(targetEmitNode.helpers, helper)) {
+                    targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
+                }
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0;
+        if (x.priority === y.priority)
+            return 0;
+        if (x.priority === undefined)
+            return 1;
+        if (y.priority === undefined)
+            return -1;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
     function setTextRange(node, location) {
         if (location) {
             node.pos = location.pos;
@@ -12889,8 +12939,8 @@ var ts;
     function getLocalNameForExternalImport(node, sourceFile) {
         var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
         if (namespaceDeclaration && !ts.isDefaultImport(node)) {
-            var name_14 = namespaceDeclaration.name;
-            return ts.isGeneratedIdentifier(name_14) ? name_14 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
+            var name_11 = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name_11) ? name_11 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
         }
         if (node.kind === 235 && node.importClause) {
             return getGeneratedNameForNode(node);
@@ -12933,221 +12983,291 @@ var ts;
     function tryGetModuleNameFromDeclaration(declaration, host, resolver, compilerOptions) {
         return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
     }
-    function transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis, convertObjectRest) {
-        var multiLine = false;
-        var singleLine = false;
-        var statementsLocation;
-        var closeBraceLocation;
-        var statements = [];
-        var body = node.body;
-        var statementOffset;
-        context.startLexicalEnvironment();
-        if (ts.isBlock(body)) {
-            statementOffset = addPrologueDirectives(statements, body.statements, false, visitor);
-        }
-        addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-        addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest);
-        addRestParameterIfNeeded(statements, node, false);
-        if (!multiLine && statements.length > 0) {
-            multiLine = true;
-        }
-        if (ts.isBlock(body)) {
-            statementsLocation = body.statements;
-            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
-            if (!multiLine && body.multiLine) {
-                multiLine = true;
-            }
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.initializer;
         }
-        else {
-            ts.Debug.assert(node.kind === 185);
-            statementsLocation = ts.moveRangeEnd(body, -1);
-            var equalsGreaterThanToken = node.equalsGreaterThanToken;
-            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
-                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
-                    singleLine = true;
-                }
-                else {
-                    multiLine = true;
-                }
-            }
-            var expression = ts.visitNode(body, visitor, ts.isExpression);
-            var returnStatement = createReturn(expression, body);
-            setEmitFlags(returnStatement, 12288 | 1024 | 32768);
-            statements.push(returnStatement);
-            closeBraceLocation = body;
+        if (ts.isPropertyAssignment(bindingElement)) {
+            return ts.isAssignmentExpression(bindingElement.initializer, true)
+                ? bindingElement.initializer.right
+                : undefined;
         }
-        var lexicalEnvironment = context.endLexicalEnvironment();
-        ts.addRange(statements, lexicalEnvironment);
-        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
-            multiLine = true;
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            return bindingElement.objectAssignmentInitializer;
         }
-        var block = createBlock(createNodeArray(statements, statementsLocation), node.body, multiLine);
-        if (!multiLine && singleLine) {
-            setEmitFlags(block, 32);
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return bindingElement.right;
         }
-        if (closeBraceLocation) {
-            setTokenSourceMapRange(block, 17, closeBraceLocation);
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
         }
-        setOriginalNode(block, node.body);
-        return block;
     }
-    ts.transformFunctionBody = transformFunctionBody;
-    function addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis) {
-        if (node.transformFlags & 524288 && node.kind !== 185) {
-            captureThisForNode(statements, node, createThis(), enableSubstitutionsForCapturedThis);
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.name;
+        }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 257:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 258:
+                    return bindingElement.name;
+                case 259:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            return undefined;
         }
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        return bindingElement;
     }
-    ts.addCaptureThisForNodeIfNeeded = addCaptureThisForNodeIfNeeded;
-    function captureThisForNode(statements, node, initializer, enableSubstitutionsForCapturedThis, originalStatement) {
-        enableSubstitutionsForCapturedThis();
-        var captureThisStatement = createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration("_this", undefined, initializer)
-        ]), originalStatement);
-        setEmitFlags(captureThisStatement, 49152 | 8388608);
-        setSourceMapRange(captureThisStatement, node);
-        statements.push(captureThisStatement);
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 144:
+            case 174:
+                return bindingElement.dotDotDotToken;
+            case 196:
+            case 259:
+                return bindingElement;
+        }
+        return undefined;
     }
-    ts.captureThisForNode = captureThisForNode;
-    function shouldAddDefaultValueAssignments(node) {
-        return (node.transformFlags & 2097152) !== 0;
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 174:
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 257:
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 259:
+                return bindingElement.name;
+        }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
+                ? target.expression
+                : target;
+        }
+        ts.Debug.fail("Invalid property name for binding element.");
     }
-    function addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest) {
-        if (!shouldAddDefaultValueAssignments(node)) {
-            return;
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 172:
+            case 173:
+            case 175:
+                return name.elements;
+            case 176:
+                return name.properties;
         }
-        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
-            var parameter = _a[_i];
-            var name_15 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
-            if (dotDotDotToken) {
-                continue;
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpread(element.name, element), element);
             }
-            if (ts.isBindingPattern(name_15)) {
-                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_15, initializer, visitor, convertObjectRest);
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
+        }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
+    }
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpreadAssignment(element.name, element), element);
             }
-            else if (initializer) {
-                addDefaultValueAssignmentForInitializer(statements, parameter, name_15, initializer, visitor);
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
             }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
         }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
     }
-    ts.addDefaultValueAssignmentsIfNeeded = addDefaultValueAssignmentsIfNeeded;
-    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer, visitor, convertObjectRest) {
-        var temp = getGeneratedNameForNode(parameter);
-        if (name.elements.length > 0) {
-            statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList(ts.flattenParameterDestructuring(parameter, temp, visitor, convertObjectRest))), 8388608));
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return convertToArrayAssignmentPattern(node);
+            case 172:
+            case 176:
+                return convertToObjectAssignmentPattern(node);
         }
-        else if (initializer) {
-            statements.push(setEmitFlags(createStatement(createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 8388608));
+    }
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
         }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
     }
-    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer, visitor) {
-        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
-        var statement = createIf(createStrictEquality(getSynthesizedClone(name), createVoidZero()), setEmitFlags(createBlock([
-            createStatement(createAssignment(setEmitFlags(getMutableClone(name), 1536), setEmitFlags(initializer, 1536 | getEmitFlags(initializer)), parameter))
-        ], parameter), 32 | 1024 | 12288), undefined, parameter);
-        statement.startsOnNewLine = true;
-        setEmitFlags(statement, 12288 | 1024 | 8388608);
-        statements.push(statement);
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
+        }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
     }
-    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
-        return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
+        }
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
     }
-    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
-        var parameter = ts.lastOrUndefined(node.parameters);
-        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
-            return;
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMap();
+        var exportedBindings = ts.createMap();
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals = undefined;
+        var hasExportStarsToExportValues = false;
+        var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
+        var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(undefined, undefined, createImportClause(undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
+        if (externalHelpersImportDeclaration) {
+            externalImports.push(externalHelpersImportDeclaration);
         }
-        var declarationName = getMutableClone(parameter.name);
-        setEmitFlags(declarationName, 1536);
-        var expressionName = getSynthesizedClone(parameter.name);
-        var restIndex = node.parameters.length - 1;
-        var temp = createLoopVariable();
-        statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration(declarationName, undefined, createArrayLiteral([]))
-        ]), parameter), 8388608));
-        var forStatement = createFor(createVariableDeclarationList([
-            createVariableDeclaration(temp, undefined, createLiteral(restIndex))
-        ], parameter), createLessThan(temp, createPropertyAccess(createIdentifier("arguments"), "length"), parameter), createPostfixIncrement(temp, parameter), createBlock([
-            startOnNewLine(createStatement(createAssignment(createElementAccess(expressionName, createSubtract(temp, createLiteral(restIndex))), createElementAccess(createIdentifier("arguments"), temp)), parameter))
-        ]));
-        setEmitFlags(forStatement, 8388608);
-        startOnNewLine(forStatement);
-        statements.push(forStatement);
-    }
-    ts.addRestParameterIfNeeded = addRestParameterIfNeeded;
-    function convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, convertObjectRest) {
-        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
-        var initializer = node.initializer;
-        var statements = [];
-        var counter = convertObjectRest ? undefined : createLoopVariable();
-        var rhsReference = expression.kind === 70
-            ? createUniqueName(expression.text)
-            : createTempVariable(undefined);
-        var elementAccess = convertObjectRest ? rhsReference : createElementAccess(rhsReference, counter);
-        if (ts.isVariableDeclarationList(initializer)) {
-            if (initializer.flags & 3) {
-                enableSubstitutionsForBlockScopedBindings();
-            }
-            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
-            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
-                var declarations = ts.flattenVariableDestructuring(firstOriginalDeclaration, elementAccess, visitor, undefined, convertObjectRest);
-                var declarationList = createVariableDeclarationList(declarations, initializer);
-                setOriginalNode(declarationList, initializer);
-                var firstDeclaration = declarations[0];
-                var lastDeclaration = ts.lastOrUndefined(declarations);
-                setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
-                statements.push(createVariableStatement(undefined, declarationList));
-            }
-            else {
-                statements.push(createVariableStatement(undefined, setOriginalNode(createVariableDeclarationList([
-                    createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : createTempVariable(undefined), undefined, createElementAccess(rhsReference, counter))
-                ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 235:
+                    externalImports.push(node);
+                    break;
+                case 234:
+                    if (node.moduleReference.kind === 245) {
+                        externalImports.push(node);
+                    }
+                    break;
+                case 241:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports[specifier.name.text]) {
+                                var name_12 = specifier.propertyName || specifier.name;
+                                ts.multiMapAdd(exportSpecifiers, name_12.text, specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name_12)
+                                    || resolver.getReferencedValueDeclaration(name_12);
+                                if (decl) {
+                                    ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports[specifier.name.text] = true;
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 240:
+                    if (node.isExportEquals && !exportEquals) {
+                        exportEquals = node;
+                    }
+                    break;
+                case 205:
+                    if (ts.hasModifier(node, 1)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 225:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_13 = node.name;
+                            if (!uniqueExports[name_13.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_13);
+                                uniqueExports[name_13.text] = true;
+                                exportedNames = ts.append(exportedNames, name_13);
+                            }
+                        }
+                    }
+                    break;
+                case 226:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_14 = node.name;
+                            if (!uniqueExports[name_14.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_14);
+                                uniqueExports[name_14.text] = true;
+                                exportedNames = ts.append(exportedNames, name_14);
+                            }
+                        }
+                    }
+                    break;
             }
         }
-        else {
-            var assignment = createAssignment(initializer, elementAccess);
-            if (ts.isDestructuringAssignment(assignment)) {
-                statements.push(createStatement(ts.flattenDestructuringAssignment(context, assignment, false, context.hoistVariableDeclaration, visitor, convertObjectRest)));
-            }
-            else {
-                assignment.end = initializer.end;
-                statements.push(createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
             }
         }
-        var bodyLocation;
-        var statementsLocation;
-        if (convertedLoopBodyStatements) {
-            ts.addRange(statements, convertedLoopBodyStatements);
-        }
-        else {
-            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
-            if (ts.isBlock(statement)) {
-                ts.addRange(statements, statement.statements);
-                bodyLocation = statement;
-                statementsLocation = statement.statements;
-            }
-            else {
-                statements.push(statement);
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            if (!uniqueExports[decl.name.text]) {
+                uniqueExports[decl.name.text] = true;
+                exportedNames = ts.append(exportedNames, decl.name);
             }
         }
-        setEmitFlags(expression, 1536 | getEmitFlags(expression));
-        var body = createBlock(createNodeArray(statements, statementsLocation), bodyLocation);
-        setEmitFlags(body, 1536 | 12288);
-        var forStatement;
-        if (convertObjectRest) {
-            forStatement = createForOf(createVariableDeclarationList([
-                createVariableDeclaration(rhsReference, undefined, undefined, node.expression)
-            ], node.expression), node.expression, body, node);
-        }
-        else {
-            forStatement = createFor(setEmitFlags(createVariableDeclarationList([
-                createVariableDeclaration(counter, undefined, createLiteral(0), ts.moveRangePos(node.expression, -1)),
-                createVariableDeclaration(rhsReference, undefined, expression, node.expression)
-            ], node.expression), 16777216), createLessThan(counter, createPropertyAccess(rhsReference, "length"), node.expression), createPostfixIncrement(counter, node.expression), body, node);
-        }
-        setEmitFlags(forStatement, 8192);
-        return forStatement;
+        return exportedNames;
     }
-    ts.convertForOf = convertForOf;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -13545,29 +13665,31 @@ var ts;
                     visitNode(cbNode, node.type);
             case 278:
                 return visitNodes(cbNodes, node.tags);
-            case 280:
+            case 281:
                 return visitNode(cbNode, node.preParameterName) ||
                     visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.postParameterName);
-            case 281:
-                return visitNode(cbNode, node.typeExpression);
             case 282:
                 return visitNode(cbNode, node.typeExpression);
             case 283:
-                return visitNodes(cbNodes, node.typeParameters);
+                return visitNode(cbNode, node.typeExpression);
+            case 280:
+                return visitNode(cbNode, node.typeExpression);
             case 284:
+                return visitNodes(cbNodes, node.typeParameters);
+            case 285:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.fullName) ||
                     visitNode(cbNode, node.name) ||
                     visitNode(cbNode, node.jsDocTypeLiteral);
-            case 286:
+            case 287:
                 return visitNodes(cbNodes, node.jsDocPropertyTags);
-            case 285:
+            case 286:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.name);
-            case 293:
+            case 294:
                 return visitNode(cbNode, node.expression);
-            case 287:
+            case 288:
                 return visitNode(cbNode, node.literal);
         }
     }
@@ -13691,7 +13813,7 @@ var ts;
             return sourceFile;
         }
         function addJSDocComment(node) {
-            var comments = ts.getJsDocCommentsFromText(node, sourceFile.text);
+            var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                     var comment = comments_2[_i];
@@ -13699,10 +13821,10 @@ var ts;
                     if (!jsDoc) {
                         continue;
                     }
-                    if (!node.jsDocComments) {
-                        node.jsDocComments = [];
+                    if (!node.jsDoc) {
+                        node.jsDoc = [];
                     }
-                    node.jsDocComments.push(jsDoc);
+                    node.jsDoc.push(jsDoc);
                 }
             }
             return node;
@@ -13717,12 +13839,12 @@ var ts;
                     var saveParent = parent;
                     parent = n;
                     forEachChild(n, visitNode);
-                    if (n.jsDocComments) {
-                        for (var _i = 0, _a = n.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            jsDocComment.parent = n;
-                            parent = jsDocComment;
-                            forEachChild(jsDocComment, visitNode);
+                    if (n.jsDoc) {
+                        for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            jsDoc.parent = n;
+                            parent = jsDoc;
+                            forEachChild(jsDoc, visitNode);
                         }
                     }
                     parent = saveParent;
@@ -16899,8 +17021,8 @@ var ts;
                 return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
             }
             if (decorators || modifiers) {
-                var name_16 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
-                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_16, undefined);
+                var name_15 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_15, undefined);
             }
             ts.Debug.fail("Should not have attempted to parse class member declaration.");
         }
@@ -17547,7 +17669,7 @@ var ts;
                 return finishNode(result);
             }
             function parseJSDocLiteralType() {
-                var result = createNode(287);
+                var result = createNode(288);
                 result.literal = parseLiteralTypeNode();
                 return finishNode(result);
             }
@@ -17727,6 +17849,9 @@ var ts;
                     var tag;
                     if (tagName) {
                         switch (tagName.text) {
+                            case "augments":
+                                tag = parseAugmentsTag(atToken, tagName);
+                                break;
                             case "param":
                                 tag = parseParamTag(atToken, tagName);
                                 break;
@@ -17866,7 +17991,7 @@ var ts;
                     if (!typeExpression) {
                         typeExpression = tryParseTypeExpression();
                     }
-                    var result = createNode(280, atToken.pos);
+                    var result = createNode(281, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.preParameterName = preName;
@@ -17877,20 +18002,20 @@ var ts;
                     return finishNode(result);
                 }
                 function parseReturnTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 281; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(281, atToken.pos);
+                    var result = createNode(282, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
                     return finishNode(result);
                 }
                 function parseTypeTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(282, atToken.pos);
+                    var result = createNode(283, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
@@ -17905,17 +18030,25 @@ var ts;
                         parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                         return undefined;
                     }
-                    var result = createNode(285, atToken.pos);
+                    var result = createNode(286, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.name = name;
                     result.typeExpression = typeExpression;
                     return finishNode(result);
                 }
+                function parseAugmentsTag(atToken, tagName) {
+                    var typeExpression = tryParseTypeExpression();
+                    var result = createNode(280, atToken.pos);
+                    result.atToken = atToken;
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    return finishNode(result);
+                }
                 function parseTypedefTag(atToken, tagName) {
                     var typeExpression = tryParseTypeExpression();
                     skipWhitespace();
-                    var typedefTag = createNode(284, atToken.pos);
+                    var typedefTag = createNode(285, atToken.pos);
                     typedefTag.atToken = atToken;
                     typedefTag.tagName = tagName;
                     typedefTag.fullName = parseJSDocTypeNameWithNamespace(0);
@@ -17932,8 +18065,8 @@ var ts;
                         if (typeExpression.type.kind === 272) {
                             var jsDocTypeReference = typeExpression.type;
                             if (jsDocTypeReference.name.kind === 70) {
-                                var name_17 = jsDocTypeReference.name;
-                                if (name_17.text === "Object") {
+                                var name_16 = jsDocTypeReference.name;
+                                if (name_16.text === "Object") {
                                     typedefTag.jsDocTypeLiteral = scanChildTags();
                                 }
                             }
@@ -17947,7 +18080,7 @@ var ts;
                     }
                     return finishNode(typedefTag);
                     function scanChildTags() {
-                        var jsDocTypeLiteral = createNode(286, scanner.getStartPos());
+                        var jsDocTypeLiteral = createNode(287, scanner.getStartPos());
                         var resumePos = scanner.getStartPos();
                         var canParseTag = true;
                         var seenAsterisk = false;
@@ -18032,19 +18165,19 @@ var ts;
                     return false;
                 }
                 function parseTemplateTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 284; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
                     var typeParameters = createNodeArray();
                     while (true) {
-                        var name_18 = parseJSDocIdentifierName();
+                        var name_17 = parseJSDocIdentifierName();
                         skipWhitespace();
-                        if (!name_18) {
+                        if (!name_17) {
                             parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                             return undefined;
                         }
-                        var typeParameter = createNode(143, name_18.pos);
-                        typeParameter.name = name_18;
+                        var typeParameter = createNode(143, name_17.pos);
+                        typeParameter.name = name_17;
                         finishNode(typeParameter);
                         typeParameters.push(typeParameter);
                         if (token() === 25) {
@@ -18055,7 +18188,7 @@ var ts;
                             break;
                         }
                     }
-                    var result = createNode(283, atToken.pos);
+                    var result = createNode(284, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeParameters = typeParameters;
@@ -18135,8 +18268,8 @@ var ts;
                     ts.Debug.assert(text === newText.substring(node.pos, node.end));
                 }
                 forEachChild(node, visitNode, visitArray);
-                if (node.jsDocComments) {
-                    for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
+                if (node.jsDoc) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         forEachChild(jsDocComment, visitNode, visitArray);
                     }
@@ -18520,7 +18653,7 @@ var ts;
                 }
                 if (node.name.kind === 142) {
                     var nameExpression = node.name.expression;
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
@@ -18565,7 +18698,7 @@ var ts;
                     var functionType = node.parent;
                     var index = ts.indexOf(functionType.parameters, node);
                     return "arg" + index;
-                case 284:
+                case 285:
                     var parentNode = node.parent && node.parent.parent;
                     var nameFromParentNode = void 0;
                     if (parentNode && parentNode.kind === 205) {
@@ -18640,7 +18773,7 @@ var ts;
                 }
             }
             else {
-                var isJSDocTypedefInJSDocNamespace = node.kind === 284 &&
+                var isJSDocTypedefInJSDocNamespace = node.kind === 285 &&
                     node.name &&
                     node.name.kind === 70 &&
                     node.name.isInJSDocNamespace;
@@ -18745,12 +18878,35 @@ var ts;
                 subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
             }
         }
+        function bindEach(nodes) {
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0;
+                var nodeArrayFlags = 0;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bind(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
         function bindChildrenWorker(node) {
-            if (ts.isInJavaScriptFile(node) && node.jsDocComments) {
-                ts.forEach(node.jsDocComments, bind);
+            if (ts.isInJavaScriptFile(node) && node.jsDoc) {
+                ts.forEach(node.jsDoc, bind);
             }
             if (checkUnreachable(node)) {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 return;
             }
             switch (node.kind) {
@@ -18815,7 +18971,7 @@ var ts;
                     bindCallExpressionFlow(node);
                     break;
                 default:
-                    ts.forEachChild(node, bind);
+                    bindEachChild(node);
                     break;
             }
         }
@@ -19118,7 +19274,7 @@ var ts;
             }
             return undefined;
         }
-        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
             var flowLabel = node.kind === 215 ? breakTarget : continueTarget;
             if (flowLabel) {
                 addAntecedent(flowLabel, currentFlow);
@@ -19131,11 +19287,11 @@ var ts;
                 var activeLabel = findActiveLabel(node.label.text);
                 if (activeLabel) {
                     activeLabel.referenced = true;
-                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                 }
             }
             else {
-                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
             }
         }
         function bindTryStatement(node) {
@@ -19186,6 +19342,8 @@ var ts;
             currentFlow = finishFlowLabel(postSwitchLabel);
         }
         function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
             var clauses = node.clauses;
             var fallthroughFlow = unreachableFlow;
             for (var i = 0; i < clauses.length; i++) {
@@ -19205,13 +19363,15 @@ var ts;
                     errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                 }
             }
+            clauses.transformFlags = subtreeTransformFlags | 536870912;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
         }
         function bindCaseClause(node) {
             var saveCurrentFlow = currentFlow;
             currentFlow = preSwitchCaseFlow;
             bind(node.expression);
             currentFlow = saveCurrentFlow;
-            ts.forEach(node.statements, bind);
+            bindEach(node.statements);
         }
         function pushActiveLabel(name, breakTarget, continueTarget) {
             var activeLabel = {
@@ -19297,19 +19457,19 @@ var ts;
                 var saveTrueTarget = currentTrueTarget;
                 currentTrueTarget = currentFalseTarget;
                 currentFalseTarget = saveTrueTarget;
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 currentFalseTarget = currentTrueTarget;
                 currentTrueTarget = saveTrueTarget;
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (node.operator === 42 || node.operator === 43) {
                     bindAssignmentTargetFlow(node.operand);
                 }
             }
         }
         function bindPostfixUnaryExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.operator === 42 || node.operator === 43) {
                 bindAssignmentTargetFlow(node.operand);
             }
@@ -19327,7 +19487,7 @@ var ts;
                 }
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                     bindAssignmentTargetFlow(node.left);
                     if (operator === 57 && node.left.kind === 178) {
@@ -19340,7 +19500,7 @@ var ts;
             }
         }
         function bindDeleteExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.expression.kind === 177) {
                 bindAssignmentTargetFlow(node.expression);
             }
@@ -19373,7 +19533,7 @@ var ts;
             }
         }
         function bindVariableDeclarationFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.initializer || node.parent.parent.kind === 212 || node.parent.parent.kind === 213) {
                 bindInitializedVariableFlow(node);
             }
@@ -19384,12 +19544,12 @@ var ts;
                 expr = expr.expression;
             }
             if (expr.kind === 184 || expr.kind === 185) {
-                ts.forEach(node.typeArguments, bind);
-                ts.forEach(node.arguments, bind);
+                bindEach(node.typeArguments);
+                bindEach(node.arguments);
                 bind(node.expression);
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
             }
             if (node.expression.kind === 177) {
                 var propertyAccess = node.expression;
@@ -19405,7 +19565,7 @@ var ts;
                 case 229:
                 case 176:
                 case 161:
-                case 286:
+                case 287:
                 case 270:
                     return 1;
                 case 227:
@@ -19474,7 +19634,7 @@ var ts;
                 case 176:
                 case 227:
                 case 270:
-                case 286:
+                case 287:
                     return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
                 case 158:
                 case 159:
@@ -19768,8 +19928,8 @@ var ts;
         }
         function updateStrictModeStatementList(statements) {
             if (!inStrictMode) {
-                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
-                    var statement = statements_1[_i];
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
                     if (!ts.isPrologueDirective(statement)) {
                         return;
                     }
@@ -19789,7 +19949,7 @@ var ts;
                 case 70:
                     if (node.isInJSDocNamespace) {
                         var parentNode = node.parent;
-                        while (parentNode && parentNode.kind !== 284) {
+                        while (parentNode && parentNode.kind !== 285) {
                             parentNode = parentNode.parent;
                         }
                         bindBlockScopedDeclaration(parentNode, 524288, 793064);
@@ -19859,7 +20019,7 @@ var ts;
                 case 146:
                 case 271:
                     return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 536870912 : 0), 0);
-                case 285:
+                case 286:
                     return bindJSDocProperty(node);
                 case 257:
                 case 258:
@@ -19903,7 +20063,7 @@ var ts;
                     return bindFunctionOrConstructorType(node);
                 case 161:
                 case 170:
-                case 286:
+                case 287:
                 case 270:
                     return bindAnonymousDeclaration(node, 2048, "__type");
                 case 176:
@@ -19922,7 +20082,7 @@ var ts;
                     return bindClassLikeDeclaration(node);
                 case 227:
                     return bindBlockScopedDeclaration(node, 64, 792968);
-                case 284:
+                case 285:
                     if (!node.fullName || node.fullName.kind === 70) {
                         return bindBlockScopedDeclaration(node, 524288, 793064);
                     }
@@ -19996,12 +20156,12 @@ var ts;
                 return;
             }
             else {
-                var parent_5 = node.parent;
-                if (!ts.isExternalModule(parent_5)) {
+                var parent_4 = node.parent;
+                if (!ts.isExternalModule(parent_4)) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                     return;
                 }
-                if (!parent_5.isDeclarationFile) {
+                if (!parent_4.isDeclarationFile) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                     return;
                 }
@@ -20287,12 +20447,12 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608
+        if (subtreeFlags & 524288
             || isSuperOrSuperProperty(expression, expressionKind)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function isSuperOrSuperProperty(node, kind) {
         switch (kind) {
@@ -20311,28 +20471,28 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 524288) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function computeBinaryExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var operatorTokenKind = node.operatorToken.kind;
         var leftKind = node.left.kind;
         if (operatorTokenKind === 57 && leftKind === 176) {
-            transformFlags |= 48 | 3072 | 49152;
+            transformFlags |= 8 | 192 | 3072;
         }
         else if (operatorTokenKind === 57 && leftKind === 175) {
-            transformFlags |= 3072 | 49152;
+            transformFlags |= 192 | 3072;
         }
         else if (operatorTokenKind === 39
             || operatorTokenKind === 61) {
-            transformFlags |= 768;
+            transformFlags |= 32;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeParameter(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20342,21 +20502,21 @@ var ts;
         var dotDotDotToken = node.dotDotDotToken;
         if (node.questionToken
             || node.type
-            || subtreeFlags & 65536
+            || subtreeFlags & 4096
             || ts.isThisIdentifier(name)) {
             transformFlags |= 3;
         }
         if (modifierFlags & 92) {
-            transformFlags |= 3 | 4194304;
+            transformFlags |= 3 | 262144;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 67108864 || initializer || dotDotDotToken) {
-            transformFlags |= 3072 | 2097152;
+        if (subtreeFlags & 8388608 || initializer || dotDotDotToken) {
+            transformFlags |= 192 | 131072;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~536872257;
     }
     function computeParenthesizedExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20367,11 +20527,11 @@ var ts;
             || expressionKind === 182) {
             transformFlags |= 3;
         }
-        if (expressionTransformFlags & 16384) {
-            transformFlags |= 16384;
+        if (expressionTransformFlags & 1024) {
+            transformFlags |= 1024;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeClassDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -20380,35 +20540,35 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 3072;
-            if ((subtreeFlags & 4390912)
+            transformFlags = subtreeFlags | 192;
+            if ((subtreeFlags & 274432)
                 || node.typeParameters) {
                 transformFlags |= 3;
             }
-            if (subtreeFlags & 1048576) {
-                transformFlags |= 262144;
+            if (subtreeFlags & 65536) {
+                transformFlags |= 16384;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeClassExpression(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
-        if (subtreeFlags & 4390912
+        var transformFlags = subtreeFlags | 192;
+        if (subtreeFlags & 274432
             || node.typeParameters) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 1048576) {
-            transformFlags |= 262144;
+        if (subtreeFlags & 65536) {
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeHeritageClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         switch (node.token) {
             case 84:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 107:
                 transformFlags |= 3;
@@ -20418,23 +20578,23 @@ var ts;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeCatchClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~537920833;
     }
     function computeExpressionWithTypeArguments(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeConstructor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20442,11 +20602,14 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeMethod(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.decorators
             || ts.hasModifier(node, 2270)
             || node.typeParameters
@@ -20454,14 +20617,17 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeAccessor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20471,16 +20637,19 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computePropertyDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags | 3;
         if (node.initializer) {
-            transformFlags |= 131072;
+            transformFlags |= 8192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeFunctionDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -20490,27 +20659,27 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 268435456;
+            transformFlags = subtreeFlags | 33554432;
             if (modifierFlags & 2270
                 || node.typeParameters
                 || node.type) {
                 transformFlags |= 3;
             }
             if (modifierFlags & 256) {
-                transformFlags |= 192;
+                transformFlags |= 16;
             }
-            if (subtreeFlags & 8388608) {
-                transformFlags |= 48;
+            if (subtreeFlags & 1048576) {
+                transformFlags |= 8;
             }
-            if (subtreeFlags & 2621440) {
-                transformFlags |= 3072;
+            if (subtreeFlags & 163840) {
+                transformFlags |= 192;
             }
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                transformFlags |= 12288;
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                transformFlags |= 768;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeFunctionExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20520,63 +20689,60 @@ var ts;
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 2621440) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 163840) {
+            transformFlags |= 192;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeArrowFunction(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (ts.hasModifier(node, 2270)
             || node.typeParameters
             || node.type) {
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 262144) {
-            transformFlags |= 524288;
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~979719509;
+        return transformFlags & ~601249089;
     }
     function computePropertyAccess(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var expression = node.expression;
         var expressionKind = expression.kind;
         if (expressionKind === 96) {
-            transformFlags |= 262144;
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var nameKind = node.name.kind;
-        if (nameKind === 172) {
-            transformFlags |= 48 | 3072 | 67108864;
-        }
-        else if (nameKind === 173) {
-            transformFlags |= 3072 | 67108864;
+        transformFlags |= 192 | 8388608;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
         if (node.type) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableStatement(node, subtreeFlags) {
         var transformFlags;
@@ -20587,21 +20753,21 @@ var ts;
         }
         else {
             transformFlags = subtreeFlags;
-            if (declarationListTransformFlags & 67108864) {
-                transformFlags |= 3072;
+            if (declarationListTransformFlags & 8388608) {
+                transformFlags |= 192;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeLabeledStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (subtreeFlags & 33554432
+        if (subtreeFlags & 4194304
             && ts.isIterationStatement(node, true)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeImportEquals(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20609,15 +20775,15 @@ var ts;
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeExpressionStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (node.expression.transformFlags & 16384) {
-            transformFlags |= 3072;
+        if (node.expression.transformFlags & 1024) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeModuleDeclaration(node, subtreeFlags) {
         var transformFlags = 3;
@@ -20626,26 +20792,26 @@ var ts;
             transformFlags |= subtreeFlags;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~839734613;
+        return transformFlags & ~574674241;
     }
     function computeVariableDeclarationList(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 268435456;
-        if (subtreeFlags & 67108864) {
-            transformFlags |= 3072;
+        var transformFlags = subtreeFlags | 33554432;
+        if (subtreeFlags & 8388608) {
+            transformFlags |= 192;
         }
         if (node.flags & 3) {
-            transformFlags |= 3072 | 33554432;
+            transformFlags |= 192 | 4194304;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~546309441;
     }
     function computeOther(node, kind, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var excludeFlags = 536892757;
+        var excludeFlags = 536872257;
         switch (kind) {
             case 119:
             case 189:
-                transformFlags |= 192;
+                transformFlags |= 16;
                 break;
             case 113:
             case 111:
@@ -20669,10 +20835,10 @@ var ts;
             case 250:
             case 251:
             case 252:
-                transformFlags |= 12;
+                transformFlags |= 4;
                 break;
             case 213:
-                transformFlags |= 48;
+                transformFlags |= 8;
             case 12:
             case 13:
             case 14:
@@ -20681,10 +20847,10 @@ var ts;
             case 181:
             case 258:
             case 114:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 195:
-                transformFlags |= 3072 | 134217728;
+                transformFlags |= 192 | 16777216;
                 break;
             case 118:
             case 132:
@@ -20721,73 +20887,79 @@ var ts;
                 excludeFlags = -3;
                 break;
             case 142:
-                transformFlags |= 16777216;
-                if (subtreeFlags & 262144) {
-                    transformFlags |= 1048576;
+                transformFlags |= 2097152;
+                if (subtreeFlags & 16384) {
+                    transformFlags |= 65536;
                 }
                 break;
             case 196:
+                transformFlags |= 192 | 524288;
+                break;
             case 259:
-                transformFlags |= 8388608;
+                transformFlags |= 8 | 1048576;
                 break;
-            case 174:
-                if (node.dotDotDotToken) {
-                    transformFlags |= 8388608;
-                }
             case 96:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 98:
-                transformFlags |= 262144;
+                transformFlags |= 16384;
                 break;
             case 172:
-            case 173:
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48 | 67108864;
+                transformFlags |= 192 | 8388608;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 8 | 1048576;
                 }
-                else {
-                    transformFlags |= 3072 | 67108864;
+                excludeFlags = 537396545;
+                break;
+            case 173:
+                transformFlags |= 192 | 8388608;
+                excludeFlags = 537396545;
+                break;
+            case 174:
+                transformFlags |= 192;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 524288;
                 }
                 break;
             case 145:
-                transformFlags |= 3 | 65536;
+                transformFlags |= 3 | 4096;
                 break;
             case 176:
-                excludeFlags = 554784085;
-                if (subtreeFlags & 16777216) {
-                    transformFlags |= 3072;
+                excludeFlags = 540087617;
+                if (subtreeFlags & 2097152) {
+                    transformFlags |= 192;
                 }
-                if (subtreeFlags & 1048576) {
-                    transformFlags |= 262144;
+                if (subtreeFlags & 65536) {
+                    transformFlags |= 16384;
                 }
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48;
+                if (subtreeFlags & 1048576) {
+                    transformFlags |= 8;
                 }
                 break;
             case 175:
             case 180:
-                excludeFlags = 545281365;
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 3072;
+                excludeFlags = 537396545;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 192;
                 }
                 break;
             case 209:
             case 210:
             case 211:
             case 212:
-                if (subtreeFlags & 33554432) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 4194304) {
+                    transformFlags |= 192;
                 }
                 break;
             case 261:
-                if (subtreeFlags & 524288) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 32768) {
+                    transformFlags |= 192;
                 }
                 break;
             case 216:
             case 214:
             case 215:
-                transformFlags |= 268435456;
+                transformFlags |= 33554432;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
@@ -20801,27 +20973,27 @@ var ts;
             case 179:
             case 180:
             case 175:
-                return 545281365;
+                return 537396545;
             case 230:
-                return 839734613;
+                return 574674241;
             case 144:
-                return 604001621;
+                return 536872257;
             case 185:
-                return 979719509;
+                return 601249089;
             case 184:
             case 225:
-                return 980243797;
+                return 601281857;
             case 224:
-                return 604001621;
+                return 546309441;
             case 226:
             case 197:
-                return 559895893;
+                return 539358529;
             case 150:
-                return 975983957;
+                return 601015617;
             case 149:
             case 151:
             case 152:
-                return 975983957;
+                return 601015617;
             case 118:
             case 132:
             case 129:
@@ -20839,9 +21011,14 @@ var ts;
             case 228:
                 return -3;
             case 176:
-                return 554784085;
+                return 540087617;
+            case 256:
+                return 537920833;
+            case 172:
+            case 173:
+                return 537396545;
             default:
-                return 536892757;
+                return 536872257;
         }
     }
     ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
@@ -20933,6 +21110,7 @@ var ts;
             getJsxElementAttributesType: getJsxElementAttributesType,
             getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
             isOptionalParameter: isOptionalParameter,
+            tryGetMemberInModuleExports: tryGetMemberInModuleExports,
             tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
                 return tryFindAmbientModule(moduleName, false);
             }
@@ -20942,6 +21120,7 @@ var ts;
         var intersectionTypes = ts.createMap();
         var stringLiteralTypes = ts.createMap();
         var numericLiteralTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
         var evolvingArrayTypes = [];
         var unknownSymbol = createSymbol(4 | 67108864, "unknown");
         var resolvingSymbol = createSymbol(67108864, "__resolving__");
@@ -20961,7 +21140,6 @@ var ts;
         var voidType = createIntrinsicType(1024, "void");
         var neverType = createIntrinsicType(8192, "never");
         var silentNeverType = createIntrinsicType(8192, "never");
-        var stringOrNumberType = getUnionType([stringType, numberType]);
         var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
         var emptyTypeLiteralSymbol = createSymbol(2048 | 67108864, "__type");
         emptyTypeLiteralSymbol.members = ts.createMap();
@@ -21511,6 +21689,7 @@ var ts;
                     if (!errorLocation ||
                         !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                             !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                             !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                         error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                     }
@@ -21587,6 +21766,16 @@ var ts;
                     return undefined;
             }
         }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            if (meaning === 1920) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
+                    return true;
+                }
+            }
+            return false;
+        }
         function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
             if (meaning & (107455 & ~1024)) {
                 var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
@@ -21692,28 +21881,28 @@ var ts;
             var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
             var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
             if (targetSymbol) {
-                var name_19 = specifier.propertyName || specifier.name;
-                if (name_19.text) {
+                var name_18 = specifier.propertyName || specifier.name;
+                if (name_18.text) {
                     if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                         return moduleSymbol;
                     }
                     var symbolFromVariable = void 0;
                     if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
-                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_19.text);
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_18.text);
                     }
                     else {
-                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_19.text);
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_18.text);
                     }
                     symbolFromVariable = resolveSymbol(symbolFromVariable);
-                    var symbolFromModule = getExportOfModule(targetSymbol, name_19.text);
-                    if (!symbolFromModule && allowSyntheticDefaultImports && name_19.text === "default") {
+                    var symbolFromModule = getExportOfModule(targetSymbol, name_18.text);
+                    if (!symbolFromModule && allowSyntheticDefaultImports && name_18.text === "default") {
                         symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                     }
                     var symbol = symbolFromModule && symbolFromVariable ?
                         combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                         symbolFromModule || symbolFromVariable;
                     if (!symbol) {
-                        error(name_19, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_19));
+                        error(name_18, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_18));
                     }
                     return symbol;
                 }
@@ -21938,6 +22127,12 @@ var ts;
         function getExportsOfModuleAsArray(moduleSymbol) {
             return symbolsToArray(getExportsOfModule(moduleSymbol));
         }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable[memberName];
+            }
+        }
         function getExportsOfSymbol(symbol) {
             return symbol.flags & 1536 ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
         }
@@ -22453,9 +22648,9 @@ var ts;
                     var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2));
                     if (!accessibleSymbolChain ||
                         needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
-                        var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
-                        if (parent_6) {
-                            walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), false);
+                        var parent_5 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
+                        if (parent_5) {
+                            walkSymbol(parent_5, getQualifiedLeftMeaning(meaning), false);
                         }
                     }
                     if (accessibleSymbolChain) {
@@ -22588,12 +22783,12 @@ var ts;
                             var length_1 = outerTypeParameters.length;
                             while (i < length_1) {
                                 var start = i;
-                                var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                 do {
                                     i++;
-                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
+                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                 if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
-                                    writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
+                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                     writePunctuation(writer, 22);
                                 }
                             }
@@ -23017,12 +23212,12 @@ var ts;
                         if (ts.isExternalModuleAugmentation(node)) {
                             return true;
                         }
-                        var parent_8 = getDeclarationContainer(node);
+                        var parent_7 = getDeclarationContainer(node);
                         if (!(ts.getCombinedModifierFlags(node) & 1) &&
-                            !(node.kind !== 234 && parent_8.kind !== 261 && ts.isInAmbientContext(parent_8))) {
-                            return isGlobalSourceFile(parent_8);
+                            !(node.kind !== 234 && parent_7.kind !== 261 && ts.isInAmbientContext(parent_7))) {
+                            return isGlobalSourceFile(parent_7);
                         }
-                        return isDeclarationVisible(parent_8);
+                        return isDeclarationVisible(parent_7);
                     case 147:
                     case 146:
                     case 151:
@@ -23178,15 +23373,15 @@ var ts;
             return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, false);
         }
         function isComputedNonLiteralName(name) {
-            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression.kind);
+            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression);
         }
         function getRestType(source, properties, symbol) {
             ts.Debug.assert(!!(source.flags & 32768), "Rest types only support object types right now.");
             var members = ts.createMap();
             var names = ts.createMap();
             for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
-                var name_20 = properties_2[_i];
-                names[ts.getTextOfPropertyName(name_20)] = true;
+                var name_19 = properties_2[_i];
+                names[ts.getTextOfPropertyName(name_19)] = true;
             }
             for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
                 var prop = _b[_a];
@@ -23224,26 +23419,26 @@ var ts;
                     var literalMembers = [];
                     for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                         var element = _a[_i];
-                        if (element.kind !== 198 && !element.dotDotDotToken) {
+                        if (!element.dotDotDotToken) {
                             literalMembers.push(element.propertyName || element.name);
                         }
                     }
                     type = getRestType(parentType, literalMembers, declaration.symbol);
                 }
                 else {
-                    var name_21 = declaration.propertyName || declaration.name;
-                    if (isComputedNonLiteralName(name_21)) {
+                    var name_20 = declaration.propertyName || declaration.name;
+                    if (isComputedNonLiteralName(name_20)) {
                         return anyType;
                     }
                     if (declaration.initializer) {
                         getContextualType(declaration.initializer);
                     }
-                    var text = ts.getTextOfPropertyName(name_21);
+                    var text = ts.getTextOfPropertyName(name_20);
                     type = getTypeOfPropertyOfType(parentType, text) ||
                         isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1) ||
                         getIndexTypeOfType(parentType, 0);
                     if (!type) {
-                        error(name_21, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_21));
+                        error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_20));
                         return unknownType;
                     }
                 }
@@ -23277,29 +23472,9 @@ var ts;
                 type;
         }
         function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
-            if (jsDocType) {
-                return getTypeFromTypeNode(jsDocType);
-            }
-        }
-        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var typeTag = ts.getJSDocTypeTag(declaration);
-            if (typeTag && typeTag.typeExpression) {
-                return typeTag.typeExpression.type;
-            }
-            if (declaration.kind === 223 &&
-                declaration.parent.kind === 224 &&
-                declaration.parent.parent.kind === 205) {
-                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
-                if (annotation && annotation.typeExpression) {
-                    return annotation.typeExpression.type;
-                }
-            }
-            else if (declaration.kind === 144) {
-                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
-                if (paramTag && paramTag.typeExpression) {
-                    return paramTag.typeExpression.type;
-                }
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
             }
             return undefined;
         }
@@ -23322,7 +23497,8 @@ var ts;
                 }
             }
             if (declaration.parent.parent.kind === 212) {
-                return stringType;
+                var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
+                return indexType.flags & (16384 | 262144) ? indexType : stringType;
             }
             if (declaration.parent.parent.kind === 213) {
                 return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
@@ -23333,7 +23509,8 @@ var ts;
             if (declaration.type) {
                 return addOptionality(getTypeFromTypeNode(declaration.type), declaration.questionToken && includeOptionality);
             }
-            if (declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
+            if ((compilerOptions.noImplicitAny || declaration.flags & 2097152) &&
+                declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
                 !(ts.getCombinedModifierFlags(declaration) & 1) && !ts.isInAmbientContext(declaration)) {
                 if (!(ts.getCombinedNodeFlags(declaration) & 2) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                     return autoType;
@@ -23472,7 +23649,7 @@ var ts;
                 if (declaration.kind === 240) {
                     return links.type = checkExpression(declaration.expression);
                 }
-                if (declaration.flags & 2097152 && declaration.kind === 285 && declaration.typeExpression) {
+                if (declaration.flags & 2097152 && declaration.kind === 286 && declaration.typeExpression) {
                     return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
                 }
                 if (!pushTypeResolution(symbol, 0)) {
@@ -23482,9 +23659,9 @@ var ts;
                 if (declaration.kind === 192 ||
                     declaration.kind === 177 && declaration.parent.kind === 192) {
                     if (declaration.flags & 2097152) {
-                        var typeTag = ts.getJSDocTypeTag(declaration.parent);
-                        if (typeTag && typeTag.typeExpression) {
-                            return links.type = getTypeFromTypeNode(typeTag.typeExpression.type);
+                        var jsdocType = ts.getJSDocType(declaration.parent);
+                        if (jsdocType) {
+                            return links.type = getTypeFromTypeNode(jsdocType);
                         }
                     }
                     var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 ?
@@ -23785,6 +23962,13 @@ var ts;
                 }
                 baseType = getReturnTypeOfSignature(constructors[0]);
             }
+            var valueDecl = type.symbol.valueDeclaration;
+            if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
+                var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
+                if (augTag) {
+                    baseType = getTypeFromTypeNode(augTag.typeExpression.type);
+                }
+            }
             if (baseType === unknownType) {
                 return;
             }
@@ -23793,7 +23977,7 @@ var ts;
                 return;
             }
             if (type === baseType || hasBaseType(baseType, type)) {
-                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
+                error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                 return;
             }
             if (type.resolvedBaseTypes === emptyArray) {
@@ -23895,7 +24079,7 @@ var ts;
                 if (!pushTypeResolution(symbol, 2)) {
                     return unknownType;
                 }
-                var declaration = ts.getDeclarationOfKind(symbol, 284);
+                var declaration = ts.getDeclarationOfKind(symbol, 285);
                 var type = void 0;
                 if (declaration) {
                     if (declaration.jsDocTypeLiteral) {
@@ -24382,6 +24566,7 @@ var ts;
             var members = ts.createMap();
             var stringIndexInfo;
             var numberIndexInfo;
+            setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
             var typeParameter = getTypeParameterFromMappedType(type);
             var constraintType = getConstraintTypeFromMappedType(type);
             var templateType = getTemplateTypeFromMappedType(type);
@@ -24426,6 +24611,9 @@ var ts;
                     instantiateType(getTypeFromTypeNode(type.declaration.type), type.mapper || identityMapper) :
                     unknownType);
         }
+        function getErasedTemplateTypeFromMappedType(type) {
+            return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
+        }
         function isGenericMappedType(type) {
             if (getObjectFlags(type) & 32) {
                 var constraintType = getConstraintTypeFromMappedType(type);
@@ -24513,14 +24701,18 @@ var ts;
             }
             return type.resolvedApparentType;
         }
+        function getApparentTypeOfIndexedAccess(type) {
+            return getIndexTypeOfType(getApparentType(type.objectType), 0) || type;
+        }
         function getApparentType(type) {
-            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) : type;
-            return t.flags & 34 ? globalStringType :
+            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) :
+                type.flags & 524288 ? getApparentTypeOfIndexedAccess(type) :
+                    type;
+            return t.flags & 262178 ? globalStringType :
                 t.flags & 340 ? globalNumberType :
                     t.flags & 136 ? globalBooleanType :
                         t.flags & 512 ? getGlobalESSymbolType() :
-                            t.flags & 262144 ? stringOrNumberType :
-                                t;
+                            t;
         }
         function createUnionOrIntersectionProperty(containingType, name) {
             var types = containingType.types;
@@ -24693,13 +24885,16 @@ var ts;
                 if (node.type && node.type.kind === 273) {
                     return true;
                 }
-                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
-                if (paramTag) {
-                    if (paramTag.isBracketed) {
-                        return true;
-                    }
-                    if (paramTag.typeExpression) {
-                        return paramTag.typeExpression.type.kind === 273;
+                var paramTags = ts.getJSDocParameterTags(node);
+                if (paramTags) {
+                    for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
+                        var paramTag = paramTags_1[_i];
+                        if (paramTag.isBracketed) {
+                            return true;
+                        }
+                        if (paramTag.typeExpression) {
+                            return paramTag.typeExpression.type.kind === 273;
+                        }
                     }
                 }
             }
@@ -25534,10 +25729,14 @@ var ts;
         }
         function getIndexType(type) {
             return type.flags & 16384 ? getIndexTypeForTypeParameter(type) :
-                type.flags & 1 || getIndexInfoOfType(type, 0) ? stringOrNumberType :
-                    getIndexInfoOfType(type, 1) ? getUnionType([numberType, getLiteralTypeFromPropertyNames(type)]) :
+                getObjectFlags(type) & 32 ? getConstraintTypeFromMappedType(type) :
+                    type.flags & 1 || getIndexInfoOfType(type, 0) ? stringType :
                         getLiteralTypeFromPropertyNames(type);
         }
+        function getIndexTypeOrString(type) {
+            var indexType = getIndexType(type);
+            return indexType !== neverType ? indexType : stringType;
+        }
         function getTypeFromTypeOperatorNode(node) {
             var links = getNodeLinks(node);
             if (!links.resolvedType) {
@@ -25551,10 +25750,6 @@ var ts;
             type.indexType = indexType;
             return type;
         }
-        function getIndexedAccessTypeForTypeParameter(objectType, indexType) {
-            var indexedAccessTypes = indexType.resolvedIndexedAccessTypes || (indexType.resolvedIndexedAccessTypes = []);
-            return indexedAccessTypes[objectType.id] || (indexedAccessTypes[objectType.id] = createIndexedAccessType(objectType, indexType));
-        }
         function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
             var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
             var propName = indexType.flags & (32 | 64 | 256) ?
@@ -25577,7 +25772,7 @@ var ts;
                     return getTypeOfSymbol(prop);
                 }
             }
-            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 34 | 340 | 512)) {
+            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 | 340 | 512)) {
                 if (isTypeAny(objectType)) {
                     return anyType;
                 }
@@ -25617,20 +25812,38 @@ var ts;
             }
             return unknownType;
         }
+        function getIndexedAccessForMappedType(type, indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
+            if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
+                error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
+                return unknownType;
+            }
+            var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
+            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
+            return addOptionality(instantiateType(getTemplateTypeFromMappedType(type), templateMapper), !!type.declaration.questionToken);
+        }
         function getIndexedAccessType(objectType, indexType, accessNode) {
-            if (indexType.flags & 16384) {
-                if (accessNode && !isTypeAssignableTo(getConstraintOfTypeParameter(indexType) || emptyObjectType, getIndexType(objectType))) {
-                    error(accessNode, ts.Diagnostics.Type_0_is_not_constrained_to_keyof_1, typeToString(indexType), typeToString(objectType));
-                    return unknownType;
+            if (indexType.flags & 16384 ||
+                objectType.flags & 16384 && indexType.flags & 262144 ||
+                isGenericMappedType(objectType)) {
+                if (accessNode) {
+                    if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
+                        error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+                        return unknownType;
+                    }
+                }
+                if (isGenericMappedType(objectType)) {
+                    return getIndexedAccessForMappedType(objectType, indexType, accessNode);
                 }
-                return getIndexedAccessTypeForTypeParameter(objectType, indexType);
+                var id = objectType.id + "," + indexType.id;
+                return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
             }
-            var apparentType = getApparentType(objectType);
+            var apparentObjectType = getApparentType(objectType);
             if (indexType.flags & 65536 && !(indexType.flags & 8190)) {
                 var propTypes = [];
                 for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                     var t = _a[_i];
-                    var propType = getPropertyTypeForIndexType(apparentType, t, accessNode, false);
+                    var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, false);
                     if (propType === unknownType) {
                         return unknownType;
                     }
@@ -25638,7 +25851,7 @@ var ts;
                 }
                 return getUnionType(propTypes);
             }
-            return getPropertyTypeForIndexType(apparentType, indexType, accessNode, true);
+            return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, true);
         }
         function getTypeFromIndexedAccessTypeNode(node) {
             var links = getNodeLinks(node);
@@ -25655,6 +25868,7 @@ var ts;
                 type.aliasSymbol = getAliasSymbolForTypeNode(node);
                 type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                 links.resolvedType = type;
+                getConstraintTypeFromMappedType(type);
             }
             return links.resolvedType;
         }
@@ -25823,18 +26037,18 @@ var ts;
                     return nullType;
                 case 129:
                     return neverType;
-                case 288:
-                    return nullType;
                 case 289:
-                    return undefinedType;
+                    return nullType;
                 case 290:
+                    return undefinedType;
+                case 291:
                     return neverType;
                 case 167:
                 case 98:
                     return getTypeFromThisTypeNode(node);
                 case 171:
                     return getTypeFromLiteralTypeNode(node);
-                case 287:
+                case 288:
                     return getTypeFromLiteralTypeNode(node.literal);
                 case 157:
                 case 272:
@@ -25867,7 +26081,7 @@ var ts;
                 case 158:
                 case 159:
                 case 161:
-                case 286:
+                case 287:
                 case 274:
                     return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                 case 168:
@@ -26028,6 +26242,28 @@ var ts;
             return result;
         }
         function instantiateMappedType(type, mapper) {
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 262144) {
+                var typeParameter_1 = constraintType.type;
+                var mappedTypeParameter = mapper(typeParameter_1);
+                if (typeParameter_1 !== mappedTypeParameter) {
+                    return mapType(mappedTypeParameter, function (t) {
+                        if (isMappableType(t)) {
+                            var replacementMapper = createUnaryTypeMapper(typeParameter_1, t);
+                            var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
+                            combinedMapper.mappedTypes = mapper.mappedTypes;
+                            return instantiateMappedObjectType(type, combinedMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateMappedObjectType(type, mapper);
+        }
+        function isMappableType(type) {
+            return type.flags & (16384 | 32768 | 131072 | 524288);
+        }
+        function instantiateMappedObjectType(type, mapper) {
             var result = createObjectType(32 | 64, type.symbol);
             result.declaration = type.declaration;
             result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
@@ -26386,7 +26622,7 @@ var ts;
                 return false;
             if (target.flags & 1 || source.flags & 8192)
                 return true;
-            if (source.flags & 34 && target.flags & 2)
+            if (source.flags & 262178 && target.flags & 2)
                 return true;
             if (source.flags & 340 && target.flags & 4)
                 return true;
@@ -26510,11 +26746,6 @@ var ts;
                 }
                 if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                     return -1;
-                if (source.flags & 262144) {
-                    if (maybeTypeOfKind(target, 2) && maybeTypeOfKind(target, 4)) {
-                        return -1;
-                    }
-                }
                 if (getObjectFlags(source) & 128 && source.flags & 1048576) {
                     if (hasExcessProperties(source, target, reportErrors)) {
                         if (reportErrors) {
@@ -26554,10 +26785,21 @@ var ts;
                     }
                 }
                 if (target.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(target);
-                    if (constraint && constraint.flags & 262144) {
-                        if (result = isRelatedTo(source, constraint, reportErrors)) {
-                            return result;
+                    if (getObjectFlags(source) & 32 && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
+                        if (!source.declaration.questionToken) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(target);
+                        if (constraint && constraint.flags & 262144) {
+                            if (result = isRelatedTo(source, constraint, reportErrors)) {
+                                return result;
+                            }
                         }
                     }
                 }
@@ -26574,16 +26816,32 @@ var ts;
                         }
                     }
                 }
+                else if (target.flags & 524288) {
+                    if (source.flags & 524288 && source.indexType === target.indexType) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                }
                 if (source.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(source);
-                    if (!constraint || constraint.flags & 1) {
-                        constraint = emptyObjectType;
-                    }
-                    constraint = getTypeWithThisArgument(constraint, source);
-                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
-                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
-                        errorInfo = saveErrorInfo;
-                        return result;
+                    if (getObjectFlags(target) & 32 && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
+                        var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
+                        var templateType = getTemplateTypeFromMappedType(target);
+                        if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(source);
+                        if (!constraint || constraint.flags & 1) {
+                            constraint = emptyObjectType;
+                        }
+                        constraint = getTypeWithThisArgument(constraint, source);
+                        var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+                        if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
+                        }
                     }
                 }
                 else {
@@ -26592,22 +26850,12 @@ var ts;
                             return result;
                         }
                     }
-                    if (isGenericMappedType(target)) {
-                        if (isGenericMappedType(source)) {
-                            if ((result = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) &&
-                                (result = isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors))) {
-                                return result;
-                            }
-                        }
-                    }
-                    else {
-                        var apparentSource = getApparentType(source);
-                        if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
-                            var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
-                            if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
-                                errorInfo = saveErrorInfo;
-                                return result;
-                            }
+                    var apparentSource = getApparentType(source);
+                    if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
+                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
                         }
                     }
                 }
@@ -26814,6 +27062,9 @@ var ts;
                 if (expandingFlags === 3) {
                     result = 1;
                 }
+                else if (isGenericMappedType(source) || isGenericMappedType(target)) {
+                    result = mappedTypeRelatedTo(source, target, reportErrors);
+                }
                 else {
                     result = propertiesRelatedTo(source, target, reportErrors);
                     if (result) {
@@ -26841,6 +27092,33 @@ var ts;
                 }
                 return result;
             }
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                if (isGenericMappedType(target)) {
+                    if (isGenericMappedType(source)) {
+                        var result_2;
+                        if (relation === identityRelation) {
+                            var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
+                            var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
+                            if (readonlyMatches && optionalMatches) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                        else {
+                            if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (relation !== identityRelation && isEmptyObjectType(resolveStructuredTypeMembers(target))) {
+                    return -1;
+                }
+                return 0;
+            }
             function propertiesRelatedTo(source, target, reportErrors) {
                 if (relation === identityRelation) {
                     return propertiesIdenticalTo(source, target);
@@ -27316,7 +27594,7 @@ var ts;
                 return type;
             }
             var types = [type];
-            if (flags & 34)
+            if (flags & 262178)
                 types.push(emptyStringType);
             if (flags & 340)
                 types.push(zeroType);
@@ -27651,19 +27929,6 @@ var ts;
                     }
                 }
                 else {
-                    if (getObjectFlags(target) & 32) {
-                        var constraintType = getConstraintTypeFromMappedType(target);
-                        if (getObjectFlags(source) & 32) {
-                            inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
-                            inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                        if (constraintType.flags & 16384) {
-                            inferFromTypes(getIndexType(source), constraintType);
-                            inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                    }
                     source = getApparentType(source);
                     if (source.flags & 32768) {
                         if (isInProcess(source, target)) {
@@ -27684,14 +27949,30 @@ var ts;
                         sourceStack[depth] = source;
                         targetStack[depth] = target;
                         depth++;
-                        inferFromProperties(source, target);
-                        inferFromSignatures(source, target, 0);
-                        inferFromSignatures(source, target, 1);
-                        inferFromIndexTypes(source, target);
+                        inferFromObjectTypes(source, target);
                         depth--;
                     }
                 }
             }
+            function inferFromObjectTypes(source, target) {
+                if (getObjectFlags(target) & 32) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (getObjectFlags(source) & 32) {
+                        inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
+                        inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                    if (constraintType.flags & 16384) {
+                        inferFromTypes(getIndexType(source), constraintType);
+                        inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                }
+                inferFromProperties(source, target);
+                inferFromSignatures(source, target, 0);
+                inferFromSignatures(source, target, 1);
+                inferFromIndexTypes(source, target);
+            }
             function inferFromProperties(source, target) {
                 var properties = getPropertiesOfObjectType(target);
                 for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
@@ -28026,7 +28307,7 @@ var ts;
         }
         function getTypeWithDefault(type, defaultExpression) {
             if (defaultExpression) {
-                var defaultType = checkExpression(defaultExpression);
+                var defaultType = getTypeOfExpression(defaultExpression);
                 return getUnionType([getTypeWithFacts(type, 131072), defaultType]);
             }
             return type;
@@ -28049,7 +28330,7 @@ var ts;
         function getAssignedTypeOfBinaryExpression(node) {
             return node.parent.kind === 175 || node.parent.kind === 257 ?
                 getTypeWithDefault(getAssignedType(node), node.right) :
-                checkExpression(node.right);
+                getTypeOfExpression(node.right);
         }
         function getAssignedTypeOfArrayLiteralElement(node, element) {
             return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
@@ -28097,7 +28378,7 @@ var ts;
         }
         function getTypeOfInitializer(node) {
             var links = getNodeLinks(node);
-            return links.resolvedType || checkExpression(node);
+            return links.resolvedType || getTypeOfExpression(node);
         }
         function getInitialTypeOfVariableDeclaration(node) {
             if (node.initializer) {
@@ -28150,7 +28431,7 @@ var ts;
         }
         function getTypeOfSwitchClause(clause) {
             if (clause.kind === 253) {
-                var caseType = getRegularTypeOfLiteralType(checkExpression(clause.expression));
+                var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
                 return isUnitType(caseType) ? caseType : undefined;
             }
             return neverType;
@@ -28230,7 +28511,7 @@ var ts;
             return evolvingArrayTypes[elementType.id] || (evolvingArrayTypes[elementType.id] = createEvolvingArrayType(elementType));
         }
         function addEvolvingArrayElementType(evolvingArrayType, node) {
-            var elementType = getBaseTypeOfLiteralType(checkExpression(node));
+            var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
             return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
         }
         function createFinalArrayType(elementType) {
@@ -28278,7 +28559,7 @@ var ts;
                 parent.parent.operatorToken.kind === 57 &&
                 parent.parent.left === parent &&
                 !ts.isAssignmentTarget(parent.parent) &&
-                isTypeAnyOrAllConstituentTypesHaveKind(checkExpression(parent.argumentExpression), 340 | 2048);
+                isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 | 2048);
             return isLengthPushOrUnshift || isElementAssignment;
         }
         function maybeTypePredicateCall(node) {
@@ -28416,7 +28697,7 @@ var ts;
                             }
                         }
                         else {
-                            var indexType = checkExpression(node.left.argumentExpression);
+                            var indexType = getTypeOfExpression(node.left.argumentExpression);
                             if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 | 2048)) {
                                 evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                             }
@@ -28597,7 +28878,7 @@ var ts;
                 if (operator === 32 || operator === 34) {
                     assumeTrue = !assumeTrue;
                 }
-                var valueType = checkExpression(value);
+                var valueType = getTypeOfExpression(value);
                 if (valueType.flags & 6144) {
                     if (!strictNullChecks) {
                         return type;
@@ -28669,7 +28950,7 @@ var ts;
                     }
                     return type;
                 }
-                var rightType = checkExpression(expr.right);
+                var rightType = getTypeOfExpression(expr.right);
                 if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                     return type;
                 }
@@ -28697,16 +28978,16 @@ var ts;
                     }
                 }
                 if (targetType) {
-                    return getNarrowedType(type, targetType, assumeTrue);
+                    return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
                 }
                 return type;
             }
-            function getNarrowedType(type, candidate, assumeTrue) {
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
                 if (!assumeTrue) {
-                    return filterType(type, function (t) { return !isTypeInstanceOf(t, candidate); });
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
                 }
                 if (type.flags & 65536) {
-                    var assignableType = filterType(type, function (t) { return isTypeInstanceOf(t, candidate); });
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                     if (!(assignableType.flags & 8192)) {
                         return assignableType;
                     }
@@ -28733,7 +29014,7 @@ var ts;
                     var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                     if (predicateArgument) {
                         if (isMatchingReference(reference, predicateArgument)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, predicateArgument)) {
                             return declaredType;
@@ -28746,7 +29027,7 @@ var ts;
                         var accessExpression = invokedExpression;
                         var possibleReference = ts.skipParentheses(accessExpression.expression);
                         if (isMatchingReference(reference, possibleReference)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, possibleReference)) {
                             return declaredType;
@@ -28782,7 +29063,7 @@ var ts;
                     location = location.parent;
                 }
                 if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
-                    var type = checkExpression(location);
+                    var type = getTypeOfExpression(location);
                     if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                         return type;
                     }
@@ -29117,9 +29398,9 @@ var ts;
             return anyType;
         }
         function getTypeForThisExpressionFromJSDoc(node) {
-            var typeTag = ts.getJSDocTypeTag(node);
-            if (typeTag && typeTag.typeExpression && typeTag.typeExpression.type && typeTag.typeExpression.type.kind === 274) {
-                var jsDocFunctionType = typeTag.typeExpression.type;
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 274) {
+                var jsDocFunctionType = jsdocType;
                 if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277) {
                     return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
                 }
@@ -29304,11 +29585,11 @@ var ts;
                 }
                 if (ts.isBindingPattern(declaration.parent)) {
                     var parentDeclaration = declaration.parent.parent;
-                    var name_22 = declaration.propertyName || declaration.name;
+                    var name_21 = declaration.propertyName || declaration.name;
                     if (ts.isVariableLike(parentDeclaration) &&
                         parentDeclaration.type &&
-                        !ts.isBindingPattern(name_22)) {
-                        var text = ts.getTextOfPropertyName(name_22);
+                        !ts.isBindingPattern(name_21)) {
+                        var text = ts.getTextOfPropertyName(name_21);
                         if (text) {
                             return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                         }
@@ -29387,13 +29668,13 @@ var ts;
                     return undefined;
                 }
                 if (node === binaryExpression.right) {
-                    return checkExpression(binaryExpression.left);
+                    return getTypeOfExpression(binaryExpression.left);
                 }
             }
             else if (operator === 53) {
                 var type = getContextualType(binaryExpression);
                 if (!type && node === binaryExpression.right) {
-                    type = checkExpression(binaryExpression.left);
+                    type = getTypeOfExpression(binaryExpression.left);
                 }
                 return type;
             }
@@ -29699,7 +29980,7 @@ var ts;
             var links = getNodeLinks(node.expression);
             if (!links.resolvedType) {
                 links.resolvedType = checkExpression(node.expression);
-                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 34 | 512)) {
+                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 262178 | 512)) {
                     error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
                 }
                 else {
@@ -29708,10 +29989,10 @@ var ts;
             }
             return links.resolvedType;
         }
-        function getObjectLiteralIndexInfo(node, properties, kind) {
+        function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
             var propTypes = [];
             for (var i = 0; i < properties.length; i++) {
-                if (kind === 0 || isNumericName(node.properties[i].name)) {
+                if (kind === 0 || isNumericName(propertyNodes[i + offset].name)) {
                     propTypes.push(getTypeOfSymbol(properties[i]));
                 }
             }
@@ -29732,8 +30013,9 @@ var ts;
             var patternWithComputedProperties = false;
             var hasComputedStringProperty = false;
             var hasComputedNumberProperty = false;
-            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
-                var memberDecl = _a[_i];
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
                 var member = memberDecl.symbol;
                 if (memberDecl.kind === 257 ||
                     memberDecl.kind === 258 ||
@@ -29794,6 +30076,7 @@ var ts;
                         return unknownType;
                     }
                     spread = getSpreadType(spread, type, false);
+                    offset = i + 1;
                     continue;
                 }
                 else {
@@ -29814,8 +30097,8 @@ var ts;
                 propertiesArray.push(member);
             }
             if (contextualTypeHasPattern) {
-                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
-                    var prop = _c[_b];
+                for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
                     if (!propertiesTable[prop.name]) {
                         if (!(prop.flags & 536870912)) {
                             error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
@@ -29835,8 +30118,8 @@ var ts;
             }
             return createObjectLiteralType();
             function createObjectLiteralType() {
-                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 0) : undefined;
-                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 1) : undefined;
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1) : undefined;
                 var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
                 var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576;
                 result.flags |= 4194304 | freshObjectLiteralFlag | (typeFlags & 14680064);
@@ -30378,7 +30661,7 @@ var ts;
                         if (node.kind === 212 &&
                             child === node.statement &&
                             getForInVariableSymbol(node) === symbol &&
-                            hasNumericPropertyNames(checkExpression(node.expression))) {
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                             return true;
                         }
                         child = node;
@@ -30471,19 +30754,19 @@ var ts;
             for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
                 var signature = signatures_2[_i];
                 var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
-                var parent_9 = signature.declaration && signature.declaration.parent;
+                var parent_8 = signature.declaration && signature.declaration.parent;
                 if (!lastSymbol || symbol === lastSymbol) {
-                    if (lastParent && parent_9 === lastParent) {
+                    if (lastParent && parent_8 === lastParent) {
                         index++;
                     }
                     else {
-                        lastParent = parent_9;
+                        lastParent = parent_8;
                         index = cutoffIndex;
                     }
                 }
                 else {
                     index = cutoffIndex = result.length;
-                    lastParent = parent_9;
+                    lastParent = parent_8;
                 }
                 lastSymbol = symbol;
                 if (signature.hasLiteralTypes) {
@@ -31451,7 +31734,7 @@ var ts;
             if (!node.possiblyExhaustive) {
                 return false;
             }
-            var type = checkExpression(node.expression);
+            var type = getTypeOfExpression(node.expression);
             if (!isLiteralType(type)) {
                 return false;
             }
@@ -31787,10 +32070,10 @@ var ts;
             if (leftType === silentNeverType || rightType === silentNeverType) {
                 return silentNeverType;
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 | 340 | 512)) {
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 | 512))) {
                 error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             return booleanType;
@@ -31799,20 +32082,20 @@ var ts;
             var properties = node.properties;
             for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                 var p = properties_5[_i];
-                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p);
+                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
             }
             return sourceType;
         }
-        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property) {
+        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
             if (property.kind === 257 || property.kind === 258) {
-                var name_23 = property.name;
-                if (name_23.kind === 142) {
-                    checkComputedPropertyName(name_23);
+                var name_22 = property.name;
+                if (name_22.kind === 142) {
+                    checkComputedPropertyName(name_22);
                 }
-                if (isComputedNonLiteralName(name_23)) {
+                if (isComputedNonLiteralName(name_22)) {
                     return undefined;
                 }
-                var text = ts.getTextOfPropertyName(name_23);
+                var text = ts.getTextOfPropertyName(name_22);
                 var type = isTypeAny(objectLiteralType)
                     ? objectLiteralType
                     : getTypeOfPropertyOfType(objectLiteralType, text) ||
@@ -31827,13 +32110,18 @@ var ts;
                     }
                 }
                 else {
-                    error(name_23, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_23));
+                    error(name_22, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_22));
                 }
             }
             else if (property.kind === 259) {
-                if (property.expression.kind !== 70) {
-                    error(property.expression, ts.Diagnostics.An_object_rest_element_must_be_an_identifier);
+                var nonRestNames = [];
+                if (allProperties) {
+                    for (var i = 0; i < allProperties.length - 1; i++) {
+                        nonRestNames.push(allProperties[i].name);
+                    }
                 }
+                var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                return checkDestructuringAssignment(property.expression, type);
             }
             else {
                 error(property, ts.Diagnostics.Property_assignment_expected);
@@ -31918,7 +32206,10 @@ var ts;
         }
         function checkReferenceAssignment(target, sourceType, contextualMapper) {
             var targetType = checkExpression(target, contextualMapper);
-            if (checkReferenceExpression(target, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
+            var error = target.parent.kind === 259 ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            if (checkReferenceExpression(target, error)) {
                 checkTypeAssignableTo(sourceType, targetType, target, undefined);
             }
             return sourceType;
@@ -32055,7 +32346,7 @@ var ts;
                         resultType = numberType;
                     }
                     else {
-                        if (isTypeOfKind(leftType, 34) || isTypeOfKind(rightType, 34)) {
+                        if (isTypeOfKind(leftType, 262178) || isTypeOfKind(rightType, 262178)) {
                             resultType = stringType;
                         }
                         else if (isTypeAny(leftType) || isTypeAny(rightType)) {
@@ -32078,6 +32369,8 @@ var ts;
                 case 29:
                 case 30:
                     if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(leftType);
+                        rightType = getBaseTypeOfLiteralType(rightType);
                         if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                             reportOperatorError();
                         }
@@ -32251,7 +32544,7 @@ var ts;
         function checkDeclarationInitializer(declaration) {
             var type = checkExpressionCached(declaration.initializer);
             return ts.getCombinedNodeFlags(declaration) & 2 ||
-                ts.getCombinedModifierFlags(declaration) & 64 ||
+                ts.getCombinedModifierFlags(declaration) & 64 && !ts.isParameterPropertyDeclaration(declaration) ||
                 isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
         }
         function isLiteralContextualType(contextualType) {
@@ -32263,7 +32556,7 @@ var ts;
                     }
                     contextualType = apparentType;
                 }
-                return maybeTypeOfKind(contextualType, 480);
+                return maybeTypeOfKind(contextualType, (480 | 262144));
             }
             return false;
         }
@@ -32300,6 +32593,16 @@ var ts;
             }
             return type;
         }
+        function getTypeOfExpression(node) {
+            if (node.kind === 179 && node.expression.kind !== 96) {
+                var funcType = checkNonNullExpression(node.expression);
+                var signature = getSingleCallSignature(funcType);
+                if (signature && !signature.typeParameters) {
+                    return getReturnTypeOfSignature(signature);
+                }
+            }
+            return checkExpression(node);
+        }
         function checkExpression(node, contextualMapper) {
             var type;
             if (node.kind === 141) {
@@ -32480,9 +32783,9 @@ var ts;
                 else if (parameterName) {
                     var hasReportedError = false;
                     for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
-                        var name_24 = _a[_i].name;
-                        if (ts.isBindingPattern(name_24) &&
-                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_24, parameterName, typePredicate.parameterName)) {
+                        var name_23 = _a[_i].name;
+                        if (ts.isBindingPattern(name_23) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_23, parameterName, typePredicate.parameterName)) {
                             hasReportedError = true;
                             break;
                         }
@@ -32502,9 +32805,9 @@ var ts;
                 case 158:
                 case 149:
                 case 148:
-                    var parent_10 = node.parent;
-                    if (node === parent_10.type) {
-                        return parent_10;
+                    var parent_9 = node.parent;
+                    if (node === parent_9.type) {
+                        return parent_9;
                     }
             }
         }
@@ -32514,15 +32817,15 @@ var ts;
                 if (ts.isOmittedExpression(element)) {
                     continue;
                 }
-                var name_25 = element.name;
-                if (name_25.kind === 70 &&
-                    name_25.text === predicateVariableName) {
+                var name_24 = element.name;
+                if (name_24.kind === 70 &&
+                    name_24.text === predicateVariableName) {
                     error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                     return true;
                 }
-                else if (name_25.kind === 173 ||
-                    name_25.kind === 172) {
-                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_25, predicateVariableNode, predicateVariableName)) {
+                else if (name_24.kind === 173 ||
+                    name_24.kind === 172) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_24, predicateVariableNode, predicateVariableName)) {
                         return true;
                     }
                 }
@@ -32753,8 +33056,8 @@ var ts;
                     if (superCallShouldBeFirst) {
                         var statements = node.body.statements;
                         var superCallStatement = void 0;
-                        for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
-                            var statement = statements_2[_i];
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
                             if (statement.kind === 207 && ts.isSuperCall(statement.expression)) {
                                 superCallStatement = statement;
                                 break;
@@ -32897,7 +33200,7 @@ var ts;
             var type = getTypeFromMappedTypeNode(node);
             var constraintType = getConstraintTypeFromMappedType(type);
             var keyType = constraintType.flags & 16384 ? getApparentTypeOfTypeParameter(constraintType) : constraintType;
-            checkTypeAssignableTo(keyType, stringOrNumberType, node.typeParameter.constraint);
+            checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
         }
         function isPrivateWithinAmbient(node) {
             return (ts.getModifierFlags(node) & 8) && ts.isInAmbientContext(node);
@@ -33141,10 +33444,10 @@ var ts;
                     case 229:
                         return 2097152 | 1048576;
                     case 234:
-                        var result_2 = 0;
+                        var result_3 = 0;
                         var target = resolveAlias(getSymbolOfNode(d));
-                        ts.forEach(target.declarations, function (d) { result_2 |= getDeclarationSpaces(d); });
-                        return result_2;
+                        ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
+                        return result_3;
                     default:
                         return 1048576;
                 }
@@ -33683,8 +33986,8 @@ var ts;
                                 container.kind === 230 ||
                                 container.kind === 261);
                         if (!namesShareScope) {
-                            var name_26 = symbolToString(localDeclarationSymbol);
-                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_26, name_26);
+                            var name_25 = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_25, name_25);
                         }
                     }
                 }
@@ -33755,13 +34058,13 @@ var ts;
                 if (node.propertyName && node.propertyName.kind === 142) {
                     checkComputedPropertyName(node.propertyName);
                 }
-                var parent_11 = node.parent.parent;
-                var parentType = getTypeForBindingElementParent(parent_11);
-                var name_27 = node.propertyName || node.name;
-                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_27));
+                var parent_10 = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent_10);
+                var name_26 = node.propertyName || node.name;
+                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_26));
                 markPropertyAsReferenced(property);
-                if (parent_11.initializer && property && getParentOfSymbol(property)) {
-                    checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
+                if (parent_10.initializer && property && getParentOfSymbol(property)) {
+                    checkClassPropertyAccess(parent_10, parent_10.initializer, parentType, property);
                 }
             }
             if (ts.isBindingPattern(node.name)) {
@@ -33922,6 +34225,7 @@ var ts;
         }
         function checkForInStatement(node) {
             checkGrammarForInOrForOfStatement(node);
+            var rightType = checkNonNullExpression(node.expression);
             if (node.initializer.kind === 224) {
                 var variable = node.initializer.declarations[0];
                 if (variable && ts.isBindingPattern(variable.name)) {
@@ -33935,15 +34239,14 @@ var ts;
                 if (varExpr.kind === 175 || varExpr.kind === 176) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
                 }
-                else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34)) {
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
                 }
                 else {
                     checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
                 }
             }
-            var rightType = checkNonNullExpression(node.expression);
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             checkSourceElement(node.statement);
@@ -34068,12 +34371,12 @@ var ts;
             var arrayType = arrayOrStringType;
             if (arrayOrStringType.flags & 65536) {
                 var arrayTypes = arrayOrStringType.types;
-                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 34); });
+                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178); });
                 if (filteredTypes !== arrayTypes) {
                     arrayType = getUnionType(filteredTypes, true);
                 }
             }
-            else if (arrayOrStringType.flags & 34) {
+            else if (arrayOrStringType.flags & 262178) {
                 arrayType = neverType;
             }
             var hasStringConstituent = arrayOrStringType !== arrayType;
@@ -34098,7 +34401,7 @@ var ts;
             }
             var arrayElementType = getIndexTypeOfType(arrayType, 1) || unknownType;
             if (hasStringConstituent) {
-                if (arrayElementType.flags & 34) {
+                if (arrayElementType.flags & 262178) {
                     return stringType;
                 }
                 return getUnionType([arrayElementType, stringType], true);
@@ -34782,7 +35085,7 @@ var ts;
                                         return undefined;
                                     }
                                 }
-                                enumType_1 = checkExpression(expression);
+                                enumType_1 = getTypeOfExpression(expression);
                                 if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384))) {
                                     return undefined;
                                 }
@@ -34977,9 +35280,9 @@ var ts;
                     break;
                 case 174:
                 case 223:
-                    var name_28 = node.name;
-                    if (ts.isBindingPattern(name_28)) {
-                        for (var _b = 0, _c = name_28.elements; _b < _c.length; _b++) {
+                    var name_27 = node.name;
+                    if (ts.isBindingPattern(name_27)) {
+                        for (var _b = 0, _c = name_27.elements; _b < _c.length; _b++) {
                             var el = _c[_b];
                             checkModuleAugmentationElement(el, isGlobalAugmentation);
                         }
@@ -35717,7 +36020,7 @@ var ts;
                         }
                     }
                 case 96:
-                    var type = ts.isPartOfExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+                    var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                     return type.symbol;
                 case 167:
                     return getTypeFromTypeNode(node).symbol;
@@ -35739,7 +36042,7 @@ var ts;
                     }
                 case 8:
                     if (node.parent.kind === 178 && node.parent.argumentExpression === node) {
-                        var objectType = checkExpression(node.parent.expression);
+                        var objectType = getTypeOfExpression(node.parent.expression);
                         if (objectType === unknownType)
                             return undefined;
                         var apparentType = getApparentType(objectType);
@@ -35770,7 +36073,7 @@ var ts;
                 return getTypeFromTypeNode(node);
             }
             if (ts.isPartOfExpression(node)) {
-                return getTypeOfExpression(node);
+                return getRegularTypeOfExpression(node);
             }
             if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
                 return getBaseTypes(getDeclaredTypeOfSymbol(getSymbolOfNode(node.parent.parent)))[0];
@@ -35808,7 +36111,7 @@ var ts;
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 192) {
-                var iteratedType = checkExpression(expr.parent.right);
+                var iteratedType = getTypeOfExpression(expr.parent.right);
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 257) {
@@ -35824,11 +36127,11 @@ var ts;
             var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
             return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
         }
-        function getTypeOfExpression(expr) {
+        function getRegularTypeOfExpression(expr) {
             if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
                 expr = expr.parent;
             }
-            return getRegularTypeOfLiteralType(checkExpression(expr));
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
         }
         function getParentTypeOfClassElement(node) {
             var classSymbol = getSymbolOfNode(node.parent);
@@ -35851,9 +36154,9 @@ var ts;
         function getRootSymbols(symbol) {
             if (symbol.flags & 268435456) {
                 var symbols_3 = [];
-                var name_29 = symbol.name;
+                var name_28 = symbol.name;
                 ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
-                    var symbol = getPropertyOfType(t, name_29);
+                    var symbol = getPropertyOfType(t, name_28);
                     if (symbol) {
                         symbols_3.push(symbol);
                     }
@@ -35906,7 +36209,7 @@ var ts;
         }
         function isNameOfModuleOrEnumDeclaration(node) {
             var parent = node.parent;
-            return ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
+            return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
         }
         function getReferencedExportContainer(node, prefixLocals) {
             node = ts.getParseTreeNode(node, ts.isIdentifier);
@@ -36114,7 +36417,7 @@ var ts;
             else if (isTypeOfKind(type, 340)) {
                 return ts.TypeReferenceSerializationKind.NumberLikeType;
             }
-            else if (isTypeOfKind(type, 34)) {
+            else if (isTypeOfKind(type, 262178)) {
                 return ts.TypeReferenceSerializationKind.StringLikeType;
             }
             else if (isTupleType(type)) {
@@ -36145,7 +36448,7 @@ var ts;
             getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
         }
         function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
-            var type = getWidenedType(getTypeOfExpression(expr));
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
         }
         function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
@@ -36164,9 +36467,9 @@ var ts;
             }
             var location = reference;
             if (startInDeclarationContainer) {
-                var parent_12 = reference.parent;
-                if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
-                    location = getDeclarationContainer(parent_12);
+                var parent_11 = reference.parent;
+                if (ts.isDeclaration(parent_11) && reference === parent_11.name) {
+                    location = getDeclarationContainer(parent_11);
                 }
             }
             return resolveName(location, reference.text, 107455 | 1048576 | 8388608, undefined, undefined);
@@ -36279,9 +36582,9 @@ var ts;
                 }
                 var current = symbol;
                 while (true) {
-                    var parent_13 = getParentOfSymbol(current);
-                    if (parent_13) {
-                        current = parent_13;
+                    var parent_12 = getParentOfSymbol(current);
+                    if (parent_12) {
+                        current = parent_12;
                     }
                     else {
                         break;
@@ -36958,9 +37261,9 @@ var ts;
                 if (prop.kind === 259) {
                     continue;
                 }
-                var name_30 = prop.name;
-                if (name_30.kind === 142) {
-                    checkGrammarComputedPropertyName(name_30);
+                var name_29 = prop.name;
+                if (name_29.kind === 142) {
+                    checkGrammarComputedPropertyName(name_29);
                 }
                 if (prop.kind === 258 && !inDestructuring && prop.objectAssignmentInitializer) {
                     return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
@@ -36976,8 +37279,8 @@ var ts;
                 var currentKind = void 0;
                 if (prop.kind === 257 || prop.kind === 258) {
                     checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
-                    if (name_30.kind === 8) {
-                        checkGrammarNumericLiteral(name_30);
+                    if (name_29.kind === 8) {
+                        checkGrammarNumericLiteral(name_29);
                     }
                     currentKind = Property;
                 }
@@ -36993,7 +37296,7 @@ var ts;
                 else {
                     ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
                 }
-                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_30);
+                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_29);
                 if (effectiveName === undefined) {
                     continue;
                 }
@@ -37003,18 +37306,18 @@ var ts;
                 else {
                     var existingKind = seen[effectiveName];
                     if (currentKind === Property && existingKind === Property) {
-                        grammarErrorOnNode(name_30, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_30));
+                        grammarErrorOnNode(name_29, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_29));
                     }
                     else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                         if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                             seen[effectiveName] = currentKind | existingKind;
                         }
                         else {
-                            return grammarErrorOnNode(name_30, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            return grammarErrorOnNode(name_29, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                         }
                     }
                     else {
-                        return grammarErrorOnNode(name_30, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        return grammarErrorOnNode(name_29, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                     }
                 }
             }
@@ -37027,12 +37330,12 @@ var ts;
                     continue;
                 }
                 var jsxAttr = attr;
-                var name_31 = jsxAttr.name;
-                if (!seen[name_31.text]) {
-                    seen[name_31.text] = true;
+                var name_30 = jsxAttr.name;
+                if (!seen[name_30.text]) {
+                    seen[name_30.text] = true;
                 }
                 else {
-                    return grammarErrorOnNode(name_31, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                    return grammarErrorOnNode(name_30, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
                 }
                 var initializer = jsxAttr.initializer;
                 if (initializer && initializer.kind === 252 && !initializer.expression) {
@@ -37480,10 +37783,15 @@ var ts;
     function reduceNode(node, f, initial) {
         return node ? f(initial, node) : initial;
     }
-    function reduceEachChild(node, f, initial) {
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
         if (node === undefined) {
             return initial;
         }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
         var kind = node.kind;
         if ((kind > 0 && kind <= 140)) {
             return initial;
@@ -37497,108 +37805,108 @@ var ts;
             case 206:
             case 198:
             case 222:
-            case 292:
+            case 293:
                 break;
             case 142:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 144:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 145:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 147:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 149:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 150:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 151:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 152:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 172:
             case 173:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 174:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 175:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 176:
-                result = ts.reduceLeft(node.properties, f, result);
+                result = reduceNodes(node.properties, cbNodes, result);
                 break;
             case 177:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 178:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.argumentExpression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
                 break;
             case 179:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 180:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 181:
-                result = reduceNode(node.tag, f, result);
-                result = reduceNode(node.template, f, result);
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNode(node.template, cbNode, result);
                 break;
             case 184:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 185:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 183:
             case 186:
@@ -37608,205 +37916,205 @@ var ts;
             case 195:
             case 196:
             case 201:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 190:
             case 191:
-                result = reduceNode(node.operand, f, result);
+                result = reduceNode(node.operand, cbNode, result);
                 break;
             case 192:
-                result = reduceNode(node.left, f, result);
-                result = reduceNode(node.right, f, result);
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
                 break;
             case 193:
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.whenTrue, f, result);
-                result = reduceNode(node.whenFalse, f, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
                 break;
             case 194:
-                result = reduceNode(node.head, f, result);
-                result = ts.reduceLeft(node.templateSpans, f, result);
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
                 break;
             case 197:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 199:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
                 break;
             case 202:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.literal, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
                 break;
             case 204:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 205:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.declarationList, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
                 break;
             case 207:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 208:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.thenStatement, f, result);
-                result = reduceNode(node.elseStatement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
                 break;
             case 209:
-                result = reduceNode(node.statement, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 210:
             case 217:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 211:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.incrementor, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 212:
             case 213:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 216:
             case 220:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 218:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.caseBlock, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
                 break;
             case 219:
-                result = reduceNode(node.label, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 221:
-                result = reduceNode(node.tryBlock, f, result);
-                result = reduceNode(node.catchClause, f, result);
-                result = reduceNode(node.finallyBlock, f, result);
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
                 break;
             case 223:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 224:
-                result = ts.reduceLeft(node.declarations, f, result);
+                result = reduceNodes(node.declarations, cbNodes, result);
                 break;
             case 225:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 226:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 232:
-                result = ts.reduceLeft(node.clauses, f, result);
+                result = reduceNodes(node.clauses, cbNodes, result);
                 break;
             case 235:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.importClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 236:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.namedBindings, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
                 break;
             case 237:
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 238:
             case 242:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 239:
             case 243:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 240:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 241:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.exportClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 246:
-                result = reduceNode(node.openingElement, f, result);
-                result = ts.reduceLeft(node.children, f, result);
-                result = reduceNode(node.closingElement, f, result);
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
                 break;
             case 247:
             case 248:
-                result = reduceNode(node.tagName, f, result);
-                result = ts.reduceLeft(node.attributes, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.attributes, cbNodes, result);
                 break;
             case 249:
-                result = reduceNode(node.tagName, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
                 break;
             case 250:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 251:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 252:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 253:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
             case 254:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 255:
-                result = ts.reduceLeft(node.types, f, result);
+                result = reduceNodes(node.types, cbNodes, result);
                 break;
             case 256:
-                result = reduceNode(node.variableDeclaration, f, result);
-                result = reduceNode(node.block, f, result);
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
                 break;
             case 257:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 258:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.objectAssignmentInitializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
                 break;
             case 259:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 261:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
-            case 293:
-                result = reduceNode(node.expression, f, result);
+            case 294:
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             default:
                 var edgeTraversalPath = nodeEdgeTraversalMap[kind];
@@ -37816,8 +38124,8 @@ var ts;
                         var value = node[edge.name];
                         if (value !== undefined) {
                             result = ts.isArray(value)
-                                ? ts.reduceLeft(value, f, result)
-                                : f(result, value);
+                                ? reduceNodes(value, cbNodes, result)
+                                : cbNode(result, value);
                         }
                     }
                 }
@@ -37827,8 +38135,8 @@ var ts;
     }
     ts.reduceEachChild = reduceEachChild;
     function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
-        if (node === undefined) {
-            return undefined;
+        if (node === undefined || visitor === undefined) {
+            return node;
         }
         aggregateTransformFlags(node);
         var visited = visitor(node);
@@ -37905,6 +38213,35 @@ var ts;
         return updated || nodes;
     }
     ts.visitNodes = visitNodes;
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
+            statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
+        }
+        var declarations = context.endLexicalEnvironment();
+        return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    function visitParameterList(nodes, visitor, context) {
+        context.startLexicalEnvironment();
+        var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
     function visitEachChild(node, visitor, context) {
         if (node === undefined) {
             return undefined;
@@ -37925,23 +38262,23 @@ var ts;
             case 142:
                 return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
             case 144:
-                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 147:
                 return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 149:
-                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 150:
-                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 151:
-                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 152:
-                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 172:
                 return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
             case 173:
                 return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
             case 174:
-                return ts.updateBindingElement(node, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 175:
                 return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
             case 176:
@@ -37959,9 +38296,9 @@ var ts;
             case 183:
                 return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
             case 184:
-                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 185:
-                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isConciseBody, true), context.endLexicalEnvironment()));
+                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 186:
                 return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
             case 187:
@@ -38029,7 +38366,7 @@ var ts;
             case 224:
                 return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
             case 225:
-                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 226:
                 return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
             case 232:
@@ -38081,9 +38418,8 @@ var ts;
             case 259:
                 return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
             case 261:
-                context.startLexicalEnvironment();
-                return ts.updateSourceFileNode(node, ts.createNodeArray(ts.concatenate(visitNodes(node.statements, visitor, ts.isStatement), context.endLexicalEnvironment()), node.statements));
-            case 293:
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
+            case 294:
                 return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
             default:
                 var updated = void 0;
@@ -38111,6 +38447,15 @@ var ts;
         }
     }
     ts.visitEachChild = visitEachChild;
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        return ts.isNodeArray(statements)
+            ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
+            : ts.addRange(statements, declarations);
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
     function mergeFunctionBodyLexicalEnvironment(body, declarations) {
         if (body && declarations !== undefined && declarations.length > 0) {
             if (ts.isBlock(body)) {
@@ -38141,22 +38486,37 @@ var ts;
         if (node === undefined) {
             return 0;
         }
-        else if (node.transformFlags & 536870912) {
+        if (node.transformFlags & 536870912) {
             return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
         }
-        else {
-            var subtreeFlags = aggregateTransformFlagsForSubtree(node);
-            return ts.computeTransformFlagsForNode(node, subtreeFlags);
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0;
         }
+        var subtreeFlags = 0;
+        var nodeArrayFlags = 0;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912;
+        }
+        nodes.transformFlags = nodeArrayFlags | 536870912;
+        return subtreeFlags;
     }
     function aggregateTransformFlagsForSubtree(node) {
         if (ts.hasModifier(node, 2) || ts.isTypeNode(node)) {
             return 0;
         }
-        return reduceEachChild(node, aggregateTransformFlagsForChildNode, 0);
+        return reduceEachChild(node, 0, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
+    }
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
     }
-    function aggregateTransformFlagsForChildNode(transformFlags, child) {
-        return transformFlags | aggregateTransformFlagsForNode(child);
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
     }
     var Debug;
     (function (Debug) {
@@ -38166,9 +38526,21 @@ var ts;
         Debug.failBadSyntaxKind = Debug.shouldAssert(1)
             ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
             : ts.noop;
+        Debug.assertEachNode = Debug.shouldAssert(1)
+            ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
         Debug.assertNode = Debug.shouldAssert(1)
             ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
             : ts.noop;
+        Debug.assertOptionalNode = Debug.shouldAssert(1)
+            ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
+        Debug.assertOptionalToken = Debug.shouldAssert(1)
+            ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
+            : ts.noop;
+        Debug.assertMissingNode = Debug.shouldAssert(1)
+            ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
+            : ts.noop;
         function getFunctionName(func) {
             if (typeof func !== "function") {
                 return "";
@@ -38187,440 +38559,316 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    function flattenDestructuringAssignment(context, node, needsValue, recordTempVariable, visitor, transformRest) {
-        if (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
-            var right = node.right;
-            if (ts.isDestructuringAssignment(right)) {
-                return flattenDestructuringAssignment(context, right, needsValue, recordTempVariable, visitor);
-            }
-            else {
-                return node.right;
-            }
-        }
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
         var location = node;
-        var value = node.right;
-        var expressions = [];
-        if (needsValue) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment, visitor);
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return value;
+                }
+            }
         }
-        else if (ts.nodeIsSynthesized(node)) {
-            location = value;
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (needsValue) {
+                value = ensureIdentifier(flattenContext, value, true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                location = value;
+            }
         }
-        flattenDestructuring(node, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        if (needsValue) {
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
             expressions.push(value);
         }
-        var expression = ts.inlineExpressions(expressions);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location) {
-            var expression = ts.createAssignment(name, value, location);
-            ts.setEmitFlags(expression, 2048);
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
+            ts.setEmitFlags(expression, 64);
             ts.aggregateTransformFlags(expression);
-            expressions.push(expression);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitAssignment(name, value, location);
-            return name;
+            expressions = ts.append(expressions, expression);
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
+            expression.original = original;
+            emitExpression(expression);
         }
     }
     ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
-    function flattenParameterDestructuring(node, value, visitor, transformRest) {
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        var pendingExpressions;
+        var pendingDeclarations = [];
         var declarations = [];
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location) {
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            ts.setEmitFlags(declaration, 2048);
-            ts.aggregateTransformFlags(declaration);
-            declarations.push(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(undefined);
-            emitAssignment(name, value, location);
-            return name;
-        }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location);
-        }
-    }
-    ts.flattenParameterDestructuring = flattenParameterDestructuring;
-    function flattenVariableDestructuring(node, value, visitor, recordTempVariable, transformRest) {
-        var declarations = [];
-        var pendingAssignments;
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location, original) {
-            if (pendingAssignments) {
-                pendingAssignments.push(value);
-                value = ts.inlineExpressions(pendingAssignments);
-                pendingAssignments = undefined;
-            }
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            declaration.original = original;
-            ts.setEmitFlags(declaration, 2048);
-            declarations.push(declaration);
-            ts.aggregateTransformFlags(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            if (recordTempVariable) {
-                var assignment = ts.createAssignment(name, value, location);
-                if (pendingAssignments) {
-                    pendingAssignments.push(assignment);
-                }
-                else {
-                    pendingAssignments = [assignment];
-                }
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, undefined, undefined);
             }
             else {
-                emitAssignment(name, value, location, undefined);
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
             }
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location, original);
-        }
-    }
-    ts.flattenVariableDestructuring = flattenVariableDestructuring;
-    function flattenVariableDestructuringToExpression(node, recordTempVariable, createAssignmentCallback, visitor) {
-        var pendingAssignments = [];
-        flattenDestructuring(node, undefined, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, false, visitor);
-        var expression = ts.inlineExpressions(pendingAssignments);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location, original) {
-            var expression = createAssignmentCallback
-                ? createAssignmentCallback(name.kind === 70 ? name : emitTempVariableAssignment(name, location), value, location)
-                : ts.createAssignment(name, value, location);
-            emitPendingAssignment(expression, original);
         }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitPendingAssignment(ts.createAssignment(name, value, location), undefined);
-            return name;
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_31 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name_31, undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
+            variable.original = original;
+            if (ts.isIdentifier(name_31)) {
+                ts.setEmitFlags(variable, 64);
+            }
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
         }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location, original);
+        return declarations;
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
         }
-        function emitPendingAssignment(expression, original) {
-            expression.original = original;
-            ts.setEmitFlags(expression, 2048);
-            pendingAssignments.push(expression);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
+            }
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
         }
     }
-    ts.flattenVariableDestructuringToExpression = flattenVariableDestructuringToExpression;
-    function flattenDestructuring(root, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor) {
-        if (value && visitor) {
-            value = ts.visitNode(value, visitor, ts.isExpression);
-        }
-        if (ts.isBinaryExpression(root)) {
-            emitDestructuringAssignment(root.left, value, location);
-        }
-        else {
-            emitBindingElement(root, value);
-        }
-        function emitDestructuringAssignment(bindingTarget, value, location) {
-            var target;
-            if (ts.isShorthandPropertyAssignment(bindingTarget)) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.objectAssignmentInitializer, visitor, ts.isExpression)
-                    : bindingTarget.objectAssignmentInitializer;
-                if (initializer) {
-                    value = createDefaultValueCheck(value, initializer, location);
-                }
-                target = bindingTarget.name;
-            }
-            else if (ts.isBinaryExpression(bindingTarget) && bindingTarget.operatorToken.kind === 57) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.right, visitor, ts.isExpression)
-                    : bindingTarget.right;
-                value = createDefaultValueCheck(value, initializer, location);
-                target = bindingTarget.left;
-            }
-            else {
-                target = bindingTarget;
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
             }
-            if (target.kind === 176) {
-                emitObjectLiteralAssignment(target, value, location);
-            }
-            else if (target.kind === 175) {
-                emitArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                var name_32 = ts.getMutableClone(target);
-                ts.setSourceMapRange(name_32, target);
-                ts.setCommentRange(name_32, target);
-                emitAssignment(name_32, value, location, undefined);
+            else if (!value) {
+                value = ts.createVoidZero();
             }
         }
-        function emitObjectLiteralAssignment(target, value, location) {
-            var properties = target.properties;
-            if (properties.length !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var bindingElements = [];
-            for (var i = 0; i < properties.length; i++) {
-                var p = properties[i];
-                if (p.kind === 257 || p.kind === 258) {
-                    if (!transformRest ||
-                        p.transformFlags & 8388608 ||
-                        (p.kind === 257 && p.initializer.transformFlags & 8388608)) {
-                        if (bindingElements.length) {
-                            emitRestAssignment(bindingElements, value, location, target);
-                            bindingElements = [];
-                        }
-                        var propName = p.name;
-                        var bindingTarget = p.kind === 258 ? p : p.initializer || propName;
-                        emitDestructuringAssignment(bindingTarget, createDestructuringPropertyAccess(value, propName), p);
-                    }
-                    else {
-                        bindingElements.push(p);
-                    }
-                }
-                else if (i === properties.length - 1 &&
-                    p.kind === 259 &&
-                    p.expression.kind === 70) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, location, target);
-                        bindingElements = [];
-                    }
-                    var propName = p.expression;
-                    var restCall = createRestCall(value, target.properties, function (p) { return p.name; }, target);
-                    emitDestructuringAssignment(propName, restCall, p);
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, location, target);
-                bindingElements = [];
-            }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitArrayLiteralAssignment(target, value, location) {
-            if (transformRest) {
-                emitESNextArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                emitES2015ArrayLiteralAssignment(target, value, location);
-            }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitESNextArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var expressions = [];
-            var spreadContainingExpressions = [];
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind === 198) {
-                    continue;
-                }
-                if (e.transformFlags & 8388608 && i < numElements - 1) {
-                    var tmp = ts.createTempVariable(recordTempVariable);
-                    spreadContainingExpressions.push([e, tmp]);
-                    expressions.push(tmp);
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, element);
+        }
+    }
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1
+                    && !(element.transformFlags & (524288 | 1048576))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 | 1048576))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, element);
                 }
                 else {
-                    expressions.push(e);
-                }
-            }
-            emitAssignment(ts.updateArrayLiteral(target, expressions), value, undefined, undefined);
-            for (var _i = 0, spreadContainingExpressions_1 = spreadContainingExpressions; _i < spreadContainingExpressions_1.length; _i++) {
-                var _a = spreadContainingExpressions_1[_i], e = _a[0], tmp = _a[1];
-                emitDestructuringAssignment(e, tmp, e);
-            }
-        }
-        function emitES2015ArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind !== 198) {
-                    if (e.kind !== 196) {
-                        emitDestructuringAssignment(e, ts.createElementAccess(value, ts.createLiteral(i)), e);
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
                     }
-                    else if (i === numElements - 1) {
-                        emitDestructuringAssignment(e.expression, ts.createArraySlice(value, i), e);
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                     }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
                 }
             }
-        }
-        function createRestCall(value, elements, getPropertyName, location) {
-            var propertyNames = [];
-            for (var i = 0; i < elements.length - 1; i++) {
-                if (ts.isOmittedExpression(elements[i])) {
-                    continue;
-                }
-                var str = ts.createSynthesizedNode(9);
-                str.pos = location.pos;
-                str.end = location.end;
-                str.text = ts.getTextOfPropertyName(getPropertyName(elements[i]));
-                propertyNames.push(str);
-            }
-            var args = ts.createSynthesizedNodeArray([value, ts.createArrayLiteral(propertyNames, location)]);
-            return ts.createCall(ts.createIdentifier("__rest"), undefined, args);
-        }
-        function emitBindingElement(target, value) {
-            var initializer = visitor ? ts.visitNode(target.initializer, visitor, ts.isExpression) : target.initializer;
-            if (transformRest) {
-                value = value || initializer;
-            }
-            else if (initializer) {
-                value = value ? createDefaultValueCheck(value, initializer, target) : initializer;
-            }
-            else if (!value) {
-                value = ts.createVoidZero();
-            }
-            var name = target.name;
-            if (!ts.isBindingPattern(name)) {
-                emitAssignment(name, value, target, target);
-            }
-            else {
-                var numElements = name.elements.length;
-                if (numElements !== 1) {
-                    value = ensureIdentifier(value, numElements !== 0, target, emitTempVariableAssignment);
-                }
-                if (name.kind === 173) {
-                    emitArrayBindingElement(name, value);
-                }
-                else {
-                    emitObjectBindingElement(target, value);
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
                 }
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
         }
-        function emitArrayBindingElement(name, value) {
-            if (transformRest) {
-                emitESNextArrayBindingElement(name, value);
-            }
-            else {
-                emitES2015ArrayBindingElement(name, value);
-            }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function emitES2015ArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (!element.dotDotDotToken) {
-                    emitBindingElement(element, ts.createElementAccess(value, i));
-                }
-                else if (i === numElements - 1) {
-                    emitBindingElement(element, ts.createArraySlice(value, i));
-                }
-            }
+    }
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1 && (flattenContext.level < 1 || numElements === 0)) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
         }
-        function emitESNextArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            var spreadContainingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (element.transformFlags & 8388608 && i < numElements - 1) {
-                    spreadContainingElements.push(element);
-                    bindingElements.push(ts.createBindingElement(undefined, undefined, ts.getGeneratedNameForNode(element), undefined, value));
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1) {
+                if (element.transformFlags & 1048576) {
+                    var temp = ts.createTempVariable(undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
                 }
                 else {
-                    bindingElements.push(element);
+                    bindingElements = ts.append(bindingElements, element);
                 }
             }
-            emitAssignment(ts.updateArrayBindingPattern(name, bindingElements), value, undefined, undefined);
-            for (var _i = 0, spreadContainingElements_1 = spreadContainingElements; _i < spreadContainingElements_1.length; _i++) {
-                var element = spreadContainingElements_1[_i];
-                emitBindingElement(element, ts.getGeneratedNameForNode(element));
+            else if (ts.isOmittedExpression(element)) {
+                continue;
             }
-        }
-        function emitObjectBindingElement(target, value) {
-            var name = target.name;
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (i === numElements - 1 && element.dotDotDotToken) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var restCall = createRestCall(value, name.elements, function (element) { return element.propertyName || element.name; }, name);
-                    emitBindingElement(element, restCall);
-                }
-                else if (transformRest && !(element.transformFlags & 8388608)) {
-                    bindingElements.push(element);
-                }
-                else {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var propName = element.propertyName || element.name;
-                    emitBindingElement(element, createDestructuringPropertyAccess(value, propName));
-                }
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, target, target);
-                bindingElements = [];
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
         }
-        function createDefaultValueCheck(value, defaultValue, location) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            return ts.createConditional(ts.createStrictEquality(value, ts.createVoidZero()), ts.createToken(54), defaultValue, ts.createToken(55), value);
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function createDestructuringPropertyAccess(expression, propertyName) {
-            if (ts.isComputedPropertyName(propertyName)) {
-                return ts.createElementAccess(expression, ensureIdentifier(propertyName.expression, false, propertyName, emitTempVariableAssignment));
-            }
-            else if (ts.isLiteralExpression(propertyName)) {
-                var clone_2 = ts.getSynthesizedClone(propertyName);
-                clone_2.text = ts.unescapeIdentifier(clone_2.text);
-                return ts.createElementAccess(expression, clone_2);
-            }
-            else {
-                if (ts.isGeneratedIdentifier(propertyName)) {
-                    var clone_3 = ts.getSynthesizedClone(propertyName);
-                    clone_3.text = ts.unescapeIdentifier(clone_3.text);
-                    return ts.createPropertyAccess(expression, clone_3);
-                }
-                else {
-                    return ts.createPropertyAccess(expression, ts.createIdentifier(ts.unescapeIdentifier(propertyName.text)));
-                }
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
             }
         }
     }
-    function ensureIdentifier(value, reuseIdentifierExpressions, location, emitTempVariableAssignment, visitor) {
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, false, propertyName);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else if (ts.isStringOrNumericLiteral(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name_32 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
+            return ts.createPropertyAccess(value, name_32);
+        }
+    }
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
         if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
             return value;
         }
         else {
-            if (visitor) {
-                value = ts.visitNode(value, visitor, ts.isExpression);
+            var temp = ts.createTempVariable(undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.createAssignment(temp, value, location));
             }
-            return emitTempVariableAssignment(value, location);
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, undefined);
+            }
+            return temp;
         }
     }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(undefined, undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    var restHelper = {
+        name: "typescript:rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
+    };
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
+            }
+        }
+        return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
+    }
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     var USE_NEW_TYPE_METADATA_FORMAT = false;
     function transformTypeScript(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
@@ -38636,7 +38884,6 @@ var ts;
         var currentNamespaceContainerName;
         var currentScope;
         var currentScopeFirstDeclarationsOfName;
-        var currentExternalHelpersModuleName;
         var enabledSubstitutions;
         var classAliases;
         var applicableSubstitutions;
@@ -38645,7 +38892,11 @@ var ts;
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function saveStateAndInvoke(node, f) {
             var savedCurrentScope = currentScope;
@@ -38658,14 +38909,29 @@ var ts;
             currentScope = savedCurrentScope;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 261:
+                case 232:
+                case 231:
+                case 204:
+                    currentScope = node;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 226:
+                case 225:
+                    if (ts.hasModifier(node, 2)) {
+                        break;
+                    }
+                    recordEmittedDeclarationInScope(node);
+                    break;
+            }
+        }
         function visitor(node) {
             return saveStateAndInvoke(node, visitorWorker);
         }
         function visitorWorker(node) {
-            if (node.kind === 261) {
-                return visitSourceFile(node);
-            }
-            else if (node.transformFlags & 1) {
+            if (node.transformFlags & 1) {
                 return visitTypeScript(node);
             }
             else if (node.transformFlags & 2) {
@@ -38833,53 +39099,9 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            switch (node.kind) {
-                case 261:
-                case 232:
-                case 231:
-                case 204:
-                    currentScope = node;
-                    currentScopeFirstDeclarationsOfName = undefined;
-                    break;
-                case 226:
-                case 225:
-                    if (ts.hasModifier(node, 2)) {
-                        break;
-                    }
-                    recordEmittedDeclarationInScope(node);
-                    break;
-            }
-        }
         function visitSourceFile(node) {
-            currentSourceFile = node;
-            if (compilerOptions.alwaysStrict &&
-                !(ts.isExternalModule(node) && (compilerOptions.target >= 2 || compilerOptions.module === ts.ModuleKind.ES2015))) {
-                node = ts.ensureUseStrict(node);
-            }
-            if (node.flags & 64512
-                && compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                startLexicalEnvironment();
-                var statements = [];
-                var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
-                var externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText);
-                var externalHelpersModuleImport = ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText));
-                externalHelpersModuleImport.parent = node;
-                externalHelpersModuleImport.flags &= ~8;
-                statements.push(externalHelpersModuleImport);
-                currentExternalHelpersModuleName = externalHelpersModuleName;
-                ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
-                ts.addRange(statements, endLexicalEnvironment());
-                currentExternalHelpersModuleName = undefined;
-                node = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
-                node.externalHelpersModuleName = externalHelpersModuleName;
-            }
-            else {
-                node = ts.visitEachChild(node, sourceElementVisitor, context);
-            }
-            ts.setEmitFlags(node, 1 | ts.getEmitFlags(node));
-            return node;
+            var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, 0, alwaysStrict));
         }
         function shouldEmitDecorateCallForClass(node) {
             if (node.decorators && node.decorators.length > 0) {
@@ -38925,7 +39147,7 @@ var ts;
             }
             if (statements.length > 1) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 33554432);
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -38933,7 +39155,7 @@ var ts;
             var classDeclaration = ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, hasExtendsClause), node);
             var emitFlags = ts.getEmitFlags(node);
             if (hasStaticProperties) {
-                emitFlags |= 1024;
+                emitFlags |= 32;
             }
             ts.setOriginalNode(classDeclaration, node);
             ts.setEmitFlags(classDeclaration, emitFlags);
@@ -38964,7 +39186,7 @@ var ts;
                     enableSubstitutionForClassAliases();
                     classAliases[ts.getOriginalNodeId(node)] = ts.getSynthesizedClone(temp);
                 }
-                ts.setEmitFlags(classExpression, 524288 | ts.getEmitFlags(classExpression));
+                ts.setEmitFlags(classExpression, 32768 | ts.getEmitFlags(classExpression));
                 expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
                 ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
                 expressions.push(ts.startOnNewLine(temp));
@@ -38983,7 +39205,7 @@ var ts;
         }
         function transformConstructor(node, hasExtendsClause) {
             var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
-            var hasParameterPropertyAssignments = node.transformFlags & 4194304;
+            var hasParameterPropertyAssignments = node.transformFlags & 262144;
             var constructor = ts.getFirstConstructorWithBody(node);
             if (!hasInstancePropertyWithInitializer && !hasParameterPropertyAssignments) {
                 return ts.visitEachChild(constructor, visitor, context);
@@ -38993,14 +39215,13 @@ var ts;
             return ts.startOnNewLine(ts.setOriginalNode(ts.createConstructor(undefined, undefined, parameters, body, constructor || node), constructor));
         }
         function transformConstructorParameters(constructor) {
-            return constructor
-                ? ts.visitNodes(constructor.parameters, visitor, ts.isParameter)
-                : [];
+            return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(node, constructor, hasExtendsClause) {
             var statements = [];
             var indexOfFirstStatement = 0;
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             if (constructor) {
                 indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
                 var propertyAssignments = getParametersWithPropertyAssignments(constructor);
@@ -39015,7 +39236,7 @@ var ts;
                 ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement));
             }
             ts.addRange(statements, endLexicalEnvironment());
-            return ts.setMultiLine(ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined), true);
+            return ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined, true);
         }
         function addPrologueDirectivesAndInitialSuperCall(ctor, result) {
             if (ctor.body) {
@@ -39044,9 +39265,9 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name));
             var name = node.name;
             var propertyName = ts.getMutableClone(name);
-            ts.setEmitFlags(propertyName, 49152 | 1536);
+            ts.setEmitFlags(propertyName, 1536 | 48);
             var localName = ts.getMutableClone(name);
-            ts.setEmitFlags(localName, 49152);
+            ts.setEmitFlags(localName, 1536);
             return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, node.name), localName), ts.moveRangePos(node, -1)));
         }
         function getInitializedProperties(node, isStatic) {
@@ -39219,8 +39440,8 @@ var ts;
                     ? ts.createVoidZero()
                     : ts.createNull()
                 : undefined;
-            var helper = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
-            ts.setEmitFlags(helper, 49152);
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536);
             return helper;
         }
         function addConstructorDecorationStatement(statements, node) {
@@ -39237,9 +39458,9 @@ var ts;
             }
             var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
             var localName = ts.getLocalName(node, false, true);
-            var decorate = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, localName);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
             var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
-            ts.setEmitFlags(expression, 49152);
+            ts.setEmitFlags(expression, 1536);
             ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
             return expression;
         }
@@ -39252,8 +39473,8 @@ var ts;
                 expressions = [];
                 for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                     var decorator = decorators_1[_i];
-                    var helper = ts.createParamHelper(currentExternalHelpersModuleName, transformDecorator(decorator), parameterOffset, decorator.expression);
-                    ts.setEmitFlags(helper, 49152);
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, decorator.expression);
+                    ts.setEmitFlags(helper, 1536);
                     expressions.push(helper);
                 }
             }
@@ -39270,13 +39491,13 @@ var ts;
         function addOldTypeMetadata(node, decoratorExpressions) {
             if (compilerOptions.emitDecoratorMetadata) {
                 if (shouldAddTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:type", serializeTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
                 }
                 if (shouldAddParamTypesMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:paramtypes", serializeParameterTypesOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node)));
                 }
                 if (shouldAddReturnTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:returntype", serializeReturnTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
                 }
             }
         }
@@ -39293,7 +39514,7 @@ var ts;
                     (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeReturnTypeOfNode(node))));
                 }
                 if (properties) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
                 }
             }
         }
@@ -39462,7 +39683,7 @@ var ts;
                 case ts.TypeReferenceSerializationKind.Unknown:
                     var serialized = serializeEntityNameAsExpression(node.typeName, true);
                     var temp = ts.createTempVariable(hoistVariableDeclaration);
-                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictEquality(ts.createTypeOf(ts.createAssignment(temp, serialized)), ts.createLiteral("function")), temp), ts.createIdentifier("Object"));
+                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
                 case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                     return serializeEntityNameAsExpression(node.typeName, false);
                 case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
@@ -39518,7 +39739,7 @@ var ts;
             return ts.createPropertyAccess(left, node.right);
         }
         function getGlobalSymbolNameWithFallback() {
-            return ts.createConditional(ts.createStrictEquality(ts.createTypeOf(ts.createIdentifier("Symbol")), ts.createLiteral("function")), ts.createToken(54), ts.createIdentifier("Symbol"), ts.createToken(55), ts.createIdentifier("Object"));
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
         }
         function getExpressionForPropertyName(member, generateNameForComputedPropertyName) {
             var name = member.name;
@@ -39573,11 +39794,12 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return undefined;
             }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            var updated = ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function shouldEmitAccessorDeclaration(node) {
             return !(ts.nodeIsMissing(node.body) && ts.hasModifier(node, 128));
@@ -39586,86 +39808,46 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createGetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateGetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitSetAccessor(node) {
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createSetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateSetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitFunctionDeclaration(node) {
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return ts.createNotEmittedStatement(node);
             }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
+            var updated = ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
             if (isNamespaceExport(node)) {
-                var statements = [func];
+                var statements = [updated];
                 addExportMemberAssignment(statements, node);
                 return statements;
             }
-            return func;
+            return updated;
         }
         function visitFunctionExpression(node) {
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitArrowFunction(node) {
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformFunctionBodyWorker(node.body);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
-            currentScope = body;
-            currentScopeFirstDeclarationsOfName = ts.createMap();
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-        }
-        function transformConciseBody(node) {
-            return transformConciseBodyWorker(node.body, false);
-        }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
-            if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
-            }
-            else {
-                startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
-                var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
-            }
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitParameter(node) {
             if (ts.parameterIsThisKeyword(node)) {
@@ -39675,7 +39857,7 @@ var ts;
             ts.setOriginalNode(parameter, node);
             ts.setCommentRange(parameter, node);
             ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
-            ts.setEmitFlags(parameter.name, 1024);
+            ts.setEmitFlags(parameter.name, 32);
             return parameter;
         }
         function visitVariableStatement(node) {
@@ -39693,7 +39875,7 @@ var ts;
         function transformInitializedVariable(node) {
             var name = node.name;
             if (ts.isBindingPattern(name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createNamespaceExportExpression, visitor);
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, false, createNamespaceExportExpression);
             }
             else {
                 return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), node);
@@ -39734,10 +39916,10 @@ var ts;
                 return undefined;
             }
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -39829,13 +40011,13 @@ var ts;
                     ts.setSourceMapRange(statement, node);
                 }
                 ts.setCommentRange(statement, node);
-                ts.setEmitFlags(statement, 32768 | 33554432);
+                ts.setEmitFlags(statement, 1024 | 2097152);
                 statements.push(statement);
                 return true;
             }
             else {
                 var mergeMarker = ts.createMergeDeclarationMarker(statement);
-                ts.setEmitFlags(mergeMarker, 49152 | 33554432);
+                ts.setEmitFlags(mergeMarker, 1536 | 2097152);
                 statements.push(mergeMarker);
                 return false;
             }
@@ -39847,10 +40029,10 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name), "TypeScript module should have an Identifier name.");
             enableSubstitutionForNamespaceExports();
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -39906,7 +40088,7 @@ var ts;
             currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
             var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), blockLocation, true);
             if (body.kind !== 231) {
-                ts.setEmitFlags(block, ts.getEmitFlags(block) | 49152);
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536);
             }
             return block;
         }
@@ -39981,7 +40163,7 @@ var ts;
                 return undefined;
             }
             var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
-            ts.setEmitFlags(moduleReference, 49152 | 65536);
+            ts.setEmitFlags(moduleReference, 1536 | 2048);
             if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
                 return ts.setOriginalNode(ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
                     ts.setOriginalNode(ts.createVariableDeclaration(node.name, undefined, moduleReference), node)
@@ -40134,10 +40316,10 @@ var ts;
                     if (declaration) {
                         var classAlias = classAliases[declaration.id];
                         if (classAlias) {
-                            var clone_4 = ts.getSynthesizedClone(classAlias);
-                            ts.setSourceMapRange(clone_4, node);
-                            ts.setCommentRange(clone_4, node);
-                            return clone_4;
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
                         }
                     }
                 }
@@ -40145,7 +40327,7 @@ var ts;
             return undefined;
         }
         function trySubstituteNamespaceExportedName(node) {
-            if (enabledSubstitutions & applicableSubstitutions && !ts.isLocalName(node)) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var container = resolver.getReferencedExportContainer(node, false);
                 if (container && container.kind !== 261) {
                     var substitute = (applicableSubstitutions & 2 && container.kind === 230) ||
@@ -40190,10 +40372,278 @@ var ts;
         }
     }
     ts.transformTypeScript = transformTypeScript;
+    var paramHelper = {
+        name: "typescript:param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(paramHelper);
+        return ts.createCall(ts.getHelperName("__param"), undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ], location);
+    }
+    var metadataHelper = {
+        name: "typescript:metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(metadataHelper);
+        return ts.createCall(ts.getHelperName("__metadata"), undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    var decorateHelper = {
+        name: "typescript:decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        context.requestEmitHelper(decorateHelper);
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, undefined, true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        return ts.createCall(ts.getHelperName("__decorate"), undefined, argumentsArray, location);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformESNext(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        return transformSourceFile;
+        function transformSourceFile(node) {
+            if (ts.isDeclarationFile(node)) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, true);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 8) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 176:
+                    return visitObjectLiteralExpression(node);
+                case 192:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 223:
+                    return visitVariableDeclaration(node);
+                case 213:
+                    return visitForOfStatement(node);
+                case 211:
+                    return visitForStatement(node);
+                case 188:
+                    return visitVoidExpression(node);
+                case 150:
+                    return visitConstructorDeclaration(node);
+                case 149:
+                    return visitMethodDeclaration(node);
+                case 151:
+                    return visitGetAccessorDeclaration(node);
+                case 152:
+                    return visitSetAccessorDeclaration(node);
+                case 225:
+                    return visitFunctionDeclaration(node);
+                case 184:
+                    return visitFunctionExpression(node);
+                case 185:
+                    return visitArrowFunction(node);
+                case 144:
+                    return visitParameter(node);
+                case 207:
+                    return visitExpressionStatement(node);
+                case 183:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+                var e = elements_3[_i];
+                if (e.kind === 259) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    if (!chunkObject) {
+                        chunkObject = [];
+                    }
+                    if (e.kind === 257) {
+                        var p = e;
+                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
+                    }
+                    else {
+                        chunkObject.push(e);
+                    }
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 1048576) {
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 176) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                return createAssignHelper(context, objects);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 25) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableDeclaration(node) {
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitForOfStatement(node) {
+            var leadingStatements;
+            var temp;
+            var initializer = ts.skipParentheses(node.initializer);
+            if (initializer.transformFlags & 1048576) {
+                if (ts.isVariableDeclarationList(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
+                    var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.updateVariableDeclarationList(initializer, declarations), initializer);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+                else if (ts.isAssignmentPattern(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, node.initializer)), visitor, context, 1);
+                    leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, node.initializer));
+                }
+            }
+            if (temp) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                var block = ts.isBlock(statement)
+                    ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
+                    : ts.createBlock(ts.append(leadingStatements, statement), statement, true);
+                return ts.updateForOf(node, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(temp, undefined, undefined, node.initializer)
+                ], node.initializer, 1), expression, block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 1048576) {
+                return ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            return ts.updateConstructor(node, undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitGetAccessorDeclaration(node) {
+            return ts.updateGetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitSetAccessorDeclaration(node) {
+            return ts.updateSetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, node.modifiers, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var leadingStatements;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 1048576) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 524288);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+            }
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            var trailingStatements = endLexicalEnvironment();
+            if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
+                var block = ts.convertToFunctionBody(body, true);
+                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
+            }
+            return body;
+        }
+    }
+    ts.transformESNext = transformESNext;
+    var assignHelper = {
+        name: "typescript:assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        context.requestEmitHelper(assignHelper);
+        return ts.createCall(ts.getHelperName("__assign"), undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    var entities = createEntitiesMap();
     function transformJsx(context) {
         var compilerOptions = context.getCompilerOptions();
         var currentSourceFile;
@@ -40203,17 +40653,15 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            node = ts.visitEachChild(node, visitor, context);
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
             currentSourceFile = undefined;
-            return node;
+            return visited;
         }
         function visitor(node) {
             if (node.transformFlags & 4) {
                 return visitorWorker(node);
             }
-            else if (node.transformFlags & 8) {
-                return ts.visitEachChild(node, visitor, context);
-            }
             else {
                 return node;
             }
@@ -40227,8 +40675,7 @@ var ts;
                 case 252:
                     return visitJsxExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return undefined;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function transformJsxChildToExpression(node) {
@@ -40266,8 +40713,10 @@ var ts;
                 if (ts.isJsxSpreadAttribute(attrs[0])) {
                     segments.unshift(ts.createObjectLiteral());
                 }
-                objectProperties = ts.singleOrUndefined(segments)
-                    || ts.createAssignHelper(currentSourceFile.externalHelpersModuleName, segments);
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
             }
             var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
             if (isChild) {
@@ -40383,458 +40832,291 @@ var ts;
         }
     }
     ts.transformJsx = transformJsx;
-    function createEntitiesMap() {
-        return ts.createMap({
-            "quot": 0x0022,
-            "amp": 0x0026,
-            "apos": 0x0027,
-            "lt": 0x003C,
-            "gt": 0x003E,
-            "nbsp": 0x00A0,
-            "iexcl": 0x00A1,
-            "cent": 0x00A2,
-            "pound": 0x00A3,
-            "curren": 0x00A4,
-            "yen": 0x00A5,
-            "brvbar": 0x00A6,
-            "sect": 0x00A7,
-            "uml": 0x00A8,
-            "copy": 0x00A9,
-            "ordf": 0x00AA,
-            "laquo": 0x00AB,
-            "not": 0x00AC,
-            "shy": 0x00AD,
-            "reg": 0x00AE,
-            "macr": 0x00AF,
-            "deg": 0x00B0,
-            "plusmn": 0x00B1,
-            "sup2": 0x00B2,
-            "sup3": 0x00B3,
-            "acute": 0x00B4,
-            "micro": 0x00B5,
-            "para": 0x00B6,
-            "middot": 0x00B7,
-            "cedil": 0x00B8,
-            "sup1": 0x00B9,
-            "ordm": 0x00BA,
-            "raquo": 0x00BB,
-            "frac14": 0x00BC,
-            "frac12": 0x00BD,
-            "frac34": 0x00BE,
-            "iquest": 0x00BF,
-            "Agrave": 0x00C0,
-            "Aacute": 0x00C1,
-            "Acirc": 0x00C2,
-            "Atilde": 0x00C3,
-            "Auml": 0x00C4,
-            "Aring": 0x00C5,
-            "AElig": 0x00C6,
-            "Ccedil": 0x00C7,
-            "Egrave": 0x00C8,
-            "Eacute": 0x00C9,
-            "Ecirc": 0x00CA,
-            "Euml": 0x00CB,
-            "Igrave": 0x00CC,
-            "Iacute": 0x00CD,
-            "Icirc": 0x00CE,
-            "Iuml": 0x00CF,
-            "ETH": 0x00D0,
-            "Ntilde": 0x00D1,
-            "Ograve": 0x00D2,
-            "Oacute": 0x00D3,
-            "Ocirc": 0x00D4,
-            "Otilde": 0x00D5,
-            "Ouml": 0x00D6,
-            "times": 0x00D7,
-            "Oslash": 0x00D8,
-            "Ugrave": 0x00D9,
-            "Uacute": 0x00DA,
-            "Ucirc": 0x00DB,
-            "Uuml": 0x00DC,
-            "Yacute": 0x00DD,
-            "THORN": 0x00DE,
-            "szlig": 0x00DF,
-            "agrave": 0x00E0,
-            "aacute": 0x00E1,
-            "acirc": 0x00E2,
-            "atilde": 0x00E3,
-            "auml": 0x00E4,
-            "aring": 0x00E5,
-            "aelig": 0x00E6,
-            "ccedil": 0x00E7,
-            "egrave": 0x00E8,
-            "eacute": 0x00E9,
-            "ecirc": 0x00EA,
-            "euml": 0x00EB,
-            "igrave": 0x00EC,
-            "iacute": 0x00ED,
-            "icirc": 0x00EE,
-            "iuml": 0x00EF,
-            "eth": 0x00F0,
-            "ntilde": 0x00F1,
-            "ograve": 0x00F2,
-            "oacute": 0x00F3,
-            "ocirc": 0x00F4,
-            "otilde": 0x00F5,
-            "ouml": 0x00F6,
-            "divide": 0x00F7,
-            "oslash": 0x00F8,
-            "ugrave": 0x00F9,
-            "uacute": 0x00FA,
-            "ucirc": 0x00FB,
-            "uuml": 0x00FC,
-            "yacute": 0x00FD,
-            "thorn": 0x00FE,
-            "yuml": 0x00FF,
-            "OElig": 0x0152,
-            "oelig": 0x0153,
-            "Scaron": 0x0160,
-            "scaron": 0x0161,
-            "Yuml": 0x0178,
-            "fnof": 0x0192,
-            "circ": 0x02C6,
-            "tilde": 0x02DC,
-            "Alpha": 0x0391,
-            "Beta": 0x0392,
-            "Gamma": 0x0393,
-            "Delta": 0x0394,
-            "Epsilon": 0x0395,
-            "Zeta": 0x0396,
-            "Eta": 0x0397,
-            "Theta": 0x0398,
-            "Iota": 0x0399,
-            "Kappa": 0x039A,
-            "Lambda": 0x039B,
-            "Mu": 0x039C,
-            "Nu": 0x039D,
-            "Xi": 0x039E,
-            "Omicron": 0x039F,
-            "Pi": 0x03A0,
-            "Rho": 0x03A1,
-            "Sigma": 0x03A3,
-            "Tau": 0x03A4,
-            "Upsilon": 0x03A5,
-            "Phi": 0x03A6,
-            "Chi": 0x03A7,
-            "Psi": 0x03A8,
-            "Omega": 0x03A9,
-            "alpha": 0x03B1,
-            "beta": 0x03B2,
-            "gamma": 0x03B3,
-            "delta": 0x03B4,
-            "epsilon": 0x03B5,
-            "zeta": 0x03B6,
-            "eta": 0x03B7,
-            "theta": 0x03B8,
-            "iota": 0x03B9,
-            "kappa": 0x03BA,
-            "lambda": 0x03BB,
-            "mu": 0x03BC,
-            "nu": 0x03BD,
-            "xi": 0x03BE,
-            "omicron": 0x03BF,
-            "pi": 0x03C0,
-            "rho": 0x03C1,
-            "sigmaf": 0x03C2,
-            "sigma": 0x03C3,
-            "tau": 0x03C4,
-            "upsilon": 0x03C5,
-            "phi": 0x03C6,
-            "chi": 0x03C7,
-            "psi": 0x03C8,
-            "omega": 0x03C9,
-            "thetasym": 0x03D1,
-            "upsih": 0x03D2,
-            "piv": 0x03D6,
-            "ensp": 0x2002,
-            "emsp": 0x2003,
-            "thinsp": 0x2009,
-            "zwnj": 0x200C,
-            "zwj": 0x200D,
-            "lrm": 0x200E,
-            "rlm": 0x200F,
-            "ndash": 0x2013,
-            "mdash": 0x2014,
-            "lsquo": 0x2018,
-            "rsquo": 0x2019,
-            "sbquo": 0x201A,
-            "ldquo": 0x201C,
-            "rdquo": 0x201D,
-            "bdquo": 0x201E,
-            "dagger": 0x2020,
-            "Dagger": 0x2021,
-            "bull": 0x2022,
-            "hellip": 0x2026,
-            "permil": 0x2030,
-            "prime": 0x2032,
-            "Prime": 0x2033,
-            "lsaquo": 0x2039,
-            "rsaquo": 0x203A,
-            "oline": 0x203E,
-            "frasl": 0x2044,
-            "euro": 0x20AC,
-            "image": 0x2111,
-            "weierp": 0x2118,
-            "real": 0x211C,
-            "trade": 0x2122,
-            "alefsym": 0x2135,
-            "larr": 0x2190,
-            "uarr": 0x2191,
-            "rarr": 0x2192,
-            "darr": 0x2193,
-            "harr": 0x2194,
-            "crarr": 0x21B5,
-            "lArr": 0x21D0,
-            "uArr": 0x21D1,
-            "rArr": 0x21D2,
-            "dArr": 0x21D3,
-            "hArr": 0x21D4,
-            "forall": 0x2200,
-            "part": 0x2202,
-            "exist": 0x2203,
-            "empty": 0x2205,
-            "nabla": 0x2207,
-            "isin": 0x2208,
-            "notin": 0x2209,
-            "ni": 0x220B,
-            "prod": 0x220F,
-            "sum": 0x2211,
-            "minus": 0x2212,
-            "lowast": 0x2217,
-            "radic": 0x221A,
-            "prop": 0x221D,
-            "infin": 0x221E,
-            "ang": 0x2220,
-            "and": 0x2227,
-            "or": 0x2228,
-            "cap": 0x2229,
-            "cup": 0x222A,
-            "int": 0x222B,
-            "there4": 0x2234,
-            "sim": 0x223C,
-            "cong": 0x2245,
-            "asymp": 0x2248,
-            "ne": 0x2260,
-            "equiv": 0x2261,
-            "le": 0x2264,
-            "ge": 0x2265,
-            "sub": 0x2282,
-            "sup": 0x2283,
-            "nsub": 0x2284,
-            "sube": 0x2286,
-            "supe": 0x2287,
-            "oplus": 0x2295,
-            "otimes": 0x2297,
-            "perp": 0x22A5,
-            "sdot": 0x22C5,
-            "lceil": 0x2308,
-            "rceil": 0x2309,
-            "lfloor": 0x230A,
-            "rfloor": 0x230B,
-            "lang": 0x2329,
-            "rang": 0x232A,
-            "loz": 0x25CA,
-            "spades": 0x2660,
-            "clubs": 0x2663,
-            "hearts": 0x2665,
-            "diams": 0x2666
-        });
-    }
-})(ts || (ts = {}));
-var ts;
-(function (ts) {
-    function transformESNext(context) {
-        var hoistVariableDeclaration = context.hoistVariableDeclaration;
-        var currentSourceFile;
-        return transformSourceFile;
-        function transformSourceFile(node) {
-            currentSourceFile = node;
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitor(node) {
-            if (node.transformFlags & 16) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 32) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
-                return node;
-            }
-        }
-        function visitorWorker(node) {
-            switch (node.kind) {
-                case 176:
-                    return visitObjectLiteralExpression(node);
-                case 192:
-                    return visitBinaryExpression(node);
-                case 223:
-                    return visitVariableDeclaration(node);
-                case 213:
-                    return visitForOfStatement(node);
-                case 172:
-                case 173:
-                    return node;
-                case 225:
-                    return visitFunctionDeclaration(node);
-                case 184:
-                    return visitFunctionExpression(node);
-                case 185:
-                    return visitArrowFunction(node);
-                case 144:
-                    return visitParameter(node);
-                default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return ts.visitEachChild(node, visitor, context);
-            }
-        }
-        function chunkObjectLiteralElements(elements) {
-            var chunkObject;
-            var objects = [];
-            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
-                var e = elements_3[_i];
-                if (e.kind === 259) {
-                    if (chunkObject) {
-                        objects.push(ts.createObjectLiteral(chunkObject));
-                        chunkObject = undefined;
-                    }
-                    var target = e.expression;
-                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
-                }
-                else {
-                    if (!chunkObject) {
-                        chunkObject = [];
-                    }
-                    if (e.kind === 257) {
-                        var p = e;
-                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
-                    }
-                    else {
-                        chunkObject.push(e);
-                    }
-                }
-            }
-            if (chunkObject) {
-                objects.push(ts.createObjectLiteral(chunkObject));
-            }
-            return objects;
-        }
-        function visitObjectLiteralExpression(node) {
-            if (ts.forEach(node.properties, function (p) { return p.kind === 259; })) {
-                var objects = chunkObjectLiteralElements(node.properties);
-                if (objects.length && objects[0].kind !== 176) {
-                    objects.unshift(ts.createObjectLiteral());
-                }
-                return ts.aggregateTransformFlags(ts.createCall(ts.createIdentifier("__assign"), undefined, objects));
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitBinaryExpression(node) {
-            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 48) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, visitor, true);
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitVariableDeclaration(node) {
-            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 48) {
-                var result = ts.flattenVariableDestructuring(node, undefined, visitor, undefined, true);
-                return result;
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitForOfStatement(node) {
-            var initializer = node.initializer;
-            if (!isRestBindingPattern(initializer) && !isRestAssignment(initializer)) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            return ts.convertForOf(node, undefined, visitor, ts.noop, context, true);
-        }
-        function isRestBindingPattern(initializer) {
-            if (ts.isVariableDeclarationList(initializer)) {
-                var declaration = ts.firstOrUndefined(initializer.declarations);
-                return declaration && declaration.name &&
-                    declaration.name.kind === 172 &&
-                    !!(declaration.name.transformFlags & 8388608);
-            }
-            return false;
-        }
-        function isRestAssignment(initializer) {
-            return initializer.kind === 176 &&
-                initializer.transformFlags & 8388608;
-        }
-        function visitParameter(node) {
-            if (isObjectRestParameter(node)) {
-                return ts.setOriginalNode(ts.createParameter(undefined, undefined, undefined, ts.getGeneratedNameForNode(node), undefined, undefined, node.initializer, node), node);
-            }
-            else {
-                return node;
-            }
-        }
-        function isObjectRestParameter(node) {
-            return node.name &&
-                node.name.kind === 172 &&
-                !!(node.name.transformFlags & 8388608);
-        }
-        function visitFunctionDeclaration(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-        function visitArrowFunction(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            var func = ts.setOriginalNode(ts.createArrowFunction(node.modifiers, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, body, node), node);
-            ts.setEmitFlags(func, 256);
-            return func;
-        }
-        function visitFunctionExpression(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionExpression(node.modifiers, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-    }
-    ts.transformESNext = transformESNext;
+    var entities = ts.createMap({
+        "quot": 0x0022,
+        "amp": 0x0026,
+        "apos": 0x0027,
+        "lt": 0x003C,
+        "gt": 0x003E,
+        "nbsp": 0x00A0,
+        "iexcl": 0x00A1,
+        "cent": 0x00A2,
+        "pound": 0x00A3,
+        "curren": 0x00A4,
+        "yen": 0x00A5,
+        "brvbar": 0x00A6,
+        "sect": 0x00A7,
+        "uml": 0x00A8,
+        "copy": 0x00A9,
+        "ordf": 0x00AA,
+        "laquo": 0x00AB,
+        "not": 0x00AC,
+        "shy": 0x00AD,
+        "reg": 0x00AE,
+        "macr": 0x00AF,
+        "deg": 0x00B0,
+        "plusmn": 0x00B1,
+        "sup2": 0x00B2,
+        "sup3": 0x00B3,
+        "acute": 0x00B4,
+        "micro": 0x00B5,
+        "para": 0x00B6,
+        "middot": 0x00B7,
+        "cedil": 0x00B8,
+        "sup1": 0x00B9,
+        "ordm": 0x00BA,
+        "raquo": 0x00BB,
+        "frac14": 0x00BC,
+        "frac12": 0x00BD,
+        "frac34": 0x00BE,
+        "iquest": 0x00BF,
+        "Agrave": 0x00C0,
+        "Aacute": 0x00C1,
+        "Acirc": 0x00C2,
+        "Atilde": 0x00C3,
+        "Auml": 0x00C4,
+        "Aring": 0x00C5,
+        "AElig": 0x00C6,
+        "Ccedil": 0x00C7,
+        "Egrave": 0x00C8,
+        "Eacute": 0x00C9,
+        "Ecirc": 0x00CA,
+        "Euml": 0x00CB,
+        "Igrave": 0x00CC,
+        "Iacute": 0x00CD,
+        "Icirc": 0x00CE,
+        "Iuml": 0x00CF,
+        "ETH": 0x00D0,
+        "Ntilde": 0x00D1,
+        "Ograve": 0x00D2,
+        "Oacute": 0x00D3,
+        "Ocirc": 0x00D4,
+        "Otilde": 0x00D5,
+        "Ouml": 0x00D6,
+        "times": 0x00D7,
+        "Oslash": 0x00D8,
+        "Ugrave": 0x00D9,
+        "Uacute": 0x00DA,
+        "Ucirc": 0x00DB,
+        "Uuml": 0x00DC,
+        "Yacute": 0x00DD,
+        "THORN": 0x00DE,
+        "szlig": 0x00DF,
+        "agrave": 0x00E0,
+        "aacute": 0x00E1,
+        "acirc": 0x00E2,
+        "atilde": 0x00E3,
+        "auml": 0x00E4,
+        "aring": 0x00E5,
+        "aelig": 0x00E6,
+        "ccedil": 0x00E7,
+        "egrave": 0x00E8,
+        "eacute": 0x00E9,
+        "ecirc": 0x00EA,
+        "euml": 0x00EB,
+        "igrave": 0x00EC,
+        "iacute": 0x00ED,
+        "icirc": 0x00EE,
+        "iuml": 0x00EF,
+        "eth": 0x00F0,
+        "ntilde": 0x00F1,
+        "ograve": 0x00F2,
+        "oacute": 0x00F3,
+        "ocirc": 0x00F4,
+        "otilde": 0x00F5,
+        "ouml": 0x00F6,
+        "divide": 0x00F7,
+        "oslash": 0x00F8,
+        "ugrave": 0x00F9,
+        "uacute": 0x00FA,
+        "ucirc": 0x00FB,
+        "uuml": 0x00FC,
+        "yacute": 0x00FD,
+        "thorn": 0x00FE,
+        "yuml": 0x00FF,
+        "OElig": 0x0152,
+        "oelig": 0x0153,
+        "Scaron": 0x0160,
+        "scaron": 0x0161,
+        "Yuml": 0x0178,
+        "fnof": 0x0192,
+        "circ": 0x02C6,
+        "tilde": 0x02DC,
+        "Alpha": 0x0391,
+        "Beta": 0x0392,
+        "Gamma": 0x0393,
+        "Delta": 0x0394,
+        "Epsilon": 0x0395,
+        "Zeta": 0x0396,
+        "Eta": 0x0397,
+        "Theta": 0x0398,
+        "Iota": 0x0399,
+        "Kappa": 0x039A,
+        "Lambda": 0x039B,
+        "Mu": 0x039C,
+        "Nu": 0x039D,
+        "Xi": 0x039E,
+        "Omicron": 0x039F,
+        "Pi": 0x03A0,
+        "Rho": 0x03A1,
+        "Sigma": 0x03A3,
+        "Tau": 0x03A4,
+        "Upsilon": 0x03A5,
+        "Phi": 0x03A6,
+        "Chi": 0x03A7,
+        "Psi": 0x03A8,
+        "Omega": 0x03A9,
+        "alpha": 0x03B1,
+        "beta": 0x03B2,
+        "gamma": 0x03B3,
+        "delta": 0x03B4,
+        "epsilon": 0x03B5,
+        "zeta": 0x03B6,
+        "eta": 0x03B7,
+        "theta": 0x03B8,
+        "iota": 0x03B9,
+        "kappa": 0x03BA,
+        "lambda": 0x03BB,
+        "mu": 0x03BC,
+        "nu": 0x03BD,
+        "xi": 0x03BE,
+        "omicron": 0x03BF,
+        "pi": 0x03C0,
+        "rho": 0x03C1,
+        "sigmaf": 0x03C2,
+        "sigma": 0x03C3,
+        "tau": 0x03C4,
+        "upsilon": 0x03C5,
+        "phi": 0x03C6,
+        "chi": 0x03C7,
+        "psi": 0x03C8,
+        "omega": 0x03C9,
+        "thetasym": 0x03D1,
+        "upsih": 0x03D2,
+        "piv": 0x03D6,
+        "ensp": 0x2002,
+        "emsp": 0x2003,
+        "thinsp": 0x2009,
+        "zwnj": 0x200C,
+        "zwj": 0x200D,
+        "lrm": 0x200E,
+        "rlm": 0x200F,
+        "ndash": 0x2013,
+        "mdash": 0x2014,
+        "lsquo": 0x2018,
+        "rsquo": 0x2019,
+        "sbquo": 0x201A,
+        "ldquo": 0x201C,
+        "rdquo": 0x201D,
+        "bdquo": 0x201E,
+        "dagger": 0x2020,
+        "Dagger": 0x2021,
+        "bull": 0x2022,
+        "hellip": 0x2026,
+        "permil": 0x2030,
+        "prime": 0x2032,
+        "Prime": 0x2033,
+        "lsaquo": 0x2039,
+        "rsaquo": 0x203A,
+        "oline": 0x203E,
+        "frasl": 0x2044,
+        "euro": 0x20AC,
+        "image": 0x2111,
+        "weierp": 0x2118,
+        "real": 0x211C,
+        "trade": 0x2122,
+        "alefsym": 0x2135,
+        "larr": 0x2190,
+        "uarr": 0x2191,
+        "rarr": 0x2192,
+        "darr": 0x2193,
+        "harr": 0x2194,
+        "crarr": 0x21B5,
+        "lArr": 0x21D0,
+        "uArr": 0x21D1,
+        "rArr": 0x21D2,
+        "dArr": 0x21D3,
+        "hArr": 0x21D4,
+        "forall": 0x2200,
+        "part": 0x2202,
+        "exist": 0x2203,
+        "empty": 0x2205,
+        "nabla": 0x2207,
+        "isin": 0x2208,
+        "notin": 0x2209,
+        "ni": 0x220B,
+        "prod": 0x220F,
+        "sum": 0x2211,
+        "minus": 0x2212,
+        "lowast": 0x2217,
+        "radic": 0x221A,
+        "prop": 0x221D,
+        "infin": 0x221E,
+        "ang": 0x2220,
+        "and": 0x2227,
+        "or": 0x2228,
+        "cap": 0x2229,
+        "cup": 0x222A,
+        "int": 0x222B,
+        "there4": 0x2234,
+        "sim": 0x223C,
+        "cong": 0x2245,
+        "asymp": 0x2248,
+        "ne": 0x2260,
+        "equiv": 0x2261,
+        "le": 0x2264,
+        "ge": 0x2265,
+        "sub": 0x2282,
+        "sup": 0x2283,
+        "nsub": 0x2284,
+        "sube": 0x2286,
+        "supe": 0x2287,
+        "oplus": 0x2295,
+        "otimes": 0x2297,
+        "perp": 0x22A5,
+        "sdot": 0x22C5,
+        "lceil": 0x2308,
+        "rceil": 0x2309,
+        "lfloor": 0x230A,
+        "rfloor": 0x230B,
+        "lang": 0x2329,
+        "rang": 0x232A,
+        "loz": 0x25CA,
+        "spades": 0x2660,
+        "clubs": 0x2663,
+        "hearts": 0x2665,
+        "diams": 0x2666
+    });
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     function transformES2017(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
-        var currentSourceFileExternalHelpersModuleName;
+        var currentSourceFile;
         var enabledSubstitutions;
-        var applicableSubstitutions;
         var currentSuperContainer;
         var previousOnEmitNode = context.onEmitNode;
         var previousOnSubstituteNode = context.onSubstituteNode;
         context.onEmitNode = onEmitNode;
         context.onSubstituteNode = onSubstituteNode;
-        var currentScope;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            currentSourceFileExternalHelpersModuleName = node.externalHelpersModuleName;
-            return ts.visitEachChild(node, visitor, context);
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 64) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 128) {
-                return ts.visitEachChild(node, visitor, context);
+            if ((node.transformFlags & 16) === 0) {
+                return node;
             }
-            return node;
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 119:
                     return undefined;
@@ -40849,68 +41131,37 @@ var ts;
                 case 185:
                     return visitArrowFunction(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return node;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitAwaitExpression(node) {
             return ts.setOriginalNode(ts.createYield(undefined, ts.visitNode(node.expression, visitor, ts.isExpression), node), node);
         }
         function visitMethodDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            return ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionExpression(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(undefined, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitArrowFunction(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformConciseBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            currentScope = body;
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
             var original = ts.getOriginalNode(node, ts.isFunctionLike);
             var nodeType = original.type;
             var promiseConstructor = languageVersion < 2 ? getPromiseConstructor(nodeType) : undefined;
@@ -40919,52 +41170,49 @@ var ts;
             if (!isArrowFunction) {
                 var statements = [];
                 var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, false, visitor);
-                statements.push(ts.createReturn(ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                ts.addRange(statements, endLexicalEnvironment());
                 var block = ts.createBlock(statements, node.body, true);
                 if (languageVersion >= 2) {
                     if (resolver.getNodeCheckFlags(node) & 4096) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 8);
+                        ts.addEmitHelper(block, advancedAsyncSuperHelper);
                     }
                     else if (resolver.getNodeCheckFlags(node) & 2048) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 4);
+                        ts.addEmitHelper(block, asyncSuperHelper);
                     }
                 }
                 return block;
             }
             else {
-                return ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformConciseBodyWorker(node.body, true));
+                var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
+                }
+                return expression;
             }
         }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
+        function transformFunctionBodyWorker(body, start) {
             if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
+                return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
             }
             else {
                 startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
+                var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
                 var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
+                return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
             }
         }
         function getPromiseConstructor(type) {
-            if (type) {
-                var typeName = ts.getEntityNameFromTypeNode(type);
-                if (typeName && ts.isEntityName(typeName)) {
-                    var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
-                    if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
-                        || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
-                        return typeName;
-                    }
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
                 }
             }
             return undefined;
@@ -41038,14 +41286,15 @@ var ts;
                 || kind === 152;
         }
         function onEmitNode(emitContext, node, emitCallback) {
-            var savedApplicableSubstitutions = applicableSubstitutions;
-            var savedCurrentSuperContainer = currentSuperContainer;
             if (enabledSubstitutions & 1 && isSuperContainer(node)) {
+                var savedCurrentSuperContainer = currentSuperContainer;
                 currentSuperContainer = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSuperContainer = savedCurrentSuperContainer;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
             }
-            previousOnEmitNode(emitContext, node, emitCallback);
-            applicableSubstitutions = savedApplicableSubstitutions;
-            currentSuperContainer = savedCurrentSuperContainer;
         }
         function onSubstituteNode(emitContext, node) {
             node = previousOnSubstituteNode(emitContext, node);
@@ -41068,6 +41317,33 @@ var ts;
         }
     }
     ts.transformES2017 = transformES2017;
+    function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(undefined, ts.createToken(38), undefined, undefined, [], undefined, body);
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072;
+        return ts.createCall(ts.getHelperName("__awaiter"), undefined, [
+            ts.createThis(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    var awaiterHelper = {
+        name: "typescript:awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments)).next());\n                });\n            };"
+    };
+    var asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: "\n            const _super = name => super[name];"
+    };
+    var advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -41081,55 +41357,52 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitor(node) {
-            if (node.transformFlags & 256) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 512) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
+            if ((node.transformFlags & 32) === 0) {
                 return node;
             }
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 192:
                     return visitBinaryExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
                     return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitBinaryExpression(node) {
+            switch (node.operatorToken.kind) {
+                case 61:
+                    return visitExponentiationAssignmentExpression(node);
+                case 39:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
             var left = ts.visitNode(node.left, visitor, ts.isExpression);
             var right = ts.visitNode(node.right, visitor, ts.isExpression);
-            if (node.operatorToken.kind === 61) {
-                var target = void 0;
-                var value = void 0;
-                if (ts.isElementAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
-                    value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
-                }
-                else if (ts.isPropertyAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
-                    value = ts.createPropertyAccess(expressionTemp, left.name, left);
-                }
-                else {
-                    target = left;
-                    value = left;
-                }
-                return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+            if (ts.isElementAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
+                value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
             }
-            else if (node.operatorToken.kind === 39) {
-                return ts.createMathPow(left, right, node);
+            else if (ts.isPropertyAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
+                value = ts.createPropertyAccess(expressionTemp, left.name, left);
             }
             else {
-                ts.Debug.failBadSyntaxKind(node);
-                return ts.visitEachChild(node, visitor, context);
+                target = left;
+                value = left;
             }
+            return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+        }
+        function visitExponentiationExpression(node) {
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, node);
         }
     }
     ts.transformES2016 = transformES2016;
@@ -41137,7 +41410,7 @@ var ts;
 var ts;
 (function (ts) {
     function transformES2015(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var previousOnSubstituteNode = context.onSubstituteNode;
         var previousOnEmitNode = context.onEmitNode;
@@ -41163,7 +41436,11 @@ var ts;
             }
             currentSourceFile = node;
             currentText = node.text;
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            return visited;
         }
         function visitor(node) {
             return saveStateAndInvoke(node, dispatcher);
@@ -41202,6 +41479,38 @@ var ts;
             currentNode = savedCurrentNode;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            if (currentNode) {
+                if (ts.isBlockScope(currentNode, currentParent)) {
+                    enclosingBlockScopeContainer = currentNode;
+                    enclosingBlockScopeContainerParent = currentParent;
+                }
+                if (ts.isFunctionLike(currentNode)) {
+                    enclosingFunction = currentNode;
+                    if (currentNode.kind !== 185) {
+                        enclosingNonArrowFunction = currentNode;
+                        if (!(ts.getEmitFlags(currentNode) & 131072)) {
+                            enclosingNonAsyncFunctionBody = currentNode;
+                        }
+                    }
+                }
+                switch (currentNode.kind) {
+                    case 205:
+                        enclosingVariableStatement = currentNode;
+                        break;
+                    case 224:
+                    case 223:
+                    case 174:
+                    case 172:
+                    case 173:
+                        break;
+                    default:
+                        enclosingVariableStatement = undefined;
+                }
+            }
+            currentParent = currentNode;
+            currentNode = node;
+        }
         function returnCapturedThis(node) {
             return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
         }
@@ -41209,7 +41518,7 @@ var ts;
             return isInConstructorWithCapturedSuper && node.kind === 216 && !node.expression;
         }
         function shouldCheckNode(node) {
-            return (node.transformFlags & 1024) !== 0 ||
+            return (node.transformFlags & 64) !== 0 ||
                 node.kind === 219 ||
                 (ts.isIterationStatement(node, false) && shouldConvertIterationStatementBody(node));
         }
@@ -41220,7 +41529,7 @@ var ts;
             else if (shouldCheckNode(node)) {
                 return visitJavaScript(node);
             }
-            else if (node.transformFlags & 2048 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
+            else if (node.transformFlags & 128 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -41320,14 +41629,14 @@ var ts;
                     return visitTemplateExpression(node);
                 case 195:
                     return visitYieldExpression(node);
+                case 196:
+                    return visitSpreadElement(node);
                 case 96:
                     return visitSuperKeyword();
                 case 195:
                     return ts.visitEachChild(node, visitor, context);
                 case 149:
                     return visitMethodDeclaration(node);
-                case 261:
-                    return visitSourceFileNode(node);
                 case 205:
                     return visitVariableStatement(node);
                 default:
@@ -41335,37 +41644,14 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            if (currentNode) {
-                if (ts.isBlockScope(currentNode, currentParent)) {
-                    enclosingBlockScopeContainer = currentNode;
-                    enclosingBlockScopeContainerParent = currentParent;
-                }
-                if (ts.isFunctionLike(currentNode)) {
-                    enclosingFunction = currentNode;
-                    if (currentNode.kind !== 185) {
-                        enclosingNonArrowFunction = currentNode;
-                        if (!(ts.getEmitFlags(currentNode) & 2097152)) {
-                            enclosingNonAsyncFunctionBody = currentNode;
-                        }
-                    }
-                }
-                switch (currentNode.kind) {
-                    case 205:
-                        enclosingVariableStatement = currentNode;
-                        break;
-                    case 224:
-                    case 223:
-                    case 174:
-                    case 172:
-                    case 173:
-                        break;
-                    default:
-                        enclosingVariableStatement = undefined;
-                }
-            }
-            currentParent = currentNode;
-            currentNode = node;
+        function visitSourceFile(node) {
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
+            addCaptureThisForNodeIfNeeded(statements, node);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            ts.addRange(statements, endLexicalEnvironment());
+            return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
         }
         function visitSwitchStatement(node) {
             ts.Debug.assert(convertedLoopState !== undefined);
@@ -41467,9 +41753,9 @@ var ts;
                 statements.push(exportStatement);
             }
             var emitFlags = ts.getEmitFlags(node);
-            if ((emitFlags & 33554432) === 0) {
+            if ((emitFlags & 2097152) === 0) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(statement, emitFlags | 33554432);
+                ts.setEmitFlags(statement, emitFlags | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -41482,15 +41768,15 @@ var ts;
             }
             var extendsClauseElement = ts.getClassExtendsHeritageClauseElement(node);
             var classFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, extendsClauseElement ? [ts.createParameter(undefined, undefined, undefined, "_super")] : [], undefined, transformClassBody(node, extendsClauseElement));
-            if (ts.getEmitFlags(node) & 524288) {
-                ts.setEmitFlags(classFunction, 524288);
+            if (ts.getEmitFlags(node) & 32768) {
+                ts.setEmitFlags(classFunction, 32768);
             }
             var inner = ts.createPartiallyEmittedExpression(classFunction);
             inner.end = node.end;
-            ts.setEmitFlags(inner, 49152);
+            ts.setEmitFlags(inner, 1536);
             var outer = ts.createPartiallyEmittedExpression(inner);
             outer.end = ts.skipTrivia(currentText, node.pos);
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             return ts.createParen(ts.createCall(outer, undefined, extendsClauseElement
                 ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
                 : []));
@@ -41505,19 +41791,19 @@ var ts;
             var localName = ts.getLocalName(node);
             var outer = ts.createPartiallyEmittedExpression(localName);
             outer.end = closingBraceLocation.end;
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             var statement = ts.createReturn(outer);
             statement.pos = closingBraceLocation.pos;
-            ts.setEmitFlags(statement, 49152 | 12288);
+            ts.setEmitFlags(statement, 1536 | 384);
             statements.push(statement);
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, node.members), undefined, true);
-            ts.setEmitFlags(block, 49152);
+            ts.setEmitFlags(block, 1536);
             return block;
         }
         function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
             if (extendsClauseElement) {
-                statements.push(ts.createStatement(ts.createExtendsHelper(currentSourceFile.externalHelpersModuleName, ts.getLocalName(node)), extendsClauseElement));
+                statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), extendsClauseElement));
             }
         }
         function addConstructor(statements, node, extendsClauseElement) {
@@ -41525,29 +41811,27 @@ var ts;
             var hasSynthesizedSuper = hasSynthesizedDefaultSuperCall(constructor, extendsClauseElement !== undefined);
             var constructorFunction = ts.createFunctionDeclaration(undefined, undefined, undefined, ts.getDeclarationName(node), undefined, transformConstructorParameters(constructor, hasSynthesizedSuper), undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), constructor || node);
             if (extendsClauseElement) {
-                ts.setEmitFlags(constructorFunction, 256);
+                ts.setEmitFlags(constructorFunction, 8);
             }
             statements.push(constructorFunction);
         }
         function transformConstructorParameters(constructor, hasSynthesizedSuper) {
-            if (constructor && !hasSynthesizedSuper) {
-                return ts.visitNodes(constructor.parameters, visitor, ts.isParameter);
-            }
-            return [];
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
             var statements = [];
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = -1;
             if (hasSynthesizedSuper) {
-                statementOffset = 1;
+                statementOffset = 0;
             }
             else if (constructor) {
                 statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, false, visitor);
             }
             if (constructor) {
-                ts.addDefaultValueAssignmentsIfNeeded(statements, constructor, visitor, false);
-                ts.addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+                addDefaultValueAssignmentsIfNeeded(statements, constructor);
+                addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
                 ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
             }
             var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, !!extendsClauseElement, hasSynthesizedSuper, statementOffset);
@@ -41569,7 +41853,7 @@ var ts;
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : node, true);
             if (!constructor) {
-                ts.setEmitFlags(block, 49152);
+                ts.setEmitFlags(block, 1536);
             }
             return block;
         }
@@ -41595,7 +41879,7 @@ var ts;
         function declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, ctor, hasExtendsClause, hasSynthesizedSuper, statementOffset) {
             if (!hasExtendsClause) {
                 if (ctor) {
-                    ts.addCaptureThisForNodeIfNeeded(statements, ctor, enableSubstitutionsForCapturedThis);
+                    addCaptureThisForNodeIfNeeded(statements, ctor);
                 }
                 return 0;
             }
@@ -41604,7 +41888,7 @@ var ts;
                 return 2;
             }
             if (hasSynthesizedSuper) {
-                ts.captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
+                captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
                 enableSubstitutionsForCapturedThis();
                 return 1;
             }
@@ -41624,11 +41908,11 @@ var ts;
                     || superCallExpression.left.kind !== 179) {
                     ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
                 }
-                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 49152)));
+                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536)));
                 statements.push(returnStatement);
                 return 2;
             }
-            ts.captureThisForNode(statements, ctor, superCallExpression, enableSubstitutionsForCapturedThis, firstStatement);
+            captureThisForNode(statements, ctor, superCallExpression, firstStatement);
             if (superCallExpression) {
                 return 1;
             }
@@ -41636,7 +41920,7 @@ var ts;
         }
         function createDefaultSuperCallOrThis() {
             var actualThis = ts.createThis();
-            ts.setEmitFlags(actualThis, 128);
+            ts.setEmitFlags(actualThis, 4);
             var superCall = ts.createFunctionApply(ts.createIdentifier("_super"), actualThis, ts.createIdentifier("arguments"));
             return ts.createLogicalOr(superCall, actualThis);
         }
@@ -41654,6 +41938,86 @@ var ts;
                 return node;
             }
         }
+        function shouldAddDefaultValueAssignments(node) {
+            return (node.transformFlags & 131072) !== 0;
+        }
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!shouldAddDefaultValueAssignments(node)) {
+                return;
+            }
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name_37 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name_37)) {
+                    addDefaultValueAssignmentForBindingPattern(statements, parameter, name_37, initializer);
+                }
+                else if (initializer) {
+                    addDefaultValueAssignmentForInitializer(statements, parameter, name_37, initializer);
+                }
+            }
+        }
+        function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            var temp = ts.getGeneratedNameForNode(parameter);
+            if (name.elements.length > 0) {
+                statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, temp))), 524288));
+            }
+            else if (initializer) {
+                statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288));
+            }
+        }
+        function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
+                ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer)), parameter))
+            ], parameter), 1 | 32 | 384), undefined, parameter);
+            statement.startsOnNewLine = true;
+            ts.setEmitFlags(statement, 384 | 32 | 524288);
+            statements.push(statement);
+        }
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+        }
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return;
+            }
+            var declarationName = ts.getMutableClone(parameter.name);
+            ts.setEmitFlags(declarationName, 48);
+            var expressionName = ts.getSynthesizedClone(parameter.name);
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, undefined, ts.createArrayLiteral([]))
+            ]), parameter), 524288));
+            var forStatement = ts.createFor(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, undefined, ts.createLiteral(restIndex))
+            ], parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), parameter), ts.createPostfixIncrement(temp, parameter), ts.createBlock([
+                ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 524288);
+            ts.startOnNewLine(forStatement);
+            statements.push(forStatement);
+        }
+        function addCaptureThisForNodeIfNeeded(statements, node) {
+            if (node.transformFlags & 32768 && node.kind !== 185) {
+                captureThisForNode(statements, node, ts.createThis());
+            }
+        }
+        function captureThisForNode(statements, node, initializer, originalStatement) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("_this", undefined, initializer)
+            ]), originalStatement);
+            ts.setEmitFlags(captureThisStatement, 1536 | 524288);
+            ts.setSourceMapRange(captureThisStatement, node);
+            statements.push(captureThisStatement);
+        }
         function addClassMembers(statements, node) {
             for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
                 var member = _a[_i];
@@ -41685,33 +42049,34 @@ var ts;
         function transformClassMethodDeclarationToStatement(receiver, member) {
             var commentRange = ts.getCommentRange(member);
             var sourceMapRange = ts.getSourceMapRange(member);
-            var func = transformFunctionLikeToExpression(member, member, undefined);
-            ts.setEmitFlags(func, 49152);
-            ts.setSourceMapRange(func, sourceMapRange);
-            var statement = ts.createStatement(ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name), func), member);
+            var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name);
+            var memberFunction = transformFunctionLikeToExpression(member, member, undefined);
+            ts.setEmitFlags(memberFunction, 1536);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), member);
             ts.setOriginalNode(statement, member);
             ts.setCommentRange(statement, commentRange);
-            ts.setEmitFlags(statement, 1536);
+            ts.setEmitFlags(statement, 48);
             return statement;
         }
         function transformAccessorsToStatement(receiver, accessors) {
             var statement = ts.createStatement(transformAccessorsToExpression(receiver, accessors, false), ts.getSourceMapRange(accessors.firstAccessor));
-            ts.setEmitFlags(statement, 49152);
+            ts.setEmitFlags(statement, 1536);
             return statement;
         }
         function transformAccessorsToExpression(receiver, _a, startsOnNewLine) {
             var firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
             var target = ts.getMutableClone(receiver);
-            ts.setEmitFlags(target, 49152 | 1024);
+            ts.setEmitFlags(target, 1536 | 32);
             ts.setSourceMapRange(target, firstAccessor.name);
             var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
-            ts.setEmitFlags(propertyName, 49152 | 512);
+            ts.setEmitFlags(propertyName, 1536 | 16);
             ts.setSourceMapRange(propertyName, firstAccessor.name);
             var properties = [];
             if (getAccessor) {
                 var getterFunction = transformFunctionLikeToExpression(getAccessor, undefined, undefined);
                 ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
-                ts.setEmitFlags(getterFunction, 16384);
+                ts.setEmitFlags(getterFunction, 512);
                 var getter = ts.createPropertyAssignment("get", getterFunction);
                 ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
                 properties.push(getter);
@@ -41719,7 +42084,7 @@ var ts;
             if (setAccessor) {
                 var setterFunction = transformFunctionLikeToExpression(setAccessor, undefined, undefined);
                 ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
-                ts.setEmitFlags(setterFunction, 16384);
+                ts.setEmitFlags(setterFunction, 512);
                 var setter = ts.createPropertyAssignment("set", setterFunction);
                 ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
                 properties.push(setter);
@@ -41736,28 +42101,91 @@ var ts;
             return call;
         }
         function visitArrowFunction(node) {
-            if (node.transformFlags & 262144) {
+            if (node.transformFlags & 16384) {
                 enableSubstitutionsForCapturedThis();
             }
-            var func = transformFunctionLikeToExpression(node, node, undefined);
-            ts.setEmitFlags(func, 256);
+            var func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node), node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8);
             return func;
         }
         function visitFunctionExpression(node) {
-            return transformFunctionLikeToExpression(node, node, node.name);
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis), node), node);
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformFunctionLikeToExpression(node, location, name) {
             var savedContainingNonArrowFunction = enclosingNonArrowFunction;
             if (node.kind !== 185) {
                 enclosingNonArrowFunction = node;
             }
-            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, saveStateAndInvoke(node, function (node) { return ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis); }), location), node);
+            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, saveStateAndInvoke(node, transformFunctionBody), location), node);
             enclosingNonArrowFunction = savedContainingNonArrowFunction;
             return expression;
         }
+        function transformFunctionBody(node) {
+            var multiLine = false;
+            var singleLine = false;
+            var statementsLocation;
+            var closeBraceLocation;
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
+            }
+            addCaptureThisForNodeIfNeeded(statements, node);
+            addDefaultValueAssignmentsIfNeeded(statements, node);
+            addRestParameterIfNeeded(statements, node, false);
+            if (!multiLine && statements.length > 0) {
+                multiLine = true;
+            }
+            if (ts.isBlock(body)) {
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 185);
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression, body);
+                ts.setEmitFlags(returnStatement, 384 | 32 | 1024);
+                statements.push(returnStatement);
+                closeBraceLocation = body;
+            }
+            var lexicalEnvironment = context.endLexicalEnvironment();
+            ts.addRange(statements, lexicalEnvironment);
+            if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
+                multiLine = true;
+            }
+            var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 17, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
         function visitExpressionStatement(node) {
             switch (node.expression.kind) {
                 case 183:
@@ -41768,19 +42196,20 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitParenthesizedExpression(node, needsDestructuringValue) {
-            if (needsDestructuringValue) {
+            if (!needsDestructuringValue) {
                 switch (node.expression.kind) {
                     case 183:
-                        return ts.createParen(visitParenthesizedExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, false));
                     case 192:
-                        return ts.createParen(visitBinaryExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, false));
                 }
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitBinaryExpression(node, needsDestructuringValue) {
-            ts.Debug.assert(ts.isDestructuringAssignment(node));
-            return ts.flattenDestructuringAssignment(context, node, needsDestructuringValue, hoistVariableDeclaration, visitor);
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, needsDestructuringValue);
+            }
         }
         function visitVariableStatement(node) {
             if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3) == 0) {
@@ -41791,7 +42220,7 @@ var ts;
                     if (decl.initializer) {
                         var assignment = void 0;
                         if (ts.isBindingPattern(decl.name)) {
-                            assignment = ts.flattenVariableDestructuringToExpression(decl, hoistVariableDeclaration, undefined, visitor);
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0);
                         }
                         else {
                             assignment = ts.createBinary(decl.name, 57, ts.visitNode(decl.initializer, visitor, ts.isExpression));
@@ -41818,7 +42247,7 @@ var ts;
             var declarationList = ts.createVariableDeclarationList(declarations, node);
             ts.setOriginalNode(declarationList, node);
             ts.setCommentRange(declarationList, node);
-            if (node.transformFlags & 67108864
+            if (node.transformFlags & 8388608
                 && (ts.isBindingPattern(node.declarations[0].name)
                     || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
                 var firstDeclaration = ts.firstOrUndefined(declarations);
@@ -41851,17 +42280,17 @@ var ts;
                 return visitVariableDeclaration(node);
             }
             if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
-                var clone_5 = ts.getMutableClone(node);
-                clone_5.initializer = ts.createVoidZero();
-                return clone_5;
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitVariableDeclaration(node) {
             if (ts.isBindingPattern(node.name)) {
-                var recordTempVariablesInLine = !enclosingVariableStatement
-                    || !ts.hasModifier(enclosingVariableStatement, 1);
-                return ts.flattenVariableDestructuring(node, undefined, visitor, recordTempVariablesInLine ? undefined : hoistVariableDeclaration);
+                var hoistTempVariables = enclosingVariableStatement
+                    && ts.hasModifier(enclosingVariableStatement, 1);
+                return ts.flattenDestructuringBinding(node, visitor, context, 0, undefined, hoistTempVariables);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -41900,7 +42329,69 @@ var ts;
             return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
         }
         function convertForOfToFor(node, convertedLoopBodyStatements) {
-            return ts.convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, false);
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var initializer = node.initializer;
+            var statements = [];
+            var counter = ts.createLoopVariable();
+            var rhsReference = expression.kind === 70
+                ? ts.createUniqueName(expression.text)
+                : ts.createTempVariable(undefined);
+            var elementAccess = ts.createElementAccess(rhsReference, counter);
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (initializer.flags & 3) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0, elementAccess);
+                    var declarationList = ts.createVariableDeclarationList(declarations, initializer);
+                    ts.setOriginalNode(declarationList, initializer);
+                    var firstDeclaration = declarations[0];
+                    var lastDeclaration = ts.lastOrUndefined(declarations);
+                    ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
+                    statements.push(ts.createVariableStatement(undefined, declarationList));
+                }
+                else {
+                    statements.push(ts.createVariableStatement(undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(undefined), undefined, ts.createElementAccess(rhsReference, counter))
+                    ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                var assignment = ts.createAssignment(initializer, elementAccess);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0)));
+                }
+                else {
+                    assignment.end = initializer.end;
+                    statements.push(ts.createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            var bodyLocation;
+            var statementsLocation;
+            if (convertedLoopBodyStatements) {
+                ts.addRange(statements, convertedLoopBodyStatements);
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                if (ts.isBlock(statement)) {
+                    ts.addRange(statements, statement.statements);
+                    bodyLocation = statement;
+                    statementsLocation = statement.statements;
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+            ts.setEmitFlags(expression, 48 | ts.getEmitFlags(expression));
+            var body = ts.createBlock(ts.createNodeArray(statements, statementsLocation), bodyLocation);
+            ts.setEmitFlags(body, 48 | 384);
+            var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(counter, undefined, ts.createLiteral(0), ts.moveRangePos(node.expression, -1)),
+                ts.createVariableDeclaration(rhsReference, undefined, expression, node.expression)
+            ], node.expression), 1048576), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), node.expression), ts.createPostfixIncrement(counter, node.expression), body, node);
+            ts.setEmitFlags(forStatement, 256);
+            return forStatement;
         }
         function visitObjectLiteralExpression(node) {
             var properties = node.properties;
@@ -41908,7 +42399,7 @@ var ts;
             var numInitialProperties = numProperties;
             for (var i = 0; i < numProperties; i++) {
                 var property = properties[i];
-                if (property.transformFlags & 134217728
+                if (property.transformFlags & 16777216
                     || property.name.kind === 142) {
                     numInitialProperties = i;
                     break;
@@ -41917,7 +42408,7 @@ var ts;
             ts.Debug.assert(numInitialProperties !== numProperties);
             var temp = ts.createTempVariable(hoistVariableDeclaration);
             var expressions = [];
-            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 524288));
+            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 32768));
             if (node.multiLine) {
                 assignment.startsOnNewLine = true;
             }
@@ -41998,26 +42489,26 @@ var ts;
             var currentState = convertedLoopState;
             convertedLoopState = outerConvertedLoopState;
             if (loopOutParameters.length) {
-                var statements_3 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
-                copyOutParameters(loopOutParameters, 1, statements_3);
-                loopBody = ts.createBlock(statements_3, undefined, true);
+                var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
+                copyOutParameters(loopOutParameters, 1, statements_4);
+                loopBody = ts.createBlock(statements_4, undefined, true);
             }
             if (!ts.isBlock(loopBody)) {
                 loopBody = ts.createBlock([loopBody], undefined, true);
             }
             var isAsyncBlockContainingAwait = enclosingNonArrowFunction
-                && (ts.getEmitFlags(enclosingNonArrowFunction) & 2097152) !== 0
-                && (node.statement.transformFlags & 134217728) !== 0;
+                && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072) !== 0
+                && (node.statement.transformFlags & 16777216) !== 0;
             var loopBodyFlags = 0;
             if (currentState.containsLexicalThis) {
-                loopBodyFlags |= 256;
+                loopBodyFlags |= 8;
             }
             if (isAsyncBlockContainingAwait) {
-                loopBodyFlags |= 2097152;
+                loopBodyFlags |= 131072;
             }
             var convertedLoopVariable = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
                 ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, isAsyncBlockContainingAwait ? ts.createToken(38) : undefined, undefined, undefined, loopParameters, undefined, loopBody), loopBodyFlags))
-            ]), 16777216));
+            ]), 1048576));
             var statements = [convertedLoopVariable];
             var extraVariableDeclarations;
             if (currentState.argumentsName) {
@@ -42234,7 +42725,7 @@ var ts;
             ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
             var temp = ts.createTempVariable(undefined);
             var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
-            var vars = ts.flattenVariableDestructuring(node.variableDeclaration, temp, visitor);
+            var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0, temp);
             var list = ts.createVariableDeclarationList(vars, node.variableDeclaration, node.variableDeclaration.flags);
             var destructure = ts.createVariableStatement(undefined, list);
             return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
@@ -42246,7 +42737,7 @@ var ts;
         function visitMethodDeclaration(node) {
             ts.Debug.assert(!ts.isComputedPropertyName(node.name));
             var functionExpression = transformFunctionLikeToExpression(node, ts.moveRangePos(node, -1), undefined);
-            ts.setEmitFlags(functionExpression, 16384 | ts.getEmitFlags(functionExpression));
+            ts.setEmitFlags(functionExpression, 512 | ts.getEmitFlags(functionExpression));
             return ts.createPropertyAssignment(node.name, functionExpression, node);
         }
         function visitShorthandPropertyAssignment(node) {
@@ -42267,10 +42758,10 @@ var ts;
         function visitCallExpressionWithPotentialCapturedThisAssignment(node, assignToCapturedThis) {
             var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             if (node.expression.kind === 96) {
-                ts.setEmitFlags(thisArg, 128);
+                ts.setEmitFlags(thisArg, 4);
             }
             var resultingCall;
-            if (node.transformFlags & 8388608) {
+            if (node.transformFlags & 524288) {
                 resultingCall = ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), ts.visitNode(thisArg, visitor, ts.isExpression), transformAndSpreadElements(node.arguments, false, false, false));
             }
             else {
@@ -42278,7 +42769,7 @@ var ts;
             }
             if (node.expression.kind === 96) {
                 var actualThis = ts.createThis();
-                ts.setEmitFlags(actualThis, 128);
+                ts.setEmitFlags(actualThis, 4);
                 var initializer = ts.createLogicalOr(resultingCall, actualThis);
                 return assignToCapturedThis
                     ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
@@ -42287,7 +42778,7 @@ var ts;
             return resultingCall;
         }
         function visitNewExpression(node) {
-            ts.Debug.assert((node.transformFlags & 8388608) !== 0);
+            ts.Debug.assert((node.transformFlags & 524288) !== 0);
             var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             return ts.createNew(ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), thisArg, transformAndSpreadElements(ts.createNodeArray([ts.createVoidZero()].concat(node.arguments)), false, false, false)), undefined, []);
         }
@@ -42315,6 +42806,9 @@ var ts;
         function visitSpanOfNonSpreads(chunk, multiLine, hasTrailingComma) {
             return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, undefined, hasTrailingComma), visitor, ts.isExpression), undefined, multiLine);
         }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
         function visitExpressionOfSpread(node) {
             return ts.visitNode(node.expression, visitor, ts.isExpression);
         }
@@ -42392,18 +42886,6 @@ var ts;
                 ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
                 : ts.createIdentifier("_super");
         }
-        function visitSourceFileNode(node) {
-            var _a = ts.span(node.statements, ts.isPrologueDirective), prologue = _a[0], remaining = _a[1];
-            var statements = [];
-            startLexicalEnvironment();
-            ts.addRange(statements, prologue);
-            ts.addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-            ts.addRange(statements, ts.visitNodes(ts.createNodeArray(remaining), visitor, ts.isStatement));
-            ts.addRange(statements, endLexicalEnvironment());
-            var clone = ts.getMutableClone(node);
-            clone.statements = ts.createNodeArray(statements, node.statements);
-            return clone;
-        }
         function onEmitNode(emitContext, node, emitCallback) {
             var savedEnclosingFunction = enclosingFunction;
             if (enabledSubstitutions & 1 && ts.isFunctionLike(node)) {
@@ -42483,7 +42965,7 @@ var ts;
         function substituteThisKeyword(node) {
             if (enabledSubstitutions & 1
                 && enclosingFunction
-                && ts.getEmitFlags(enclosingFunction) & 256) {
+                && ts.getEmitFlags(enclosingFunction) & 8) {
                 return ts.createIdentifier("_this", node);
             }
             return node;
@@ -42496,8 +42978,7 @@ var ts;
             if (!constructor || !hasExtendsClause) {
                 return false;
             }
-            var parameter = ts.singleOrUndefined(constructor.parameters);
-            if (!parameter || !ts.nodeIsSynthesized(parameter) || !parameter.dotDotDotToken) {
+            if (ts.some(constructor.parameters)) {
                 return false;
             }
             var statement = ts.firstOrUndefined(constructor.body.statements);
@@ -42517,10 +42998,23 @@ var ts;
                 return false;
             }
             var expression = callArgument.expression;
-            return ts.isIdentifier(expression) && expression === parameter.name;
+            return ts.isIdentifier(expression) && expression.text === "arguments";
         }
     }
     ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(extendsHelper);
+        return ts.createCall(ts.getHelperName("__extends"), undefined, [
+            name,
+            ts.createIdentifier("_super")
+        ]);
+    }
+    var extendsHelper = {
+        name: "typescript:extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -42532,7 +43026,7 @@ var ts;
         _a[7] = "endfinally",
         _a));
     function transformGenerators(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var resolver = context.getEmitResolver();
@@ -42566,15 +43060,15 @@ var ts;
         var withBlockStack;
         return transformSourceFile;
         function transformSourceFile(node) {
-            if (ts.isDeclarationFile(node)) {
+            if (ts.isDeclarationFile(node)
+                || (node.transformFlags & 512) === 0) {
                 return node;
             }
-            if (node.transformFlags & 8192) {
-                currentSourceFile = node;
-                node = ts.visitEachChild(node, visitor, context);
-                currentSourceFile = undefined;
-            }
-            return node;
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
             var transformFlags = node.transformFlags;
@@ -42584,10 +43078,10 @@ var ts;
             else if (inGeneratorFunctionBody) {
                 return visitJavaScriptInGeneratorFunctionBody(node);
             }
-            else if (transformFlags & 4096) {
+            else if (transformFlags & 256) {
                 return visitGenerator(node);
             }
-            else if (transformFlags & 8192) {
+            else if (transformFlags & 512) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -42630,10 +43124,10 @@ var ts;
                 case 216:
                     return visitReturnStatement(node);
                 default:
-                    if (node.transformFlags & 134217728) {
+                    if (node.transformFlags & 16777216) {
                         return visitJavaScriptContainingYield(node);
                     }
-                    else if (node.transformFlags & (8192 | 268435456)) {
+                    else if (node.transformFlags & (512 | 33554432)) {
                         return ts.visitEachChild(node, visitor, context);
                     }
                     else {
@@ -42675,8 +43169,8 @@ var ts;
             }
         }
         function visitFunctionDeclaration(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -42696,8 +43190,8 @@ var ts;
             }
         }
         function visitFunctionExpression(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -42748,7 +43242,7 @@ var ts;
             operationArguments = undefined;
             operationLocations = undefined;
             state = ts.createTempVariable(undefined);
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
             transformAndEmitStatements(body.statements, statementOffset);
             var buildResult = build();
@@ -42770,12 +43264,12 @@ var ts;
             return ts.createBlock(statements, body, body.multiLine);
         }
         function visitVariableStatement(node) {
-            if (node.transformFlags & 134217728) {
+            if (node.transformFlags & 16777216) {
                 transformAndEmitVariableDeclarationList(node.declarationList);
                 return undefined;
             }
             else {
-                if (ts.getEmitFlags(node) & 8388608) {
+                if (ts.getEmitFlags(node) & 524288) {
                     return node;
                 }
                 for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
@@ -42852,10 +43346,10 @@ var ts;
                 else if (node.operatorToken.kind === 25) {
                     return visitCommaExpression(node);
                 }
-                var clone_6 = ts.getMutableClone(node);
-                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
-                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
-                return clone_6;
+                var clone_4 = ts.getMutableClone(node);
+                clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_4;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -42920,26 +43414,30 @@ var ts;
             return createGeneratorResume();
         }
         function visitArrayLiteralExpression(node) {
-            return visitElements(node.elements, node.multiLine);
+            return visitElements(node.elements, undefined, undefined, node.multiLine);
         }
-        function visitElements(elements, _multiLine) {
+        function visitElements(elements, leadingElement, location, multiLine) {
             var numInitialElements = countInitialNodesWithoutYield(elements);
             var temp = declareLocal();
             var hasAssignedTemp = false;
             if (numInitialElements > 0) {
-                emitAssignment(temp, ts.createArrayLiteral(ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements)));
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? [leadingElement].concat(initialElements) : initialElements));
+                leadingElement = undefined;
                 hasAssignedTemp = true;
             }
             var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
             return hasAssignedTemp
-                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                : ts.createArrayLiteral(expressions);
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
             function reduceElement(expressions, element) {
                 if (containsYield(element) && expressions.length > 0) {
                     emitAssignment(temp, hasAssignedTemp
-                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                        : ts.createArrayLiteral(expressions));
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, undefined, multiLine));
                     hasAssignedTemp = true;
+                    leadingElement = undefined;
                     expressions = [];
                 }
                 expressions.push(ts.visitNode(element, visitor, ts.isExpression));
@@ -42973,10 +43471,10 @@ var ts;
         }
         function visitElementAccessExpression(node) {
             if (containsYield(node.argumentExpression)) {
-                var clone_7 = ts.getMutableClone(node);
-                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
-                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
-                return clone_7;
+                var clone_5 = ts.getMutableClone(node);
+                clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_5;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -42990,7 +43488,7 @@ var ts;
         function visitNewExpression(node) {
             if (ts.forEach(node.arguments, containsYield)) {
                 var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
-                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments)), undefined, [], node), node);
+                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, ts.createVoidZero())), undefined, [], node), node);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -43432,7 +43930,7 @@ var ts;
             }
         }
         function containsYield(node) {
-            return node && (node.transformFlags & 134217728) !== 0;
+            return node && (node.transformFlags & 16777216) !== 0;
         }
         function countInitialNodesWithoutYield(nodes) {
             var numNodes = nodes.length;
@@ -43462,12 +43960,12 @@ var ts;
                 if (ts.isIdentifier(original) && original.parent) {
                     var declaration = resolver.getReferencedValueDeclaration(original);
                     if (declaration) {
-                        var name_37 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
-                        if (name_37) {
-                            var clone_8 = ts.getMutableClone(name_37);
-                            ts.setSourceMapRange(clone_8, node);
-                            ts.setCommentRange(clone_8, node);
-                            return clone_8;
+                        var name_38 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
+                        if (name_38) {
+                            var clone_6 = ts.getMutableClone(name_38);
+                            ts.setSourceMapRange(clone_6, node);
+                            ts.setCommentRange(clone_6, node);
+                            return clone_6;
                         }
                     }
                 }
@@ -43858,10 +44356,7 @@ var ts;
             currentExceptionBlock = undefined;
             withBlockStack = undefined;
             var buildResult = buildStatements();
-            return ts.createCall(ts.createHelperName(currentSourceFile.externalHelpersModuleName, "__generator"), undefined, [
-                ts.createThis(),
-                ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 4194304)
-            ]);
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 262144));
         }
         function buildStatements() {
             if (operations) {
@@ -44124,6 +44619,16 @@ var ts;
         }
     }
     ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(generatorHelper);
+        return ts.createCall(ts.getHelperName("__generator"), undefined, [ts.createThis(), body]);
+    }
+    var generatorHelper = {
+        name: "typescript:generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
     var _a;
 })(ts || (ts = {}));
 var ts;
@@ -44180,7 +44685,7 @@ var ts;
             _a[ts.ModuleKind.AMD] = transformAMDModule,
             _a[ts.ModuleKind.UMD] = transformUMDModule,
             _a));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var compilerOptions = context.getCompilerOptions();
         var resolver = context.getEmitResolver();
         var host = context.getEmitHost();
@@ -44209,7 +44714,7 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver);
+            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
             var updated = transformModule(node);
             currentSourceFile = undefined;
@@ -44220,12 +44725,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, false);
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(updated, 2 | ts.getEmitFlags(node));
+                ts.addEmitHelper(updated, exportStarHelper);
             }
             return updated;
         }
@@ -44235,8 +44741,7 @@ var ts;
             return transformAsynchronousModule(node, define, moduleName, true);
         }
         function transformUMDModule(node) {
-            var define = ts.createIdentifier("define");
-            ts.setEmitFlags(define, 16);
+            var define = ts.createRawExpression(umdHelper);
             return transformAsynchronousModule(node, define, undefined, false);
         }
         function transformAsynchronousModule(node, define, moduleName, includeNonAmdDependencies) {
@@ -44273,7 +44778,7 @@ var ts;
                 var externalModuleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
                 var importAliasName = ts.getLocalNameForExternalImport(importNode, currentSourceFile);
                 if (includeNonAmdDependencies && importAliasName) {
-                    ts.setEmitFlags(importAliasName, 128);
+                    ts.setEmitFlags(importAliasName, 4);
                     aliasedModuleNames.push(externalModuleName);
                     importAliasNames.push(ts.createParameter(undefined, undefined, undefined, importAliasName));
                 }
@@ -44287,12 +44792,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, true);
             var body = ts.createBlock(statements, undefined, true);
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(body, 2);
+                ts.addEmitHelper(body, exportStarHelper);
             }
             return body;
         }
@@ -44300,12 +44806,12 @@ var ts;
             if (currentModuleInfo.exportEquals) {
                 if (emitAsReturn) {
                     var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 12288 | 49152);
+                    ts.setEmitFlags(statement, 384 | 1536);
                     statements.push(statement);
                 }
                 else {
                     var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 49152);
+                    ts.setEmitFlags(statement, 1536);
                     statements.push(statement);
                 }
             }
@@ -44326,9 +44832,9 @@ var ts;
                     return visitFunctionDeclaration(node);
                 case 226:
                     return visitClassDeclaration(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return node;
@@ -44519,7 +45025,7 @@ var ts;
         }
         function transformInitializedVariable(node) {
             if (ts.isBindingPattern(node.name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createExportExpression);
+                return ts.flattenDestructuringAssignment(node, undefined, context, 0, false, createExportExpression);
             }
             else {
                 return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, node.name), node.initializer);
@@ -44533,7 +45039,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -44653,7 +45159,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value), location);
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -44720,6 +45226,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
                 if (exportContainer && exportContainer.kind === 261) {
@@ -44731,8 +45244,8 @@ var ts;
                         return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"), node);
                     }
                     else if (ts.isImportSpecifier(importDeclaration)) {
-                        var name_38 = importDeclaration.propertyName || importDeclaration.name;
-                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_38), node);
+                        var name_39 = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_39), node);
                     }
                 }
             }
@@ -44791,6 +45304,12 @@ var ts;
         var _a;
     }
     ts.transformModule = transformModule;
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        scoped: true,
+        text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
+    };
+    var umdHelper = "\n        (function (dependencies, factory) {\n            if (typeof module === 'object' && typeof module.exports === 'object') {\n                var v = factory(require, exports); if (v !== undefined) module.exports = v;\n            }\n            else if (typeof define === 'function' && define.amd) {\n                define(dependencies, factory);\n            }\n        })";
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -44829,14 +45348,15 @@ var ts;
             var id = ts.getOriginalNodeId(node);
             currentSourceFile = node;
             enclosingBlockScopedContainer = node;
-            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver);
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
             contextObject = ts.createUniqueName("context");
             var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
             var moduleBodyFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
                 ts.createParameter(undefined, undefined, undefined, exportFunction),
                 ts.createParameter(undefined, undefined, undefined, contextObject)
-            ], undefined, createSystemModuleBody(node, dependencyGroups));
+            ], undefined, moduleBodyBlock);
             var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
             var dependencies = ts.createArrayLiteral(ts.map(dependencyGroups, function (dependencyGroup) { return dependencyGroup.name; }));
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray([
@@ -44844,7 +45364,9 @@ var ts;
                     ? [moduleName, dependencies, moduleBodyFunction]
                     : [dependencies, moduleBodyFunction]))
             ], node.statements));
-            ts.setEmitFlags(updated, ts.getEmitFlags(node) & ~1);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
             if (noSubstitution) {
                 noSubstitutionMap[id] = noSubstitution;
                 noSubstitution = undefined;
@@ -44885,6 +45407,7 @@ var ts;
             statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                 ts.createVariableDeclaration("__moduleName", undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
             ])));
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true);
             var executeStatements = ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset);
             ts.addRange(statements, hoistedStatements);
             ts.addRange(statements, endLexicalEnvironment());
@@ -44893,9 +45416,7 @@ var ts;
                 ts.createPropertyAssignment("setters", createSettersArray(exportStarFunction, dependencyGroups)),
                 ts.createPropertyAssignment("execute", ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock(executeStatements, undefined, true)))
             ]), true)));
-            var body = ts.createBlock(statements, undefined, true);
-            ts.setEmitFlags(body, 1);
-            return body;
+            return ts.createBlock(statements, undefined, true);
         }
         function addExportStarIfNeeded(statements) {
             if (!moduleInfo.hasExportStarsToExportValues) {
@@ -44955,7 +45476,7 @@ var ts;
             var exports = ts.createIdentifier("exports");
             var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
             if (localNames) {
-                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createHasOwnProperty(localNames, n)));
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), undefined, [n])));
             }
             return ts.createFunctionDeclaration(undefined, undefined, undefined, exportStarFunction, undefined, [ts.createParameter(undefined, undefined, undefined, m)], undefined, ts.createBlock([
                 ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
@@ -44964,7 +45485,7 @@ var ts;
                 ts.createForIn(ts.createVariableDeclarationList([
                     ts.createVariableDeclaration(n, undefined)
                 ]), m, ts.createBlock([
-                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 32)
+                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1)
                 ])),
                 ts.createStatement(ts.createCall(exportFunction, undefined, [exports]))
             ], undefined, true));
@@ -45136,14 +45657,14 @@ var ts;
             }
         }
         function shouldHoistVariableDeclarationList(node) {
-            return (ts.getEmitFlags(node) & 16777216) === 0
+            return (ts.getEmitFlags(node) & 1048576) === 0
                 && (enclosingBlockScopedContainer.kind === 261
                     || (ts.getOriginalNode(node).flags & 3) === 0);
         }
         function transformInitializedVariable(node, isExportedDeclaration) {
             var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
             return ts.isBindingPattern(node.name)
-                ? ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createAssignment, destructuringVisitor)
+                ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, false, createAssignment)
                 : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
         }
         function createExportedVariableAssignment(name, value, location) {
@@ -45167,7 +45688,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -45284,7 +45805,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value));
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -45328,9 +45849,9 @@ var ts;
                     return visitCatchClause(node);
                 case 204:
                     return visitBlock(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return destructuringVisitor(node);
@@ -45420,11 +45941,11 @@ var ts;
             return node;
         }
         function destructuringVisitor(node) {
-            if (node.transformFlags & 16384
+            if (node.transformFlags & 1024
                 && node.kind === 192) {
                 return visitDestructuringAssignment(node);
             }
-            else if (node.transformFlags & 32768) {
+            else if (node.transformFlags & 2048) {
                 return ts.visitEachChild(node, destructuringVisitor, context);
             }
             else {
@@ -45433,7 +45954,7 @@ var ts;
         }
         function visitDestructuringAssignment(node) {
             if (hasExportedReferenceInDestructuringTarget(node.left)) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, destructuringVisitor);
+                return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, true);
             }
             return ts.visitEachChild(node, destructuringVisitor, context);
         }
@@ -45515,6 +46036,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var importDeclaration = resolver.getReferencedImportDeclaration(node);
                 if (importDeclaration) {
@@ -45602,13 +46130,30 @@ var ts;
 (function (ts) {
     function transformES2015Module(context) {
         var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(261);
+        context.enableSubstitution(70);
+        var currentSourceFile;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
             if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
-                return ts.visitEachChild(node, visitor, context);
+                var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
+                if (externalHelpersModuleName) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologueDirectives(statements, node.statements);
+                    ts.append(statements, ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
             }
             return node;
         }
@@ -45624,6 +46169,32 @@ var ts;
         function visitExportAssignment(node) {
             return node.isExportEquals ? undefined : node;
         }
+        function onEmitNode(emitContext, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSourceFile = undefined;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(emitContext, node) {
+            node = previousOnSubstituteNode(emitContext, node);
+            if (ts.isIdentifier(node) && emitContext === 1) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+            }
+            return node;
+        }
     }
     ts.transformES2015Module = transformES2015Module;
 })(ts || (ts = {}));
@@ -45667,21 +46238,27 @@ var ts;
     }
     ts.getTransformers = getTransformers;
     function transformFiles(resolver, host, sourceFiles, transformers) {
+        var enabledSyntaxKindFeatures = new Array(298);
+        var lexicalEnvironmentDisabled = false;
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
         var lexicalEnvironmentVariableDeclarationsStack = [];
         var lexicalEnvironmentFunctionDeclarationsStack = [];
-        var enabledSyntaxKindFeatures = new Array(296);
         var lexicalEnvironmentStackOffset = 0;
-        var hoistedVariableDeclarations;
-        var hoistedFunctionDeclarations;
-        var lexicalEnvironmentDisabled;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
         var context = {
             getCompilerOptions: function () { return host.getCompilerOptions(); },
             getEmitResolver: function () { return resolver; },
             getEmitHost: function () { return host; },
-            hoistVariableDeclaration: hoistVariableDeclaration,
-            hoistFunctionDeclaration: hoistFunctionDeclaration,
             startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
             endLexicalEnvironment: endLexicalEnvironment,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
             onSubstituteNode: function (_emitContext, node) { return node; },
             enableSubstitution: enableSubstitution,
             isSubstitutionEnabled: isSubstitutionEnabled,
@@ -45708,7 +46285,7 @@ var ts;
         }
         function isSubstitutionEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 1) !== 0
-                && (ts.getEmitFlags(node) & 128) === 0;
+                && (ts.getEmitFlags(node) & 4) === 0;
         }
         function emitNodeWithSubstitution(emitContext, node, emitCallback) {
             if (node) {
@@ -45727,7 +46304,7 @@ var ts;
         }
         function isEmitNotificationEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 2) !== 0
-                || (ts.getEmitFlags(node) & 64) !== 0;
+                || (ts.getEmitFlags(node) & 2) !== 0;
         }
         function emitNodeWithNotification(emitContext, node, emitCallback) {
             if (node) {
@@ -45742,39 +46319,51 @@ var ts;
         function hoistVariableDeclaration(name) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
             var decl = ts.createVariableDeclaration(name);
-            if (!hoistedVariableDeclarations) {
-                hoistedVariableDeclarations = [decl];
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
             }
             else {
-                hoistedVariableDeclarations.push(decl);
+                lexicalEnvironmentVariableDeclarations.push(decl);
             }
         }
         function hoistFunctionDeclaration(func) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
-            if (!hoistedFunctionDeclarations) {
-                hoistedFunctionDeclarations = [func];
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
             }
             else {
-                hoistedFunctionDeclarations.push(func);
+                lexicalEnvironmentFunctionDeclarations.push(func);
             }
         }
         function startLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
-            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedVariableDeclarations;
-            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedFunctionDeclarations;
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
             lexicalEnvironmentStackOffset++;
-            hoistedVariableDeclarations = undefined;
-            hoistedFunctionDeclarations = undefined;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+        }
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
         }
         function endLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             var statements;
-            if (hoistedVariableDeclarations || hoistedFunctionDeclarations) {
-                if (hoistedFunctionDeclarations) {
-                    statements = hoistedFunctionDeclarations.slice();
+            if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = lexicalEnvironmentFunctionDeclarations.slice();
                 }
-                if (hoistedVariableDeclarations) {
-                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(hoistedVariableDeclarations));
+                if (lexicalEnvironmentVariableDeclarations) {
+                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                     if (!statements) {
                         statements = [statement];
                     }
@@ -45784,10 +46373,25 @@ var ts;
                 }
             }
             lexicalEnvironmentStackOffset--;
-            hoistedVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
-            hoistedFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+            }
             return statements;
         }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
     }
     ts.transformFiles = transformFiles;
     var _a;
@@ -46042,15 +46646,15 @@ var ts;
             }
         }
         function emitLines(nodes) {
-            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
-                var node = nodes_2[_i];
+            for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+                var node = nodes_4[_i];
                 emit(node);
             }
         }
         function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
             var currentWriterPos = writer.getTextPos();
-            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
-                var node = nodes_3[_i];
+            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                var node = nodes_5[_i];
                 if (!canEmitFn || canEmitFn(node)) {
                     if (currentWriterPos !== writer.getTextPos()) {
                         write(separator);
@@ -46065,7 +46669,7 @@ var ts;
         }
         function writeJsDocComments(declaration) {
             if (declaration) {
-                var jsDocComments = ts.getJsDocCommentsFromText(declaration, currentText);
+                var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
                 ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
                 ts.emitComments(currentText, currentLineMap, writer, jsDocComments, false, true, newLine, ts.writeCommentRange);
             }
@@ -46252,9 +46856,9 @@ var ts;
             var count = 0;
             while (true) {
                 count++;
-                var name_39 = baseName + "_" + count;
-                if (!(name_39 in currentIdentifiers)) {
-                    return name_39;
+                var name_40 = baseName + "_" + count;
+                if (!(name_40 in currentIdentifiers)) {
+                    return name_40;
                 }
             }
         }
@@ -46648,6 +47252,9 @@ var ts;
                         case 225:
                             diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                             break;
+                        case 228:
+                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                            break;
                         default:
                             ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                     }
@@ -46741,7 +47348,10 @@ var ts;
             var prevEnclosingDeclaration = enclosingDeclaration;
             enclosingDeclaration = node;
             emitTypeParameters(node.typeParameters);
-            emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), false);
+            var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
+            if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
+                emitHeritageClause(interfaceExtendsTypes, false);
+            }
             write(" {");
             writeLine();
             increaseIndent();
@@ -47459,12 +48069,12 @@ var ts;
                 var emitNode = node.emitNode;
                 var emitFlags = emitNode && emitNode.flags;
                 var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
-                if (node.kind !== 292
-                    && (emitFlags & 512) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 16) === 0
                     && pos >= 0) {
                     emitPos(ts.skipTrivia(currentSourceText, pos));
                 }
-                if (emitFlags & 2048) {
+                if (emitFlags & 64) {
                     disabled = true;
                     emitCallback(emitContext, node);
                     disabled = false;
@@ -47472,8 +48082,8 @@ var ts;
                 else {
                     emitCallback(emitContext, node);
                 }
-                if (node.kind !== 292
-                    && (emitFlags & 1024) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 32) === 0
                     && end >= 0) {
                     emitPos(end);
                 }
@@ -47487,13 +48097,13 @@ var ts;
             var emitFlags = emitNode && emitNode.flags;
             var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
             tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
-            if ((emitFlags & 4096) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 128) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             tokenPos = emitCallback(token, tokenPos);
             if (range)
                 tokenPos = range.end;
-            if ((emitFlags & 8192) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 256) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             return tokenPos;
@@ -47603,7 +48213,7 @@ var ts;
                 var _a = ts.getCommentRange(node), pos = _a.pos, end = _a.end;
                 var emitFlags = ts.getEmitFlags(node);
                 if ((pos < 0 && end < 0) || (pos === end)) {
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -47616,9 +48226,9 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.mark("preEmitNodeWithComment");
                     }
-                    var isEmittedNode = node.kind !== 292;
-                    var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-                    var skipTrailingComments = end < 0 || (emitFlags & 32768) !== 0;
+                    var isEmittedNode = node.kind !== 293;
+                    var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+                    var skipTrailingComments = end < 0 || (emitFlags & 1024) !== 0;
                     if (!skipLeadingComments) {
                         emitLeadingComments(pos, isEmittedNode);
                     }
@@ -47637,7 +48247,7 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.measure("commentTime", "preEmitNodeWithComment");
                     }
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -47666,15 +48276,15 @@ var ts;
             }
             var pos = detachedRange.pos, end = detachedRange.end;
             var emitFlags = ts.getEmitFlags(node);
-            var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-            var skipTrailingComments = disabled || end < 0 || (emitFlags & 32768) !== 0;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+            var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024) !== 0;
             if (!skipLeadingComments) {
                 emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
             }
             if (extendedDiagnostics) {
                 ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
             }
-            if (emitFlags & 65536 && !disabled) {
+            if (emitFlags & 2048 && !disabled) {
                 disabled = true;
                 emitCallback(node);
                 disabled = false;
@@ -47835,18 +48445,6 @@ var ts;
     function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
         var delimiters = createDelimiterMap();
         var brackets = createBracketsMap();
-        var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n    function __() { this.constructor = d; }\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
-        var assignHelper = "\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n        s = arguments[i];\n        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n            t[p] = s[p];\n    }\n    return t;\n};";
-        var restHelper = "\nvar __rest = (this && this.__rest) || function (s, e) {\n    var t = {};\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && !e.indexOf(p))\n        t[p] = s[p];\n    return t;\n};";
-        var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
-        var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
-        var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n    return function (target, key) { decorator(target, key, paramIndex); }\n};";
-        var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments)).next());\n    });\n};";
-        var generatorHelper = "\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n    return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n    function verb(n) { return function (v) { return step([n, v]); }; }\n    function step(op) {\n        if (f) throw new TypeError(\"Generator is already executing.\");\n        while (_) try {\n            if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n            if (y = 0, t) op = [0, t.value];\n            switch (op[0]) {\n                case 0: case 1: t = op; break;\n                case 4: _.label++; return { value: op[1], done: false };\n                case 5: _.label++; y = op[1]; op = [0]; continue;\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                default:\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                    if (t[2]) _.ops.pop();\n                    _.trys.pop(); continue;\n            }\n            op = body.call(thisArg, _);\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n    }\n};";
-        var exportStarHelper = "\nfunction __export(m) {\n    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}";
-        var umdHelper = "\n(function (dependencies, factory) {\n    if (typeof module === 'object' && typeof module.exports === 'object') {\n        var v = factory(require, exports); if (v !== undefined) module.exports = v;\n    }\n    else if (typeof define === 'function' && define.amd) {\n        define(dependencies, factory);\n    }\n})";
-        var superHelper = "\nconst _super = name => super[name];";
-        var advancedSuperHelper = "\nconst _super = (function (geti, seti) {\n    const cache = Object.create(null);\n    return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n})(name => super[name], (name, value) => super[name] = value);";
         var compilerOptions = host.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var moduleKind = ts.getEmitModuleKind(compilerOptions);
@@ -47868,12 +48466,7 @@ var ts;
         var currentSourceFile;
         var currentText;
         var currentFileIdentifiers;
-        var extendsEmitted;
-        var assignEmitted;
-        var restEmitted;
-        var decorateEmitted;
-        var paramEmitted;
-        var awaiterEmitted;
+        var bundledHelpers;
         var isOwnFileEmit;
         var emitSkipped = false;
         var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
@@ -47922,11 +48515,12 @@ var ts;
             nodeIdToGeneratedName = [];
             autoGeneratedIdToGeneratedName = [];
             generatedNameSet = ts.createMap();
+            bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
             isOwnFileEmit = !isBundledEmit;
             if (isBundledEmit && moduleKind) {
                 for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                     var sourceFile = sourceFiles_5[_a];
-                    emitEmitHelpers(sourceFile);
+                    emitHelpers(sourceFile, true);
                 }
             }
             ts.forEach(sourceFiles, printSourceFile);
@@ -47936,23 +48530,18 @@ var ts;
                 write("//# " + "sourceMappingURL" + "=" + sourceMappingURL);
             }
             if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
-                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false);
+                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false, sourceFiles);
             }
             if (sourceMapDataList) {
                 sourceMapDataList.push(sourceMap.getSourceMapData());
             }
-            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM);
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
             sourceMap.reset();
             comments.reset();
             writer.reset();
             tempFlags = 0;
             currentSourceFile = undefined;
             currentText = undefined;
-            extendsEmitted = false;
-            assignEmitted = false;
-            decorateEmitted = false;
-            paramEmitted = false;
-            awaiterEmitted = false;
             isOwnFileEmit = false;
         }
         function printSourceFile(node) {
@@ -48320,8 +48909,10 @@ var ts;
                     return emitJsxElement(node);
                 case 247:
                     return emitJsxSelfClosingElement(node);
-                case 293:
+                case 294:
                     return emitPartiallyEmittedExpression(node);
+                case 297:
+                    return writeLines(node.text);
             }
         }
         function emitNumericLiteral(node) {
@@ -48341,12 +48932,7 @@ var ts;
             }
         }
         function emitIdentifier(node) {
-            if (ts.getEmitFlags(node) & 16) {
-                writeLines(umdHelper);
-            }
-            else {
-                write(getTextOfNode(node, false));
-            }
+            write(getTextOfNode(node, false));
         }
         function emitQualifiedName(node) {
             emitEntityName(node.left);
@@ -48589,7 +49175,7 @@ var ts;
                 write("{}");
             }
             else {
-                var indentedFlag = ts.getEmitFlags(node) & 524288;
+                var indentedFlag = ts.getEmitFlags(node) & 32768;
                 if (indentedFlag) {
                     increaseIndent();
                 }
@@ -48604,7 +49190,7 @@ var ts;
         function emitPropertyAccessExpression(node) {
             var indentBeforeDot = false;
             var indentAfterDot = false;
-            if (!(ts.getEmitFlags(node) & 1048576)) {
+            if (!(ts.getEmitFlags(node) & 65536)) {
                 var dotRangeStart = node.expression.end;
                 var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
                 var dotToken = { kind: 22, pos: dotRangeStart, end: dotRangeEnd };
@@ -48788,7 +49374,7 @@ var ts;
             }
         }
         function emitBlockStatements(node) {
-            if (ts.getEmitFlags(node) & 32) {
+            if (ts.getEmitFlags(node) & 1) {
                 emitList(node, node.statements, 384);
             }
             else {
@@ -48964,11 +49550,11 @@ var ts;
             var body = node.body;
             if (body) {
                 if (ts.isBlock(body)) {
-                    var indentedFlag = ts.getEmitFlags(node) & 524288;
+                    var indentedFlag = ts.getEmitFlags(node) & 32768;
                     if (indentedFlag) {
                         increaseIndent();
                     }
-                    if (ts.getEmitFlags(node) & 4194304) {
+                    if (ts.getEmitFlags(node) & 262144) {
                         emitSignatureHead(node);
                         emitBlockFunctionBody(body);
                     }
@@ -49000,7 +49586,7 @@ var ts;
             emitWithPrefix(": ", node.type);
         }
         function shouldEmitBlockFunctionBodyOnSingleLine(body) {
-            if (ts.getEmitFlags(body) & 32) {
+            if (ts.getEmitFlags(body) & 1) {
                 return true;
             }
             if (body.multiLine) {
@@ -49055,7 +49641,7 @@ var ts;
             emitModifiers(node, node.modifiers);
             write("class");
             emitNodeWithPrefix(" ", node.name, emitIdentifierName);
-            var indentedFlag = ts.getEmitFlags(node) & 524288;
+            var indentedFlag = ts.getEmitFlags(node) & 32768;
             if (indentedFlag) {
                 increaseIndent();
             }
@@ -49314,7 +49900,7 @@ var ts;
             emit(node.name);
             write(": ");
             var initializer = node.initializer;
-            if ((ts.getEmitFlags(initializer) & 16384) === 0) {
+            if ((ts.getEmitFlags(initializer) & 512) === 0) {
                 var commentRange = ts.getCommentRange(initializer);
                 emitTrailingCommentsOfPosition(commentRange.pos);
             }
@@ -49368,71 +49954,31 @@ var ts;
             }
             return statements.length;
         }
-        function emitHelpers(node) {
-            var emitFlags = ts.getEmitFlags(node);
+        function emitHelpers(node, isBundle) {
+            var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
+            var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
+            var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
             var helpersEmitted = false;
-            if (emitFlags & 1) {
-                helpersEmitted = emitEmitHelpers(currentSourceFile);
-            }
-            if (emitFlags & 2) {
-                writeLines(exportStarHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 4) {
-                writeLines(superHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 8) {
-                writeLines(advancedSuperHelper);
-                helpersEmitted = true;
-            }
-            return helpersEmitted;
-        }
-        function emitEmitHelpers(node) {
-            if (compilerOptions.noEmitHelpers) {
-                return false;
-            }
-            if (compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                return false;
-            }
-            var helpersEmitted = false;
-            if ((languageVersion < 2) && (!extendsEmitted && node.flags & 1024)) {
-                writeLines(extendsHelper);
-                extendsEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 5 || currentSourceFile.scriptKind === 2 || currentSourceFile.scriptKind === 4) &&
-                compilerOptions.jsx !== 1 &&
-                !assignEmitted &&
-                node.flags & 16384) {
-                writeLines(assignHelper);
-                assignEmitted = true;
-            }
-            if (languageVersion < 5 && !restEmitted && node.flags & 32768) {
-                writeLines(restHelper);
-                restEmitted = true;
-            }
-            if (!decorateEmitted && node.flags & 2048) {
-                writeLines(decorateHelper);
-                if (compilerOptions.emitDecoratorMetadata) {
-                    writeLines(metadataHelper);
-                }
-                decorateEmitted = true;
-                helpersEmitted = true;
-            }
-            if (!paramEmitted && node.flags & 4096) {
-                writeLines(paramHelper);
-                paramEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 4) && (!awaiterEmitted && node.flags & 8192)) {
-                writeLines(awaiterHelper);
-                if (languageVersion < 2) {
-                    writeLines(generatorHelper);
+            var helpers = ts.getEmitHelpers(node);
+            if (helpers) {
+                for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
+                    var helper = _b[_a];
+                    if (!helper.scoped) {
+                        if (shouldSkip)
+                            continue;
+                        if (shouldBundle) {
+                            if (bundledHelpers[helper.name]) {
+                                continue;
+                            }
+                            bundledHelpers[helper.name] = true;
+                        }
+                    }
+                    else if (isBundle) {
+                        continue;
+                    }
+                    writeLines(helper.text);
+                    helpersEmitted = true;
                 }
-                awaiterEmitted = true;
-                helpersEmitted = true;
             }
             if (helpersEmitted) {
                 writeLine();
@@ -49440,9 +49986,10 @@ var ts;
             return helpersEmitted;
         }
         function writeLines(text) {
-            var lines = text.split(/\r\n|\r|\n/g);
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = guessIndentation(lines);
             for (var i = 0; i < lines.length; i++) {
-                var line = lines[i];
+                var line = indentation ? lines[i].slice(indentation) : lines[i];
                 if (line.length) {
                     if (i > 0) {
                         writeLine();
@@ -49451,6 +49998,21 @@ var ts;
                 }
             }
         }
+        function guessIndentation(lines) {
+            var indentation;
+            for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
+                var line = lines_1[_a];
+                for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
+                    if (!ts.isWhiteSpace(line.charCodeAt(i))) {
+                        if (indentation === undefined || i < indentation) {
+                            indentation = i;
+                            break;
+                        }
+                    }
+                }
+            }
+            return indentation;
+        }
         function emitShebang() {
             var shebang = ts.getShebang(currentText);
             if (shebang) {
@@ -49792,21 +50354,21 @@ var ts;
         }
         function makeTempVariableName(flags) {
             if (flags && !(tempFlags & flags)) {
-                var name_40 = flags === 268435456 ? "_i" : "_n";
-                if (isUniqueName(name_40)) {
+                var name_41 = flags === 268435456 ? "_i" : "_n";
+                if (isUniqueName(name_41)) {
                     tempFlags |= flags;
-                    return name_40;
+                    return name_41;
                 }
             }
             while (true) {
                 var count = tempFlags & 268435455;
                 tempFlags++;
                 if (count !== 8 && count !== 13) {
-                    var name_41 = count < 26
+                    var name_42 = count < 26
                         ? "_" + String.fromCharCode(97 + count)
                         : "_" + (count - 26);
-                    if (isUniqueName(name_41)) {
-                        return name_41;
+                    if (isUniqueName(name_42)) {
+                        return name_42;
                     }
                 }
             }
@@ -49927,7 +50489,6 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.2.0-dev.20161115";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -50143,10 +50704,10 @@ var ts;
         var resolutions = [];
         var cache = ts.createMap();
         for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
-            var name_42 = names_1[_i];
-            var result = name_42 in cache
-                ? cache[name_42]
-                : cache[name_42] = loader(name_42, containingFile);
+            var name_43 = names_1[_i];
+            var result = name_43 in cache
+                ? cache[name_43]
+                : cache[name_43] = loader(name_43, containingFile);
             resolutions.push(result);
         }
         return resolutions;
@@ -50200,7 +50761,8 @@ var ts;
             ts.forEach(rootNames, function (name) { return processRootFile(name, false); });
             var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
             if (typeReferences.length) {
-                var containingFilename = ts.combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
                 var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (var i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);
@@ -50680,8 +51242,8 @@ var ts;
                             }
                             break;
                     }
-                    for (var _b = 0, nodes_4 = nodes; _b < nodes_4.length; _b++) {
-                        var node = nodes_4[_b];
+                    for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
+                        var node = nodes_6[_b];
                         walk(node);
                     }
                 }
@@ -51714,7 +52276,7 @@ var ts;
             case 243:
             case 237:
                 return ts.ScriptElementKind.alias;
-            case 284:
+            case 285:
                 return ts.ScriptElementKind.typeElement;
             default:
                 return ts.ScriptElementKind.unknown;
@@ -51929,7 +52491,7 @@ var ts;
     ts.findChildOfKind = findChildOfKind;
     function findContainingList(node) {
         var syntaxList = ts.forEach(node.parent.getChildren(), function (c) {
-            if (c.kind === 291 && c.pos <= node.pos && c.end >= node.end) {
+            if (c.kind === 292 && c.pos <= node.pos && c.end >= node.end) {
                 return c;
             }
         });
@@ -52165,11 +52727,11 @@ var ts;
             }
         }
         if (node) {
-            if (node.jsDocComments) {
-                for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                    var jsDocComment = _a[_i];
-                    if (jsDocComment.tags) {
-                        for (var _b = 0, _c = jsDocComment.tags; _b < _c.length; _b++) {
+            if (node.jsDoc) {
+                for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                    var jsDoc = _a[_i];
+                    if (jsDoc.tags) {
+                        for (var _b = 0, _c = jsDoc.tags; _b < _c.length; _b++) {
                             var tag = _c[_b];
                             if (tag.pos <= position && position <= tag.end) {
                                 return tag;
@@ -52491,7 +53053,7 @@ var ts;
         if (isImportOrExportSpecifierName(location)) {
             return location.getText();
         }
-        else if (ts.isStringOrNumericLiteral(location.kind) &&
+        else if (ts.isStringOrNumericLiteral(location) &&
             location.parent.kind === 142) {
             return location.text;
         }
@@ -53574,16 +54136,16 @@ var ts;
                     pushClassification(tag.tagName.pos, tag.tagName.end - tag.tagName.pos, 18);
                     pos = tag.tagName.end;
                     switch (tag.kind) {
-                        case 280:
+                        case 281:
                             processJSDocParameterTag(tag);
                             break;
-                        case 283:
+                        case 284:
                             processJSDocTemplateTag(tag);
                             break;
-                        case 282:
+                        case 283:
                             processElement(tag.typeExpression);
                             break;
-                        case 281:
+                        case 282:
                             processElement(tag.typeExpression);
                             break;
                     }
@@ -53835,13 +54397,13 @@ var ts;
             function getJavaScriptCompletionEntries(sourceFile, position, uniqueNames) {
                 var entries = [];
                 var nameTable = ts.getNameTable(sourceFile);
-                for (var name_43 in nameTable) {
-                    if (nameTable[name_43] === position) {
+                for (var name_44 in nameTable) {
+                    if (nameTable[name_44] === position) {
                         continue;
                     }
-                    if (!uniqueNames[name_43]) {
-                        uniqueNames[name_43] = name_43;
-                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_43), compilerOptions.target, true);
+                    if (!uniqueNames[name_44]) {
+                        uniqueNames[name_44] = name_44;
+                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_44), compilerOptions.target, true);
                         if (displayName) {
                             var entry = {
                                 name: displayName,
@@ -54263,11 +54825,11 @@ var ts;
                     if (currentConfigPath) {
                         paths.push(currentConfigPath);
                         currentDir = ts.getDirectoryPath(currentConfigPath);
-                        var parent_14 = ts.getDirectoryPath(currentDir);
-                        if (currentDir === parent_14) {
+                        var parent_13 = ts.getDirectoryPath(currentDir);
+                        if (currentDir === parent_13) {
                             break;
                         }
-                        currentDir = parent_14;
+                        currentDir = parent_13;
                     }
                     else {
                         break;
@@ -54344,10 +54906,10 @@ var ts;
         function getCompletionEntryDetails(typeChecker, log, compilerOptions, sourceFile, position, entryName) {
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_2 = completionData.location;
-                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_2) === entryName ? s : undefined; });
+                var symbols = completionData.symbols, location_3 = completionData.location;
+                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_3) === entryName ? s : undefined; });
                 if (symbol) {
-                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_2, location_2, 7), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
+                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_3, location_3, 7), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
                     return {
                         name: entryName,
                         kindModifiers: ts.SymbolDisplay.getSymbolModifiers(symbol),
@@ -54373,8 +54935,8 @@ var ts;
         function getCompletionEntrySymbol(typeChecker, log, compilerOptions, sourceFile, position, entryName) {
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_3 = completionData.location;
-                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_3) === entryName ? s : undefined; });
+                var symbols = completionData.symbols, location_4 = completionData.location;
+                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_4) === entryName ? s : undefined; });
             }
             return undefined;
         }
@@ -54399,9 +54961,9 @@ var ts;
                         isJsDocTagName = true;
                     }
                     switch (tag.kind) {
-                        case 282:
-                        case 280:
+                        case 283:
                         case 281:
+                        case 282:
                             var tagWithExpression = tag;
                             if (tagWithExpression.typeExpression) {
                                 insideJsDocTagExpression = tagWithExpression.typeExpression.pos < position && position < tagWithExpression.typeExpression.end;
@@ -54436,13 +54998,13 @@ var ts;
                     log("Returning an empty list because completion was requested in an invalid position.");
                     return undefined;
                 }
-                var parent_15 = contextToken.parent, kind = contextToken.kind;
+                var parent_14 = contextToken.parent, kind = contextToken.kind;
                 if (kind === 22) {
-                    if (parent_15.kind === 177) {
+                    if (parent_14.kind === 177) {
                         node = contextToken.parent.expression;
                         isRightOfDot = true;
                     }
-                    else if (parent_15.kind === 141) {
+                    else if (parent_14.kind === 141) {
                         node = contextToken.parent.left;
                         isRightOfDot = true;
                     }
@@ -54739,9 +55301,9 @@ var ts;
                     switch (contextToken.kind) {
                         case 16:
                         case 25:
-                            var parent_16 = contextToken.parent;
-                            if (parent_16 && (parent_16.kind === 176 || parent_16.kind === 172)) {
-                                return parent_16;
+                            var parent_15 = contextToken.parent;
+                            if (parent_15 && (parent_15.kind === 176 || parent_15.kind === 172)) {
+                                return parent_15;
                             }
                             break;
                     }
@@ -54764,34 +55326,34 @@ var ts;
             }
             function tryGetContainingJsxElement(contextToken) {
                 if (contextToken) {
-                    var parent_17 = contextToken.parent;
+                    var parent_16 = contextToken.parent;
                     switch (contextToken.kind) {
                         case 27:
                         case 40:
                         case 70:
                         case 250:
                         case 251:
-                            if (parent_17 && (parent_17.kind === 247 || parent_17.kind === 248)) {
-                                return parent_17;
+                            if (parent_16 && (parent_16.kind === 247 || parent_16.kind === 248)) {
+                                return parent_16;
                             }
-                            else if (parent_17.kind === 250) {
-                                return parent_17.parent;
+                            else if (parent_16.kind === 250) {
+                                return parent_16.parent;
                             }
                             break;
                         case 9:
-                            if (parent_17 && ((parent_17.kind === 250) || (parent_17.kind === 251))) {
-                                return parent_17.parent;
+                            if (parent_16 && ((parent_16.kind === 250) || (parent_16.kind === 251))) {
+                                return parent_16.parent;
                             }
                             break;
                         case 17:
-                            if (parent_17 &&
-                                parent_17.kind === 252 &&
-                                parent_17.parent &&
-                                (parent_17.parent.kind === 250)) {
-                                return parent_17.parent.parent;
+                            if (parent_16 &&
+                                parent_16.kind === 252 &&
+                                parent_16.parent &&
+                                (parent_16.parent.kind === 250)) {
+                                return parent_16.parent.parent;
                             }
-                            if (parent_17 && parent_17.kind === 251) {
-                                return parent_17.parent;
+                            if (parent_16 && parent_16.kind === 251) {
+                                return parent_16.parent;
                             }
                             break;
                     }
@@ -54914,8 +55476,8 @@ var ts;
                     if (element.getStart() <= position && position <= element.getEnd()) {
                         continue;
                     }
-                    var name_44 = element.propertyName || element.name;
-                    existingImportsOrExports[name_44.text] = true;
+                    var name_45 = element.propertyName || element.name;
+                    existingImportsOrExports[name_45.text] = true;
                 }
                 if (!ts.someProperties(existingImportsOrExports)) {
                     return ts.filter(exportsOfModule, function (e) { return e.name !== "default"; });
@@ -55212,17 +55774,17 @@ var ts;
                 function getThrowStatementOwner(throwStatement) {
                     var child = throwStatement;
                     while (child.parent) {
-                        var parent_18 = child.parent;
-                        if (ts.isFunctionBlock(parent_18) || parent_18.kind === 261) {
-                            return parent_18;
+                        var parent_17 = child.parent;
+                        if (ts.isFunctionBlock(parent_17) || parent_17.kind === 261) {
+                            return parent_17;
                         }
-                        if (parent_18.kind === 221) {
-                            var tryStatement = parent_18;
+                        if (parent_17.kind === 221) {
+                            var tryStatement = parent_17;
                             if (tryStatement.tryBlock === child && tryStatement.catchClause) {
                                 return child;
                             }
                         }
-                        child = parent_18;
+                        child = parent_17;
                     }
                     return undefined;
                 }
@@ -56057,24 +56619,24 @@ var ts;
                     }
                     var containingTypeReference = getContainingTypeReference(refNode);
                     if (containingTypeReference) {
-                        var parent_19 = containingTypeReference.parent;
-                        if (ts.isVariableLike(parent_19) && parent_19.type === containingTypeReference && parent_19.initializer && isImplementationExpression(parent_19.initializer)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.initializer));
+                        var parent_18 = containingTypeReference.parent;
+                        if (ts.isVariableLike(parent_18) && parent_18.type === containingTypeReference && parent_18.initializer && isImplementationExpression(parent_18.initializer)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.initializer));
                         }
-                        else if (ts.isFunctionLike(parent_19) && parent_19.type === containingTypeReference && parent_19.body) {
-                            if (parent_19.body.kind === 204) {
-                                ts.forEachReturnStatement(parent_19.body, function (returnStatement) {
+                        else if (ts.isFunctionLike(parent_18) && parent_18.type === containingTypeReference && parent_18.body) {
+                            if (parent_18.body.kind === 204) {
+                                ts.forEachReturnStatement(parent_18.body, function (returnStatement) {
                                     if (returnStatement.expression && isImplementationExpression(returnStatement.expression)) {
                                         maybeAdd(getReferenceEntryFromNode(returnStatement.expression));
                                     }
                                 });
                             }
-                            else if (isImplementationExpression(parent_19.body)) {
-                                maybeAdd(getReferenceEntryFromNode(parent_19.body));
+                            else if (isImplementationExpression(parent_18.body)) {
+                                maybeAdd(getReferenceEntryFromNode(parent_18.body));
                             }
                         }
-                        else if (ts.isAssertionExpression(parent_19) && isImplementationExpression(parent_19.expression)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.expression));
+                        else if (ts.isAssertionExpression(parent_18) && isImplementationExpression(parent_18.expression)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.expression));
                         }
                     }
                 }
@@ -56450,9 +57012,9 @@ var ts;
                                 return undefined;
                             }
                         }
-                        var result_3 = [];
-                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_3, ts.createMap());
-                        return ts.forEach(result_3, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+                        var result_4 = [];
+                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_4, ts.createMap());
+                        return ts.forEach(result_4, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
                     }
                     return undefined;
                 });
@@ -56460,7 +57022,7 @@ var ts;
             function getNameFromObjectLiteralElement(node) {
                 if (node.name.kind === 142) {
                     var nameExpression = node.name.expression;
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     return undefined;
@@ -56472,20 +57034,20 @@ var ts;
                 var contextualType = typeChecker.getContextualType(objectLiteral);
                 var name = getNameFromObjectLiteralElement(node);
                 if (name && contextualType) {
-                    var result_4 = [];
+                    var result_5 = [];
                     var symbol_2 = contextualType.getProperty(name);
                     if (symbol_2) {
-                        result_4.push(symbol_2);
+                        result_5.push(symbol_2);
                     }
                     if (contextualType.flags & 65536) {
                         ts.forEach(contextualType.types, function (t) {
                             var symbol = t.getProperty(name);
                             if (symbol) {
-                                result_4.push(symbol);
+                                result_5.push(symbol);
                             }
                         });
                     }
-                    return result_4;
+                    return result_5;
                 }
                 return undefined;
             }
@@ -56713,13 +57275,13 @@ var ts;
                 return undefined;
             }
             if (type.flags & 65536 && !(type.flags & 16)) {
-                var result_5 = [];
+                var result_6 = [];
                 ts.forEach(type.types, function (t) {
                     if (t.symbol) {
-                        ts.addRange(result_5, getDefinitionFromSymbol(typeChecker, t.symbol, node));
+                        ts.addRange(result_6, getDefinitionFromSymbol(typeChecker, t.symbol, node));
                     }
                 });
-                return result_5;
+                return result_6;
             }
             if (!type.symbol) {
                 return undefined;
@@ -56911,7 +57473,7 @@ var ts;
         function getJsDocCommentsFromDeclarations(declarations) {
             var documentationComment = [];
             forEachUnique(declarations, function (declaration) {
-                var comments = ts.getJSDocComments(declaration, true);
+                var comments = ts.getCommentsFromJSDoc(declaration);
                 if (!comments) {
                     return;
                 }
@@ -57050,10 +57612,10 @@ var ts;
                     return;
                 }
                 var nameToDeclarations = sourceFile.getNamedDeclarations();
-                for (var name_45 in nameToDeclarations) {
-                    var declarations = nameToDeclarations[name_45];
+                for (var name_46 in nameToDeclarations) {
+                    var declarations = nameToDeclarations[name_46];
                     if (declarations) {
-                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_45);
+                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_46);
                         if (!matches) {
                             continue;
                         }
@@ -57064,14 +57626,14 @@ var ts;
                                 if (!containers) {
                                     return undefined;
                                 }
-                                matches = patternMatcher.getMatches(containers, name_45);
+                                matches = patternMatcher.getMatches(containers, name_46);
                                 if (!matches) {
                                     continue;
                                 }
                             }
                             var fileName = sourceFile.fileName;
                             var matchKind = bestMatchKind(matches);
-                            rawItems.push({ name: name_45, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
+                            rawItems.push({ name: name_46, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
                         }
                     }
                 }
@@ -57324,9 +57886,9 @@ var ts;
                 case 174:
                 case 223:
                     var decl = node;
-                    var name_46 = decl.name;
-                    if (ts.isBindingPattern(name_46)) {
-                        addChildrenRecursively(name_46);
+                    var name_47 = decl.name;
+                    if (ts.isBindingPattern(name_47)) {
+                        addChildrenRecursively(name_47);
                     }
                     else if (decl.initializer && isFunctionOrClassExpression(decl.initializer)) {
                         addChildrenRecursively(decl.initializer);
@@ -57372,9 +57934,9 @@ var ts;
                     addLeafNode(node);
                     break;
                 default:
-                    ts.forEach(node.jsDocComments, function (jsDocComment) {
-                        ts.forEach(jsDocComment.tags, function (tag) {
-                            if (tag.kind === 284) {
+                    ts.forEach(node.jsDoc, function (jsDoc) {
+                        ts.forEach(jsDoc.tags, function (tag) {
+                            if (tag.kind === 285) {
                                 addLeafNode(tag);
                             }
                         });
@@ -57490,7 +58052,7 @@ var ts;
                 case 185:
                 case 197:
                     return getFunctionOrClassName(node);
-                case 284:
+                case 285:
                     return getJSDocTypedefTagName(node);
                 default:
                     return undefined;
@@ -57530,7 +58092,7 @@ var ts;
                     return "()";
                 case 155:
                     return "[]";
-                case 284:
+                case 285:
                     return getJSDocTypedefTagName(node);
                 default:
                     return "<unknown>";
@@ -57577,7 +58139,7 @@ var ts;
                     case 230:
                     case 261:
                     case 228:
-                    case 284:
+                    case 285:
                         return true;
                     case 150:
                     case 149:
@@ -57790,24 +58352,24 @@ var ts;
                 switch (n.kind) {
                     case 204:
                         if (!ts.isFunctionBlock(n)) {
-                            var parent_20 = n.parent;
+                            var parent_19 = n.parent;
                             var openBrace = ts.findChildOfKind(n, 16, sourceFile);
                             var closeBrace = ts.findChildOfKind(n, 17, sourceFile);
-                            if (parent_20.kind === 209 ||
-                                parent_20.kind === 212 ||
-                                parent_20.kind === 213 ||
-                                parent_20.kind === 211 ||
-                                parent_20.kind === 208 ||
-                                parent_20.kind === 210 ||
-                                parent_20.kind === 217 ||
-                                parent_20.kind === 256) {
-                                addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                            if (parent_19.kind === 209 ||
+                                parent_19.kind === 212 ||
+                                parent_19.kind === 213 ||
+                                parent_19.kind === 211 ||
+                                parent_19.kind === 208 ||
+                                parent_19.kind === 210 ||
+                                parent_19.kind === 217 ||
+                                parent_19.kind === 256) {
+                                addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                 break;
                             }
-                            if (parent_20.kind === 221) {
-                                var tryStatement = parent_20;
+                            if (parent_19.kind === 221) {
+                                var tryStatement = parent_19;
                                 if (tryStatement.tryBlock === n) {
-                                    addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                                    addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                     break;
                                 }
                                 else if (tryStatement.finallyBlock === n) {
@@ -59421,8 +59983,8 @@ var ts;
                 if (declaration.kind !== 223 && declaration.kind !== 225) {
                     return false;
                 }
-                for (var parent_21 = declaration.parent; !ts.isFunctionBlock(parent_21); parent_21 = parent_21.parent) {
-                    if (parent_21.kind === 261 || parent_21.kind === 231) {
+                for (var parent_20 = declaration.parent; !ts.isFunctionBlock(parent_20); parent_20 = parent_20.parent) {
+                    if (parent_20.kind === 261 || parent_20.kind === 231) {
                         return false;
                     }
                 }
@@ -59909,7 +60471,7 @@ var ts;
             function RuleOperationContext() {
                 var funcs = [];
                 for (var _i = 0; _i < arguments.length; _i++) {
-                    funcs[_i - 0] = arguments[_i];
+                    funcs[_i] = arguments[_i];
                 }
                 this.customContextChecks = funcs;
             }
@@ -60116,9 +60678,9 @@ var ts;
             }
             Rules.prototype.getRuleName = function (rule) {
                 var o = this;
-                for (var name_47 in o) {
-                    if (o[name_47] === rule) {
-                        return name_47;
+                for (var name_48 in o) {
+                    if (o[name_48] === rule) {
+                        return name_48;
                     }
                 }
                 throw new Error("Unknown rule");
@@ -61297,11 +61859,23 @@ var ts;
                 else {
                     var tokenStart = sourceFile.getLineAndCharacterOfPosition(pos);
                     var startLinePosition = ts.getStartPositionOfLine(tokenStart.line, sourceFile);
-                    if (indentation !== tokenStart.character || indentationIsDifferent(indentationString, startLinePosition)) {
+                    if (indentation !== characterToColumn(startLinePosition, tokenStart.character) || indentationIsDifferent(indentationString, startLinePosition)) {
                         recordReplace(startLinePosition, tokenStart.character, indentationString);
                     }
                 }
             }
+            function characterToColumn(startLinePosition, characterInLine) {
+                var column = 0;
+                for (var i = 0; i < characterInLine; i++) {
+                    if (sourceFile.text.charCodeAt(startLinePosition + i) === 9) {
+                        column += options.tabSize - column % options.tabSize;
+                    }
+                    else {
+                        column++;
+                    }
+                }
+                return column;
+            }
             function indentationIsDifferent(indentationString, startLinePosition) {
                 return indentationString !== sourceFile.text.substr(startLinePosition, indentationString.length);
             }
@@ -62007,6 +62581,579 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    var codefix;
+    (function (codefix) {
+        var ModuleSpecifierComparison;
+        (function (ModuleSpecifierComparison) {
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Better"] = 0] = "Better";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Equal"] = 1] = "Equal";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Worse"] = 2] = "Worse";
+        })(ModuleSpecifierComparison || (ModuleSpecifierComparison = {}));
+        var ImportCodeActionMap = (function () {
+            function ImportCodeActionMap() {
+                this.symbolIdToActionMap = ts.createMap();
+            }
+            ImportCodeActionMap.prototype.addAction = function (symbolId, newAction) {
+                if (!newAction) {
+                    return;
+                }
+                if (!this.symbolIdToActionMap[symbolId]) {
+                    this.symbolIdToActionMap[symbolId] = [newAction];
+                    return;
+                }
+                if (newAction.kind === "CodeChange") {
+                    this.symbolIdToActionMap[symbolId].push(newAction);
+                    return;
+                }
+                var updatedNewImports = [];
+                for (var _i = 0, _a = this.symbolIdToActionMap[symbolId]; _i < _a.length; _i++) {
+                    var existingAction = _a[_i];
+                    if (existingAction.kind === "CodeChange") {
+                        updatedNewImports.push(existingAction);
+                        continue;
+                    }
+                    switch (this.compareModuleSpecifiers(existingAction.moduleSpecifier, newAction.moduleSpecifier)) {
+                        case ModuleSpecifierComparison.Better:
+                            if (newAction.kind === "NewImport") {
+                                return;
+                            }
+                        case ModuleSpecifierComparison.Equal:
+                            updatedNewImports.push(existingAction);
+                            break;
+                        case ModuleSpecifierComparison.Worse:
+                            continue;
+                    }
+                }
+                updatedNewImports.push(newAction);
+                this.symbolIdToActionMap[symbolId] = updatedNewImports;
+            };
+            ImportCodeActionMap.prototype.addActions = function (symbolId, newActions) {
+                for (var _i = 0, newActions_1 = newActions; _i < newActions_1.length; _i++) {
+                    var newAction = newActions_1[_i];
+                    this.addAction(symbolId, newAction);
+                }
+            };
+            ImportCodeActionMap.prototype.getAllActions = function () {
+                var result = [];
+                for (var symbolId in this.symbolIdToActionMap) {
+                    result = ts.concatenate(result, this.symbolIdToActionMap[symbolId]);
+                }
+                return result;
+            };
+            ImportCodeActionMap.prototype.compareModuleSpecifiers = function (moduleSpecifier1, moduleSpecifier2) {
+                if (moduleSpecifier1 === moduleSpecifier2) {
+                    return ModuleSpecifierComparison.Equal;
+                }
+                if (moduleSpecifier2.indexOf(moduleSpecifier1) === 0) {
+                    return ModuleSpecifierComparison.Better;
+                }
+                if (moduleSpecifier1.indexOf(moduleSpecifier2) === 0) {
+                    return ModuleSpecifierComparison.Worse;
+                }
+                if (ts.isExternalModuleNameRelative(moduleSpecifier1) && ts.isExternalModuleNameRelative(moduleSpecifier2)) {
+                    var regex = new RegExp(ts.directorySeparator, "g");
+                    var moduleSpecifier1LevelCount = (moduleSpecifier1.match(regex) || []).length;
+                    var moduleSpecifier2LevelCount = (moduleSpecifier2.match(regex) || []).length;
+                    return moduleSpecifier1LevelCount < moduleSpecifier2LevelCount
+                        ? ModuleSpecifierComparison.Better
+                        : moduleSpecifier1LevelCount === moduleSpecifier2LevelCount
+                            ? ModuleSpecifierComparison.Equal
+                            : ModuleSpecifierComparison.Worse;
+                }
+                return ModuleSpecifierComparison.Equal;
+            };
+            return ImportCodeActionMap;
+        }());
+        codefix.registerCodeFix({
+            errorCodes: [ts.Diagnostics.Cannot_find_name_0.code],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var checker = context.program.getTypeChecker();
+                var allSourceFiles = context.program.getSourceFiles();
+                var useCaseSensitiveFileNames = context.host.useCaseSensitiveFileNames ? context.host.useCaseSensitiveFileNames() : false;
+                var token = ts.getTokenAtPosition(sourceFile, context.span.start);
+                var name = token.getText();
+                var symbolIdActionMap = new ImportCodeActionMap();
+                var cachedImportDeclarations = ts.createMap();
+                var cachedNewImportInsertPosition;
+                var allPotentialModules = checker.getAmbientModules();
+                for (var _i = 0, allSourceFiles_1 = allSourceFiles; _i < allSourceFiles_1.length; _i++) {
+                    var otherSourceFile = allSourceFiles_1[_i];
+                    if (otherSourceFile !== sourceFile && ts.isExternalOrCommonJsModule(otherSourceFile)) {
+                        allPotentialModules.push(otherSourceFile.symbol);
+                    }
+                }
+                var currentTokenMeaning = ts.getMeaningFromLocation(token);
+                for (var _a = 0, allPotentialModules_1 = allPotentialModules; _a < allPotentialModules_1.length; _a++) {
+                    var moduleSymbol = allPotentialModules_1[_a];
+                    context.cancellationToken.throwIfCancellationRequested();
+                    var defaultExport = checker.tryGetMemberInModuleExports("default", moduleSymbol);
+                    if (defaultExport) {
+                        var localSymbol = ts.getLocalSymbolForExportDefault(defaultExport);
+                        if (localSymbol && localSymbol.name === name && checkSymbolHasMeaning(localSymbol, currentTokenMeaning)) {
+                            var symbolId = getUniqueSymbolId(localSymbol);
+                            symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol, true));
+                        }
+                    }
+                    var exportSymbolWithIdenticalName = checker.tryGetMemberInModuleExports(name, moduleSymbol);
+                    if (exportSymbolWithIdenticalName && checkSymbolHasMeaning(exportSymbolWithIdenticalName, currentTokenMeaning)) {
+                        var symbolId = getUniqueSymbolId(exportSymbolWithIdenticalName);
+                        symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol));
+                    }
+                }
+                return symbolIdActionMap.getAllActions();
+                function getImportDeclarations(moduleSymbol) {
+                    var moduleSymbolId = getUniqueSymbolId(moduleSymbol);
+                    if (cachedImportDeclarations[moduleSymbolId]) {
+                        return cachedImportDeclarations[moduleSymbolId];
+                    }
+                    var existingDeclarations = [];
+                    for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                        var importModuleSpecifier = _a[_i];
+                        var importSymbol = checker.getSymbolAtLocation(importModuleSpecifier);
+                        if (importSymbol === moduleSymbol) {
+                            existingDeclarations.push(getImportDeclaration(importModuleSpecifier));
+                        }
+                    }
+                    cachedImportDeclarations[moduleSymbolId] = existingDeclarations;
+                    return existingDeclarations;
+                    function getImportDeclaration(moduleSpecifier) {
+                        var node = moduleSpecifier;
+                        while (node) {
+                            if (node.kind === 235) {
+                                return node;
+                            }
+                            if (node.kind === 234) {
+                                return node;
+                            }
+                            node = node.parent;
+                        }
+                        return undefined;
+                    }
+                }
+                function getUniqueSymbolId(symbol) {
+                    if (symbol.flags & 8388608) {
+                        return ts.getSymbolId(checker.getAliasedSymbol(symbol));
+                    }
+                    return ts.getSymbolId(symbol);
+                }
+                function checkSymbolHasMeaning(symbol, meaning) {
+                    var declarations = symbol.getDeclarations();
+                    return declarations ? ts.some(symbol.declarations, function (decl) { return !!(ts.getMeaningFromDeclaration(decl) & meaning); }) : false;
+                }
+                function getCodeActionForImport(moduleSymbol, isDefault) {
+                    var existingDeclarations = getImportDeclarations(moduleSymbol);
+                    if (existingDeclarations.length > 0) {
+                        return getCodeActionsForExistingImport(existingDeclarations);
+                    }
+                    else {
+                        return [getCodeActionForNewImport()];
+                    }
+                    function getCodeActionsForExistingImport(declarations) {
+                        var actions = [];
+                        var namespaceImportDeclaration;
+                        var namedImportDeclaration;
+                        var existingModuleSpecifier;
+                        for (var _i = 0, declarations_11 = declarations; _i < declarations_11.length; _i++) {
+                            var declaration = declarations_11[_i];
+                            if (declaration.kind === 235) {
+                                var namedBindings = declaration.importClause && declaration.importClause.namedBindings;
+                                if (namedBindings && namedBindings.kind === 237) {
+                                    namespaceImportDeclaration = declaration;
+                                }
+                                else {
+                                    namedImportDeclaration = declaration;
+                                }
+                                existingModuleSpecifier = declaration.moduleSpecifier.getText();
+                            }
+                            else {
+                                namespaceImportDeclaration = declaration;
+                                existingModuleSpecifier = getModuleSpecifierFromImportEqualsDeclaration(declaration);
+                            }
+                        }
+                        if (namespaceImportDeclaration) {
+                            actions.push(getCodeActionForNamespaceImport(namespaceImportDeclaration));
+                        }
+                        if (namedImportDeclaration && namedImportDeclaration.importClause &&
+                            (namedImportDeclaration.importClause.name || namedImportDeclaration.importClause.namedBindings)) {
+                            var textChange = getTextChangeForImportClause(namedImportDeclaration.importClause);
+                            var moduleSpecifierWithoutQuotes = ts.stripQuotes(namedImportDeclaration.moduleSpecifier.getText());
+                            actions.push(createCodeAction(ts.Diagnostics.Add_0_to_existing_import_declaration_from_1, [name, moduleSpecifierWithoutQuotes], textChange.newText, textChange.span, sourceFile.fileName, "InsertingIntoExistingImport", moduleSpecifierWithoutQuotes));
+                        }
+                        else {
+                            actions.push(getCodeActionForNewImport(existingModuleSpecifier));
+                        }
+                        return actions;
+                        function getModuleSpecifierFromImportEqualsDeclaration(declaration) {
+                            if (declaration.moduleReference && declaration.moduleReference.kind === 245) {
+                                return declaration.moduleReference.expression.getText();
+                            }
+                            return declaration.moduleReference.getText();
+                        }
+                        function getTextChangeForImportClause(importClause) {
+                            var newImportText = isDefault ? "default as " + name : name;
+                            var importList = importClause.namedBindings;
+                            if (!importList && importClause.name) {
+                                var start = importClause.name.getEnd();
+                                return {
+                                    newText: ", { " + newImportText + " }",
+                                    span: { start: start, length: 0 }
+                                };
+                            }
+                            if (importList.elements.length === 0) {
+                                var start = importList.getStart();
+                                return {
+                                    newText: "{ " + newImportText + " }",
+                                    span: { start: start, length: importList.getEnd() - start }
+                                };
+                            }
+                            var insertPoint = importList.elements[importList.elements.length - 1].getEnd();
+                            var startLine = ts.getLineOfLocalPosition(sourceFile, importList.getStart());
+                            var endLine = ts.getLineOfLocalPosition(sourceFile, importList.getEnd());
+                            var oneImportPerLine = endLine - startLine > importList.elements.length;
+                            return {
+                                newText: "," + (oneImportPerLine ? context.newLineCharacter : " ") + newImportText,
+                                span: { start: insertPoint, length: 0 }
+                            };
+                        }
+                        function getCodeActionForNamespaceImport(declaration) {
+                            var namespacePrefix;
+                            if (declaration.kind === 235) {
+                                namespacePrefix = declaration.importClause.namedBindings.name.getText();
+                            }
+                            else {
+                                namespacePrefix = declaration.name.getText();
+                            }
+                            namespacePrefix = ts.stripQuotes(namespacePrefix);
+                            return createCodeAction(ts.Diagnostics.Change_0_to_1, [name, namespacePrefix + "." + name], namespacePrefix + ".", { start: token.getStart(), length: 0 }, sourceFile.fileName, "CodeChange");
+                        }
+                    }
+                    function getCodeActionForNewImport(moduleSpecifier) {
+                        if (!cachedNewImportInsertPosition) {
+                            var lastModuleSpecifierEnd = -1;
+                            for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                                var moduleSpecifier_1 = _a[_i];
+                                var end = moduleSpecifier_1.getEnd();
+                                if (!lastModuleSpecifierEnd || end > lastModuleSpecifierEnd) {
+                                    lastModuleSpecifierEnd = end;
+                                }
+                            }
+                            cachedNewImportInsertPosition = lastModuleSpecifierEnd > 0 ? sourceFile.getLineEndOfPosition(lastModuleSpecifierEnd) : sourceFile.getStart();
+                        }
+                        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+                        var moduleSpecifierWithoutQuotes = ts.stripQuotes(moduleSpecifier || getModuleSpecifierForNewImport());
+                        var importStatementText = isDefault
+                            ? "import " + name + " from \"" + moduleSpecifierWithoutQuotes + "\""
+                            : "import { " + name + " } from \"" + moduleSpecifierWithoutQuotes + "\"";
+                        var newText = cachedNewImportInsertPosition === sourceFile.getStart()
+                            ? importStatementText + ";" + context.newLineCharacter + context.newLineCharacter
+                            : "" + context.newLineCharacter + importStatementText + ";";
+                        return createCodeAction(ts.Diagnostics.Import_0_from_1, [name, "\"" + moduleSpecifierWithoutQuotes + "\""], newText, { start: cachedNewImportInsertPosition, length: 0 }, sourceFile.fileName, "NewImport", moduleSpecifierWithoutQuotes);
+                        function getModuleSpecifierForNewImport() {
+                            var fileName = sourceFile.path;
+                            var moduleFileName = moduleSymbol.valueDeclaration.getSourceFile().path;
+                            var sourceDirectory = ts.getDirectoryPath(fileName);
+                            var options = context.program.getCompilerOptions();
+                            return tryGetModuleNameFromAmbientModule() ||
+                                tryGetModuleNameFromBaseUrl() ||
+                                tryGetModuleNameFromRootDirs() ||
+                                tryGetModuleNameFromTypeRoots() ||
+                                tryGetModuleNameAsNodeModule() ||
+                                ts.removeFileExtension(getRelativePath(moduleFileName, sourceDirectory));
+                            function tryGetModuleNameFromAmbientModule() {
+                                if (moduleSymbol.valueDeclaration.kind !== 261) {
+                                    return moduleSymbol.name;
+                                }
+                            }
+                            function tryGetModuleNameFromBaseUrl() {
+                                if (!options.baseUrl) {
+                                    return undefined;
+                                }
+                                var normalizedBaseUrl = ts.toPath(options.baseUrl, ts.getDirectoryPath(options.baseUrl), getCanonicalFileName);
+                                var relativeName = tryRemoveParentDirectoryName(moduleFileName, normalizedBaseUrl);
+                                if (!relativeName) {
+                                    return undefined;
+                                }
+                                relativeName = removeExtensionAndIndexPostFix(relativeName);
+                                if (options.paths) {
+                                    for (var key in options.paths) {
+                                        for (var _i = 0, _a = options.paths[key]; _i < _a.length; _i++) {
+                                            var pattern = _a[_i];
+                                            var indexOfStar = pattern.indexOf("*");
+                                            if (indexOfStar === 0 && pattern.length === 1) {
+                                                continue;
+                                            }
+                                            else if (indexOfStar !== -1) {
+                                                var prefix = pattern.substr(0, indexOfStar);
+                                                var suffix = pattern.substr(indexOfStar + 1);
+                                                if (relativeName.length >= prefix.length + suffix.length &&
+                                                    ts.startsWith(relativeName, prefix) &&
+                                                    ts.endsWith(relativeName, suffix)) {
+                                                    var matchedStar = relativeName.substr(prefix.length, relativeName.length - suffix.length);
+                                                    return key.replace("\*", matchedStar);
+                                                }
+                                            }
+                                            else if (pattern === relativeName) {
+                                                return key;
+                                            }
+                                        }
+                                    }
+                                }
+                                return relativeName;
+                            }
+                            function tryGetModuleNameFromRootDirs() {
+                                if (options.rootDirs) {
+                                    var normalizedRootDirs = ts.map(options.rootDirs, function (rootDir) { return ts.toPath(rootDir, undefined, getCanonicalFileName); });
+                                    var normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, normalizedRootDirs);
+                                    var normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, normalizedRootDirs);
+                                    if (normalizedTargetPath !== undefined) {
+                                        var relativePath = normalizedSourcePath !== undefined ? getRelativePath(normalizedTargetPath, normalizedSourcePath) : normalizedTargetPath;
+                                        return ts.removeFileExtension(relativePath);
+                                    }
+                                }
+                                return undefined;
+                            }
+                            function tryGetModuleNameFromTypeRoots() {
+                                var typeRoots = ts.getEffectiveTypeRoots(options, context.host);
+                                if (typeRoots) {
+                                    var normalizedTypeRoots = ts.map(typeRoots, function (typeRoot) { return ts.toPath(typeRoot, undefined, getCanonicalFileName); });
+                                    for (var _i = 0, normalizedTypeRoots_1 = normalizedTypeRoots; _i < normalizedTypeRoots_1.length; _i++) {
+                                        var typeRoot = normalizedTypeRoots_1[_i];
+                                        if (ts.startsWith(moduleFileName, typeRoot)) {
+                                            var relativeFileName = moduleFileName.substring(typeRoot.length + 1);
+                                            return removeExtensionAndIndexPostFix(relativeFileName);
+                                        }
+                                    }
+                                }
+                            }
+                            function tryGetModuleNameAsNodeModule() {
+                                if (ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs) {
+                                    return undefined;
+                                }
+                                var indexOfNodeModules = moduleFileName.indexOf("node_modules");
+                                if (indexOfNodeModules < 0) {
+                                    return undefined;
+                                }
+                                var relativeFileName;
+                                if (sourceDirectory.indexOf(moduleFileName.substring(0, indexOfNodeModules - 1)) === 0) {
+                                    relativeFileName = moduleFileName.substring(indexOfNodeModules + 13);
+                                }
+                                else {
+                                    relativeFileName = getRelativePath(moduleFileName, sourceDirectory);
+                                }
+                                relativeFileName = ts.removeFileExtension(relativeFileName);
+                                if (ts.endsWith(relativeFileName, "/index")) {
+                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                }
+                                else {
+                                    try {
+                                        var moduleDirectory = ts.getDirectoryPath(moduleFileName);
+                                        var packageJsonContent = JSON.parse(context.host.readFile(ts.combinePaths(moduleDirectory, "package.json")));
+                                        if (packageJsonContent) {
+                                            var mainFile = packageJsonContent.main || packageJsonContent.typings;
+                                            if (mainFile) {
+                                                var mainExportFile = ts.toPath(mainFile, moduleDirectory, getCanonicalFileName);
+                                                if (ts.removeFileExtension(mainExportFile) === ts.removeFileExtension(moduleFileName)) {
+                                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                                }
+                                            }
+                                        }
+                                    }
+                                    catch (e) { }
+                                }
+                                return relativeFileName;
+                            }
+                        }
+                        function getPathRelativeToRootDirs(path, rootDirs) {
+                            for (var _i = 0, rootDirs_2 = rootDirs; _i < rootDirs_2.length; _i++) {
+                                var rootDir = rootDirs_2[_i];
+                                var relativeName = tryRemoveParentDirectoryName(path, rootDir);
+                                if (relativeName !== undefined) {
+                                    return relativeName;
+                                }
+                            }
+                            return undefined;
+                        }
+                        function removeExtensionAndIndexPostFix(fileName) {
+                            fileName = ts.removeFileExtension(fileName);
+                            if (ts.endsWith(fileName, "/index")) {
+                                fileName = fileName.substr(0, fileName.length - 6);
+                            }
+                            return fileName;
+                        }
+                        function getRelativePath(path, directoryPath) {
+                            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, false);
+                            return ts.moduleHasNonRelativeName(relativePath) ? "./" + relativePath : relativePath;
+                        }
+                        function tryRemoveParentDirectoryName(path, parentDirectory) {
+                            var index = path.indexOf(parentDirectory);
+                            if (index === 0) {
+                                return ts.endsWith(parentDirectory, ts.directorySeparator)
+                                    ? path.substring(parentDirectory.length)
+                                    : path.substring(parentDirectory.length + 1);
+                            }
+                            return undefined;
+                        }
+                    }
+                }
+                function createCodeAction(description, diagnosticArgs, newText, span, fileName, kind, moduleSpecifier) {
+                    return {
+                        description: ts.formatMessage.apply(undefined, [undefined, description].concat(diagnosticArgs)),
+                        changes: [{ fileName: fileName, textChanges: [{ newText: newText, span: span }] }],
+                        kind: kind,
+                        moduleSpecifier: moduleSpecifier
+                    };
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        codefix.registerCodeFix({
+            errorCodes: [
+                ts.Diagnostics._0_is_declared_but_never_used.code,
+                ts.Diagnostics.Property_0_is_declared_but_never_used.code
+            ],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var start = context.span.start;
+                var token = ts.getTokenAtPosition(sourceFile, start);
+                if (token.kind === 20) {
+                    token = ts.getTokenAtPosition(sourceFile, start + 1);
+                }
+                switch (token.kind) {
+                    case 70:
+                        switch (token.parent.kind) {
+                            case 223:
+                                switch (token.parent.parent.parent.kind) {
+                                    case 211:
+                                        var forStatement = token.parent.parent.parent;
+                                        var forInitializer = forStatement.initializer;
+                                        if (forInitializer.declarations.length === 1) {
+                                            return createCodeFix("", forInitializer.pos, forInitializer.end - forInitializer.pos);
+                                        }
+                                        else {
+                                            return removeSingleItem(forInitializer.declarations, token);
+                                        }
+                                    case 213:
+                                        var forOfStatement = token.parent.parent.parent;
+                                        if (forOfStatement.initializer.kind === 224) {
+                                            var forOfInitializer = forOfStatement.initializer;
+                                            return createCodeFix("{}", forOfInitializer.declarations[0].pos, forOfInitializer.declarations[0].end - forOfInitializer.declarations[0].pos);
+                                        }
+                                        break;
+                                    case 212:
+                                        return undefined;
+                                    case 256:
+                                        var catchClause = token.parent.parent;
+                                        var parameter = catchClause.variableDeclaration.getChildren()[0];
+                                        return createCodeFix("", parameter.pos, parameter.end - parameter.pos);
+                                    default:
+                                        var variableStatement = token.parent.parent.parent;
+                                        if (variableStatement.declarationList.declarations.length === 1) {
+                                            return createCodeFix("", variableStatement.pos, variableStatement.end - variableStatement.pos);
+                                        }
+                                        else {
+                                            var declarations = variableStatement.declarationList.declarations;
+                                            return removeSingleItem(declarations, token);
+                                        }
+                                }
+                            case 143:
+                                var typeParameters = token.parent.parent.typeParameters;
+                                if (typeParameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 2);
+                                }
+                                else {
+                                    return removeSingleItem(typeParameters, token);
+                                }
+                            case 144:
+                                var functionDeclaration = token.parent.parent;
+                                if (functionDeclaration.parameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                                }
+                                else {
+                                    return removeSingleItem(functionDeclaration.parameters, token);
+                                }
+                            case 234:
+                                var importEquals = findImportDeclaration(token);
+                                return createCodeFix("", importEquals.pos, importEquals.end - importEquals.pos);
+                            case 239:
+                                var namedImports = token.parent.parent;
+                                if (namedImports.elements.length === 1) {
+                                    var importSpec = findImportDeclaration(token);
+                                    return createCodeFix("", importSpec.pos, importSpec.end - importSpec.pos);
+                                }
+                                else {
+                                    return removeSingleItem(namedImports.elements, token);
+                                }
+                            case 236:
+                                var importClause = token.parent;
+                                if (!importClause.namedBindings) {
+                                    var importDecl = findImportDeclaration(importClause);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    return createCodeFix("", importClause.name.pos, importClause.namedBindings.pos - importClause.name.pos);
+                                }
+                            case 237:
+                                var namespaceImport = token.parent;
+                                if (namespaceImport.name == token && !namespaceImport.parent.name) {
+                                    var importDecl = findImportDeclaration(namespaceImport);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    var start_4 = namespaceImport.parent.name.end;
+                                    return createCodeFix("", start_4, namespaceImport.parent.namedBindings.end - start_4);
+                                }
+                        }
+                        break;
+                    case 147:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                    case 237:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                if (ts.isDeclarationName(token)) {
+                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                else if (ts.isLiteralComputedPropertyDeclarationName(token)) {
+                    return createCodeFix("", token.parent.parent.pos, token.parent.parent.end - token.parent.parent.pos);
+                }
+                else {
+                    return undefined;
+                }
+                function findImportDeclaration(token) {
+                    var importDecl = token;
+                    while (importDecl.kind != 235 && importDecl.parent) {
+                        importDecl = importDecl.parent;
+                    }
+                    return importDecl;
+                }
+                function createCodeFix(newText, start, length) {
+                    return [{
+                            description: ts.getLocaleSpecificMessage(ts.Diagnostics.Remove_unused_identifiers),
+                            changes: [{
+                                    fileName: sourceFile.fileName,
+                                    textChanges: [{ newText: newText, span: { start: start, length: length } }]
+                                }]
+                        }];
+                }
+                function removeSingleItem(elements, token) {
+                    if (elements[0] === token.parent) {
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos + 1);
+                    }
+                    else {
+                        return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 1);
+                    }
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
     ts.servicesVersion = "0.5";
     function createNode(kind, pos, end, parent) {
         var node = kind >= 141 ? new NodeObject(kind, pos, end) :
@@ -62067,11 +63214,11 @@ var ts;
             return pos;
         };
         NodeObject.prototype.createSyntaxList = function (nodes) {
-            var list = createNode(291, nodes.pos, nodes.end, this);
+            var list = createNode(292, nodes.pos, nodes.end, this);
             list._children = [];
             var pos = nodes.pos;
-            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
-                var node = nodes_5[_i];
+            for (var _i = 0, nodes_7 = nodes; _i < nodes_7.length; _i++) {
+                var node = nodes_7[_i];
                 if (pos < node.pos) {
                     pos = this.addSyntheticNodes(list._children, pos, node.pos);
                 }
@@ -62090,7 +63237,7 @@ var ts;
                 ts.scanner.setText((sourceFile || this.getSourceFile()).text);
                 children = [];
                 var pos_3 = this.pos;
-                var useJSDocScanner_1 = this.kind >= 278 && this.kind <= 290;
+                var useJSDocScanner_1 = this.kind >= 278 && this.kind <= 291;
                 var processNode = function (node) {
                     var isJSDocTagNode = ts.isJSDocTag(node);
                     if (!isJSDocTagNode && pos_3 < node.pos) {
@@ -62108,8 +63255,8 @@ var ts;
                     children.push(_this.createSyntaxList(nodes));
                     pos_3 = nodes.end;
                 };
-                if (this.jsDocComments) {
-                    for (var _i = 0, _a = this.jsDocComments; _i < _a.length; _i++) {
+                if (this.jsDoc) {
+                    for (var _i = 0, _a = this.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         processNode(jsDocComment);
                     }
@@ -62329,6 +63476,19 @@ var ts;
         SourceFileObject.prototype.getPositionOfLineAndCharacter = function (line, character) {
             return ts.getPositionOfLineAndCharacter(this, line, character);
         };
+        SourceFileObject.prototype.getLineEndOfPosition = function (pos) {
+            var line = this.getLineAndCharacterOfPosition(pos).line;
+            var lineStarts = this.getLineStarts();
+            var lastCharPos;
+            if (line + 1 >= lineStarts.length) {
+                lastCharPos = this.getEnd();
+            }
+            if (!lastCharPos) {
+                lastCharPos = lineStarts[line + 1] - 1;
+            }
+            var fullText = this.getFullText();
+            return fullText[lastCharPos] === "\n" && fullText[lastCharPos - 1] === "\r" ? lastCharPos - 1 : lastCharPos;
+        };
         SourceFileObject.prototype.getNamedDeclarations = function () {
             if (!this.namedDeclarations) {
                 this.namedDeclarations = this.computeNamedDeclarations();
@@ -62350,9 +63510,9 @@ var ts;
             }
             function getDeclarationName(declaration) {
                 if (declaration.name) {
-                    var result_6 = getTextOfIdentifierOrLiteral(declaration.name);
-                    if (result_6 !== undefined) {
-                        return result_6;
+                    var result_7 = getTextOfIdentifierOrLiteral(declaration.name);
+                    if (result_7 !== undefined) {
+                        return result_7;
                     }
                     if (declaration.name.kind === 142) {
                         var expr = declaration.name.expression;
@@ -63179,7 +64339,9 @@ var ts;
                     sourceFile: sourceFile,
                     span: span,
                     program: program,
-                    newLineCharacter: newLineChar
+                    newLineCharacter: newLineChar,
+                    host: host,
+                    cancellationToken: cancellationToken
                 };
                 var fixes = ts.codefix.getFixes(context);
                 if (fixes) {
@@ -63344,10 +64506,10 @@ var ts;
                     break;
                 default:
                     ts.forEachChild(node, walk);
-                    if (node.jsDocComments) {
-                        for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            ts.forEachChild(jsDocComment, walk);
+                    if (node.jsDoc) {
+                        for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            ts.forEachChild(jsDoc, walk);
                         }
                     }
             }
@@ -63544,7 +64706,7 @@ var ts;
                     this.trace = function (s) { return host.trace(s); };
                 }
                 this.resolveModuleName = function (moduleName, containingFile, compilerOptions, host) {
-                    var globalCache = _this.project.getTypingOptions().enableAutoDiscovery
+                    var globalCache = _this.project.getTypeAcquisition().enable
                         ? _this.project.projectService.typingsInstaller.globalTypingsCacheLocation
                         : undefined;
                     var primaryResult = ts.resolveModuleName(moduleName, containingFile, compilerOptions, host);
@@ -63576,15 +64738,15 @@ var ts;
                 var compilerOptions = this.getCompilationSettings();
                 var lastDeletedFileName = this.project.projectService.lastDeletedFile && this.project.projectService.lastDeletedFile.fileName;
                 for (var _i = 0, names_2 = names; _i < names_2.length; _i++) {
-                    var name_48 = names_2[_i];
-                    var resolution = newResolutions[name_48];
+                    var name_49 = names_2[_i];
+                    var resolution = newResolutions[name_49];
                     if (!resolution) {
-                        var existingResolution = currentResolutionsInFile && currentResolutionsInFile[name_48];
+                        var existingResolution = currentResolutionsInFile && currentResolutionsInFile[name_49];
                         if (moduleResolutionIsValid(existingResolution)) {
                             resolution = existingResolution;
                         }
                         else {
-                            newResolutions[name_48] = resolution = loader(name_48, containingFile, compilerOptions, this);
+                            newResolutions[name_49] = resolution = loader(name_49, containingFile, compilerOptions, this);
                         }
                         if (logChanges && this.filesWithChangedSetOfUnresolvedImports && !resolutionIsEqualTo(existingResolution, resolution)) {
                             this.filesWithChangedSetOfUnresolvedImports.push(path);
@@ -63746,8 +64908,8 @@ var ts;
             }
             return unique === 0;
         }
-        function typingOptionsChanged(opt1, opt2) {
-            return opt1.enableAutoDiscovery !== opt2.enableAutoDiscovery ||
+        function typeAcquisitionChanged(opt1, opt2) {
+            return opt1.enable !== opt2.enable ||
                 !setIsEqualTo(opt1.include, opt2.include) ||
                 !setIsEqualTo(opt1.exclude, opt2.exclude);
         }
@@ -63766,32 +64928,32 @@ var ts;
                 this.perProjectCache = ts.createMap();
             }
             TypingsCache.prototype.getTypingsForProject = function (project, unresolvedImports, forceRefresh) {
-                var typingOptions = project.getTypingOptions();
-                if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+                var typeAcquisition = project.getTypeAcquisition();
+                if (!typeAcquisition || !typeAcquisition.enable) {
                     return server.emptyArray;
                 }
                 var entry = this.perProjectCache[project.getProjectName()];
                 var result = entry ? entry.typings : server.emptyArray;
                 if (forceRefresh ||
                     !entry ||
-                    typingOptionsChanged(typingOptions, entry.typingOptions) ||
+                    typeAcquisitionChanged(typeAcquisition, entry.typeAcquisition) ||
                     compilerOptionsChanged(project.getCompilerOptions(), entry.compilerOptions) ||
                     unresolvedImportsChanged(unresolvedImports, entry.unresolvedImports)) {
                     this.perProjectCache[project.getProjectName()] = {
                         compilerOptions: project.getCompilerOptions(),
-                        typingOptions: typingOptions,
+                        typeAcquisition: typeAcquisition,
                         typings: result,
                         unresolvedImports: unresolvedImports,
                         poisoned: true
                     };
-                    this.installer.enqueueInstallTypingsRequest(project, typingOptions, unresolvedImports);
+                    this.installer.enqueueInstallTypingsRequest(project, typeAcquisition, unresolvedImports);
                 }
                 return result;
             };
-            TypingsCache.prototype.updateTypingsForProject = function (projectName, compilerOptions, typingOptions, unresolvedImports, newTypings) {
+            TypingsCache.prototype.updateTypingsForProject = function (projectName, compilerOptions, typeAcquisition, unresolvedImports, newTypings) {
                 this.perProjectCache[projectName] = {
                     compilerOptions: compilerOptions,
-                    typingOptions: typingOptions,
+                    typeAcquisition: typeAcquisition,
                     typings: server.toSortedReadonlyArray(newTypings),
                     unresolvedImports: unresolvedImports,
                     poisoned: false
@@ -64289,7 +65451,8 @@ var ts;
         }
         server.createNoSemanticFeaturesWrapper = createNoSemanticFeaturesWrapper;
         var Project = (function () {
-            function Project(projectKind, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) {
+            function Project(projectName, projectKind, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) {
+                this.projectName = projectName;
                 this.projectKind = projectKind;
                 this.projectService = projectService;
                 this.documentRegistry = documentRegistry;
@@ -64372,6 +65535,9 @@ var ts;
                 this.languageServiceEnabled = false;
                 this.projectService.onUpdateLanguageServiceStateForProject(this, false);
             };
+            Project.prototype.getProjectName = function () {
+                return this.projectName;
+            };
             Project.prototype.getSourceFile = function (path) {
                 if (!this.program) {
                     return undefined;
@@ -64529,9 +65695,9 @@ var ts;
                 }
                 var unresolvedImports;
                 if (file.resolvedModules) {
-                    for (var name_49 in file.resolvedModules) {
-                        if (!file.resolvedModules[name_49] && !ts.isExternalModuleNameRelative(name_49)) {
-                            var trimmed = name_49.trim();
+                    for (var name_50 in file.resolvedModules) {
+                        if (!file.resolvedModules[name_50] && !ts.isExternalModuleNameRelative(name_50)) {
+                            var trimmed = name_50.trim();
                             var i = trimmed.indexOf("/");
                             if (i !== -1 && trimmed.charCodeAt(0) === 64) {
                                 i = trimmed.indexOf("/", i + 1);
@@ -64753,15 +65919,10 @@ var ts;
         var InferredProject = (function (_super) {
             __extends(InferredProject, _super);
             function InferredProject(projectService, documentRegistry, compilerOptions) {
-                var _this = _super.call(this, ProjectKind.Inferred, projectService, documentRegistry, undefined, true, compilerOptions, false) || this;
+                var _this = _super.call(this, InferredProject.newName(), ProjectKind.Inferred, projectService, documentRegistry, undefined, true, compilerOptions, false) || this;
                 _this.directoriesWatchedForTsconfig = [];
-                _this.inferredProjectName = server.makeInferredProjectName(InferredProject.NextId);
-                InferredProject.NextId++;
                 return _this;
             }
-            InferredProject.prototype.getProjectName = function () {
-                return this.inferredProjectName;
-            };
             InferredProject.prototype.getProjectRootPath = function () {
                 if (this.projectService.useSingleInferredProject) {
                     return undefined;
@@ -64776,45 +65937,52 @@ var ts;
                     this.projectService.stopWatchingDirectory(directory);
                 }
             };
-            InferredProject.prototype.getTypingOptions = function () {
+            InferredProject.prototype.getTypeAcquisition = function () {
                 return {
-                    enableAutoDiscovery: allRootFilesAreJsOrDts(this),
+                    enable: allRootFilesAreJsOrDts(this),
                     include: [],
                     exclude: []
                 };
             };
             return InferredProject;
         }(Project));
-        InferredProject.NextId = 1;
+        InferredProject.newName = (function () {
+            var nextId = 1;
+            return function () {
+                var id = nextId;
+                nextId++;
+                return server.makeInferredProjectName(id);
+            };
+        })();
         server.InferredProject = InferredProject;
         var ConfiguredProject = (function (_super) {
             __extends(ConfiguredProject, _super);
             function ConfiguredProject(configFileName, projectService, documentRegistry, hasExplicitListOfFiles, compilerOptions, wildcardDirectories, languageServiceEnabled, compileOnSaveEnabled) {
-                var _this = _super.call(this, ProjectKind.Configured, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
-                _this.configFileName = configFileName;
+                var _this = _super.call(this, configFileName, ProjectKind.Configured, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
                 _this.wildcardDirectories = wildcardDirectories;
                 _this.compileOnSaveEnabled = compileOnSaveEnabled;
                 _this.openRefCount = 0;
+                _this.canonicalConfigFilePath = server.asNormalizedPath(projectService.toCanonicalFileName(configFileName));
                 return _this;
             }
+            ConfiguredProject.prototype.getConfigFilePath = function () {
+                return this.getProjectName();
+            };
             ConfiguredProject.prototype.getProjectRootPath = function () {
-                return ts.getDirectoryPath(this.configFileName);
+                return ts.getDirectoryPath(this.getConfigFilePath());
             };
             ConfiguredProject.prototype.setProjectErrors = function (projectErrors) {
                 this.projectErrors = projectErrors;
             };
-            ConfiguredProject.prototype.setTypingOptions = function (newTypingOptions) {
-                this.typingOptions = newTypingOptions;
-            };
-            ConfiguredProject.prototype.getTypingOptions = function () {
-                return this.typingOptions;
+            ConfiguredProject.prototype.setTypeAcquisition = function (newTypeAcquisition) {
+                this.typeAcquisition = newTypeAcquisition;
             };
-            ConfiguredProject.prototype.getProjectName = function () {
-                return this.configFileName;
+            ConfiguredProject.prototype.getTypeAcquisition = function () {
+                return this.typeAcquisition;
             };
             ConfiguredProject.prototype.watchConfigFile = function (callback) {
                 var _this = this;
-                this.projectFileWatcher = this.projectService.host.watchFile(this.configFileName, function (_) { return callback(_this); });
+                this.projectFileWatcher = this.projectService.host.watchFile(this.getConfigFilePath(), function (_) { return callback(_this); });
             };
             ConfiguredProject.prototype.watchTypeRoots = function (callback) {
                 var _this = this;
@@ -64832,7 +66000,7 @@ var ts;
                 if (this.directoryWatcher) {
                     return;
                 }
-                var directoryToWatch = ts.getDirectoryPath(this.configFileName);
+                var directoryToWatch = ts.getDirectoryPath(this.getConfigFilePath());
                 this.projectService.logger.info("Add recursive watcher for: " + directoryToWatch);
                 this.directoryWatcher = this.projectService.host.watchDirectory(directoryToWatch, function (path) { return callback(_this, path); }, true);
             };
@@ -64841,7 +66009,7 @@ var ts;
                 if (!this.wildcardDirectories) {
                     return;
                 }
-                var configDirectoryPath = ts.getDirectoryPath(this.configFileName);
+                var configDirectoryPath = ts.getDirectoryPath(this.getConfigFilePath());
                 this.directoriesWatchedForWildcards = ts.reduceProperties(this.wildcardDirectories, function (watchers, flag, directory) {
                     if (ts.comparePaths(configDirectoryPath, directory, ".", !_this.projectService.host.useCaseSensitiveFileNames) !== 0) {
                         var recursive = (flag & 1) !== 0;
@@ -64891,8 +66059,7 @@ var ts;
         var ExternalProject = (function (_super) {
             __extends(ExternalProject, _super);
             function ExternalProject(externalProjectName, projectService, documentRegistry, compilerOptions, languageServiceEnabled, compileOnSaveEnabled, projectFilePath) {
-                var _this = _super.call(this, ProjectKind.External, projectService, documentRegistry, true, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
-                _this.externalProjectName = externalProjectName;
+                var _this = _super.call(this, externalProjectName, ProjectKind.External, projectService, documentRegistry, true, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
                 _this.compileOnSaveEnabled = compileOnSaveEnabled;
                 _this.projectFilePath = projectFilePath;
                 return _this;
@@ -64901,37 +66068,34 @@ var ts;
                 if (this.projectFilePath) {
                     return ts.getDirectoryPath(this.projectFilePath);
                 }
-                return ts.getDirectoryPath(ts.normalizeSlashes(this.externalProjectName));
+                return ts.getDirectoryPath(ts.normalizeSlashes(this.getProjectName()));
             };
-            ExternalProject.prototype.getTypingOptions = function () {
-                return this.typingOptions;
+            ExternalProject.prototype.getTypeAcquisition = function () {
+                return this.typeAcquisition;
             };
             ExternalProject.prototype.setProjectErrors = function (projectErrors) {
                 this.projectErrors = projectErrors;
             };
-            ExternalProject.prototype.setTypingOptions = function (newTypingOptions) {
-                if (!newTypingOptions) {
-                    newTypingOptions = {
-                        enableAutoDiscovery: allRootFilesAreJsOrDts(this),
+            ExternalProject.prototype.setTypeAcquisition = function (newTypeAcquisition) {
+                if (!newTypeAcquisition) {
+                    newTypeAcquisition = {
+                        enable: allRootFilesAreJsOrDts(this),
                         include: [],
                         exclude: []
                     };
                 }
                 else {
-                    if (newTypingOptions.enableAutoDiscovery === undefined) {
-                        newTypingOptions.enableAutoDiscovery = allRootFilesAreJsOrDts(this);
+                    if (newTypeAcquisition.enable === undefined) {
+                        newTypeAcquisition.enable = allRootFilesAreJsOrDts(this);
                     }
-                    if (!newTypingOptions.include) {
-                        newTypingOptions.include = [];
+                    if (!newTypeAcquisition.include) {
+                        newTypeAcquisition.include = [];
                     }
-                    if (!newTypingOptions.exclude) {
-                        newTypingOptions.exclude = [];
+                    if (!newTypeAcquisition.exclude) {
+                        newTypeAcquisition.exclude = [];
                     }
                 }
-                this.typingOptions = newTypingOptions;
-            };
-            ExternalProject.prototype.getProjectName = function () {
-                return this.externalProjectName;
+                this.typeAcquisition = newTypeAcquisition;
             };
             return ExternalProject;
         }(Project));
@@ -65123,7 +66287,7 @@ var ts;
                 }
                 switch (response.kind) {
                     case server.ActionSet:
-                        this.typingsCache.updateTypingsForProject(response.projectName, response.compilerOptions, response.typingOptions, response.unresolvedImports, response.typings);
+                        this.typingsCache.updateTypingsForProject(response.projectName, response.compilerOptions, response.typeAcquisition, response.unresolvedImports, response.typings);
                         break;
                     case server.ActionInvalidate:
                         this.typingsCache.deleteTypingsForProject(response.projectName);
@@ -65252,7 +66416,7 @@ var ts;
             ProjectService.prototype.onTypeRootFileChanged = function (project, fileName) {
                 var _this = this;
                 this.logger.info("Type root file " + fileName + " changed");
-                this.throttledOperations.schedule(project.configFileName + " * type root", 250, function () {
+                this.throttledOperations.schedule(project.getConfigFilePath() + " * type root", 250, function () {
                     project.updateTypes();
                     _this.updateConfiguredProject(project);
                     _this.refreshInferredProjects();
@@ -65264,11 +66428,11 @@ var ts;
                     return;
                 }
                 this.logger.info("Detected source file changes: " + fileName);
-                this.throttledOperations.schedule(project.configFileName, 250, function () { return _this.handleChangeInSourceFileForConfiguredProject(project, fileName); });
+                this.throttledOperations.schedule(project.getConfigFilePath(), 250, function () { return _this.handleChangeInSourceFileForConfiguredProject(project, fileName); });
             };
             ProjectService.prototype.handleChangeInSourceFileForConfiguredProject = function (project, triggerFile) {
                 var _this = this;
-                var _a = this.convertConfigFileContentToProjectOptions(project.configFileName), projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
+                var _a = this.convertConfigFileContentToProjectOptions(project.getConfigFilePath()), projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
                 this.reportConfigFileDiagnostics(project.getProjectName(), configFileErrors, triggerFile);
                 var newRootFiles = projectOptions.files.map((function (f) { return _this.getCanonicalFileName(f); }));
                 var currentRootFiles = project.getRootFiles().map((function (f) { return _this.getCanonicalFileName(f); }));
@@ -65279,8 +66443,10 @@ var ts;
                 }
             };
             ProjectService.prototype.onConfigChangedForConfiguredProject = function (project) {
-                this.logger.info("Config file changed: " + project.configFileName);
-                this.updateConfiguredProject(project);
+                var configFileName = project.getConfigFilePath();
+                this.logger.info("Config file changed: " + configFileName);
+                var configFileErrors = this.updateConfiguredProject(project);
+                this.reportConfigFileDiagnostics(configFileName, configFileErrors, configFileName);
                 this.refreshInferredProjects();
             };
             ProjectService.prototype.onConfigFileAddedForInferredProject = function (fileName) {
@@ -65466,7 +66632,13 @@ var ts;
                 }
             };
             ProjectService.prototype.findConfiguredProjectByProjectName = function (configFileName) {
-                return findProjectByName(configFileName, this.configuredProjects);
+                configFileName = server.asNormalizedPath(this.toCanonicalFileName(configFileName));
+                for (var _i = 0, _a = this.configuredProjects; _i < _a.length; _i++) {
+                    var proj = _a[_i];
+                    if (proj.canonicalConfigFilePath === configFileName) {
+                        return proj;
+                    }
+                }
             };
             ProjectService.prototype.findExternalProjectByProjectName = function (projectFileName) {
                 return findProjectByName(projectFileName, this.externalProjects);
@@ -65496,7 +66668,7 @@ var ts;
                     compilerOptions: parsedCommandLine.options,
                     configHasFilesProperty: config["files"] !== undefined,
                     wildcardDirectories: ts.createMap(parsedCommandLine.wildcardDirectories),
-                    typingOptions: parsedCommandLine.typingOptions,
+                    typeAcquisition: parsedCommandLine.typeAcquisition,
                     compileOnSave: parsedCommandLine.compileOnSave
                 };
                 return { success: true, projectOptions: projectOptions, configFileErrors: errors };
@@ -65519,10 +66691,10 @@ var ts;
                 }
                 return false;
             };
-            ProjectService.prototype.createAndAddExternalProject = function (projectFileName, files, options, typingOptions) {
+            ProjectService.prototype.createAndAddExternalProject = function (projectFileName, files, options, typeAcquisition) {
                 var compilerOptions = convertCompilerOptions(options);
                 var project = new server.ExternalProject(projectFileName, this, this.documentRegistry, compilerOptions, !this.exceededTotalSizeLimitForNonTsFiles(compilerOptions, files, externalFilePropertyReader), options.compileOnSave === undefined ? true : options.compileOnSave);
-                this.addFilesToProjectAndUpdateGraph(project, files, externalFilePropertyReader, undefined, typingOptions, undefined);
+                this.addFilesToProjectAndUpdateGraph(project, files, externalFilePropertyReader, undefined, typeAcquisition, undefined);
                 this.externalProjects.push(project);
                 return project;
             };
@@ -65539,7 +66711,7 @@ var ts;
                 var _this = this;
                 var sizeLimitExceeded = this.exceededTotalSizeLimitForNonTsFiles(projectOptions.compilerOptions, projectOptions.files, fileNamePropertyReader);
                 var project = new server.ConfiguredProject(configFileName, this, this.documentRegistry, projectOptions.configHasFilesProperty, projectOptions.compilerOptions, projectOptions.wildcardDirectories, !sizeLimitExceeded, projectOptions.compileOnSave === undefined ? false : projectOptions.compileOnSave);
-                this.addFilesToProjectAndUpdateGraph(project, projectOptions.files, fileNamePropertyReader, clientFileName, projectOptions.typingOptions, configFileErrors);
+                this.addFilesToProjectAndUpdateGraph(project, projectOptions.files, fileNamePropertyReader, clientFileName, projectOptions.typeAcquisition, configFileErrors);
                 project.watchConfigFile(function (project) { return _this.onConfigChangedForConfiguredProject(project); });
                 if (!sizeLimitExceeded) {
                     this.watchConfigDirectoryForProject(project, projectOptions);
@@ -65555,7 +66727,7 @@ var ts;
                     project.watchConfigDirectory(function (project, path) { return _this.onSourceFileInDirectoryChangedForConfiguredProject(project, path); });
                 }
             };
-            ProjectService.prototype.addFilesToProjectAndUpdateGraph = function (project, files, propertyReader, clientFileName, typingOptions, configFileErrors) {
+            ProjectService.prototype.addFilesToProjectAndUpdateGraph = function (project, files, propertyReader, clientFileName, typeAcquisition, configFileErrors) {
                 var errors;
                 for (var _i = 0, files_4 = files; _i < files_4.length; _i++) {
                     var f = files_4[_i];
@@ -65571,7 +66743,7 @@ var ts;
                     }
                 }
                 project.setProjectErrors(ts.concatenate(configFileErrors, errors));
-                project.setTypingOptions(typingOptions);
+                project.setTypeAcquisition(typeAcquisition);
                 project.updateGraph();
             };
             ProjectService.prototype.openConfigFile = function (configFileName, clientFileName) {
@@ -65586,7 +66758,7 @@ var ts;
                     errors: project.getProjectErrors()
                 };
             };
-            ProjectService.prototype.updateNonInferredProject = function (project, newUncheckedFiles, propertyReader, newOptions, newTypingOptions, compileOnSave, configFileErrors) {
+            ProjectService.prototype.updateNonInferredProject = function (project, newUncheckedFiles, propertyReader, newOptions, newTypeAcquisition, compileOnSave, configFileErrors) {
                 var oldRootScriptInfos = project.getRootScriptInfos();
                 var newRootScriptInfos = [];
                 var newRootScriptInfoMap = server.createNormalizedPathMap();
@@ -65648,7 +66820,7 @@ var ts;
                     }
                 }
                 project.setCompilerOptions(newOptions);
-                project.setTypingOptions(newTypingOptions);
+                project.setTypeAcquisition(newTypeAcquisition);
                 if (compileOnSave !== undefined) {
                     project.compileOnSaveEnabled = compileOnSave;
                 }
@@ -65656,12 +66828,12 @@ var ts;
                 project.updateGraph();
             };
             ProjectService.prototype.updateConfiguredProject = function (project) {
-                if (!this.host.fileExists(project.configFileName)) {
+                if (!this.host.fileExists(project.getConfigFilePath())) {
                     this.logger.info("Config file deleted");
                     this.removeProject(project);
                     return;
                 }
-                var _a = this.convertConfigFileContentToProjectOptions(project.configFileName), success = _a.success, projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
+                var _a = this.convertConfigFileContentToProjectOptions(project.getConfigFilePath()), success = _a.success, projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
                 if (!success) {
                     this.updateNonInferredProject(project, [], fileNamePropertyReader, {}, {}, false, configFileErrors);
                     return configFileErrors;
@@ -65669,7 +66841,7 @@ var ts;
                 if (this.exceededTotalSizeLimitForNonTsFiles(projectOptions.compilerOptions, projectOptions.files, fileNamePropertyReader)) {
                     project.setCompilerOptions(projectOptions.compilerOptions);
                     if (!project.languageServiceEnabled) {
-                        return;
+                        return configFileErrors;
                     }
                     project.disableLanguageService();
                     project.stopWatchingDirectory();
@@ -65679,8 +66851,9 @@ var ts;
                         project.enableLanguageService();
                     }
                     this.watchConfigDirectoryForProject(project, projectOptions);
-                    this.updateNonInferredProject(project, projectOptions.files, fileNamePropertyReader, projectOptions.compilerOptions, projectOptions.typingOptions, projectOptions.compileOnSave, configFileErrors);
+                    this.updateNonInferredProject(project, projectOptions.files, fileNamePropertyReader, projectOptions.compilerOptions, projectOptions.typeAcquisition, projectOptions.compileOnSave, configFileErrors);
                 }
+                return configFileErrors;
             };
             ProjectService.prototype.createInferredProjectWithRootFileIfNecessary = function (root) {
                 var _this = this;
@@ -65910,6 +67083,10 @@ var ts;
                 }
             };
             ProjectService.prototype.openExternalProject = function (proj) {
+                if (proj.typingOptions && !proj.typeAcquisition) {
+                    var typeAcquisition = ts.convertEnableAutoDiscoveryToEnable(proj.typingOptions);
+                    proj.typeAcquisition = typeAcquisition;
+                }
                 var tsConfigFiles;
                 var rootFiles = [];
                 for (var _i = 0, _a = proj.rootFiles; _i < _a.length; _i++) {
@@ -65931,7 +67108,7 @@ var ts;
                 var exisingConfigFiles;
                 if (externalProject) {
                     if (!tsConfigFiles) {
-                        this.updateNonInferredProject(externalProject, proj.rootFiles, externalFilePropertyReader, convertCompilerOptions(proj.options), proj.typingOptions, proj.options.compileOnSave, undefined);
+                        this.updateNonInferredProject(externalProject, proj.rootFiles, externalFilePropertyReader, convertCompilerOptions(proj.options), proj.typeAcquisition, proj.options.compileOnSave, undefined);
                         return;
                     }
                     this.closeExternalProject(proj.projectFileName, true);
@@ -65981,7 +67158,7 @@ var ts;
                 }
                 else {
                     delete this.externalProjectToConfiguredProjectMap[proj.projectFileName];
-                    this.createAndAddExternalProject(proj.projectFileName, rootFiles, proj.options, proj.typingOptions);
+                    this.createAndAddExternalProject(proj.projectFileName, rootFiles, proj.options, proj.typeAcquisition);
                 }
                 this.refreshInferredProjects();
             };
@@ -67059,9 +68236,9 @@ var ts;
                 if (simplifiedResult) {
                     return completions.entries.reduce(function (result, entry) {
                         if (completions.isMemberCompletion || (entry.name.toLowerCase().indexOf(prefix.toLowerCase()) === 0)) {
-                            var name_50 = entry.name, kind = entry.kind, kindModifiers = entry.kindModifiers, sortText = entry.sortText, replacementSpan = entry.replacementSpan;
+                            var name_51 = entry.name, kind = entry.kind, kindModifiers = entry.kindModifiers, sortText = entry.sortText, replacementSpan = entry.replacementSpan;
                             var convertedSpan = replacementSpan ? _this.decorateSpan(replacementSpan, scriptInfo) : undefined;
-                            result.push({ name: name_50, kind: kind, kindModifiers: kindModifiers, sortText: sortText, replacementSpan: convertedSpan });
+                            result.push({ name: name_51, kind: kind, kindModifiers: kindModifiers, sortText: sortText, replacementSpan: convertedSpan });
                         }
                         return result;
                     }, []).sort(function (a, b) { return ts.compareStrings(a.name, b.name); });
@@ -68324,6 +69501,7 @@ var ts;
                         os.tmpdir();
                     break;
                 case "linux":
+                case "android":
                     basePath = (os.homedir && os.homedir()) ||
                         process.env.HOME ||
                         ((process.env.LOGNAME || process.env.USER) && "/home/" + (process.env.LOGNAME || process.env.USER)) ||
@@ -68486,9 +69664,9 @@ var ts;
             NodeTypingsInstaller.prototype.onProjectClosed = function (p) {
                 this.installer.send({ projectName: p.getProjectName(), kind: "closeProject" });
             };
-            NodeTypingsInstaller.prototype.enqueueInstallTypingsRequest = function (project, typingOptions, unresolvedImports) {
+            NodeTypingsInstaller.prototype.enqueueInstallTypingsRequest = function (project, typeAcquisition, unresolvedImports) {
                 var _this = this;
-                var request = server.createInstallTypingsRequest(project, typingOptions, unresolvedImports);
+                var request = server.createInstallTypingsRequest(project, typeAcquisition, unresolvedImports);
                 if (this.logger.hasLevel(server.LogLevel.verbose)) {
                     if (this.logger.hasLevel(server.LogLevel.verbose)) {
                         this.logger.info("Scheduling throttled operation: " + JSON.stringify(request));
@@ -68511,7 +69689,8 @@ var ts;
                             telemetryEventName: "typingsInstalled",
                             payload: {
                                 installedPackages: response.packagesToInstall.join(","),
-                                installSuccess: response.installSuccess
+                                installSuccess: response.installSuccess,
+                                typingsInstallerVersion: response.typingsInstallerVersion
                             }
                         };
                         var eventName = "telemetry";
@@ -68723,6 +69902,10 @@ var ts;
                 eventPort = v;
             }
         }
+        var localeStr = server.findArgument("--locale");
+        if (localeStr) {
+            ts.validateLocaleAndSetLanguage(localeStr, sys);
+        }
         var useSingleInferredProject = server.hasArgument("--useSingleInferredProject");
         var disableAutomaticTypingAcquisition = server.hasArgument("--disableAutomaticTypingAcquisition");
         var telemetryEnabled = server.hasArgument(server.Arguments.EnableTelemetry);
@@ -69331,7 +70514,7 @@ var ts;
                 if (result.error) {
                     return {
                         options: {},
-                        typingOptions: {},
+                        typeAcquisition: {},
                         files: [],
                         raw: {},
                         errors: [realizeDiagnostic(result.error, "\r\n")]
@@ -69341,7 +70524,7 @@ var ts;
                 var configFile = ts.parseJsonConfigFileContent(result.config, _this.host, ts.getDirectoryPath(normalizedFileName), {}, normalizedFileName);
                 return {
                     options: configFile.options,
-                    typingOptions: configFile.typingOptions,
+                    typeAcquisition: configFile.typeAcquisition,
                     files: configFile.fileNames,
                     raw: configFile.raw,
                     errors: realizeDiagnostics(configFile.errors, "\r\n")
@@ -69356,7 +70539,7 @@ var ts;
             var getCanonicalFileName = ts.createGetCanonicalFileName(false);
             return this.forwardJSONCall("discoverTypings()", function () {
                 var info = JSON.parse(discoverTypingsJson);
-                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typingOptions, info.unresolvedImports);
+                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typeAcquisition, info.unresolvedImports);
             });
         };
         return CoreServicesShimObject;
diff --git a/node_modules/typescript/lib/tsserverlibrary.d.ts b/node_modules/typescript/lib/tsserverlibrary.d.ts
index 16d810866..3f46cb68b 100644
--- a/node_modules/typescript/lib/tsserverlibrary.d.ts
+++ b/node_modules/typescript/lib/tsserverlibrary.d.ts
@@ -318,7 +318,8 @@ declare namespace ts.server.protocol {
         projectFileName: string;
         rootFiles: ExternalFile[];
         options: ExternalProjectCompilerOptions;
-        typingOptions?: TypingOptions;
+        typingOptions?: TypeAcquisition;
+        typeAcquisition?: TypeAcquisition;
     }
     interface CompileOnSaveMixin {
         compileOnSave?: boolean;
@@ -715,6 +716,7 @@ declare namespace ts.server.protocol {
     interface TypingsInstalledTelemetryEventPayload {
         installedPackages: string;
         installSuccess: boolean;
+        typingsInstallerVersion: string;
     }
     interface NavBarResponse extends Response {
         body?: NavigationBarItem[];
@@ -1148,23 +1150,25 @@ declare namespace ts {
         JSDocThisType = 277,
         JSDocComment = 278,
         JSDocTag = 279,
-        JSDocParameterTag = 280,
-        JSDocReturnTag = 281,
-        JSDocTypeTag = 282,
-        JSDocTemplateTag = 283,
-        JSDocTypedefTag = 284,
-        JSDocPropertyTag = 285,
-        JSDocTypeLiteral = 286,
-        JSDocLiteralType = 287,
-        JSDocNullKeyword = 288,
-        JSDocUndefinedKeyword = 289,
-        JSDocNeverKeyword = 290,
-        SyntaxList = 291,
-        NotEmittedStatement = 292,
-        PartiallyEmittedExpression = 293,
-        MergeDeclarationMarker = 294,
-        EndOfDeclarationMarker = 295,
-        Count = 296,
+        JSDocAugmentsTag = 280,
+        JSDocParameterTag = 281,
+        JSDocReturnTag = 282,
+        JSDocTypeTag = 283,
+        JSDocTemplateTag = 284,
+        JSDocTypedefTag = 285,
+        JSDocPropertyTag = 286,
+        JSDocTypeLiteral = 287,
+        JSDocLiteralType = 288,
+        JSDocNullKeyword = 289,
+        JSDocUndefinedKeyword = 290,
+        JSDocNeverKeyword = 291,
+        SyntaxList = 292,
+        NotEmittedStatement = 293,
+        PartiallyEmittedExpression = 294,
+        MergeDeclarationMarker = 295,
+        EndOfDeclarationMarker = 296,
+        RawExpression = 297,
+        Count = 298,
         FirstAssignment = 57,
         LastAssignment = 69,
         FirstCompoundAssignment = 58,
@@ -1191,9 +1195,9 @@ declare namespace ts {
         LastBinaryOperator = 69,
         FirstNode = 141,
         FirstJSDocNode = 262,
-        LastJSDocNode = 287,
+        LastJSDocNode = 288,
         FirstJSDocTagNode = 278,
-        LastJSDocTagNode = 290,
+        LastJSDocTagNode = 291,
     }
     const enum NodeFlags {
         None = 0,
@@ -1270,7 +1274,8 @@ declare namespace ts {
         parent?: Node;
         original?: Node;
         startsOnNewLine?: boolean;
-        jsDocComments?: JSDoc[];
+        jsDoc?: JSDoc[];
+        jsDocCache?: (JSDoc | JSDocTag)[];
         symbol?: Symbol;
         locals?: SymbolTable;
         nextContainer?: Node;
@@ -1280,6 +1285,7 @@ declare namespace ts {
     }
     interface NodeArray<T extends Node> extends Array<T>, TextRange {
         hasTrailingComma?: boolean;
+        transformFlags?: TransformFlags;
     }
     interface Token<TKind extends SyntaxKind> extends Node {
         kind: TKind;
@@ -1322,14 +1328,14 @@ declare namespace ts {
         right: Identifier;
     }
     type EntityName = Identifier | QualifiedName;
-    type PropertyName = Identifier | LiteralExpression | ComputedPropertyName;
-    type DeclarationName = Identifier | LiteralExpression | ComputedPropertyName | BindingPattern;
+    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
+    type DeclarationName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName | BindingPattern;
     interface Declaration extends Node {
         _declarationBrand: any;
         name?: DeclarationName;
     }
     interface DeclarationStatement extends Declaration, Statement {
-        name?: Identifier | LiteralExpression;
+        name?: Identifier | StringLiteral | NumericLiteral;
     }
     interface ComputedPropertyName extends Node {
         kind: SyntaxKind.ComputedPropertyName;
@@ -1431,18 +1437,16 @@ declare namespace ts {
     interface PropertyLikeDeclaration extends Declaration {
         name: PropertyName;
     }
-    interface BindingPattern extends Node {
-        elements: NodeArray<BindingElement | ArrayBindingElement>;
-    }
-    interface ObjectBindingPattern extends BindingPattern {
+    interface ObjectBindingPattern extends Node {
         kind: SyntaxKind.ObjectBindingPattern;
         elements: NodeArray<BindingElement>;
     }
-    type ArrayBindingElement = BindingElement | OmittedExpression;
-    interface ArrayBindingPattern extends BindingPattern {
+    interface ArrayBindingPattern extends Node {
         kind: SyntaxKind.ArrayBindingPattern;
         elements: NodeArray<ArrayBindingElement>;
     }
+    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
+    type ArrayBindingElement = BindingElement | OmittedExpression;
     interface FunctionLikeDeclaration extends SignatureDeclaration {
         _functionLikeDeclarationBrand: any;
         asteriskToken?: AsteriskToken;
@@ -1565,7 +1569,7 @@ declare namespace ts {
     }
     interface StringLiteral extends LiteralExpression {
         kind: SyntaxKind.StringLiteral;
-        textSourceNode?: Identifier | StringLiteral;
+        textSourceNode?: Identifier | StringLiteral | NumericLiteral;
     }
     interface Expression extends Node {
         _expressionBrand: any;
@@ -1664,17 +1668,25 @@ declare namespace ts {
         operatorToken: BinaryOperatorToken;
         right: Expression;
     }
-    interface AssignmentExpression extends BinaryExpression {
+    type AssignmentOperatorToken = Token<AssignmentOperator>;
+    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
         left: LeftHandSideExpression;
-        operatorToken: Token<SyntaxKind.EqualsToken>;
+        operatorToken: TOperator;
     }
-    interface ObjectDestructuringAssignment extends AssignmentExpression {
+    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ObjectLiteralExpression;
     }
-    interface ArrayDestructuringAssignment extends AssignmentExpression {
+    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ArrayLiteralExpression;
     }
     type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
+    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
+    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
+    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Expression;
+    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
+    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
+    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
+    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
     interface ConditionalExpression extends Expression {
         kind: SyntaxKind.ConditionalExpression;
         condition: Expression;
@@ -1867,6 +1879,10 @@ declare namespace ts {
     interface EndOfDeclarationMarker extends Statement {
         kind: SyntaxKind.EndOfDeclarationMarker;
     }
+    interface RawExpression extends PrimaryExpression {
+        kind: SyntaxKind.RawExpression;
+        text: string;
+    }
     interface MergeDeclarationMarker extends Statement {
         kind: SyntaxKind.MergeDeclarationMarker;
     }
@@ -1894,6 +1910,9 @@ declare namespace ts {
         kind: SyntaxKind.ExpressionStatement;
         expression: Expression;
     }
+    interface PrologueDirective extends ExpressionStatement {
+        expression: StringLiteral;
+    }
     interface IfStatement extends Statement {
         kind: SyntaxKind.IfStatement;
         expression: Expression;
@@ -2041,7 +2060,7 @@ declare namespace ts {
     type ModuleName = Identifier | StringLiteral;
     interface ModuleDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ModuleDeclaration;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral;
         body?: ModuleBlock | NamespaceDeclaration | JSDocNamespaceDeclaration | Identifier;
     }
     interface NamespaceDeclaration extends ModuleDeclaration {
@@ -2193,7 +2212,7 @@ declare namespace ts {
     type JSDocTypeReferencingNode = JSDocThisType | JSDocConstructorType | JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
     interface JSDocRecordMember extends PropertySignature {
         kind: SyntaxKind.JSDocRecordMember;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral | NumericLiteral;
         type?: JSDocType;
     }
     interface JSDoc extends Node {
@@ -2209,6 +2228,10 @@ declare namespace ts {
     interface JSDocUnknownTag extends JSDocTag {
         kind: SyntaxKind.JSDocTag;
     }
+    interface JSDocAugmentsTag extends JSDocTag {
+        kind: SyntaxKind.JSDocAugmentsTag;
+        typeExpression: JSDocTypeExpression;
+    }
     interface JSDocTemplateTag extends JSDocTag {
         kind: SyntaxKind.JSDocTemplateTag;
         typeParameters: NodeArray<TypeParameterDeclaration>;
@@ -2332,7 +2355,6 @@ declare namespace ts {
         moduleAugmentations: LiteralExpression[];
         patternAmbientModules?: PatternAmbientModule[];
         ambientModuleNames: string[];
-        externalHelpersModuleName?: Identifier;
     }
     interface ScriptReferenceHost {
         getCompilerOptions(): CompilerOptions;
@@ -2453,6 +2475,7 @@ declare namespace ts {
         getJsxIntrinsicTagNames(): Symbol[];
         isOptionalParameter(node: ParameterDeclaration): boolean;
         getAmbientModules(): Symbol[];
+        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
         tryFindAmbientModuleWithoutAugmentations(moduleName: string): Symbol;
         getDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): Diagnostic[];
         getGlobalDiagnostics(): Diagnostic[];
@@ -2777,7 +2800,7 @@ declare namespace ts {
         PossiblyFalsy = 7406,
         Intrinsic = 16015,
         Primitive = 8190,
-        StringLike = 34,
+        StringLike = 262178,
         NumberLike = 340,
         BooleanLike = 136,
         EnumLike = 272,
@@ -2896,7 +2919,6 @@ declare namespace ts {
         mapper?: TypeMapper;
         resolvedApparentType: Type;
         resolvedIndexType: IndexType;
-        resolvedIndexedAccessTypes: IndexedAccessType[];
         isThisType?: boolean;
     }
     interface IndexType extends Type {
@@ -2904,7 +2926,7 @@ declare namespace ts {
     }
     interface IndexedAccessType extends Type {
         objectType: Type;
-        indexType: TypeParameter;
+        indexType: Type;
     }
     const enum SignatureKind {
         Call = 0,
@@ -3071,8 +3093,9 @@ declare namespace ts {
         watch?: boolean;
         [option: string]: CompilerOptionsValue | undefined;
     }
-    interface TypingOptions {
+    interface TypeAcquisition {
         enableAutoDiscovery?: boolean;
+        enable?: boolean;
         include?: string[];
         exclude?: string[];
         [option: string]: string[] | boolean | undefined;
@@ -3082,7 +3105,7 @@ declare namespace ts {
         projectRootPath: string;
         safeListPath: string;
         packageNameToTypingLocation: Map<string>;
-        typingOptions: TypingOptions;
+        typeAcquisition: TypeAcquisition;
         compilerOptions: CompilerOptions;
         unresolvedImports: ReadonlyArray<string>;
     }
@@ -3133,7 +3156,7 @@ declare namespace ts {
     }
     interface ParsedCommandLine {
         options: CompilerOptions;
-        typingOptions?: TypingOptions;
+        typeAcquisition?: TypeAcquisition;
         fileNames: string[];
         raw?: any;
         errors: Diagnostic[];
@@ -3354,95 +3377,100 @@ declare namespace ts {
         None = 0,
         TypeScript = 1,
         ContainsTypeScript = 2,
-        Jsx = 4,
-        ContainsJsx = 8,
-        ESNext = 16,
-        ContainsESNext = 32,
-        ES2017 = 64,
-        ContainsES2017 = 128,
-        ES2016 = 256,
-        ContainsES2016 = 512,
-        ES2015 = 1024,
-        ContainsES2015 = 2048,
-        Generator = 4096,
-        ContainsGenerator = 8192,
-        DestructuringAssignment = 16384,
-        ContainsDestructuringAssignment = 32768,
-        ContainsDecorators = 65536,
-        ContainsPropertyInitializer = 131072,
-        ContainsLexicalThis = 262144,
-        ContainsCapturedLexicalThis = 524288,
-        ContainsLexicalThisInComputedPropertyName = 1048576,
-        ContainsDefaultValueAssignments = 2097152,
-        ContainsParameterPropertyAssignments = 4194304,
-        ContainsSpreadExpression = 8388608,
-        ContainsComputedPropertyName = 16777216,
-        ContainsBlockScopedBinding = 33554432,
-        ContainsBindingPattern = 67108864,
-        ContainsYield = 134217728,
-        ContainsHoistedDeclarationOrCompletion = 268435456,
+        ContainsJsx = 4,
+        ContainsESNext = 8,
+        ContainsES2017 = 16,
+        ContainsES2016 = 32,
+        ES2015 = 64,
+        ContainsES2015 = 128,
+        Generator = 256,
+        ContainsGenerator = 512,
+        DestructuringAssignment = 1024,
+        ContainsDestructuringAssignment = 2048,
+        ContainsDecorators = 4096,
+        ContainsPropertyInitializer = 8192,
+        ContainsLexicalThis = 16384,
+        ContainsCapturedLexicalThis = 32768,
+        ContainsLexicalThisInComputedPropertyName = 65536,
+        ContainsDefaultValueAssignments = 131072,
+        ContainsParameterPropertyAssignments = 262144,
+        ContainsSpread = 524288,
+        ContainsObjectSpread = 1048576,
+        ContainsRest = 524288,
+        ContainsObjectRest = 1048576,
+        ContainsComputedPropertyName = 2097152,
+        ContainsBlockScopedBinding = 4194304,
+        ContainsBindingPattern = 8388608,
+        ContainsYield = 16777216,
+        ContainsHoistedDeclarationOrCompletion = 33554432,
         HasComputedFlags = 536870912,
         AssertTypeScript = 3,
-        AssertJsx = 12,
-        AssertESNext = 48,
-        AssertES2017 = 192,
-        AssertES2016 = 768,
-        AssertES2015 = 3072,
-        AssertGenerator = 12288,
-        AssertDestructuringAssignment = 49152,
-        NodeExcludes = 536892757,
-        ArrowFunctionExcludes = 979719509,
-        FunctionExcludes = 980243797,
-        ConstructorExcludes = 975983957,
-        MethodOrAccessorExcludes = 975983957,
-        ClassExcludes = 559895893,
-        ModuleExcludes = 839734613,
+        AssertJsx = 4,
+        AssertESNext = 8,
+        AssertES2017 = 16,
+        AssertES2016 = 32,
+        AssertES2015 = 192,
+        AssertGenerator = 768,
+        AssertDestructuringAssignment = 3072,
+        NodeExcludes = 536872257,
+        ArrowFunctionExcludes = 601249089,
+        FunctionExcludes = 601281857,
+        ConstructorExcludes = 601015617,
+        MethodOrAccessorExcludes = 601015617,
+        ClassExcludes = 539358529,
+        ModuleExcludes = 574674241,
         TypeExcludes = -3,
-        ObjectLiteralExcludes = 554784085,
-        ArrayLiteralOrCallOrNewExcludes = 545281365,
-        VariableDeclarationListExcludes = 604001621,
-        ParameterExcludes = 604001621,
-        TypeScriptClassSyntaxMask = 4390912,
-        ES2015FunctionSyntaxMask = 2621440,
+        ObjectLiteralExcludes = 540087617,
+        ArrayLiteralOrCallOrNewExcludes = 537396545,
+        VariableDeclarationListExcludes = 546309441,
+        ParameterExcludes = 536872257,
+        CatchClauseExcludes = 537920833,
+        BindingPatternExcludes = 537396545,
+        TypeScriptClassSyntaxMask = 274432,
+        ES2015FunctionSyntaxMask = 163840,
     }
     interface EmitNode {
+        annotatedNodes?: Node[];
         flags?: EmitFlags;
         commentRange?: TextRange;
         sourceMapRange?: TextRange;
         tokenSourceMapRanges?: Map<TextRange>;
-        annotatedNodes?: Node[];
         constantValue?: number;
+        externalHelpersModuleName?: Identifier;
+        helpers?: EmitHelper[];
     }
     const enum EmitFlags {
-        EmitEmitHelpers = 1,
-        EmitExportStar = 2,
-        EmitSuperHelper = 4,
-        EmitAdvancedSuperHelper = 8,
-        UMDDefine = 16,
-        SingleLine = 32,
-        AdviseOnEmitNode = 64,
-        NoSubstitution = 128,
-        CapturesThis = 256,
-        NoLeadingSourceMap = 512,
-        NoTrailingSourceMap = 1024,
-        NoSourceMap = 1536,
-        NoNestedSourceMaps = 2048,
-        NoTokenLeadingSourceMaps = 4096,
-        NoTokenTrailingSourceMaps = 8192,
-        NoTokenSourceMaps = 12288,
-        NoLeadingComments = 16384,
-        NoTrailingComments = 32768,
-        NoComments = 49152,
-        NoNestedComments = 65536,
-        ExportName = 131072,
-        LocalName = 262144,
-        Indented = 524288,
-        NoIndentation = 1048576,
-        AsyncFunctionBody = 2097152,
-        ReuseTempVariableScope = 4194304,
-        CustomPrologue = 8388608,
-        NoHoisting = 16777216,
-        HasEndOfDeclarationMarker = 33554432,
+        SingleLine = 1,
+        AdviseOnEmitNode = 2,
+        NoSubstitution = 4,
+        CapturesThis = 8,
+        NoLeadingSourceMap = 16,
+        NoTrailingSourceMap = 32,
+        NoSourceMap = 48,
+        NoNestedSourceMaps = 64,
+        NoTokenLeadingSourceMaps = 128,
+        NoTokenTrailingSourceMaps = 256,
+        NoTokenSourceMaps = 384,
+        NoLeadingComments = 512,
+        NoTrailingComments = 1024,
+        NoComments = 1536,
+        NoNestedComments = 2048,
+        HelperName = 4096,
+        ExportName = 8192,
+        LocalName = 16384,
+        Indented = 32768,
+        NoIndentation = 65536,
+        AsyncFunctionBody = 131072,
+        ReuseTempVariableScope = 262144,
+        CustomPrologue = 524288,
+        NoHoisting = 1048576,
+        HasEndOfDeclarationMarker = 2097152,
+    }
+    interface EmitHelper {
+        readonly name: string;
+        readonly scoped: boolean;
+        readonly text: string;
+        readonly priority?: number;
     }
     const enum EmitContext {
         SourceFile = 0,
@@ -3450,10 +3478,40 @@ declare namespace ts {
         IdentifierName = 2,
         Unspecified = 3,
     }
-    interface LexicalEnvironment {
+    interface EmitHost extends ScriptReferenceHost {
+        getSourceFiles(): SourceFile[];
+        isSourceFileFromExternalLibrary(file: SourceFile): boolean;
+        getCommonSourceDirectory(): string;
+        getCanonicalFileName(fileName: string): string;
+        getNewLine(): string;
+        isEmitBlocked(emitFileName: string): boolean;
+        writeFile: WriteFileCallback;
+    }
+    interface TransformationContext {
+        getCompilerOptions(): CompilerOptions;
+        getEmitResolver(): EmitResolver;
+        getEmitHost(): EmitHost;
         startLexicalEnvironment(): void;
+        suspendLexicalEnvironment(): void;
+        resumeLexicalEnvironment(): void;
         endLexicalEnvironment(): Statement[];
+        hoistFunctionDeclaration(node: FunctionDeclaration): void;
+        hoistVariableDeclaration(node: Identifier): void;
+        requestEmitHelper(helper: EmitHelper): void;
+        readEmitHelpers(): EmitHelper[] | undefined;
+        enableSubstitution(kind: SyntaxKind): void;
+        isSubstitutionEnabled(node: Node): boolean;
+        onSubstituteNode?: (emitContext: EmitContext, node: Node) => Node;
+        enableEmitNotification(kind: SyntaxKind): void;
+        isEmitNotificationEnabled(node: Node): boolean;
+        onEmitNode?: (emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void) => void;
     }
+    interface TransformationResult {
+        transformed: SourceFile[];
+        emitNodeWithSubstitution(emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void): void;
+        emitNodeWithNotification(emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void): void;
+    }
+    type Transformer = (context: TransformationContext) => (node: SourceFile) => SourceFile;
     interface TextSpan {
         start: number;
         length: number;
@@ -3486,6 +3544,9 @@ declare namespace ts.performance {
     function disable(): void;
 }
 declare namespace ts {
+    const version = "2.2.0-dev.20161127";
+}
+declare namespace ts {
     const enum Ternary {
         False = 0,
         Maybe = 1,
@@ -3532,6 +3593,7 @@ declare namespace ts {
     function sum(array: any[], prop: string): number;
     function append<T>(to: T[] | undefined, value: T | undefined): T[] | undefined;
     function addRange<T>(to: T[] | undefined, from: T[] | undefined): T[] | undefined;
+    function stableSort<T>(array: T[], comparer?: (x: T, y: T) => Comparison): T[];
     function rangeEquals<T>(array1: T[], array2: T[], pos: number, end: number): boolean;
     function firstOrUndefined<T>(array: T[]): T;
     function lastOrUndefined<T>(array: T[]): T;
@@ -3549,6 +3611,7 @@ declare namespace ts {
     function forEachProperty<T, U>(map: Map<T>, callback: (value: T, key: string) => U): U;
     function someProperties<T>(map: Map<T>, predicate?: (value: T, key: string) => boolean): boolean;
     function copyProperties<T>(source: Map<T>, target: MapLike<T>): void;
+    function appendProperty<T>(map: Map<T>, key: string | number, value: T): Map<T>;
     function assign<T1 extends MapLike<{}>, T2, T3>(t: T1, arg1: T2, arg2: T3): T1 & T2 & T3;
     function assign<T1 extends MapLike<{}>, T2>(t: T1, arg1: T2): T1 & T2;
     function assign<T1 extends MapLike<{}>>(t: T1, ...args: any[]): any;
@@ -3594,6 +3657,7 @@ declare namespace ts {
     function isExternalModuleNameRelative(moduleName: string): boolean;
     function getEmitScriptTarget(compilerOptions: CompilerOptions): ScriptTarget;
     function getEmitModuleKind(compilerOptions: CompilerOptions): ModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions: CompilerOptions): ModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str: string): boolean;
     function isRootedDiskPath(path: string): boolean;
     function convertToRelativePath(absoluteOrRelativePath: string, basePath: string, getCanonicalFileName: (path: string) => string): string;
@@ -3671,6 +3735,7 @@ declare namespace ts {
         function assert(expression: boolean, message?: string, verboseDebugInfo?: () => string): void;
         function fail(message?: string): void;
     }
+    function orderedRemoveItem<T>(array: T[], item: T): boolean;
     function orderedRemoveItemAt<T>(array: T[], index: number): void;
     function unorderedRemoveItemAt<T>(array: T[], index: number): void;
     function unorderedRemoveItem<T>(array: T[], item: T): void;
@@ -6330,7 +6395,7 @@ declare namespace ts {
             key: string;
             message: string;
         };
-        Type_0_is_not_constrained_to_keyof_1: {
+        Type_0_cannot_be_used_to_index_type_1: {
             code: number;
             category: DiagnosticCategory;
             key: string;
@@ -6720,7 +6785,13 @@ declare namespace ts {
             key: string;
             message: string;
         };
-        An_object_rest_element_must_be_an_identifier: {
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: {
+            code: number;
+            category: DiagnosticCategory;
+            key: string;
+            message: string;
+        };
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: {
             code: number;
             category: DiagnosticCategory;
             key: string;
@@ -7146,6 +7217,12 @@ declare namespace ts {
             key: string;
             message: string;
         };
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: {
+            code: number;
+            category: DiagnosticCategory;
+            key: string;
+            message: string;
+        };
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: {
             code: number;
             category: DiagnosticCategory;
@@ -8430,7 +8507,7 @@ declare namespace ts {
             key: string;
             message: string;
         };
-        Unknown_typing_option_0: {
+        Unknown_type_acquisition_option_0: {
             code: number;
             category: DiagnosticCategory;
             key: string;
@@ -8442,7 +8519,7 @@ declare namespace ts {
             key: string;
             message: string;
         };
-        The_path_in_an_extends_options_must_be_relative_or_rooted: {
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: {
             code: number;
             category: DiagnosticCategory;
             key: string;
@@ -8514,6 +8591,24 @@ declare namespace ts {
             key: string;
             message: string;
         };
+        Import_0_from_1: {
+            code: number;
+            category: DiagnosticCategory;
+            key: string;
+            message: string;
+        };
+        Change_0_to_1: {
+            code: number;
+            category: DiagnosticCategory;
+            key: string;
+            message: string;
+        };
+        Add_0_to_existing_import_declaration_from_1: {
+            code: number;
+            category: DiagnosticCategory;
+            key: string;
+            message: string;
+        };
     };
 }
 declare namespace ts {
@@ -8585,12 +8680,13 @@ declare namespace ts {
 declare namespace ts {
     const compileOnSaveCommandLineOption: CommandLineOption;
     const optionDeclarations: CommandLineOption[];
-    let typingOptionDeclarations: CommandLineOption[];
+    let typeAcquisitionDeclarations: CommandLineOption[];
     interface OptionNameMap {
         optionNameMap: Map<CommandLineOption>;
         shortOptionNames: Map<string>;
     }
     const defaultInitCompilerOptions: CompilerOptions;
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition: TypeAcquisition): TypeAcquisition;
     function getOptionNameMap(): OptionNameMap;
     function createCompilerDiagnosticForInvalidCustomType(opt: CommandLineOptionOfCustomType): Diagnostic;
     function parseCustomTypeOption(opt: CommandLineOptionOfCustomType, value: string, errors: Diagnostic[]): string | number;
@@ -8613,8 +8709,8 @@ declare namespace ts {
         options: CompilerOptions;
         errors: Diagnostic[];
     };
-    function convertTypingOptionsFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
-        options: TypingOptions;
+    function convertTypeAcquisitionFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
+        options: TypeAcquisition;
         errors: Diagnostic[];
     };
 }
@@ -8626,7 +8722,7 @@ declare namespace ts.JsTyping {
         readDirectory: (rootDir: string, extensions: string[], excludes: string[], includes: string[], depth?: number) => string[];
     }
     const nodeCoreModuleList: ReadonlyArray<string>;
-    function discoverTypings(host: TypingResolutionHost, fileNames: string[], projectRootPath: Path, safeListPath: Path, packageNameToTypingLocation: Map<string>, typingOptions: TypingOptions, unresolvedImports: ReadonlyArray<string>): {
+    function discoverTypings(host: TypingResolutionHost, fileNames: string[], projectRootPath: Path, safeListPath: Path, packageNameToTypingLocation: Map<string>, typeAcquisition: TypeAcquisition, unresolvedImports: ReadonlyArray<string>): {
         cachedTypingPaths: string[];
         newTypingNames: string[];
         filesToWatch: string[];
@@ -8672,7 +8768,7 @@ declare namespace ts.server {
         const Perf: Perf;
         type Types = Err | Info | Perf;
     }
-    function createInstallTypingsRequest(project: Project, typingOptions: TypingOptions, unresolvedImports: SortedReadonlyArray<string>, cachePath?: string): DiscoverTypings;
+    function createInstallTypingsRequest(project: Project, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string>, cachePath?: string): DiscoverTypings;
     namespace Errors {
         function ThrowNoProject(): never;
         function ThrowProjectLanguageServiceDisabled(): never;
@@ -8699,7 +8795,7 @@ declare namespace ts.server {
         files?: string[];
         wildcardDirectories?: Map<WatchDirectoryFlags>;
         compilerOptions?: CompilerOptions;
-        typingOptions?: TypingOptions;
+        typeAcquisition?: TypeAcquisition;
         compileOnSave?: boolean;
     }
     function isInferredProjectName(name: string): boolean;
@@ -8725,6 +8821,7 @@ declare namespace ts.server {
 declare namespace ts {
     function trace(host: ModuleResolutionHost, message: DiagnosticMessage, ...args: any[]): void;
     function isTraceEnabled(compilerOptions: CompilerOptions, host: ModuleResolutionHost): boolean;
+    function moduleHasNonRelativeName(moduleName: string): boolean;
     function getEffectiveTypeRoots(options: CompilerOptions, host: {
         directoryExists?: (directoryName: string) => boolean;
         getCurrentDirectory?: () => string;
@@ -8751,15 +8848,6 @@ declare namespace ts {
     interface StringSymbolWriter extends SymbolWriter {
         string(): string;
     }
-    interface EmitHost extends ScriptReferenceHost {
-        getSourceFiles(): SourceFile[];
-        isSourceFileFromExternalLibrary(file: SourceFile): boolean;
-        getCommonSourceDirectory(): string;
-        getCanonicalFileName(fileName: string): string;
-        getNewLine(): string;
-        isEmitBlocked(emitFileName: string): boolean;
-        writeFile: WriteFileCallback;
-    }
     function getSingleLineStringWriter(): StringSymbolWriter;
     function releaseStringWriter(writer: StringSymbolWriter): void;
     function getFullWidth(node: Node): number;
@@ -8780,7 +8868,7 @@ declare namespace ts {
     function getEndLinePosition(line: number, sourceFile: SourceFile): number;
     function nodeIsMissing(node: Node): boolean;
     function nodeIsPresent(node: Node): boolean;
-    function getTokenPosOfNode(node: Node, sourceFile?: SourceFile, includeJsDocComment?: boolean): number;
+    function getTokenPosOfNode(node: Node, sourceFile?: SourceFile, includeJsDoc?: boolean): number;
     function isJSDocNode(node: Node): boolean;
     function isJSDocTag(node: Node): boolean;
     function getNonDecoratorTokenPosOfNode(node: Node, sourceFile?: SourceFile): number;
@@ -8815,11 +8903,10 @@ declare namespace ts {
     function isConst(node: Node): boolean;
     function isLet(node: Node): boolean;
     function isSuperCall(n: Node): n is SuperCall;
-    function isPrologueDirective(node: Node): boolean;
+    function isPrologueDirective(node: Node): node is PrologueDirective;
     function getLeadingCommentRangesOfNode(node: Node, sourceFileOfNode: SourceFile): CommentRange[];
     function getLeadingCommentRangesOfNodeFromText(node: Node, text: string): CommentRange[];
-    function getJsDocComments(node: Node, sourceFileOfNode: SourceFile): CommentRange[];
-    function getJsDocCommentsFromText(node: Node, text: string): CommentRange[];
+    function getJSDocCommentRanges(node: Node, text: string): CommentRange[];
     let fullTripleSlashReferencePathRegEx: RegExp;
     let fullTripleSlashReferenceTypeReferenceDirectiveRegEx: RegExp;
     let fullTripleSlashAMDReferencePathRegEx: RegExp;
@@ -8868,11 +8955,12 @@ declare namespace ts {
     function isDefaultImport(node: ImportDeclaration | ImportEqualsDeclaration | ExportDeclaration): boolean;
     function hasQuestionToken(node: Node): boolean;
     function isJSDocConstructSignature(node: Node): boolean;
-    function getJSDocComments(node: Node, checkParentVariableStatement: boolean): string[];
-    function getJSDocTypeTag(node: Node): JSDocTypeTag;
+    function getCommentsFromJSDoc(node: Node): string[];
+    function getJSDocParameterTags(param: Node): JSDocParameterTag[];
+    function getJSDocType(node: Node): JSDocType;
+    function getJSDocAugmentsTag(node: Node): JSDocAugmentsTag;
     function getJSDocReturnTag(node: Node): JSDocReturnTag;
     function getJSDocTemplateTag(node: Node): JSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter: ParameterDeclaration): JSDocParameterTag;
     function hasRestParameter(s: SignatureDeclaration): boolean;
     function hasDeclaredRestParameter(s: SignatureDeclaration): boolean;
     function isRestParameter(node: ParameterDeclaration): boolean;
@@ -8901,11 +8989,11 @@ declare namespace ts {
     function isKeyword(token: SyntaxKind): boolean;
     function isTrivia(token: SyntaxKind): boolean;
     function isAsyncFunctionLike(node: Node): boolean;
-    function isStringOrNumericLiteral(kind: SyntaxKind): boolean;
+    function isStringOrNumericLiteral(node: Node): node is StringLiteral | NumericLiteral;
     function hasDynamicName(declaration: Declaration): boolean;
     function isDynamicName(name: DeclarationName): boolean;
     function isWellKnownSymbolSyntactically(node: Expression): boolean;
-    function getPropertyNameForPropertyNameNode(name: DeclarationName): string;
+    function getPropertyNameForPropertyNameNode(name: DeclarationName | ParameterDeclaration): string;
     function getPropertyNameForKnownSymbolName(symbolName: string): string;
     function isESSymbolIdentifier(node: Node): boolean;
     function isPushOrUnshiftIdentifier(node: Identifier): boolean;
@@ -8928,7 +9016,7 @@ declare namespace ts {
     function getExpressionAssociativity(expression: Expression): Associativity;
     function getOperatorAssociativity(kind: SyntaxKind, operator: SyntaxKind, hasArguments?: boolean): Associativity;
     function getExpressionPrecedence(expression: Expression): 0 | 1 | -1 | 2 | 4 | 3 | 16 | 10 | 5 | 6 | 11 | 8 | 19 | 18 | 17 | 15 | 14 | 13 | 12 | 9 | 7;
-    function getOperator(expression: Expression): SyntaxKind.Unknown | SyntaxKind.EndOfFileToken | SyntaxKind.SingleLineCommentTrivia | SyntaxKind.MultiLineCommentTrivia | SyntaxKind.NewLineTrivia | SyntaxKind.WhitespaceTrivia | SyntaxKind.ShebangTrivia | SyntaxKind.ConflictMarkerTrivia | SyntaxKind.NumericLiteral | SyntaxKind.StringLiteral | SyntaxKind.JsxText | SyntaxKind.RegularExpressionLiteral | SyntaxKind.NoSubstitutionTemplateLiteral | SyntaxKind.TemplateHead | SyntaxKind.TemplateMiddle | SyntaxKind.TemplateTail | SyntaxKind.OpenBraceToken | SyntaxKind.CloseBraceToken | SyntaxKind.OpenParenToken | SyntaxKind.CloseParenToken | SyntaxKind.OpenBracketToken | SyntaxKind.CloseBracketToken | SyntaxKind.DotToken | SyntaxKind.DotDotDotToken | SyntaxKind.SemicolonToken | SyntaxKind.CommaToken | SyntaxKind.LessThanToken | SyntaxKind.LessThanSlashToken | SyntaxKind.GreaterThanToken | SyntaxKind.LessThanEqualsToken | SyntaxKind.GreaterThanEqualsToken | SyntaxKind.EqualsEqualsToken | SyntaxKind.ExclamationEqualsToken | SyntaxKind.EqualsEqualsEqualsToken | SyntaxKind.ExclamationEqualsEqualsToken | SyntaxKind.EqualsGreaterThanToken | SyntaxKind.PlusToken | SyntaxKind.MinusToken | SyntaxKind.AsteriskToken | SyntaxKind.AsteriskAsteriskToken | SyntaxKind.SlashToken | SyntaxKind.PercentToken | SyntaxKind.PlusPlusToken | SyntaxKind.MinusMinusToken | SyntaxKind.LessThanLessThanToken | SyntaxKind.GreaterThanGreaterThanToken | SyntaxKind.GreaterThanGreaterThanGreaterThanToken | SyntaxKind.AmpersandToken | SyntaxKind.BarToken | SyntaxKind.CaretToken | SyntaxKind.ExclamationToken | SyntaxKind.TildeToken | SyntaxKind.AmpersandAmpersandToken | SyntaxKind.BarBarToken | SyntaxKind.QuestionToken | SyntaxKind.ColonToken | SyntaxKind.AtToken | SyntaxKind.EqualsToken | SyntaxKind.PlusEqualsToken | SyntaxKind.MinusEqualsToken | SyntaxKind.AsteriskEqualsToken | SyntaxKind.AsteriskAsteriskEqualsToken | SyntaxKind.SlashEqualsToken | SyntaxKind.PercentEqualsToken | SyntaxKind.LessThanLessThanEqualsToken | SyntaxKind.GreaterThanGreaterThanEqualsToken | SyntaxKind.GreaterThanGreaterThanGreaterThanEqualsToken | SyntaxKind.AmpersandEqualsToken | SyntaxKind.BarEqualsToken | SyntaxKind.CaretEqualsToken | SyntaxKind.Identifier | SyntaxKind.BreakKeyword | SyntaxKind.CaseKeyword | SyntaxKind.CatchKeyword | SyntaxKind.ClassKeyword | SyntaxKind.ConstKeyword | SyntaxKind.ContinueKeyword | SyntaxKind.DebuggerKeyword | SyntaxKind.DefaultKeyword | SyntaxKind.DeleteKeyword | SyntaxKind.DoKeyword | SyntaxKind.ElseKeyword | SyntaxKind.EnumKeyword | SyntaxKind.ExportKeyword | SyntaxKind.ExtendsKeyword | SyntaxKind.FalseKeyword | SyntaxKind.FinallyKeyword | SyntaxKind.ForKeyword | SyntaxKind.FunctionKeyword | SyntaxKind.IfKeyword | SyntaxKind.ImportKeyword | SyntaxKind.InKeyword | SyntaxKind.InstanceOfKeyword | SyntaxKind.NewKeyword | SyntaxKind.NullKeyword | SyntaxKind.ReturnKeyword | SyntaxKind.SuperKeyword | SyntaxKind.SwitchKeyword | SyntaxKind.ThisKeyword | SyntaxKind.ThrowKeyword | SyntaxKind.TrueKeyword | SyntaxKind.TryKeyword | SyntaxKind.TypeOfKeyword | SyntaxKind.VarKeyword | SyntaxKind.VoidKeyword | SyntaxKind.WhileKeyword | SyntaxKind.WithKeyword | SyntaxKind.ImplementsKeyword | SyntaxKind.InterfaceKeyword | SyntaxKind.LetKeyword | SyntaxKind.PackageKeyword | SyntaxKind.PrivateKeyword | SyntaxKind.ProtectedKeyword | SyntaxKind.PublicKeyword | SyntaxKind.StaticKeyword | SyntaxKind.YieldKeyword | SyntaxKind.AbstractKeyword | SyntaxKind.AsKeyword | SyntaxKind.AnyKeyword | SyntaxKind.AsyncKeyword | SyntaxKind.AwaitKeyword | SyntaxKind.BooleanKeyword | SyntaxKind.ConstructorKeyword | SyntaxKind.DeclareKeyword | SyntaxKind.GetKeyword | SyntaxKind.IsKeyword | SyntaxKind.KeyOfKeyword | SyntaxKind.ModuleKeyword | SyntaxKind.NamespaceKeyword | SyntaxKind.NeverKeyword | SyntaxKind.ReadonlyKeyword | SyntaxKind.RequireKeyword | SyntaxKind.NumberKeyword | SyntaxKind.SetKeyword | SyntaxKind.StringKeyword | SyntaxKind.SymbolKeyword | SyntaxKind.TypeKeyword | SyntaxKind.UndefinedKeyword | SyntaxKind.FromKeyword | SyntaxKind.GlobalKeyword | SyntaxKind.OfKeyword | SyntaxKind.QualifiedName | SyntaxKind.ComputedPropertyName | SyntaxKind.TypeParameter | SyntaxKind.Parameter | SyntaxKind.Decorator | SyntaxKind.PropertySignature | SyntaxKind.PropertyDeclaration | SyntaxKind.MethodSignature | SyntaxKind.MethodDeclaration | SyntaxKind.Constructor | SyntaxKind.GetAccessor | SyntaxKind.SetAccessor | SyntaxKind.CallSignature | SyntaxKind.ConstructSignature | SyntaxKind.IndexSignature | SyntaxKind.TypePredicate | SyntaxKind.TypeReference | SyntaxKind.FunctionType | SyntaxKind.ConstructorType | SyntaxKind.TypeQuery | SyntaxKind.TypeLiteral | SyntaxKind.ArrayType | SyntaxKind.TupleType | SyntaxKind.UnionType | SyntaxKind.IntersectionType | SyntaxKind.ParenthesizedType | SyntaxKind.ThisType | SyntaxKind.TypeOperator | SyntaxKind.IndexedAccessType | SyntaxKind.MappedType | SyntaxKind.LiteralType | SyntaxKind.ObjectBindingPattern | SyntaxKind.ArrayBindingPattern | SyntaxKind.BindingElement | SyntaxKind.ArrayLiteralExpression | SyntaxKind.ObjectLiteralExpression | SyntaxKind.PropertyAccessExpression | SyntaxKind.ElementAccessExpression | SyntaxKind.CallExpression | SyntaxKind.NewExpression | SyntaxKind.TaggedTemplateExpression | SyntaxKind.TypeAssertionExpression | SyntaxKind.ParenthesizedExpression | SyntaxKind.FunctionExpression | SyntaxKind.ArrowFunction | SyntaxKind.DeleteExpression | SyntaxKind.TypeOfExpression | SyntaxKind.VoidExpression | SyntaxKind.AwaitExpression | SyntaxKind.ConditionalExpression | SyntaxKind.TemplateExpression | SyntaxKind.YieldExpression | SyntaxKind.SpreadElement | SyntaxKind.ClassExpression | SyntaxKind.OmittedExpression | SyntaxKind.ExpressionWithTypeArguments | SyntaxKind.AsExpression | SyntaxKind.NonNullExpression | SyntaxKind.TemplateSpan | SyntaxKind.SemicolonClassElement | SyntaxKind.Block | SyntaxKind.VariableStatement | SyntaxKind.EmptyStatement | SyntaxKind.ExpressionStatement | SyntaxKind.IfStatement | SyntaxKind.DoStatement | SyntaxKind.WhileStatement | SyntaxKind.ForStatement | SyntaxKind.ForInStatement | SyntaxKind.ForOfStatement | SyntaxKind.ContinueStatement | SyntaxKind.BreakStatement | SyntaxKind.ReturnStatement | SyntaxKind.WithStatement | SyntaxKind.SwitchStatement | SyntaxKind.LabeledStatement | SyntaxKind.ThrowStatement | SyntaxKind.TryStatement | SyntaxKind.DebuggerStatement | SyntaxKind.VariableDeclaration | SyntaxKind.VariableDeclarationList | SyntaxKind.FunctionDeclaration | SyntaxKind.ClassDeclaration | SyntaxKind.InterfaceDeclaration | SyntaxKind.TypeAliasDeclaration | SyntaxKind.EnumDeclaration | SyntaxKind.ModuleDeclaration | SyntaxKind.ModuleBlock | SyntaxKind.CaseBlock | SyntaxKind.NamespaceExportDeclaration | SyntaxKind.ImportEqualsDeclaration | SyntaxKind.ImportDeclaration | SyntaxKind.ImportClause | SyntaxKind.NamespaceImport | SyntaxKind.NamedImports | SyntaxKind.ImportSpecifier | SyntaxKind.ExportAssignment | SyntaxKind.ExportDeclaration | SyntaxKind.NamedExports | SyntaxKind.ExportSpecifier | SyntaxKind.MissingDeclaration | SyntaxKind.ExternalModuleReference | SyntaxKind.JsxElement | SyntaxKind.JsxSelfClosingElement | SyntaxKind.JsxOpeningElement | SyntaxKind.JsxClosingElement | SyntaxKind.JsxAttribute | SyntaxKind.JsxSpreadAttribute | SyntaxKind.JsxExpression | SyntaxKind.CaseClause | SyntaxKind.DefaultClause | SyntaxKind.HeritageClause | SyntaxKind.CatchClause | SyntaxKind.PropertyAssignment | SyntaxKind.ShorthandPropertyAssignment | SyntaxKind.SpreadAssignment | SyntaxKind.EnumMember | SyntaxKind.SourceFile | SyntaxKind.JSDocTypeExpression | SyntaxKind.JSDocAllType | SyntaxKind.JSDocUnknownType | SyntaxKind.JSDocArrayType | SyntaxKind.JSDocUnionType | SyntaxKind.JSDocTupleType | SyntaxKind.JSDocNullableType | SyntaxKind.JSDocNonNullableType | SyntaxKind.JSDocRecordType | SyntaxKind.JSDocRecordMember | SyntaxKind.JSDocTypeReference | SyntaxKind.JSDocOptionalType | SyntaxKind.JSDocFunctionType | SyntaxKind.JSDocVariadicType | SyntaxKind.JSDocConstructorType | SyntaxKind.JSDocThisType | SyntaxKind.JSDocComment | SyntaxKind.JSDocTag | SyntaxKind.JSDocParameterTag | SyntaxKind.JSDocReturnTag | SyntaxKind.JSDocTypeTag | SyntaxKind.JSDocTemplateTag | SyntaxKind.JSDocTypedefTag | SyntaxKind.JSDocPropertyTag | SyntaxKind.JSDocTypeLiteral | SyntaxKind.JSDocLiteralType | SyntaxKind.JSDocNullKeyword | SyntaxKind.JSDocUndefinedKeyword | SyntaxKind.JSDocNeverKeyword | SyntaxKind.SyntaxList | SyntaxKind.NotEmittedStatement | SyntaxKind.PartiallyEmittedExpression | SyntaxKind.MergeDeclarationMarker | SyntaxKind.EndOfDeclarationMarker | SyntaxKind.Count;
+    function getOperator(expression: Expression): SyntaxKind.Unknown | SyntaxKind.EndOfFileToken | SyntaxKind.SingleLineCommentTrivia | SyntaxKind.MultiLineCommentTrivia | SyntaxKind.NewLineTrivia | SyntaxKind.WhitespaceTrivia | SyntaxKind.ShebangTrivia | SyntaxKind.ConflictMarkerTrivia | SyntaxKind.NumericLiteral | SyntaxKind.StringLiteral | SyntaxKind.JsxText | SyntaxKind.RegularExpressionLiteral | SyntaxKind.NoSubstitutionTemplateLiteral | SyntaxKind.TemplateHead | SyntaxKind.TemplateMiddle | SyntaxKind.TemplateTail | SyntaxKind.OpenBraceToken | SyntaxKind.CloseBraceToken | SyntaxKind.OpenParenToken | SyntaxKind.CloseParenToken | SyntaxKind.OpenBracketToken | SyntaxKind.CloseBracketToken | SyntaxKind.DotToken | SyntaxKind.DotDotDotToken | SyntaxKind.SemicolonToken | SyntaxKind.CommaToken | SyntaxKind.LessThanToken | SyntaxKind.LessThanSlashToken | SyntaxKind.GreaterThanToken | SyntaxKind.LessThanEqualsToken | SyntaxKind.GreaterThanEqualsToken | SyntaxKind.EqualsEqualsToken | SyntaxKind.ExclamationEqualsToken | SyntaxKind.EqualsEqualsEqualsToken | SyntaxKind.ExclamationEqualsEqualsToken | SyntaxKind.EqualsGreaterThanToken | SyntaxKind.PlusToken | SyntaxKind.MinusToken | SyntaxKind.AsteriskToken | SyntaxKind.AsteriskAsteriskToken | SyntaxKind.SlashToken | SyntaxKind.PercentToken | SyntaxKind.PlusPlusToken | SyntaxKind.MinusMinusToken | SyntaxKind.LessThanLessThanToken | SyntaxKind.GreaterThanGreaterThanToken | SyntaxKind.GreaterThanGreaterThanGreaterThanToken | SyntaxKind.AmpersandToken | SyntaxKind.BarToken | SyntaxKind.CaretToken | SyntaxKind.ExclamationToken | SyntaxKind.TildeToken | SyntaxKind.AmpersandAmpersandToken | SyntaxKind.BarBarToken | SyntaxKind.QuestionToken | SyntaxKind.ColonToken | SyntaxKind.AtToken | SyntaxKind.EqualsToken | SyntaxKind.PlusEqualsToken | SyntaxKind.MinusEqualsToken | SyntaxKind.AsteriskEqualsToken | SyntaxKind.AsteriskAsteriskEqualsToken | SyntaxKind.SlashEqualsToken | SyntaxKind.PercentEqualsToken | SyntaxKind.LessThanLessThanEqualsToken | SyntaxKind.GreaterThanGreaterThanEqualsToken | SyntaxKind.GreaterThanGreaterThanGreaterThanEqualsToken | SyntaxKind.AmpersandEqualsToken | SyntaxKind.BarEqualsToken | SyntaxKind.CaretEqualsToken | SyntaxKind.Identifier | SyntaxKind.BreakKeyword | SyntaxKind.CaseKeyword | SyntaxKind.CatchKeyword | SyntaxKind.ClassKeyword | SyntaxKind.ConstKeyword | SyntaxKind.ContinueKeyword | SyntaxKind.DebuggerKeyword | SyntaxKind.DefaultKeyword | SyntaxKind.DeleteKeyword | SyntaxKind.DoKeyword | SyntaxKind.ElseKeyword | SyntaxKind.EnumKeyword | SyntaxKind.ExportKeyword | SyntaxKind.ExtendsKeyword | SyntaxKind.FalseKeyword | SyntaxKind.FinallyKeyword | SyntaxKind.ForKeyword | SyntaxKind.FunctionKeyword | SyntaxKind.IfKeyword | SyntaxKind.ImportKeyword | SyntaxKind.InKeyword | SyntaxKind.InstanceOfKeyword | SyntaxKind.NewKeyword | SyntaxKind.NullKeyword | SyntaxKind.ReturnKeyword | SyntaxKind.SuperKeyword | SyntaxKind.SwitchKeyword | SyntaxKind.ThisKeyword | SyntaxKind.ThrowKeyword | SyntaxKind.TrueKeyword | SyntaxKind.TryKeyword | SyntaxKind.TypeOfKeyword | SyntaxKind.VarKeyword | SyntaxKind.VoidKeyword | SyntaxKind.WhileKeyword | SyntaxKind.WithKeyword | SyntaxKind.ImplementsKeyword | SyntaxKind.InterfaceKeyword | SyntaxKind.LetKeyword | SyntaxKind.PackageKeyword | SyntaxKind.PrivateKeyword | SyntaxKind.ProtectedKeyword | SyntaxKind.PublicKeyword | SyntaxKind.StaticKeyword | SyntaxKind.YieldKeyword | SyntaxKind.AbstractKeyword | SyntaxKind.AsKeyword | SyntaxKind.AnyKeyword | SyntaxKind.AsyncKeyword | SyntaxKind.AwaitKeyword | SyntaxKind.BooleanKeyword | SyntaxKind.ConstructorKeyword | SyntaxKind.DeclareKeyword | SyntaxKind.GetKeyword | SyntaxKind.IsKeyword | SyntaxKind.KeyOfKeyword | SyntaxKind.ModuleKeyword | SyntaxKind.NamespaceKeyword | SyntaxKind.NeverKeyword | SyntaxKind.ReadonlyKeyword | SyntaxKind.RequireKeyword | SyntaxKind.NumberKeyword | SyntaxKind.SetKeyword | SyntaxKind.StringKeyword | SyntaxKind.SymbolKeyword | SyntaxKind.TypeKeyword | SyntaxKind.UndefinedKeyword | SyntaxKind.FromKeyword | SyntaxKind.GlobalKeyword | SyntaxKind.OfKeyword | SyntaxKind.QualifiedName | SyntaxKind.ComputedPropertyName | SyntaxKind.TypeParameter | SyntaxKind.Parameter | SyntaxKind.Decorator | SyntaxKind.PropertySignature | SyntaxKind.PropertyDeclaration | SyntaxKind.MethodSignature | SyntaxKind.MethodDeclaration | SyntaxKind.Constructor | SyntaxKind.GetAccessor | SyntaxKind.SetAccessor | SyntaxKind.CallSignature | SyntaxKind.ConstructSignature | SyntaxKind.IndexSignature | SyntaxKind.TypePredicate | SyntaxKind.TypeReference | SyntaxKind.FunctionType | SyntaxKind.ConstructorType | SyntaxKind.TypeQuery | SyntaxKind.TypeLiteral | SyntaxKind.ArrayType | SyntaxKind.TupleType | SyntaxKind.UnionType | SyntaxKind.IntersectionType | SyntaxKind.ParenthesizedType | SyntaxKind.ThisType | SyntaxKind.TypeOperator | SyntaxKind.IndexedAccessType | SyntaxKind.MappedType | SyntaxKind.LiteralType | SyntaxKind.ObjectBindingPattern | SyntaxKind.ArrayBindingPattern | SyntaxKind.BindingElement | SyntaxKind.ArrayLiteralExpression | SyntaxKind.ObjectLiteralExpression | SyntaxKind.PropertyAccessExpression | SyntaxKind.ElementAccessExpression | SyntaxKind.CallExpression | SyntaxKind.NewExpression | SyntaxKind.TaggedTemplateExpression | SyntaxKind.TypeAssertionExpression | SyntaxKind.ParenthesizedExpression | SyntaxKind.FunctionExpression | SyntaxKind.ArrowFunction | SyntaxKind.DeleteExpression | SyntaxKind.TypeOfExpression | SyntaxKind.VoidExpression | SyntaxKind.AwaitExpression | SyntaxKind.ConditionalExpression | SyntaxKind.TemplateExpression | SyntaxKind.YieldExpression | SyntaxKind.SpreadElement | SyntaxKind.ClassExpression | SyntaxKind.OmittedExpression | SyntaxKind.ExpressionWithTypeArguments | SyntaxKind.AsExpression | SyntaxKind.NonNullExpression | SyntaxKind.TemplateSpan | SyntaxKind.SemicolonClassElement | SyntaxKind.Block | SyntaxKind.VariableStatement | SyntaxKind.EmptyStatement | SyntaxKind.ExpressionStatement | SyntaxKind.IfStatement | SyntaxKind.DoStatement | SyntaxKind.WhileStatement | SyntaxKind.ForStatement | SyntaxKind.ForInStatement | SyntaxKind.ForOfStatement | SyntaxKind.ContinueStatement | SyntaxKind.BreakStatement | SyntaxKind.ReturnStatement | SyntaxKind.WithStatement | SyntaxKind.SwitchStatement | SyntaxKind.LabeledStatement | SyntaxKind.ThrowStatement | SyntaxKind.TryStatement | SyntaxKind.DebuggerStatement | SyntaxKind.VariableDeclaration | SyntaxKind.VariableDeclarationList | SyntaxKind.FunctionDeclaration | SyntaxKind.ClassDeclaration | SyntaxKind.InterfaceDeclaration | SyntaxKind.TypeAliasDeclaration | SyntaxKind.EnumDeclaration | SyntaxKind.ModuleDeclaration | SyntaxKind.ModuleBlock | SyntaxKind.CaseBlock | SyntaxKind.NamespaceExportDeclaration | SyntaxKind.ImportEqualsDeclaration | SyntaxKind.ImportDeclaration | SyntaxKind.ImportClause | SyntaxKind.NamespaceImport | SyntaxKind.NamedImports | SyntaxKind.ImportSpecifier | SyntaxKind.ExportAssignment | SyntaxKind.ExportDeclaration | SyntaxKind.NamedExports | SyntaxKind.ExportSpecifier | SyntaxKind.MissingDeclaration | SyntaxKind.ExternalModuleReference | SyntaxKind.JsxElement | SyntaxKind.JsxSelfClosingElement | SyntaxKind.JsxOpeningElement | SyntaxKind.JsxClosingElement | SyntaxKind.JsxAttribute | SyntaxKind.JsxSpreadAttribute | SyntaxKind.JsxExpression | SyntaxKind.CaseClause | SyntaxKind.DefaultClause | SyntaxKind.HeritageClause | SyntaxKind.CatchClause | SyntaxKind.PropertyAssignment | SyntaxKind.ShorthandPropertyAssignment | SyntaxKind.SpreadAssignment | SyntaxKind.EnumMember | SyntaxKind.SourceFile | SyntaxKind.JSDocTypeExpression | SyntaxKind.JSDocAllType | SyntaxKind.JSDocUnknownType | SyntaxKind.JSDocArrayType | SyntaxKind.JSDocUnionType | SyntaxKind.JSDocTupleType | SyntaxKind.JSDocNullableType | SyntaxKind.JSDocNonNullableType | SyntaxKind.JSDocRecordType | SyntaxKind.JSDocRecordMember | SyntaxKind.JSDocTypeReference | SyntaxKind.JSDocOptionalType | SyntaxKind.JSDocFunctionType | SyntaxKind.JSDocVariadicType | SyntaxKind.JSDocConstructorType | SyntaxKind.JSDocThisType | SyntaxKind.JSDocComment | SyntaxKind.JSDocTag | SyntaxKind.JSDocAugmentsTag | SyntaxKind.JSDocParameterTag | SyntaxKind.JSDocReturnTag | SyntaxKind.JSDocTypeTag | SyntaxKind.JSDocTemplateTag | SyntaxKind.JSDocTypedefTag | SyntaxKind.JSDocPropertyTag | SyntaxKind.JSDocTypeLiteral | SyntaxKind.JSDocLiteralType | SyntaxKind.JSDocNullKeyword | SyntaxKind.JSDocUndefinedKeyword | SyntaxKind.JSDocNeverKeyword | SyntaxKind.SyntaxList | SyntaxKind.NotEmittedStatement | SyntaxKind.PartiallyEmittedExpression | SyntaxKind.MergeDeclarationMarker | SyntaxKind.EndOfDeclarationMarker | SyntaxKind.RawExpression | SyntaxKind.Count;
     function getOperatorPrecedence(nodeKind: SyntaxKind, operatorKind: SyntaxKind, hasArguments?: boolean): 0 | 1 | -1 | 2 | 4 | 3 | 16 | 10 | 5 | 6 | 11 | 8 | 19 | 18 | 17 | 15 | 14 | 13 | 12 | 9 | 7;
     function createDiagnosticCollection(): DiagnosticCollection;
     function escapeString(s: string): string;
@@ -9000,7 +9088,8 @@ declare namespace ts {
     function isLogicalOperator(token: SyntaxKind): boolean;
     function isAssignmentOperator(token: SyntaxKind): boolean;
     function tryGetClassExtendingExpressionWithTypeArguments(node: Node): ClassLikeDeclaration | undefined;
-    function isAssignmentExpression(node: Node): node is AssignmentExpression;
+    function isAssignmentExpression(node: Node, excludeCompoundAssignment: true): node is AssignmentExpression<EqualsToken>;
+    function isAssignmentExpression(node: Node, excludeCompoundAssignment?: false): node is AssignmentExpression<AssignmentOperatorToken>;
     function isDestructuringAssignment(node: Node): node is DestructuringAssignment;
     function isSupportedExpressionWithTypeArguments(node: ExpressionWithTypeArguments): boolean;
     function isExpressionWithTypeArgumentsInClassExtendsClause(node: Node): boolean;
@@ -9031,15 +9120,6 @@ declare namespace ts {
     function rangeEndIsOnSameLineAsRangeStart(range1: TextRange, range2: TextRange, sourceFile: SourceFile): boolean;
     function positionsAreOnSameLine(pos1: number, pos2: number, sourceFile: SourceFile): boolean;
     function getStartPositionOfRange(range: TextRange, sourceFile: SourceFile): number;
-    interface ExternalModuleInfo {
-        externalImports: (ImportDeclaration | ImportEqualsDeclaration | ExportDeclaration)[];
-        exportSpecifiers: Map<ExportSpecifier[]>;
-        exportedBindings: Map<Identifier[]>;
-        exportedNames: Identifier[];
-        exportEquals: ExportAssignment | undefined;
-        hasExportStarsToExportValues: boolean;
-    }
-    function collectExternalModuleInfo(sourceFile: SourceFile, resolver: EmitResolver): ExternalModuleInfo;
     function isDeclarationNameOfEnumOrNamespace(node: Identifier): boolean;
     function getInitializedVariables(node: VariableDeclarationList): VariableDeclaration[];
     function isMergedWithClass(node: Node): boolean;
@@ -9068,9 +9148,16 @@ declare namespace ts {
     function isClassElement(node: Node): node is ClassElement;
     function isObjectLiteralElementLike(node: Node): node is ObjectLiteralElementLike;
     function isTypeNode(node: Node): node is TypeNode;
+    function isArrayBindingPattern(node: Node): node is ArrayBindingPattern;
+    function isObjectBindingPattern(node: Node): node is ObjectBindingPattern;
     function isBindingPattern(node: Node): node is BindingPattern;
+    function isAssignmentPattern(node: Node): node is AssignmentPattern;
     function isBindingElement(node: Node): node is BindingElement;
     function isArrayBindingElement(node: Node): node is ArrayBindingElement;
+    function isDeclarationBindingElement(bindingElement: BindingOrAssignmentElement): bindingElement is VariableDeclaration | ParameterDeclaration | BindingElement;
+    function isBindingOrAssignmentPattern(node: BindingOrAssignmentElementTarget): node is BindingOrAssignmentPattern;
+    function isObjectBindingOrAssignmentPattern(node: BindingOrAssignmentElementTarget): node is ObjectBindingOrAssignmentPattern;
+    function isArrayBindingOrAssignmentPattern(node: BindingOrAssignmentElementTarget): node is ArrayBindingOrAssignmentPattern;
     function isArrayLiteralExpression(node: Node): node is ArrayLiteralExpression;
     function isObjectLiteralExpression(node: Node): node is ObjectLiteralExpression;
     function isPropertyAccessExpression(node: Node): node is PropertyAccessExpression;
@@ -9148,9 +9235,15 @@ declare namespace ts {
     let unchangedTextChangeRange: TextChangeRange;
     function collapseTextChangeRangesAcrossMultipleVersions(changes: TextChangeRange[]): TextChangeRange;
     function getTypeParameterOwner(d: Declaration): Declaration;
-    function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean;
+    function isParameterPropertyDeclaration(node: Node): boolean;
     function getCombinedModifierFlags(node: Node): ModifierFlags;
     function getCombinedNodeFlags(node: Node): NodeFlags;
+    function validateLocaleAndSetLanguage(locale: string, sys: {
+        getExecutingFilePath(): string;
+        resolvePath(path: string): string;
+        fileExists(fileName: string): boolean;
+        readFile(fileName: string): string;
+    }, errors?: Diagnostic[]): void;
 }
 declare namespace ts {
     function updateNode<T extends Node>(updated: T, original: T): T;
@@ -9159,7 +9252,7 @@ declare namespace ts {
     function createSynthesizedNodeArray<T extends Node>(elements?: T[]): NodeArray<T>;
     function getSynthesizedClone<T extends Node>(node: T): T;
     function getMutableClone<T extends Node>(node: T): T;
-    function createLiteral(textSource: StringLiteral | Identifier, location?: TextRange): StringLiteral;
+    function createLiteral(textSource: StringLiteral | NumericLiteral | Identifier, location?: TextRange): StringLiteral;
     function createLiteral(value: string, location?: TextRange): StringLiteral;
     function createLiteral(value: number, location?: TextRange): NumericLiteral;
     function createLiteral(value: boolean, location?: TextRange): BooleanLiteral;
@@ -9176,7 +9269,7 @@ declare namespace ts {
     function createComputedPropertyName(expression: Expression, location?: TextRange): ComputedPropertyName;
     function updateComputedPropertyName(node: ComputedPropertyName, expression: Expression): ComputedPropertyName;
     function createParameter(decorators: Decorator[], modifiers: Modifier[], dotDotDotToken: DotDotDotToken, name: string | Identifier | BindingPattern, questionToken?: QuestionToken, type?: TypeNode, initializer?: Expression, location?: TextRange, flags?: NodeFlags): ParameterDeclaration;
-    function updateParameter(node: ParameterDeclaration, decorators: Decorator[], modifiers: Modifier[], name: BindingName, type: TypeNode, initializer: Expression): ParameterDeclaration;
+    function updateParameter(node: ParameterDeclaration, decorators: Decorator[], modifiers: Modifier[], dotDotDotToken: DotDotDotToken, name: BindingName, type: TypeNode, initializer: Expression): ParameterDeclaration;
     function createProperty(decorators: Decorator[], modifiers: Modifier[], name: string | PropertyName, questionToken: QuestionToken, type: TypeNode, initializer: Expression, location?: TextRange): PropertyDeclaration;
     function updateProperty(node: PropertyDeclaration, decorators: Decorator[], modifiers: Modifier[], name: PropertyName, type: TypeNode, initializer: Expression): PropertyDeclaration;
     function createMethod(decorators: Decorator[], modifiers: Modifier[], asteriskToken: AsteriskToken, name: string | PropertyName, typeParameters: TypeParameterDeclaration[], parameters: ParameterDeclaration[], type: TypeNode, body: Block, location?: TextRange, flags?: NodeFlags): MethodDeclaration;
@@ -9192,7 +9285,7 @@ declare namespace ts {
     function createArrayBindingPattern(elements: ArrayBindingElement[], location?: TextRange): ArrayBindingPattern;
     function updateArrayBindingPattern(node: ArrayBindingPattern, elements: ArrayBindingElement[]): ArrayBindingPattern;
     function createBindingElement(propertyName: string | PropertyName, dotDotDotToken: DotDotDotToken, name: string | BindingName, initializer?: Expression, location?: TextRange): BindingElement;
-    function updateBindingElement(node: BindingElement, propertyName: PropertyName, name: BindingName, initializer: Expression): BindingElement;
+    function updateBindingElement(node: BindingElement, dotDotDotToken: DotDotDotToken, propertyName: PropertyName, name: BindingName, initializer: Expression): BindingElement;
     function createArrayLiteral(elements?: Expression[], location?: TextRange, multiLine?: boolean): ArrayLiteralExpression;
     function updateArrayLiteral(node: ArrayLiteralExpression, elements: Expression[]): ArrayLiteralExpression;
     function createObjectLiteral(properties?: ObjectLiteralElementLike[], location?: TextRange, multiLine?: boolean): ObjectLiteralExpression;
@@ -9227,6 +9320,7 @@ declare namespace ts {
     function updatePostfix(node: PostfixUnaryExpression, operand: Expression): PostfixUnaryExpression;
     function createBinary(left: Expression, operator: BinaryOperator | BinaryOperatorToken, right: Expression, location?: TextRange): BinaryExpression;
     function updateBinary(node: BinaryExpression, left: Expression, right: Expression): BinaryExpression;
+    function createConditional(condition: Expression, whenTrue: Expression, whenFalse: Expression, location?: TextRange): ConditionalExpression;
     function createConditional(condition: Expression, questionToken: QuestionToken, whenTrue: Expression, colonToken: ColonToken, whenFalse: Expression, location?: TextRange): ConditionalExpression;
     function updateConditional(node: ConditionalExpression, condition: Expression, whenTrue: Expression, whenFalse: Expression): ConditionalExpression;
     function createTemplateExpression(head: TemplateHead, templateSpans: TemplateSpan[], location?: TextRange): TemplateExpression;
@@ -9339,8 +9433,10 @@ declare namespace ts {
     function createMergeDeclarationMarker(original: Node): MergeDeclarationMarker;
     function createPartiallyEmittedExpression(expression: Expression, original?: Node, location?: TextRange): PartiallyEmittedExpression;
     function updatePartiallyEmittedExpression(node: PartiallyEmittedExpression, expression: Expression): PartiallyEmittedExpression;
+    function createRawExpression(text: string): RawExpression;
     function createComma(left: Expression, right: Expression): Expression;
     function createLessThan(left: Expression, right: Expression, location?: TextRange): Expression;
+    function createAssignment(left: ObjectLiteralExpression | ArrayLiteralExpression, right: Expression, location?: TextRange): DestructuringAssignment;
     function createAssignment(left: Expression, right: Expression, location?: TextRange): BinaryExpression;
     function createStrictEquality(left: Expression, right: Expression): BinaryExpression;
     function createStrictInequality(left: Expression, right: Expression): BinaryExpression;
@@ -9351,6 +9447,8 @@ declare namespace ts {
     function createLogicalOr(left: Expression, right: Expression): BinaryExpression;
     function createLogicalNot(operand: Expression): PrefixUnaryExpression;
     function createVoidZero(): VoidExpression;
+    type TypeOfTag = "undefined" | "number" | "boolean" | "string" | "symbol" | "object" | "function";
+    function createTypeCheck(value: Expression, tag: TypeOfTag): BinaryExpression;
     function createMemberAccessForPropertyName(target: Expression, memberName: PropertyName, location?: TextRange): MemberExpression;
     function createFunctionCall(func: Expression, thisArg: Expression, argumentsList: Expression[], location?: TextRange): CallExpression;
     function createFunctionApply(func: Expression, thisArg: Expression, argumentsExpression: Expression, location?: TextRange): CallExpression;
@@ -9363,16 +9461,7 @@ declare namespace ts {
     function createLetStatement(name: Identifier, initializer: Expression, location?: TextRange): VariableStatement;
     function createLetDeclarationList(declarations: VariableDeclaration[], location?: TextRange): VariableDeclarationList;
     function createConstDeclarationList(declarations: VariableDeclaration[], location?: TextRange): VariableDeclarationList;
-    function createHelperName(externalHelpersModuleName: Identifier | undefined, name: string): Identifier | PropertyAccessExpression;
-    function createExtendsHelper(externalHelpersModuleName: Identifier | undefined, name: Identifier): CallExpression;
-    function createAssignHelper(externalHelpersModuleName: Identifier | undefined, attributesSegments: Expression[]): CallExpression;
-    function createParamHelper(externalHelpersModuleName: Identifier | undefined, expression: Expression, parameterOffset: number, location?: TextRange): CallExpression;
-    function createMetadataHelper(externalHelpersModuleName: Identifier | undefined, metadataKey: string, metadataValue: Expression): CallExpression;
-    function createDecorateHelper(externalHelpersModuleName: Identifier | undefined, decoratorExpressions: Expression[], target: Expression, memberName?: Expression, descriptor?: Expression, location?: TextRange): CallExpression;
-    function createAwaiterHelper(externalHelpersModuleName: Identifier | undefined, hasLexicalArguments: boolean, promiseConstructor: EntityName | Expression, body: Block): CallExpression;
-    function createHasOwnProperty(target: LeftHandSideExpression, propertyName: Expression): CallExpression;
-    function createAdvancedAsyncSuperHelper(): VariableStatement;
-    function createSimpleAsyncSuperHelper(): VariableStatement;
+    function getHelperName(name: string): Identifier;
     interface CallBinding {
         target: LeftHandSideExpression;
         thisArg: Expression;
@@ -9389,9 +9478,12 @@ declare namespace ts {
     function getDeclarationName(node: Declaration, allowComments?: boolean, allowSourceMaps?: boolean): Identifier;
     function getExternalModuleOrNamespaceExportName(ns: Identifier | undefined, node: Declaration, allowComments?: boolean, allowSourceMaps?: boolean): Identifier | PropertyAccessExpression;
     function getNamespaceMemberName(ns: Identifier, name: Identifier, allowComments?: boolean, allowSourceMaps?: boolean): PropertyAccessExpression;
+    function convertToFunctionBody(node: ConciseBody, multiLine?: boolean): Block;
     function addPrologueDirectives(target: Statement[], source: Statement[], ensureUseStrict?: boolean, visitor?: (node: Node) => VisitResult<Node>): number;
-    function ensureUseStrict(node: SourceFile): SourceFile;
+    function startsWithUseStrict(statements: Statement[]): boolean;
+    function ensureUseStrict(statements: NodeArray<Statement>): NodeArray<Statement>;
     function parenthesizeBinaryOperand(binaryOperator: SyntaxKind, operand: Expression, isLeftSideOfBinary: boolean, leftOperand?: Expression): Expression;
+    function parenthesizeForConditionalHead(condition: Expression): Expression;
     function parenthesizeForNew(expression: Expression): LeftHandSideExpression;
     function parenthesizeForAccess(expression: Expression): LeftHandSideExpression;
     function parenthesizePostfixOperand(operand: Expression): LeftHandSideExpression;
@@ -9416,16 +9508,25 @@ declare namespace ts {
     function startOnNewLine<T extends Node>(node: T): T;
     function setOriginalNode<T extends Node>(node: T, original: Node): T;
     function disposeEmitNodes(sourceFile: SourceFile): void;
+    function getOrCreateEmitNode(node: Node): EmitNode;
     function getEmitFlags(node: Node): EmitFlags;
     function setEmitFlags<T extends Node>(node: T, emitFlags: EmitFlags): T;
+    function getSourceMapRange(node: Node): TextRange;
     function setSourceMapRange<T extends Node>(node: T, range: TextRange): T;
+    function getTokenSourceMapRange(node: Node, token: SyntaxKind): TextRange;
     function setTokenSourceMapRange<T extends Node>(node: T, token: SyntaxKind, range: TextRange): T;
-    function setCommentRange<T extends Node>(node: T, range: TextRange): T;
     function getCommentRange(node: Node): TextRange;
-    function getSourceMapRange(node: Node): TextRange;
-    function getTokenSourceMapRange(node: Node, token: SyntaxKind): TextRange;
+    function setCommentRange<T extends Node>(node: T, range: TextRange): T;
     function getConstantValue(node: PropertyAccessExpression | ElementAccessExpression): number;
     function setConstantValue(node: PropertyAccessExpression | ElementAccessExpression, value: number): PropertyAccessExpression | ElementAccessExpression;
+    function getExternalHelpersModuleName(node: SourceFile): Identifier;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node: SourceFile, compilerOptions: CompilerOptions): Identifier;
+    function addEmitHelper<T extends Node>(node: T, helper: EmitHelper): T;
+    function addEmitHelpers<T extends Node>(node: T, helpers: EmitHelper[] | undefined): T;
+    function removeEmitHelper(node: Node, helper: EmitHelper): boolean;
+    function getEmitHelpers(node: Node): EmitHelper[] | undefined;
+    function moveEmitHelpers(source: Node, target: Node, predicate: (helper: EmitHelper) => boolean): void;
+    function compareEmitHelpers(x: EmitHelper, y: EmitHelper): Comparison;
     function setTextRange<T extends TextRange>(node: T, location: TextRange): T;
     function setNodeFlags<T extends Node>(node: T, flags: NodeFlags): T;
     function setMultiLine<T extends ObjectLiteralExpression | ArrayLiteralExpression | Block>(node: T, multiLine: boolean): T;
@@ -9433,12 +9534,27 @@ declare namespace ts {
     function getLocalNameForExternalImport(node: ImportDeclaration | ExportDeclaration | ImportEqualsDeclaration, sourceFile: SourceFile): Identifier;
     function getExternalModuleNameLiteral(importNode: ImportDeclaration | ExportDeclaration | ImportEqualsDeclaration, sourceFile: SourceFile, host: EmitHost, resolver: EmitResolver, compilerOptions: CompilerOptions): StringLiteral;
     function tryGetModuleNameFromFile(file: SourceFile, host: EmitHost, options: CompilerOptions): StringLiteral;
-    function transformFunctionBody(node: FunctionLikeDeclaration, visitor: (node: Node) => VisitResult<Node>, currentSourceFile: SourceFile, context: TransformationContext, enableSubstitutionsForCapturedThis: () => void, convertObjectRest?: boolean): Block;
-    function addCaptureThisForNodeIfNeeded(statements: Statement[], node: Node, enableSubstitutionsForCapturedThis: () => void): void;
-    function captureThisForNode(statements: Statement[], node: Node, initializer: Expression | undefined, enableSubstitutionsForCapturedThis?: () => void, originalStatement?: Statement): void;
-    function addDefaultValueAssignmentsIfNeeded(statements: Statement[], node: FunctionLikeDeclaration, visitor: (node: Node) => VisitResult<Node>, convertObjectRest: boolean): void;
-    function addRestParameterIfNeeded(statements: Statement[], node: FunctionLikeDeclaration, inConstructorWithSynthesizedSuper: boolean): void;
-    function convertForOf(node: ForOfStatement, convertedLoopBodyStatements: Statement[], visitor: (node: Node) => VisitResult<Node>, enableSubstitutionsForBlockScopedBindings: () => void, context: TransformationContext, convertObjectRest?: boolean): ForStatement | ForOfStatement;
+    function getInitializerOfBindingOrAssignmentElement(bindingElement: BindingOrAssignmentElement): Expression | undefined;
+    function getTargetOfBindingOrAssignmentElement(bindingElement: BindingOrAssignmentElement): BindingOrAssignmentElementTarget;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement: BindingOrAssignmentElement): BindingOrAssignmentElementRestIndicator;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement: BindingOrAssignmentElement): PropertyName;
+    function getElementsOfBindingOrAssignmentPattern(name: BindingOrAssignmentPattern): BindingOrAssignmentElement[];
+    function convertToArrayAssignmentElement(element: BindingOrAssignmentElement): Expression;
+    function convertToObjectAssignmentElement(element: BindingOrAssignmentElement): ObjectLiteralElementLike;
+    function convertToAssignmentPattern(node: BindingOrAssignmentPattern): AssignmentPattern;
+    function convertToObjectAssignmentPattern(node: ObjectBindingOrAssignmentPattern): ObjectLiteralExpression;
+    function convertToArrayAssignmentPattern(node: ArrayBindingOrAssignmentPattern): ArrayLiteralExpression;
+    function convertToAssignmentElementTarget(node: BindingOrAssignmentElementTarget): Expression;
+    interface ExternalModuleInfo {
+        externalImports: (ImportDeclaration | ImportEqualsDeclaration | ExportDeclaration)[];
+        externalHelpersImportDeclaration: ImportDeclaration | undefined;
+        exportSpecifiers: Map<ExportSpecifier[]>;
+        exportedBindings: Map<Identifier[]>;
+        exportedNames: Identifier[];
+        exportEquals: ExportAssignment | undefined;
+        hasExportStarsToExportValues: boolean;
+    }
+    function collectExternalModuleInfo(sourceFile: SourceFile, resolver: EmitResolver, compilerOptions: CompilerOptions): ExternalModuleInfo;
 }
 declare namespace ts {
     function createNode(kind: SyntaxKind, pos?: number, end?: number): Node;
@@ -9474,12 +9590,18 @@ declare namespace ts {
 }
 declare namespace ts {
     type VisitResult<T extends Node> = T | T[];
-    function reduceEachChild<T>(node: Node, f: (memo: T, node: Node) => T, initial: T): T;
+    function reduceEachChild<T>(node: Node, initial: T, cbNode: (memo: T, node: Node) => T, cbNodeArray?: (memo: T, nodes: Node[]) => T): T;
     function visitNode<T extends Node>(node: T, visitor: (node: Node) => VisitResult<Node>, test: (node: Node) => boolean, optional?: boolean, lift?: (node: NodeArray<Node>) => T): T;
     function visitNode<T extends Node>(node: T, visitor: (node: Node) => VisitResult<Node>, test: (node: Node) => boolean, optional: boolean, lift: (node: NodeArray<Node>) => T, parenthesize: (node: Node, parentNode: Node) => Node, parentNode: Node): T;
     function visitNodes<T extends Node>(nodes: NodeArray<T>, visitor: (node: Node) => VisitResult<Node>, test: (node: Node) => boolean, start?: number, count?: number): NodeArray<T>;
     function visitNodes<T extends Node>(nodes: NodeArray<T>, visitor: (node: Node) => VisitResult<Node>, test: (node: Node) => boolean, start: number, count: number, parenthesize: (node: Node, parentNode: Node) => Node, parentNode: Node): NodeArray<T>;
-    function visitEachChild<T extends Node>(node: T, visitor: (node: Node) => VisitResult<Node>, context: LexicalEnvironment): T;
+    function visitLexicalEnvironment(statements: NodeArray<Statement>, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext, start?: number, ensureUseStrict?: boolean): NodeArray<Statement>;
+    function visitParameterList(nodes: NodeArray<ParameterDeclaration>, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext): NodeArray<ParameterDeclaration>;
+    function visitFunctionBody(node: FunctionBody, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext): FunctionBody;
+    function visitFunctionBody(node: ConciseBody, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext): ConciseBody;
+    function visitEachChild<T extends Node>(node: T, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext): T;
+    function mergeLexicalEnvironment(statements: NodeArray<Statement>, declarations: Statement[]): NodeArray<Statement>;
+    function mergeLexicalEnvironment(statements: Statement[], declarations: Statement[]): Statement[];
     function mergeFunctionBodyLexicalEnvironment(body: FunctionBody, declarations: Statement[]): FunctionBody;
     function mergeFunctionBodyLexicalEnvironment(body: ConciseBody, declarations: Statement[]): ConciseBody;
     function liftToBlock(nodes: Node[]): Statement;
@@ -9487,23 +9609,30 @@ declare namespace ts {
     namespace Debug {
         const failNotOptional: typeof noop;
         const failBadSyntaxKind: (node: Node, message?: string) => void;
+        const assertEachNode: (nodes: Node[], test: (node: Node) => boolean, message?: string) => void;
         const assertNode: (node: Node, test: (node: Node) => boolean, message?: string) => void;
+        const assertOptionalNode: (node: Node, test: (node: Node) => boolean, message?: string) => void;
+        const assertOptionalToken: (node: Node, kind: SyntaxKind, message?: string) => void;
+        const assertMissingNode: (node: Node, message?: string) => void;
     }
 }
 declare namespace ts {
-    function flattenDestructuringAssignment(context: TransformationContext, node: BinaryExpression, needsValue: boolean, recordTempVariable: (node: Identifier) => void, visitor?: (node: Node) => VisitResult<Node>, transformRest?: boolean): Expression;
-    function flattenParameterDestructuring(node: ParameterDeclaration, value: Expression, visitor?: (node: Node) => VisitResult<Node>, transformRest?: boolean): VariableDeclaration[];
-    function flattenVariableDestructuring(node: VariableDeclaration, value?: Expression, visitor?: (node: Node) => VisitResult<Node>, recordTempVariable?: (node: Identifier) => void, transformRest?: boolean): VariableDeclaration[];
-    function flattenVariableDestructuringToExpression(node: VariableDeclaration, recordTempVariable: (name: Identifier) => void, createAssignmentCallback?: (name: Identifier, value: Expression, location?: TextRange) => Expression, visitor?: (node: Node) => VisitResult<Node>): Expression;
+    const enum FlattenLevel {
+        All = 0,
+        ObjectRest = 1,
+    }
+    function flattenDestructuringAssignment(node: VariableDeclaration | DestructuringAssignment, visitor: ((node: Node) => VisitResult<Node>) | undefined, context: TransformationContext, level: FlattenLevel, needsValue?: boolean, createAssignmentCallback?: (name: Identifier, value: Expression, location?: TextRange) => Expression): Expression;
+    function flattenDestructuringBinding(node: VariableDeclaration | ParameterDeclaration, visitor: (node: Node) => VisitResult<Node>, context: TransformationContext, level: FlattenLevel, rval?: Expression, hoistTempVariables?: boolean, skipInitializer?: boolean): VariableDeclaration[];
 }
 declare namespace ts {
     function transformTypeScript(context: TransformationContext): (node: SourceFile) => SourceFile;
 }
 declare namespace ts {
-    function transformJsx(context: TransformationContext): (node: SourceFile) => SourceFile;
+    function transformESNext(context: TransformationContext): (node: SourceFile) => SourceFile;
+    function createAssignHelper(context: TransformationContext, attributesSegments: Expression[]): CallExpression;
 }
 declare namespace ts {
-    function transformESNext(context: TransformationContext): (node: SourceFile) => SourceFile;
+    function transformJsx(context: TransformationContext): (node: SourceFile) => SourceFile;
 }
 declare namespace ts {
     function transformES2017(context: TransformationContext): (node: SourceFile) => SourceFile;
@@ -9530,25 +9659,6 @@ declare namespace ts {
     function transformES2015Module(context: TransformationContext): (node: SourceFile) => SourceFile;
 }
 declare namespace ts {
-    interface TransformationResult {
-        transformed: SourceFile[];
-        emitNodeWithSubstitution(emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void): void;
-        emitNodeWithNotification(emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void): void;
-    }
-    interface TransformationContext extends LexicalEnvironment {
-        getCompilerOptions(): CompilerOptions;
-        getEmitResolver(): EmitResolver;
-        getEmitHost(): EmitHost;
-        hoistFunctionDeclaration(node: FunctionDeclaration): void;
-        hoistVariableDeclaration(node: Identifier): void;
-        enableSubstitution(kind: SyntaxKind): void;
-        isSubstitutionEnabled(node: Node): boolean;
-        onSubstituteNode?: (emitContext: EmitContext, node: Node) => Node;
-        enableEmitNotification(kind: SyntaxKind): void;
-        isEmitNotificationEnabled(node: Node): boolean;
-        onEmitNode?: (emitContext: EmitContext, node: Node, emitCallback: (emitContext: EmitContext, node: Node) => void) => void;
-    }
-    type Transformer = (context: TransformationContext) => (node: SourceFile) => SourceFile;
     function getTransformers(compilerOptions: CompilerOptions): Transformer[];
     function transformFiles(resolver: EmitResolver, host: EmitHost, sourceFiles: SourceFile[], transformers: Transformer[]): TransformationResult;
 }
@@ -9584,7 +9694,6 @@ declare namespace ts {
     function emitFiles(resolver: EmitResolver, host: EmitHost, targetSourceFile: SourceFile, emitOnlyDtsFiles?: boolean): EmitResult;
 }
 declare namespace ts {
-    const version = "2.2.0-dev.20161115";
     function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
     function computeCommonSourceDirectoryOfFilenames(fileNames: string[], currentDirectory: string, getCanonicalFileName: (fileName: string) => string): string;
@@ -9649,6 +9758,7 @@ declare namespace ts {
         nameTable: Map<number>;
         getNamedDeclarations(): Map<Declaration[]>;
         getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
+        getLineEndOfPosition(pos: number): number;
         getLineStarts(): number[];
         getPositionOfLineAndCharacter(line: number, character: number): number;
         update(newText: string, textChangeRange: TextChangeRange): SourceFile;
@@ -10779,6 +10889,8 @@ declare namespace ts {
         span: TextSpan;
         program: Program;
         newLineCharacter: string;
+        host: LanguageServiceHost;
+        cancellationToken: CancellationToken;
     }
     namespace codefix {
         function registerCodeFix(action: CodeFix): void;
@@ -10788,6 +10900,10 @@ declare namespace ts {
 }
 declare namespace ts.codefix {
 }
+declare namespace ts.codefix {
+}
+declare namespace ts.codefix {
+}
 declare namespace ts {
     const servicesVersion = "0.5";
     interface DisplayPartsSymbolWriter extends SymbolWriter {
@@ -10882,7 +10998,7 @@ declare namespace ts.server {
 }
 declare namespace ts.server {
     interface ITypingsInstaller {
-        enqueueInstallTypingsRequest(p: Project, typingOptions: TypingOptions, unresolvedImports: SortedReadonlyArray<string>): void;
+        enqueueInstallTypingsRequest(p: Project, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string>): void;
         attach(projectService: ProjectService): void;
         onProjectClosed(p: Project): void;
         readonly globalTypingsCacheLocation: string;
@@ -10893,7 +11009,7 @@ declare namespace ts.server {
         private readonly perProjectCache;
         constructor(installer: ITypingsInstaller);
         getTypingsForProject(project: Project, unresolvedImports: SortedReadonlyArray<string>, forceRefresh: boolean): SortedReadonlyArray<string>;
-        updateTypingsForProject(projectName: string, compilerOptions: CompilerOptions, typingOptions: TypingOptions, unresolvedImports: SortedReadonlyArray<string>, newTypings: string[]): void;
+        updateTypingsForProject(projectName: string, compilerOptions: CompilerOptions, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string>, newTypings: string[]): void;
         deleteTypingsForProject(projectName: string): void;
         onProjectClosed(project: Project): void;
     }
@@ -10941,6 +11057,7 @@ declare namespace ts.server {
     }
     function createNoSemanticFeaturesWrapper(realLanguageService: LanguageService): LanguageService;
     abstract class Project {
+        private readonly projectName;
         readonly projectKind: ProjectKind;
         readonly projectService: ProjectService;
         private documentRegistry;
@@ -10966,16 +11083,16 @@ declare namespace ts.server {
         isNonTsProject(): boolean;
         isJsOnlyProject(): boolean;
         getCachedUnresolvedImportsPerFile_TestOnly(): UnresolvedImportsMap;
-        constructor(projectKind: ProjectKind, projectService: ProjectService, documentRegistry: ts.DocumentRegistry, hasExplicitListOfFiles: boolean, languageServiceEnabled: boolean, compilerOptions: CompilerOptions, compileOnSaveEnabled: boolean);
+        constructor(projectName: string, projectKind: ProjectKind, projectService: ProjectService, documentRegistry: ts.DocumentRegistry, hasExplicitListOfFiles: boolean, languageServiceEnabled: boolean, compilerOptions: CompilerOptions, compileOnSaveEnabled: boolean);
         getProjectErrors(): Diagnostic[];
         getLanguageService(ensureSynchronized?: boolean): LanguageService;
         getCompileOnSaveAffectedFileList(scriptInfo: ScriptInfo): string[];
         getProjectVersion(): string;
         enableLanguageService(): void;
         disableLanguageService(): void;
-        abstract getProjectName(): string;
+        getProjectName(): string;
         abstract getProjectRootPath(): string | undefined;
-        abstract getTypingOptions(): TypingOptions;
+        abstract getTypeAcquisition(): TypeAcquisition;
         getSourceFile(path: Path): SourceFile;
         updateTypes(): void;
         close(): void;
@@ -11009,31 +11126,29 @@ declare namespace ts.server {
         private removeRootFileIfNecessary(info);
     }
     class InferredProject extends Project {
-        private static NextId;
-        private readonly inferredProjectName;
+        private static newName;
         directoriesWatchedForTsconfig: string[];
         constructor(projectService: ProjectService, documentRegistry: ts.DocumentRegistry, compilerOptions: CompilerOptions);
-        getProjectName(): string;
         getProjectRootPath(): string;
         close(): void;
-        getTypingOptions(): TypingOptions;
+        getTypeAcquisition(): TypeAcquisition;
     }
     class ConfiguredProject extends Project {
-        readonly configFileName: NormalizedPath;
         private wildcardDirectories;
         compileOnSaveEnabled: boolean;
-        private typingOptions;
+        private typeAcquisition;
         private projectFileWatcher;
         private directoryWatcher;
         private directoriesWatchedForWildcards;
         private typeRootsWatchers;
+        readonly canonicalConfigFilePath: NormalizedPath;
         openRefCount: number;
         constructor(configFileName: NormalizedPath, projectService: ProjectService, documentRegistry: ts.DocumentRegistry, hasExplicitListOfFiles: boolean, compilerOptions: CompilerOptions, wildcardDirectories: Map<WatchDirectoryFlags>, languageServiceEnabled: boolean, compileOnSaveEnabled: boolean);
+        getConfigFilePath(): string;
         getProjectRootPath(): string;
         setProjectErrors(projectErrors: Diagnostic[]): void;
-        setTypingOptions(newTypingOptions: TypingOptions): void;
-        getTypingOptions(): TypingOptions;
-        getProjectName(): NormalizedPath;
+        setTypeAcquisition(newTypeAcquisition: TypeAcquisition): void;
+        getTypeAcquisition(): TypeAcquisition;
         watchConfigFile(callback: (project: ConfiguredProject) => void): void;
         watchTypeRoots(callback: (project: ConfiguredProject, path: string) => void): void;
         watchConfigDirectory(callback: (project: ConfiguredProject, path: string) => void): void;
@@ -11045,16 +11160,14 @@ declare namespace ts.server {
         getEffectiveTypeRoots(): string[];
     }
     class ExternalProject extends Project {
-        readonly externalProjectName: string;
         compileOnSaveEnabled: boolean;
         private readonly projectFilePath;
-        private typingOptions;
+        private typeAcquisition;
         constructor(externalProjectName: string, projectService: ProjectService, documentRegistry: ts.DocumentRegistry, compilerOptions: CompilerOptions, languageServiceEnabled: boolean, compileOnSaveEnabled: boolean, projectFilePath?: string);
         getProjectRootPath(): string;
-        getTypingOptions(): TypingOptions;
+        getTypeAcquisition(): TypeAcquisition;
         setProjectErrors(projectErrors: Diagnostic[]): void;
-        setTypingOptions(newTypingOptions: TypingOptions): void;
-        getProjectName(): string;
+        setTypeAcquisition(newTypeAcquisition: TypeAcquisition): void;
     }
 }
 declare namespace ts.server {
@@ -11122,7 +11235,7 @@ declare namespace ts.server {
         private readonly throttledOperations;
         private readonly hostConfiguration;
         private changedFiles;
-        private toCanonicalFileName;
+        readonly toCanonicalFileName: (f: string) => string;
         lastDeletedFile: ScriptInfo;
         constructor(host: ServerHost, logger: Logger, cancellationToken: HostCancellationToken, useSingleInferredProject: boolean, typingsInstaller?: ITypingsInstaller, eventHandler?: ProjectServiceEventHandler);
         getChangedFiles_TestOnly(): ScriptInfo[];
@@ -11156,13 +11269,13 @@ declare namespace ts.server {
         private findExternalProjectByProjectName(projectFileName);
         private convertConfigFileContentToProjectOptions(configFilename);
         private exceededTotalSizeLimitForNonTsFiles<T>(options, fileNames, propertyReader);
-        private createAndAddExternalProject(projectFileName, files, options, typingOptions);
+        private createAndAddExternalProject(projectFileName, files, options, typeAcquisition);
         private reportConfigFileDiagnostics(configFileName, diagnostics, triggerFile);
         private createAndAddConfiguredProject(configFileName, projectOptions, configFileErrors, clientFileName?);
         private watchConfigDirectoryForProject(project, options);
-        private addFilesToProjectAndUpdateGraph<T>(project, files, propertyReader, clientFileName, typingOptions, configFileErrors);
+        private addFilesToProjectAndUpdateGraph<T>(project, files, propertyReader, clientFileName, typeAcquisition, configFileErrors);
         private openConfigFile(configFileName, clientFileName?);
-        private updateNonInferredProject<T>(project, newUncheckedFiles, propertyReader, newOptions, newTypingOptions, compileOnSave, configFileErrors);
+        private updateNonInferredProject<T>(project, newUncheckedFiles, propertyReader, newOptions, newTypeAcquisition, compileOnSave, configFileErrors);
         private updateConfiguredProject(project);
         createInferredProjectWithRootFileIfNecessary(root: ScriptInfo): InferredProject;
         getOrCreateScriptInfo(uncheckedFileName: string, openedByClient: boolean, fileContent?: string, scriptKind?: ScriptKind): ScriptInfo;
diff --git a/node_modules/typescript/lib/tsserverlibrary.js b/node_modules/typescript/lib/tsserverlibrary.js
index 04f56d015..4ed37099e 100644
--- a/node_modules/typescript/lib/tsserverlibrary.js
+++ b/node_modules/typescript/lib/tsserverlibrary.js
@@ -137,6 +137,9 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+(function (ts) {
     var createObject = Object.create;
     ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
     function createMap(template) {
@@ -606,7 +609,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -621,6 +624,14 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; })
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
+            .map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -775,6 +786,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -1227,6 +1247,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
         for (var i = 0; i < str.length; i++) {
@@ -1777,6 +1805,16 @@ var ts;
         }
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
     function orderedRemoveItemAt(array, index) {
         for (var i = index; i < array.length - 1; i++) {
             array[i] = array[i + 1];
@@ -2811,7 +2849,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -2876,7 +2914,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -2947,6 +2986,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -3161,9 +3201,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -3175,6 +3215,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 var ts;
@@ -5176,12 +5219,16 @@ var ts;
             description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
         }
     ];
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -5205,6 +5252,18 @@ var ts;
         sourceMap: false,
     };
     var optionNameMapCache;
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -5484,14 +5543,15 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -5518,7 +5578,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -5526,7 +5586,7 @@ var ts;
         };
         function tryExtendsName(extendedConfig) {
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -5589,7 +5649,7 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -5624,12 +5684,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -5637,9 +5697,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -5858,9 +5919,9 @@ var ts;
             "constants", "process", "v8", "timers", "console"
         ];
         var nodeCoreModules = ts.arrayToMap(JsTyping.nodeCoreModuleList, function (x) { return x; });
-        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typingOptions, unresolvedImports) {
+        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typeAcquisition, unresolvedImports) {
             var inferredTypings = ts.createMap();
-            if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+            if (!typeAcquisition || !typeAcquisition.enable) {
                 return { cachedTypingPaths: [], newTypingNames: [], filesToWatch: [] };
             }
             fileNames = ts.filter(ts.map(fileNames, ts.normalizePath), function (f) {
@@ -5874,8 +5935,8 @@ var ts;
             var filesToWatch = [];
             var searchDirs = [];
             var exclude = [];
-            mergeTypings(typingOptions.include);
-            exclude = typingOptions.exclude || [];
+            mergeTypings(typeAcquisition.include);
+            exclude = typeAcquisition.exclude || [];
             var possibleSearchDirs = ts.map(fileNames, ts.getDirectoryPath);
             if (projectRootPath) {
                 possibleSearchDirs.push(projectRootPath);
@@ -6057,12 +6118,12 @@ var ts;
                     return project.projectService.host.fileExists(projectName) ? ts.getDirectoryPath(projectName) : projectName;
             }
         }
-        function createInstallTypingsRequest(project, typingOptions, unresolvedImports, cachePath) {
+        function createInstallTypingsRequest(project, typeAcquisition, unresolvedImports, cachePath) {
             return {
                 projectName: project.getProjectName(),
                 fileNames: project.getFileNames(true),
                 compilerOptions: project.getCompilerOptions(),
-                typingOptions: typingOptions,
+                typeAcquisition: typeAcquisition,
                 unresolvedImports: unresolvedImports,
                 projectRootPath: getProjectRootPath(project),
                 cachePath: cachePath,
@@ -6249,6 +6310,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -6982,28 +7044,28 @@ var ts;
         return !nodeIsMissing(node);
     }
     ts.nodeIsPresent = nodeIsPresent;
-    function getTokenPosOfNode(node, sourceFile, includeJsDocComment) {
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
         if (nodeIsMissing(node)) {
             return node.pos;
         }
         if (isJSDocNode(node)) {
             return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, false, true);
         }
-        if (includeJsDocComment && node.jsDocComments && node.jsDocComments.length > 0) {
-            return getTokenPosOfNode(node.jsDocComments[0]);
+        if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
+            return getTokenPosOfNode(node.jsDoc[0]);
         }
-        if (node.kind === 291 && node._children.length > 0) {
-            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDocComment);
+        if (node.kind === 292 && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
         }
         return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
     }
     ts.getTokenPosOfNode = getTokenPosOfNode;
     function isJSDocNode(node) {
-        return node.kind >= 262 && node.kind <= 287;
+        return node.kind >= 262 && node.kind <= 288;
     }
     ts.isJSDocNode = isJSDocNode;
     function isJSDocTag(node) {
-        return node.kind >= 278 && node.kind <= 290;
+        return node.kind >= 278 && node.kind <= 291;
     }
     ts.isJSDocTag = isJSDocTag;
     function getNonDecoratorTokenPosOfNode(node, sourceFile) {
@@ -7180,7 +7242,7 @@ var ts;
             case 8:
                 return name.text;
             case 142:
-                if (isStringOrNumericLiteral(name.expression.kind)) {
+                if (isStringOrNumericLiteral(name.expression)) {
                     return name.expression.text;
                 }
         }
@@ -7302,7 +7364,8 @@ var ts;
     }
     ts.isSuperCall = isSuperCall;
     function isPrologueDirective(node) {
-        return node.kind === 207 && node.expression.kind === 9;
+        return node.kind === 207
+            && node.expression.kind === 9;
     }
     ts.isPrologueDirective = isPrologueDirective;
     function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
@@ -7313,25 +7376,20 @@ var ts;
         return ts.getLeadingCommentRanges(text, node.pos);
     }
     ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
-    function getJsDocComments(node, sourceFileOfNode) {
-        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
-    }
-    ts.getJsDocComments = getJsDocComments;
-    function getJsDocCommentsFromText(node, text) {
+    function getJSDocCommentRanges(node, text) {
         var commentRanges = (node.kind === 144 ||
             node.kind === 143 ||
             node.kind === 184 ||
             node.kind === 185) ?
             ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
             getLeadingCommentRangesOfNodeFromText(node, text);
-        return ts.filter(commentRanges, isJsDocComment);
-        function isJsDocComment(comment) {
+        return ts.filter(commentRanges, function (comment) {
             return text.charCodeAt(comment.pos + 1) === 42 &&
                 text.charCodeAt(comment.pos + 2) === 42 &&
                 text.charCodeAt(comment.pos + 3) !== 47;
-        }
+        });
     }
-    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
     ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
@@ -7857,6 +7915,7 @@ var ts;
                     case 145:
                     case 252:
                     case 251:
+                    case 259:
                         return true;
                     case 199:
                         return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
@@ -8011,152 +8070,118 @@ var ts;
             node.parameters[0].type.kind === 276;
     }
     ts.isJSDocConstructSignature = isJSDocConstructSignature;
-    function getJSDocTag(node, kind, checkParentVariableStatement) {
-        if (!node) {
-            return undefined;
-        }
-        var jsDocTags = getJSDocTags(node, checkParentVariableStatement);
-        if (!jsDocTags) {
-            return undefined;
-        }
-        for (var _i = 0, jsDocTags_1 = jsDocTags; _i < jsDocTags_1.length; _i++) {
-            var tag = jsDocTags_1[_i];
-            if (tag.kind === kind) {
-                return tag;
-            }
-        }
+    function getCommentsFromJSDoc(node) {
+        return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
     }
-    function append(previous, additional) {
-        if (additional) {
-            if (!previous) {
-                previous = [];
-            }
-            for (var _i = 0, additional_1 = additional; _i < additional_1.length; _i++) {
-                var x = additional_1[_i];
-                previous.push(x);
-            }
-        }
-        return previous;
-    }
-    function getJSDocComments(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) { return ts.map(docs, function (doc) { return doc.comment; }); }, function (tags) { return ts.map(tags, function (tag) { return tag.comment; }); });
-    }
-    ts.getJSDocComments = getJSDocComments;
-    function getJSDocTags(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) {
+    ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
+    function getJSDocTags(node, kind) {
+        var docs = getJSDocs(node);
+        if (docs) {
             var result = [];
             for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                 var doc = docs_1[_i];
-                if (doc.tags) {
-                    result.push.apply(result, doc.tags);
+                if (doc.kind === 281) {
+                    if (doc.kind === kind) {
+                        result.push(doc);
+                    }
+                }
+                else {
+                    result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
                 }
             }
             return result;
-        }, function (tags) { return tags; });
-    }
-    function getJSDocs(node, checkParentVariableStatement, getDocs, getTags) {
-        var result = undefined;
-        if (checkParentVariableStatement) {
-            var isInitializerOfVariableDeclarationInStatement = isVariableLike(node.parent) &&
-                (node.parent).initializer === node &&
-                node.parent.parent.parent.kind === 205;
+        }
+    }
+    function getFirstJSDocTag(node, kind) {
+        return node && ts.firstOrUndefined(getJSDocTags(node, kind));
+    }
+    function getJSDocs(node) {
+        var cache = node.jsDocCache;
+        if (!cache) {
+            getJSDocsWorker(node);
+            node.jsDocCache = cache;
+        }
+        return cache;
+        function getJSDocsWorker(node) {
+            var parent = node.parent;
+            var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
+                parent.initializer === node &&
+                parent.parent.parent.kind === 205;
             var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
-                node.parent.parent.kind === 205;
-            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent :
-                isVariableOfVariableDeclarationStatement ? node.parent.parent :
+                parent.parent.kind === 205;
+            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
+                isVariableOfVariableDeclarationStatement ? parent.parent :
                     undefined;
             if (variableStatementNode) {
-                result = append(result, getJSDocs(variableStatementNode, checkParentVariableStatement, getDocs, getTags));
-            }
-            if (node.kind === 230 &&
-                node.parent && node.parent.kind === 230) {
-                result = append(result, getJSDocs(node.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(variableStatementNode);
             }
-            var parent_4 = node.parent;
-            var isSourceOfAssignmentExpressionStatement = parent_4 && parent_4.parent &&
-                parent_4.kind === 192 &&
-                parent_4.operatorToken.kind === 57 &&
-                parent_4.parent.kind === 207;
+            var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
+                parent.kind === 192 &&
+                parent.operatorToken.kind === 57 &&
+                parent.parent.kind === 207;
             if (isSourceOfAssignmentExpressionStatement) {
-                result = append(result, getJSDocs(parent_4.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(parent.parent);
             }
-            var isPropertyAssignmentExpression = parent_4 && parent_4.kind === 257;
-            if (isPropertyAssignmentExpression) {
-                result = append(result, getJSDocs(parent_4, checkParentVariableStatement, getDocs, getTags));
+            var isModuleDeclaration = node.kind === 230 &&
+                parent && parent.kind === 230;
+            var isPropertyAssignmentExpression = parent && parent.kind === 257;
+            if (isModuleDeclaration || isPropertyAssignmentExpression) {
+                getJSDocsWorker(parent);
             }
             if (node.kind === 144) {
-                var paramTags = getJSDocParameterTag(node, checkParentVariableStatement);
-                if (paramTags) {
-                    result = append(result, getTags(paramTags));
-                }
-            }
-        }
-        if (isVariableLike(node) && node.initializer) {
-            result = append(result, getJSDocs(node.initializer, false, getDocs, getTags));
-        }
-        if (node.jsDocComments) {
-            if (result) {
-                result = append(result, getDocs(node.jsDocComments));
+                cache = ts.concatenate(cache, getJSDocParameterTags(node));
             }
-            else {
-                return getDocs(node.jsDocComments);
+            if (isVariableLike(node) && node.initializer) {
+                cache = ts.concatenate(cache, node.initializer.jsDoc);
             }
+            cache = ts.concatenate(cache, node.jsDoc);
         }
-        return result;
     }
-    function getJSDocParameterTag(param, checkParentVariableStatement) {
+    function getJSDocParameterTags(param) {
+        if (!isParameter(param)) {
+            return undefined;
+        }
         var func = param.parent;
-        var tags = getJSDocTags(func, checkParentVariableStatement);
+        var tags = getJSDocTags(func, 281);
         if (!param.name) {
             var i = func.parameters.indexOf(param);
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280; });
+            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281; });
             if (paramTags && 0 <= i && i < paramTags.length) {
                 return [paramTags[i]];
             }
         }
         else if (param.name.kind === 70) {
             var name_8 = param.name.text;
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 && tag.parameterName.text === name_8; });
-            if (paramTags) {
-                return paramTags;
-            }
+            return ts.filter(tags, function (tag) { return tag.kind === 281 && tag.parameterName.text === name_8; });
         }
         else {
             return undefined;
         }
     }
-    function getJSDocTypeTag(node) {
-        return getJSDocTag(node, 282, false);
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, 283);
+        if (!tag && node.kind === 144) {
+            var paramTags = getJSDocParameterTags(node);
+            if (paramTags) {
+                tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
+            }
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
+    }
+    ts.getJSDocType = getJSDocType;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, 280);
     }
-    ts.getJSDocTypeTag = getJSDocTypeTag;
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
     function getJSDocReturnTag(node) {
-        return getJSDocTag(node, 281, true);
+        return getFirstJSDocTag(node, 282);
     }
     ts.getJSDocReturnTag = getJSDocReturnTag;
     function getJSDocTemplateTag(node) {
-        return getJSDocTag(node, 283, false);
+        return getFirstJSDocTag(node, 284);
     }
     ts.getJSDocTemplateTag = getJSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter) {
-        if (parameter.name && parameter.name.kind === 70) {
-            var parameterName = parameter.name.text;
-            var jsDocTags = getJSDocTags(parameter.parent, true);
-            if (!jsDocTags) {
-                return undefined;
-            }
-            for (var _i = 0, jsDocTags_2 = jsDocTags; _i < jsDocTags_2.length; _i++) {
-                var tag = jsDocTags_2[_i];
-                if (tag.kind === 280) {
-                    var parameterTag = tag;
-                    if (parameterTag.parameterName.text === parameterName) {
-                        return parameterTag;
-                    }
-                }
-            }
-        }
-        return undefined;
-    }
-    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
     function hasRestParameter(s) {
         return isRestParameter(ts.lastOrUndefined(s.parameters));
     }
@@ -8167,13 +8192,10 @@ var ts;
     ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
     function isRestParameter(node) {
         if (node && (node.flags & 2097152)) {
-            if (node.type && node.type.kind === 275) {
+            if (node.type && node.type.kind === 275 ||
+                ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275; })) {
                 return true;
             }
-            var paramTag = getCorrespondingJSDocParameterTag(node);
-            if (paramTag && paramTag.typeExpression) {
-                return paramTag.typeExpression.type.kind === 275;
-            }
         }
         return isDeclaredRestParam(node);
     }
@@ -8396,8 +8418,10 @@ var ts;
         return isFunctionLike(node) && hasModifier(node, 256) && !isAccessor(node);
     }
     ts.isAsyncFunctionLike = isAsyncFunctionLike;
-    function isStringOrNumericLiteral(kind) {
-        return kind === 9 || kind === 8;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 9
+            || kind === 8;
     }
     ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
     function hasDynamicName(declaration) {
@@ -8406,7 +8430,7 @@ var ts;
     ts.hasDynamicName = hasDynamicName;
     function isDynamicName(name) {
         return name.kind === 142 &&
-            !isStringOrNumericLiteral(name.expression.kind) &&
+            !isStringOrNumericLiteral(name.expression) &&
             !isWellKnownSymbolSyntactically(name.expression);
     }
     ts.isDynamicName = isDynamicName;
@@ -8612,6 +8636,7 @@ var ts;
             case 194:
             case 183:
             case 198:
+            case 297:
                 return 19;
             case 181:
             case 177:
@@ -9373,19 +9398,19 @@ var ts;
         }
     }
     ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
-    function isAssignmentExpression(node) {
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
         return isBinaryExpression(node)
-            && isAssignmentOperator(node.operatorToken.kind)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 57
+                : isAssignmentOperator(node.operatorToken.kind))
             && isLeftHandSideExpression(node.left);
     }
     ts.isAssignmentExpression = isAssignmentExpression;
     function isDestructuringAssignment(node) {
-        if (isBinaryExpression(node)) {
-            if (node.operatorToken.kind === 57) {
-                var kind = node.left.kind;
-                return kind === 176
-                    || kind === 175;
-            }
+        if (isAssignmentExpression(node, true)) {
+            var kind = node.left.kind;
+            return kind === 176
+                || kind === 175;
         }
         return false;
     }
@@ -9696,122 +9721,6 @@ var ts;
         return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
     }
     ts.getStartPositionOfRange = getStartPositionOfRange;
-    function collectExternalModuleInfo(sourceFile, resolver) {
-        var externalImports = [];
-        var exportSpecifiers = ts.createMap();
-        var exportedBindings = ts.createMap();
-        var uniqueExports = ts.createMap();
-        var hasExportDefault = false;
-        var exportEquals = undefined;
-        var hasExportStarsToExportValues = false;
-        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
-            var node = _a[_i];
-            switch (node.kind) {
-                case 235:
-                    externalImports.push(node);
-                    break;
-                case 234:
-                    if (node.moduleReference.kind === 245) {
-                        externalImports.push(node);
-                    }
-                    break;
-                case 241:
-                    if (node.moduleSpecifier) {
-                        if (!node.exportClause) {
-                            externalImports.push(node);
-                            hasExportStarsToExportValues = true;
-                        }
-                        else {
-                            externalImports.push(node);
-                        }
-                    }
-                    else {
-                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
-                            var specifier = _c[_b];
-                            if (!uniqueExports[specifier.name.text]) {
-                                var name_10 = specifier.propertyName || specifier.name;
-                                ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
-                                var decl = resolver.getReferencedImportDeclaration(name_10)
-                                    || resolver.getReferencedValueDeclaration(name_10);
-                                if (decl) {
-                                    ts.multiMapAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
-                                }
-                                uniqueExports[specifier.name.text] = specifier.name;
-                            }
-                        }
-                    }
-                    break;
-                case 240:
-                    if (node.isExportEquals && !exportEquals) {
-                        exportEquals = node;
-                    }
-                    break;
-                case 205:
-                    if (hasModifier(node, 1)) {
-                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
-                            var decl = _e[_d];
-                            collectExportedVariableInfo(decl, uniqueExports);
-                        }
-                    }
-                    break;
-                case 225:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_11 = node.name;
-                            if (!uniqueExports[name_11.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_11);
-                                uniqueExports[name_11.text] = name_11;
-                            }
-                        }
-                    }
-                    break;
-                case 226:
-                    if (hasModifier(node, 1)) {
-                        if (hasModifier(node, 512)) {
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            var name_12 = node.name;
-                            if (!uniqueExports[name_12.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_12);
-                                uniqueExports[name_12.text] = name_12;
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        var exportedNames;
-        for (var key in uniqueExports) {
-            exportedNames = ts.append(exportedNames, uniqueExports[key]);
-        }
-        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames };
-    }
-    ts.collectExternalModuleInfo = collectExternalModuleInfo;
-    function collectExportedVariableInfo(decl, uniqueExports) {
-        if (isBindingPattern(decl.name)) {
-            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
-                var element = _a[_i];
-                if (!isOmittedExpression(element)) {
-                    collectExportedVariableInfo(element, uniqueExports);
-                }
-            }
-        }
-        else if (!isGeneratedIdentifier(decl.name)) {
-            if (!uniqueExports[decl.name.text]) {
-                uniqueExports[decl.name.text] = decl.name;
-            }
-        }
-    }
     function isDeclarationNameOfEnumOrNamespace(node) {
         var parseNode = getParseTreeNode(node);
         if (parseNode) {
@@ -9982,6 +9891,14 @@ var ts;
         return isTypeNodeKind(node.kind);
     }
     ts.isTypeNode = isTypeNode;
+    function isArrayBindingPattern(node) {
+        return node.kind === 173;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isObjectBindingPattern(node) {
+        return node.kind === 172;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
     function isBindingPattern(node) {
         if (node) {
             var kind = node.kind;
@@ -9991,6 +9908,12 @@ var ts;
         return false;
     }
     ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 175
+            || kind === 176;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
     function isBindingElement(node) {
         return node.kind === 174;
     }
@@ -10001,6 +9924,39 @@ var ts;
             || kind === 198;
     }
     ts.isArrayBindingElement = isArrayBindingElement;
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 223:
+            case 144:
+            case 174:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 172:
+            case 176:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
     function isArrayLiteralExpression(node) {
         return node.kind === 175;
     }
@@ -10067,7 +10023,8 @@ var ts;
             || kind === 98
             || kind === 100
             || kind === 96
-            || kind === 201;
+            || kind === 201
+            || kind === 297;
     }
     function isLeftHandSideExpression(node) {
         return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
@@ -10095,6 +10052,7 @@ var ts;
             || kind === 196
             || kind === 200
             || kind === 198
+            || kind === 297
             || isUnaryExpressionKind(kind);
     }
     function isExpression(node) {
@@ -10108,11 +10066,11 @@ var ts;
     }
     ts.isAssertionExpression = isAssertionExpression;
     function isPartiallyEmittedExpression(node) {
-        return node.kind === 293;
+        return node.kind === 294;
     }
     ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
     function isNotEmittedStatement(node) {
-        return node.kind === 292;
+        return node.kind === 293;
     }
     ts.isNotEmittedStatement = isNotEmittedStatement;
     function isNotEmittedOrPartiallyEmittedNode(node) {
@@ -10224,7 +10182,7 @@ var ts;
             || kind === 228
             || kind === 143
             || kind === 223
-            || kind === 284;
+            || kind === 285;
     }
     function isDeclarationStatementKind(kind) {
         return kind === 225
@@ -10259,9 +10217,9 @@ var ts;
             || kind === 205
             || kind === 210
             || kind === 217
-            || kind === 292
-            || kind === 295
-            || kind === 294;
+            || kind === 293
+            || kind === 296
+            || kind === 295;
     }
     function isDeclaration(node) {
         return isDeclarationKind(node.kind);
@@ -10549,6 +10507,53 @@ var ts;
         return flags;
     }
     ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, undefined, errors);
+        }
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.localizedDiagnosticMessages = JSON.parse(fileContents);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -10749,9 +10754,9 @@ var ts;
         return node;
     }
     ts.createParameter = createParameter;
-    function updateParameter(node, decorators, modifiers, name, type, initializer) {
-        if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
-            return updateNode(createParameter(decorators, modifiers, node.dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
+        if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
+            return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, node, node.flags), node);
         }
         return node;
     }
@@ -10884,9 +10889,9 @@ var ts;
         return node;
     }
     ts.createBindingElement = createBindingElement;
-    function updateBindingElement(node, propertyName, name, initializer) {
-        if (node.propertyName !== propertyName || node.name !== name || node.initializer !== initializer) {
-            return updateNode(createBindingElement(propertyName, node.dotDotDotToken, name, initializer, node), node);
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
+            return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
         }
         return node;
     }
@@ -10926,7 +10931,7 @@ var ts;
     function createPropertyAccess(expression, name, location, flags) {
         var node = createNode(177, location, flags);
         node.expression = parenthesizeForAccess(expression);
-        (node.emitNode || (node.emitNode = {})).flags |= 1048576;
+        (node.emitNode || (node.emitNode = {})).flags |= 65536;
         node.name = typeof name === "string" ? createIdentifier(name) : name;
         return node;
     }
@@ -11147,13 +11152,21 @@ var ts;
         return node;
     }
     ts.updateBinary = updateBinary;
-    function createConditional(condition, questionToken, whenTrue, colonToken, whenFalse, location) {
-        var node = createNode(193, location);
-        node.condition = condition;
-        node.questionToken = questionToken;
-        node.whenTrue = whenTrue;
-        node.colonToken = colonToken;
-        node.whenFalse = whenFalse;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
+        var node = createNode(193, whenFalse ? location : colonTokenOrLocation);
+        node.condition = parenthesizeForConditionalHead(condition);
+        if (whenFalse) {
+            node.questionToken = questionTokenOrWhenTrue;
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+            node.colonToken = colonTokenOrLocation;
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
+        }
+        else {
+            node.questionToken = createToken(54);
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
+            node.colonToken = createToken(55);
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+        }
         return node;
     }
     ts.createConditional = createConditional;
@@ -11963,35 +11976,33 @@ var ts;
                 updated.imports = node.imports;
             if (node.moduleAugmentations !== undefined)
                 updated.moduleAugmentations = node.moduleAugmentations;
-            if (node.externalHelpersModuleName !== undefined)
-                updated.externalHelpersModuleName = node.externalHelpersModuleName;
             return updateNode(updated, node);
         }
         return node;
     }
     ts.updateSourceFileNode = updateSourceFileNode;
     function createNotEmittedStatement(original) {
-        var node = createNode(292, original);
+        var node = createNode(293, original);
         node.original = original;
         return node;
     }
     ts.createNotEmittedStatement = createNotEmittedStatement;
     function createEndOfDeclarationMarker(original) {
-        var node = createNode(295);
+        var node = createNode(296);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createEndOfDeclarationMarker = createEndOfDeclarationMarker;
     function createMergeDeclarationMarker(original) {
-        var node = createNode(294);
+        var node = createNode(295);
         node.emitNode = {};
         node.original = original;
         return node;
     }
     ts.createMergeDeclarationMarker = createMergeDeclarationMarker;
     function createPartiallyEmittedExpression(expression, original, location) {
-        var node = createNode(293, location || original);
+        var node = createNode(294, location || original);
         node.expression = expression;
         node.original = original;
         return node;
@@ -12004,6 +12015,12 @@ var ts;
         return node;
     }
     ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    function createRawExpression(text) {
+        var node = createNode(297);
+        node.text = text;
+        return node;
+    }
+    ts.createRawExpression = createRawExpression;
     function createComma(left, right) {
         return createBinary(left, 25, right);
     }
@@ -12052,13 +12069,19 @@ var ts;
         return createVoid(createLiteral(0));
     }
     ts.createVoidZero = createVoidZero;
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? createStrictEquality(value, createVoidZero())
+            : createStrictEquality(createTypeOf(value), createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
     function createMemberAccessForPropertyName(target, memberName, location) {
         if (ts.isComputedPropertyName(memberName)) {
             return createElementAccess(target, memberName.expression, location);
         }
         else {
             var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
-            (expression.emitNode || (expression.emitNode = {})).flags |= 2048;
+            (expression.emitNode || (expression.emitNode = {})).flags |= 64;
             return expression;
         }
     }
@@ -12100,7 +12123,10 @@ var ts;
     }
     function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
         if (ts.isQualifiedName(jsxFactory)) {
-            return createPropertyAccess(createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent), setEmitFlags(getMutableClone(jsxFactory.right), 1536));
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = createSynthesizedNode(70);
+            right.text = jsxFactory.right.text;
+            return createPropertyAccess(left, right);
         }
         else {
             return createReactNamespace(jsxFactory.text, parent);
@@ -12154,114 +12180,10 @@ var ts;
         return createVariableDeclarationList(declarations, location, 2);
     }
     ts.createConstDeclarationList = createConstDeclarationList;
-    function createHelperName(externalHelpersModuleName, name) {
-        return externalHelpersModuleName
-            ? createPropertyAccess(externalHelpersModuleName, name)
-            : createIdentifier(name);
-    }
-    ts.createHelperName = createHelperName;
-    function createExtendsHelper(externalHelpersModuleName, name) {
-        return createCall(createHelperName(externalHelpersModuleName, "__extends"), undefined, [
-            name,
-            createIdentifier("_super")
-        ]);
-    }
-    ts.createExtendsHelper = createExtendsHelper;
-    function createAssignHelper(externalHelpersModuleName, attributesSegments) {
-        return createCall(createHelperName(externalHelpersModuleName, "__assign"), undefined, attributesSegments);
-    }
-    ts.createAssignHelper = createAssignHelper;
-    function createParamHelper(externalHelpersModuleName, expression, parameterOffset, location) {
-        return createCall(createHelperName(externalHelpersModuleName, "__param"), undefined, [
-            createLiteral(parameterOffset),
-            expression
-        ], location);
-    }
-    ts.createParamHelper = createParamHelper;
-    function createMetadataHelper(externalHelpersModuleName, metadataKey, metadataValue) {
-        return createCall(createHelperName(externalHelpersModuleName, "__metadata"), undefined, [
-            createLiteral(metadataKey),
-            metadataValue
-        ]);
-    }
-    ts.createMetadataHelper = createMetadataHelper;
-    function createDecorateHelper(externalHelpersModuleName, decoratorExpressions, target, memberName, descriptor, location) {
-        var argumentsArray = [];
-        argumentsArray.push(createArrayLiteral(decoratorExpressions, undefined, true));
-        argumentsArray.push(target);
-        if (memberName) {
-            argumentsArray.push(memberName);
-            if (descriptor) {
-                argumentsArray.push(descriptor);
-            }
-        }
-        return createCall(createHelperName(externalHelpersModuleName, "__decorate"), undefined, argumentsArray, location);
+    function getHelperName(name) {
+        return setEmitFlags(createIdentifier(name), 4096 | 2);
     }
-    ts.createDecorateHelper = createDecorateHelper;
-    function createAwaiterHelper(externalHelpersModuleName, hasLexicalArguments, promiseConstructor, body) {
-        var generatorFunc = createFunctionExpression(undefined, createToken(38), undefined, undefined, [], undefined, body);
-        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 2097152;
-        return createCall(createHelperName(externalHelpersModuleName, "__awaiter"), undefined, [
-            createThis(),
-            hasLexicalArguments ? createIdentifier("arguments") : createVoidZero(),
-            promiseConstructor ? createExpressionFromEntityName(promiseConstructor) : createVoidZero(),
-            generatorFunc
-        ]);
-    }
-    ts.createAwaiterHelper = createAwaiterHelper;
-    function createHasOwnProperty(target, propertyName) {
-        return createCall(createPropertyAccess(target, "hasOwnProperty"), undefined, [propertyName]);
-    }
-    ts.createHasOwnProperty = createHasOwnProperty;
-    function createObjectCreate(prototype) {
-        return createCall(createPropertyAccess(createIdentifier("Object"), "create"), undefined, [prototype]);
-    }
-    function createGeti(target) {
-        return createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createElementAccess(target, createIdentifier("name")));
-    }
-    function createSeti(target) {
-        return createArrowFunction(undefined, undefined, [
-            createParameter(undefined, undefined, undefined, "name"),
-            createParameter(undefined, undefined, undefined, "value")
-        ], undefined, createToken(35), createAssignment(createElementAccess(target, createIdentifier("name")), createIdentifier("value")));
-    }
-    function createAdvancedAsyncSuperHelper() {
-        var createCache = createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("cache", undefined, createObjectCreate(createNull()))
-        ]));
-        var getter = createGetAccessor(undefined, undefined, "value", [], undefined, createBlock([
-            createReturn(createCall(createIdentifier("geti"), undefined, [createIdentifier("name")]))
-        ]));
-        var setter = createSetAccessor(undefined, undefined, "value", [createParameter(undefined, undefined, undefined, "v")], createBlock([
-            createStatement(createCall(createIdentifier("seti"), undefined, [
-                createIdentifier("name"),
-                createIdentifier("v")
-            ]))
-        ]));
-        var getOrCreateAccessorsForName = createReturn(createArrowFunction(undefined, undefined, [createParameter(undefined, undefined, undefined, "name")], undefined, createToken(35), createLogicalOr(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createParen(createAssignment(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createObjectLiteral([
-            getter,
-            setter
-        ]))))));
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createCall(createParen(createFunctionExpression(undefined, undefined, undefined, undefined, [
-                createParameter(undefined, undefined, undefined, "geti"),
-                createParameter(undefined, undefined, undefined, "seti")
-            ], undefined, createBlock([
-                createCache,
-                getOrCreateAccessorsForName
-            ]))), undefined, [
-                createGeti(createSuper()),
-                createSeti(createSuper())
-            ]))
-        ]));
-    }
-    ts.createAdvancedAsyncSuperHelper = createAdvancedAsyncSuperHelper;
-    function createSimpleAsyncSuperHelper() {
-        return createVariableStatement(undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", undefined, createGeti(createSuper()))
-        ]));
-    }
-    ts.createSimpleAsyncSuperHelper = createSimpleAsyncSuperHelper;
+    ts.getHelperName = getHelperName;
     function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
         var target = skipParentheses(node);
         switch (target.kind) {
@@ -12407,19 +12329,19 @@ var ts;
         return ts.aggregateTransformFlags(setOriginalNode(createAssignment(createMemberAccessForPropertyName(receiver, method.name, method.name), setOriginalNode(createFunctionExpression(method.modifiers, method.asteriskToken, undefined, undefined, method.parameters, undefined, method.body, method), method), method), method));
     }
     function getLocalName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 262144);
+        return getName(node, allowComments, allowSourceMaps, 16384);
     }
     ts.getLocalName = getLocalName;
     function isLocalName(node) {
-        return (getEmitFlags(node) & 262144) !== 0;
+        return (getEmitFlags(node) & 16384) !== 0;
     }
     ts.isLocalName = isLocalName;
     function getExportName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 131072);
+        return getName(node, allowComments, allowSourceMaps, 8192);
     }
     ts.getExportName = getExportName;
     function isExportName(node) {
-        return (getEmitFlags(node) & 131072) !== 0;
+        return (getEmitFlags(node) & 8192) !== 0;
     }
     ts.isExportName = isExportName;
     function getDeclarationName(node, allowComments, allowSourceMaps) {
@@ -12428,15 +12350,15 @@ var ts;
     ts.getDeclarationName = getDeclarationName;
     function getName(node, allowComments, allowSourceMaps, emitFlags) {
         if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
-            var name_13 = getMutableClone(node.name);
+            var name_10 = getMutableClone(node.name);
             emitFlags |= getEmitFlags(node.name);
             if (!allowSourceMaps)
-                emitFlags |= 1536;
+                emitFlags |= 48;
             if (!allowComments)
-                emitFlags |= 49152;
+                emitFlags |= 1536;
             if (emitFlags)
-                setEmitFlags(name_13, emitFlags);
-            return name_13;
+                setEmitFlags(name_10, emitFlags);
+            return name_10;
         }
         return getGeneratedNameForNode(node);
     }
@@ -12451,14 +12373,18 @@ var ts;
         var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), name);
         var emitFlags;
         if (!allowSourceMaps)
-            emitFlags |= 1536;
+            emitFlags |= 48;
         if (!allowComments)
-            emitFlags |= 49152;
+            emitFlags |= 1536;
         if (emitFlags)
             setEmitFlags(qualifiedName, emitFlags);
         return qualifiedName;
     }
     ts.getNamespaceMemberName = getNamespaceMemberName;
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : createBlock([createReturn(node, node)], node, multiLine);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
     function isUseStrictPrologue(node) {
         return node.expression.text === "use strict";
     }
@@ -12485,7 +12411,7 @@ var ts;
         }
         while (statementOffset < numStatements) {
             var statement = source[statementOffset];
-            if (getEmitFlags(statement) & 8388608) {
+            if (getEmitFlags(statement) & 524288) {
                 target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
             }
             else {
@@ -12496,10 +12422,17 @@ var ts;
         return statementOffset;
     }
     ts.addPrologueDirectives = addPrologueDirectives;
-    function ensureUseStrict(node) {
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
+    function ensureUseStrict(statements) {
         var foundUseStrict = false;
-        for (var _i = 0, _a = node.statements; _i < _a.length; _i++) {
-            var statement = _a[_i];
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
             if (ts.isPrologueDirective(statement)) {
                 if (isUseStrictPrologue(statement)) {
                     foundUseStrict = true;
@@ -12511,11 +12444,11 @@ var ts;
             }
         }
         if (!foundUseStrict) {
-            var statements = [];
-            statements.push(startOnNewLine(createStatement(createLiteral("use strict"))));
-            return updateSourceFileNode(node, statements.concat(node.statements));
+            return createNodeArray([
+                startOnNewLine(createStatement(createLiteral("use strict")))
+            ].concat(statements), statements);
         }
-        return node;
+        return statements;
     }
     ts.ensureUseStrict = ensureUseStrict;
     function parenthesizeBinaryOperand(binaryOperator, operand, isLeftSideOfBinary, leftOperand) {
@@ -12590,6 +12523,21 @@ var ts;
         }
         return 0;
     }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(193, 54);
+        var emittedCondition = skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1) {
+            return createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        return e.kind === 192 && e.operatorToken.kind === 25
+            ? createParen(e)
+            : e;
+    }
     function parenthesizeForNew(expression) {
         var emittedExpression = skipPartiallyEmittedExpressions(expression);
         switch (emittedExpression.kind) {
@@ -12695,7 +12643,7 @@ var ts;
                 case 177:
                     node = node.expression;
                     continue;
-                case 293:
+                case 294:
                     node = node.expression;
                     continue;
             }
@@ -12743,7 +12691,7 @@ var ts;
     }
     ts.skipAssertions = skipAssertions;
     function skipPartiallyEmittedExpressions(node) {
-        while (node.kind === 293) {
+        while (node.kind === 294) {
             node = node.expression;
         }
         return node;
@@ -12765,8 +12713,8 @@ var ts;
     }
     ts.setOriginalNode = setOriginalNode;
     function mergeEmitNode(sourceEmitNode, destEmitNode) {
-        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges;
-        if (!destEmitNode && (flags || commentRange || sourceMapRange || tokenSourceMapRanges))
+        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
+        if (!destEmitNode)
             destEmitNode = {};
         if (flags)
             destEmitNode.flags = flags;
@@ -12776,6 +12724,10 @@ var ts;
             destEmitNode.sourceMapRange = sourceMapRange;
         if (tokenSourceMapRanges)
             destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
         return destEmitNode;
     }
     function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
@@ -12809,6 +12761,7 @@ var ts;
         }
         return node.emitNode;
     }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
     function getEmitFlags(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.flags;
@@ -12819,11 +12772,22 @@ var ts;
         return node;
     }
     ts.setEmitFlags = setEmitFlags;
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
     function setSourceMapRange(node, range) {
         getOrCreateEmitNode(node).sourceMapRange = range;
         return node;
     }
     ts.setSourceMapRange = setSourceMapRange;
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
     function setTokenSourceMapRange(node, token, range) {
         var emitNode = getOrCreateEmitNode(node);
         var tokenSourceMapRanges = emitNode.tokenSourceMapRanges || (emitNode.tokenSourceMapRanges = ts.createMap());
@@ -12831,27 +12795,16 @@ var ts;
         return node;
     }
     ts.setTokenSourceMapRange = setTokenSourceMapRange;
-    function setCommentRange(node, range) {
-        getOrCreateEmitNode(node).commentRange = range;
-        return node;
-    }
-    ts.setCommentRange = setCommentRange;
     function getCommentRange(node) {
         var emitNode = node.emitNode;
         return (emitNode && emitNode.commentRange) || node;
     }
     ts.getCommentRange = getCommentRange;
-    function getSourceMapRange(node) {
-        var emitNode = node.emitNode;
-        return (emitNode && emitNode.sourceMapRange) || node;
-    }
-    ts.getSourceMapRange = getSourceMapRange;
-    function getTokenSourceMapRange(node, token) {
-        var emitNode = node.emitNode;
-        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
-        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
     }
-    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    ts.setCommentRange = setCommentRange;
     function getConstantValue(node) {
         var emitNode = node.emitNode;
         return emitNode && emitNode.constantValue;
@@ -12863,6 +12816,103 @@ var ts;
         return node;
     }
     ts.setConstantValue = setConstantValue;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
+        if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var helpers = getEmitHelpers(node);
+            if (helpers) {
+                for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                    var helper = helpers_1[_i];
+                    if (!helper.scoped) {
+                        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                        var emitNode = getOrCreateEmitNode(parseNode);
+                        return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
+                    }
+                }
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                var helper = helpers_2[_i];
+                if (!ts.contains(emitNode.helpers, helper)) {
+                    emitNode.helpers = ts.append(emitNode.helpers, helper);
+                }
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                if (!ts.contains(targetEmitNode.helpers, helper)) {
+                    targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
+                }
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0;
+        if (x.priority === y.priority)
+            return 0;
+        if (x.priority === undefined)
+            return 1;
+        if (y.priority === undefined)
+            return -1;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
     function setTextRange(node, location) {
         if (location) {
             node.pos = location.pos;
@@ -12889,8 +12939,8 @@ var ts;
     function getLocalNameForExternalImport(node, sourceFile) {
         var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
         if (namespaceDeclaration && !ts.isDefaultImport(node)) {
-            var name_14 = namespaceDeclaration.name;
-            return ts.isGeneratedIdentifier(name_14) ? name_14 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
+            var name_11 = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name_11) ? name_11 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
         }
         if (node.kind === 235 && node.importClause) {
             return getGeneratedNameForNode(node);
@@ -12933,221 +12983,291 @@ var ts;
     function tryGetModuleNameFromDeclaration(declaration, host, resolver, compilerOptions) {
         return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
     }
-    function transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis, convertObjectRest) {
-        var multiLine = false;
-        var singleLine = false;
-        var statementsLocation;
-        var closeBraceLocation;
-        var statements = [];
-        var body = node.body;
-        var statementOffset;
-        context.startLexicalEnvironment();
-        if (ts.isBlock(body)) {
-            statementOffset = addPrologueDirectives(statements, body.statements, false, visitor);
-        }
-        addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-        addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest);
-        addRestParameterIfNeeded(statements, node, false);
-        if (!multiLine && statements.length > 0) {
-            multiLine = true;
-        }
-        if (ts.isBlock(body)) {
-            statementsLocation = body.statements;
-            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
-            if (!multiLine && body.multiLine) {
-                multiLine = true;
-            }
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.initializer;
         }
-        else {
-            ts.Debug.assert(node.kind === 185);
-            statementsLocation = ts.moveRangeEnd(body, -1);
-            var equalsGreaterThanToken = node.equalsGreaterThanToken;
-            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
-                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
-                    singleLine = true;
-                }
-                else {
-                    multiLine = true;
-                }
-            }
-            var expression = ts.visitNode(body, visitor, ts.isExpression);
-            var returnStatement = createReturn(expression, body);
-            setEmitFlags(returnStatement, 12288 | 1024 | 32768);
-            statements.push(returnStatement);
-            closeBraceLocation = body;
+        if (ts.isPropertyAssignment(bindingElement)) {
+            return ts.isAssignmentExpression(bindingElement.initializer, true)
+                ? bindingElement.initializer.right
+                : undefined;
         }
-        var lexicalEnvironment = context.endLexicalEnvironment();
-        ts.addRange(statements, lexicalEnvironment);
-        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
-            multiLine = true;
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            return bindingElement.objectAssignmentInitializer;
         }
-        var block = createBlock(createNodeArray(statements, statementsLocation), node.body, multiLine);
-        if (!multiLine && singleLine) {
-            setEmitFlags(block, 32);
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return bindingElement.right;
         }
-        if (closeBraceLocation) {
-            setTokenSourceMapRange(block, 17, closeBraceLocation);
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
         }
-        setOriginalNode(block, node.body);
-        return block;
     }
-    ts.transformFunctionBody = transformFunctionBody;
-    function addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis) {
-        if (node.transformFlags & 524288 && node.kind !== 185) {
-            captureThisForNode(statements, node, createThis(), enableSubstitutionsForCapturedThis);
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            return bindingElement.name;
+        }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 257:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 258:
+                    return bindingElement.name;
+                case 259:
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            return undefined;
         }
+        if (ts.isAssignmentExpression(bindingElement, true)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadExpression(bindingElement)) {
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        return bindingElement;
     }
-    ts.addCaptureThisForNodeIfNeeded = addCaptureThisForNodeIfNeeded;
-    function captureThisForNode(statements, node, initializer, enableSubstitutionsForCapturedThis, originalStatement) {
-        enableSubstitutionsForCapturedThis();
-        var captureThisStatement = createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration("_this", undefined, initializer)
-        ]), originalStatement);
-        setEmitFlags(captureThisStatement, 49152 | 8388608);
-        setSourceMapRange(captureThisStatement, node);
-        statements.push(captureThisStatement);
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 144:
+            case 174:
+                return bindingElement.dotDotDotToken;
+            case 196:
+            case 259:
+                return bindingElement;
+        }
+        return undefined;
     }
-    ts.captureThisForNode = captureThisForNode;
-    function shouldAddDefaultValueAssignments(node) {
-        return (node.transformFlags & 2097152) !== 0;
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 174:
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 257:
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 259:
+                return bindingElement.name;
+        }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
+                ? target.expression
+                : target;
+        }
+        ts.Debug.fail("Invalid property name for binding element.");
     }
-    function addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest) {
-        if (!shouldAddDefaultValueAssignments(node)) {
-            return;
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 172:
+            case 173:
+            case 175:
+                return name.elements;
+            case 176:
+                return name.properties;
         }
-        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
-            var parameter = _a[_i];
-            var name_15 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
-            if (dotDotDotToken) {
-                continue;
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpread(element.name, element), element);
             }
-            if (ts.isBindingPattern(name_15)) {
-                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_15, initializer, visitor, convertObjectRest);
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
+        }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
+    }
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpreadAssignment(element.name, element), element);
             }
-            else if (initializer) {
-                addDefaultValueAssignmentForInitializer(statements, parameter, name_15, initializer, visitor);
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
             }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
         }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
     }
-    ts.addDefaultValueAssignmentsIfNeeded = addDefaultValueAssignmentsIfNeeded;
-    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer, visitor, convertObjectRest) {
-        var temp = getGeneratedNameForNode(parameter);
-        if (name.elements.length > 0) {
-            statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList(ts.flattenParameterDestructuring(parameter, temp, visitor, convertObjectRest))), 8388608));
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173:
+            case 175:
+                return convertToArrayAssignmentPattern(node);
+            case 172:
+            case 176:
+                return convertToObjectAssignmentPattern(node);
         }
-        else if (initializer) {
-            statements.push(setEmitFlags(createStatement(createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 8388608));
+    }
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
         }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
     }
-    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer, visitor) {
-        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
-        var statement = createIf(createStrictEquality(getSynthesizedClone(name), createVoidZero()), setEmitFlags(createBlock([
-            createStatement(createAssignment(setEmitFlags(getMutableClone(name), 1536), setEmitFlags(initializer, 1536 | getEmitFlags(initializer)), parameter))
-        ], parameter), 32 | 1024 | 12288), undefined, parameter);
-        statement.startsOnNewLine = true;
-        setEmitFlags(statement, 12288 | 1024 | 8388608);
-        statements.push(statement);
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
+        }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
     }
-    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
-        return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
+        }
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
     }
-    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
-        var parameter = ts.lastOrUndefined(node.parameters);
-        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
-            return;
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMap();
+        var exportedBindings = ts.createMap();
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals = undefined;
+        var hasExportStarsToExportValues = false;
+        var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
+        var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(undefined, undefined, createImportClause(undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
+        if (externalHelpersImportDeclaration) {
+            externalImports.push(externalHelpersImportDeclaration);
         }
-        var declarationName = getMutableClone(parameter.name);
-        setEmitFlags(declarationName, 1536);
-        var expressionName = getSynthesizedClone(parameter.name);
-        var restIndex = node.parameters.length - 1;
-        var temp = createLoopVariable();
-        statements.push(setEmitFlags(createVariableStatement(undefined, createVariableDeclarationList([
-            createVariableDeclaration(declarationName, undefined, createArrayLiteral([]))
-        ]), parameter), 8388608));
-        var forStatement = createFor(createVariableDeclarationList([
-            createVariableDeclaration(temp, undefined, createLiteral(restIndex))
-        ], parameter), createLessThan(temp, createPropertyAccess(createIdentifier("arguments"), "length"), parameter), createPostfixIncrement(temp, parameter), createBlock([
-            startOnNewLine(createStatement(createAssignment(createElementAccess(expressionName, createSubtract(temp, createLiteral(restIndex))), createElementAccess(createIdentifier("arguments"), temp)), parameter))
-        ]));
-        setEmitFlags(forStatement, 8388608);
-        startOnNewLine(forStatement);
-        statements.push(forStatement);
-    }
-    ts.addRestParameterIfNeeded = addRestParameterIfNeeded;
-    function convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, convertObjectRest) {
-        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
-        var initializer = node.initializer;
-        var statements = [];
-        var counter = convertObjectRest ? undefined : createLoopVariable();
-        var rhsReference = expression.kind === 70
-            ? createUniqueName(expression.text)
-            : createTempVariable(undefined);
-        var elementAccess = convertObjectRest ? rhsReference : createElementAccess(rhsReference, counter);
-        if (ts.isVariableDeclarationList(initializer)) {
-            if (initializer.flags & 3) {
-                enableSubstitutionsForBlockScopedBindings();
-            }
-            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
-            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
-                var declarations = ts.flattenVariableDestructuring(firstOriginalDeclaration, elementAccess, visitor, undefined, convertObjectRest);
-                var declarationList = createVariableDeclarationList(declarations, initializer);
-                setOriginalNode(declarationList, initializer);
-                var firstDeclaration = declarations[0];
-                var lastDeclaration = ts.lastOrUndefined(declarations);
-                setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
-                statements.push(createVariableStatement(undefined, declarationList));
-            }
-            else {
-                statements.push(createVariableStatement(undefined, setOriginalNode(createVariableDeclarationList([
-                    createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : createTempVariable(undefined), undefined, createElementAccess(rhsReference, counter))
-                ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 235:
+                    externalImports.push(node);
+                    break;
+                case 234:
+                    if (node.moduleReference.kind === 245) {
+                        externalImports.push(node);
+                    }
+                    break;
+                case 241:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports[specifier.name.text]) {
+                                var name_12 = specifier.propertyName || specifier.name;
+                                ts.multiMapAdd(exportSpecifiers, name_12.text, specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name_12)
+                                    || resolver.getReferencedValueDeclaration(name_12);
+                                if (decl) {
+                                    ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports[specifier.name.text] = true;
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 240:
+                    if (node.isExportEquals && !exportEquals) {
+                        exportEquals = node;
+                    }
+                    break;
+                case 205:
+                    if (ts.hasModifier(node, 1)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 225:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_13 = node.name;
+                            if (!uniqueExports[name_13.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_13);
+                                uniqueExports[name_13.text] = true;
+                                exportedNames = ts.append(exportedNames, name_13);
+                            }
+                        }
+                    }
+                    break;
+                case 226:
+                    if (ts.hasModifier(node, 1)) {
+                        if (ts.hasModifier(node, 512)) {
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            var name_14 = node.name;
+                            if (!uniqueExports[name_14.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_14);
+                                uniqueExports[name_14.text] = true;
+                                exportedNames = ts.append(exportedNames, name_14);
+                            }
+                        }
+                    }
+                    break;
             }
         }
-        else {
-            var assignment = createAssignment(initializer, elementAccess);
-            if (ts.isDestructuringAssignment(assignment)) {
-                statements.push(createStatement(ts.flattenDestructuringAssignment(context, assignment, false, context.hoistVariableDeclaration, visitor, convertObjectRest)));
-            }
-            else {
-                assignment.end = initializer.end;
-                statements.push(createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
             }
         }
-        var bodyLocation;
-        var statementsLocation;
-        if (convertedLoopBodyStatements) {
-            ts.addRange(statements, convertedLoopBodyStatements);
-        }
-        else {
-            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
-            if (ts.isBlock(statement)) {
-                ts.addRange(statements, statement.statements);
-                bodyLocation = statement;
-                statementsLocation = statement.statements;
-            }
-            else {
-                statements.push(statement);
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            if (!uniqueExports[decl.name.text]) {
+                uniqueExports[decl.name.text] = true;
+                exportedNames = ts.append(exportedNames, decl.name);
             }
         }
-        setEmitFlags(expression, 1536 | getEmitFlags(expression));
-        var body = createBlock(createNodeArray(statements, statementsLocation), bodyLocation);
-        setEmitFlags(body, 1536 | 12288);
-        var forStatement;
-        if (convertObjectRest) {
-            forStatement = createForOf(createVariableDeclarationList([
-                createVariableDeclaration(rhsReference, undefined, undefined, node.expression)
-            ], node.expression), node.expression, body, node);
-        }
-        else {
-            forStatement = createFor(setEmitFlags(createVariableDeclarationList([
-                createVariableDeclaration(counter, undefined, createLiteral(0), ts.moveRangePos(node.expression, -1)),
-                createVariableDeclaration(rhsReference, undefined, expression, node.expression)
-            ], node.expression), 16777216), createLessThan(counter, createPropertyAccess(rhsReference, "length"), node.expression), createPostfixIncrement(counter, node.expression), body, node);
-        }
-        setEmitFlags(forStatement, 8192);
-        return forStatement;
+        return exportedNames;
     }
-    ts.convertForOf = convertForOf;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -13545,29 +13665,31 @@ var ts;
                     visitNode(cbNode, node.type);
             case 278:
                 return visitNodes(cbNodes, node.tags);
-            case 280:
+            case 281:
                 return visitNode(cbNode, node.preParameterName) ||
                     visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.postParameterName);
-            case 281:
-                return visitNode(cbNode, node.typeExpression);
             case 282:
                 return visitNode(cbNode, node.typeExpression);
             case 283:
-                return visitNodes(cbNodes, node.typeParameters);
+                return visitNode(cbNode, node.typeExpression);
+            case 280:
+                return visitNode(cbNode, node.typeExpression);
             case 284:
+                return visitNodes(cbNodes, node.typeParameters);
+            case 285:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.fullName) ||
                     visitNode(cbNode, node.name) ||
                     visitNode(cbNode, node.jsDocTypeLiteral);
-            case 286:
+            case 287:
                 return visitNodes(cbNodes, node.jsDocPropertyTags);
-            case 285:
+            case 286:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.name);
-            case 293:
+            case 294:
                 return visitNode(cbNode, node.expression);
-            case 287:
+            case 288:
                 return visitNode(cbNode, node.literal);
         }
     }
@@ -13691,7 +13813,7 @@ var ts;
             return sourceFile;
         }
         function addJSDocComment(node) {
-            var comments = ts.getJsDocCommentsFromText(node, sourceFile.text);
+            var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                     var comment = comments_2[_i];
@@ -13699,10 +13821,10 @@ var ts;
                     if (!jsDoc) {
                         continue;
                     }
-                    if (!node.jsDocComments) {
-                        node.jsDocComments = [];
+                    if (!node.jsDoc) {
+                        node.jsDoc = [];
                     }
-                    node.jsDocComments.push(jsDoc);
+                    node.jsDoc.push(jsDoc);
                 }
             }
             return node;
@@ -13717,12 +13839,12 @@ var ts;
                     var saveParent = parent;
                     parent = n;
                     forEachChild(n, visitNode);
-                    if (n.jsDocComments) {
-                        for (var _i = 0, _a = n.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            jsDocComment.parent = n;
-                            parent = jsDocComment;
-                            forEachChild(jsDocComment, visitNode);
+                    if (n.jsDoc) {
+                        for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            jsDoc.parent = n;
+                            parent = jsDoc;
+                            forEachChild(jsDoc, visitNode);
                         }
                     }
                     parent = saveParent;
@@ -16899,8 +17021,8 @@ var ts;
                 return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
             }
             if (decorators || modifiers) {
-                var name_16 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
-                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_16, undefined);
+                var name_15 = createMissingNode(70, true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_15, undefined);
             }
             ts.Debug.fail("Should not have attempted to parse class member declaration.");
         }
@@ -17547,7 +17669,7 @@ var ts;
                 return finishNode(result);
             }
             function parseJSDocLiteralType() {
-                var result = createNode(287);
+                var result = createNode(288);
                 result.literal = parseLiteralTypeNode();
                 return finishNode(result);
             }
@@ -17727,6 +17849,9 @@ var ts;
                     var tag;
                     if (tagName) {
                         switch (tagName.text) {
+                            case "augments":
+                                tag = parseAugmentsTag(atToken, tagName);
+                                break;
                             case "param":
                                 tag = parseParamTag(atToken, tagName);
                                 break;
@@ -17866,7 +17991,7 @@ var ts;
                     if (!typeExpression) {
                         typeExpression = tryParseTypeExpression();
                     }
-                    var result = createNode(280, atToken.pos);
+                    var result = createNode(281, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.preParameterName = preName;
@@ -17877,20 +18002,20 @@ var ts;
                     return finishNode(result);
                 }
                 function parseReturnTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 281; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(281, atToken.pos);
+                    var result = createNode(282, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
                     return finishNode(result);
                 }
                 function parseTypeTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 282; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(282, atToken.pos);
+                    var result = createNode(283, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
@@ -17905,17 +18030,25 @@ var ts;
                         parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                         return undefined;
                     }
-                    var result = createNode(285, atToken.pos);
+                    var result = createNode(286, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.name = name;
                     result.typeExpression = typeExpression;
                     return finishNode(result);
                 }
+                function parseAugmentsTag(atToken, tagName) {
+                    var typeExpression = tryParseTypeExpression();
+                    var result = createNode(280, atToken.pos);
+                    result.atToken = atToken;
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    return finishNode(result);
+                }
                 function parseTypedefTag(atToken, tagName) {
                     var typeExpression = tryParseTypeExpression();
                     skipWhitespace();
-                    var typedefTag = createNode(284, atToken.pos);
+                    var typedefTag = createNode(285, atToken.pos);
                     typedefTag.atToken = atToken;
                     typedefTag.tagName = tagName;
                     typedefTag.fullName = parseJSDocTypeNameWithNamespace(0);
@@ -17932,8 +18065,8 @@ var ts;
                         if (typeExpression.type.kind === 272) {
                             var jsDocTypeReference = typeExpression.type;
                             if (jsDocTypeReference.name.kind === 70) {
-                                var name_17 = jsDocTypeReference.name;
-                                if (name_17.text === "Object") {
+                                var name_16 = jsDocTypeReference.name;
+                                if (name_16.text === "Object") {
                                     typedefTag.jsDocTypeLiteral = scanChildTags();
                                 }
                             }
@@ -17947,7 +18080,7 @@ var ts;
                     }
                     return finishNode(typedefTag);
                     function scanChildTags() {
-                        var jsDocTypeLiteral = createNode(286, scanner.getStartPos());
+                        var jsDocTypeLiteral = createNode(287, scanner.getStartPos());
                         var resumePos = scanner.getStartPos();
                         var canParseTag = true;
                         var seenAsterisk = false;
@@ -18032,19 +18165,19 @@ var ts;
                     return false;
                 }
                 function parseTemplateTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 283; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 284; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
                     var typeParameters = createNodeArray();
                     while (true) {
-                        var name_18 = parseJSDocIdentifierName();
+                        var name_17 = parseJSDocIdentifierName();
                         skipWhitespace();
-                        if (!name_18) {
+                        if (!name_17) {
                             parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                             return undefined;
                         }
-                        var typeParameter = createNode(143, name_18.pos);
-                        typeParameter.name = name_18;
+                        var typeParameter = createNode(143, name_17.pos);
+                        typeParameter.name = name_17;
                         finishNode(typeParameter);
                         typeParameters.push(typeParameter);
                         if (token() === 25) {
@@ -18055,7 +18188,7 @@ var ts;
                             break;
                         }
                     }
-                    var result = createNode(283, atToken.pos);
+                    var result = createNode(284, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeParameters = typeParameters;
@@ -18135,8 +18268,8 @@ var ts;
                     ts.Debug.assert(text === newText.substring(node.pos, node.end));
                 }
                 forEachChild(node, visitNode, visitArray);
-                if (node.jsDocComments) {
-                    for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
+                if (node.jsDoc) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         forEachChild(jsDocComment, visitNode, visitArray);
                     }
@@ -18520,7 +18653,7 @@ var ts;
                 }
                 if (node.name.kind === 142) {
                     var nameExpression = node.name.expression;
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
@@ -18565,7 +18698,7 @@ var ts;
                     var functionType = node.parent;
                     var index = ts.indexOf(functionType.parameters, node);
                     return "arg" + index;
-                case 284:
+                case 285:
                     var parentNode = node.parent && node.parent.parent;
                     var nameFromParentNode = void 0;
                     if (parentNode && parentNode.kind === 205) {
@@ -18640,7 +18773,7 @@ var ts;
                 }
             }
             else {
-                var isJSDocTypedefInJSDocNamespace = node.kind === 284 &&
+                var isJSDocTypedefInJSDocNamespace = node.kind === 285 &&
                     node.name &&
                     node.name.kind === 70 &&
                     node.name.isInJSDocNamespace;
@@ -18745,12 +18878,35 @@ var ts;
                 subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
             }
         }
+        function bindEach(nodes) {
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0;
+                var nodeArrayFlags = 0;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bind(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
         function bindChildrenWorker(node) {
-            if (ts.isInJavaScriptFile(node) && node.jsDocComments) {
-                ts.forEach(node.jsDocComments, bind);
+            if (ts.isInJavaScriptFile(node) && node.jsDoc) {
+                ts.forEach(node.jsDoc, bind);
             }
             if (checkUnreachable(node)) {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 return;
             }
             switch (node.kind) {
@@ -18815,7 +18971,7 @@ var ts;
                     bindCallExpressionFlow(node);
                     break;
                 default:
-                    ts.forEachChild(node, bind);
+                    bindEachChild(node);
                     break;
             }
         }
@@ -19118,7 +19274,7 @@ var ts;
             }
             return undefined;
         }
-        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
             var flowLabel = node.kind === 215 ? breakTarget : continueTarget;
             if (flowLabel) {
                 addAntecedent(flowLabel, currentFlow);
@@ -19131,11 +19287,11 @@ var ts;
                 var activeLabel = findActiveLabel(node.label.text);
                 if (activeLabel) {
                     activeLabel.referenced = true;
-                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                 }
             }
             else {
-                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
             }
         }
         function bindTryStatement(node) {
@@ -19186,6 +19342,8 @@ var ts;
             currentFlow = finishFlowLabel(postSwitchLabel);
         }
         function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
             var clauses = node.clauses;
             var fallthroughFlow = unreachableFlow;
             for (var i = 0; i < clauses.length; i++) {
@@ -19205,13 +19363,15 @@ var ts;
                     errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                 }
             }
+            clauses.transformFlags = subtreeTransformFlags | 536870912;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
         }
         function bindCaseClause(node) {
             var saveCurrentFlow = currentFlow;
             currentFlow = preSwitchCaseFlow;
             bind(node.expression);
             currentFlow = saveCurrentFlow;
-            ts.forEach(node.statements, bind);
+            bindEach(node.statements);
         }
         function pushActiveLabel(name, breakTarget, continueTarget) {
             var activeLabel = {
@@ -19297,19 +19457,19 @@ var ts;
                 var saveTrueTarget = currentTrueTarget;
                 currentTrueTarget = currentFalseTarget;
                 currentFalseTarget = saveTrueTarget;
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 currentFalseTarget = currentTrueTarget;
                 currentTrueTarget = saveTrueTarget;
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (node.operator === 42 || node.operator === 43) {
                     bindAssignmentTargetFlow(node.operand);
                 }
             }
         }
         function bindPostfixUnaryExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.operator === 42 || node.operator === 43) {
                 bindAssignmentTargetFlow(node.operand);
             }
@@ -19327,7 +19487,7 @@ var ts;
                 }
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                     bindAssignmentTargetFlow(node.left);
                     if (operator === 57 && node.left.kind === 178) {
@@ -19340,7 +19500,7 @@ var ts;
             }
         }
         function bindDeleteExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.expression.kind === 177) {
                 bindAssignmentTargetFlow(node.expression);
             }
@@ -19373,7 +19533,7 @@ var ts;
             }
         }
         function bindVariableDeclarationFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.initializer || node.parent.parent.kind === 212 || node.parent.parent.kind === 213) {
                 bindInitializedVariableFlow(node);
             }
@@ -19384,12 +19544,12 @@ var ts;
                 expr = expr.expression;
             }
             if (expr.kind === 184 || expr.kind === 185) {
-                ts.forEach(node.typeArguments, bind);
-                ts.forEach(node.arguments, bind);
+                bindEach(node.typeArguments);
+                bindEach(node.arguments);
                 bind(node.expression);
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
             }
             if (node.expression.kind === 177) {
                 var propertyAccess = node.expression;
@@ -19405,7 +19565,7 @@ var ts;
                 case 229:
                 case 176:
                 case 161:
-                case 286:
+                case 287:
                 case 270:
                     return 1;
                 case 227:
@@ -19474,7 +19634,7 @@ var ts;
                 case 176:
                 case 227:
                 case 270:
-                case 286:
+                case 287:
                     return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
                 case 158:
                 case 159:
@@ -19768,8 +19928,8 @@ var ts;
         }
         function updateStrictModeStatementList(statements) {
             if (!inStrictMode) {
-                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
-                    var statement = statements_1[_i];
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
                     if (!ts.isPrologueDirective(statement)) {
                         return;
                     }
@@ -19789,7 +19949,7 @@ var ts;
                 case 70:
                     if (node.isInJSDocNamespace) {
                         var parentNode = node.parent;
-                        while (parentNode && parentNode.kind !== 284) {
+                        while (parentNode && parentNode.kind !== 285) {
                             parentNode = parentNode.parent;
                         }
                         bindBlockScopedDeclaration(parentNode, 524288, 793064);
@@ -19859,7 +20019,7 @@ var ts;
                 case 146:
                 case 271:
                     return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 536870912 : 0), 0);
-                case 285:
+                case 286:
                     return bindJSDocProperty(node);
                 case 257:
                 case 258:
@@ -19903,7 +20063,7 @@ var ts;
                     return bindFunctionOrConstructorType(node);
                 case 161:
                 case 170:
-                case 286:
+                case 287:
                 case 270:
                     return bindAnonymousDeclaration(node, 2048, "__type");
                 case 176:
@@ -19922,7 +20082,7 @@ var ts;
                     return bindClassLikeDeclaration(node);
                 case 227:
                     return bindBlockScopedDeclaration(node, 64, 792968);
-                case 284:
+                case 285:
                     if (!node.fullName || node.fullName.kind === 70) {
                         return bindBlockScopedDeclaration(node, 524288, 793064);
                     }
@@ -19996,12 +20156,12 @@ var ts;
                 return;
             }
             else {
-                var parent_5 = node.parent;
-                if (!ts.isExternalModule(parent_5)) {
+                var parent_4 = node.parent;
+                if (!ts.isExternalModule(parent_4)) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                     return;
                 }
-                if (!parent_5.isDeclarationFile) {
+                if (!parent_4.isDeclarationFile) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                     return;
                 }
@@ -20287,12 +20447,12 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608
+        if (subtreeFlags & 524288
             || isSuperOrSuperProperty(expression, expressionKind)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function isSuperOrSuperProperty(node, kind) {
         switch (kind) {
@@ -20311,28 +20471,28 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 524288) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~545281365;
+        return transformFlags & ~537396545;
     }
     function computeBinaryExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var operatorTokenKind = node.operatorToken.kind;
         var leftKind = node.left.kind;
         if (operatorTokenKind === 57 && leftKind === 176) {
-            transformFlags |= 48 | 3072 | 49152;
+            transformFlags |= 8 | 192 | 3072;
         }
         else if (operatorTokenKind === 57 && leftKind === 175) {
-            transformFlags |= 3072 | 49152;
+            transformFlags |= 192 | 3072;
         }
         else if (operatorTokenKind === 39
             || operatorTokenKind === 61) {
-            transformFlags |= 768;
+            transformFlags |= 32;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeParameter(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20342,21 +20502,21 @@ var ts;
         var dotDotDotToken = node.dotDotDotToken;
         if (node.questionToken
             || node.type
-            || subtreeFlags & 65536
+            || subtreeFlags & 4096
             || ts.isThisIdentifier(name)) {
             transformFlags |= 3;
         }
         if (modifierFlags & 92) {
-            transformFlags |= 3 | 4194304;
+            transformFlags |= 3 | 262144;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 67108864 || initializer || dotDotDotToken) {
-            transformFlags |= 3072 | 2097152;
+        if (subtreeFlags & 8388608 || initializer || dotDotDotToken) {
+            transformFlags |= 192 | 131072;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~536872257;
     }
     function computeParenthesizedExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20367,11 +20527,11 @@ var ts;
             || expressionKind === 182) {
             transformFlags |= 3;
         }
-        if (expressionTransformFlags & 16384) {
-            transformFlags |= 16384;
+        if (expressionTransformFlags & 1024) {
+            transformFlags |= 1024;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeClassDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -20380,35 +20540,35 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 3072;
-            if ((subtreeFlags & 4390912)
+            transformFlags = subtreeFlags | 192;
+            if ((subtreeFlags & 274432)
                 || node.typeParameters) {
                 transformFlags |= 3;
             }
-            if (subtreeFlags & 1048576) {
-                transformFlags |= 262144;
+            if (subtreeFlags & 65536) {
+                transformFlags |= 16384;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeClassExpression(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
-        if (subtreeFlags & 4390912
+        var transformFlags = subtreeFlags | 192;
+        if (subtreeFlags & 274432
             || node.typeParameters) {
             transformFlags |= 3;
         }
-        if (subtreeFlags & 1048576) {
-            transformFlags |= 262144;
+        if (subtreeFlags & 65536) {
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~559895893;
+        return transformFlags & ~539358529;
     }
     function computeHeritageClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         switch (node.token) {
             case 84:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 107:
                 transformFlags |= 3;
@@ -20418,23 +20578,23 @@ var ts;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeCatchClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~537920833;
     }
     function computeExpressionWithTypeArguments(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.typeArguments) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeConstructor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20442,11 +20602,14 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeMethod(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (node.decorators
             || ts.hasModifier(node, 2270)
             || node.typeParameters
@@ -20454,14 +20617,17 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computeAccessor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20471,16 +20637,19 @@ var ts;
             || !node.body) {
             transformFlags |= 3;
         }
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
+        }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~975983957;
+        return transformFlags & ~601015617;
     }
     function computePropertyDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags | 3;
         if (node.initializer) {
-            transformFlags |= 131072;
+            transformFlags |= 8192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeFunctionDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -20490,27 +20659,27 @@ var ts;
             transformFlags = 3;
         }
         else {
-            transformFlags = subtreeFlags | 268435456;
+            transformFlags = subtreeFlags | 33554432;
             if (modifierFlags & 2270
                 || node.typeParameters
                 || node.type) {
                 transformFlags |= 3;
             }
             if (modifierFlags & 256) {
-                transformFlags |= 192;
+                transformFlags |= 16;
             }
-            if (subtreeFlags & 8388608) {
-                transformFlags |= 48;
+            if (subtreeFlags & 1048576) {
+                transformFlags |= 8;
             }
-            if (subtreeFlags & 2621440) {
-                transformFlags |= 3072;
+            if (subtreeFlags & 163840) {
+                transformFlags |= 192;
             }
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                transformFlags |= 12288;
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                transformFlags |= 768;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeFunctionExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20520,63 +20689,60 @@ var ts;
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 2621440) {
-            transformFlags |= 3072;
+        if (subtreeFlags & 163840) {
+            transformFlags |= 192;
         }
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-            transformFlags |= 12288;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+            transformFlags |= 768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~980243797;
+        return transformFlags & ~601281857;
     }
     function computeArrowFunction(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 3072;
+        var transformFlags = subtreeFlags | 192;
         if (ts.hasModifier(node, 2270)
             || node.typeParameters
             || node.type) {
             transformFlags |= 3;
         }
         if (ts.hasModifier(node, 256)) {
-            transformFlags |= 192;
+            transformFlags |= 16;
         }
-        if (subtreeFlags & 8388608) {
-            transformFlags |= 48;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
-        if (subtreeFlags & 262144) {
-            transformFlags |= 524288;
+        if (subtreeFlags & 16384) {
+            transformFlags |= 32768;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~979719509;
+        return transformFlags & ~601249089;
     }
     function computePropertyAccess(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         var expression = node.expression;
         var expressionKind = expression.kind;
         if (expressionKind === 96) {
-            transformFlags |= 262144;
+            transformFlags |= 16384;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var nameKind = node.name.kind;
-        if (nameKind === 172) {
-            transformFlags |= 48 | 3072 | 67108864;
-        }
-        else if (nameKind === 173) {
-            transformFlags |= 3072 | 67108864;
+        transformFlags |= 192 | 8388608;
+        if (subtreeFlags & 1048576) {
+            transformFlags |= 8;
         }
         if (node.type) {
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeVariableStatement(node, subtreeFlags) {
         var transformFlags;
@@ -20587,21 +20753,21 @@ var ts;
         }
         else {
             transformFlags = subtreeFlags;
-            if (declarationListTransformFlags & 67108864) {
-                transformFlags |= 3072;
+            if (declarationListTransformFlags & 8388608) {
+                transformFlags |= 192;
             }
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeLabeledStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (subtreeFlags & 33554432
+        if (subtreeFlags & 4194304
             && ts.isIterationStatement(node, true)) {
-            transformFlags |= 3072;
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeImportEquals(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -20609,15 +20775,15 @@ var ts;
             transformFlags |= 3;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeExpressionStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        if (node.expression.transformFlags & 16384) {
-            transformFlags |= 3072;
+        if (node.expression.transformFlags & 1024) {
+            transformFlags |= 192;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~536892757;
+        return transformFlags & ~536872257;
     }
     function computeModuleDeclaration(node, subtreeFlags) {
         var transformFlags = 3;
@@ -20626,26 +20792,26 @@ var ts;
             transformFlags |= subtreeFlags;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~839734613;
+        return transformFlags & ~574674241;
     }
     function computeVariableDeclarationList(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 268435456;
-        if (subtreeFlags & 67108864) {
-            transformFlags |= 3072;
+        var transformFlags = subtreeFlags | 33554432;
+        if (subtreeFlags & 8388608) {
+            transformFlags |= 192;
         }
         if (node.flags & 3) {
-            transformFlags |= 3072 | 33554432;
+            transformFlags |= 192 | 4194304;
         }
         node.transformFlags = transformFlags | 536870912;
-        return transformFlags & ~604001621;
+        return transformFlags & ~546309441;
     }
     function computeOther(node, kind, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var excludeFlags = 536892757;
+        var excludeFlags = 536872257;
         switch (kind) {
             case 119:
             case 189:
-                transformFlags |= 192;
+                transformFlags |= 16;
                 break;
             case 113:
             case 111:
@@ -20669,10 +20835,10 @@ var ts;
             case 250:
             case 251:
             case 252:
-                transformFlags |= 12;
+                transformFlags |= 4;
                 break;
             case 213:
-                transformFlags |= 48;
+                transformFlags |= 8;
             case 12:
             case 13:
             case 14:
@@ -20681,10 +20847,10 @@ var ts;
             case 181:
             case 258:
             case 114:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 195:
-                transformFlags |= 3072 | 134217728;
+                transformFlags |= 192 | 16777216;
                 break;
             case 118:
             case 132:
@@ -20721,73 +20887,79 @@ var ts;
                 excludeFlags = -3;
                 break;
             case 142:
-                transformFlags |= 16777216;
-                if (subtreeFlags & 262144) {
-                    transformFlags |= 1048576;
+                transformFlags |= 2097152;
+                if (subtreeFlags & 16384) {
+                    transformFlags |= 65536;
                 }
                 break;
             case 196:
+                transformFlags |= 192 | 524288;
+                break;
             case 259:
-                transformFlags |= 8388608;
+                transformFlags |= 8 | 1048576;
                 break;
-            case 174:
-                if (node.dotDotDotToken) {
-                    transformFlags |= 8388608;
-                }
             case 96:
-                transformFlags |= 3072;
+                transformFlags |= 192;
                 break;
             case 98:
-                transformFlags |= 262144;
+                transformFlags |= 16384;
                 break;
             case 172:
-            case 173:
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48 | 67108864;
+                transformFlags |= 192 | 8388608;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 8 | 1048576;
                 }
-                else {
-                    transformFlags |= 3072 | 67108864;
+                excludeFlags = 537396545;
+                break;
+            case 173:
+                transformFlags |= 192 | 8388608;
+                excludeFlags = 537396545;
+                break;
+            case 174:
+                transformFlags |= 192;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 524288;
                 }
                 break;
             case 145:
-                transformFlags |= 3 | 65536;
+                transformFlags |= 3 | 4096;
                 break;
             case 176:
-                excludeFlags = 554784085;
-                if (subtreeFlags & 16777216) {
-                    transformFlags |= 3072;
+                excludeFlags = 540087617;
+                if (subtreeFlags & 2097152) {
+                    transformFlags |= 192;
                 }
-                if (subtreeFlags & 1048576) {
-                    transformFlags |= 262144;
+                if (subtreeFlags & 65536) {
+                    transformFlags |= 16384;
                 }
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 48;
+                if (subtreeFlags & 1048576) {
+                    transformFlags |= 8;
                 }
                 break;
             case 175:
             case 180:
-                excludeFlags = 545281365;
-                if (subtreeFlags & 8388608) {
-                    transformFlags |= 3072;
+                excludeFlags = 537396545;
+                if (subtreeFlags & 524288) {
+                    transformFlags |= 192;
                 }
                 break;
             case 209:
             case 210:
             case 211:
             case 212:
-                if (subtreeFlags & 33554432) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 4194304) {
+                    transformFlags |= 192;
                 }
                 break;
             case 261:
-                if (subtreeFlags & 524288) {
-                    transformFlags |= 3072;
+                if (subtreeFlags & 32768) {
+                    transformFlags |= 192;
                 }
                 break;
             case 216:
             case 214:
             case 215:
-                transformFlags |= 268435456;
+                transformFlags |= 33554432;
                 break;
         }
         node.transformFlags = transformFlags | 536870912;
@@ -20801,27 +20973,27 @@ var ts;
             case 179:
             case 180:
             case 175:
-                return 545281365;
+                return 537396545;
             case 230:
-                return 839734613;
+                return 574674241;
             case 144:
-                return 604001621;
+                return 536872257;
             case 185:
-                return 979719509;
+                return 601249089;
             case 184:
             case 225:
-                return 980243797;
+                return 601281857;
             case 224:
-                return 604001621;
+                return 546309441;
             case 226:
             case 197:
-                return 559895893;
+                return 539358529;
             case 150:
-                return 975983957;
+                return 601015617;
             case 149:
             case 151:
             case 152:
-                return 975983957;
+                return 601015617;
             case 118:
             case 132:
             case 129:
@@ -20839,9 +21011,14 @@ var ts;
             case 228:
                 return -3;
             case 176:
-                return 554784085;
+                return 540087617;
+            case 256:
+                return 537920833;
+            case 172:
+            case 173:
+                return 537396545;
             default:
-                return 536892757;
+                return 536872257;
         }
     }
     ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
@@ -20933,6 +21110,7 @@ var ts;
             getJsxElementAttributesType: getJsxElementAttributesType,
             getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
             isOptionalParameter: isOptionalParameter,
+            tryGetMemberInModuleExports: tryGetMemberInModuleExports,
             tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
                 return tryFindAmbientModule(moduleName, false);
             }
@@ -20942,6 +21120,7 @@ var ts;
         var intersectionTypes = ts.createMap();
         var stringLiteralTypes = ts.createMap();
         var numericLiteralTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
         var evolvingArrayTypes = [];
         var unknownSymbol = createSymbol(4 | 67108864, "unknown");
         var resolvingSymbol = createSymbol(67108864, "__resolving__");
@@ -20961,7 +21140,6 @@ var ts;
         var voidType = createIntrinsicType(1024, "void");
         var neverType = createIntrinsicType(8192, "never");
         var silentNeverType = createIntrinsicType(8192, "never");
-        var stringOrNumberType = getUnionType([stringType, numberType]);
         var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
         var emptyTypeLiteralSymbol = createSymbol(2048 | 67108864, "__type");
         emptyTypeLiteralSymbol.members = ts.createMap();
@@ -21511,6 +21689,7 @@ var ts;
                     if (!errorLocation ||
                         !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                             !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                             !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                         error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                     }
@@ -21587,6 +21766,16 @@ var ts;
                     return undefined;
             }
         }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            if (meaning === 1920) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
+                    return true;
+                }
+            }
+            return false;
+        }
         function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
             if (meaning & (107455 & ~1024)) {
                 var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 & ~107455, undefined, undefined));
@@ -21692,28 +21881,28 @@ var ts;
             var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
             var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
             if (targetSymbol) {
-                var name_19 = specifier.propertyName || specifier.name;
-                if (name_19.text) {
+                var name_18 = specifier.propertyName || specifier.name;
+                if (name_18.text) {
                     if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                         return moduleSymbol;
                     }
                     var symbolFromVariable = void 0;
                     if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
-                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_19.text);
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_18.text);
                     }
                     else {
-                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_19.text);
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_18.text);
                     }
                     symbolFromVariable = resolveSymbol(symbolFromVariable);
-                    var symbolFromModule = getExportOfModule(targetSymbol, name_19.text);
-                    if (!symbolFromModule && allowSyntheticDefaultImports && name_19.text === "default") {
+                    var symbolFromModule = getExportOfModule(targetSymbol, name_18.text);
+                    if (!symbolFromModule && allowSyntheticDefaultImports && name_18.text === "default") {
                         symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                     }
                     var symbol = symbolFromModule && symbolFromVariable ?
                         combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                         symbolFromModule || symbolFromVariable;
                     if (!symbol) {
-                        error(name_19, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_19));
+                        error(name_18, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_18));
                     }
                     return symbol;
                 }
@@ -21938,6 +22127,12 @@ var ts;
         function getExportsOfModuleAsArray(moduleSymbol) {
             return symbolsToArray(getExportsOfModule(moduleSymbol));
         }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable[memberName];
+            }
+        }
         function getExportsOfSymbol(symbol) {
             return symbol.flags & 1536 ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
         }
@@ -22453,9 +22648,9 @@ var ts;
                     var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2));
                     if (!accessibleSymbolChain ||
                         needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
-                        var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
-                        if (parent_6) {
-                            walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), false);
+                        var parent_5 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
+                        if (parent_5) {
+                            walkSymbol(parent_5, getQualifiedLeftMeaning(meaning), false);
                         }
                     }
                     if (accessibleSymbolChain) {
@@ -22588,12 +22783,12 @@ var ts;
                             var length_1 = outerTypeParameters.length;
                             while (i < length_1) {
                                 var start = i;
-                                var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                 do {
                                     i++;
-                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
+                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                 if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
-                                    writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
+                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                     writePunctuation(writer, 22);
                                 }
                             }
@@ -23017,12 +23212,12 @@ var ts;
                         if (ts.isExternalModuleAugmentation(node)) {
                             return true;
                         }
-                        var parent_8 = getDeclarationContainer(node);
+                        var parent_7 = getDeclarationContainer(node);
                         if (!(ts.getCombinedModifierFlags(node) & 1) &&
-                            !(node.kind !== 234 && parent_8.kind !== 261 && ts.isInAmbientContext(parent_8))) {
-                            return isGlobalSourceFile(parent_8);
+                            !(node.kind !== 234 && parent_7.kind !== 261 && ts.isInAmbientContext(parent_7))) {
+                            return isGlobalSourceFile(parent_7);
                         }
-                        return isDeclarationVisible(parent_8);
+                        return isDeclarationVisible(parent_7);
                     case 147:
                     case 146:
                     case 151:
@@ -23178,15 +23373,15 @@ var ts;
             return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, false);
         }
         function isComputedNonLiteralName(name) {
-            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression.kind);
+            return name.kind === 142 && !ts.isStringOrNumericLiteral(name.expression);
         }
         function getRestType(source, properties, symbol) {
             ts.Debug.assert(!!(source.flags & 32768), "Rest types only support object types right now.");
             var members = ts.createMap();
             var names = ts.createMap();
             for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
-                var name_20 = properties_2[_i];
-                names[ts.getTextOfPropertyName(name_20)] = true;
+                var name_19 = properties_2[_i];
+                names[ts.getTextOfPropertyName(name_19)] = true;
             }
             for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
                 var prop = _b[_a];
@@ -23224,26 +23419,26 @@ var ts;
                     var literalMembers = [];
                     for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                         var element = _a[_i];
-                        if (element.kind !== 198 && !element.dotDotDotToken) {
+                        if (!element.dotDotDotToken) {
                             literalMembers.push(element.propertyName || element.name);
                         }
                     }
                     type = getRestType(parentType, literalMembers, declaration.symbol);
                 }
                 else {
-                    var name_21 = declaration.propertyName || declaration.name;
-                    if (isComputedNonLiteralName(name_21)) {
+                    var name_20 = declaration.propertyName || declaration.name;
+                    if (isComputedNonLiteralName(name_20)) {
                         return anyType;
                     }
                     if (declaration.initializer) {
                         getContextualType(declaration.initializer);
                     }
-                    var text = ts.getTextOfPropertyName(name_21);
+                    var text = ts.getTextOfPropertyName(name_20);
                     type = getTypeOfPropertyOfType(parentType, text) ||
                         isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1) ||
                         getIndexTypeOfType(parentType, 0);
                     if (!type) {
-                        error(name_21, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_21));
+                        error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_20));
                         return unknownType;
                     }
                 }
@@ -23277,29 +23472,9 @@ var ts;
                 type;
         }
         function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
-            if (jsDocType) {
-                return getTypeFromTypeNode(jsDocType);
-            }
-        }
-        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var typeTag = ts.getJSDocTypeTag(declaration);
-            if (typeTag && typeTag.typeExpression) {
-                return typeTag.typeExpression.type;
-            }
-            if (declaration.kind === 223 &&
-                declaration.parent.kind === 224 &&
-                declaration.parent.parent.kind === 205) {
-                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
-                if (annotation && annotation.typeExpression) {
-                    return annotation.typeExpression.type;
-                }
-            }
-            else if (declaration.kind === 144) {
-                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
-                if (paramTag && paramTag.typeExpression) {
-                    return paramTag.typeExpression.type;
-                }
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
             }
             return undefined;
         }
@@ -23322,7 +23497,8 @@ var ts;
                 }
             }
             if (declaration.parent.parent.kind === 212) {
-                return stringType;
+                var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
+                return indexType.flags & (16384 | 262144) ? indexType : stringType;
             }
             if (declaration.parent.parent.kind === 213) {
                 return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
@@ -23333,7 +23509,8 @@ var ts;
             if (declaration.type) {
                 return addOptionality(getTypeFromTypeNode(declaration.type), declaration.questionToken && includeOptionality);
             }
-            if (declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
+            if ((compilerOptions.noImplicitAny || declaration.flags & 2097152) &&
+                declaration.kind === 223 && !ts.isBindingPattern(declaration.name) &&
                 !(ts.getCombinedModifierFlags(declaration) & 1) && !ts.isInAmbientContext(declaration)) {
                 if (!(ts.getCombinedNodeFlags(declaration) & 2) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                     return autoType;
@@ -23472,7 +23649,7 @@ var ts;
                 if (declaration.kind === 240) {
                     return links.type = checkExpression(declaration.expression);
                 }
-                if (declaration.flags & 2097152 && declaration.kind === 285 && declaration.typeExpression) {
+                if (declaration.flags & 2097152 && declaration.kind === 286 && declaration.typeExpression) {
                     return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
                 }
                 if (!pushTypeResolution(symbol, 0)) {
@@ -23482,9 +23659,9 @@ var ts;
                 if (declaration.kind === 192 ||
                     declaration.kind === 177 && declaration.parent.kind === 192) {
                     if (declaration.flags & 2097152) {
-                        var typeTag = ts.getJSDocTypeTag(declaration.parent);
-                        if (typeTag && typeTag.typeExpression) {
-                            return links.type = getTypeFromTypeNode(typeTag.typeExpression.type);
+                        var jsdocType = ts.getJSDocType(declaration.parent);
+                        if (jsdocType) {
+                            return links.type = getTypeFromTypeNode(jsdocType);
                         }
                     }
                     var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 ?
@@ -23785,6 +23962,13 @@ var ts;
                 }
                 baseType = getReturnTypeOfSignature(constructors[0]);
             }
+            var valueDecl = type.symbol.valueDeclaration;
+            if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
+                var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
+                if (augTag) {
+                    baseType = getTypeFromTypeNode(augTag.typeExpression.type);
+                }
+            }
             if (baseType === unknownType) {
                 return;
             }
@@ -23793,7 +23977,7 @@ var ts;
                 return;
             }
             if (type === baseType || hasBaseType(baseType, type)) {
-                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
+                error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                 return;
             }
             if (type.resolvedBaseTypes === emptyArray) {
@@ -23895,7 +24079,7 @@ var ts;
                 if (!pushTypeResolution(symbol, 2)) {
                     return unknownType;
                 }
-                var declaration = ts.getDeclarationOfKind(symbol, 284);
+                var declaration = ts.getDeclarationOfKind(symbol, 285);
                 var type = void 0;
                 if (declaration) {
                     if (declaration.jsDocTypeLiteral) {
@@ -24382,6 +24566,7 @@ var ts;
             var members = ts.createMap();
             var stringIndexInfo;
             var numberIndexInfo;
+            setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
             var typeParameter = getTypeParameterFromMappedType(type);
             var constraintType = getConstraintTypeFromMappedType(type);
             var templateType = getTemplateTypeFromMappedType(type);
@@ -24426,6 +24611,9 @@ var ts;
                     instantiateType(getTypeFromTypeNode(type.declaration.type), type.mapper || identityMapper) :
                     unknownType);
         }
+        function getErasedTemplateTypeFromMappedType(type) {
+            return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
+        }
         function isGenericMappedType(type) {
             if (getObjectFlags(type) & 32) {
                 var constraintType = getConstraintTypeFromMappedType(type);
@@ -24513,14 +24701,18 @@ var ts;
             }
             return type.resolvedApparentType;
         }
+        function getApparentTypeOfIndexedAccess(type) {
+            return getIndexTypeOfType(getApparentType(type.objectType), 0) || type;
+        }
         function getApparentType(type) {
-            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) : type;
-            return t.flags & 34 ? globalStringType :
+            var t = type.flags & 16384 ? getApparentTypeOfTypeParameter(type) :
+                type.flags & 524288 ? getApparentTypeOfIndexedAccess(type) :
+                    type;
+            return t.flags & 262178 ? globalStringType :
                 t.flags & 340 ? globalNumberType :
                     t.flags & 136 ? globalBooleanType :
                         t.flags & 512 ? getGlobalESSymbolType() :
-                            t.flags & 262144 ? stringOrNumberType :
-                                t;
+                            t;
         }
         function createUnionOrIntersectionProperty(containingType, name) {
             var types = containingType.types;
@@ -24693,13 +24885,16 @@ var ts;
                 if (node.type && node.type.kind === 273) {
                     return true;
                 }
-                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
-                if (paramTag) {
-                    if (paramTag.isBracketed) {
-                        return true;
-                    }
-                    if (paramTag.typeExpression) {
-                        return paramTag.typeExpression.type.kind === 273;
+                var paramTags = ts.getJSDocParameterTags(node);
+                if (paramTags) {
+                    for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
+                        var paramTag = paramTags_1[_i];
+                        if (paramTag.isBracketed) {
+                            return true;
+                        }
+                        if (paramTag.typeExpression) {
+                            return paramTag.typeExpression.type.kind === 273;
+                        }
                     }
                 }
             }
@@ -25534,10 +25729,14 @@ var ts;
         }
         function getIndexType(type) {
             return type.flags & 16384 ? getIndexTypeForTypeParameter(type) :
-                type.flags & 1 || getIndexInfoOfType(type, 0) ? stringOrNumberType :
-                    getIndexInfoOfType(type, 1) ? getUnionType([numberType, getLiteralTypeFromPropertyNames(type)]) :
+                getObjectFlags(type) & 32 ? getConstraintTypeFromMappedType(type) :
+                    type.flags & 1 || getIndexInfoOfType(type, 0) ? stringType :
                         getLiteralTypeFromPropertyNames(type);
         }
+        function getIndexTypeOrString(type) {
+            var indexType = getIndexType(type);
+            return indexType !== neverType ? indexType : stringType;
+        }
         function getTypeFromTypeOperatorNode(node) {
             var links = getNodeLinks(node);
             if (!links.resolvedType) {
@@ -25551,10 +25750,6 @@ var ts;
             type.indexType = indexType;
             return type;
         }
-        function getIndexedAccessTypeForTypeParameter(objectType, indexType) {
-            var indexedAccessTypes = indexType.resolvedIndexedAccessTypes || (indexType.resolvedIndexedAccessTypes = []);
-            return indexedAccessTypes[objectType.id] || (indexedAccessTypes[objectType.id] = createIndexedAccessType(objectType, indexType));
-        }
         function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
             var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
             var propName = indexType.flags & (32 | 64 | 256) ?
@@ -25577,7 +25772,7 @@ var ts;
                     return getTypeOfSymbol(prop);
                 }
             }
-            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 34 | 340 | 512)) {
+            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 | 340 | 512)) {
                 if (isTypeAny(objectType)) {
                     return anyType;
                 }
@@ -25617,20 +25812,38 @@ var ts;
             }
             return unknownType;
         }
+        function getIndexedAccessForMappedType(type, indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 178 ? accessNode : undefined;
+            if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
+                error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
+                return unknownType;
+            }
+            var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
+            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
+            return addOptionality(instantiateType(getTemplateTypeFromMappedType(type), templateMapper), !!type.declaration.questionToken);
+        }
         function getIndexedAccessType(objectType, indexType, accessNode) {
-            if (indexType.flags & 16384) {
-                if (accessNode && !isTypeAssignableTo(getConstraintOfTypeParameter(indexType) || emptyObjectType, getIndexType(objectType))) {
-                    error(accessNode, ts.Diagnostics.Type_0_is_not_constrained_to_keyof_1, typeToString(indexType), typeToString(objectType));
-                    return unknownType;
+            if (indexType.flags & 16384 ||
+                objectType.flags & 16384 && indexType.flags & 262144 ||
+                isGenericMappedType(objectType)) {
+                if (accessNode) {
+                    if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
+                        error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+                        return unknownType;
+                    }
+                }
+                if (isGenericMappedType(objectType)) {
+                    return getIndexedAccessForMappedType(objectType, indexType, accessNode);
                 }
-                return getIndexedAccessTypeForTypeParameter(objectType, indexType);
+                var id = objectType.id + "," + indexType.id;
+                return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
             }
-            var apparentType = getApparentType(objectType);
+            var apparentObjectType = getApparentType(objectType);
             if (indexType.flags & 65536 && !(indexType.flags & 8190)) {
                 var propTypes = [];
                 for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                     var t = _a[_i];
-                    var propType = getPropertyTypeForIndexType(apparentType, t, accessNode, false);
+                    var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, false);
                     if (propType === unknownType) {
                         return unknownType;
                     }
@@ -25638,7 +25851,7 @@ var ts;
                 }
                 return getUnionType(propTypes);
             }
-            return getPropertyTypeForIndexType(apparentType, indexType, accessNode, true);
+            return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, true);
         }
         function getTypeFromIndexedAccessTypeNode(node) {
             var links = getNodeLinks(node);
@@ -25655,6 +25868,7 @@ var ts;
                 type.aliasSymbol = getAliasSymbolForTypeNode(node);
                 type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                 links.resolvedType = type;
+                getConstraintTypeFromMappedType(type);
             }
             return links.resolvedType;
         }
@@ -25823,18 +26037,18 @@ var ts;
                     return nullType;
                 case 129:
                     return neverType;
-                case 288:
-                    return nullType;
                 case 289:
-                    return undefinedType;
+                    return nullType;
                 case 290:
+                    return undefinedType;
+                case 291:
                     return neverType;
                 case 167:
                 case 98:
                     return getTypeFromThisTypeNode(node);
                 case 171:
                     return getTypeFromLiteralTypeNode(node);
-                case 287:
+                case 288:
                     return getTypeFromLiteralTypeNode(node.literal);
                 case 157:
                 case 272:
@@ -25867,7 +26081,7 @@ var ts;
                 case 158:
                 case 159:
                 case 161:
-                case 286:
+                case 287:
                 case 274:
                     return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                 case 168:
@@ -26028,6 +26242,28 @@ var ts;
             return result;
         }
         function instantiateMappedType(type, mapper) {
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 262144) {
+                var typeParameter_1 = constraintType.type;
+                var mappedTypeParameter = mapper(typeParameter_1);
+                if (typeParameter_1 !== mappedTypeParameter) {
+                    return mapType(mappedTypeParameter, function (t) {
+                        if (isMappableType(t)) {
+                            var replacementMapper = createUnaryTypeMapper(typeParameter_1, t);
+                            var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
+                            combinedMapper.mappedTypes = mapper.mappedTypes;
+                            return instantiateMappedObjectType(type, combinedMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateMappedObjectType(type, mapper);
+        }
+        function isMappableType(type) {
+            return type.flags & (16384 | 32768 | 131072 | 524288);
+        }
+        function instantiateMappedObjectType(type, mapper) {
             var result = createObjectType(32 | 64, type.symbol);
             result.declaration = type.declaration;
             result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
@@ -26386,7 +26622,7 @@ var ts;
                 return false;
             if (target.flags & 1 || source.flags & 8192)
                 return true;
-            if (source.flags & 34 && target.flags & 2)
+            if (source.flags & 262178 && target.flags & 2)
                 return true;
             if (source.flags & 340 && target.flags & 4)
                 return true;
@@ -26510,11 +26746,6 @@ var ts;
                 }
                 if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                     return -1;
-                if (source.flags & 262144) {
-                    if (maybeTypeOfKind(target, 2) && maybeTypeOfKind(target, 4)) {
-                        return -1;
-                    }
-                }
                 if (getObjectFlags(source) & 128 && source.flags & 1048576) {
                     if (hasExcessProperties(source, target, reportErrors)) {
                         if (reportErrors) {
@@ -26554,10 +26785,21 @@ var ts;
                     }
                 }
                 if (target.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(target);
-                    if (constraint && constraint.flags & 262144) {
-                        if (result = isRelatedTo(source, constraint, reportErrors)) {
-                            return result;
+                    if (getObjectFlags(source) & 32 && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
+                        if (!source.declaration.questionToken) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(target);
+                        if (constraint && constraint.flags & 262144) {
+                            if (result = isRelatedTo(source, constraint, reportErrors)) {
+                                return result;
+                            }
                         }
                     }
                 }
@@ -26574,16 +26816,32 @@ var ts;
                         }
                     }
                 }
+                else if (target.flags & 524288) {
+                    if (source.flags & 524288 && source.indexType === target.indexType) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                }
                 if (source.flags & 16384) {
-                    var constraint = getConstraintOfTypeParameter(source);
-                    if (!constraint || constraint.flags & 1) {
-                        constraint = emptyObjectType;
-                    }
-                    constraint = getTypeWithThisArgument(constraint, source);
-                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
-                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
-                        errorInfo = saveErrorInfo;
-                        return result;
+                    if (getObjectFlags(target) & 32 && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
+                        var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
+                        var templateType = getTemplateTypeFromMappedType(target);
+                        if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(source);
+                        if (!constraint || constraint.flags & 1) {
+                            constraint = emptyObjectType;
+                        }
+                        constraint = getTypeWithThisArgument(constraint, source);
+                        var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+                        if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
+                        }
                     }
                 }
                 else {
@@ -26592,22 +26850,12 @@ var ts;
                             return result;
                         }
                     }
-                    if (isGenericMappedType(target)) {
-                        if (isGenericMappedType(source)) {
-                            if ((result = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) &&
-                                (result = isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors))) {
-                                return result;
-                            }
-                        }
-                    }
-                    else {
-                        var apparentSource = getApparentType(source);
-                        if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
-                            var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
-                            if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
-                                errorInfo = saveErrorInfo;
-                                return result;
-                            }
+                    var apparentSource = getApparentType(source);
+                    if (apparentSource.flags & (32768 | 131072) && target.flags & 32768) {
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190);
+                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
                         }
                     }
                 }
@@ -26814,6 +27062,9 @@ var ts;
                 if (expandingFlags === 3) {
                     result = 1;
                 }
+                else if (isGenericMappedType(source) || isGenericMappedType(target)) {
+                    result = mappedTypeRelatedTo(source, target, reportErrors);
+                }
                 else {
                     result = propertiesRelatedTo(source, target, reportErrors);
                     if (result) {
@@ -26841,6 +27092,33 @@ var ts;
                 }
                 return result;
             }
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                if (isGenericMappedType(target)) {
+                    if (isGenericMappedType(source)) {
+                        var result_2;
+                        if (relation === identityRelation) {
+                            var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
+                            var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
+                            if (readonlyMatches && optionalMatches) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                        else {
+                            if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (relation !== identityRelation && isEmptyObjectType(resolveStructuredTypeMembers(target))) {
+                    return -1;
+                }
+                return 0;
+            }
             function propertiesRelatedTo(source, target, reportErrors) {
                 if (relation === identityRelation) {
                     return propertiesIdenticalTo(source, target);
@@ -27316,7 +27594,7 @@ var ts;
                 return type;
             }
             var types = [type];
-            if (flags & 34)
+            if (flags & 262178)
                 types.push(emptyStringType);
             if (flags & 340)
                 types.push(zeroType);
@@ -27651,19 +27929,6 @@ var ts;
                     }
                 }
                 else {
-                    if (getObjectFlags(target) & 32) {
-                        var constraintType = getConstraintTypeFromMappedType(target);
-                        if (getObjectFlags(source) & 32) {
-                            inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
-                            inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                        if (constraintType.flags & 16384) {
-                            inferFromTypes(getIndexType(source), constraintType);
-                            inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                    }
                     source = getApparentType(source);
                     if (source.flags & 32768) {
                         if (isInProcess(source, target)) {
@@ -27684,14 +27949,30 @@ var ts;
                         sourceStack[depth] = source;
                         targetStack[depth] = target;
                         depth++;
-                        inferFromProperties(source, target);
-                        inferFromSignatures(source, target, 0);
-                        inferFromSignatures(source, target, 1);
-                        inferFromIndexTypes(source, target);
+                        inferFromObjectTypes(source, target);
                         depth--;
                     }
                 }
             }
+            function inferFromObjectTypes(source, target) {
+                if (getObjectFlags(target) & 32) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (getObjectFlags(source) & 32) {
+                        inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
+                        inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                    if (constraintType.flags & 16384) {
+                        inferFromTypes(getIndexType(source), constraintType);
+                        inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                }
+                inferFromProperties(source, target);
+                inferFromSignatures(source, target, 0);
+                inferFromSignatures(source, target, 1);
+                inferFromIndexTypes(source, target);
+            }
             function inferFromProperties(source, target) {
                 var properties = getPropertiesOfObjectType(target);
                 for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
@@ -28026,7 +28307,7 @@ var ts;
         }
         function getTypeWithDefault(type, defaultExpression) {
             if (defaultExpression) {
-                var defaultType = checkExpression(defaultExpression);
+                var defaultType = getTypeOfExpression(defaultExpression);
                 return getUnionType([getTypeWithFacts(type, 131072), defaultType]);
             }
             return type;
@@ -28049,7 +28330,7 @@ var ts;
         function getAssignedTypeOfBinaryExpression(node) {
             return node.parent.kind === 175 || node.parent.kind === 257 ?
                 getTypeWithDefault(getAssignedType(node), node.right) :
-                checkExpression(node.right);
+                getTypeOfExpression(node.right);
         }
         function getAssignedTypeOfArrayLiteralElement(node, element) {
             return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
@@ -28097,7 +28378,7 @@ var ts;
         }
         function getTypeOfInitializer(node) {
             var links = getNodeLinks(node);
-            return links.resolvedType || checkExpression(node);
+            return links.resolvedType || getTypeOfExpression(node);
         }
         function getInitialTypeOfVariableDeclaration(node) {
             if (node.initializer) {
@@ -28150,7 +28431,7 @@ var ts;
         }
         function getTypeOfSwitchClause(clause) {
             if (clause.kind === 253) {
-                var caseType = getRegularTypeOfLiteralType(checkExpression(clause.expression));
+                var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
                 return isUnitType(caseType) ? caseType : undefined;
             }
             return neverType;
@@ -28230,7 +28511,7 @@ var ts;
             return evolvingArrayTypes[elementType.id] || (evolvingArrayTypes[elementType.id] = createEvolvingArrayType(elementType));
         }
         function addEvolvingArrayElementType(evolvingArrayType, node) {
-            var elementType = getBaseTypeOfLiteralType(checkExpression(node));
+            var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
             return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
         }
         function createFinalArrayType(elementType) {
@@ -28278,7 +28559,7 @@ var ts;
                 parent.parent.operatorToken.kind === 57 &&
                 parent.parent.left === parent &&
                 !ts.isAssignmentTarget(parent.parent) &&
-                isTypeAnyOrAllConstituentTypesHaveKind(checkExpression(parent.argumentExpression), 340 | 2048);
+                isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 | 2048);
             return isLengthPushOrUnshift || isElementAssignment;
         }
         function maybeTypePredicateCall(node) {
@@ -28416,7 +28697,7 @@ var ts;
                             }
                         }
                         else {
-                            var indexType = checkExpression(node.left.argumentExpression);
+                            var indexType = getTypeOfExpression(node.left.argumentExpression);
                             if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 | 2048)) {
                                 evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                             }
@@ -28597,7 +28878,7 @@ var ts;
                 if (operator === 32 || operator === 34) {
                     assumeTrue = !assumeTrue;
                 }
-                var valueType = checkExpression(value);
+                var valueType = getTypeOfExpression(value);
                 if (valueType.flags & 6144) {
                     if (!strictNullChecks) {
                         return type;
@@ -28669,7 +28950,7 @@ var ts;
                     }
                     return type;
                 }
-                var rightType = checkExpression(expr.right);
+                var rightType = getTypeOfExpression(expr.right);
                 if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                     return type;
                 }
@@ -28697,16 +28978,16 @@ var ts;
                     }
                 }
                 if (targetType) {
-                    return getNarrowedType(type, targetType, assumeTrue);
+                    return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
                 }
                 return type;
             }
-            function getNarrowedType(type, candidate, assumeTrue) {
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
                 if (!assumeTrue) {
-                    return filterType(type, function (t) { return !isTypeInstanceOf(t, candidate); });
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
                 }
                 if (type.flags & 65536) {
-                    var assignableType = filterType(type, function (t) { return isTypeInstanceOf(t, candidate); });
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                     if (!(assignableType.flags & 8192)) {
                         return assignableType;
                     }
@@ -28733,7 +29014,7 @@ var ts;
                     var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                     if (predicateArgument) {
                         if (isMatchingReference(reference, predicateArgument)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, predicateArgument)) {
                             return declaredType;
@@ -28746,7 +29027,7 @@ var ts;
                         var accessExpression = invokedExpression;
                         var possibleReference = ts.skipParentheses(accessExpression.expression);
                         if (isMatchingReference(reference, possibleReference)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, possibleReference)) {
                             return declaredType;
@@ -28782,7 +29063,7 @@ var ts;
                     location = location.parent;
                 }
                 if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
-                    var type = checkExpression(location);
+                    var type = getTypeOfExpression(location);
                     if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                         return type;
                     }
@@ -29117,9 +29398,9 @@ var ts;
             return anyType;
         }
         function getTypeForThisExpressionFromJSDoc(node) {
-            var typeTag = ts.getJSDocTypeTag(node);
-            if (typeTag && typeTag.typeExpression && typeTag.typeExpression.type && typeTag.typeExpression.type.kind === 274) {
-                var jsDocFunctionType = typeTag.typeExpression.type;
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 274) {
+                var jsDocFunctionType = jsdocType;
                 if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277) {
                     return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
                 }
@@ -29304,11 +29585,11 @@ var ts;
                 }
                 if (ts.isBindingPattern(declaration.parent)) {
                     var parentDeclaration = declaration.parent.parent;
-                    var name_22 = declaration.propertyName || declaration.name;
+                    var name_21 = declaration.propertyName || declaration.name;
                     if (ts.isVariableLike(parentDeclaration) &&
                         parentDeclaration.type &&
-                        !ts.isBindingPattern(name_22)) {
-                        var text = ts.getTextOfPropertyName(name_22);
+                        !ts.isBindingPattern(name_21)) {
+                        var text = ts.getTextOfPropertyName(name_21);
                         if (text) {
                             return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                         }
@@ -29387,13 +29668,13 @@ var ts;
                     return undefined;
                 }
                 if (node === binaryExpression.right) {
-                    return checkExpression(binaryExpression.left);
+                    return getTypeOfExpression(binaryExpression.left);
                 }
             }
             else if (operator === 53) {
                 var type = getContextualType(binaryExpression);
                 if (!type && node === binaryExpression.right) {
-                    type = checkExpression(binaryExpression.left);
+                    type = getTypeOfExpression(binaryExpression.left);
                 }
                 return type;
             }
@@ -29699,7 +29980,7 @@ var ts;
             var links = getNodeLinks(node.expression);
             if (!links.resolvedType) {
                 links.resolvedType = checkExpression(node.expression);
-                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 34 | 512)) {
+                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 | 262178 | 512)) {
                     error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
                 }
                 else {
@@ -29708,10 +29989,10 @@ var ts;
             }
             return links.resolvedType;
         }
-        function getObjectLiteralIndexInfo(node, properties, kind) {
+        function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
             var propTypes = [];
             for (var i = 0; i < properties.length; i++) {
-                if (kind === 0 || isNumericName(node.properties[i].name)) {
+                if (kind === 0 || isNumericName(propertyNodes[i + offset].name)) {
                     propTypes.push(getTypeOfSymbol(properties[i]));
                 }
             }
@@ -29732,8 +30013,9 @@ var ts;
             var patternWithComputedProperties = false;
             var hasComputedStringProperty = false;
             var hasComputedNumberProperty = false;
-            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
-                var memberDecl = _a[_i];
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
                 var member = memberDecl.symbol;
                 if (memberDecl.kind === 257 ||
                     memberDecl.kind === 258 ||
@@ -29794,6 +30076,7 @@ var ts;
                         return unknownType;
                     }
                     spread = getSpreadType(spread, type, false);
+                    offset = i + 1;
                     continue;
                 }
                 else {
@@ -29814,8 +30097,8 @@ var ts;
                 propertiesArray.push(member);
             }
             if (contextualTypeHasPattern) {
-                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
-                    var prop = _c[_b];
+                for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
                     if (!propertiesTable[prop.name]) {
                         if (!(prop.flags & 536870912)) {
                             error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
@@ -29835,8 +30118,8 @@ var ts;
             }
             return createObjectLiteralType();
             function createObjectLiteralType() {
-                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 0) : undefined;
-                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 1) : undefined;
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1) : undefined;
                 var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
                 var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576;
                 result.flags |= 4194304 | freshObjectLiteralFlag | (typeFlags & 14680064);
@@ -30378,7 +30661,7 @@ var ts;
                         if (node.kind === 212 &&
                             child === node.statement &&
                             getForInVariableSymbol(node) === symbol &&
-                            hasNumericPropertyNames(checkExpression(node.expression))) {
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                             return true;
                         }
                         child = node;
@@ -30471,19 +30754,19 @@ var ts;
             for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
                 var signature = signatures_2[_i];
                 var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
-                var parent_9 = signature.declaration && signature.declaration.parent;
+                var parent_8 = signature.declaration && signature.declaration.parent;
                 if (!lastSymbol || symbol === lastSymbol) {
-                    if (lastParent && parent_9 === lastParent) {
+                    if (lastParent && parent_8 === lastParent) {
                         index++;
                     }
                     else {
-                        lastParent = parent_9;
+                        lastParent = parent_8;
                         index = cutoffIndex;
                     }
                 }
                 else {
                     index = cutoffIndex = result.length;
-                    lastParent = parent_9;
+                    lastParent = parent_8;
                 }
                 lastSymbol = symbol;
                 if (signature.hasLiteralTypes) {
@@ -31451,7 +31734,7 @@ var ts;
             if (!node.possiblyExhaustive) {
                 return false;
             }
-            var type = checkExpression(node.expression);
+            var type = getTypeOfExpression(node.expression);
             if (!isLiteralType(type)) {
                 return false;
             }
@@ -31787,10 +32070,10 @@ var ts;
             if (leftType === silentNeverType || rightType === silentNeverType) {
                 return silentNeverType;
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 | 340 | 512)) {
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 | 512))) {
                 error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             return booleanType;
@@ -31799,20 +32082,20 @@ var ts;
             var properties = node.properties;
             for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                 var p = properties_5[_i];
-                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p);
+                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
             }
             return sourceType;
         }
-        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property) {
+        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
             if (property.kind === 257 || property.kind === 258) {
-                var name_23 = property.name;
-                if (name_23.kind === 142) {
-                    checkComputedPropertyName(name_23);
+                var name_22 = property.name;
+                if (name_22.kind === 142) {
+                    checkComputedPropertyName(name_22);
                 }
-                if (isComputedNonLiteralName(name_23)) {
+                if (isComputedNonLiteralName(name_22)) {
                     return undefined;
                 }
-                var text = ts.getTextOfPropertyName(name_23);
+                var text = ts.getTextOfPropertyName(name_22);
                 var type = isTypeAny(objectLiteralType)
                     ? objectLiteralType
                     : getTypeOfPropertyOfType(objectLiteralType, text) ||
@@ -31827,13 +32110,18 @@ var ts;
                     }
                 }
                 else {
-                    error(name_23, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_23));
+                    error(name_22, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_22));
                 }
             }
             else if (property.kind === 259) {
-                if (property.expression.kind !== 70) {
-                    error(property.expression, ts.Diagnostics.An_object_rest_element_must_be_an_identifier);
+                var nonRestNames = [];
+                if (allProperties) {
+                    for (var i = 0; i < allProperties.length - 1; i++) {
+                        nonRestNames.push(allProperties[i].name);
+                    }
                 }
+                var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                return checkDestructuringAssignment(property.expression, type);
             }
             else {
                 error(property, ts.Diagnostics.Property_assignment_expected);
@@ -31918,7 +32206,10 @@ var ts;
         }
         function checkReferenceAssignment(target, sourceType, contextualMapper) {
             var targetType = checkExpression(target, contextualMapper);
-            if (checkReferenceExpression(target, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
+            var error = target.parent.kind === 259 ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            if (checkReferenceExpression(target, error)) {
                 checkTypeAssignableTo(sourceType, targetType, target, undefined);
             }
             return sourceType;
@@ -32055,7 +32346,7 @@ var ts;
                         resultType = numberType;
                     }
                     else {
-                        if (isTypeOfKind(leftType, 34) || isTypeOfKind(rightType, 34)) {
+                        if (isTypeOfKind(leftType, 262178) || isTypeOfKind(rightType, 262178)) {
                             resultType = stringType;
                         }
                         else if (isTypeAny(leftType) || isTypeAny(rightType)) {
@@ -32078,6 +32369,8 @@ var ts;
                 case 29:
                 case 30:
                     if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(leftType);
+                        rightType = getBaseTypeOfLiteralType(rightType);
                         if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                             reportOperatorError();
                         }
@@ -32251,7 +32544,7 @@ var ts;
         function checkDeclarationInitializer(declaration) {
             var type = checkExpressionCached(declaration.initializer);
             return ts.getCombinedNodeFlags(declaration) & 2 ||
-                ts.getCombinedModifierFlags(declaration) & 64 ||
+                ts.getCombinedModifierFlags(declaration) & 64 && !ts.isParameterPropertyDeclaration(declaration) ||
                 isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
         }
         function isLiteralContextualType(contextualType) {
@@ -32263,7 +32556,7 @@ var ts;
                     }
                     contextualType = apparentType;
                 }
-                return maybeTypeOfKind(contextualType, 480);
+                return maybeTypeOfKind(contextualType, (480 | 262144));
             }
             return false;
         }
@@ -32300,6 +32593,16 @@ var ts;
             }
             return type;
         }
+        function getTypeOfExpression(node) {
+            if (node.kind === 179 && node.expression.kind !== 96) {
+                var funcType = checkNonNullExpression(node.expression);
+                var signature = getSingleCallSignature(funcType);
+                if (signature && !signature.typeParameters) {
+                    return getReturnTypeOfSignature(signature);
+                }
+            }
+            return checkExpression(node);
+        }
         function checkExpression(node, contextualMapper) {
             var type;
             if (node.kind === 141) {
@@ -32480,9 +32783,9 @@ var ts;
                 else if (parameterName) {
                     var hasReportedError = false;
                     for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
-                        var name_24 = _a[_i].name;
-                        if (ts.isBindingPattern(name_24) &&
-                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_24, parameterName, typePredicate.parameterName)) {
+                        var name_23 = _a[_i].name;
+                        if (ts.isBindingPattern(name_23) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_23, parameterName, typePredicate.parameterName)) {
                             hasReportedError = true;
                             break;
                         }
@@ -32502,9 +32805,9 @@ var ts;
                 case 158:
                 case 149:
                 case 148:
-                    var parent_10 = node.parent;
-                    if (node === parent_10.type) {
-                        return parent_10;
+                    var parent_9 = node.parent;
+                    if (node === parent_9.type) {
+                        return parent_9;
                     }
             }
         }
@@ -32514,15 +32817,15 @@ var ts;
                 if (ts.isOmittedExpression(element)) {
                     continue;
                 }
-                var name_25 = element.name;
-                if (name_25.kind === 70 &&
-                    name_25.text === predicateVariableName) {
+                var name_24 = element.name;
+                if (name_24.kind === 70 &&
+                    name_24.text === predicateVariableName) {
                     error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                     return true;
                 }
-                else if (name_25.kind === 173 ||
-                    name_25.kind === 172) {
-                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_25, predicateVariableNode, predicateVariableName)) {
+                else if (name_24.kind === 173 ||
+                    name_24.kind === 172) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_24, predicateVariableNode, predicateVariableName)) {
                         return true;
                     }
                 }
@@ -32753,8 +33056,8 @@ var ts;
                     if (superCallShouldBeFirst) {
                         var statements = node.body.statements;
                         var superCallStatement = void 0;
-                        for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
-                            var statement = statements_2[_i];
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
                             if (statement.kind === 207 && ts.isSuperCall(statement.expression)) {
                                 superCallStatement = statement;
                                 break;
@@ -32897,7 +33200,7 @@ var ts;
             var type = getTypeFromMappedTypeNode(node);
             var constraintType = getConstraintTypeFromMappedType(type);
             var keyType = constraintType.flags & 16384 ? getApparentTypeOfTypeParameter(constraintType) : constraintType;
-            checkTypeAssignableTo(keyType, stringOrNumberType, node.typeParameter.constraint);
+            checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
         }
         function isPrivateWithinAmbient(node) {
             return (ts.getModifierFlags(node) & 8) && ts.isInAmbientContext(node);
@@ -33141,10 +33444,10 @@ var ts;
                     case 229:
                         return 2097152 | 1048576;
                     case 234:
-                        var result_2 = 0;
+                        var result_3 = 0;
                         var target = resolveAlias(getSymbolOfNode(d));
-                        ts.forEach(target.declarations, function (d) { result_2 |= getDeclarationSpaces(d); });
-                        return result_2;
+                        ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
+                        return result_3;
                     default:
                         return 1048576;
                 }
@@ -33683,8 +33986,8 @@ var ts;
                                 container.kind === 230 ||
                                 container.kind === 261);
                         if (!namesShareScope) {
-                            var name_26 = symbolToString(localDeclarationSymbol);
-                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_26, name_26);
+                            var name_25 = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_25, name_25);
                         }
                     }
                 }
@@ -33755,13 +34058,13 @@ var ts;
                 if (node.propertyName && node.propertyName.kind === 142) {
                     checkComputedPropertyName(node.propertyName);
                 }
-                var parent_11 = node.parent.parent;
-                var parentType = getTypeForBindingElementParent(parent_11);
-                var name_27 = node.propertyName || node.name;
-                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_27));
+                var parent_10 = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent_10);
+                var name_26 = node.propertyName || node.name;
+                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_26));
                 markPropertyAsReferenced(property);
-                if (parent_11.initializer && property && getParentOfSymbol(property)) {
-                    checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
+                if (parent_10.initializer && property && getParentOfSymbol(property)) {
+                    checkClassPropertyAccess(parent_10, parent_10.initializer, parentType, property);
                 }
             }
             if (ts.isBindingPattern(node.name)) {
@@ -33922,6 +34225,7 @@ var ts;
         }
         function checkForInStatement(node) {
             checkGrammarForInOrForOfStatement(node);
+            var rightType = checkNonNullExpression(node.expression);
             if (node.initializer.kind === 224) {
                 var variable = node.initializer.declarations[0];
                 if (variable && ts.isBindingPattern(variable.name)) {
@@ -33935,15 +34239,14 @@ var ts;
                 if (varExpr.kind === 175 || varExpr.kind === 176) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
                 }
-                else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34)) {
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
                 }
                 else {
                     checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
                 }
             }
-            var rightType = checkNonNullExpression(node.expression);
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 | 16384 | 524288)) {
                 error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             checkSourceElement(node.statement);
@@ -34068,12 +34371,12 @@ var ts;
             var arrayType = arrayOrStringType;
             if (arrayOrStringType.flags & 65536) {
                 var arrayTypes = arrayOrStringType.types;
-                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 34); });
+                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178); });
                 if (filteredTypes !== arrayTypes) {
                     arrayType = getUnionType(filteredTypes, true);
                 }
             }
-            else if (arrayOrStringType.flags & 34) {
+            else if (arrayOrStringType.flags & 262178) {
                 arrayType = neverType;
             }
             var hasStringConstituent = arrayOrStringType !== arrayType;
@@ -34098,7 +34401,7 @@ var ts;
             }
             var arrayElementType = getIndexTypeOfType(arrayType, 1) || unknownType;
             if (hasStringConstituent) {
-                if (arrayElementType.flags & 34) {
+                if (arrayElementType.flags & 262178) {
                     return stringType;
                 }
                 return getUnionType([arrayElementType, stringType], true);
@@ -34782,7 +35085,7 @@ var ts;
                                         return undefined;
                                     }
                                 }
-                                enumType_1 = checkExpression(expression);
+                                enumType_1 = getTypeOfExpression(expression);
                                 if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384))) {
                                     return undefined;
                                 }
@@ -34977,9 +35280,9 @@ var ts;
                     break;
                 case 174:
                 case 223:
-                    var name_28 = node.name;
-                    if (ts.isBindingPattern(name_28)) {
-                        for (var _b = 0, _c = name_28.elements; _b < _c.length; _b++) {
+                    var name_27 = node.name;
+                    if (ts.isBindingPattern(name_27)) {
+                        for (var _b = 0, _c = name_27.elements; _b < _c.length; _b++) {
                             var el = _c[_b];
                             checkModuleAugmentationElement(el, isGlobalAugmentation);
                         }
@@ -35717,7 +36020,7 @@ var ts;
                         }
                     }
                 case 96:
-                    var type = ts.isPartOfExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+                    var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                     return type.symbol;
                 case 167:
                     return getTypeFromTypeNode(node).symbol;
@@ -35739,7 +36042,7 @@ var ts;
                     }
                 case 8:
                     if (node.parent.kind === 178 && node.parent.argumentExpression === node) {
-                        var objectType = checkExpression(node.parent.expression);
+                        var objectType = getTypeOfExpression(node.parent.expression);
                         if (objectType === unknownType)
                             return undefined;
                         var apparentType = getApparentType(objectType);
@@ -35770,7 +36073,7 @@ var ts;
                 return getTypeFromTypeNode(node);
             }
             if (ts.isPartOfExpression(node)) {
-                return getTypeOfExpression(node);
+                return getRegularTypeOfExpression(node);
             }
             if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
                 return getBaseTypes(getDeclaredTypeOfSymbol(getSymbolOfNode(node.parent.parent)))[0];
@@ -35808,7 +36111,7 @@ var ts;
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 192) {
-                var iteratedType = checkExpression(expr.parent.right);
+                var iteratedType = getTypeOfExpression(expr.parent.right);
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             if (expr.parent.kind === 257) {
@@ -35824,11 +36127,11 @@ var ts;
             var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
             return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
         }
-        function getTypeOfExpression(expr) {
+        function getRegularTypeOfExpression(expr) {
             if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
                 expr = expr.parent;
             }
-            return getRegularTypeOfLiteralType(checkExpression(expr));
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
         }
         function getParentTypeOfClassElement(node) {
             var classSymbol = getSymbolOfNode(node.parent);
@@ -35851,9 +36154,9 @@ var ts;
         function getRootSymbols(symbol) {
             if (symbol.flags & 268435456) {
                 var symbols_3 = [];
-                var name_29 = symbol.name;
+                var name_28 = symbol.name;
                 ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
-                    var symbol = getPropertyOfType(t, name_29);
+                    var symbol = getPropertyOfType(t, name_28);
                     if (symbol) {
                         symbols_3.push(symbol);
                     }
@@ -35906,7 +36209,7 @@ var ts;
         }
         function isNameOfModuleOrEnumDeclaration(node) {
             var parent = node.parent;
-            return ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
+            return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
         }
         function getReferencedExportContainer(node, prefixLocals) {
             node = ts.getParseTreeNode(node, ts.isIdentifier);
@@ -36114,7 +36417,7 @@ var ts;
             else if (isTypeOfKind(type, 340)) {
                 return ts.TypeReferenceSerializationKind.NumberLikeType;
             }
-            else if (isTypeOfKind(type, 34)) {
+            else if (isTypeOfKind(type, 262178)) {
                 return ts.TypeReferenceSerializationKind.StringLikeType;
             }
             else if (isTupleType(type)) {
@@ -36145,7 +36448,7 @@ var ts;
             getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
         }
         function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
-            var type = getWidenedType(getTypeOfExpression(expr));
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
         }
         function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
@@ -36164,9 +36467,9 @@ var ts;
             }
             var location = reference;
             if (startInDeclarationContainer) {
-                var parent_12 = reference.parent;
-                if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
-                    location = getDeclarationContainer(parent_12);
+                var parent_11 = reference.parent;
+                if (ts.isDeclaration(parent_11) && reference === parent_11.name) {
+                    location = getDeclarationContainer(parent_11);
                 }
             }
             return resolveName(location, reference.text, 107455 | 1048576 | 8388608, undefined, undefined);
@@ -36279,9 +36582,9 @@ var ts;
                 }
                 var current = symbol;
                 while (true) {
-                    var parent_13 = getParentOfSymbol(current);
-                    if (parent_13) {
-                        current = parent_13;
+                    var parent_12 = getParentOfSymbol(current);
+                    if (parent_12) {
+                        current = parent_12;
                     }
                     else {
                         break;
@@ -36958,9 +37261,9 @@ var ts;
                 if (prop.kind === 259) {
                     continue;
                 }
-                var name_30 = prop.name;
-                if (name_30.kind === 142) {
-                    checkGrammarComputedPropertyName(name_30);
+                var name_29 = prop.name;
+                if (name_29.kind === 142) {
+                    checkGrammarComputedPropertyName(name_29);
                 }
                 if (prop.kind === 258 && !inDestructuring && prop.objectAssignmentInitializer) {
                     return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
@@ -36976,8 +37279,8 @@ var ts;
                 var currentKind = void 0;
                 if (prop.kind === 257 || prop.kind === 258) {
                     checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
-                    if (name_30.kind === 8) {
-                        checkGrammarNumericLiteral(name_30);
+                    if (name_29.kind === 8) {
+                        checkGrammarNumericLiteral(name_29);
                     }
                     currentKind = Property;
                 }
@@ -36993,7 +37296,7 @@ var ts;
                 else {
                     ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
                 }
-                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_30);
+                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_29);
                 if (effectiveName === undefined) {
                     continue;
                 }
@@ -37003,18 +37306,18 @@ var ts;
                 else {
                     var existingKind = seen[effectiveName];
                     if (currentKind === Property && existingKind === Property) {
-                        grammarErrorOnNode(name_30, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_30));
+                        grammarErrorOnNode(name_29, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_29));
                     }
                     else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                         if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                             seen[effectiveName] = currentKind | existingKind;
                         }
                         else {
-                            return grammarErrorOnNode(name_30, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            return grammarErrorOnNode(name_29, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                         }
                     }
                     else {
-                        return grammarErrorOnNode(name_30, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        return grammarErrorOnNode(name_29, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                     }
                 }
             }
@@ -37027,12 +37330,12 @@ var ts;
                     continue;
                 }
                 var jsxAttr = attr;
-                var name_31 = jsxAttr.name;
-                if (!seen[name_31.text]) {
-                    seen[name_31.text] = true;
+                var name_30 = jsxAttr.name;
+                if (!seen[name_30.text]) {
+                    seen[name_30.text] = true;
                 }
                 else {
-                    return grammarErrorOnNode(name_31, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                    return grammarErrorOnNode(name_30, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
                 }
                 var initializer = jsxAttr.initializer;
                 if (initializer && initializer.kind === 252 && !initializer.expression) {
@@ -37480,10 +37783,15 @@ var ts;
     function reduceNode(node, f, initial) {
         return node ? f(initial, node) : initial;
     }
-    function reduceEachChild(node, f, initial) {
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
         if (node === undefined) {
             return initial;
         }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
         var kind = node.kind;
         if ((kind > 0 && kind <= 140)) {
             return initial;
@@ -37497,108 +37805,108 @@ var ts;
             case 206:
             case 198:
             case 222:
-            case 292:
+            case 293:
                 break;
             case 142:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 144:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 145:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 147:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 149:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 150:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 151:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 152:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 172:
             case 173:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 174:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 175:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 176:
-                result = ts.reduceLeft(node.properties, f, result);
+                result = reduceNodes(node.properties, cbNodes, result);
                 break;
             case 177:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 178:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.argumentExpression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
                 break;
             case 179:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 180:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 181:
-                result = reduceNode(node.tag, f, result);
-                result = reduceNode(node.template, f, result);
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNode(node.template, cbNode, result);
                 break;
             case 184:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 185:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 183:
             case 186:
@@ -37608,205 +37916,205 @@ var ts;
             case 195:
             case 196:
             case 201:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 190:
             case 191:
-                result = reduceNode(node.operand, f, result);
+                result = reduceNode(node.operand, cbNode, result);
                 break;
             case 192:
-                result = reduceNode(node.left, f, result);
-                result = reduceNode(node.right, f, result);
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
                 break;
             case 193:
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.whenTrue, f, result);
-                result = reduceNode(node.whenFalse, f, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
                 break;
             case 194:
-                result = reduceNode(node.head, f, result);
-                result = ts.reduceLeft(node.templateSpans, f, result);
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
                 break;
             case 197:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 199:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
                 break;
             case 202:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.literal, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
                 break;
             case 204:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 205:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.declarationList, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
                 break;
             case 207:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 208:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.thenStatement, f, result);
-                result = reduceNode(node.elseStatement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
                 break;
             case 209:
-                result = reduceNode(node.statement, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 210:
             case 217:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 211:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.incrementor, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 212:
             case 213:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 216:
             case 220:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 218:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.caseBlock, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
                 break;
             case 219:
-                result = reduceNode(node.label, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 221:
-                result = reduceNode(node.tryBlock, f, result);
-                result = reduceNode(node.catchClause, f, result);
-                result = reduceNode(node.finallyBlock, f, result);
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
                 break;
             case 223:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 224:
-                result = ts.reduceLeft(node.declarations, f, result);
+                result = reduceNodes(node.declarations, cbNodes, result);
                 break;
             case 225:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 226:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 232:
-                result = ts.reduceLeft(node.clauses, f, result);
+                result = reduceNodes(node.clauses, cbNodes, result);
                 break;
             case 235:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.importClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 236:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.namedBindings, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
                 break;
             case 237:
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 238:
             case 242:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 239:
             case 243:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 240:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 241:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.exportClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 246:
-                result = reduceNode(node.openingElement, f, result);
-                result = ts.reduceLeft(node.children, f, result);
-                result = reduceNode(node.closingElement, f, result);
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
                 break;
             case 247:
             case 248:
-                result = reduceNode(node.tagName, f, result);
-                result = ts.reduceLeft(node.attributes, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.attributes, cbNodes, result);
                 break;
             case 249:
-                result = reduceNode(node.tagName, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
                 break;
             case 250:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 251:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 252:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 253:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
             case 254:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 255:
-                result = ts.reduceLeft(node.types, f, result);
+                result = reduceNodes(node.types, cbNodes, result);
                 break;
             case 256:
-                result = reduceNode(node.variableDeclaration, f, result);
-                result = reduceNode(node.block, f, result);
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
                 break;
             case 257:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 258:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.objectAssignmentInitializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
                 break;
             case 259:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 261:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
-            case 293:
-                result = reduceNode(node.expression, f, result);
+            case 294:
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             default:
                 var edgeTraversalPath = nodeEdgeTraversalMap[kind];
@@ -37816,8 +38124,8 @@ var ts;
                         var value = node[edge.name];
                         if (value !== undefined) {
                             result = ts.isArray(value)
-                                ? ts.reduceLeft(value, f, result)
-                                : f(result, value);
+                                ? reduceNodes(value, cbNodes, result)
+                                : cbNode(result, value);
                         }
                     }
                 }
@@ -37827,8 +38135,8 @@ var ts;
     }
     ts.reduceEachChild = reduceEachChild;
     function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
-        if (node === undefined) {
-            return undefined;
+        if (node === undefined || visitor === undefined) {
+            return node;
         }
         aggregateTransformFlags(node);
         var visited = visitor(node);
@@ -37905,6 +38213,35 @@ var ts;
         return updated || nodes;
     }
     ts.visitNodes = visitNodes;
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
+            statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
+        }
+        var declarations = context.endLexicalEnvironment();
+        return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    function visitParameterList(nodes, visitor, context) {
+        context.startLexicalEnvironment();
+        var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
     function visitEachChild(node, visitor, context) {
         if (node === undefined) {
             return undefined;
@@ -37925,23 +38262,23 @@ var ts;
             case 142:
                 return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
             case 144:
-                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 147:
                 return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, true), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 149:
-                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 150:
-                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 151:
-                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 152:
-                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 172:
                 return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
             case 173:
                 return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
             case 174:
-                return ts.updateBindingElement(node, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
+                return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, true));
             case 175:
                 return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
             case 176:
@@ -37959,9 +38296,9 @@ var ts;
             case 183:
                 return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
             case 184:
-                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 185:
-                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isConciseBody, true), context.endLexicalEnvironment()));
+                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 186:
                 return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
             case 187:
@@ -38029,7 +38366,7 @@ var ts;
             case 224:
                 return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
             case 225:
-                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, true), context.endLexicalEnvironment()));
+                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, true), visitFunctionBody(node.body, visitor, context));
             case 226:
                 return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
             case 232:
@@ -38081,9 +38418,8 @@ var ts;
             case 259:
                 return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
             case 261:
-                context.startLexicalEnvironment();
-                return ts.updateSourceFileNode(node, ts.createNodeArray(ts.concatenate(visitNodes(node.statements, visitor, ts.isStatement), context.endLexicalEnvironment()), node.statements));
-            case 293:
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
+            case 294:
                 return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
             default:
                 var updated = void 0;
@@ -38111,6 +38447,15 @@ var ts;
         }
     }
     ts.visitEachChild = visitEachChild;
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        return ts.isNodeArray(statements)
+            ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
+            : ts.addRange(statements, declarations);
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
     function mergeFunctionBodyLexicalEnvironment(body, declarations) {
         if (body && declarations !== undefined && declarations.length > 0) {
             if (ts.isBlock(body)) {
@@ -38141,22 +38486,37 @@ var ts;
         if (node === undefined) {
             return 0;
         }
-        else if (node.transformFlags & 536870912) {
+        if (node.transformFlags & 536870912) {
             return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
         }
-        else {
-            var subtreeFlags = aggregateTransformFlagsForSubtree(node);
-            return ts.computeTransformFlagsForNode(node, subtreeFlags);
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0;
         }
+        var subtreeFlags = 0;
+        var nodeArrayFlags = 0;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912;
+        }
+        nodes.transformFlags = nodeArrayFlags | 536870912;
+        return subtreeFlags;
     }
     function aggregateTransformFlagsForSubtree(node) {
         if (ts.hasModifier(node, 2) || ts.isTypeNode(node)) {
             return 0;
         }
-        return reduceEachChild(node, aggregateTransformFlagsForChildNode, 0);
+        return reduceEachChild(node, 0, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
+    }
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
     }
-    function aggregateTransformFlagsForChildNode(transformFlags, child) {
-        return transformFlags | aggregateTransformFlagsForNode(child);
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
     }
     var Debug;
     (function (Debug) {
@@ -38166,9 +38526,21 @@ var ts;
         Debug.failBadSyntaxKind = Debug.shouldAssert(1)
             ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
             : ts.noop;
+        Debug.assertEachNode = Debug.shouldAssert(1)
+            ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
         Debug.assertNode = Debug.shouldAssert(1)
             ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
             : ts.noop;
+        Debug.assertOptionalNode = Debug.shouldAssert(1)
+            ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
+        Debug.assertOptionalToken = Debug.shouldAssert(1)
+            ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
+            : ts.noop;
+        Debug.assertMissingNode = Debug.shouldAssert(1)
+            ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
+            : ts.noop;
         function getFunctionName(func) {
             if (typeof func !== "function") {
                 return "";
@@ -38187,440 +38559,316 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    function flattenDestructuringAssignment(context, node, needsValue, recordTempVariable, visitor, transformRest) {
-        if (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
-            var right = node.right;
-            if (ts.isDestructuringAssignment(right)) {
-                return flattenDestructuringAssignment(context, right, needsValue, recordTempVariable, visitor);
-            }
-            else {
-                return node.right;
-            }
-        }
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
         var location = node;
-        var value = node.right;
-        var expressions = [];
-        if (needsValue) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment, visitor);
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return value;
+                }
+            }
         }
-        else if (ts.nodeIsSynthesized(node)) {
-            location = value;
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (needsValue) {
+                value = ensureIdentifier(flattenContext, value, true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                location = value;
+            }
         }
-        flattenDestructuring(node, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        if (needsValue) {
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
             expressions.push(value);
         }
-        var expression = ts.inlineExpressions(expressions);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location) {
-            var expression = ts.createAssignment(name, value, location);
-            ts.setEmitFlags(expression, 2048);
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
+            ts.setEmitFlags(expression, 64);
             ts.aggregateTransformFlags(expression);
-            expressions.push(expression);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitAssignment(name, value, location);
-            return name;
+            expressions = ts.append(expressions, expression);
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
+            expression.original = original;
+            emitExpression(expression);
         }
     }
     ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
-    function flattenParameterDestructuring(node, value, visitor, transformRest) {
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        var pendingExpressions;
+        var pendingDeclarations = [];
         var declarations = [];
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location) {
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            ts.setEmitFlags(declaration, 2048);
-            ts.aggregateTransformFlags(declaration);
-            declarations.push(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(undefined);
-            emitAssignment(name, value, location);
-            return name;
-        }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location);
-        }
-    }
-    ts.flattenParameterDestructuring = flattenParameterDestructuring;
-    function flattenVariableDestructuring(node, value, visitor, recordTempVariable, transformRest) {
-        var declarations = [];
-        var pendingAssignments;
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location, original) {
-            if (pendingAssignments) {
-                pendingAssignments.push(value);
-                value = ts.inlineExpressions(pendingAssignments);
-                pendingAssignments = undefined;
-            }
-            var declaration = ts.createVariableDeclaration(name, undefined, value, location);
-            declaration.original = original;
-            ts.setEmitFlags(declaration, 2048);
-            declarations.push(declaration);
-            ts.aggregateTransformFlags(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            if (recordTempVariable) {
-                var assignment = ts.createAssignment(name, value, location);
-                if (pendingAssignments) {
-                    pendingAssignments.push(assignment);
-                }
-                else {
-                    pendingAssignments = [assignment];
-                }
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, undefined, undefined);
             }
             else {
-                emitAssignment(name, value, location, undefined);
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
             }
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location, original);
-        }
-    }
-    ts.flattenVariableDestructuring = flattenVariableDestructuring;
-    function flattenVariableDestructuringToExpression(node, recordTempVariable, createAssignmentCallback, visitor) {
-        var pendingAssignments = [];
-        flattenDestructuring(node, undefined, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, false, visitor);
-        var expression = ts.inlineExpressions(pendingAssignments);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location, original) {
-            var expression = createAssignmentCallback
-                ? createAssignmentCallback(name.kind === 70 ? name : emitTempVariableAssignment(name, location), value, location)
-                : ts.createAssignment(name, value, location);
-            emitPendingAssignment(expression, original);
         }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitPendingAssignment(ts.createAssignment(name, value, location), undefined);
-            return name;
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_31 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name_31, undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
+            variable.original = original;
+            if (ts.isIdentifier(name_31)) {
+                ts.setEmitFlags(variable, 64);
+            }
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
         }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location, original);
+        return declarations;
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
         }
-        function emitPendingAssignment(expression, original) {
-            expression.original = original;
-            ts.setEmitFlags(expression, 2048);
-            pendingAssignments.push(expression);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
+            }
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
         }
     }
-    ts.flattenVariableDestructuringToExpression = flattenVariableDestructuringToExpression;
-    function flattenDestructuring(root, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor) {
-        if (value && visitor) {
-            value = ts.visitNode(value, visitor, ts.isExpression);
-        }
-        if (ts.isBinaryExpression(root)) {
-            emitDestructuringAssignment(root.left, value, location);
-        }
-        else {
-            emitBindingElement(root, value);
-        }
-        function emitDestructuringAssignment(bindingTarget, value, location) {
-            var target;
-            if (ts.isShorthandPropertyAssignment(bindingTarget)) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.objectAssignmentInitializer, visitor, ts.isExpression)
-                    : bindingTarget.objectAssignmentInitializer;
-                if (initializer) {
-                    value = createDefaultValueCheck(value, initializer, location);
-                }
-                target = bindingTarget.name;
-            }
-            else if (ts.isBinaryExpression(bindingTarget) && bindingTarget.operatorToken.kind === 57) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.right, visitor, ts.isExpression)
-                    : bindingTarget.right;
-                value = createDefaultValueCheck(value, initializer, location);
-                target = bindingTarget.left;
-            }
-            else {
-                target = bindingTarget;
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
             }
-            if (target.kind === 176) {
-                emitObjectLiteralAssignment(target, value, location);
-            }
-            else if (target.kind === 175) {
-                emitArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                var name_32 = ts.getMutableClone(target);
-                ts.setSourceMapRange(name_32, target);
-                ts.setCommentRange(name_32, target);
-                emitAssignment(name_32, value, location, undefined);
+            else if (!value) {
+                value = ts.createVoidZero();
             }
         }
-        function emitObjectLiteralAssignment(target, value, location) {
-            var properties = target.properties;
-            if (properties.length !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var bindingElements = [];
-            for (var i = 0; i < properties.length; i++) {
-                var p = properties[i];
-                if (p.kind === 257 || p.kind === 258) {
-                    if (!transformRest ||
-                        p.transformFlags & 8388608 ||
-                        (p.kind === 257 && p.initializer.transformFlags & 8388608)) {
-                        if (bindingElements.length) {
-                            emitRestAssignment(bindingElements, value, location, target);
-                            bindingElements = [];
-                        }
-                        var propName = p.name;
-                        var bindingTarget = p.kind === 258 ? p : p.initializer || propName;
-                        emitDestructuringAssignment(bindingTarget, createDestructuringPropertyAccess(value, propName), p);
-                    }
-                    else {
-                        bindingElements.push(p);
-                    }
-                }
-                else if (i === properties.length - 1 &&
-                    p.kind === 259 &&
-                    p.expression.kind === 70) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, location, target);
-                        bindingElements = [];
-                    }
-                    var propName = p.expression;
-                    var restCall = createRestCall(value, target.properties, function (p) { return p.name; }, target);
-                    emitDestructuringAssignment(propName, restCall, p);
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, location, target);
-                bindingElements = [];
-            }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitArrayLiteralAssignment(target, value, location) {
-            if (transformRest) {
-                emitESNextArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                emitES2015ArrayLiteralAssignment(target, value, location);
-            }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitESNextArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            var expressions = [];
-            var spreadContainingExpressions = [];
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind === 198) {
-                    continue;
-                }
-                if (e.transformFlags & 8388608 && i < numElements - 1) {
-                    var tmp = ts.createTempVariable(recordTempVariable);
-                    spreadContainingExpressions.push([e, tmp]);
-                    expressions.push(tmp);
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, element);
+        }
+    }
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1
+                    && !(element.transformFlags & (524288 | 1048576))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 | 1048576))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, element);
                 }
                 else {
-                    expressions.push(e);
-                }
-            }
-            emitAssignment(ts.updateArrayLiteral(target, expressions), value, undefined, undefined);
-            for (var _i = 0, spreadContainingExpressions_1 = spreadContainingExpressions; _i < spreadContainingExpressions_1.length; _i++) {
-                var _a = spreadContainingExpressions_1[_i], e = _a[0], tmp = _a[1];
-                emitDestructuringAssignment(e, tmp, e);
-            }
-        }
-        function emitES2015ArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            }
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind !== 198) {
-                    if (e.kind !== 196) {
-                        emitDestructuringAssignment(e, ts.createElementAccess(value, ts.createLiteral(i)), e);
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
                     }
-                    else if (i === numElements - 1) {
-                        emitDestructuringAssignment(e.expression, ts.createArraySlice(value, i), e);
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                     }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
                 }
             }
-        }
-        function createRestCall(value, elements, getPropertyName, location) {
-            var propertyNames = [];
-            for (var i = 0; i < elements.length - 1; i++) {
-                if (ts.isOmittedExpression(elements[i])) {
-                    continue;
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
                 }
-                var str = ts.createSynthesizedNode(9);
-                str.pos = location.pos;
-                str.end = location.end;
-                str.text = ts.getTextOfPropertyName(getPropertyName(elements[i]));
-                propertyNames.push(str);
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            var args = ts.createSynthesizedNodeArray([value, ts.createArrayLiteral(propertyNames, location)]);
-            return ts.createCall(ts.createIdentifier("__rest"), undefined, args);
         }
-        function emitBindingElement(target, value) {
-            var initializer = visitor ? ts.visitNode(target.initializer, visitor, ts.isExpression) : target.initializer;
-            if (transformRest) {
-                value = value || initializer;
-            }
-            else if (initializer) {
-                value = value ? createDefaultValueCheck(value, initializer, target) : initializer;
-            }
-            else if (!value) {
-                value = ts.createVoidZero();
-            }
-            var name = target.name;
-            if (!ts.isBindingPattern(name)) {
-                emitAssignment(name, value, target, target);
-            }
-            else {
-                var numElements = name.elements.length;
-                if (numElements !== 1) {
-                    value = ensureIdentifier(value, numElements !== 0, target, emitTempVariableAssignment);
-                }
-                if (name.kind === 173) {
-                    emitArrayBindingElement(name, value);
-                }
-                else {
-                    emitObjectBindingElement(target, value);
-                }
-            }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function emitArrayBindingElement(name, value) {
-            if (transformRest) {
-                emitESNextArrayBindingElement(name, value);
-            }
-            else {
-                emitES2015ArrayBindingElement(name, value);
-            }
-        }
-        function emitES2015ArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (!element.dotDotDotToken) {
-                    emitBindingElement(element, ts.createElementAccess(value, i));
-                }
-                else if (i === numElements - 1) {
-                    emitBindingElement(element, ts.createArraySlice(value, i));
-                }
-            }
+    }
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1 && (flattenContext.level < 1 || numElements === 0)) {
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
         }
-        function emitESNextArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            var spreadContainingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (element.transformFlags & 8388608 && i < numElements - 1) {
-                    spreadContainingElements.push(element);
-                    bindingElements.push(ts.createBindingElement(undefined, undefined, ts.getGeneratedNameForNode(element), undefined, value));
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1) {
+                if (element.transformFlags & 1048576) {
+                    var temp = ts.createTempVariable(undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
                 }
                 else {
-                    bindingElements.push(element);
+                    bindingElements = ts.append(bindingElements, element);
                 }
             }
-            emitAssignment(ts.updateArrayBindingPattern(name, bindingElements), value, undefined, undefined);
-            for (var _i = 0, spreadContainingElements_1 = spreadContainingElements; _i < spreadContainingElements_1.length; _i++) {
-                var element = spreadContainingElements_1[_i];
-                emitBindingElement(element, ts.getGeneratedNameForNode(element));
+            else if (ts.isOmittedExpression(element)) {
+                continue;
             }
-        }
-        function emitObjectBindingElement(target, value) {
-            var name = target.name;
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (i === numElements - 1 && element.dotDotDotToken) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var restCall = createRestCall(value, name.elements, function (element) { return element.propertyName || element.name; }, name);
-                    emitBindingElement(element, restCall);
-                }
-                else if (transformRest && !(element.transformFlags & 8388608)) {
-                    bindingElements.push(element);
-                }
-                else {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var propName = element.propertyName || element.name;
-                    emitBindingElement(element, createDestructuringPropertyAccess(value, propName));
-                }
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, target, target);
-                bindingElements = [];
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
         }
-        function createDefaultValueCheck(value, defaultValue, location) {
-            value = ensureIdentifier(value, true, location, emitTempVariableAssignment);
-            return ts.createConditional(ts.createStrictEquality(value, ts.createVoidZero()), ts.createToken(54), defaultValue, ts.createToken(55), value);
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function createDestructuringPropertyAccess(expression, propertyName) {
-            if (ts.isComputedPropertyName(propertyName)) {
-                return ts.createElementAccess(expression, ensureIdentifier(propertyName.expression, false, propertyName, emitTempVariableAssignment));
-            }
-            else if (ts.isLiteralExpression(propertyName)) {
-                var clone_2 = ts.getSynthesizedClone(propertyName);
-                clone_2.text = ts.unescapeIdentifier(clone_2.text);
-                return ts.createElementAccess(expression, clone_2);
-            }
-            else {
-                if (ts.isGeneratedIdentifier(propertyName)) {
-                    var clone_3 = ts.getSynthesizedClone(propertyName);
-                    clone_3.text = ts.unescapeIdentifier(clone_3.text);
-                    return ts.createPropertyAccess(expression, clone_3);
-                }
-                else {
-                    return ts.createPropertyAccess(expression, ts.createIdentifier(ts.unescapeIdentifier(propertyName.text)));
-                }
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
             }
         }
     }
-    function ensureIdentifier(value, reuseIdentifierExpressions, location, emitTempVariableAssignment, visitor) {
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, false, propertyName);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else if (ts.isStringOrNumericLiteral(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name_32 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
+            return ts.createPropertyAccess(value, name_32);
+        }
+    }
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
         if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
             return value;
         }
         else {
-            if (visitor) {
-                value = ts.visitNode(value, visitor, ts.isExpression);
+            var temp = ts.createTempVariable(undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.createAssignment(temp, value, location));
             }
-            return emitTempVariableAssignment(value, location);
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, undefined);
+            }
+            return temp;
         }
     }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(undefined, undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    var restHelper = {
+        name: "typescript:rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
+    };
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
+            }
+        }
+        return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
+    }
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     var USE_NEW_TYPE_METADATA_FORMAT = false;
     function transformTypeScript(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
@@ -38636,7 +38884,6 @@ var ts;
         var currentNamespaceContainerName;
         var currentScope;
         var currentScopeFirstDeclarationsOfName;
-        var currentExternalHelpersModuleName;
         var enabledSubstitutions;
         var classAliases;
         var applicableSubstitutions;
@@ -38645,7 +38892,11 @@ var ts;
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function saveStateAndInvoke(node, f) {
             var savedCurrentScope = currentScope;
@@ -38658,14 +38909,29 @@ var ts;
             currentScope = savedCurrentScope;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 261:
+                case 232:
+                case 231:
+                case 204:
+                    currentScope = node;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 226:
+                case 225:
+                    if (ts.hasModifier(node, 2)) {
+                        break;
+                    }
+                    recordEmittedDeclarationInScope(node);
+                    break;
+            }
+        }
         function visitor(node) {
             return saveStateAndInvoke(node, visitorWorker);
         }
         function visitorWorker(node) {
-            if (node.kind === 261) {
-                return visitSourceFile(node);
-            }
-            else if (node.transformFlags & 1) {
+            if (node.transformFlags & 1) {
                 return visitTypeScript(node);
             }
             else if (node.transformFlags & 2) {
@@ -38833,53 +39099,9 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            switch (node.kind) {
-                case 261:
-                case 232:
-                case 231:
-                case 204:
-                    currentScope = node;
-                    currentScopeFirstDeclarationsOfName = undefined;
-                    break;
-                case 226:
-                case 225:
-                    if (ts.hasModifier(node, 2)) {
-                        break;
-                    }
-                    recordEmittedDeclarationInScope(node);
-                    break;
-            }
-        }
         function visitSourceFile(node) {
-            currentSourceFile = node;
-            if (compilerOptions.alwaysStrict &&
-                !(ts.isExternalModule(node) && (compilerOptions.target >= 2 || compilerOptions.module === ts.ModuleKind.ES2015))) {
-                node = ts.ensureUseStrict(node);
-            }
-            if (node.flags & 64512
-                && compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                startLexicalEnvironment();
-                var statements = [];
-                var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
-                var externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText);
-                var externalHelpersModuleImport = ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText));
-                externalHelpersModuleImport.parent = node;
-                externalHelpersModuleImport.flags &= ~8;
-                statements.push(externalHelpersModuleImport);
-                currentExternalHelpersModuleName = externalHelpersModuleName;
-                ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
-                ts.addRange(statements, endLexicalEnvironment());
-                currentExternalHelpersModuleName = undefined;
-                node = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
-                node.externalHelpersModuleName = externalHelpersModuleName;
-            }
-            else {
-                node = ts.visitEachChild(node, sourceElementVisitor, context);
-            }
-            ts.setEmitFlags(node, 1 | ts.getEmitFlags(node));
-            return node;
+            var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, 0, alwaysStrict));
         }
         function shouldEmitDecorateCallForClass(node) {
             if (node.decorators && node.decorators.length > 0) {
@@ -38925,7 +39147,7 @@ var ts;
             }
             if (statements.length > 1) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 33554432);
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -38933,7 +39155,7 @@ var ts;
             var classDeclaration = ts.createClassDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), name, undefined, ts.visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), transformClassMembers(node, hasExtendsClause), node);
             var emitFlags = ts.getEmitFlags(node);
             if (hasStaticProperties) {
-                emitFlags |= 1024;
+                emitFlags |= 32;
             }
             ts.setOriginalNode(classDeclaration, node);
             ts.setEmitFlags(classDeclaration, emitFlags);
@@ -38964,7 +39186,7 @@ var ts;
                     enableSubstitutionForClassAliases();
                     classAliases[ts.getOriginalNodeId(node)] = ts.getSynthesizedClone(temp);
                 }
-                ts.setEmitFlags(classExpression, 524288 | ts.getEmitFlags(classExpression));
+                ts.setEmitFlags(classExpression, 32768 | ts.getEmitFlags(classExpression));
                 expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
                 ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
                 expressions.push(ts.startOnNewLine(temp));
@@ -38983,7 +39205,7 @@ var ts;
         }
         function transformConstructor(node, hasExtendsClause) {
             var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
-            var hasParameterPropertyAssignments = node.transformFlags & 4194304;
+            var hasParameterPropertyAssignments = node.transformFlags & 262144;
             var constructor = ts.getFirstConstructorWithBody(node);
             if (!hasInstancePropertyWithInitializer && !hasParameterPropertyAssignments) {
                 return ts.visitEachChild(constructor, visitor, context);
@@ -38993,14 +39215,13 @@ var ts;
             return ts.startOnNewLine(ts.setOriginalNode(ts.createConstructor(undefined, undefined, parameters, body, constructor || node), constructor));
         }
         function transformConstructorParameters(constructor) {
-            return constructor
-                ? ts.visitNodes(constructor.parameters, visitor, ts.isParameter)
-                : [];
+            return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(node, constructor, hasExtendsClause) {
             var statements = [];
             var indexOfFirstStatement = 0;
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             if (constructor) {
                 indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
                 var propertyAssignments = getParametersWithPropertyAssignments(constructor);
@@ -39015,7 +39236,7 @@ var ts;
                 ts.addRange(statements, ts.visitNodes(constructor.body.statements, visitor, ts.isStatement, indexOfFirstStatement));
             }
             ts.addRange(statements, endLexicalEnvironment());
-            return ts.setMultiLine(ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined), true);
+            return ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : undefined, true);
         }
         function addPrologueDirectivesAndInitialSuperCall(ctor, result) {
             if (ctor.body) {
@@ -39044,9 +39265,9 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name));
             var name = node.name;
             var propertyName = ts.getMutableClone(name);
-            ts.setEmitFlags(propertyName, 49152 | 1536);
+            ts.setEmitFlags(propertyName, 1536 | 48);
             var localName = ts.getMutableClone(name);
-            ts.setEmitFlags(localName, 49152);
+            ts.setEmitFlags(localName, 1536);
             return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, node.name), localName), ts.moveRangePos(node, -1)));
         }
         function getInitializedProperties(node, isStatic) {
@@ -39219,8 +39440,8 @@ var ts;
                     ? ts.createVoidZero()
                     : ts.createNull()
                 : undefined;
-            var helper = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
-            ts.setEmitFlags(helper, 49152);
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536);
             return helper;
         }
         function addConstructorDecorationStatement(statements, node) {
@@ -39237,9 +39458,9 @@ var ts;
             }
             var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
             var localName = ts.getLocalName(node, false, true);
-            var decorate = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, localName);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
             var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
-            ts.setEmitFlags(expression, 49152);
+            ts.setEmitFlags(expression, 1536);
             ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
             return expression;
         }
@@ -39252,8 +39473,8 @@ var ts;
                 expressions = [];
                 for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                     var decorator = decorators_1[_i];
-                    var helper = ts.createParamHelper(currentExternalHelpersModuleName, transformDecorator(decorator), parameterOffset, decorator.expression);
-                    ts.setEmitFlags(helper, 49152);
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, decorator.expression);
+                    ts.setEmitFlags(helper, 1536);
                     expressions.push(helper);
                 }
             }
@@ -39270,13 +39491,13 @@ var ts;
         function addOldTypeMetadata(node, decoratorExpressions) {
             if (compilerOptions.emitDecoratorMetadata) {
                 if (shouldAddTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:type", serializeTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
                 }
                 if (shouldAddParamTypesMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:paramtypes", serializeParameterTypesOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node)));
                 }
                 if (shouldAddReturnTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:returntype", serializeReturnTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
                 }
             }
         }
@@ -39293,7 +39514,7 @@ var ts;
                     (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(undefined, undefined, [], undefined, ts.createToken(35), serializeReturnTypeOfNode(node))));
                 }
                 if (properties) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, undefined, true)));
                 }
             }
         }
@@ -39462,7 +39683,7 @@ var ts;
                 case ts.TypeReferenceSerializationKind.Unknown:
                     var serialized = serializeEntityNameAsExpression(node.typeName, true);
                     var temp = ts.createTempVariable(hoistVariableDeclaration);
-                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictEquality(ts.createTypeOf(ts.createAssignment(temp, serialized)), ts.createLiteral("function")), temp), ts.createIdentifier("Object"));
+                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
                 case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                     return serializeEntityNameAsExpression(node.typeName, false);
                 case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
@@ -39518,7 +39739,7 @@ var ts;
             return ts.createPropertyAccess(left, node.right);
         }
         function getGlobalSymbolNameWithFallback() {
-            return ts.createConditional(ts.createStrictEquality(ts.createTypeOf(ts.createIdentifier("Symbol")), ts.createLiteral("function")), ts.createToken(54), ts.createIdentifier("Symbol"), ts.createToken(55), ts.createIdentifier("Object"));
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
         }
         function getExpressionForPropertyName(member, generateNameForComputedPropertyName) {
             var name = member.name;
@@ -39573,11 +39794,12 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return undefined;
             }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            var updated = ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function shouldEmitAccessorDeclaration(node) {
             return !(ts.nodeIsMissing(node.body) && ts.hasModifier(node, 128));
@@ -39586,86 +39808,46 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createGetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateGetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitSetAccessor(node) {
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createSetAccessor(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), node);
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateSetAccessor(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         function visitFunctionDeclaration(node) {
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return ts.createNotEmittedStatement(node);
             }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
+            var updated = ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
             if (isNamespaceExport(node)) {
-                var statements = [func];
+                var statements = [updated];
                 addExportMemberAssignment(statements, node);
                 return statements;
             }
-            return func;
+            return updated;
         }
         function visitFunctionExpression(node) {
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitArrowFunction(node) {
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformFunctionBodyWorker(node.body);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
-            currentScope = body;
-            currentScopeFirstDeclarationsOfName = ts.createMap();
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-        }
-        function transformConciseBody(node) {
-            return transformConciseBodyWorker(node.body, false);
-        }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
-            if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
-            }
-            else {
-                startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
-                var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
-            }
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         function visitParameter(node) {
             if (ts.parameterIsThisKeyword(node)) {
@@ -39675,7 +39857,7 @@ var ts;
             ts.setOriginalNode(parameter, node);
             ts.setCommentRange(parameter, node);
             ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
-            ts.setEmitFlags(parameter.name, 1024);
+            ts.setEmitFlags(parameter.name, 32);
             return parameter;
         }
         function visitVariableStatement(node) {
@@ -39693,7 +39875,7 @@ var ts;
         function transformInitializedVariable(node) {
             var name = node.name;
             if (ts.isBindingPattern(name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createNamespaceExportExpression, visitor);
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, false, createNamespaceExportExpression);
             }
             else {
                 return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), node);
@@ -39734,10 +39916,10 @@ var ts;
                 return undefined;
             }
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -39829,13 +40011,13 @@ var ts;
                     ts.setSourceMapRange(statement, node);
                 }
                 ts.setCommentRange(statement, node);
-                ts.setEmitFlags(statement, 32768 | 33554432);
+                ts.setEmitFlags(statement, 1024 | 2097152);
                 statements.push(statement);
                 return true;
             }
             else {
                 var mergeMarker = ts.createMergeDeclarationMarker(statement);
-                ts.setEmitFlags(mergeMarker, 49152 | 33554432);
+                ts.setEmitFlags(mergeMarker, 1536 | 2097152);
                 statements.push(mergeMarker);
                 return false;
             }
@@ -39847,10 +40029,10 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name), "TypeScript module should have an Identifier name.");
             enableSubstitutionForNamespaceExports();
             var statements = [];
-            var emitFlags = 64;
+            var emitFlags = 2;
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384;
+                    emitFlags |= 512;
                 }
             }
             var parameterName = getNamespaceParameterName(node);
@@ -39906,7 +40088,7 @@ var ts;
             currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
             var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), blockLocation, true);
             if (body.kind !== 231) {
-                ts.setEmitFlags(block, ts.getEmitFlags(block) | 49152);
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536);
             }
             return block;
         }
@@ -39981,7 +40163,7 @@ var ts;
                 return undefined;
             }
             var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
-            ts.setEmitFlags(moduleReference, 49152 | 65536);
+            ts.setEmitFlags(moduleReference, 1536 | 2048);
             if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
                 return ts.setOriginalNode(ts.createVariableStatement(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), ts.createVariableDeclarationList([
                     ts.setOriginalNode(ts.createVariableDeclaration(node.name, undefined, moduleReference), node)
@@ -40134,10 +40316,10 @@ var ts;
                     if (declaration) {
                         var classAlias = classAliases[declaration.id];
                         if (classAlias) {
-                            var clone_4 = ts.getSynthesizedClone(classAlias);
-                            ts.setSourceMapRange(clone_4, node);
-                            ts.setCommentRange(clone_4, node);
-                            return clone_4;
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
                         }
                     }
                 }
@@ -40145,7 +40327,7 @@ var ts;
             return undefined;
         }
         function trySubstituteNamespaceExportedName(node) {
-            if (enabledSubstitutions & applicableSubstitutions && !ts.isLocalName(node)) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var container = resolver.getReferencedExportContainer(node, false);
                 if (container && container.kind !== 261) {
                     var substitute = (applicableSubstitutions & 2 && container.kind === 230) ||
@@ -40190,10 +40372,278 @@ var ts;
         }
     }
     ts.transformTypeScript = transformTypeScript;
+    var paramHelper = {
+        name: "typescript:param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(paramHelper);
+        return ts.createCall(ts.getHelperName("__param"), undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ], location);
+    }
+    var metadataHelper = {
+        name: "typescript:metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(metadataHelper);
+        return ts.createCall(ts.getHelperName("__metadata"), undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    var decorateHelper = {
+        name: "typescript:decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        context.requestEmitHelper(decorateHelper);
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, undefined, true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        return ts.createCall(ts.getHelperName("__decorate"), undefined, argumentsArray, location);
+    }
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    function transformESNext(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        return transformSourceFile;
+        function transformSourceFile(node) {
+            if (ts.isDeclarationFile(node)) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, true);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 8) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 176:
+                    return visitObjectLiteralExpression(node);
+                case 192:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 223:
+                    return visitVariableDeclaration(node);
+                case 213:
+                    return visitForOfStatement(node);
+                case 211:
+                    return visitForStatement(node);
+                case 188:
+                    return visitVoidExpression(node);
+                case 150:
+                    return visitConstructorDeclaration(node);
+                case 149:
+                    return visitMethodDeclaration(node);
+                case 151:
+                    return visitGetAccessorDeclaration(node);
+                case 152:
+                    return visitSetAccessorDeclaration(node);
+                case 225:
+                    return visitFunctionDeclaration(node);
+                case 184:
+                    return visitFunctionExpression(node);
+                case 185:
+                    return visitArrowFunction(node);
+                case 144:
+                    return visitParameter(node);
+                case 207:
+                    return visitExpressionStatement(node);
+                case 183:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+                var e = elements_3[_i];
+                if (e.kind === 259) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    if (!chunkObject) {
+                        chunkObject = [];
+                    }
+                    if (e.kind === 257) {
+                        var p = e;
+                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
+                    }
+                    else {
+                        chunkObject.push(e);
+                    }
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 1048576) {
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 176) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                return createAssignHelper(context, objects);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 25) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitVariableDeclaration(node) {
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitForOfStatement(node) {
+            var leadingStatements;
+            var temp;
+            var initializer = ts.skipParentheses(node.initializer);
+            if (initializer.transformFlags & 1048576) {
+                if (ts.isVariableDeclarationList(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
+                    var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.updateVariableDeclarationList(initializer, declarations), initializer);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+                else if (ts.isAssignmentPattern(initializer)) {
+                    temp = ts.createTempVariable(undefined);
+                    var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, node.initializer)), visitor, context, 1);
+                    leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, node.initializer));
+                }
+            }
+            if (temp) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                var block = ts.isBlock(statement)
+                    ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
+                    : ts.createBlock(ts.append(leadingStatements, statement), statement, true);
+                return ts.updateForOf(node, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(temp, undefined, undefined, node.initializer)
+                ], node.initializer, 1), expression, block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 1048576) {
+                return ts.updateParameter(node, undefined, undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            return ts.updateConstructor(node, undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitGetAccessorDeclaration(node) {
+            return ts.updateGetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitSetAccessorDeclaration(node) {
+            return ts.updateSetAccessor(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, node.modifiers, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node));
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var leadingStatements;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 1048576) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1, temp, false, true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 524288);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+            }
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            var trailingStatements = endLexicalEnvironment();
+            if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
+                var block = ts.convertToFunctionBody(body, true);
+                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
+            }
+            return body;
+        }
+    }
+    ts.transformESNext = transformESNext;
+    var assignHelper = {
+        name: "typescript:assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        context.requestEmitHelper(assignHelper);
+        return ts.createCall(ts.getHelperName("__assign"), undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    var entities = createEntitiesMap();
     function transformJsx(context) {
         var compilerOptions = context.getCompilerOptions();
         var currentSourceFile;
@@ -40203,17 +40653,15 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            node = ts.visitEachChild(node, visitor, context);
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
             currentSourceFile = undefined;
-            return node;
+            return visited;
         }
         function visitor(node) {
             if (node.transformFlags & 4) {
                 return visitorWorker(node);
             }
-            else if (node.transformFlags & 8) {
-                return ts.visitEachChild(node, visitor, context);
-            }
             else {
                 return node;
             }
@@ -40227,8 +40675,7 @@ var ts;
                 case 252:
                     return visitJsxExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return undefined;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function transformJsxChildToExpression(node) {
@@ -40266,8 +40713,10 @@ var ts;
                 if (ts.isJsxSpreadAttribute(attrs[0])) {
                     segments.unshift(ts.createObjectLiteral());
                 }
-                objectProperties = ts.singleOrUndefined(segments)
-                    || ts.createAssignHelper(currentSourceFile.externalHelpersModuleName, segments);
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
             }
             var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
             if (isChild) {
@@ -40383,458 +40832,291 @@ var ts;
         }
     }
     ts.transformJsx = transformJsx;
-    function createEntitiesMap() {
-        return ts.createMap({
-            "quot": 0x0022,
-            "amp": 0x0026,
-            "apos": 0x0027,
-            "lt": 0x003C,
-            "gt": 0x003E,
-            "nbsp": 0x00A0,
-            "iexcl": 0x00A1,
-            "cent": 0x00A2,
-            "pound": 0x00A3,
-            "curren": 0x00A4,
-            "yen": 0x00A5,
-            "brvbar": 0x00A6,
-            "sect": 0x00A7,
-            "uml": 0x00A8,
-            "copy": 0x00A9,
-            "ordf": 0x00AA,
-            "laquo": 0x00AB,
-            "not": 0x00AC,
-            "shy": 0x00AD,
-            "reg": 0x00AE,
-            "macr": 0x00AF,
-            "deg": 0x00B0,
-            "plusmn": 0x00B1,
-            "sup2": 0x00B2,
-            "sup3": 0x00B3,
-            "acute": 0x00B4,
-            "micro": 0x00B5,
-            "para": 0x00B6,
-            "middot": 0x00B7,
-            "cedil": 0x00B8,
-            "sup1": 0x00B9,
-            "ordm": 0x00BA,
-            "raquo": 0x00BB,
-            "frac14": 0x00BC,
-            "frac12": 0x00BD,
-            "frac34": 0x00BE,
-            "iquest": 0x00BF,
-            "Agrave": 0x00C0,
-            "Aacute": 0x00C1,
-            "Acirc": 0x00C2,
-            "Atilde": 0x00C3,
-            "Auml": 0x00C4,
-            "Aring": 0x00C5,
-            "AElig": 0x00C6,
-            "Ccedil": 0x00C7,
-            "Egrave": 0x00C8,
-            "Eacute": 0x00C9,
-            "Ecirc": 0x00CA,
-            "Euml": 0x00CB,
-            "Igrave": 0x00CC,
-            "Iacute": 0x00CD,
-            "Icirc": 0x00CE,
-            "Iuml": 0x00CF,
-            "ETH": 0x00D0,
-            "Ntilde": 0x00D1,
-            "Ograve": 0x00D2,
-            "Oacute": 0x00D3,
-            "Ocirc": 0x00D4,
-            "Otilde": 0x00D5,
-            "Ouml": 0x00D6,
-            "times": 0x00D7,
-            "Oslash": 0x00D8,
-            "Ugrave": 0x00D9,
-            "Uacute": 0x00DA,
-            "Ucirc": 0x00DB,
-            "Uuml": 0x00DC,
-            "Yacute": 0x00DD,
-            "THORN": 0x00DE,
-            "szlig": 0x00DF,
-            "agrave": 0x00E0,
-            "aacute": 0x00E1,
-            "acirc": 0x00E2,
-            "atilde": 0x00E3,
-            "auml": 0x00E4,
-            "aring": 0x00E5,
-            "aelig": 0x00E6,
-            "ccedil": 0x00E7,
-            "egrave": 0x00E8,
-            "eacute": 0x00E9,
-            "ecirc": 0x00EA,
-            "euml": 0x00EB,
-            "igrave": 0x00EC,
-            "iacute": 0x00ED,
-            "icirc": 0x00EE,
-            "iuml": 0x00EF,
-            "eth": 0x00F0,
-            "ntilde": 0x00F1,
-            "ograve": 0x00F2,
-            "oacute": 0x00F3,
-            "ocirc": 0x00F4,
-            "otilde": 0x00F5,
-            "ouml": 0x00F6,
-            "divide": 0x00F7,
-            "oslash": 0x00F8,
-            "ugrave": 0x00F9,
-            "uacute": 0x00FA,
-            "ucirc": 0x00FB,
-            "uuml": 0x00FC,
-            "yacute": 0x00FD,
-            "thorn": 0x00FE,
-            "yuml": 0x00FF,
-            "OElig": 0x0152,
-            "oelig": 0x0153,
-            "Scaron": 0x0160,
-            "scaron": 0x0161,
-            "Yuml": 0x0178,
-            "fnof": 0x0192,
-            "circ": 0x02C6,
-            "tilde": 0x02DC,
-            "Alpha": 0x0391,
-            "Beta": 0x0392,
-            "Gamma": 0x0393,
-            "Delta": 0x0394,
-            "Epsilon": 0x0395,
-            "Zeta": 0x0396,
-            "Eta": 0x0397,
-            "Theta": 0x0398,
-            "Iota": 0x0399,
-            "Kappa": 0x039A,
-            "Lambda": 0x039B,
-            "Mu": 0x039C,
-            "Nu": 0x039D,
-            "Xi": 0x039E,
-            "Omicron": 0x039F,
-            "Pi": 0x03A0,
-            "Rho": 0x03A1,
-            "Sigma": 0x03A3,
-            "Tau": 0x03A4,
-            "Upsilon": 0x03A5,
-            "Phi": 0x03A6,
-            "Chi": 0x03A7,
-            "Psi": 0x03A8,
-            "Omega": 0x03A9,
-            "alpha": 0x03B1,
-            "beta": 0x03B2,
-            "gamma": 0x03B3,
-            "delta": 0x03B4,
-            "epsilon": 0x03B5,
-            "zeta": 0x03B6,
-            "eta": 0x03B7,
-            "theta": 0x03B8,
-            "iota": 0x03B9,
-            "kappa": 0x03BA,
-            "lambda": 0x03BB,
-            "mu": 0x03BC,
-            "nu": 0x03BD,
-            "xi": 0x03BE,
-            "omicron": 0x03BF,
-            "pi": 0x03C0,
-            "rho": 0x03C1,
-            "sigmaf": 0x03C2,
-            "sigma": 0x03C3,
-            "tau": 0x03C4,
-            "upsilon": 0x03C5,
-            "phi": 0x03C6,
-            "chi": 0x03C7,
-            "psi": 0x03C8,
-            "omega": 0x03C9,
-            "thetasym": 0x03D1,
-            "upsih": 0x03D2,
-            "piv": 0x03D6,
-            "ensp": 0x2002,
-            "emsp": 0x2003,
-            "thinsp": 0x2009,
-            "zwnj": 0x200C,
-            "zwj": 0x200D,
-            "lrm": 0x200E,
-            "rlm": 0x200F,
-            "ndash": 0x2013,
-            "mdash": 0x2014,
-            "lsquo": 0x2018,
-            "rsquo": 0x2019,
-            "sbquo": 0x201A,
-            "ldquo": 0x201C,
-            "rdquo": 0x201D,
-            "bdquo": 0x201E,
-            "dagger": 0x2020,
-            "Dagger": 0x2021,
-            "bull": 0x2022,
-            "hellip": 0x2026,
-            "permil": 0x2030,
-            "prime": 0x2032,
-            "Prime": 0x2033,
-            "lsaquo": 0x2039,
-            "rsaquo": 0x203A,
-            "oline": 0x203E,
-            "frasl": 0x2044,
-            "euro": 0x20AC,
-            "image": 0x2111,
-            "weierp": 0x2118,
-            "real": 0x211C,
-            "trade": 0x2122,
-            "alefsym": 0x2135,
-            "larr": 0x2190,
-            "uarr": 0x2191,
-            "rarr": 0x2192,
-            "darr": 0x2193,
-            "harr": 0x2194,
-            "crarr": 0x21B5,
-            "lArr": 0x21D0,
-            "uArr": 0x21D1,
-            "rArr": 0x21D2,
-            "dArr": 0x21D3,
-            "hArr": 0x21D4,
-            "forall": 0x2200,
-            "part": 0x2202,
-            "exist": 0x2203,
-            "empty": 0x2205,
-            "nabla": 0x2207,
-            "isin": 0x2208,
-            "notin": 0x2209,
-            "ni": 0x220B,
-            "prod": 0x220F,
-            "sum": 0x2211,
-            "minus": 0x2212,
-            "lowast": 0x2217,
-            "radic": 0x221A,
-            "prop": 0x221D,
-            "infin": 0x221E,
-            "ang": 0x2220,
-            "and": 0x2227,
-            "or": 0x2228,
-            "cap": 0x2229,
-            "cup": 0x222A,
-            "int": 0x222B,
-            "there4": 0x2234,
-            "sim": 0x223C,
-            "cong": 0x2245,
-            "asymp": 0x2248,
-            "ne": 0x2260,
-            "equiv": 0x2261,
-            "le": 0x2264,
-            "ge": 0x2265,
-            "sub": 0x2282,
-            "sup": 0x2283,
-            "nsub": 0x2284,
-            "sube": 0x2286,
-            "supe": 0x2287,
-            "oplus": 0x2295,
-            "otimes": 0x2297,
-            "perp": 0x22A5,
-            "sdot": 0x22C5,
-            "lceil": 0x2308,
-            "rceil": 0x2309,
-            "lfloor": 0x230A,
-            "rfloor": 0x230B,
-            "lang": 0x2329,
-            "rang": 0x232A,
-            "loz": 0x25CA,
-            "spades": 0x2660,
-            "clubs": 0x2663,
-            "hearts": 0x2665,
-            "diams": 0x2666
-        });
-    }
-})(ts || (ts = {}));
-var ts;
-(function (ts) {
-    function transformESNext(context) {
-        var hoistVariableDeclaration = context.hoistVariableDeclaration;
-        var currentSourceFile;
-        return transformSourceFile;
-        function transformSourceFile(node) {
-            currentSourceFile = node;
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitor(node) {
-            if (node.transformFlags & 16) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 32) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
-                return node;
-            }
-        }
-        function visitorWorker(node) {
-            switch (node.kind) {
-                case 176:
-                    return visitObjectLiteralExpression(node);
-                case 192:
-                    return visitBinaryExpression(node);
-                case 223:
-                    return visitVariableDeclaration(node);
-                case 213:
-                    return visitForOfStatement(node);
-                case 172:
-                case 173:
-                    return node;
-                case 225:
-                    return visitFunctionDeclaration(node);
-                case 184:
-                    return visitFunctionExpression(node);
-                case 185:
-                    return visitArrowFunction(node);
-                case 144:
-                    return visitParameter(node);
-                default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return ts.visitEachChild(node, visitor, context);
-            }
-        }
-        function chunkObjectLiteralElements(elements) {
-            var chunkObject;
-            var objects = [];
-            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
-                var e = elements_3[_i];
-                if (e.kind === 259) {
-                    if (chunkObject) {
-                        objects.push(ts.createObjectLiteral(chunkObject));
-                        chunkObject = undefined;
-                    }
-                    var target = e.expression;
-                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
-                }
-                else {
-                    if (!chunkObject) {
-                        chunkObject = [];
-                    }
-                    if (e.kind === 257) {
-                        var p = e;
-                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
-                    }
-                    else {
-                        chunkObject.push(e);
-                    }
-                }
-            }
-            if (chunkObject) {
-                objects.push(ts.createObjectLiteral(chunkObject));
-            }
-            return objects;
-        }
-        function visitObjectLiteralExpression(node) {
-            if (ts.forEach(node.properties, function (p) { return p.kind === 259; })) {
-                var objects = chunkObjectLiteralElements(node.properties);
-                if (objects.length && objects[0].kind !== 176) {
-                    objects.unshift(ts.createObjectLiteral());
-                }
-                return ts.aggregateTransformFlags(ts.createCall(ts.createIdentifier("__assign"), undefined, objects));
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitBinaryExpression(node) {
-            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 48) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, visitor, true);
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitVariableDeclaration(node) {
-            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 48) {
-                var result = ts.flattenVariableDestructuring(node, undefined, visitor, undefined, true);
-                return result;
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitForOfStatement(node) {
-            var initializer = node.initializer;
-            if (!isRestBindingPattern(initializer) && !isRestAssignment(initializer)) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            return ts.convertForOf(node, undefined, visitor, ts.noop, context, true);
-        }
-        function isRestBindingPattern(initializer) {
-            if (ts.isVariableDeclarationList(initializer)) {
-                var declaration = ts.firstOrUndefined(initializer.declarations);
-                return declaration && declaration.name &&
-                    declaration.name.kind === 172 &&
-                    !!(declaration.name.transformFlags & 8388608);
-            }
-            return false;
-        }
-        function isRestAssignment(initializer) {
-            return initializer.kind === 176 &&
-                initializer.transformFlags & 8388608;
-        }
-        function visitParameter(node) {
-            if (isObjectRestParameter(node)) {
-                return ts.setOriginalNode(ts.createParameter(undefined, undefined, undefined, ts.getGeneratedNameForNode(node), undefined, undefined, node.initializer, node), node);
-            }
-            else {
-                return node;
-            }
-        }
-        function isObjectRestParameter(node) {
-            return node.name &&
-                node.name.kind === 172 &&
-                !!(node.name.transformFlags & 8388608);
-        }
-        function visitFunctionDeclaration(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-        function visitArrowFunction(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            var func = ts.setOriginalNode(ts.createArrowFunction(node.modifiers, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, body, node), node);
-            ts.setEmitFlags(func, 256);
-            return func;
-        }
-        function visitFunctionExpression(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionExpression(node.modifiers, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, body, node), node);
-        }
-    }
-    ts.transformESNext = transformESNext;
+    var entities = ts.createMap({
+        "quot": 0x0022,
+        "amp": 0x0026,
+        "apos": 0x0027,
+        "lt": 0x003C,
+        "gt": 0x003E,
+        "nbsp": 0x00A0,
+        "iexcl": 0x00A1,
+        "cent": 0x00A2,
+        "pound": 0x00A3,
+        "curren": 0x00A4,
+        "yen": 0x00A5,
+        "brvbar": 0x00A6,
+        "sect": 0x00A7,
+        "uml": 0x00A8,
+        "copy": 0x00A9,
+        "ordf": 0x00AA,
+        "laquo": 0x00AB,
+        "not": 0x00AC,
+        "shy": 0x00AD,
+        "reg": 0x00AE,
+        "macr": 0x00AF,
+        "deg": 0x00B0,
+        "plusmn": 0x00B1,
+        "sup2": 0x00B2,
+        "sup3": 0x00B3,
+        "acute": 0x00B4,
+        "micro": 0x00B5,
+        "para": 0x00B6,
+        "middot": 0x00B7,
+        "cedil": 0x00B8,
+        "sup1": 0x00B9,
+        "ordm": 0x00BA,
+        "raquo": 0x00BB,
+        "frac14": 0x00BC,
+        "frac12": 0x00BD,
+        "frac34": 0x00BE,
+        "iquest": 0x00BF,
+        "Agrave": 0x00C0,
+        "Aacute": 0x00C1,
+        "Acirc": 0x00C2,
+        "Atilde": 0x00C3,
+        "Auml": 0x00C4,
+        "Aring": 0x00C5,
+        "AElig": 0x00C6,
+        "Ccedil": 0x00C7,
+        "Egrave": 0x00C8,
+        "Eacute": 0x00C9,
+        "Ecirc": 0x00CA,
+        "Euml": 0x00CB,
+        "Igrave": 0x00CC,
+        "Iacute": 0x00CD,
+        "Icirc": 0x00CE,
+        "Iuml": 0x00CF,
+        "ETH": 0x00D0,
+        "Ntilde": 0x00D1,
+        "Ograve": 0x00D2,
+        "Oacute": 0x00D3,
+        "Ocirc": 0x00D4,
+        "Otilde": 0x00D5,
+        "Ouml": 0x00D6,
+        "times": 0x00D7,
+        "Oslash": 0x00D8,
+        "Ugrave": 0x00D9,
+        "Uacute": 0x00DA,
+        "Ucirc": 0x00DB,
+        "Uuml": 0x00DC,
+        "Yacute": 0x00DD,
+        "THORN": 0x00DE,
+        "szlig": 0x00DF,
+        "agrave": 0x00E0,
+        "aacute": 0x00E1,
+        "acirc": 0x00E2,
+        "atilde": 0x00E3,
+        "auml": 0x00E4,
+        "aring": 0x00E5,
+        "aelig": 0x00E6,
+        "ccedil": 0x00E7,
+        "egrave": 0x00E8,
+        "eacute": 0x00E9,
+        "ecirc": 0x00EA,
+        "euml": 0x00EB,
+        "igrave": 0x00EC,
+        "iacute": 0x00ED,
+        "icirc": 0x00EE,
+        "iuml": 0x00EF,
+        "eth": 0x00F0,
+        "ntilde": 0x00F1,
+        "ograve": 0x00F2,
+        "oacute": 0x00F3,
+        "ocirc": 0x00F4,
+        "otilde": 0x00F5,
+        "ouml": 0x00F6,
+        "divide": 0x00F7,
+        "oslash": 0x00F8,
+        "ugrave": 0x00F9,
+        "uacute": 0x00FA,
+        "ucirc": 0x00FB,
+        "uuml": 0x00FC,
+        "yacute": 0x00FD,
+        "thorn": 0x00FE,
+        "yuml": 0x00FF,
+        "OElig": 0x0152,
+        "oelig": 0x0153,
+        "Scaron": 0x0160,
+        "scaron": 0x0161,
+        "Yuml": 0x0178,
+        "fnof": 0x0192,
+        "circ": 0x02C6,
+        "tilde": 0x02DC,
+        "Alpha": 0x0391,
+        "Beta": 0x0392,
+        "Gamma": 0x0393,
+        "Delta": 0x0394,
+        "Epsilon": 0x0395,
+        "Zeta": 0x0396,
+        "Eta": 0x0397,
+        "Theta": 0x0398,
+        "Iota": 0x0399,
+        "Kappa": 0x039A,
+        "Lambda": 0x039B,
+        "Mu": 0x039C,
+        "Nu": 0x039D,
+        "Xi": 0x039E,
+        "Omicron": 0x039F,
+        "Pi": 0x03A0,
+        "Rho": 0x03A1,
+        "Sigma": 0x03A3,
+        "Tau": 0x03A4,
+        "Upsilon": 0x03A5,
+        "Phi": 0x03A6,
+        "Chi": 0x03A7,
+        "Psi": 0x03A8,
+        "Omega": 0x03A9,
+        "alpha": 0x03B1,
+        "beta": 0x03B2,
+        "gamma": 0x03B3,
+        "delta": 0x03B4,
+        "epsilon": 0x03B5,
+        "zeta": 0x03B6,
+        "eta": 0x03B7,
+        "theta": 0x03B8,
+        "iota": 0x03B9,
+        "kappa": 0x03BA,
+        "lambda": 0x03BB,
+        "mu": 0x03BC,
+        "nu": 0x03BD,
+        "xi": 0x03BE,
+        "omicron": 0x03BF,
+        "pi": 0x03C0,
+        "rho": 0x03C1,
+        "sigmaf": 0x03C2,
+        "sigma": 0x03C3,
+        "tau": 0x03C4,
+        "upsilon": 0x03C5,
+        "phi": 0x03C6,
+        "chi": 0x03C7,
+        "psi": 0x03C8,
+        "omega": 0x03C9,
+        "thetasym": 0x03D1,
+        "upsih": 0x03D2,
+        "piv": 0x03D6,
+        "ensp": 0x2002,
+        "emsp": 0x2003,
+        "thinsp": 0x2009,
+        "zwnj": 0x200C,
+        "zwj": 0x200D,
+        "lrm": 0x200E,
+        "rlm": 0x200F,
+        "ndash": 0x2013,
+        "mdash": 0x2014,
+        "lsquo": 0x2018,
+        "rsquo": 0x2019,
+        "sbquo": 0x201A,
+        "ldquo": 0x201C,
+        "rdquo": 0x201D,
+        "bdquo": 0x201E,
+        "dagger": 0x2020,
+        "Dagger": 0x2021,
+        "bull": 0x2022,
+        "hellip": 0x2026,
+        "permil": 0x2030,
+        "prime": 0x2032,
+        "Prime": 0x2033,
+        "lsaquo": 0x2039,
+        "rsaquo": 0x203A,
+        "oline": 0x203E,
+        "frasl": 0x2044,
+        "euro": 0x20AC,
+        "image": 0x2111,
+        "weierp": 0x2118,
+        "real": 0x211C,
+        "trade": 0x2122,
+        "alefsym": 0x2135,
+        "larr": 0x2190,
+        "uarr": 0x2191,
+        "rarr": 0x2192,
+        "darr": 0x2193,
+        "harr": 0x2194,
+        "crarr": 0x21B5,
+        "lArr": 0x21D0,
+        "uArr": 0x21D1,
+        "rArr": 0x21D2,
+        "dArr": 0x21D3,
+        "hArr": 0x21D4,
+        "forall": 0x2200,
+        "part": 0x2202,
+        "exist": 0x2203,
+        "empty": 0x2205,
+        "nabla": 0x2207,
+        "isin": 0x2208,
+        "notin": 0x2209,
+        "ni": 0x220B,
+        "prod": 0x220F,
+        "sum": 0x2211,
+        "minus": 0x2212,
+        "lowast": 0x2217,
+        "radic": 0x221A,
+        "prop": 0x221D,
+        "infin": 0x221E,
+        "ang": 0x2220,
+        "and": 0x2227,
+        "or": 0x2228,
+        "cap": 0x2229,
+        "cup": 0x222A,
+        "int": 0x222B,
+        "there4": 0x2234,
+        "sim": 0x223C,
+        "cong": 0x2245,
+        "asymp": 0x2248,
+        "ne": 0x2260,
+        "equiv": 0x2261,
+        "le": 0x2264,
+        "ge": 0x2265,
+        "sub": 0x2282,
+        "sup": 0x2283,
+        "nsub": 0x2284,
+        "sube": 0x2286,
+        "supe": 0x2287,
+        "oplus": 0x2295,
+        "otimes": 0x2297,
+        "perp": 0x22A5,
+        "sdot": 0x22C5,
+        "lceil": 0x2308,
+        "rceil": 0x2309,
+        "lfloor": 0x230A,
+        "rfloor": 0x230B,
+        "lang": 0x2329,
+        "rang": 0x232A,
+        "loz": 0x25CA,
+        "spades": 0x2660,
+        "clubs": 0x2663,
+        "hearts": 0x2665,
+        "diams": 0x2666
+    });
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
     function transformES2017(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
-        var currentSourceFileExternalHelpersModuleName;
+        var currentSourceFile;
         var enabledSubstitutions;
-        var applicableSubstitutions;
         var currentSuperContainer;
         var previousOnEmitNode = context.onEmitNode;
         var previousOnSubstituteNode = context.onSubstituteNode;
         context.onEmitNode = onEmitNode;
         context.onSubstituteNode = onSubstituteNode;
-        var currentScope;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            currentSourceFileExternalHelpersModuleName = node.externalHelpersModuleName;
-            return ts.visitEachChild(node, visitor, context);
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 64) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 128) {
-                return ts.visitEachChild(node, visitor, context);
+            if ((node.transformFlags & 16) === 0) {
+                return node;
             }
-            return node;
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 119:
                     return undefined;
@@ -40849,68 +41131,37 @@ var ts;
                 case 185:
                     return visitArrowFunction(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return node;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitAwaitExpression(node) {
             return ts.setOriginalNode(ts.createYield(undefined, ts.visitNode(node.expression, visitor, ts.isExpression), node), node);
         }
         function visitMethodDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var method = ts.createMethod(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            return ts.updateMethod(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createFunctionDeclaration(undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionDeclaration(node, undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionExpression(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(undefined, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, transformFunctionBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitArrowFunction(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, node.equalsGreaterThanToken, transformConciseBody(node), node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformConciseBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            currentScope = body;
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
             var original = ts.getOriginalNode(node, ts.isFunctionLike);
             var nodeType = original.type;
             var promiseConstructor = languageVersion < 2 ? getPromiseConstructor(nodeType) : undefined;
@@ -40919,52 +41170,49 @@ var ts;
             if (!isArrowFunction) {
                 var statements = [];
                 var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, false, visitor);
-                statements.push(ts.createReturn(ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                ts.addRange(statements, endLexicalEnvironment());
                 var block = ts.createBlock(statements, node.body, true);
                 if (languageVersion >= 2) {
                     if (resolver.getNodeCheckFlags(node) & 4096) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 8);
+                        ts.addEmitHelper(block, advancedAsyncSuperHelper);
                     }
                     else if (resolver.getNodeCheckFlags(node) & 2048) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 4);
+                        ts.addEmitHelper(block, asyncSuperHelper);
                     }
                 }
                 return block;
             }
             else {
-                return ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformConciseBodyWorker(node.body, true));
+                var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
+                }
+                return expression;
             }
         }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
+        function transformFunctionBodyWorker(body, start) {
             if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
+                return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
             }
             else {
                 startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
+                var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
                 var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
+                return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
             }
         }
         function getPromiseConstructor(type) {
-            if (type) {
-                var typeName = ts.getEntityNameFromTypeNode(type);
-                if (typeName && ts.isEntityName(typeName)) {
-                    var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
-                    if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
-                        || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
-                        return typeName;
-                    }
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
                 }
             }
             return undefined;
@@ -41038,14 +41286,15 @@ var ts;
                 || kind === 152;
         }
         function onEmitNode(emitContext, node, emitCallback) {
-            var savedApplicableSubstitutions = applicableSubstitutions;
-            var savedCurrentSuperContainer = currentSuperContainer;
             if (enabledSubstitutions & 1 && isSuperContainer(node)) {
+                var savedCurrentSuperContainer = currentSuperContainer;
                 currentSuperContainer = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSuperContainer = savedCurrentSuperContainer;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
             }
-            previousOnEmitNode(emitContext, node, emitCallback);
-            applicableSubstitutions = savedApplicableSubstitutions;
-            currentSuperContainer = savedCurrentSuperContainer;
         }
         function onSubstituteNode(emitContext, node) {
             node = previousOnSubstituteNode(emitContext, node);
@@ -41068,6 +41317,33 @@ var ts;
         }
     }
     ts.transformES2017 = transformES2017;
+    function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(undefined, ts.createToken(38), undefined, undefined, [], undefined, body);
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072;
+        return ts.createCall(ts.getHelperName("__awaiter"), undefined, [
+            ts.createThis(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    var awaiterHelper = {
+        name: "typescript:awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments)).next());\n                });\n            };"
+    };
+    var asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: "\n            const _super = name => super[name];"
+    };
+    var advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -41081,55 +41357,52 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitor(node) {
-            if (node.transformFlags & 256) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 512) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
+            if ((node.transformFlags & 32) === 0) {
                 return node;
             }
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 192:
                     return visitBinaryExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
                     return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitBinaryExpression(node) {
+            switch (node.operatorToken.kind) {
+                case 61:
+                    return visitExponentiationAssignmentExpression(node);
+                case 39:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
             var left = ts.visitNode(node.left, visitor, ts.isExpression);
             var right = ts.visitNode(node.right, visitor, ts.isExpression);
-            if (node.operatorToken.kind === 61) {
-                var target = void 0;
-                var value = void 0;
-                if (ts.isElementAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
-                    value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
-                }
-                else if (ts.isPropertyAccessExpression(left)) {
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
-                    value = ts.createPropertyAccess(expressionTemp, left.name, left);
-                }
-                else {
-                    target = left;
-                    value = left;
-                }
-                return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+            if (ts.isElementAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, left.argumentExpression), left);
+                value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, left);
             }
-            else if (node.operatorToken.kind === 39) {
-                return ts.createMathPow(left, right, node);
+            else if (ts.isPropertyAccessExpression(left)) {
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, left.expression), left.name, left);
+                value = ts.createPropertyAccess(expressionTemp, left.name, left);
             }
             else {
-                ts.Debug.failBadSyntaxKind(node);
-                return ts.visitEachChild(node, visitor, context);
+                target = left;
+                value = left;
             }
+            return ts.createAssignment(target, ts.createMathPow(value, right, node), node);
+        }
+        function visitExponentiationExpression(node) {
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, node);
         }
     }
     ts.transformES2016 = transformES2016;
@@ -41137,7 +41410,7 @@ var ts;
 var ts;
 (function (ts) {
     function transformES2015(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var previousOnSubstituteNode = context.onSubstituteNode;
         var previousOnEmitNode = context.onEmitNode;
@@ -41163,7 +41436,11 @@ var ts;
             }
             currentSourceFile = node;
             currentText = node.text;
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            return visited;
         }
         function visitor(node) {
             return saveStateAndInvoke(node, dispatcher);
@@ -41202,6 +41479,38 @@ var ts;
             currentNode = savedCurrentNode;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            if (currentNode) {
+                if (ts.isBlockScope(currentNode, currentParent)) {
+                    enclosingBlockScopeContainer = currentNode;
+                    enclosingBlockScopeContainerParent = currentParent;
+                }
+                if (ts.isFunctionLike(currentNode)) {
+                    enclosingFunction = currentNode;
+                    if (currentNode.kind !== 185) {
+                        enclosingNonArrowFunction = currentNode;
+                        if (!(ts.getEmitFlags(currentNode) & 131072)) {
+                            enclosingNonAsyncFunctionBody = currentNode;
+                        }
+                    }
+                }
+                switch (currentNode.kind) {
+                    case 205:
+                        enclosingVariableStatement = currentNode;
+                        break;
+                    case 224:
+                    case 223:
+                    case 174:
+                    case 172:
+                    case 173:
+                        break;
+                    default:
+                        enclosingVariableStatement = undefined;
+                }
+            }
+            currentParent = currentNode;
+            currentNode = node;
+        }
         function returnCapturedThis(node) {
             return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
         }
@@ -41209,7 +41518,7 @@ var ts;
             return isInConstructorWithCapturedSuper && node.kind === 216 && !node.expression;
         }
         function shouldCheckNode(node) {
-            return (node.transformFlags & 1024) !== 0 ||
+            return (node.transformFlags & 64) !== 0 ||
                 node.kind === 219 ||
                 (ts.isIterationStatement(node, false) && shouldConvertIterationStatementBody(node));
         }
@@ -41220,7 +41529,7 @@ var ts;
             else if (shouldCheckNode(node)) {
                 return visitJavaScript(node);
             }
-            else if (node.transformFlags & 2048 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
+            else if (node.transformFlags & 128 || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -41320,14 +41629,14 @@ var ts;
                     return visitTemplateExpression(node);
                 case 195:
                     return visitYieldExpression(node);
+                case 196:
+                    return visitSpreadElement(node);
                 case 96:
                     return visitSuperKeyword();
                 case 195:
                     return ts.visitEachChild(node, visitor, context);
                 case 149:
                     return visitMethodDeclaration(node);
-                case 261:
-                    return visitSourceFileNode(node);
                 case 205:
                     return visitVariableStatement(node);
                 default:
@@ -41335,37 +41644,14 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            if (currentNode) {
-                if (ts.isBlockScope(currentNode, currentParent)) {
-                    enclosingBlockScopeContainer = currentNode;
-                    enclosingBlockScopeContainerParent = currentParent;
-                }
-                if (ts.isFunctionLike(currentNode)) {
-                    enclosingFunction = currentNode;
-                    if (currentNode.kind !== 185) {
-                        enclosingNonArrowFunction = currentNode;
-                        if (!(ts.getEmitFlags(currentNode) & 2097152)) {
-                            enclosingNonAsyncFunctionBody = currentNode;
-                        }
-                    }
-                }
-                switch (currentNode.kind) {
-                    case 205:
-                        enclosingVariableStatement = currentNode;
-                        break;
-                    case 224:
-                    case 223:
-                    case 174:
-                    case 172:
-                    case 173:
-                        break;
-                    default:
-                        enclosingVariableStatement = undefined;
-                }
-            }
-            currentParent = currentNode;
-            currentNode = node;
+        function visitSourceFile(node) {
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addPrologueDirectives(statements, node.statements, false, visitor);
+            addCaptureThisForNodeIfNeeded(statements, node);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            ts.addRange(statements, endLexicalEnvironment());
+            return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
         }
         function visitSwitchStatement(node) {
             ts.Debug.assert(convertedLoopState !== undefined);
@@ -41467,9 +41753,9 @@ var ts;
                 statements.push(exportStatement);
             }
             var emitFlags = ts.getEmitFlags(node);
-            if ((emitFlags & 33554432) === 0) {
+            if ((emitFlags & 2097152) === 0) {
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(statement, emitFlags | 33554432);
+                ts.setEmitFlags(statement, emitFlags | 2097152);
             }
             return ts.singleOrMany(statements);
         }
@@ -41482,15 +41768,15 @@ var ts;
             }
             var extendsClauseElement = ts.getClassExtendsHeritageClauseElement(node);
             var classFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, extendsClauseElement ? [ts.createParameter(undefined, undefined, undefined, "_super")] : [], undefined, transformClassBody(node, extendsClauseElement));
-            if (ts.getEmitFlags(node) & 524288) {
-                ts.setEmitFlags(classFunction, 524288);
+            if (ts.getEmitFlags(node) & 32768) {
+                ts.setEmitFlags(classFunction, 32768);
             }
             var inner = ts.createPartiallyEmittedExpression(classFunction);
             inner.end = node.end;
-            ts.setEmitFlags(inner, 49152);
+            ts.setEmitFlags(inner, 1536);
             var outer = ts.createPartiallyEmittedExpression(inner);
             outer.end = ts.skipTrivia(currentText, node.pos);
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             return ts.createParen(ts.createCall(outer, undefined, extendsClauseElement
                 ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
                 : []));
@@ -41505,19 +41791,19 @@ var ts;
             var localName = ts.getLocalName(node);
             var outer = ts.createPartiallyEmittedExpression(localName);
             outer.end = closingBraceLocation.end;
-            ts.setEmitFlags(outer, 49152);
+            ts.setEmitFlags(outer, 1536);
             var statement = ts.createReturn(outer);
             statement.pos = closingBraceLocation.pos;
-            ts.setEmitFlags(statement, 49152 | 12288);
+            ts.setEmitFlags(statement, 1536 | 384);
             statements.push(statement);
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, node.members), undefined, true);
-            ts.setEmitFlags(block, 49152);
+            ts.setEmitFlags(block, 1536);
             return block;
         }
         function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
             if (extendsClauseElement) {
-                statements.push(ts.createStatement(ts.createExtendsHelper(currentSourceFile.externalHelpersModuleName, ts.getLocalName(node)), extendsClauseElement));
+                statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), extendsClauseElement));
             }
         }
         function addConstructor(statements, node, extendsClauseElement) {
@@ -41525,29 +41811,27 @@ var ts;
             var hasSynthesizedSuper = hasSynthesizedDefaultSuperCall(constructor, extendsClauseElement !== undefined);
             var constructorFunction = ts.createFunctionDeclaration(undefined, undefined, undefined, ts.getDeclarationName(node), undefined, transformConstructorParameters(constructor, hasSynthesizedSuper), undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), constructor || node);
             if (extendsClauseElement) {
-                ts.setEmitFlags(constructorFunction, 256);
+                ts.setEmitFlags(constructorFunction, 8);
             }
             statements.push(constructorFunction);
         }
         function transformConstructorParameters(constructor, hasSynthesizedSuper) {
-            if (constructor && !hasSynthesizedSuper) {
-                return ts.visitNodes(constructor.parameters, visitor, ts.isParameter);
-            }
-            return [];
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
+                || [];
         }
         function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
             var statements = [];
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = -1;
             if (hasSynthesizedSuper) {
-                statementOffset = 1;
+                statementOffset = 0;
             }
             else if (constructor) {
                 statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, false, visitor);
             }
             if (constructor) {
-                ts.addDefaultValueAssignmentsIfNeeded(statements, constructor, visitor, false);
-                ts.addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+                addDefaultValueAssignmentsIfNeeded(statements, constructor);
+                addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
                 ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
             }
             var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, !!extendsClauseElement, hasSynthesizedSuper, statementOffset);
@@ -41569,7 +41853,7 @@ var ts;
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, constructor ? constructor.body.statements : node.members), constructor ? constructor.body : node, true);
             if (!constructor) {
-                ts.setEmitFlags(block, 49152);
+                ts.setEmitFlags(block, 1536);
             }
             return block;
         }
@@ -41595,7 +41879,7 @@ var ts;
         function declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, ctor, hasExtendsClause, hasSynthesizedSuper, statementOffset) {
             if (!hasExtendsClause) {
                 if (ctor) {
-                    ts.addCaptureThisForNodeIfNeeded(statements, ctor, enableSubstitutionsForCapturedThis);
+                    addCaptureThisForNodeIfNeeded(statements, ctor);
                 }
                 return 0;
             }
@@ -41604,7 +41888,7 @@ var ts;
                 return 2;
             }
             if (hasSynthesizedSuper) {
-                ts.captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
+                captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
                 enableSubstitutionsForCapturedThis();
                 return 1;
             }
@@ -41624,11 +41908,11 @@ var ts;
                     || superCallExpression.left.kind !== 179) {
                     ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
                 }
-                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 49152)));
+                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536)));
                 statements.push(returnStatement);
                 return 2;
             }
-            ts.captureThisForNode(statements, ctor, superCallExpression, enableSubstitutionsForCapturedThis, firstStatement);
+            captureThisForNode(statements, ctor, superCallExpression, firstStatement);
             if (superCallExpression) {
                 return 1;
             }
@@ -41636,7 +41920,7 @@ var ts;
         }
         function createDefaultSuperCallOrThis() {
             var actualThis = ts.createThis();
-            ts.setEmitFlags(actualThis, 128);
+            ts.setEmitFlags(actualThis, 4);
             var superCall = ts.createFunctionApply(ts.createIdentifier("_super"), actualThis, ts.createIdentifier("arguments"));
             return ts.createLogicalOr(superCall, actualThis);
         }
@@ -41654,6 +41938,86 @@ var ts;
                 return node;
             }
         }
+        function shouldAddDefaultValueAssignments(node) {
+            return (node.transformFlags & 131072) !== 0;
+        }
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!shouldAddDefaultValueAssignments(node)) {
+                return;
+            }
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name_37 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name_37)) {
+                    addDefaultValueAssignmentForBindingPattern(statements, parameter, name_37, initializer);
+                }
+                else if (initializer) {
+                    addDefaultValueAssignmentForInitializer(statements, parameter, name_37, initializer);
+                }
+            }
+        }
+        function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            var temp = ts.getGeneratedNameForNode(parameter);
+            if (name.elements.length > 0) {
+                statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0, temp))), 524288));
+            }
+            else if (initializer) {
+                statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288));
+            }
+        }
+        function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
+                ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48), ts.setEmitFlags(initializer, 48 | ts.getEmitFlags(initializer)), parameter))
+            ], parameter), 1 | 32 | 384), undefined, parameter);
+            statement.startsOnNewLine = true;
+            ts.setEmitFlags(statement, 384 | 32 | 524288);
+            statements.push(statement);
+        }
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return node && node.dotDotDotToken && node.name.kind === 70 && !inConstructorWithSynthesizedSuper;
+        }
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return;
+            }
+            var declarationName = ts.getMutableClone(parameter.name);
+            ts.setEmitFlags(declarationName, 48);
+            var expressionName = ts.getSynthesizedClone(parameter.name);
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            statements.push(ts.setEmitFlags(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, undefined, ts.createArrayLiteral([]))
+            ]), parameter), 524288));
+            var forStatement = ts.createFor(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, undefined, ts.createLiteral(restIndex))
+            ], parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), parameter), ts.createPostfixIncrement(temp, parameter), ts.createBlock([
+                ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 524288);
+            ts.startOnNewLine(forStatement);
+            statements.push(forStatement);
+        }
+        function addCaptureThisForNodeIfNeeded(statements, node) {
+            if (node.transformFlags & 32768 && node.kind !== 185) {
+                captureThisForNode(statements, node, ts.createThis());
+            }
+        }
+        function captureThisForNode(statements, node, initializer, originalStatement) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("_this", undefined, initializer)
+            ]), originalStatement);
+            ts.setEmitFlags(captureThisStatement, 1536 | 524288);
+            ts.setSourceMapRange(captureThisStatement, node);
+            statements.push(captureThisStatement);
+        }
         function addClassMembers(statements, node) {
             for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
                 var member = _a[_i];
@@ -41685,33 +42049,34 @@ var ts;
         function transformClassMethodDeclarationToStatement(receiver, member) {
             var commentRange = ts.getCommentRange(member);
             var sourceMapRange = ts.getSourceMapRange(member);
-            var func = transformFunctionLikeToExpression(member, member, undefined);
-            ts.setEmitFlags(func, 49152);
-            ts.setSourceMapRange(func, sourceMapRange);
-            var statement = ts.createStatement(ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name), func), member);
+            var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), member.name);
+            var memberFunction = transformFunctionLikeToExpression(member, member, undefined);
+            ts.setEmitFlags(memberFunction, 1536);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), member);
             ts.setOriginalNode(statement, member);
             ts.setCommentRange(statement, commentRange);
-            ts.setEmitFlags(statement, 1536);
+            ts.setEmitFlags(statement, 48);
             return statement;
         }
         function transformAccessorsToStatement(receiver, accessors) {
             var statement = ts.createStatement(transformAccessorsToExpression(receiver, accessors, false), ts.getSourceMapRange(accessors.firstAccessor));
-            ts.setEmitFlags(statement, 49152);
+            ts.setEmitFlags(statement, 1536);
             return statement;
         }
         function transformAccessorsToExpression(receiver, _a, startsOnNewLine) {
             var firstAccessor = _a.firstAccessor, getAccessor = _a.getAccessor, setAccessor = _a.setAccessor;
             var target = ts.getMutableClone(receiver);
-            ts.setEmitFlags(target, 49152 | 1024);
+            ts.setEmitFlags(target, 1536 | 32);
             ts.setSourceMapRange(target, firstAccessor.name);
             var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
-            ts.setEmitFlags(propertyName, 49152 | 512);
+            ts.setEmitFlags(propertyName, 1536 | 16);
             ts.setSourceMapRange(propertyName, firstAccessor.name);
             var properties = [];
             if (getAccessor) {
                 var getterFunction = transformFunctionLikeToExpression(getAccessor, undefined, undefined);
                 ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
-                ts.setEmitFlags(getterFunction, 16384);
+                ts.setEmitFlags(getterFunction, 512);
                 var getter = ts.createPropertyAssignment("get", getterFunction);
                 ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
                 properties.push(getter);
@@ -41719,7 +42084,7 @@ var ts;
             if (setAccessor) {
                 var setterFunction = transformFunctionLikeToExpression(setAccessor, undefined, undefined);
                 ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
-                ts.setEmitFlags(setterFunction, 16384);
+                ts.setEmitFlags(setterFunction, 512);
                 var setter = ts.createPropertyAssignment("set", setterFunction);
                 ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
                 properties.push(setter);
@@ -41736,28 +42101,91 @@ var ts;
             return call;
         }
         function visitArrowFunction(node) {
-            if (node.transformFlags & 262144) {
+            if (node.transformFlags & 16384) {
                 enableSubstitutionsForCapturedThis();
             }
-            var func = transformFunctionLikeToExpression(node, node, undefined);
-            ts.setEmitFlags(func, 256);
+            var func = ts.createFunctionExpression(undefined, undefined, undefined, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformFunctionBody(node), node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8);
             return func;
         }
         function visitFunctionExpression(node) {
-            return transformFunctionLikeToExpression(node, node, node.name);
+            return ts.updateFunctionExpression(node, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function visitFunctionDeclaration(node) {
-            return ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, node.asteriskToken, node.name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis), node), node);
+            return ts.updateFunctionDeclaration(node, undefined, node.modifiers, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, node.transformFlags & 64
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformFunctionLikeToExpression(node, location, name) {
             var savedContainingNonArrowFunction = enclosingNonArrowFunction;
             if (node.kind !== 185) {
                 enclosingNonArrowFunction = node;
             }
-            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), undefined, saveStateAndInvoke(node, function (node) { return ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis); }), location), node);
+            var expression = ts.setOriginalNode(ts.createFunctionExpression(undefined, node.asteriskToken, name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, saveStateAndInvoke(node, transformFunctionBody), location), node);
             enclosingNonArrowFunction = savedContainingNonArrowFunction;
             return expression;
         }
+        function transformFunctionBody(node) {
+            var multiLine = false;
+            var singleLine = false;
+            var statementsLocation;
+            var closeBraceLocation;
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
+            }
+            addCaptureThisForNodeIfNeeded(statements, node);
+            addDefaultValueAssignmentsIfNeeded(statements, node);
+            addRestParameterIfNeeded(statements, node, false);
+            if (!multiLine && statements.length > 0) {
+                multiLine = true;
+            }
+            if (ts.isBlock(body)) {
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 185);
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression, body);
+                ts.setEmitFlags(returnStatement, 384 | 32 | 1024);
+                statements.push(returnStatement);
+                closeBraceLocation = body;
+            }
+            var lexicalEnvironment = context.endLexicalEnvironment();
+            ts.addRange(statements, lexicalEnvironment);
+            if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
+                multiLine = true;
+            }
+            var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 17, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
         function visitExpressionStatement(node) {
             switch (node.expression.kind) {
                 case 183:
@@ -41768,19 +42196,20 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitParenthesizedExpression(node, needsDestructuringValue) {
-            if (needsDestructuringValue) {
+            if (!needsDestructuringValue) {
                 switch (node.expression.kind) {
                     case 183:
-                        return ts.createParen(visitParenthesizedExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, false));
                     case 192:
-                        return ts.createParen(visitBinaryExpression(node.expression, true), node);
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, false));
                 }
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitBinaryExpression(node, needsDestructuringValue) {
-            ts.Debug.assert(ts.isDestructuringAssignment(node));
-            return ts.flattenDestructuringAssignment(context, node, needsDestructuringValue, hoistVariableDeclaration, visitor);
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0, needsDestructuringValue);
+            }
         }
         function visitVariableStatement(node) {
             if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3) == 0) {
@@ -41791,7 +42220,7 @@ var ts;
                     if (decl.initializer) {
                         var assignment = void 0;
                         if (ts.isBindingPattern(decl.name)) {
-                            assignment = ts.flattenVariableDestructuringToExpression(decl, hoistVariableDeclaration, undefined, visitor);
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0);
                         }
                         else {
                             assignment = ts.createBinary(decl.name, 57, ts.visitNode(decl.initializer, visitor, ts.isExpression));
@@ -41818,7 +42247,7 @@ var ts;
             var declarationList = ts.createVariableDeclarationList(declarations, node);
             ts.setOriginalNode(declarationList, node);
             ts.setCommentRange(declarationList, node);
-            if (node.transformFlags & 67108864
+            if (node.transformFlags & 8388608
                 && (ts.isBindingPattern(node.declarations[0].name)
                     || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
                 var firstDeclaration = ts.firstOrUndefined(declarations);
@@ -41851,17 +42280,17 @@ var ts;
                 return visitVariableDeclaration(node);
             }
             if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
-                var clone_5 = ts.getMutableClone(node);
-                clone_5.initializer = ts.createVoidZero();
-                return clone_5;
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
             }
             return ts.visitEachChild(node, visitor, context);
         }
         function visitVariableDeclaration(node) {
             if (ts.isBindingPattern(node.name)) {
-                var recordTempVariablesInLine = !enclosingVariableStatement
-                    || !ts.hasModifier(enclosingVariableStatement, 1);
-                return ts.flattenVariableDestructuring(node, undefined, visitor, recordTempVariablesInLine ? undefined : hoistVariableDeclaration);
+                var hoistTempVariables = enclosingVariableStatement
+                    && ts.hasModifier(enclosingVariableStatement, 1);
+                return ts.flattenDestructuringBinding(node, visitor, context, 0, undefined, hoistTempVariables);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -41900,7 +42329,69 @@ var ts;
             return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
         }
         function convertForOfToFor(node, convertedLoopBodyStatements) {
-            return ts.convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, false);
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var initializer = node.initializer;
+            var statements = [];
+            var counter = ts.createLoopVariable();
+            var rhsReference = expression.kind === 70
+                ? ts.createUniqueName(expression.text)
+                : ts.createTempVariable(undefined);
+            var elementAccess = ts.createElementAccess(rhsReference, counter);
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (initializer.flags & 3) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0, elementAccess);
+                    var declarationList = ts.createVariableDeclarationList(declarations, initializer);
+                    ts.setOriginalNode(declarationList, initializer);
+                    var firstDeclaration = declarations[0];
+                    var lastDeclaration = ts.lastOrUndefined(declarations);
+                    ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
+                    statements.push(ts.createVariableStatement(undefined, declarationList));
+                }
+                else {
+                    statements.push(ts.createVariableStatement(undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(undefined), undefined, ts.createElementAccess(rhsReference, counter))
+                    ], ts.moveRangePos(initializer, -1)), initializer), ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                var assignment = ts.createAssignment(initializer, elementAccess);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0)));
+                }
+                else {
+                    assignment.end = initializer.end;
+                    statements.push(ts.createStatement(assignment, ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            var bodyLocation;
+            var statementsLocation;
+            if (convertedLoopBodyStatements) {
+                ts.addRange(statements, convertedLoopBodyStatements);
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                if (ts.isBlock(statement)) {
+                    ts.addRange(statements, statement.statements);
+                    bodyLocation = statement;
+                    statementsLocation = statement.statements;
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+            ts.setEmitFlags(expression, 48 | ts.getEmitFlags(expression));
+            var body = ts.createBlock(ts.createNodeArray(statements, statementsLocation), bodyLocation);
+            ts.setEmitFlags(body, 48 | 384);
+            var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(counter, undefined, ts.createLiteral(0), ts.moveRangePos(node.expression, -1)),
+                ts.createVariableDeclaration(rhsReference, undefined, expression, node.expression)
+            ], node.expression), 1048576), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), node.expression), ts.createPostfixIncrement(counter, node.expression), body, node);
+            ts.setEmitFlags(forStatement, 256);
+            return forStatement;
         }
         function visitObjectLiteralExpression(node) {
             var properties = node.properties;
@@ -41908,7 +42399,7 @@ var ts;
             var numInitialProperties = numProperties;
             for (var i = 0; i < numProperties; i++) {
                 var property = properties[i];
-                if (property.transformFlags & 134217728
+                if (property.transformFlags & 16777216
                     || property.name.kind === 142) {
                     numInitialProperties = i;
                     break;
@@ -41917,7 +42408,7 @@ var ts;
             ts.Debug.assert(numInitialProperties !== numProperties);
             var temp = ts.createTempVariable(hoistVariableDeclaration);
             var expressions = [];
-            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 524288));
+            var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), undefined, node.multiLine), 32768));
             if (node.multiLine) {
                 assignment.startsOnNewLine = true;
             }
@@ -41998,26 +42489,26 @@ var ts;
             var currentState = convertedLoopState;
             convertedLoopState = outerConvertedLoopState;
             if (loopOutParameters.length) {
-                var statements_3 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
-                copyOutParameters(loopOutParameters, 1, statements_3);
-                loopBody = ts.createBlock(statements_3, undefined, true);
+                var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
+                copyOutParameters(loopOutParameters, 1, statements_4);
+                loopBody = ts.createBlock(statements_4, undefined, true);
             }
             if (!ts.isBlock(loopBody)) {
                 loopBody = ts.createBlock([loopBody], undefined, true);
             }
             var isAsyncBlockContainingAwait = enclosingNonArrowFunction
-                && (ts.getEmitFlags(enclosingNonArrowFunction) & 2097152) !== 0
-                && (node.statement.transformFlags & 134217728) !== 0;
+                && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072) !== 0
+                && (node.statement.transformFlags & 16777216) !== 0;
             var loopBodyFlags = 0;
             if (currentState.containsLexicalThis) {
-                loopBodyFlags |= 256;
+                loopBodyFlags |= 8;
             }
             if (isAsyncBlockContainingAwait) {
-                loopBodyFlags |= 2097152;
+                loopBodyFlags |= 131072;
             }
             var convertedLoopVariable = ts.createVariableStatement(undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
                 ts.createVariableDeclaration(functionName, undefined, ts.setEmitFlags(ts.createFunctionExpression(undefined, isAsyncBlockContainingAwait ? ts.createToken(38) : undefined, undefined, undefined, loopParameters, undefined, loopBody), loopBodyFlags))
-            ]), 16777216));
+            ]), 1048576));
             var statements = [convertedLoopVariable];
             var extraVariableDeclarations;
             if (currentState.argumentsName) {
@@ -42234,7 +42725,7 @@ var ts;
             ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
             var temp = ts.createTempVariable(undefined);
             var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
-            var vars = ts.flattenVariableDestructuring(node.variableDeclaration, temp, visitor);
+            var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0, temp);
             var list = ts.createVariableDeclarationList(vars, node.variableDeclaration, node.variableDeclaration.flags);
             var destructure = ts.createVariableStatement(undefined, list);
             return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
@@ -42246,7 +42737,7 @@ var ts;
         function visitMethodDeclaration(node) {
             ts.Debug.assert(!ts.isComputedPropertyName(node.name));
             var functionExpression = transformFunctionLikeToExpression(node, ts.moveRangePos(node, -1), undefined);
-            ts.setEmitFlags(functionExpression, 16384 | ts.getEmitFlags(functionExpression));
+            ts.setEmitFlags(functionExpression, 512 | ts.getEmitFlags(functionExpression));
             return ts.createPropertyAssignment(node.name, functionExpression, node);
         }
         function visitShorthandPropertyAssignment(node) {
@@ -42267,10 +42758,10 @@ var ts;
         function visitCallExpressionWithPotentialCapturedThisAssignment(node, assignToCapturedThis) {
             var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             if (node.expression.kind === 96) {
-                ts.setEmitFlags(thisArg, 128);
+                ts.setEmitFlags(thisArg, 4);
             }
             var resultingCall;
-            if (node.transformFlags & 8388608) {
+            if (node.transformFlags & 524288) {
                 resultingCall = ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), ts.visitNode(thisArg, visitor, ts.isExpression), transformAndSpreadElements(node.arguments, false, false, false));
             }
             else {
@@ -42278,7 +42769,7 @@ var ts;
             }
             if (node.expression.kind === 96) {
                 var actualThis = ts.createThis();
-                ts.setEmitFlags(actualThis, 128);
+                ts.setEmitFlags(actualThis, 4);
                 var initializer = ts.createLogicalOr(resultingCall, actualThis);
                 return assignToCapturedThis
                     ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
@@ -42287,7 +42778,7 @@ var ts;
             return resultingCall;
         }
         function visitNewExpression(node) {
-            ts.Debug.assert((node.transformFlags & 8388608) !== 0);
+            ts.Debug.assert((node.transformFlags & 524288) !== 0);
             var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             return ts.createNew(ts.createFunctionApply(ts.visitNode(target, visitor, ts.isExpression), thisArg, transformAndSpreadElements(ts.createNodeArray([ts.createVoidZero()].concat(node.arguments)), false, false, false)), undefined, []);
         }
@@ -42315,6 +42806,9 @@ var ts;
         function visitSpanOfNonSpreads(chunk, multiLine, hasTrailingComma) {
             return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, undefined, hasTrailingComma), visitor, ts.isExpression), undefined, multiLine);
         }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
         function visitExpressionOfSpread(node) {
             return ts.visitNode(node.expression, visitor, ts.isExpression);
         }
@@ -42392,18 +42886,6 @@ var ts;
                 ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
                 : ts.createIdentifier("_super");
         }
-        function visitSourceFileNode(node) {
-            var _a = ts.span(node.statements, ts.isPrologueDirective), prologue = _a[0], remaining = _a[1];
-            var statements = [];
-            startLexicalEnvironment();
-            ts.addRange(statements, prologue);
-            ts.addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-            ts.addRange(statements, ts.visitNodes(ts.createNodeArray(remaining), visitor, ts.isStatement));
-            ts.addRange(statements, endLexicalEnvironment());
-            var clone = ts.getMutableClone(node);
-            clone.statements = ts.createNodeArray(statements, node.statements);
-            return clone;
-        }
         function onEmitNode(emitContext, node, emitCallback) {
             var savedEnclosingFunction = enclosingFunction;
             if (enabledSubstitutions & 1 && ts.isFunctionLike(node)) {
@@ -42483,7 +42965,7 @@ var ts;
         function substituteThisKeyword(node) {
             if (enabledSubstitutions & 1
                 && enclosingFunction
-                && ts.getEmitFlags(enclosingFunction) & 256) {
+                && ts.getEmitFlags(enclosingFunction) & 8) {
                 return ts.createIdentifier("_this", node);
             }
             return node;
@@ -42496,8 +42978,7 @@ var ts;
             if (!constructor || !hasExtendsClause) {
                 return false;
             }
-            var parameter = ts.singleOrUndefined(constructor.parameters);
-            if (!parameter || !ts.nodeIsSynthesized(parameter) || !parameter.dotDotDotToken) {
+            if (ts.some(constructor.parameters)) {
                 return false;
             }
             var statement = ts.firstOrUndefined(constructor.body.statements);
@@ -42517,10 +42998,23 @@ var ts;
                 return false;
             }
             var expression = callArgument.expression;
-            return ts.isIdentifier(expression) && expression === parameter.name;
+            return ts.isIdentifier(expression) && expression.text === "arguments";
         }
     }
     ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(extendsHelper);
+        return ts.createCall(ts.getHelperName("__extends"), undefined, [
+            name,
+            ts.createIdentifier("_super")
+        ]);
+    }
+    var extendsHelper = {
+        name: "typescript:extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
+    };
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -42532,7 +43026,7 @@ var ts;
         _a[7] = "endfinally",
         _a));
     function transformGenerators(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var resolver = context.getEmitResolver();
@@ -42566,15 +43060,15 @@ var ts;
         var withBlockStack;
         return transformSourceFile;
         function transformSourceFile(node) {
-            if (ts.isDeclarationFile(node)) {
+            if (ts.isDeclarationFile(node)
+                || (node.transformFlags & 512) === 0) {
                 return node;
             }
-            if (node.transformFlags & 8192) {
-                currentSourceFile = node;
-                node = ts.visitEachChild(node, visitor, context);
-                currentSourceFile = undefined;
-            }
-            return node;
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
             var transformFlags = node.transformFlags;
@@ -42584,10 +43078,10 @@ var ts;
             else if (inGeneratorFunctionBody) {
                 return visitJavaScriptInGeneratorFunctionBody(node);
             }
-            else if (transformFlags & 4096) {
+            else if (transformFlags & 256) {
                 return visitGenerator(node);
             }
-            else if (transformFlags & 8192) {
+            else if (transformFlags & 512) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -42630,10 +43124,10 @@ var ts;
                 case 216:
                     return visitReturnStatement(node);
                 default:
-                    if (node.transformFlags & 134217728) {
+                    if (node.transformFlags & 16777216) {
                         return visitJavaScriptContainingYield(node);
                     }
-                    else if (node.transformFlags & (8192 | 268435456)) {
+                    else if (node.transformFlags & (512 | 33554432)) {
                         return ts.visitEachChild(node, visitor, context);
                     }
                     else {
@@ -42675,8 +43169,8 @@ var ts;
             }
         }
         function visitFunctionDeclaration(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionDeclaration(undefined, node.modifiers, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -42696,8 +43190,8 @@ var ts;
             }
         }
         function visitFunctionExpression(node) {
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152) {
-                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, node.parameters, undefined, transformGeneratorFunctionBody(node.body), node), node);
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072) {
+                node = ts.setOriginalNode(ts.createFunctionExpression(undefined, undefined, node.name, undefined, ts.visitParameterList(node.parameters, visitor, context), undefined, transformGeneratorFunctionBody(node.body), node), node);
             }
             else {
                 var savedInGeneratorFunctionBody = inGeneratorFunctionBody;
@@ -42748,7 +43242,7 @@ var ts;
             operationArguments = undefined;
             operationLocations = undefined;
             state = ts.createTempVariable(undefined);
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = ts.addPrologueDirectives(statements, body.statements, false, visitor);
             transformAndEmitStatements(body.statements, statementOffset);
             var buildResult = build();
@@ -42770,12 +43264,12 @@ var ts;
             return ts.createBlock(statements, body, body.multiLine);
         }
         function visitVariableStatement(node) {
-            if (node.transformFlags & 134217728) {
+            if (node.transformFlags & 16777216) {
                 transformAndEmitVariableDeclarationList(node.declarationList);
                 return undefined;
             }
             else {
-                if (ts.getEmitFlags(node) & 8388608) {
+                if (ts.getEmitFlags(node) & 524288) {
                     return node;
                 }
                 for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
@@ -42852,10 +43346,10 @@ var ts;
                 else if (node.operatorToken.kind === 25) {
                     return visitCommaExpression(node);
                 }
-                var clone_6 = ts.getMutableClone(node);
-                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
-                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
-                return clone_6;
+                var clone_4 = ts.getMutableClone(node);
+                clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_4;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -42920,26 +43414,30 @@ var ts;
             return createGeneratorResume();
         }
         function visitArrayLiteralExpression(node) {
-            return visitElements(node.elements, node.multiLine);
+            return visitElements(node.elements, undefined, undefined, node.multiLine);
         }
-        function visitElements(elements, _multiLine) {
+        function visitElements(elements, leadingElement, location, multiLine) {
             var numInitialElements = countInitialNodesWithoutYield(elements);
             var temp = declareLocal();
             var hasAssignedTemp = false;
             if (numInitialElements > 0) {
-                emitAssignment(temp, ts.createArrayLiteral(ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements)));
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? [leadingElement].concat(initialElements) : initialElements));
+                leadingElement = undefined;
                 hasAssignedTemp = true;
             }
             var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
             return hasAssignedTemp
-                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                : ts.createArrayLiteral(expressions);
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
             function reduceElement(expressions, element) {
                 if (containsYield(element) && expressions.length > 0) {
                     emitAssignment(temp, hasAssignedTemp
-                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                        : ts.createArrayLiteral(expressions));
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, undefined, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, undefined, multiLine));
                     hasAssignedTemp = true;
+                    leadingElement = undefined;
                     expressions = [];
                 }
                 expressions.push(ts.visitNode(element, visitor, ts.isExpression));
@@ -42973,10 +43471,10 @@ var ts;
         }
         function visitElementAccessExpression(node) {
             if (containsYield(node.argumentExpression)) {
-                var clone_7 = ts.getMutableClone(node);
-                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
-                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
-                return clone_7;
+                var clone_5 = ts.getMutableClone(node);
+                clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_5;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -42990,7 +43488,7 @@ var ts;
         function visitNewExpression(node) {
             if (ts.forEach(node.arguments, containsYield)) {
                 var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
-                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments)), undefined, [], node), node);
+                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, ts.createVoidZero())), undefined, [], node), node);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -43432,7 +43930,7 @@ var ts;
             }
         }
         function containsYield(node) {
-            return node && (node.transformFlags & 134217728) !== 0;
+            return node && (node.transformFlags & 16777216) !== 0;
         }
         function countInitialNodesWithoutYield(nodes) {
             var numNodes = nodes.length;
@@ -43462,12 +43960,12 @@ var ts;
                 if (ts.isIdentifier(original) && original.parent) {
                     var declaration = resolver.getReferencedValueDeclaration(original);
                     if (declaration) {
-                        var name_37 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
-                        if (name_37) {
-                            var clone_8 = ts.getMutableClone(name_37);
-                            ts.setSourceMapRange(clone_8, node);
-                            ts.setCommentRange(clone_8, node);
-                            return clone_8;
+                        var name_38 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
+                        if (name_38) {
+                            var clone_6 = ts.getMutableClone(name_38);
+                            ts.setSourceMapRange(clone_6, node);
+                            ts.setCommentRange(clone_6, node);
+                            return clone_6;
                         }
                     }
                 }
@@ -43858,10 +44356,7 @@ var ts;
             currentExceptionBlock = undefined;
             withBlockStack = undefined;
             var buildResult = buildStatements();
-            return ts.createCall(ts.createHelperName(currentSourceFile.externalHelpersModuleName, "__generator"), undefined, [
-                ts.createThis(),
-                ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 4194304)
-            ]);
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(undefined, undefined, undefined, undefined, [ts.createParameter(undefined, undefined, undefined, state)], undefined, ts.createBlock(buildResult, undefined, buildResult.length > 0)), 262144));
         }
         function buildStatements() {
             if (operations) {
@@ -44124,6 +44619,16 @@ var ts;
         }
     }
     ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(generatorHelper);
+        return ts.createCall(ts.getHelperName("__generator"), undefined, [ts.createThis(), body]);
+    }
+    var generatorHelper = {
+        name: "typescript:generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
     var _a;
 })(ts || (ts = {}));
 var ts;
@@ -44180,7 +44685,7 @@ var ts;
             _a[ts.ModuleKind.AMD] = transformAMDModule,
             _a[ts.ModuleKind.UMD] = transformUMDModule,
             _a));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var compilerOptions = context.getCompilerOptions();
         var resolver = context.getEmitResolver();
         var host = context.getEmitHost();
@@ -44209,7 +44714,7 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver);
+            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
             var updated = transformModule(node);
             currentSourceFile = undefined;
@@ -44220,12 +44725,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, false);
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(updated, 2 | ts.getEmitFlags(node));
+                ts.addEmitHelper(updated, exportStarHelper);
             }
             return updated;
         }
@@ -44235,8 +44741,7 @@ var ts;
             return transformAsynchronousModule(node, define, moduleName, true);
         }
         function transformUMDModule(node) {
-            var define = ts.createIdentifier("define");
-            ts.setEmitFlags(define, 16);
+            var define = ts.createRawExpression(umdHelper);
             return transformAsynchronousModule(node, define, undefined, false);
         }
         function transformAsynchronousModule(node, define, moduleName, includeNonAmdDependencies) {
@@ -44273,7 +44778,7 @@ var ts;
                 var externalModuleName = ts.getExternalModuleNameLiteral(importNode, currentSourceFile, host, resolver, compilerOptions);
                 var importAliasName = ts.getLocalNameForExternalImport(importNode, currentSourceFile);
                 if (includeNonAmdDependencies && importAliasName) {
-                    ts.setEmitFlags(importAliasName, 128);
+                    ts.setEmitFlags(importAliasName, 4);
                     aliasedModuleNames.push(externalModuleName);
                     importAliasNames.push(ts.createParameter(undefined, undefined, undefined, importAliasName));
                 }
@@ -44287,12 +44792,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, true);
             var body = ts.createBlock(statements, undefined, true);
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(body, 2);
+                ts.addEmitHelper(body, exportStarHelper);
             }
             return body;
         }
@@ -44300,12 +44806,12 @@ var ts;
             if (currentModuleInfo.exportEquals) {
                 if (emitAsReturn) {
                     var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 12288 | 49152);
+                    ts.setEmitFlags(statement, 384 | 1536);
                     statements.push(statement);
                 }
                 else {
                     var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 49152);
+                    ts.setEmitFlags(statement, 1536);
                     statements.push(statement);
                 }
             }
@@ -44326,9 +44832,9 @@ var ts;
                     return visitFunctionDeclaration(node);
                 case 226:
                     return visitClassDeclaration(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return node;
@@ -44519,7 +45025,7 @@ var ts;
         }
         function transformInitializedVariable(node) {
             if (ts.isBindingPattern(node.name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createExportExpression);
+                return ts.flattenDestructuringAssignment(node, undefined, context, 0, false, createExportExpression);
             }
             else {
                 return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, node.name), node.initializer);
@@ -44533,7 +45039,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -44653,7 +45159,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value), location);
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -44720,6 +45226,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
                 if (exportContainer && exportContainer.kind === 261) {
@@ -44731,8 +45244,8 @@ var ts;
                         return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent), ts.createIdentifier("default"), node);
                     }
                     else if (ts.isImportSpecifier(importDeclaration)) {
-                        var name_38 = importDeclaration.propertyName || importDeclaration.name;
-                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_38), node);
+                        var name_39 = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_39), node);
                     }
                 }
             }
@@ -44791,6 +45304,12 @@ var ts;
         var _a;
     }
     ts.transformModule = transformModule;
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        scoped: true,
+        text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
+    };
+    var umdHelper = "\n        (function (dependencies, factory) {\n            if (typeof module === 'object' && typeof module.exports === 'object') {\n                var v = factory(require, exports); if (v !== undefined) module.exports = v;\n            }\n            else if (typeof define === 'function' && define.amd) {\n                define(dependencies, factory);\n            }\n        })";
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
@@ -44829,14 +45348,15 @@ var ts;
             var id = ts.getOriginalNodeId(node);
             currentSourceFile = node;
             enclosingBlockScopedContainer = node;
-            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver);
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
             contextObject = ts.createUniqueName("context");
             var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
             var moduleBodyFunction = ts.createFunctionExpression(undefined, undefined, undefined, undefined, [
                 ts.createParameter(undefined, undefined, undefined, exportFunction),
                 ts.createParameter(undefined, undefined, undefined, contextObject)
-            ], undefined, createSystemModuleBody(node, dependencyGroups));
+            ], undefined, moduleBodyBlock);
             var moduleName = ts.tryGetModuleNameFromFile(node, host, compilerOptions);
             var dependencies = ts.createArrayLiteral(ts.map(dependencyGroups, function (dependencyGroup) { return dependencyGroup.name; }));
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray([
@@ -44844,7 +45364,9 @@ var ts;
                     ? [moduleName, dependencies, moduleBodyFunction]
                     : [dependencies, moduleBodyFunction]))
             ], node.statements));
-            ts.setEmitFlags(updated, ts.getEmitFlags(node) & ~1);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
             if (noSubstitution) {
                 noSubstitutionMap[id] = noSubstitution;
                 noSubstitution = undefined;
@@ -44885,6 +45407,7 @@ var ts;
             statements.push(ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
                 ts.createVariableDeclaration("__moduleName", undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
             ])));
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, true);
             var executeStatements = ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset);
             ts.addRange(statements, hoistedStatements);
             ts.addRange(statements, endLexicalEnvironment());
@@ -44893,9 +45416,7 @@ var ts;
                 ts.createPropertyAssignment("setters", createSettersArray(exportStarFunction, dependencyGroups)),
                 ts.createPropertyAssignment("execute", ts.createFunctionExpression(undefined, undefined, undefined, undefined, [], undefined, ts.createBlock(executeStatements, undefined, true)))
             ]), true)));
-            var body = ts.createBlock(statements, undefined, true);
-            ts.setEmitFlags(body, 1);
-            return body;
+            return ts.createBlock(statements, undefined, true);
         }
         function addExportStarIfNeeded(statements) {
             if (!moduleInfo.hasExportStarsToExportValues) {
@@ -44955,7 +45476,7 @@ var ts;
             var exports = ts.createIdentifier("exports");
             var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
             if (localNames) {
-                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createHasOwnProperty(localNames, n)));
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), undefined, [n])));
             }
             return ts.createFunctionDeclaration(undefined, undefined, undefined, exportStarFunction, undefined, [ts.createParameter(undefined, undefined, undefined, m)], undefined, ts.createBlock([
                 ts.createVariableStatement(undefined, ts.createVariableDeclarationList([
@@ -44964,7 +45485,7 @@ var ts;
                 ts.createForIn(ts.createVariableDeclarationList([
                     ts.createVariableDeclaration(n, undefined)
                 ]), m, ts.createBlock([
-                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 32)
+                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1)
                 ])),
                 ts.createStatement(ts.createCall(exportFunction, undefined, [exports]))
             ], undefined, true));
@@ -45136,14 +45657,14 @@ var ts;
             }
         }
         function shouldHoistVariableDeclarationList(node) {
-            return (ts.getEmitFlags(node) & 16777216) === 0
+            return (ts.getEmitFlags(node) & 1048576) === 0
                 && (enclosingBlockScopedContainer.kind === 261
                     || (ts.getOriginalNode(node).flags & 3) === 0);
         }
         function transformInitializedVariable(node, isExportedDeclaration) {
             var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
             return ts.isBindingPattern(node.name)
-                ? ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createAssignment, destructuringVisitor)
+                ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, false, createAssignment)
                 : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
         }
         function createExportedVariableAssignment(name, value, location) {
@@ -45167,7 +45688,7 @@ var ts;
             return node;
         }
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432) !== 0;
+            return (ts.getEmitFlags(node) & 2097152) !== 0;
         }
         function visitEndOfDeclarationMarker(node) {
             var id = ts.getOriginalNodeId(node);
@@ -45284,7 +45805,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value));
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152);
+                ts.setEmitFlags(statement, 1536);
             }
             return statement;
         }
@@ -45328,9 +45849,9 @@ var ts;
                     return visitCatchClause(node);
                 case 204:
                     return visitBlock(node);
-                case 294:
-                    return visitMergeDeclarationMarker(node);
                 case 295:
+                    return visitMergeDeclarationMarker(node);
+                case 296:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return destructuringVisitor(node);
@@ -45420,11 +45941,11 @@ var ts;
             return node;
         }
         function destructuringVisitor(node) {
-            if (node.transformFlags & 16384
+            if (node.transformFlags & 1024
                 && node.kind === 192) {
                 return visitDestructuringAssignment(node);
             }
-            else if (node.transformFlags & 32768) {
+            else if (node.transformFlags & 2048) {
                 return ts.visitEachChild(node, destructuringVisitor, context);
             }
             else {
@@ -45433,7 +45954,7 @@ var ts;
         }
         function visitDestructuringAssignment(node) {
             if (hasExportedReferenceInDestructuringTarget(node.left)) {
-                return ts.flattenDestructuringAssignment(context, node, true, hoistVariableDeclaration, destructuringVisitor);
+                return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0, true);
             }
             return ts.visitEachChild(node, destructuringVisitor, context);
         }
@@ -45515,6 +46036,13 @@ var ts;
             return node;
         }
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var importDeclaration = resolver.getReferencedImportDeclaration(node);
                 if (importDeclaration) {
@@ -45602,13 +46130,30 @@ var ts;
 (function (ts) {
     function transformES2015Module(context) {
         var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(261);
+        context.enableSubstitution(70);
+        var currentSourceFile;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
             if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
-                return ts.visitEachChild(node, visitor, context);
+                var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
+                if (externalHelpersModuleName) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologueDirectives(statements, node.statements);
+                    ts.append(statements, ts.createImportDeclaration(undefined, undefined, ts.createImportClause(undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
             }
             return node;
         }
@@ -45624,6 +46169,32 @@ var ts;
         function visitExportAssignment(node) {
             return node.isExportEquals ? undefined : node;
         }
+        function onEmitNode(emitContext, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSourceFile = undefined;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
+            }
+        }
+        function onSubstituteNode(emitContext, node) {
+            node = previousOnSubstituteNode(emitContext, node);
+            if (ts.isIdentifier(node) && emitContext === 1) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+            }
+            return node;
+        }
     }
     ts.transformES2015Module = transformES2015Module;
 })(ts || (ts = {}));
@@ -45667,21 +46238,27 @@ var ts;
     }
     ts.getTransformers = getTransformers;
     function transformFiles(resolver, host, sourceFiles, transformers) {
+        var enabledSyntaxKindFeatures = new Array(298);
+        var lexicalEnvironmentDisabled = false;
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
         var lexicalEnvironmentVariableDeclarationsStack = [];
         var lexicalEnvironmentFunctionDeclarationsStack = [];
-        var enabledSyntaxKindFeatures = new Array(296);
         var lexicalEnvironmentStackOffset = 0;
-        var hoistedVariableDeclarations;
-        var hoistedFunctionDeclarations;
-        var lexicalEnvironmentDisabled;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
         var context = {
             getCompilerOptions: function () { return host.getCompilerOptions(); },
             getEmitResolver: function () { return resolver; },
             getEmitHost: function () { return host; },
-            hoistVariableDeclaration: hoistVariableDeclaration,
-            hoistFunctionDeclaration: hoistFunctionDeclaration,
             startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
             endLexicalEnvironment: endLexicalEnvironment,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
             onSubstituteNode: function (_emitContext, node) { return node; },
             enableSubstitution: enableSubstitution,
             isSubstitutionEnabled: isSubstitutionEnabled,
@@ -45708,7 +46285,7 @@ var ts;
         }
         function isSubstitutionEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 1) !== 0
-                && (ts.getEmitFlags(node) & 128) === 0;
+                && (ts.getEmitFlags(node) & 4) === 0;
         }
         function emitNodeWithSubstitution(emitContext, node, emitCallback) {
             if (node) {
@@ -45727,7 +46304,7 @@ var ts;
         }
         function isEmitNotificationEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 2) !== 0
-                || (ts.getEmitFlags(node) & 64) !== 0;
+                || (ts.getEmitFlags(node) & 2) !== 0;
         }
         function emitNodeWithNotification(emitContext, node, emitCallback) {
             if (node) {
@@ -45742,39 +46319,51 @@ var ts;
         function hoistVariableDeclaration(name) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
             var decl = ts.createVariableDeclaration(name);
-            if (!hoistedVariableDeclarations) {
-                hoistedVariableDeclarations = [decl];
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
             }
             else {
-                hoistedVariableDeclarations.push(decl);
+                lexicalEnvironmentVariableDeclarations.push(decl);
             }
         }
         function hoistFunctionDeclaration(func) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
-            if (!hoistedFunctionDeclarations) {
-                hoistedFunctionDeclarations = [func];
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
             }
             else {
-                hoistedFunctionDeclarations.push(func);
+                lexicalEnvironmentFunctionDeclarations.push(func);
             }
         }
         function startLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
-            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedVariableDeclarations;
-            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedFunctionDeclarations;
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
             lexicalEnvironmentStackOffset++;
-            hoistedVariableDeclarations = undefined;
-            hoistedFunctionDeclarations = undefined;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+        }
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
         }
         function endLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             var statements;
-            if (hoistedVariableDeclarations || hoistedFunctionDeclarations) {
-                if (hoistedFunctionDeclarations) {
-                    statements = hoistedFunctionDeclarations.slice();
+            if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = lexicalEnvironmentFunctionDeclarations.slice();
                 }
-                if (hoistedVariableDeclarations) {
-                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(hoistedVariableDeclarations));
+                if (lexicalEnvironmentVariableDeclarations) {
+                    var statement = ts.createVariableStatement(undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                     if (!statements) {
                         statements = [statement];
                     }
@@ -45784,10 +46373,25 @@ var ts;
                 }
             }
             lexicalEnvironmentStackOffset--;
-            hoistedVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
-            hoistedFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+            }
             return statements;
         }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
     }
     ts.transformFiles = transformFiles;
     var _a;
@@ -46042,15 +46646,15 @@ var ts;
             }
         }
         function emitLines(nodes) {
-            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
-                var node = nodes_2[_i];
+            for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+                var node = nodes_4[_i];
                 emit(node);
             }
         }
         function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
             var currentWriterPos = writer.getTextPos();
-            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
-                var node = nodes_3[_i];
+            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                var node = nodes_5[_i];
                 if (!canEmitFn || canEmitFn(node)) {
                     if (currentWriterPos !== writer.getTextPos()) {
                         write(separator);
@@ -46065,7 +46669,7 @@ var ts;
         }
         function writeJsDocComments(declaration) {
             if (declaration) {
-                var jsDocComments = ts.getJsDocCommentsFromText(declaration, currentText);
+                var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
                 ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
                 ts.emitComments(currentText, currentLineMap, writer, jsDocComments, false, true, newLine, ts.writeCommentRange);
             }
@@ -46252,9 +46856,9 @@ var ts;
             var count = 0;
             while (true) {
                 count++;
-                var name_39 = baseName + "_" + count;
-                if (!(name_39 in currentIdentifiers)) {
-                    return name_39;
+                var name_40 = baseName + "_" + count;
+                if (!(name_40 in currentIdentifiers)) {
+                    return name_40;
                 }
             }
         }
@@ -46648,6 +47252,9 @@ var ts;
                         case 225:
                             diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                             break;
+                        case 228:
+                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                            break;
                         default:
                             ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                     }
@@ -46741,7 +47348,10 @@ var ts;
             var prevEnclosingDeclaration = enclosingDeclaration;
             enclosingDeclaration = node;
             emitTypeParameters(node.typeParameters);
-            emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), false);
+            var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
+            if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
+                emitHeritageClause(interfaceExtendsTypes, false);
+            }
             write(" {");
             writeLine();
             increaseIndent();
@@ -47459,12 +48069,12 @@ var ts;
                 var emitNode = node.emitNode;
                 var emitFlags = emitNode && emitNode.flags;
                 var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
-                if (node.kind !== 292
-                    && (emitFlags & 512) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 16) === 0
                     && pos >= 0) {
                     emitPos(ts.skipTrivia(currentSourceText, pos));
                 }
-                if (emitFlags & 2048) {
+                if (emitFlags & 64) {
                     disabled = true;
                     emitCallback(emitContext, node);
                     disabled = false;
@@ -47472,8 +48082,8 @@ var ts;
                 else {
                     emitCallback(emitContext, node);
                 }
-                if (node.kind !== 292
-                    && (emitFlags & 1024) === 0
+                if (node.kind !== 293
+                    && (emitFlags & 32) === 0
                     && end >= 0) {
                     emitPos(end);
                 }
@@ -47487,13 +48097,13 @@ var ts;
             var emitFlags = emitNode && emitNode.flags;
             var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
             tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
-            if ((emitFlags & 4096) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 128) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             tokenPos = emitCallback(token, tokenPos);
             if (range)
                 tokenPos = range.end;
-            if ((emitFlags & 8192) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 256) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             return tokenPos;
@@ -47603,7 +48213,7 @@ var ts;
                 var _a = ts.getCommentRange(node), pos = _a.pos, end = _a.end;
                 var emitFlags = ts.getEmitFlags(node);
                 if ((pos < 0 && end < 0) || (pos === end)) {
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -47616,9 +48226,9 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.mark("preEmitNodeWithComment");
                     }
-                    var isEmittedNode = node.kind !== 292;
-                    var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-                    var skipTrailingComments = end < 0 || (emitFlags & 32768) !== 0;
+                    var isEmittedNode = node.kind !== 293;
+                    var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+                    var skipTrailingComments = end < 0 || (emitFlags & 1024) !== 0;
                     if (!skipLeadingComments) {
                         emitLeadingComments(pos, isEmittedNode);
                     }
@@ -47637,7 +48247,7 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.measure("commentTime", "preEmitNodeWithComment");
                     }
-                    if (emitFlags & 65536) {
+                    if (emitFlags & 2048) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -47666,15 +48276,15 @@ var ts;
             }
             var pos = detachedRange.pos, end = detachedRange.end;
             var emitFlags = ts.getEmitFlags(node);
-            var skipLeadingComments = pos < 0 || (emitFlags & 16384) !== 0;
-            var skipTrailingComments = disabled || end < 0 || (emitFlags & 32768) !== 0;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512) !== 0;
+            var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024) !== 0;
             if (!skipLeadingComments) {
                 emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
             }
             if (extendedDiagnostics) {
                 ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
             }
-            if (emitFlags & 65536 && !disabled) {
+            if (emitFlags & 2048 && !disabled) {
                 disabled = true;
                 emitCallback(node);
                 disabled = false;
@@ -47835,18 +48445,6 @@ var ts;
     function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
         var delimiters = createDelimiterMap();
         var brackets = createBracketsMap();
-        var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n    function __() { this.constructor = d; }\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
-        var assignHelper = "\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n        s = arguments[i];\n        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n            t[p] = s[p];\n    }\n    return t;\n};";
-        var restHelper = "\nvar __rest = (this && this.__rest) || function (s, e) {\n    var t = {};\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && !e.indexOf(p))\n        t[p] = s[p];\n    return t;\n};";
-        var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
-        var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
-        var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n    return function (target, key) { decorator(target, key, paramIndex); }\n};";
-        var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments)).next());\n    });\n};";
-        var generatorHelper = "\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n    return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n    function verb(n) { return function (v) { return step([n, v]); }; }\n    function step(op) {\n        if (f) throw new TypeError(\"Generator is already executing.\");\n        while (_) try {\n            if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n            if (y = 0, t) op = [0, t.value];\n            switch (op[0]) {\n                case 0: case 1: t = op; break;\n                case 4: _.label++; return { value: op[1], done: false };\n                case 5: _.label++; y = op[1]; op = [0]; continue;\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                default:\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                    if (t[2]) _.ops.pop();\n                    _.trys.pop(); continue;\n            }\n            op = body.call(thisArg, _);\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n    }\n};";
-        var exportStarHelper = "\nfunction __export(m) {\n    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}";
-        var umdHelper = "\n(function (dependencies, factory) {\n    if (typeof module === 'object' && typeof module.exports === 'object') {\n        var v = factory(require, exports); if (v !== undefined) module.exports = v;\n    }\n    else if (typeof define === 'function' && define.amd) {\n        define(dependencies, factory);\n    }\n})";
-        var superHelper = "\nconst _super = name => super[name];";
-        var advancedSuperHelper = "\nconst _super = (function (geti, seti) {\n    const cache = Object.create(null);\n    return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n})(name => super[name], (name, value) => super[name] = value);";
         var compilerOptions = host.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var moduleKind = ts.getEmitModuleKind(compilerOptions);
@@ -47868,12 +48466,7 @@ var ts;
         var currentSourceFile;
         var currentText;
         var currentFileIdentifiers;
-        var extendsEmitted;
-        var assignEmitted;
-        var restEmitted;
-        var decorateEmitted;
-        var paramEmitted;
-        var awaiterEmitted;
+        var bundledHelpers;
         var isOwnFileEmit;
         var emitSkipped = false;
         var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
@@ -47922,11 +48515,12 @@ var ts;
             nodeIdToGeneratedName = [];
             autoGeneratedIdToGeneratedName = [];
             generatedNameSet = ts.createMap();
+            bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
             isOwnFileEmit = !isBundledEmit;
             if (isBundledEmit && moduleKind) {
                 for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                     var sourceFile = sourceFiles_5[_a];
-                    emitEmitHelpers(sourceFile);
+                    emitHelpers(sourceFile, true);
                 }
             }
             ts.forEach(sourceFiles, printSourceFile);
@@ -47936,23 +48530,18 @@ var ts;
                 write("//# " + "sourceMappingURL" + "=" + sourceMappingURL);
             }
             if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
-                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false);
+                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), false, sourceFiles);
             }
             if (sourceMapDataList) {
                 sourceMapDataList.push(sourceMap.getSourceMapData());
             }
-            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM);
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
             sourceMap.reset();
             comments.reset();
             writer.reset();
             tempFlags = 0;
             currentSourceFile = undefined;
             currentText = undefined;
-            extendsEmitted = false;
-            assignEmitted = false;
-            decorateEmitted = false;
-            paramEmitted = false;
-            awaiterEmitted = false;
             isOwnFileEmit = false;
         }
         function printSourceFile(node) {
@@ -48320,8 +48909,10 @@ var ts;
                     return emitJsxElement(node);
                 case 247:
                     return emitJsxSelfClosingElement(node);
-                case 293:
+                case 294:
                     return emitPartiallyEmittedExpression(node);
+                case 297:
+                    return writeLines(node.text);
             }
         }
         function emitNumericLiteral(node) {
@@ -48341,12 +48932,7 @@ var ts;
             }
         }
         function emitIdentifier(node) {
-            if (ts.getEmitFlags(node) & 16) {
-                writeLines(umdHelper);
-            }
-            else {
-                write(getTextOfNode(node, false));
-            }
+            write(getTextOfNode(node, false));
         }
         function emitQualifiedName(node) {
             emitEntityName(node.left);
@@ -48589,7 +49175,7 @@ var ts;
                 write("{}");
             }
             else {
-                var indentedFlag = ts.getEmitFlags(node) & 524288;
+                var indentedFlag = ts.getEmitFlags(node) & 32768;
                 if (indentedFlag) {
                     increaseIndent();
                 }
@@ -48604,7 +49190,7 @@ var ts;
         function emitPropertyAccessExpression(node) {
             var indentBeforeDot = false;
             var indentAfterDot = false;
-            if (!(ts.getEmitFlags(node) & 1048576)) {
+            if (!(ts.getEmitFlags(node) & 65536)) {
                 var dotRangeStart = node.expression.end;
                 var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
                 var dotToken = { kind: 22, pos: dotRangeStart, end: dotRangeEnd };
@@ -48788,7 +49374,7 @@ var ts;
             }
         }
         function emitBlockStatements(node) {
-            if (ts.getEmitFlags(node) & 32) {
+            if (ts.getEmitFlags(node) & 1) {
                 emitList(node, node.statements, 384);
             }
             else {
@@ -48964,11 +49550,11 @@ var ts;
             var body = node.body;
             if (body) {
                 if (ts.isBlock(body)) {
-                    var indentedFlag = ts.getEmitFlags(node) & 524288;
+                    var indentedFlag = ts.getEmitFlags(node) & 32768;
                     if (indentedFlag) {
                         increaseIndent();
                     }
-                    if (ts.getEmitFlags(node) & 4194304) {
+                    if (ts.getEmitFlags(node) & 262144) {
                         emitSignatureHead(node);
                         emitBlockFunctionBody(body);
                     }
@@ -49000,7 +49586,7 @@ var ts;
             emitWithPrefix(": ", node.type);
         }
         function shouldEmitBlockFunctionBodyOnSingleLine(body) {
-            if (ts.getEmitFlags(body) & 32) {
+            if (ts.getEmitFlags(body) & 1) {
                 return true;
             }
             if (body.multiLine) {
@@ -49055,7 +49641,7 @@ var ts;
             emitModifiers(node, node.modifiers);
             write("class");
             emitNodeWithPrefix(" ", node.name, emitIdentifierName);
-            var indentedFlag = ts.getEmitFlags(node) & 524288;
+            var indentedFlag = ts.getEmitFlags(node) & 32768;
             if (indentedFlag) {
                 increaseIndent();
             }
@@ -49314,7 +49900,7 @@ var ts;
             emit(node.name);
             write(": ");
             var initializer = node.initializer;
-            if ((ts.getEmitFlags(initializer) & 16384) === 0) {
+            if ((ts.getEmitFlags(initializer) & 512) === 0) {
                 var commentRange = ts.getCommentRange(initializer);
                 emitTrailingCommentsOfPosition(commentRange.pos);
             }
@@ -49368,71 +49954,31 @@ var ts;
             }
             return statements.length;
         }
-        function emitHelpers(node) {
-            var emitFlags = ts.getEmitFlags(node);
+        function emitHelpers(node, isBundle) {
+            var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
+            var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
+            var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
             var helpersEmitted = false;
-            if (emitFlags & 1) {
-                helpersEmitted = emitEmitHelpers(currentSourceFile);
-            }
-            if (emitFlags & 2) {
-                writeLines(exportStarHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 4) {
-                writeLines(superHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 8) {
-                writeLines(advancedSuperHelper);
-                helpersEmitted = true;
-            }
-            return helpersEmitted;
-        }
-        function emitEmitHelpers(node) {
-            if (compilerOptions.noEmitHelpers) {
-                return false;
-            }
-            if (compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                return false;
-            }
-            var helpersEmitted = false;
-            if ((languageVersion < 2) && (!extendsEmitted && node.flags & 1024)) {
-                writeLines(extendsHelper);
-                extendsEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 5 || currentSourceFile.scriptKind === 2 || currentSourceFile.scriptKind === 4) &&
-                compilerOptions.jsx !== 1 &&
-                !assignEmitted &&
-                node.flags & 16384) {
-                writeLines(assignHelper);
-                assignEmitted = true;
-            }
-            if (languageVersion < 5 && !restEmitted && node.flags & 32768) {
-                writeLines(restHelper);
-                restEmitted = true;
-            }
-            if (!decorateEmitted && node.flags & 2048) {
-                writeLines(decorateHelper);
-                if (compilerOptions.emitDecoratorMetadata) {
-                    writeLines(metadataHelper);
-                }
-                decorateEmitted = true;
-                helpersEmitted = true;
-            }
-            if (!paramEmitted && node.flags & 4096) {
-                writeLines(paramHelper);
-                paramEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 4) && (!awaiterEmitted && node.flags & 8192)) {
-                writeLines(awaiterHelper);
-                if (languageVersion < 2) {
-                    writeLines(generatorHelper);
+            var helpers = ts.getEmitHelpers(node);
+            if (helpers) {
+                for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
+                    var helper = _b[_a];
+                    if (!helper.scoped) {
+                        if (shouldSkip)
+                            continue;
+                        if (shouldBundle) {
+                            if (bundledHelpers[helper.name]) {
+                                continue;
+                            }
+                            bundledHelpers[helper.name] = true;
+                        }
+                    }
+                    else if (isBundle) {
+                        continue;
+                    }
+                    writeLines(helper.text);
+                    helpersEmitted = true;
                 }
-                awaiterEmitted = true;
-                helpersEmitted = true;
             }
             if (helpersEmitted) {
                 writeLine();
@@ -49440,9 +49986,10 @@ var ts;
             return helpersEmitted;
         }
         function writeLines(text) {
-            var lines = text.split(/\r\n|\r|\n/g);
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = guessIndentation(lines);
             for (var i = 0; i < lines.length; i++) {
-                var line = lines[i];
+                var line = indentation ? lines[i].slice(indentation) : lines[i];
                 if (line.length) {
                     if (i > 0) {
                         writeLine();
@@ -49451,6 +49998,21 @@ var ts;
                 }
             }
         }
+        function guessIndentation(lines) {
+            var indentation;
+            for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
+                var line = lines_1[_a];
+                for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
+                    if (!ts.isWhiteSpace(line.charCodeAt(i))) {
+                        if (indentation === undefined || i < indentation) {
+                            indentation = i;
+                            break;
+                        }
+                    }
+                }
+            }
+            return indentation;
+        }
         function emitShebang() {
             var shebang = ts.getShebang(currentText);
             if (shebang) {
@@ -49792,21 +50354,21 @@ var ts;
         }
         function makeTempVariableName(flags) {
             if (flags && !(tempFlags & flags)) {
-                var name_40 = flags === 268435456 ? "_i" : "_n";
-                if (isUniqueName(name_40)) {
+                var name_41 = flags === 268435456 ? "_i" : "_n";
+                if (isUniqueName(name_41)) {
                     tempFlags |= flags;
-                    return name_40;
+                    return name_41;
                 }
             }
             while (true) {
                 var count = tempFlags & 268435455;
                 tempFlags++;
                 if (count !== 8 && count !== 13) {
-                    var name_41 = count < 26
+                    var name_42 = count < 26
                         ? "_" + String.fromCharCode(97 + count)
                         : "_" + (count - 26);
-                    if (isUniqueName(name_41)) {
-                        return name_41;
+                    if (isUniqueName(name_42)) {
+                        return name_42;
                     }
                 }
             }
@@ -49927,7 +50489,6 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.2.0-dev.20161115";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -50143,10 +50704,10 @@ var ts;
         var resolutions = [];
         var cache = ts.createMap();
         for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
-            var name_42 = names_1[_i];
-            var result = name_42 in cache
-                ? cache[name_42]
-                : cache[name_42] = loader(name_42, containingFile);
+            var name_43 = names_1[_i];
+            var result = name_43 in cache
+                ? cache[name_43]
+                : cache[name_43] = loader(name_43, containingFile);
             resolutions.push(result);
         }
         return resolutions;
@@ -50200,7 +50761,8 @@ var ts;
             ts.forEach(rootNames, function (name) { return processRootFile(name, false); });
             var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
             if (typeReferences.length) {
-                var containingFilename = ts.combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
                 var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (var i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);
@@ -50680,8 +51242,8 @@ var ts;
                             }
                             break;
                     }
-                    for (var _b = 0, nodes_4 = nodes; _b < nodes_4.length; _b++) {
-                        var node = nodes_4[_b];
+                    for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
+                        var node = nodes_6[_b];
                         walk(node);
                     }
                 }
@@ -51714,7 +52276,7 @@ var ts;
             case 243:
             case 237:
                 return ts.ScriptElementKind.alias;
-            case 284:
+            case 285:
                 return ts.ScriptElementKind.typeElement;
             default:
                 return ts.ScriptElementKind.unknown;
@@ -51929,7 +52491,7 @@ var ts;
     ts.findChildOfKind = findChildOfKind;
     function findContainingList(node) {
         var syntaxList = ts.forEach(node.parent.getChildren(), function (c) {
-            if (c.kind === 291 && c.pos <= node.pos && c.end >= node.end) {
+            if (c.kind === 292 && c.pos <= node.pos && c.end >= node.end) {
                 return c;
             }
         });
@@ -52165,11 +52727,11 @@ var ts;
             }
         }
         if (node) {
-            if (node.jsDocComments) {
-                for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                    var jsDocComment = _a[_i];
-                    if (jsDocComment.tags) {
-                        for (var _b = 0, _c = jsDocComment.tags; _b < _c.length; _b++) {
+            if (node.jsDoc) {
+                for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                    var jsDoc = _a[_i];
+                    if (jsDoc.tags) {
+                        for (var _b = 0, _c = jsDoc.tags; _b < _c.length; _b++) {
                             var tag = _c[_b];
                             if (tag.pos <= position && position <= tag.end) {
                                 return tag;
@@ -52491,7 +53053,7 @@ var ts;
         if (isImportOrExportSpecifierName(location)) {
             return location.getText();
         }
-        else if (ts.isStringOrNumericLiteral(location.kind) &&
+        else if (ts.isStringOrNumericLiteral(location) &&
             location.parent.kind === 142) {
             return location.text;
         }
@@ -53574,16 +54136,16 @@ var ts;
                     pushClassification(tag.tagName.pos, tag.tagName.end - tag.tagName.pos, 18);
                     pos = tag.tagName.end;
                     switch (tag.kind) {
-                        case 280:
+                        case 281:
                             processJSDocParameterTag(tag);
                             break;
-                        case 283:
+                        case 284:
                             processJSDocTemplateTag(tag);
                             break;
-                        case 282:
+                        case 283:
                             processElement(tag.typeExpression);
                             break;
-                        case 281:
+                        case 282:
                             processElement(tag.typeExpression);
                             break;
                     }
@@ -53835,13 +54397,13 @@ var ts;
             function getJavaScriptCompletionEntries(sourceFile, position, uniqueNames) {
                 var entries = [];
                 var nameTable = ts.getNameTable(sourceFile);
-                for (var name_43 in nameTable) {
-                    if (nameTable[name_43] === position) {
+                for (var name_44 in nameTable) {
+                    if (nameTable[name_44] === position) {
                         continue;
                     }
-                    if (!uniqueNames[name_43]) {
-                        uniqueNames[name_43] = name_43;
-                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_43), compilerOptions.target, true);
+                    if (!uniqueNames[name_44]) {
+                        uniqueNames[name_44] = name_44;
+                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_44), compilerOptions.target, true);
                         if (displayName) {
                             var entry = {
                                 name: displayName,
@@ -54263,11 +54825,11 @@ var ts;
                     if (currentConfigPath) {
                         paths.push(currentConfigPath);
                         currentDir = ts.getDirectoryPath(currentConfigPath);
-                        var parent_14 = ts.getDirectoryPath(currentDir);
-                        if (currentDir === parent_14) {
+                        var parent_13 = ts.getDirectoryPath(currentDir);
+                        if (currentDir === parent_13) {
                             break;
                         }
-                        currentDir = parent_14;
+                        currentDir = parent_13;
                     }
                     else {
                         break;
@@ -54344,10 +54906,10 @@ var ts;
         function getCompletionEntryDetails(typeChecker, log, compilerOptions, sourceFile, position, entryName) {
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_2 = completionData.location;
-                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_2) === entryName ? s : undefined; });
+                var symbols = completionData.symbols, location_3 = completionData.location;
+                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_3) === entryName ? s : undefined; });
                 if (symbol) {
-                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_2, location_2, 7), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
+                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_3, location_3, 7), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
                     return {
                         name: entryName,
                         kindModifiers: ts.SymbolDisplay.getSymbolModifiers(symbol),
@@ -54373,8 +54935,8 @@ var ts;
         function getCompletionEntrySymbol(typeChecker, log, compilerOptions, sourceFile, position, entryName) {
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_3 = completionData.location;
-                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_3) === entryName ? s : undefined; });
+                var symbols = completionData.symbols, location_4 = completionData.location;
+                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, false, location_4) === entryName ? s : undefined; });
             }
             return undefined;
         }
@@ -54399,9 +54961,9 @@ var ts;
                         isJsDocTagName = true;
                     }
                     switch (tag.kind) {
-                        case 282:
-                        case 280:
+                        case 283:
                         case 281:
+                        case 282:
                             var tagWithExpression = tag;
                             if (tagWithExpression.typeExpression) {
                                 insideJsDocTagExpression = tagWithExpression.typeExpression.pos < position && position < tagWithExpression.typeExpression.end;
@@ -54436,13 +54998,13 @@ var ts;
                     log("Returning an empty list because completion was requested in an invalid position.");
                     return undefined;
                 }
-                var parent_15 = contextToken.parent, kind = contextToken.kind;
+                var parent_14 = contextToken.parent, kind = contextToken.kind;
                 if (kind === 22) {
-                    if (parent_15.kind === 177) {
+                    if (parent_14.kind === 177) {
                         node = contextToken.parent.expression;
                         isRightOfDot = true;
                     }
-                    else if (parent_15.kind === 141) {
+                    else if (parent_14.kind === 141) {
                         node = contextToken.parent.left;
                         isRightOfDot = true;
                     }
@@ -54739,9 +55301,9 @@ var ts;
                     switch (contextToken.kind) {
                         case 16:
                         case 25:
-                            var parent_16 = contextToken.parent;
-                            if (parent_16 && (parent_16.kind === 176 || parent_16.kind === 172)) {
-                                return parent_16;
+                            var parent_15 = contextToken.parent;
+                            if (parent_15 && (parent_15.kind === 176 || parent_15.kind === 172)) {
+                                return parent_15;
                             }
                             break;
                     }
@@ -54764,34 +55326,34 @@ var ts;
             }
             function tryGetContainingJsxElement(contextToken) {
                 if (contextToken) {
-                    var parent_17 = contextToken.parent;
+                    var parent_16 = contextToken.parent;
                     switch (contextToken.kind) {
                         case 27:
                         case 40:
                         case 70:
                         case 250:
                         case 251:
-                            if (parent_17 && (parent_17.kind === 247 || parent_17.kind === 248)) {
-                                return parent_17;
+                            if (parent_16 && (parent_16.kind === 247 || parent_16.kind === 248)) {
+                                return parent_16;
                             }
-                            else if (parent_17.kind === 250) {
-                                return parent_17.parent;
+                            else if (parent_16.kind === 250) {
+                                return parent_16.parent;
                             }
                             break;
                         case 9:
-                            if (parent_17 && ((parent_17.kind === 250) || (parent_17.kind === 251))) {
-                                return parent_17.parent;
+                            if (parent_16 && ((parent_16.kind === 250) || (parent_16.kind === 251))) {
+                                return parent_16.parent;
                             }
                             break;
                         case 17:
-                            if (parent_17 &&
-                                parent_17.kind === 252 &&
-                                parent_17.parent &&
-                                (parent_17.parent.kind === 250)) {
-                                return parent_17.parent.parent;
+                            if (parent_16 &&
+                                parent_16.kind === 252 &&
+                                parent_16.parent &&
+                                (parent_16.parent.kind === 250)) {
+                                return parent_16.parent.parent;
                             }
-                            if (parent_17 && parent_17.kind === 251) {
-                                return parent_17.parent;
+                            if (parent_16 && parent_16.kind === 251) {
+                                return parent_16.parent;
                             }
                             break;
                     }
@@ -54914,8 +55476,8 @@ var ts;
                     if (element.getStart() <= position && position <= element.getEnd()) {
                         continue;
                     }
-                    var name_44 = element.propertyName || element.name;
-                    existingImportsOrExports[name_44.text] = true;
+                    var name_45 = element.propertyName || element.name;
+                    existingImportsOrExports[name_45.text] = true;
                 }
                 if (!ts.someProperties(existingImportsOrExports)) {
                     return ts.filter(exportsOfModule, function (e) { return e.name !== "default"; });
@@ -55212,17 +55774,17 @@ var ts;
                 function getThrowStatementOwner(throwStatement) {
                     var child = throwStatement;
                     while (child.parent) {
-                        var parent_18 = child.parent;
-                        if (ts.isFunctionBlock(parent_18) || parent_18.kind === 261) {
-                            return parent_18;
+                        var parent_17 = child.parent;
+                        if (ts.isFunctionBlock(parent_17) || parent_17.kind === 261) {
+                            return parent_17;
                         }
-                        if (parent_18.kind === 221) {
-                            var tryStatement = parent_18;
+                        if (parent_17.kind === 221) {
+                            var tryStatement = parent_17;
                             if (tryStatement.tryBlock === child && tryStatement.catchClause) {
                                 return child;
                             }
                         }
-                        child = parent_18;
+                        child = parent_17;
                     }
                     return undefined;
                 }
@@ -56057,24 +56619,24 @@ var ts;
                     }
                     var containingTypeReference = getContainingTypeReference(refNode);
                     if (containingTypeReference) {
-                        var parent_19 = containingTypeReference.parent;
-                        if (ts.isVariableLike(parent_19) && parent_19.type === containingTypeReference && parent_19.initializer && isImplementationExpression(parent_19.initializer)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.initializer));
+                        var parent_18 = containingTypeReference.parent;
+                        if (ts.isVariableLike(parent_18) && parent_18.type === containingTypeReference && parent_18.initializer && isImplementationExpression(parent_18.initializer)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.initializer));
                         }
-                        else if (ts.isFunctionLike(parent_19) && parent_19.type === containingTypeReference && parent_19.body) {
-                            if (parent_19.body.kind === 204) {
-                                ts.forEachReturnStatement(parent_19.body, function (returnStatement) {
+                        else if (ts.isFunctionLike(parent_18) && parent_18.type === containingTypeReference && parent_18.body) {
+                            if (parent_18.body.kind === 204) {
+                                ts.forEachReturnStatement(parent_18.body, function (returnStatement) {
                                     if (returnStatement.expression && isImplementationExpression(returnStatement.expression)) {
                                         maybeAdd(getReferenceEntryFromNode(returnStatement.expression));
                                     }
                                 });
                             }
-                            else if (isImplementationExpression(parent_19.body)) {
-                                maybeAdd(getReferenceEntryFromNode(parent_19.body));
+                            else if (isImplementationExpression(parent_18.body)) {
+                                maybeAdd(getReferenceEntryFromNode(parent_18.body));
                             }
                         }
-                        else if (ts.isAssertionExpression(parent_19) && isImplementationExpression(parent_19.expression)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.expression));
+                        else if (ts.isAssertionExpression(parent_18) && isImplementationExpression(parent_18.expression)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.expression));
                         }
                     }
                 }
@@ -56450,9 +57012,9 @@ var ts;
                                 return undefined;
                             }
                         }
-                        var result_3 = [];
-                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_3, ts.createMap());
-                        return ts.forEach(result_3, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+                        var result_4 = [];
+                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_4, ts.createMap());
+                        return ts.forEach(result_4, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
                     }
                     return undefined;
                 });
@@ -56460,7 +57022,7 @@ var ts;
             function getNameFromObjectLiteralElement(node) {
                 if (node.name.kind === 142) {
                     var nameExpression = node.name.expression;
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     return undefined;
@@ -56472,20 +57034,20 @@ var ts;
                 var contextualType = typeChecker.getContextualType(objectLiteral);
                 var name = getNameFromObjectLiteralElement(node);
                 if (name && contextualType) {
-                    var result_4 = [];
+                    var result_5 = [];
                     var symbol_2 = contextualType.getProperty(name);
                     if (symbol_2) {
-                        result_4.push(symbol_2);
+                        result_5.push(symbol_2);
                     }
                     if (contextualType.flags & 65536) {
                         ts.forEach(contextualType.types, function (t) {
                             var symbol = t.getProperty(name);
                             if (symbol) {
-                                result_4.push(symbol);
+                                result_5.push(symbol);
                             }
                         });
                     }
-                    return result_4;
+                    return result_5;
                 }
                 return undefined;
             }
@@ -56713,13 +57275,13 @@ var ts;
                 return undefined;
             }
             if (type.flags & 65536 && !(type.flags & 16)) {
-                var result_5 = [];
+                var result_6 = [];
                 ts.forEach(type.types, function (t) {
                     if (t.symbol) {
-                        ts.addRange(result_5, getDefinitionFromSymbol(typeChecker, t.symbol, node));
+                        ts.addRange(result_6, getDefinitionFromSymbol(typeChecker, t.symbol, node));
                     }
                 });
-                return result_5;
+                return result_6;
             }
             if (!type.symbol) {
                 return undefined;
@@ -56911,7 +57473,7 @@ var ts;
         function getJsDocCommentsFromDeclarations(declarations) {
             var documentationComment = [];
             forEachUnique(declarations, function (declaration) {
-                var comments = ts.getJSDocComments(declaration, true);
+                var comments = ts.getCommentsFromJSDoc(declaration);
                 if (!comments) {
                     return;
                 }
@@ -57050,10 +57612,10 @@ var ts;
                     return;
                 }
                 var nameToDeclarations = sourceFile.getNamedDeclarations();
-                for (var name_45 in nameToDeclarations) {
-                    var declarations = nameToDeclarations[name_45];
+                for (var name_46 in nameToDeclarations) {
+                    var declarations = nameToDeclarations[name_46];
                     if (declarations) {
-                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_45);
+                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_46);
                         if (!matches) {
                             continue;
                         }
@@ -57064,14 +57626,14 @@ var ts;
                                 if (!containers) {
                                     return undefined;
                                 }
-                                matches = patternMatcher.getMatches(containers, name_45);
+                                matches = patternMatcher.getMatches(containers, name_46);
                                 if (!matches) {
                                     continue;
                                 }
                             }
                             var fileName = sourceFile.fileName;
                             var matchKind = bestMatchKind(matches);
-                            rawItems.push({ name: name_45, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
+                            rawItems.push({ name: name_46, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
                         }
                     }
                 }
@@ -57324,9 +57886,9 @@ var ts;
                 case 174:
                 case 223:
                     var decl = node;
-                    var name_46 = decl.name;
-                    if (ts.isBindingPattern(name_46)) {
-                        addChildrenRecursively(name_46);
+                    var name_47 = decl.name;
+                    if (ts.isBindingPattern(name_47)) {
+                        addChildrenRecursively(name_47);
                     }
                     else if (decl.initializer && isFunctionOrClassExpression(decl.initializer)) {
                         addChildrenRecursively(decl.initializer);
@@ -57372,9 +57934,9 @@ var ts;
                     addLeafNode(node);
                     break;
                 default:
-                    ts.forEach(node.jsDocComments, function (jsDocComment) {
-                        ts.forEach(jsDocComment.tags, function (tag) {
-                            if (tag.kind === 284) {
+                    ts.forEach(node.jsDoc, function (jsDoc) {
+                        ts.forEach(jsDoc.tags, function (tag) {
+                            if (tag.kind === 285) {
                                 addLeafNode(tag);
                             }
                         });
@@ -57490,7 +58052,7 @@ var ts;
                 case 185:
                 case 197:
                     return getFunctionOrClassName(node);
-                case 284:
+                case 285:
                     return getJSDocTypedefTagName(node);
                 default:
                     return undefined;
@@ -57530,7 +58092,7 @@ var ts;
                     return "()";
                 case 155:
                     return "[]";
-                case 284:
+                case 285:
                     return getJSDocTypedefTagName(node);
                 default:
                     return "<unknown>";
@@ -57577,7 +58139,7 @@ var ts;
                     case 230:
                     case 261:
                     case 228:
-                    case 284:
+                    case 285:
                         return true;
                     case 150:
                     case 149:
@@ -57790,24 +58352,24 @@ var ts;
                 switch (n.kind) {
                     case 204:
                         if (!ts.isFunctionBlock(n)) {
-                            var parent_20 = n.parent;
+                            var parent_19 = n.parent;
                             var openBrace = ts.findChildOfKind(n, 16, sourceFile);
                             var closeBrace = ts.findChildOfKind(n, 17, sourceFile);
-                            if (parent_20.kind === 209 ||
-                                parent_20.kind === 212 ||
-                                parent_20.kind === 213 ||
-                                parent_20.kind === 211 ||
-                                parent_20.kind === 208 ||
-                                parent_20.kind === 210 ||
-                                parent_20.kind === 217 ||
-                                parent_20.kind === 256) {
-                                addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                            if (parent_19.kind === 209 ||
+                                parent_19.kind === 212 ||
+                                parent_19.kind === 213 ||
+                                parent_19.kind === 211 ||
+                                parent_19.kind === 208 ||
+                                parent_19.kind === 210 ||
+                                parent_19.kind === 217 ||
+                                parent_19.kind === 256) {
+                                addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                 break;
                             }
-                            if (parent_20.kind === 221) {
-                                var tryStatement = parent_20;
+                            if (parent_19.kind === 221) {
+                                var tryStatement = parent_19;
                                 if (tryStatement.tryBlock === n) {
-                                    addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                                    addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                     break;
                                 }
                                 else if (tryStatement.finallyBlock === n) {
@@ -59421,8 +59983,8 @@ var ts;
                 if (declaration.kind !== 223 && declaration.kind !== 225) {
                     return false;
                 }
-                for (var parent_21 = declaration.parent; !ts.isFunctionBlock(parent_21); parent_21 = parent_21.parent) {
-                    if (parent_21.kind === 261 || parent_21.kind === 231) {
+                for (var parent_20 = declaration.parent; !ts.isFunctionBlock(parent_20); parent_20 = parent_20.parent) {
+                    if (parent_20.kind === 261 || parent_20.kind === 231) {
                         return false;
                     }
                 }
@@ -59909,7 +60471,7 @@ var ts;
             function RuleOperationContext() {
                 var funcs = [];
                 for (var _i = 0; _i < arguments.length; _i++) {
-                    funcs[_i - 0] = arguments[_i];
+                    funcs[_i] = arguments[_i];
                 }
                 this.customContextChecks = funcs;
             }
@@ -60116,9 +60678,9 @@ var ts;
             }
             Rules.prototype.getRuleName = function (rule) {
                 var o = this;
-                for (var name_47 in o) {
-                    if (o[name_47] === rule) {
-                        return name_47;
+                for (var name_48 in o) {
+                    if (o[name_48] === rule) {
+                        return name_48;
                     }
                 }
                 throw new Error("Unknown rule");
@@ -61297,11 +61859,23 @@ var ts;
                 else {
                     var tokenStart = sourceFile.getLineAndCharacterOfPosition(pos);
                     var startLinePosition = ts.getStartPositionOfLine(tokenStart.line, sourceFile);
-                    if (indentation !== tokenStart.character || indentationIsDifferent(indentationString, startLinePosition)) {
+                    if (indentation !== characterToColumn(startLinePosition, tokenStart.character) || indentationIsDifferent(indentationString, startLinePosition)) {
                         recordReplace(startLinePosition, tokenStart.character, indentationString);
                     }
                 }
             }
+            function characterToColumn(startLinePosition, characterInLine) {
+                var column = 0;
+                for (var i = 0; i < characterInLine; i++) {
+                    if (sourceFile.text.charCodeAt(startLinePosition + i) === 9) {
+                        column += options.tabSize - column % options.tabSize;
+                    }
+                    else {
+                        column++;
+                    }
+                }
+                return column;
+            }
             function indentationIsDifferent(indentationString, startLinePosition) {
                 return indentationString !== sourceFile.text.substr(startLinePosition, indentationString.length);
             }
@@ -62007,6 +62581,579 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    var codefix;
+    (function (codefix) {
+        var ModuleSpecifierComparison;
+        (function (ModuleSpecifierComparison) {
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Better"] = 0] = "Better";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Equal"] = 1] = "Equal";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Worse"] = 2] = "Worse";
+        })(ModuleSpecifierComparison || (ModuleSpecifierComparison = {}));
+        var ImportCodeActionMap = (function () {
+            function ImportCodeActionMap() {
+                this.symbolIdToActionMap = ts.createMap();
+            }
+            ImportCodeActionMap.prototype.addAction = function (symbolId, newAction) {
+                if (!newAction) {
+                    return;
+                }
+                if (!this.symbolIdToActionMap[symbolId]) {
+                    this.symbolIdToActionMap[symbolId] = [newAction];
+                    return;
+                }
+                if (newAction.kind === "CodeChange") {
+                    this.symbolIdToActionMap[symbolId].push(newAction);
+                    return;
+                }
+                var updatedNewImports = [];
+                for (var _i = 0, _a = this.symbolIdToActionMap[symbolId]; _i < _a.length; _i++) {
+                    var existingAction = _a[_i];
+                    if (existingAction.kind === "CodeChange") {
+                        updatedNewImports.push(existingAction);
+                        continue;
+                    }
+                    switch (this.compareModuleSpecifiers(existingAction.moduleSpecifier, newAction.moduleSpecifier)) {
+                        case ModuleSpecifierComparison.Better:
+                            if (newAction.kind === "NewImport") {
+                                return;
+                            }
+                        case ModuleSpecifierComparison.Equal:
+                            updatedNewImports.push(existingAction);
+                            break;
+                        case ModuleSpecifierComparison.Worse:
+                            continue;
+                    }
+                }
+                updatedNewImports.push(newAction);
+                this.symbolIdToActionMap[symbolId] = updatedNewImports;
+            };
+            ImportCodeActionMap.prototype.addActions = function (symbolId, newActions) {
+                for (var _i = 0, newActions_1 = newActions; _i < newActions_1.length; _i++) {
+                    var newAction = newActions_1[_i];
+                    this.addAction(symbolId, newAction);
+                }
+            };
+            ImportCodeActionMap.prototype.getAllActions = function () {
+                var result = [];
+                for (var symbolId in this.symbolIdToActionMap) {
+                    result = ts.concatenate(result, this.symbolIdToActionMap[symbolId]);
+                }
+                return result;
+            };
+            ImportCodeActionMap.prototype.compareModuleSpecifiers = function (moduleSpecifier1, moduleSpecifier2) {
+                if (moduleSpecifier1 === moduleSpecifier2) {
+                    return ModuleSpecifierComparison.Equal;
+                }
+                if (moduleSpecifier2.indexOf(moduleSpecifier1) === 0) {
+                    return ModuleSpecifierComparison.Better;
+                }
+                if (moduleSpecifier1.indexOf(moduleSpecifier2) === 0) {
+                    return ModuleSpecifierComparison.Worse;
+                }
+                if (ts.isExternalModuleNameRelative(moduleSpecifier1) && ts.isExternalModuleNameRelative(moduleSpecifier2)) {
+                    var regex = new RegExp(ts.directorySeparator, "g");
+                    var moduleSpecifier1LevelCount = (moduleSpecifier1.match(regex) || []).length;
+                    var moduleSpecifier2LevelCount = (moduleSpecifier2.match(regex) || []).length;
+                    return moduleSpecifier1LevelCount < moduleSpecifier2LevelCount
+                        ? ModuleSpecifierComparison.Better
+                        : moduleSpecifier1LevelCount === moduleSpecifier2LevelCount
+                            ? ModuleSpecifierComparison.Equal
+                            : ModuleSpecifierComparison.Worse;
+                }
+                return ModuleSpecifierComparison.Equal;
+            };
+            return ImportCodeActionMap;
+        }());
+        codefix.registerCodeFix({
+            errorCodes: [ts.Diagnostics.Cannot_find_name_0.code],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var checker = context.program.getTypeChecker();
+                var allSourceFiles = context.program.getSourceFiles();
+                var useCaseSensitiveFileNames = context.host.useCaseSensitiveFileNames ? context.host.useCaseSensitiveFileNames() : false;
+                var token = ts.getTokenAtPosition(sourceFile, context.span.start);
+                var name = token.getText();
+                var symbolIdActionMap = new ImportCodeActionMap();
+                var cachedImportDeclarations = ts.createMap();
+                var cachedNewImportInsertPosition;
+                var allPotentialModules = checker.getAmbientModules();
+                for (var _i = 0, allSourceFiles_1 = allSourceFiles; _i < allSourceFiles_1.length; _i++) {
+                    var otherSourceFile = allSourceFiles_1[_i];
+                    if (otherSourceFile !== sourceFile && ts.isExternalOrCommonJsModule(otherSourceFile)) {
+                        allPotentialModules.push(otherSourceFile.symbol);
+                    }
+                }
+                var currentTokenMeaning = ts.getMeaningFromLocation(token);
+                for (var _a = 0, allPotentialModules_1 = allPotentialModules; _a < allPotentialModules_1.length; _a++) {
+                    var moduleSymbol = allPotentialModules_1[_a];
+                    context.cancellationToken.throwIfCancellationRequested();
+                    var defaultExport = checker.tryGetMemberInModuleExports("default", moduleSymbol);
+                    if (defaultExport) {
+                        var localSymbol = ts.getLocalSymbolForExportDefault(defaultExport);
+                        if (localSymbol && localSymbol.name === name && checkSymbolHasMeaning(localSymbol, currentTokenMeaning)) {
+                            var symbolId = getUniqueSymbolId(localSymbol);
+                            symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol, true));
+                        }
+                    }
+                    var exportSymbolWithIdenticalName = checker.tryGetMemberInModuleExports(name, moduleSymbol);
+                    if (exportSymbolWithIdenticalName && checkSymbolHasMeaning(exportSymbolWithIdenticalName, currentTokenMeaning)) {
+                        var symbolId = getUniqueSymbolId(exportSymbolWithIdenticalName);
+                        symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol));
+                    }
+                }
+                return symbolIdActionMap.getAllActions();
+                function getImportDeclarations(moduleSymbol) {
+                    var moduleSymbolId = getUniqueSymbolId(moduleSymbol);
+                    if (cachedImportDeclarations[moduleSymbolId]) {
+                        return cachedImportDeclarations[moduleSymbolId];
+                    }
+                    var existingDeclarations = [];
+                    for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                        var importModuleSpecifier = _a[_i];
+                        var importSymbol = checker.getSymbolAtLocation(importModuleSpecifier);
+                        if (importSymbol === moduleSymbol) {
+                            existingDeclarations.push(getImportDeclaration(importModuleSpecifier));
+                        }
+                    }
+                    cachedImportDeclarations[moduleSymbolId] = existingDeclarations;
+                    return existingDeclarations;
+                    function getImportDeclaration(moduleSpecifier) {
+                        var node = moduleSpecifier;
+                        while (node) {
+                            if (node.kind === 235) {
+                                return node;
+                            }
+                            if (node.kind === 234) {
+                                return node;
+                            }
+                            node = node.parent;
+                        }
+                        return undefined;
+                    }
+                }
+                function getUniqueSymbolId(symbol) {
+                    if (symbol.flags & 8388608) {
+                        return ts.getSymbolId(checker.getAliasedSymbol(symbol));
+                    }
+                    return ts.getSymbolId(symbol);
+                }
+                function checkSymbolHasMeaning(symbol, meaning) {
+                    var declarations = symbol.getDeclarations();
+                    return declarations ? ts.some(symbol.declarations, function (decl) { return !!(ts.getMeaningFromDeclaration(decl) & meaning); }) : false;
+                }
+                function getCodeActionForImport(moduleSymbol, isDefault) {
+                    var existingDeclarations = getImportDeclarations(moduleSymbol);
+                    if (existingDeclarations.length > 0) {
+                        return getCodeActionsForExistingImport(existingDeclarations);
+                    }
+                    else {
+                        return [getCodeActionForNewImport()];
+                    }
+                    function getCodeActionsForExistingImport(declarations) {
+                        var actions = [];
+                        var namespaceImportDeclaration;
+                        var namedImportDeclaration;
+                        var existingModuleSpecifier;
+                        for (var _i = 0, declarations_11 = declarations; _i < declarations_11.length; _i++) {
+                            var declaration = declarations_11[_i];
+                            if (declaration.kind === 235) {
+                                var namedBindings = declaration.importClause && declaration.importClause.namedBindings;
+                                if (namedBindings && namedBindings.kind === 237) {
+                                    namespaceImportDeclaration = declaration;
+                                }
+                                else {
+                                    namedImportDeclaration = declaration;
+                                }
+                                existingModuleSpecifier = declaration.moduleSpecifier.getText();
+                            }
+                            else {
+                                namespaceImportDeclaration = declaration;
+                                existingModuleSpecifier = getModuleSpecifierFromImportEqualsDeclaration(declaration);
+                            }
+                        }
+                        if (namespaceImportDeclaration) {
+                            actions.push(getCodeActionForNamespaceImport(namespaceImportDeclaration));
+                        }
+                        if (namedImportDeclaration && namedImportDeclaration.importClause &&
+                            (namedImportDeclaration.importClause.name || namedImportDeclaration.importClause.namedBindings)) {
+                            var textChange = getTextChangeForImportClause(namedImportDeclaration.importClause);
+                            var moduleSpecifierWithoutQuotes = ts.stripQuotes(namedImportDeclaration.moduleSpecifier.getText());
+                            actions.push(createCodeAction(ts.Diagnostics.Add_0_to_existing_import_declaration_from_1, [name, moduleSpecifierWithoutQuotes], textChange.newText, textChange.span, sourceFile.fileName, "InsertingIntoExistingImport", moduleSpecifierWithoutQuotes));
+                        }
+                        else {
+                            actions.push(getCodeActionForNewImport(existingModuleSpecifier));
+                        }
+                        return actions;
+                        function getModuleSpecifierFromImportEqualsDeclaration(declaration) {
+                            if (declaration.moduleReference && declaration.moduleReference.kind === 245) {
+                                return declaration.moduleReference.expression.getText();
+                            }
+                            return declaration.moduleReference.getText();
+                        }
+                        function getTextChangeForImportClause(importClause) {
+                            var newImportText = isDefault ? "default as " + name : name;
+                            var importList = importClause.namedBindings;
+                            if (!importList && importClause.name) {
+                                var start = importClause.name.getEnd();
+                                return {
+                                    newText: ", { " + newImportText + " }",
+                                    span: { start: start, length: 0 }
+                                };
+                            }
+                            if (importList.elements.length === 0) {
+                                var start = importList.getStart();
+                                return {
+                                    newText: "{ " + newImportText + " }",
+                                    span: { start: start, length: importList.getEnd() - start }
+                                };
+                            }
+                            var insertPoint = importList.elements[importList.elements.length - 1].getEnd();
+                            var startLine = ts.getLineOfLocalPosition(sourceFile, importList.getStart());
+                            var endLine = ts.getLineOfLocalPosition(sourceFile, importList.getEnd());
+                            var oneImportPerLine = endLine - startLine > importList.elements.length;
+                            return {
+                                newText: "," + (oneImportPerLine ? context.newLineCharacter : " ") + newImportText,
+                                span: { start: insertPoint, length: 0 }
+                            };
+                        }
+                        function getCodeActionForNamespaceImport(declaration) {
+                            var namespacePrefix;
+                            if (declaration.kind === 235) {
+                                namespacePrefix = declaration.importClause.namedBindings.name.getText();
+                            }
+                            else {
+                                namespacePrefix = declaration.name.getText();
+                            }
+                            namespacePrefix = ts.stripQuotes(namespacePrefix);
+                            return createCodeAction(ts.Diagnostics.Change_0_to_1, [name, namespacePrefix + "." + name], namespacePrefix + ".", { start: token.getStart(), length: 0 }, sourceFile.fileName, "CodeChange");
+                        }
+                    }
+                    function getCodeActionForNewImport(moduleSpecifier) {
+                        if (!cachedNewImportInsertPosition) {
+                            var lastModuleSpecifierEnd = -1;
+                            for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                                var moduleSpecifier_1 = _a[_i];
+                                var end = moduleSpecifier_1.getEnd();
+                                if (!lastModuleSpecifierEnd || end > lastModuleSpecifierEnd) {
+                                    lastModuleSpecifierEnd = end;
+                                }
+                            }
+                            cachedNewImportInsertPosition = lastModuleSpecifierEnd > 0 ? sourceFile.getLineEndOfPosition(lastModuleSpecifierEnd) : sourceFile.getStart();
+                        }
+                        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+                        var moduleSpecifierWithoutQuotes = ts.stripQuotes(moduleSpecifier || getModuleSpecifierForNewImport());
+                        var importStatementText = isDefault
+                            ? "import " + name + " from \"" + moduleSpecifierWithoutQuotes + "\""
+                            : "import { " + name + " } from \"" + moduleSpecifierWithoutQuotes + "\"";
+                        var newText = cachedNewImportInsertPosition === sourceFile.getStart()
+                            ? importStatementText + ";" + context.newLineCharacter + context.newLineCharacter
+                            : "" + context.newLineCharacter + importStatementText + ";";
+                        return createCodeAction(ts.Diagnostics.Import_0_from_1, [name, "\"" + moduleSpecifierWithoutQuotes + "\""], newText, { start: cachedNewImportInsertPosition, length: 0 }, sourceFile.fileName, "NewImport", moduleSpecifierWithoutQuotes);
+                        function getModuleSpecifierForNewImport() {
+                            var fileName = sourceFile.path;
+                            var moduleFileName = moduleSymbol.valueDeclaration.getSourceFile().path;
+                            var sourceDirectory = ts.getDirectoryPath(fileName);
+                            var options = context.program.getCompilerOptions();
+                            return tryGetModuleNameFromAmbientModule() ||
+                                tryGetModuleNameFromBaseUrl() ||
+                                tryGetModuleNameFromRootDirs() ||
+                                tryGetModuleNameFromTypeRoots() ||
+                                tryGetModuleNameAsNodeModule() ||
+                                ts.removeFileExtension(getRelativePath(moduleFileName, sourceDirectory));
+                            function tryGetModuleNameFromAmbientModule() {
+                                if (moduleSymbol.valueDeclaration.kind !== 261) {
+                                    return moduleSymbol.name;
+                                }
+                            }
+                            function tryGetModuleNameFromBaseUrl() {
+                                if (!options.baseUrl) {
+                                    return undefined;
+                                }
+                                var normalizedBaseUrl = ts.toPath(options.baseUrl, ts.getDirectoryPath(options.baseUrl), getCanonicalFileName);
+                                var relativeName = tryRemoveParentDirectoryName(moduleFileName, normalizedBaseUrl);
+                                if (!relativeName) {
+                                    return undefined;
+                                }
+                                relativeName = removeExtensionAndIndexPostFix(relativeName);
+                                if (options.paths) {
+                                    for (var key in options.paths) {
+                                        for (var _i = 0, _a = options.paths[key]; _i < _a.length; _i++) {
+                                            var pattern = _a[_i];
+                                            var indexOfStar = pattern.indexOf("*");
+                                            if (indexOfStar === 0 && pattern.length === 1) {
+                                                continue;
+                                            }
+                                            else if (indexOfStar !== -1) {
+                                                var prefix = pattern.substr(0, indexOfStar);
+                                                var suffix = pattern.substr(indexOfStar + 1);
+                                                if (relativeName.length >= prefix.length + suffix.length &&
+                                                    ts.startsWith(relativeName, prefix) &&
+                                                    ts.endsWith(relativeName, suffix)) {
+                                                    var matchedStar = relativeName.substr(prefix.length, relativeName.length - suffix.length);
+                                                    return key.replace("\*", matchedStar);
+                                                }
+                                            }
+                                            else if (pattern === relativeName) {
+                                                return key;
+                                            }
+                                        }
+                                    }
+                                }
+                                return relativeName;
+                            }
+                            function tryGetModuleNameFromRootDirs() {
+                                if (options.rootDirs) {
+                                    var normalizedRootDirs = ts.map(options.rootDirs, function (rootDir) { return ts.toPath(rootDir, undefined, getCanonicalFileName); });
+                                    var normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, normalizedRootDirs);
+                                    var normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, normalizedRootDirs);
+                                    if (normalizedTargetPath !== undefined) {
+                                        var relativePath = normalizedSourcePath !== undefined ? getRelativePath(normalizedTargetPath, normalizedSourcePath) : normalizedTargetPath;
+                                        return ts.removeFileExtension(relativePath);
+                                    }
+                                }
+                                return undefined;
+                            }
+                            function tryGetModuleNameFromTypeRoots() {
+                                var typeRoots = ts.getEffectiveTypeRoots(options, context.host);
+                                if (typeRoots) {
+                                    var normalizedTypeRoots = ts.map(typeRoots, function (typeRoot) { return ts.toPath(typeRoot, undefined, getCanonicalFileName); });
+                                    for (var _i = 0, normalizedTypeRoots_1 = normalizedTypeRoots; _i < normalizedTypeRoots_1.length; _i++) {
+                                        var typeRoot = normalizedTypeRoots_1[_i];
+                                        if (ts.startsWith(moduleFileName, typeRoot)) {
+                                            var relativeFileName = moduleFileName.substring(typeRoot.length + 1);
+                                            return removeExtensionAndIndexPostFix(relativeFileName);
+                                        }
+                                    }
+                                }
+                            }
+                            function tryGetModuleNameAsNodeModule() {
+                                if (ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs) {
+                                    return undefined;
+                                }
+                                var indexOfNodeModules = moduleFileName.indexOf("node_modules");
+                                if (indexOfNodeModules < 0) {
+                                    return undefined;
+                                }
+                                var relativeFileName;
+                                if (sourceDirectory.indexOf(moduleFileName.substring(0, indexOfNodeModules - 1)) === 0) {
+                                    relativeFileName = moduleFileName.substring(indexOfNodeModules + 13);
+                                }
+                                else {
+                                    relativeFileName = getRelativePath(moduleFileName, sourceDirectory);
+                                }
+                                relativeFileName = ts.removeFileExtension(relativeFileName);
+                                if (ts.endsWith(relativeFileName, "/index")) {
+                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                }
+                                else {
+                                    try {
+                                        var moduleDirectory = ts.getDirectoryPath(moduleFileName);
+                                        var packageJsonContent = JSON.parse(context.host.readFile(ts.combinePaths(moduleDirectory, "package.json")));
+                                        if (packageJsonContent) {
+                                            var mainFile = packageJsonContent.main || packageJsonContent.typings;
+                                            if (mainFile) {
+                                                var mainExportFile = ts.toPath(mainFile, moduleDirectory, getCanonicalFileName);
+                                                if (ts.removeFileExtension(mainExportFile) === ts.removeFileExtension(moduleFileName)) {
+                                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                                }
+                                            }
+                                        }
+                                    }
+                                    catch (e) { }
+                                }
+                                return relativeFileName;
+                            }
+                        }
+                        function getPathRelativeToRootDirs(path, rootDirs) {
+                            for (var _i = 0, rootDirs_2 = rootDirs; _i < rootDirs_2.length; _i++) {
+                                var rootDir = rootDirs_2[_i];
+                                var relativeName = tryRemoveParentDirectoryName(path, rootDir);
+                                if (relativeName !== undefined) {
+                                    return relativeName;
+                                }
+                            }
+                            return undefined;
+                        }
+                        function removeExtensionAndIndexPostFix(fileName) {
+                            fileName = ts.removeFileExtension(fileName);
+                            if (ts.endsWith(fileName, "/index")) {
+                                fileName = fileName.substr(0, fileName.length - 6);
+                            }
+                            return fileName;
+                        }
+                        function getRelativePath(path, directoryPath) {
+                            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, false);
+                            return ts.moduleHasNonRelativeName(relativePath) ? "./" + relativePath : relativePath;
+                        }
+                        function tryRemoveParentDirectoryName(path, parentDirectory) {
+                            var index = path.indexOf(parentDirectory);
+                            if (index === 0) {
+                                return ts.endsWith(parentDirectory, ts.directorySeparator)
+                                    ? path.substring(parentDirectory.length)
+                                    : path.substring(parentDirectory.length + 1);
+                            }
+                            return undefined;
+                        }
+                    }
+                }
+                function createCodeAction(description, diagnosticArgs, newText, span, fileName, kind, moduleSpecifier) {
+                    return {
+                        description: ts.formatMessage.apply(undefined, [undefined, description].concat(diagnosticArgs)),
+                        changes: [{ fileName: fileName, textChanges: [{ newText: newText, span: span }] }],
+                        kind: kind,
+                        moduleSpecifier: moduleSpecifier
+                    };
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        codefix.registerCodeFix({
+            errorCodes: [
+                ts.Diagnostics._0_is_declared_but_never_used.code,
+                ts.Diagnostics.Property_0_is_declared_but_never_used.code
+            ],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var start = context.span.start;
+                var token = ts.getTokenAtPosition(sourceFile, start);
+                if (token.kind === 20) {
+                    token = ts.getTokenAtPosition(sourceFile, start + 1);
+                }
+                switch (token.kind) {
+                    case 70:
+                        switch (token.parent.kind) {
+                            case 223:
+                                switch (token.parent.parent.parent.kind) {
+                                    case 211:
+                                        var forStatement = token.parent.parent.parent;
+                                        var forInitializer = forStatement.initializer;
+                                        if (forInitializer.declarations.length === 1) {
+                                            return createCodeFix("", forInitializer.pos, forInitializer.end - forInitializer.pos);
+                                        }
+                                        else {
+                                            return removeSingleItem(forInitializer.declarations, token);
+                                        }
+                                    case 213:
+                                        var forOfStatement = token.parent.parent.parent;
+                                        if (forOfStatement.initializer.kind === 224) {
+                                            var forOfInitializer = forOfStatement.initializer;
+                                            return createCodeFix("{}", forOfInitializer.declarations[0].pos, forOfInitializer.declarations[0].end - forOfInitializer.declarations[0].pos);
+                                        }
+                                        break;
+                                    case 212:
+                                        return undefined;
+                                    case 256:
+                                        var catchClause = token.parent.parent;
+                                        var parameter = catchClause.variableDeclaration.getChildren()[0];
+                                        return createCodeFix("", parameter.pos, parameter.end - parameter.pos);
+                                    default:
+                                        var variableStatement = token.parent.parent.parent;
+                                        if (variableStatement.declarationList.declarations.length === 1) {
+                                            return createCodeFix("", variableStatement.pos, variableStatement.end - variableStatement.pos);
+                                        }
+                                        else {
+                                            var declarations = variableStatement.declarationList.declarations;
+                                            return removeSingleItem(declarations, token);
+                                        }
+                                }
+                            case 143:
+                                var typeParameters = token.parent.parent.typeParameters;
+                                if (typeParameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 2);
+                                }
+                                else {
+                                    return removeSingleItem(typeParameters, token);
+                                }
+                            case 144:
+                                var functionDeclaration = token.parent.parent;
+                                if (functionDeclaration.parameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                                }
+                                else {
+                                    return removeSingleItem(functionDeclaration.parameters, token);
+                                }
+                            case 234:
+                                var importEquals = findImportDeclaration(token);
+                                return createCodeFix("", importEquals.pos, importEquals.end - importEquals.pos);
+                            case 239:
+                                var namedImports = token.parent.parent;
+                                if (namedImports.elements.length === 1) {
+                                    var importSpec = findImportDeclaration(token);
+                                    return createCodeFix("", importSpec.pos, importSpec.end - importSpec.pos);
+                                }
+                                else {
+                                    return removeSingleItem(namedImports.elements, token);
+                                }
+                            case 236:
+                                var importClause = token.parent;
+                                if (!importClause.namedBindings) {
+                                    var importDecl = findImportDeclaration(importClause);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    return createCodeFix("", importClause.name.pos, importClause.namedBindings.pos - importClause.name.pos);
+                                }
+                            case 237:
+                                var namespaceImport = token.parent;
+                                if (namespaceImport.name == token && !namespaceImport.parent.name) {
+                                    var importDecl = findImportDeclaration(namespaceImport);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    var start_4 = namespaceImport.parent.name.end;
+                                    return createCodeFix("", start_4, namespaceImport.parent.namedBindings.end - start_4);
+                                }
+                        }
+                        break;
+                    case 147:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                    case 237:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                if (ts.isDeclarationName(token)) {
+                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                else if (ts.isLiteralComputedPropertyDeclarationName(token)) {
+                    return createCodeFix("", token.parent.parent.pos, token.parent.parent.end - token.parent.parent.pos);
+                }
+                else {
+                    return undefined;
+                }
+                function findImportDeclaration(token) {
+                    var importDecl = token;
+                    while (importDecl.kind != 235 && importDecl.parent) {
+                        importDecl = importDecl.parent;
+                    }
+                    return importDecl;
+                }
+                function createCodeFix(newText, start, length) {
+                    return [{
+                            description: ts.getLocaleSpecificMessage(ts.Diagnostics.Remove_unused_identifiers),
+                            changes: [{
+                                    fileName: sourceFile.fileName,
+                                    textChanges: [{ newText: newText, span: { start: start, length: length } }]
+                                }]
+                        }];
+                }
+                function removeSingleItem(elements, token) {
+                    if (elements[0] === token.parent) {
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos + 1);
+                    }
+                    else {
+                        return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 1);
+                    }
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
     ts.servicesVersion = "0.5";
     function createNode(kind, pos, end, parent) {
         var node = kind >= 141 ? new NodeObject(kind, pos, end) :
@@ -62067,11 +63214,11 @@ var ts;
             return pos;
         };
         NodeObject.prototype.createSyntaxList = function (nodes) {
-            var list = createNode(291, nodes.pos, nodes.end, this);
+            var list = createNode(292, nodes.pos, nodes.end, this);
             list._children = [];
             var pos = nodes.pos;
-            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
-                var node = nodes_5[_i];
+            for (var _i = 0, nodes_7 = nodes; _i < nodes_7.length; _i++) {
+                var node = nodes_7[_i];
                 if (pos < node.pos) {
                     pos = this.addSyntheticNodes(list._children, pos, node.pos);
                 }
@@ -62090,7 +63237,7 @@ var ts;
                 ts.scanner.setText((sourceFile || this.getSourceFile()).text);
                 children = [];
                 var pos_3 = this.pos;
-                var useJSDocScanner_1 = this.kind >= 278 && this.kind <= 290;
+                var useJSDocScanner_1 = this.kind >= 278 && this.kind <= 291;
                 var processNode = function (node) {
                     var isJSDocTagNode = ts.isJSDocTag(node);
                     if (!isJSDocTagNode && pos_3 < node.pos) {
@@ -62108,8 +63255,8 @@ var ts;
                     children.push(_this.createSyntaxList(nodes));
                     pos_3 = nodes.end;
                 };
-                if (this.jsDocComments) {
-                    for (var _i = 0, _a = this.jsDocComments; _i < _a.length; _i++) {
+                if (this.jsDoc) {
+                    for (var _i = 0, _a = this.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         processNode(jsDocComment);
                     }
@@ -62329,6 +63476,19 @@ var ts;
         SourceFileObject.prototype.getPositionOfLineAndCharacter = function (line, character) {
             return ts.getPositionOfLineAndCharacter(this, line, character);
         };
+        SourceFileObject.prototype.getLineEndOfPosition = function (pos) {
+            var line = this.getLineAndCharacterOfPosition(pos).line;
+            var lineStarts = this.getLineStarts();
+            var lastCharPos;
+            if (line + 1 >= lineStarts.length) {
+                lastCharPos = this.getEnd();
+            }
+            if (!lastCharPos) {
+                lastCharPos = lineStarts[line + 1] - 1;
+            }
+            var fullText = this.getFullText();
+            return fullText[lastCharPos] === "\n" && fullText[lastCharPos - 1] === "\r" ? lastCharPos - 1 : lastCharPos;
+        };
         SourceFileObject.prototype.getNamedDeclarations = function () {
             if (!this.namedDeclarations) {
                 this.namedDeclarations = this.computeNamedDeclarations();
@@ -62350,9 +63510,9 @@ var ts;
             }
             function getDeclarationName(declaration) {
                 if (declaration.name) {
-                    var result_6 = getTextOfIdentifierOrLiteral(declaration.name);
-                    if (result_6 !== undefined) {
-                        return result_6;
+                    var result_7 = getTextOfIdentifierOrLiteral(declaration.name);
+                    if (result_7 !== undefined) {
+                        return result_7;
                     }
                     if (declaration.name.kind === 142) {
                         var expr = declaration.name.expression;
@@ -63179,7 +64339,9 @@ var ts;
                     sourceFile: sourceFile,
                     span: span,
                     program: program,
-                    newLineCharacter: newLineChar
+                    newLineCharacter: newLineChar,
+                    host: host,
+                    cancellationToken: cancellationToken
                 };
                 var fixes = ts.codefix.getFixes(context);
                 if (fixes) {
@@ -63344,10 +64506,10 @@ var ts;
                     break;
                 default:
                     ts.forEachChild(node, walk);
-                    if (node.jsDocComments) {
-                        for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            ts.forEachChild(jsDocComment, walk);
+                    if (node.jsDoc) {
+                        for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            ts.forEachChild(jsDoc, walk);
                         }
                     }
             }
@@ -63544,7 +64706,7 @@ var ts;
                     this.trace = function (s) { return host.trace(s); };
                 }
                 this.resolveModuleName = function (moduleName, containingFile, compilerOptions, host) {
-                    var globalCache = _this.project.getTypingOptions().enableAutoDiscovery
+                    var globalCache = _this.project.getTypeAcquisition().enable
                         ? _this.project.projectService.typingsInstaller.globalTypingsCacheLocation
                         : undefined;
                     var primaryResult = ts.resolveModuleName(moduleName, containingFile, compilerOptions, host);
@@ -63576,15 +64738,15 @@ var ts;
                 var compilerOptions = this.getCompilationSettings();
                 var lastDeletedFileName = this.project.projectService.lastDeletedFile && this.project.projectService.lastDeletedFile.fileName;
                 for (var _i = 0, names_2 = names; _i < names_2.length; _i++) {
-                    var name_48 = names_2[_i];
-                    var resolution = newResolutions[name_48];
+                    var name_49 = names_2[_i];
+                    var resolution = newResolutions[name_49];
                     if (!resolution) {
-                        var existingResolution = currentResolutionsInFile && currentResolutionsInFile[name_48];
+                        var existingResolution = currentResolutionsInFile && currentResolutionsInFile[name_49];
                         if (moduleResolutionIsValid(existingResolution)) {
                             resolution = existingResolution;
                         }
                         else {
-                            newResolutions[name_48] = resolution = loader(name_48, containingFile, compilerOptions, this);
+                            newResolutions[name_49] = resolution = loader(name_49, containingFile, compilerOptions, this);
                         }
                         if (logChanges && this.filesWithChangedSetOfUnresolvedImports && !resolutionIsEqualTo(existingResolution, resolution)) {
                             this.filesWithChangedSetOfUnresolvedImports.push(path);
@@ -63746,8 +64908,8 @@ var ts;
             }
             return unique === 0;
         }
-        function typingOptionsChanged(opt1, opt2) {
-            return opt1.enableAutoDiscovery !== opt2.enableAutoDiscovery ||
+        function typeAcquisitionChanged(opt1, opt2) {
+            return opt1.enable !== opt2.enable ||
                 !setIsEqualTo(opt1.include, opt2.include) ||
                 !setIsEqualTo(opt1.exclude, opt2.exclude);
         }
@@ -63766,32 +64928,32 @@ var ts;
                 this.perProjectCache = ts.createMap();
             }
             TypingsCache.prototype.getTypingsForProject = function (project, unresolvedImports, forceRefresh) {
-                var typingOptions = project.getTypingOptions();
-                if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+                var typeAcquisition = project.getTypeAcquisition();
+                if (!typeAcquisition || !typeAcquisition.enable) {
                     return server.emptyArray;
                 }
                 var entry = this.perProjectCache[project.getProjectName()];
                 var result = entry ? entry.typings : server.emptyArray;
                 if (forceRefresh ||
                     !entry ||
-                    typingOptionsChanged(typingOptions, entry.typingOptions) ||
+                    typeAcquisitionChanged(typeAcquisition, entry.typeAcquisition) ||
                     compilerOptionsChanged(project.getCompilerOptions(), entry.compilerOptions) ||
                     unresolvedImportsChanged(unresolvedImports, entry.unresolvedImports)) {
                     this.perProjectCache[project.getProjectName()] = {
                         compilerOptions: project.getCompilerOptions(),
-                        typingOptions: typingOptions,
+                        typeAcquisition: typeAcquisition,
                         typings: result,
                         unresolvedImports: unresolvedImports,
                         poisoned: true
                     };
-                    this.installer.enqueueInstallTypingsRequest(project, typingOptions, unresolvedImports);
+                    this.installer.enqueueInstallTypingsRequest(project, typeAcquisition, unresolvedImports);
                 }
                 return result;
             };
-            TypingsCache.prototype.updateTypingsForProject = function (projectName, compilerOptions, typingOptions, unresolvedImports, newTypings) {
+            TypingsCache.prototype.updateTypingsForProject = function (projectName, compilerOptions, typeAcquisition, unresolvedImports, newTypings) {
                 this.perProjectCache[projectName] = {
                     compilerOptions: compilerOptions,
-                    typingOptions: typingOptions,
+                    typeAcquisition: typeAcquisition,
                     typings: server.toSortedReadonlyArray(newTypings),
                     unresolvedImports: unresolvedImports,
                     poisoned: false
@@ -64289,7 +65451,8 @@ var ts;
         }
         server.createNoSemanticFeaturesWrapper = createNoSemanticFeaturesWrapper;
         var Project = (function () {
-            function Project(projectKind, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) {
+            function Project(projectName, projectKind, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) {
+                this.projectName = projectName;
                 this.projectKind = projectKind;
                 this.projectService = projectService;
                 this.documentRegistry = documentRegistry;
@@ -64372,6 +65535,9 @@ var ts;
                 this.languageServiceEnabled = false;
                 this.projectService.onUpdateLanguageServiceStateForProject(this, false);
             };
+            Project.prototype.getProjectName = function () {
+                return this.projectName;
+            };
             Project.prototype.getSourceFile = function (path) {
                 if (!this.program) {
                     return undefined;
@@ -64529,9 +65695,9 @@ var ts;
                 }
                 var unresolvedImports;
                 if (file.resolvedModules) {
-                    for (var name_49 in file.resolvedModules) {
-                        if (!file.resolvedModules[name_49] && !ts.isExternalModuleNameRelative(name_49)) {
-                            var trimmed = name_49.trim();
+                    for (var name_50 in file.resolvedModules) {
+                        if (!file.resolvedModules[name_50] && !ts.isExternalModuleNameRelative(name_50)) {
+                            var trimmed = name_50.trim();
                             var i = trimmed.indexOf("/");
                             if (i !== -1 && trimmed.charCodeAt(0) === 64) {
                                 i = trimmed.indexOf("/", i + 1);
@@ -64753,15 +65919,10 @@ var ts;
         var InferredProject = (function (_super) {
             __extends(InferredProject, _super);
             function InferredProject(projectService, documentRegistry, compilerOptions) {
-                var _this = _super.call(this, ProjectKind.Inferred, projectService, documentRegistry, undefined, true, compilerOptions, false) || this;
+                var _this = _super.call(this, InferredProject.newName(), ProjectKind.Inferred, projectService, documentRegistry, undefined, true, compilerOptions, false) || this;
                 _this.directoriesWatchedForTsconfig = [];
-                _this.inferredProjectName = server.makeInferredProjectName(InferredProject.NextId);
-                InferredProject.NextId++;
                 return _this;
             }
-            InferredProject.prototype.getProjectName = function () {
-                return this.inferredProjectName;
-            };
             InferredProject.prototype.getProjectRootPath = function () {
                 if (this.projectService.useSingleInferredProject) {
                     return undefined;
@@ -64776,45 +65937,52 @@ var ts;
                     this.projectService.stopWatchingDirectory(directory);
                 }
             };
-            InferredProject.prototype.getTypingOptions = function () {
+            InferredProject.prototype.getTypeAcquisition = function () {
                 return {
-                    enableAutoDiscovery: allRootFilesAreJsOrDts(this),
+                    enable: allRootFilesAreJsOrDts(this),
                     include: [],
                     exclude: []
                 };
             };
             return InferredProject;
         }(Project));
-        InferredProject.NextId = 1;
+        InferredProject.newName = (function () {
+            var nextId = 1;
+            return function () {
+                var id = nextId;
+                nextId++;
+                return server.makeInferredProjectName(id);
+            };
+        })();
         server.InferredProject = InferredProject;
         var ConfiguredProject = (function (_super) {
             __extends(ConfiguredProject, _super);
             function ConfiguredProject(configFileName, projectService, documentRegistry, hasExplicitListOfFiles, compilerOptions, wildcardDirectories, languageServiceEnabled, compileOnSaveEnabled) {
-                var _this = _super.call(this, ProjectKind.Configured, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
-                _this.configFileName = configFileName;
+                var _this = _super.call(this, configFileName, ProjectKind.Configured, projectService, documentRegistry, hasExplicitListOfFiles, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
                 _this.wildcardDirectories = wildcardDirectories;
                 _this.compileOnSaveEnabled = compileOnSaveEnabled;
                 _this.openRefCount = 0;
+                _this.canonicalConfigFilePath = server.asNormalizedPath(projectService.toCanonicalFileName(configFileName));
                 return _this;
             }
+            ConfiguredProject.prototype.getConfigFilePath = function () {
+                return this.getProjectName();
+            };
             ConfiguredProject.prototype.getProjectRootPath = function () {
-                return ts.getDirectoryPath(this.configFileName);
+                return ts.getDirectoryPath(this.getConfigFilePath());
             };
             ConfiguredProject.prototype.setProjectErrors = function (projectErrors) {
                 this.projectErrors = projectErrors;
             };
-            ConfiguredProject.prototype.setTypingOptions = function (newTypingOptions) {
-                this.typingOptions = newTypingOptions;
-            };
-            ConfiguredProject.prototype.getTypingOptions = function () {
-                return this.typingOptions;
+            ConfiguredProject.prototype.setTypeAcquisition = function (newTypeAcquisition) {
+                this.typeAcquisition = newTypeAcquisition;
             };
-            ConfiguredProject.prototype.getProjectName = function () {
-                return this.configFileName;
+            ConfiguredProject.prototype.getTypeAcquisition = function () {
+                return this.typeAcquisition;
             };
             ConfiguredProject.prototype.watchConfigFile = function (callback) {
                 var _this = this;
-                this.projectFileWatcher = this.projectService.host.watchFile(this.configFileName, function (_) { return callback(_this); });
+                this.projectFileWatcher = this.projectService.host.watchFile(this.getConfigFilePath(), function (_) { return callback(_this); });
             };
             ConfiguredProject.prototype.watchTypeRoots = function (callback) {
                 var _this = this;
@@ -64832,7 +66000,7 @@ var ts;
                 if (this.directoryWatcher) {
                     return;
                 }
-                var directoryToWatch = ts.getDirectoryPath(this.configFileName);
+                var directoryToWatch = ts.getDirectoryPath(this.getConfigFilePath());
                 this.projectService.logger.info("Add recursive watcher for: " + directoryToWatch);
                 this.directoryWatcher = this.projectService.host.watchDirectory(directoryToWatch, function (path) { return callback(_this, path); }, true);
             };
@@ -64841,7 +66009,7 @@ var ts;
                 if (!this.wildcardDirectories) {
                     return;
                 }
-                var configDirectoryPath = ts.getDirectoryPath(this.configFileName);
+                var configDirectoryPath = ts.getDirectoryPath(this.getConfigFilePath());
                 this.directoriesWatchedForWildcards = ts.reduceProperties(this.wildcardDirectories, function (watchers, flag, directory) {
                     if (ts.comparePaths(configDirectoryPath, directory, ".", !_this.projectService.host.useCaseSensitiveFileNames) !== 0) {
                         var recursive = (flag & 1) !== 0;
@@ -64891,8 +66059,7 @@ var ts;
         var ExternalProject = (function (_super) {
             __extends(ExternalProject, _super);
             function ExternalProject(externalProjectName, projectService, documentRegistry, compilerOptions, languageServiceEnabled, compileOnSaveEnabled, projectFilePath) {
-                var _this = _super.call(this, ProjectKind.External, projectService, documentRegistry, true, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
-                _this.externalProjectName = externalProjectName;
+                var _this = _super.call(this, externalProjectName, ProjectKind.External, projectService, documentRegistry, true, languageServiceEnabled, compilerOptions, compileOnSaveEnabled) || this;
                 _this.compileOnSaveEnabled = compileOnSaveEnabled;
                 _this.projectFilePath = projectFilePath;
                 return _this;
@@ -64901,37 +66068,34 @@ var ts;
                 if (this.projectFilePath) {
                     return ts.getDirectoryPath(this.projectFilePath);
                 }
-                return ts.getDirectoryPath(ts.normalizeSlashes(this.externalProjectName));
+                return ts.getDirectoryPath(ts.normalizeSlashes(this.getProjectName()));
             };
-            ExternalProject.prototype.getTypingOptions = function () {
-                return this.typingOptions;
+            ExternalProject.prototype.getTypeAcquisition = function () {
+                return this.typeAcquisition;
             };
             ExternalProject.prototype.setProjectErrors = function (projectErrors) {
                 this.projectErrors = projectErrors;
             };
-            ExternalProject.prototype.setTypingOptions = function (newTypingOptions) {
-                if (!newTypingOptions) {
-                    newTypingOptions = {
-                        enableAutoDiscovery: allRootFilesAreJsOrDts(this),
+            ExternalProject.prototype.setTypeAcquisition = function (newTypeAcquisition) {
+                if (!newTypeAcquisition) {
+                    newTypeAcquisition = {
+                        enable: allRootFilesAreJsOrDts(this),
                         include: [],
                         exclude: []
                     };
                 }
                 else {
-                    if (newTypingOptions.enableAutoDiscovery === undefined) {
-                        newTypingOptions.enableAutoDiscovery = allRootFilesAreJsOrDts(this);
+                    if (newTypeAcquisition.enable === undefined) {
+                        newTypeAcquisition.enable = allRootFilesAreJsOrDts(this);
                     }
-                    if (!newTypingOptions.include) {
-                        newTypingOptions.include = [];
+                    if (!newTypeAcquisition.include) {
+                        newTypeAcquisition.include = [];
                     }
-                    if (!newTypingOptions.exclude) {
-                        newTypingOptions.exclude = [];
+                    if (!newTypeAcquisition.exclude) {
+                        newTypeAcquisition.exclude = [];
                     }
                 }
-                this.typingOptions = newTypingOptions;
-            };
-            ExternalProject.prototype.getProjectName = function () {
-                return this.externalProjectName;
+                this.typeAcquisition = newTypeAcquisition;
             };
             return ExternalProject;
         }(Project));
@@ -65123,7 +66287,7 @@ var ts;
                 }
                 switch (response.kind) {
                     case server.ActionSet:
-                        this.typingsCache.updateTypingsForProject(response.projectName, response.compilerOptions, response.typingOptions, response.unresolvedImports, response.typings);
+                        this.typingsCache.updateTypingsForProject(response.projectName, response.compilerOptions, response.typeAcquisition, response.unresolvedImports, response.typings);
                         break;
                     case server.ActionInvalidate:
                         this.typingsCache.deleteTypingsForProject(response.projectName);
@@ -65252,7 +66416,7 @@ var ts;
             ProjectService.prototype.onTypeRootFileChanged = function (project, fileName) {
                 var _this = this;
                 this.logger.info("Type root file " + fileName + " changed");
-                this.throttledOperations.schedule(project.configFileName + " * type root", 250, function () {
+                this.throttledOperations.schedule(project.getConfigFilePath() + " * type root", 250, function () {
                     project.updateTypes();
                     _this.updateConfiguredProject(project);
                     _this.refreshInferredProjects();
@@ -65264,11 +66428,11 @@ var ts;
                     return;
                 }
                 this.logger.info("Detected source file changes: " + fileName);
-                this.throttledOperations.schedule(project.configFileName, 250, function () { return _this.handleChangeInSourceFileForConfiguredProject(project, fileName); });
+                this.throttledOperations.schedule(project.getConfigFilePath(), 250, function () { return _this.handleChangeInSourceFileForConfiguredProject(project, fileName); });
             };
             ProjectService.prototype.handleChangeInSourceFileForConfiguredProject = function (project, triggerFile) {
                 var _this = this;
-                var _a = this.convertConfigFileContentToProjectOptions(project.configFileName), projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
+                var _a = this.convertConfigFileContentToProjectOptions(project.getConfigFilePath()), projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
                 this.reportConfigFileDiagnostics(project.getProjectName(), configFileErrors, triggerFile);
                 var newRootFiles = projectOptions.files.map((function (f) { return _this.getCanonicalFileName(f); }));
                 var currentRootFiles = project.getRootFiles().map((function (f) { return _this.getCanonicalFileName(f); }));
@@ -65279,8 +66443,10 @@ var ts;
                 }
             };
             ProjectService.prototype.onConfigChangedForConfiguredProject = function (project) {
-                this.logger.info("Config file changed: " + project.configFileName);
-                this.updateConfiguredProject(project);
+                var configFileName = project.getConfigFilePath();
+                this.logger.info("Config file changed: " + configFileName);
+                var configFileErrors = this.updateConfiguredProject(project);
+                this.reportConfigFileDiagnostics(configFileName, configFileErrors, configFileName);
                 this.refreshInferredProjects();
             };
             ProjectService.prototype.onConfigFileAddedForInferredProject = function (fileName) {
@@ -65466,7 +66632,13 @@ var ts;
                 }
             };
             ProjectService.prototype.findConfiguredProjectByProjectName = function (configFileName) {
-                return findProjectByName(configFileName, this.configuredProjects);
+                configFileName = server.asNormalizedPath(this.toCanonicalFileName(configFileName));
+                for (var _i = 0, _a = this.configuredProjects; _i < _a.length; _i++) {
+                    var proj = _a[_i];
+                    if (proj.canonicalConfigFilePath === configFileName) {
+                        return proj;
+                    }
+                }
             };
             ProjectService.prototype.findExternalProjectByProjectName = function (projectFileName) {
                 return findProjectByName(projectFileName, this.externalProjects);
@@ -65496,7 +66668,7 @@ var ts;
                     compilerOptions: parsedCommandLine.options,
                     configHasFilesProperty: config["files"] !== undefined,
                     wildcardDirectories: ts.createMap(parsedCommandLine.wildcardDirectories),
-                    typingOptions: parsedCommandLine.typingOptions,
+                    typeAcquisition: parsedCommandLine.typeAcquisition,
                     compileOnSave: parsedCommandLine.compileOnSave
                 };
                 return { success: true, projectOptions: projectOptions, configFileErrors: errors };
@@ -65519,10 +66691,10 @@ var ts;
                 }
                 return false;
             };
-            ProjectService.prototype.createAndAddExternalProject = function (projectFileName, files, options, typingOptions) {
+            ProjectService.prototype.createAndAddExternalProject = function (projectFileName, files, options, typeAcquisition) {
                 var compilerOptions = convertCompilerOptions(options);
                 var project = new server.ExternalProject(projectFileName, this, this.documentRegistry, compilerOptions, !this.exceededTotalSizeLimitForNonTsFiles(compilerOptions, files, externalFilePropertyReader), options.compileOnSave === undefined ? true : options.compileOnSave);
-                this.addFilesToProjectAndUpdateGraph(project, files, externalFilePropertyReader, undefined, typingOptions, undefined);
+                this.addFilesToProjectAndUpdateGraph(project, files, externalFilePropertyReader, undefined, typeAcquisition, undefined);
                 this.externalProjects.push(project);
                 return project;
             };
@@ -65539,7 +66711,7 @@ var ts;
                 var _this = this;
                 var sizeLimitExceeded = this.exceededTotalSizeLimitForNonTsFiles(projectOptions.compilerOptions, projectOptions.files, fileNamePropertyReader);
                 var project = new server.ConfiguredProject(configFileName, this, this.documentRegistry, projectOptions.configHasFilesProperty, projectOptions.compilerOptions, projectOptions.wildcardDirectories, !sizeLimitExceeded, projectOptions.compileOnSave === undefined ? false : projectOptions.compileOnSave);
-                this.addFilesToProjectAndUpdateGraph(project, projectOptions.files, fileNamePropertyReader, clientFileName, projectOptions.typingOptions, configFileErrors);
+                this.addFilesToProjectAndUpdateGraph(project, projectOptions.files, fileNamePropertyReader, clientFileName, projectOptions.typeAcquisition, configFileErrors);
                 project.watchConfigFile(function (project) { return _this.onConfigChangedForConfiguredProject(project); });
                 if (!sizeLimitExceeded) {
                     this.watchConfigDirectoryForProject(project, projectOptions);
@@ -65555,7 +66727,7 @@ var ts;
                     project.watchConfigDirectory(function (project, path) { return _this.onSourceFileInDirectoryChangedForConfiguredProject(project, path); });
                 }
             };
-            ProjectService.prototype.addFilesToProjectAndUpdateGraph = function (project, files, propertyReader, clientFileName, typingOptions, configFileErrors) {
+            ProjectService.prototype.addFilesToProjectAndUpdateGraph = function (project, files, propertyReader, clientFileName, typeAcquisition, configFileErrors) {
                 var errors;
                 for (var _i = 0, files_4 = files; _i < files_4.length; _i++) {
                     var f = files_4[_i];
@@ -65571,7 +66743,7 @@ var ts;
                     }
                 }
                 project.setProjectErrors(ts.concatenate(configFileErrors, errors));
-                project.setTypingOptions(typingOptions);
+                project.setTypeAcquisition(typeAcquisition);
                 project.updateGraph();
             };
             ProjectService.prototype.openConfigFile = function (configFileName, clientFileName) {
@@ -65586,7 +66758,7 @@ var ts;
                     errors: project.getProjectErrors()
                 };
             };
-            ProjectService.prototype.updateNonInferredProject = function (project, newUncheckedFiles, propertyReader, newOptions, newTypingOptions, compileOnSave, configFileErrors) {
+            ProjectService.prototype.updateNonInferredProject = function (project, newUncheckedFiles, propertyReader, newOptions, newTypeAcquisition, compileOnSave, configFileErrors) {
                 var oldRootScriptInfos = project.getRootScriptInfos();
                 var newRootScriptInfos = [];
                 var newRootScriptInfoMap = server.createNormalizedPathMap();
@@ -65648,7 +66820,7 @@ var ts;
                     }
                 }
                 project.setCompilerOptions(newOptions);
-                project.setTypingOptions(newTypingOptions);
+                project.setTypeAcquisition(newTypeAcquisition);
                 if (compileOnSave !== undefined) {
                     project.compileOnSaveEnabled = compileOnSave;
                 }
@@ -65656,12 +66828,12 @@ var ts;
                 project.updateGraph();
             };
             ProjectService.prototype.updateConfiguredProject = function (project) {
-                if (!this.host.fileExists(project.configFileName)) {
+                if (!this.host.fileExists(project.getConfigFilePath())) {
                     this.logger.info("Config file deleted");
                     this.removeProject(project);
                     return;
                 }
-                var _a = this.convertConfigFileContentToProjectOptions(project.configFileName), success = _a.success, projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
+                var _a = this.convertConfigFileContentToProjectOptions(project.getConfigFilePath()), success = _a.success, projectOptions = _a.projectOptions, configFileErrors = _a.configFileErrors;
                 if (!success) {
                     this.updateNonInferredProject(project, [], fileNamePropertyReader, {}, {}, false, configFileErrors);
                     return configFileErrors;
@@ -65669,7 +66841,7 @@ var ts;
                 if (this.exceededTotalSizeLimitForNonTsFiles(projectOptions.compilerOptions, projectOptions.files, fileNamePropertyReader)) {
                     project.setCompilerOptions(projectOptions.compilerOptions);
                     if (!project.languageServiceEnabled) {
-                        return;
+                        return configFileErrors;
                     }
                     project.disableLanguageService();
                     project.stopWatchingDirectory();
@@ -65679,8 +66851,9 @@ var ts;
                         project.enableLanguageService();
                     }
                     this.watchConfigDirectoryForProject(project, projectOptions);
-                    this.updateNonInferredProject(project, projectOptions.files, fileNamePropertyReader, projectOptions.compilerOptions, projectOptions.typingOptions, projectOptions.compileOnSave, configFileErrors);
+                    this.updateNonInferredProject(project, projectOptions.files, fileNamePropertyReader, projectOptions.compilerOptions, projectOptions.typeAcquisition, projectOptions.compileOnSave, configFileErrors);
                 }
+                return configFileErrors;
             };
             ProjectService.prototype.createInferredProjectWithRootFileIfNecessary = function (root) {
                 var _this = this;
@@ -65910,6 +67083,10 @@ var ts;
                 }
             };
             ProjectService.prototype.openExternalProject = function (proj) {
+                if (proj.typingOptions && !proj.typeAcquisition) {
+                    var typeAcquisition = ts.convertEnableAutoDiscoveryToEnable(proj.typingOptions);
+                    proj.typeAcquisition = typeAcquisition;
+                }
                 var tsConfigFiles;
                 var rootFiles = [];
                 for (var _i = 0, _a = proj.rootFiles; _i < _a.length; _i++) {
@@ -65931,7 +67108,7 @@ var ts;
                 var exisingConfigFiles;
                 if (externalProject) {
                     if (!tsConfigFiles) {
-                        this.updateNonInferredProject(externalProject, proj.rootFiles, externalFilePropertyReader, convertCompilerOptions(proj.options), proj.typingOptions, proj.options.compileOnSave, undefined);
+                        this.updateNonInferredProject(externalProject, proj.rootFiles, externalFilePropertyReader, convertCompilerOptions(proj.options), proj.typeAcquisition, proj.options.compileOnSave, undefined);
                         return;
                     }
                     this.closeExternalProject(proj.projectFileName, true);
@@ -65981,7 +67158,7 @@ var ts;
                 }
                 else {
                     delete this.externalProjectToConfiguredProjectMap[proj.projectFileName];
-                    this.createAndAddExternalProject(proj.projectFileName, rootFiles, proj.options, proj.typingOptions);
+                    this.createAndAddExternalProject(proj.projectFileName, rootFiles, proj.options, proj.typeAcquisition);
                 }
                 this.refreshInferredProjects();
             };
@@ -67059,9 +68236,9 @@ var ts;
                 if (simplifiedResult) {
                     return completions.entries.reduce(function (result, entry) {
                         if (completions.isMemberCompletion || (entry.name.toLowerCase().indexOf(prefix.toLowerCase()) === 0)) {
-                            var name_50 = entry.name, kind = entry.kind, kindModifiers = entry.kindModifiers, sortText = entry.sortText, replacementSpan = entry.replacementSpan;
+                            var name_51 = entry.name, kind = entry.kind, kindModifiers = entry.kindModifiers, sortText = entry.sortText, replacementSpan = entry.replacementSpan;
                             var convertedSpan = replacementSpan ? _this.decorateSpan(replacementSpan, scriptInfo) : undefined;
-                            result.push({ name: name_50, kind: kind, kindModifiers: kindModifiers, sortText: sortText, replacementSpan: convertedSpan });
+                            result.push({ name: name_51, kind: kind, kindModifiers: kindModifiers, sortText: sortText, replacementSpan: convertedSpan });
                         }
                         return result;
                     }, []).sort(function (a, b) { return ts.compareStrings(a.name, b.name); });
@@ -68902,7 +70079,7 @@ var ts;
                 if (result.error) {
                     return {
                         options: {},
-                        typingOptions: {},
+                        typeAcquisition: {},
                         files: [],
                         raw: {},
                         errors: [realizeDiagnostic(result.error, "\r\n")]
@@ -68912,7 +70089,7 @@ var ts;
                 var configFile = ts.parseJsonConfigFileContent(result.config, _this.host, ts.getDirectoryPath(normalizedFileName), {}, normalizedFileName);
                 return {
                     options: configFile.options,
-                    typingOptions: configFile.typingOptions,
+                    typeAcquisition: configFile.typeAcquisition,
                     files: configFile.fileNames,
                     raw: configFile.raw,
                     errors: realizeDiagnostics(configFile.errors, "\r\n")
@@ -68927,7 +70104,7 @@ var ts;
             var getCanonicalFileName = ts.createGetCanonicalFileName(false);
             return this.forwardJSONCall("discoverTypings()", function () {
                 var info = JSON.parse(discoverTypingsJson);
-                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typingOptions, info.unresolvedImports);
+                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typeAcquisition, info.unresolvedImports);
             });
         };
         return CoreServicesShimObject;
diff --git a/node_modules/typescript/lib/typescript.d.ts b/node_modules/typescript/lib/typescript.d.ts
index d25ce84b7..cec498e41 100644
--- a/node_modules/typescript/lib/typescript.d.ts
+++ b/node_modules/typescript/lib/typescript.d.ts
@@ -317,23 +317,25 @@ declare namespace ts {
         JSDocThisType = 277,
         JSDocComment = 278,
         JSDocTag = 279,
-        JSDocParameterTag = 280,
-        JSDocReturnTag = 281,
-        JSDocTypeTag = 282,
-        JSDocTemplateTag = 283,
-        JSDocTypedefTag = 284,
-        JSDocPropertyTag = 285,
-        JSDocTypeLiteral = 286,
-        JSDocLiteralType = 287,
-        JSDocNullKeyword = 288,
-        JSDocUndefinedKeyword = 289,
-        JSDocNeverKeyword = 290,
-        SyntaxList = 291,
-        NotEmittedStatement = 292,
-        PartiallyEmittedExpression = 293,
-        MergeDeclarationMarker = 294,
-        EndOfDeclarationMarker = 295,
-        Count = 296,
+        JSDocAugmentsTag = 280,
+        JSDocParameterTag = 281,
+        JSDocReturnTag = 282,
+        JSDocTypeTag = 283,
+        JSDocTemplateTag = 284,
+        JSDocTypedefTag = 285,
+        JSDocPropertyTag = 286,
+        JSDocTypeLiteral = 287,
+        JSDocLiteralType = 288,
+        JSDocNullKeyword = 289,
+        JSDocUndefinedKeyword = 290,
+        JSDocNeverKeyword = 291,
+        SyntaxList = 292,
+        NotEmittedStatement = 293,
+        PartiallyEmittedExpression = 294,
+        MergeDeclarationMarker = 295,
+        EndOfDeclarationMarker = 296,
+        RawExpression = 297,
+        Count = 298,
         FirstAssignment = 57,
         LastAssignment = 69,
         FirstCompoundAssignment = 58,
@@ -360,9 +362,9 @@ declare namespace ts {
         LastBinaryOperator = 69,
         FirstNode = 141,
         FirstJSDocNode = 262,
-        LastJSDocNode = 287,
+        LastJSDocNode = 288,
         FirstJSDocTagNode = 278,
-        LastJSDocTagNode = 290,
+        LastJSDocTagNode = 291,
     }
     enum NodeFlags {
         None = 0,
@@ -464,14 +466,14 @@ declare namespace ts {
         right: Identifier;
     }
     type EntityName = Identifier | QualifiedName;
-    type PropertyName = Identifier | LiteralExpression | ComputedPropertyName;
-    type DeclarationName = Identifier | LiteralExpression | ComputedPropertyName | BindingPattern;
+    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
+    type DeclarationName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName | BindingPattern;
     interface Declaration extends Node {
         _declarationBrand: any;
         name?: DeclarationName;
     }
     interface DeclarationStatement extends Declaration, Statement {
-        name?: Identifier | LiteralExpression;
+        name?: Identifier | StringLiteral | NumericLiteral;
     }
     interface ComputedPropertyName extends Node {
         kind: SyntaxKind.ComputedPropertyName;
@@ -573,18 +575,16 @@ declare namespace ts {
     interface PropertyLikeDeclaration extends Declaration {
         name: PropertyName;
     }
-    interface BindingPattern extends Node {
-        elements: NodeArray<BindingElement | ArrayBindingElement>;
-    }
-    interface ObjectBindingPattern extends BindingPattern {
+    interface ObjectBindingPattern extends Node {
         kind: SyntaxKind.ObjectBindingPattern;
         elements: NodeArray<BindingElement>;
     }
-    type ArrayBindingElement = BindingElement | OmittedExpression;
-    interface ArrayBindingPattern extends BindingPattern {
+    interface ArrayBindingPattern extends Node {
         kind: SyntaxKind.ArrayBindingPattern;
         elements: NodeArray<ArrayBindingElement>;
     }
+    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
+    type ArrayBindingElement = BindingElement | OmittedExpression;
     /**
      * Several node kinds share function-like features such as a signature,
      * a name, and a body. These nodes should extend FunctionLikeDeclaration.
@@ -809,17 +809,25 @@ declare namespace ts {
         operatorToken: BinaryOperatorToken;
         right: Expression;
     }
-    interface AssignmentExpression extends BinaryExpression {
+    type AssignmentOperatorToken = Token<AssignmentOperator>;
+    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
         left: LeftHandSideExpression;
-        operatorToken: Token<SyntaxKind.EqualsToken>;
+        operatorToken: TOperator;
     }
-    interface ObjectDestructuringAssignment extends AssignmentExpression {
+    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ObjectLiteralExpression;
     }
-    interface ArrayDestructuringAssignment extends AssignmentExpression {
+    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ArrayLiteralExpression;
     }
     type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
+    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
+    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
+    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Expression;
+    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
+    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
+    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
+    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
     interface ConditionalExpression extends Expression {
         kind: SyntaxKind.ConditionalExpression;
         condition: Expression;
@@ -1180,7 +1188,7 @@ declare namespace ts {
     type ModuleName = Identifier | StringLiteral;
     interface ModuleDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ModuleDeclaration;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral;
         body?: ModuleBlock | NamespaceDeclaration | JSDocNamespaceDeclaration | Identifier;
     }
     interface NamespaceDeclaration extends ModuleDeclaration {
@@ -1332,7 +1340,7 @@ declare namespace ts {
     type JSDocTypeReferencingNode = JSDocThisType | JSDocConstructorType | JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
     interface JSDocRecordMember extends PropertySignature {
         kind: SyntaxKind.JSDocRecordMember;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral | NumericLiteral;
         type?: JSDocType;
     }
     interface JSDoc extends Node {
@@ -1348,6 +1356,10 @@ declare namespace ts {
     interface JSDocUnknownTag extends JSDocTag {
         kind: SyntaxKind.JSDocTag;
     }
+    interface JSDocAugmentsTag extends JSDocTag {
+        kind: SyntaxKind.JSDocAugmentsTag;
+        typeExpression: JSDocTypeExpression;
+    }
     interface JSDocTemplateTag extends JSDocTag {
         kind: SyntaxKind.JSDocTemplateTag;
         typeParameters: NodeArray<TypeParameterDeclaration>;
@@ -1596,6 +1608,7 @@ declare namespace ts {
         getJsxIntrinsicTagNames(): Symbol[];
         isOptionalParameter(node: ParameterDeclaration): boolean;
         getAmbientModules(): Symbol[];
+        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
     }
     interface SymbolDisplayBuilder {
         buildTypeDisplay(type: Type, writer: SymbolWriter, enclosingDeclaration?: Node, flags?: TypeFormatFlags): void;
@@ -1761,7 +1774,7 @@ declare namespace ts {
         Literal = 480,
         StringOrNumberLiteral = 96,
         PossiblyFalsy = 7406,
-        StringLike = 34,
+        StringLike = 262178,
         NumberLike = 340,
         BooleanLike = 136,
         EnumLike = 272,
@@ -1845,7 +1858,7 @@ declare namespace ts {
     }
     interface IndexedAccessType extends Type {
         objectType: Type;
-        indexType: TypeParameter;
+        indexType: Type;
     }
     enum SignatureKind {
         Call = 0,
@@ -1962,12 +1975,13 @@ declare namespace ts {
         target?: ScriptTarget;
         traceResolution?: boolean;
         types?: string[];
-        /** Paths used to used to compute primary types search locations */
+        /** Paths used to compute primary types search locations */
         typeRoots?: string[];
         [option: string]: CompilerOptionsValue | undefined;
     }
-    interface TypingOptions {
+    interface TypeAcquisition {
         enableAutoDiscovery?: boolean;
+        enable?: boolean;
         include?: string[];
         exclude?: string[];
         [option: string]: string[] | boolean | undefined;
@@ -1977,7 +1991,7 @@ declare namespace ts {
         projectRootPath: string;
         safeListPath: string;
         packageNameToTypingLocation: Map<string>;
-        typingOptions: TypingOptions;
+        typeAcquisition: TypeAcquisition;
         compilerOptions: CompilerOptions;
         unresolvedImports: ReadonlyArray<string>;
     }
@@ -2025,7 +2039,7 @@ declare namespace ts {
     /** Either a parsed command line or a parsed tsconfig.json */
     interface ParsedCommandLine {
         options: CompilerOptions;
-        typingOptions?: TypingOptions;
+        typeAcquisition?: TypeAcquisition;
         fileNames: string[];
         raw?: any;
         errors: Diagnostic[];
@@ -2130,6 +2144,10 @@ declare namespace ts {
     }
 }
 declare namespace ts {
+    /** The version of the TypeScript compiler release */
+    const version = "2.2.0-dev.20161127";
+}
+declare namespace ts {
     type FileWatcherCallback = (fileName: string, removed?: boolean) => void;
     type DirectoryWatcherCallback = (fileName: string) => void;
     interface WatchedFile {
@@ -2260,9 +2278,19 @@ declare namespace ts {
      */
     function collapseTextChangeRangesAcrossMultipleVersions(changes: TextChangeRange[]): TextChangeRange;
     function getTypeParameterOwner(d: Declaration): Declaration;
-    function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean;
+    function isParameterPropertyDeclaration(node: Node): boolean;
     function getCombinedModifierFlags(node: Node): ModifierFlags;
     function getCombinedNodeFlags(node: Node): NodeFlags;
+    /**
+      * Checks to see if the locale is in the appropriate format,
+      * and if it is, attempts to set the appropriate language.
+      */
+    function validateLocaleAndSetLanguage(locale: string, sys: {
+        getExecutingFilePath(): string;
+        resolvePath(path: string): string;
+        fileExists(fileName: string): boolean;
+        readFile(fileName: string): string;
+    }, errors?: Diagnostic[]): void;
 }
 declare namespace ts {
     function createNode(kind: SyntaxKind, pos?: number, end?: number): Node;
@@ -2273,6 +2301,7 @@ declare namespace ts {
     function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks?: boolean): SourceFile;
 }
 declare namespace ts {
+    function moduleHasNonRelativeName(moduleName: string): boolean;
     function getEffectiveTypeRoots(options: CompilerOptions, host: {
         directoryExists?: (directoryName: string) => boolean;
         getCurrentDirectory?: () => string;
@@ -2297,8 +2326,6 @@ declare namespace ts {
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
 }
 declare namespace ts {
-    /** The version of the TypeScript compiler release */
-    const version = "2.2.0-dev.20161115";
     function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
     function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
@@ -2343,8 +2370,8 @@ declare namespace ts {
         options: CompilerOptions;
         errors: Diagnostic[];
     };
-    function convertTypingOptionsFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
-        options: TypingOptions;
+    function convertTypeAcquisitionFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
+        options: TypeAcquisition;
         errors: Diagnostic[];
     };
 }
@@ -2393,6 +2420,7 @@ declare namespace ts {
     }
     interface SourceFile {
         getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
+        getLineEndOfPosition(pos: number): number;
         getLineStarts(): number[];
         getPositionOfLineAndCharacter(line: number, character: number): number;
         update(newText: string, textChangeRange: TextChangeRange): SourceFile;
diff --git a/node_modules/typescript/lib/typescript.js b/node_modules/typescript/lib/typescript.js
index 4964aa75f..d4ad545cf 100644
--- a/node_modules/typescript/lib/typescript.js
+++ b/node_modules/typescript/lib/typescript.js
@@ -333,26 +333,28 @@ var ts;
         SyntaxKind[SyntaxKind["JSDocThisType"] = 277] = "JSDocThisType";
         SyntaxKind[SyntaxKind["JSDocComment"] = 278] = "JSDocComment";
         SyntaxKind[SyntaxKind["JSDocTag"] = 279] = "JSDocTag";
-        SyntaxKind[SyntaxKind["JSDocParameterTag"] = 280] = "JSDocParameterTag";
-        SyntaxKind[SyntaxKind["JSDocReturnTag"] = 281] = "JSDocReturnTag";
-        SyntaxKind[SyntaxKind["JSDocTypeTag"] = 282] = "JSDocTypeTag";
-        SyntaxKind[SyntaxKind["JSDocTemplateTag"] = 283] = "JSDocTemplateTag";
-        SyntaxKind[SyntaxKind["JSDocTypedefTag"] = 284] = "JSDocTypedefTag";
-        SyntaxKind[SyntaxKind["JSDocPropertyTag"] = 285] = "JSDocPropertyTag";
-        SyntaxKind[SyntaxKind["JSDocTypeLiteral"] = 286] = "JSDocTypeLiteral";
-        SyntaxKind[SyntaxKind["JSDocLiteralType"] = 287] = "JSDocLiteralType";
-        SyntaxKind[SyntaxKind["JSDocNullKeyword"] = 288] = "JSDocNullKeyword";
-        SyntaxKind[SyntaxKind["JSDocUndefinedKeyword"] = 289] = "JSDocUndefinedKeyword";
-        SyntaxKind[SyntaxKind["JSDocNeverKeyword"] = 290] = "JSDocNeverKeyword";
+        SyntaxKind[SyntaxKind["JSDocAugmentsTag"] = 280] = "JSDocAugmentsTag";
+        SyntaxKind[SyntaxKind["JSDocParameterTag"] = 281] = "JSDocParameterTag";
+        SyntaxKind[SyntaxKind["JSDocReturnTag"] = 282] = "JSDocReturnTag";
+        SyntaxKind[SyntaxKind["JSDocTypeTag"] = 283] = "JSDocTypeTag";
+        SyntaxKind[SyntaxKind["JSDocTemplateTag"] = 284] = "JSDocTemplateTag";
+        SyntaxKind[SyntaxKind["JSDocTypedefTag"] = 285] = "JSDocTypedefTag";
+        SyntaxKind[SyntaxKind["JSDocPropertyTag"] = 286] = "JSDocPropertyTag";
+        SyntaxKind[SyntaxKind["JSDocTypeLiteral"] = 287] = "JSDocTypeLiteral";
+        SyntaxKind[SyntaxKind["JSDocLiteralType"] = 288] = "JSDocLiteralType";
+        SyntaxKind[SyntaxKind["JSDocNullKeyword"] = 289] = "JSDocNullKeyword";
+        SyntaxKind[SyntaxKind["JSDocUndefinedKeyword"] = 290] = "JSDocUndefinedKeyword";
+        SyntaxKind[SyntaxKind["JSDocNeverKeyword"] = 291] = "JSDocNeverKeyword";
         // Synthesized list
-        SyntaxKind[SyntaxKind["SyntaxList"] = 291] = "SyntaxList";
+        SyntaxKind[SyntaxKind["SyntaxList"] = 292] = "SyntaxList";
         // Transformation nodes
-        SyntaxKind[SyntaxKind["NotEmittedStatement"] = 292] = "NotEmittedStatement";
-        SyntaxKind[SyntaxKind["PartiallyEmittedExpression"] = 293] = "PartiallyEmittedExpression";
-        SyntaxKind[SyntaxKind["MergeDeclarationMarker"] = 294] = "MergeDeclarationMarker";
-        SyntaxKind[SyntaxKind["EndOfDeclarationMarker"] = 295] = "EndOfDeclarationMarker";
+        SyntaxKind[SyntaxKind["NotEmittedStatement"] = 293] = "NotEmittedStatement";
+        SyntaxKind[SyntaxKind["PartiallyEmittedExpression"] = 294] = "PartiallyEmittedExpression";
+        SyntaxKind[SyntaxKind["MergeDeclarationMarker"] = 295] = "MergeDeclarationMarker";
+        SyntaxKind[SyntaxKind["EndOfDeclarationMarker"] = 296] = "EndOfDeclarationMarker";
+        SyntaxKind[SyntaxKind["RawExpression"] = 297] = "RawExpression";
         // Enum value count
-        SyntaxKind[SyntaxKind["Count"] = 296] = "Count";
+        SyntaxKind[SyntaxKind["Count"] = 298] = "Count";
         // Markers
         SyntaxKind[SyntaxKind["FirstAssignment"] = 57] = "FirstAssignment";
         SyntaxKind[SyntaxKind["LastAssignment"] = 69] = "LastAssignment";
@@ -380,9 +382,9 @@ var ts;
         SyntaxKind[SyntaxKind["LastBinaryOperator"] = 69] = "LastBinaryOperator";
         SyntaxKind[SyntaxKind["FirstNode"] = 141] = "FirstNode";
         SyntaxKind[SyntaxKind["FirstJSDocNode"] = 262] = "FirstJSDocNode";
-        SyntaxKind[SyntaxKind["LastJSDocNode"] = 287] = "LastJSDocNode";
+        SyntaxKind[SyntaxKind["LastJSDocNode"] = 288] = "LastJSDocNode";
         SyntaxKind[SyntaxKind["FirstJSDocTagNode"] = 278] = "FirstJSDocTagNode";
-        SyntaxKind[SyntaxKind["LastJSDocTagNode"] = 290] = "LastJSDocTagNode";
+        SyntaxKind[SyntaxKind["LastJSDocTagNode"] = 291] = "LastJSDocTagNode";
     })(SyntaxKind = ts.SyntaxKind || (ts.SyntaxKind = {}));
     var NodeFlags;
     (function (NodeFlags) {
@@ -710,7 +712,7 @@ var ts;
         TypeFlags[TypeFlags["Intrinsic"] = 16015] = "Intrinsic";
         /* @internal */
         TypeFlags[TypeFlags["Primitive"] = 8190] = "Primitive";
-        TypeFlags[TypeFlags["StringLike"] = 34] = "StringLike";
+        TypeFlags[TypeFlags["StringLike"] = 262178] = "StringLike";
         TypeFlags[TypeFlags["NumberLike"] = 340] = "NumberLike";
         TypeFlags[TypeFlags["BooleanLike"] = 136] = "BooleanLike";
         TypeFlags[TypeFlags["EnumLike"] = 272] = "EnumLike";
@@ -974,98 +976,95 @@ var ts;
         // - Flags used to indicate that a node or subtree contains syntax that requires transformation.
         TransformFlags[TransformFlags["TypeScript"] = 1] = "TypeScript";
         TransformFlags[TransformFlags["ContainsTypeScript"] = 2] = "ContainsTypeScript";
-        TransformFlags[TransformFlags["Jsx"] = 4] = "Jsx";
-        TransformFlags[TransformFlags["ContainsJsx"] = 8] = "ContainsJsx";
-        TransformFlags[TransformFlags["ESNext"] = 16] = "ESNext";
-        TransformFlags[TransformFlags["ContainsESNext"] = 32] = "ContainsESNext";
-        TransformFlags[TransformFlags["ES2017"] = 64] = "ES2017";
-        TransformFlags[TransformFlags["ContainsES2017"] = 128] = "ContainsES2017";
-        TransformFlags[TransformFlags["ES2016"] = 256] = "ES2016";
-        TransformFlags[TransformFlags["ContainsES2016"] = 512] = "ContainsES2016";
-        TransformFlags[TransformFlags["ES2015"] = 1024] = "ES2015";
-        TransformFlags[TransformFlags["ContainsES2015"] = 2048] = "ContainsES2015";
-        TransformFlags[TransformFlags["Generator"] = 4096] = "Generator";
-        TransformFlags[TransformFlags["ContainsGenerator"] = 8192] = "ContainsGenerator";
-        TransformFlags[TransformFlags["DestructuringAssignment"] = 16384] = "DestructuringAssignment";
-        TransformFlags[TransformFlags["ContainsDestructuringAssignment"] = 32768] = "ContainsDestructuringAssignment";
+        TransformFlags[TransformFlags["ContainsJsx"] = 4] = "ContainsJsx";
+        TransformFlags[TransformFlags["ContainsESNext"] = 8] = "ContainsESNext";
+        TransformFlags[TransformFlags["ContainsES2017"] = 16] = "ContainsES2017";
+        TransformFlags[TransformFlags["ContainsES2016"] = 32] = "ContainsES2016";
+        TransformFlags[TransformFlags["ES2015"] = 64] = "ES2015";
+        TransformFlags[TransformFlags["ContainsES2015"] = 128] = "ContainsES2015";
+        TransformFlags[TransformFlags["Generator"] = 256] = "Generator";
+        TransformFlags[TransformFlags["ContainsGenerator"] = 512] = "ContainsGenerator";
+        TransformFlags[TransformFlags["DestructuringAssignment"] = 1024] = "DestructuringAssignment";
+        TransformFlags[TransformFlags["ContainsDestructuringAssignment"] = 2048] = "ContainsDestructuringAssignment";
         // Markers
         // - Flags used to indicate that a subtree contains a specific transformation.
-        TransformFlags[TransformFlags["ContainsDecorators"] = 65536] = "ContainsDecorators";
-        TransformFlags[TransformFlags["ContainsPropertyInitializer"] = 131072] = "ContainsPropertyInitializer";
-        TransformFlags[TransformFlags["ContainsLexicalThis"] = 262144] = "ContainsLexicalThis";
-        TransformFlags[TransformFlags["ContainsCapturedLexicalThis"] = 524288] = "ContainsCapturedLexicalThis";
-        TransformFlags[TransformFlags["ContainsLexicalThisInComputedPropertyName"] = 1048576] = "ContainsLexicalThisInComputedPropertyName";
-        TransformFlags[TransformFlags["ContainsDefaultValueAssignments"] = 2097152] = "ContainsDefaultValueAssignments";
-        TransformFlags[TransformFlags["ContainsParameterPropertyAssignments"] = 4194304] = "ContainsParameterPropertyAssignments";
-        TransformFlags[TransformFlags["ContainsSpreadExpression"] = 8388608] = "ContainsSpreadExpression";
-        TransformFlags[TransformFlags["ContainsComputedPropertyName"] = 16777216] = "ContainsComputedPropertyName";
-        TransformFlags[TransformFlags["ContainsBlockScopedBinding"] = 33554432] = "ContainsBlockScopedBinding";
-        TransformFlags[TransformFlags["ContainsBindingPattern"] = 67108864] = "ContainsBindingPattern";
-        TransformFlags[TransformFlags["ContainsYield"] = 134217728] = "ContainsYield";
-        TransformFlags[TransformFlags["ContainsHoistedDeclarationOrCompletion"] = 268435456] = "ContainsHoistedDeclarationOrCompletion";
+        TransformFlags[TransformFlags["ContainsDecorators"] = 4096] = "ContainsDecorators";
+        TransformFlags[TransformFlags["ContainsPropertyInitializer"] = 8192] = "ContainsPropertyInitializer";
+        TransformFlags[TransformFlags["ContainsLexicalThis"] = 16384] = "ContainsLexicalThis";
+        TransformFlags[TransformFlags["ContainsCapturedLexicalThis"] = 32768] = "ContainsCapturedLexicalThis";
+        TransformFlags[TransformFlags["ContainsLexicalThisInComputedPropertyName"] = 65536] = "ContainsLexicalThisInComputedPropertyName";
+        TransformFlags[TransformFlags["ContainsDefaultValueAssignments"] = 131072] = "ContainsDefaultValueAssignments";
+        TransformFlags[TransformFlags["ContainsParameterPropertyAssignments"] = 262144] = "ContainsParameterPropertyAssignments";
+        TransformFlags[TransformFlags["ContainsSpread"] = 524288] = "ContainsSpread";
+        TransformFlags[TransformFlags["ContainsObjectSpread"] = 1048576] = "ContainsObjectSpread";
+        TransformFlags[TransformFlags["ContainsRest"] = 524288] = "ContainsRest";
+        TransformFlags[TransformFlags["ContainsObjectRest"] = 1048576] = "ContainsObjectRest";
+        TransformFlags[TransformFlags["ContainsComputedPropertyName"] = 2097152] = "ContainsComputedPropertyName";
+        TransformFlags[TransformFlags["ContainsBlockScopedBinding"] = 4194304] = "ContainsBlockScopedBinding";
+        TransformFlags[TransformFlags["ContainsBindingPattern"] = 8388608] = "ContainsBindingPattern";
+        TransformFlags[TransformFlags["ContainsYield"] = 16777216] = "ContainsYield";
+        TransformFlags[TransformFlags["ContainsHoistedDeclarationOrCompletion"] = 33554432] = "ContainsHoistedDeclarationOrCompletion";
         TransformFlags[TransformFlags["HasComputedFlags"] = 536870912] = "HasComputedFlags";
         // Assertions
         // - Bitmasks that are used to assert facts about the syntax of a node and its subtree.
         TransformFlags[TransformFlags["AssertTypeScript"] = 3] = "AssertTypeScript";
-        TransformFlags[TransformFlags["AssertJsx"] = 12] = "AssertJsx";
-        TransformFlags[TransformFlags["AssertESNext"] = 48] = "AssertESNext";
-        TransformFlags[TransformFlags["AssertES2017"] = 192] = "AssertES2017";
-        TransformFlags[TransformFlags["AssertES2016"] = 768] = "AssertES2016";
-        TransformFlags[TransformFlags["AssertES2015"] = 3072] = "AssertES2015";
-        TransformFlags[TransformFlags["AssertGenerator"] = 12288] = "AssertGenerator";
-        TransformFlags[TransformFlags["AssertDestructuringAssignment"] = 49152] = "AssertDestructuringAssignment";
+        TransformFlags[TransformFlags["AssertJsx"] = 4] = "AssertJsx";
+        TransformFlags[TransformFlags["AssertESNext"] = 8] = "AssertESNext";
+        TransformFlags[TransformFlags["AssertES2017"] = 16] = "AssertES2017";
+        TransformFlags[TransformFlags["AssertES2016"] = 32] = "AssertES2016";
+        TransformFlags[TransformFlags["AssertES2015"] = 192] = "AssertES2015";
+        TransformFlags[TransformFlags["AssertGenerator"] = 768] = "AssertGenerator";
+        TransformFlags[TransformFlags["AssertDestructuringAssignment"] = 3072] = "AssertDestructuringAssignment";
         // Scope Exclusions
         // - Bitmasks that exclude flags from propagating out of a specific context
         //   into the subtree flags of their container.
-        TransformFlags[TransformFlags["NodeExcludes"] = 536892757] = "NodeExcludes";
-        TransformFlags[TransformFlags["ArrowFunctionExcludes"] = 979719509] = "ArrowFunctionExcludes";
-        TransformFlags[TransformFlags["FunctionExcludes"] = 980243797] = "FunctionExcludes";
-        TransformFlags[TransformFlags["ConstructorExcludes"] = 975983957] = "ConstructorExcludes";
-        TransformFlags[TransformFlags["MethodOrAccessorExcludes"] = 975983957] = "MethodOrAccessorExcludes";
-        TransformFlags[TransformFlags["ClassExcludes"] = 559895893] = "ClassExcludes";
-        TransformFlags[TransformFlags["ModuleExcludes"] = 839734613] = "ModuleExcludes";
+        TransformFlags[TransformFlags["NodeExcludes"] = 536872257] = "NodeExcludes";
+        TransformFlags[TransformFlags["ArrowFunctionExcludes"] = 601249089] = "ArrowFunctionExcludes";
+        TransformFlags[TransformFlags["FunctionExcludes"] = 601281857] = "FunctionExcludes";
+        TransformFlags[TransformFlags["ConstructorExcludes"] = 601015617] = "ConstructorExcludes";
+        TransformFlags[TransformFlags["MethodOrAccessorExcludes"] = 601015617] = "MethodOrAccessorExcludes";
+        TransformFlags[TransformFlags["ClassExcludes"] = 539358529] = "ClassExcludes";
+        TransformFlags[TransformFlags["ModuleExcludes"] = 574674241] = "ModuleExcludes";
         TransformFlags[TransformFlags["TypeExcludes"] = -3] = "TypeExcludes";
-        TransformFlags[TransformFlags["ObjectLiteralExcludes"] = 554784085] = "ObjectLiteralExcludes";
-        TransformFlags[TransformFlags["ArrayLiteralOrCallOrNewExcludes"] = 545281365] = "ArrayLiteralOrCallOrNewExcludes";
-        TransformFlags[TransformFlags["VariableDeclarationListExcludes"] = 604001621] = "VariableDeclarationListExcludes";
-        TransformFlags[TransformFlags["ParameterExcludes"] = 604001621] = "ParameterExcludes";
+        TransformFlags[TransformFlags["ObjectLiteralExcludes"] = 540087617] = "ObjectLiteralExcludes";
+        TransformFlags[TransformFlags["ArrayLiteralOrCallOrNewExcludes"] = 537396545] = "ArrayLiteralOrCallOrNewExcludes";
+        TransformFlags[TransformFlags["VariableDeclarationListExcludes"] = 546309441] = "VariableDeclarationListExcludes";
+        TransformFlags[TransformFlags["ParameterExcludes"] = 536872257] = "ParameterExcludes";
+        TransformFlags[TransformFlags["CatchClauseExcludes"] = 537920833] = "CatchClauseExcludes";
+        TransformFlags[TransformFlags["BindingPatternExcludes"] = 537396545] = "BindingPatternExcludes";
         // Masks
         // - Additional bitmasks
-        TransformFlags[TransformFlags["TypeScriptClassSyntaxMask"] = 4390912] = "TypeScriptClassSyntaxMask";
-        TransformFlags[TransformFlags["ES2015FunctionSyntaxMask"] = 2621440] = "ES2015FunctionSyntaxMask";
+        TransformFlags[TransformFlags["TypeScriptClassSyntaxMask"] = 274432] = "TypeScriptClassSyntaxMask";
+        TransformFlags[TransformFlags["ES2015FunctionSyntaxMask"] = 163840] = "ES2015FunctionSyntaxMask";
     })(TransformFlags = ts.TransformFlags || (ts.TransformFlags = {}));
     /* @internal */
     var EmitFlags;
     (function (EmitFlags) {
-        EmitFlags[EmitFlags["EmitEmitHelpers"] = 1] = "EmitEmitHelpers";
-        EmitFlags[EmitFlags["EmitExportStar"] = 2] = "EmitExportStar";
-        EmitFlags[EmitFlags["EmitSuperHelper"] = 4] = "EmitSuperHelper";
-        EmitFlags[EmitFlags["EmitAdvancedSuperHelper"] = 8] = "EmitAdvancedSuperHelper";
-        EmitFlags[EmitFlags["UMDDefine"] = 16] = "UMDDefine";
-        EmitFlags[EmitFlags["SingleLine"] = 32] = "SingleLine";
-        EmitFlags[EmitFlags["AdviseOnEmitNode"] = 64] = "AdviseOnEmitNode";
-        EmitFlags[EmitFlags["NoSubstitution"] = 128] = "NoSubstitution";
-        EmitFlags[EmitFlags["CapturesThis"] = 256] = "CapturesThis";
-        EmitFlags[EmitFlags["NoLeadingSourceMap"] = 512] = "NoLeadingSourceMap";
-        EmitFlags[EmitFlags["NoTrailingSourceMap"] = 1024] = "NoTrailingSourceMap";
-        EmitFlags[EmitFlags["NoSourceMap"] = 1536] = "NoSourceMap";
-        EmitFlags[EmitFlags["NoNestedSourceMaps"] = 2048] = "NoNestedSourceMaps";
-        EmitFlags[EmitFlags["NoTokenLeadingSourceMaps"] = 4096] = "NoTokenLeadingSourceMaps";
-        EmitFlags[EmitFlags["NoTokenTrailingSourceMaps"] = 8192] = "NoTokenTrailingSourceMaps";
-        EmitFlags[EmitFlags["NoTokenSourceMaps"] = 12288] = "NoTokenSourceMaps";
-        EmitFlags[EmitFlags["NoLeadingComments"] = 16384] = "NoLeadingComments";
-        EmitFlags[EmitFlags["NoTrailingComments"] = 32768] = "NoTrailingComments";
-        EmitFlags[EmitFlags["NoComments"] = 49152] = "NoComments";
-        EmitFlags[EmitFlags["NoNestedComments"] = 65536] = "NoNestedComments";
-        EmitFlags[EmitFlags["ExportName"] = 131072] = "ExportName";
-        EmitFlags[EmitFlags["LocalName"] = 262144] = "LocalName";
-        EmitFlags[EmitFlags["Indented"] = 524288] = "Indented";
-        EmitFlags[EmitFlags["NoIndentation"] = 1048576] = "NoIndentation";
-        EmitFlags[EmitFlags["AsyncFunctionBody"] = 2097152] = "AsyncFunctionBody";
-        EmitFlags[EmitFlags["ReuseTempVariableScope"] = 4194304] = "ReuseTempVariableScope";
-        EmitFlags[EmitFlags["CustomPrologue"] = 8388608] = "CustomPrologue";
-        EmitFlags[EmitFlags["NoHoisting"] = 16777216] = "NoHoisting";
-        EmitFlags[EmitFlags["HasEndOfDeclarationMarker"] = 33554432] = "HasEndOfDeclarationMarker";
+        EmitFlags[EmitFlags["SingleLine"] = 1] = "SingleLine";
+        EmitFlags[EmitFlags["AdviseOnEmitNode"] = 2] = "AdviseOnEmitNode";
+        EmitFlags[EmitFlags["NoSubstitution"] = 4] = "NoSubstitution";
+        EmitFlags[EmitFlags["CapturesThis"] = 8] = "CapturesThis";
+        EmitFlags[EmitFlags["NoLeadingSourceMap"] = 16] = "NoLeadingSourceMap";
+        EmitFlags[EmitFlags["NoTrailingSourceMap"] = 32] = "NoTrailingSourceMap";
+        EmitFlags[EmitFlags["NoSourceMap"] = 48] = "NoSourceMap";
+        EmitFlags[EmitFlags["NoNestedSourceMaps"] = 64] = "NoNestedSourceMaps";
+        EmitFlags[EmitFlags["NoTokenLeadingSourceMaps"] = 128] = "NoTokenLeadingSourceMaps";
+        EmitFlags[EmitFlags["NoTokenTrailingSourceMaps"] = 256] = "NoTokenTrailingSourceMaps";
+        EmitFlags[EmitFlags["NoTokenSourceMaps"] = 384] = "NoTokenSourceMaps";
+        EmitFlags[EmitFlags["NoLeadingComments"] = 512] = "NoLeadingComments";
+        EmitFlags[EmitFlags["NoTrailingComments"] = 1024] = "NoTrailingComments";
+        EmitFlags[EmitFlags["NoComments"] = 1536] = "NoComments";
+        EmitFlags[EmitFlags["NoNestedComments"] = 2048] = "NoNestedComments";
+        EmitFlags[EmitFlags["HelperName"] = 4096] = "HelperName";
+        EmitFlags[EmitFlags["ExportName"] = 8192] = "ExportName";
+        EmitFlags[EmitFlags["LocalName"] = 16384] = "LocalName";
+        EmitFlags[EmitFlags["Indented"] = 32768] = "Indented";
+        EmitFlags[EmitFlags["NoIndentation"] = 65536] = "NoIndentation";
+        EmitFlags[EmitFlags["AsyncFunctionBody"] = 131072] = "AsyncFunctionBody";
+        EmitFlags[EmitFlags["ReuseTempVariableScope"] = 262144] = "ReuseTempVariableScope";
+        EmitFlags[EmitFlags["CustomPrologue"] = 524288] = "CustomPrologue";
+        EmitFlags[EmitFlags["NoHoisting"] = 1048576] = "NoHoisting";
+        EmitFlags[EmitFlags["HasEndOfDeclarationMarker"] = 2097152] = "HasEndOfDeclarationMarker";
     })(EmitFlags = ts.EmitFlags || (ts.EmitFlags = {}));
     /* @internal */
     var EmitContext;
@@ -1172,9 +1171,13 @@ var ts;
 })(ts || (ts = {}));
 /// <reference path="types.ts"/>
 /// <reference path="performance.ts" />
-/* @internal */
 var ts;
 (function (ts) {
+    /** The version of the TypeScript compiler release */
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+/* @internal */
+(function (ts) {
     /**
      * Ternary values are defined such that
      * x & y is False if either x or y is False.
@@ -1727,7 +1730,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -1750,6 +1753,17 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    /**
+     * Stable sort of an array. Elements equal to each other maintain their relative position in the array.
+     */
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; }) // create array of indices
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); }) // sort indices by value then position
+            .map(function (i) { return array[i]; }); // get sorted array
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -1968,6 +1982,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -2483,6 +2506,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 /* ES2015 */ ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     /* @internal */
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
@@ -3140,6 +3171,17 @@ var ts;
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
     /** Remove an item from an array, moving everything to its right one space left. */
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
+    /** Remove an item by index from an array, moving everything to its right one space left. */
     function orderedRemoveItemAt(array, index) {
         // This seems to be faster than either `array.splice(i, 1)` or `array.copyWithin(i, i+ 1)`.
         for (var i = index; i < array.length - 1; i++) {
@@ -4244,7 +4286,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -4309,7 +4351,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -4380,6 +4423,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -4594,9 +4638,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -4608,6 +4652,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 /// <reference path="core.ts"/>
@@ -6552,7 +6599,7 @@ var ts;
         return !nodeIsMissing(node);
     }
     ts.nodeIsPresent = nodeIsPresent;
-    function getTokenPosOfNode(node, sourceFile, includeJsDocComment) {
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
         // With nodes that have no width (i.e. 'Missing' nodes), we actually *don't*
         // want to skip trivia because this will launch us forward to the next token.
         if (nodeIsMissing(node)) {
@@ -6561,25 +6608,25 @@ var ts;
         if (isJSDocNode(node)) {
             return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, /*stopAfterLineBreak*/ false, /*stopAtComments*/ true);
         }
-        if (includeJsDocComment && node.jsDocComments && node.jsDocComments.length > 0) {
-            return getTokenPosOfNode(node.jsDocComments[0]);
+        if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
+            return getTokenPosOfNode(node.jsDoc[0]);
         }
         // For a syntax list, it is possible that one of its children has JSDocComment nodes, while
         // the syntax list itself considers them as normal trivia. Therefore if we simply skip
         // trivia for the list, we may have skipped the JSDocComment as well. So we should process its
         // first child to determine the actual position of its first token.
-        if (node.kind === 291 /* SyntaxList */ && node._children.length > 0) {
-            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDocComment);
+        if (node.kind === 292 /* SyntaxList */ && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
         }
         return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
     }
     ts.getTokenPosOfNode = getTokenPosOfNode;
     function isJSDocNode(node) {
-        return node.kind >= 262 /* FirstJSDocNode */ && node.kind <= 287 /* LastJSDocNode */;
+        return node.kind >= 262 /* FirstJSDocNode */ && node.kind <= 288 /* LastJSDocNode */;
     }
     ts.isJSDocNode = isJSDocNode;
     function isJSDocTag(node) {
-        return node.kind >= 278 /* FirstJSDocTagNode */ && node.kind <= 290 /* LastJSDocTagNode */;
+        return node.kind >= 278 /* FirstJSDocTagNode */ && node.kind <= 291 /* LastJSDocTagNode */;
     }
     ts.isJSDocTag = isJSDocTag;
     function getNonDecoratorTokenPosOfNode(node, sourceFile) {
@@ -6778,7 +6825,7 @@ var ts;
             case 8 /* NumericLiteral */:
                 return name.text;
             case 142 /* ComputedPropertyName */:
-                if (isStringOrNumericLiteral(name.expression.kind)) {
+                if (isStringOrNumericLiteral(name.expression)) {
                     return name.expression.text;
                 }
         }
@@ -6907,7 +6954,8 @@ var ts;
     }
     ts.isSuperCall = isSuperCall;
     function isPrologueDirective(node) {
-        return node.kind === 207 /* ExpressionStatement */ && node.expression.kind === 9 /* StringLiteral */;
+        return node.kind === 207 /* ExpressionStatement */
+            && node.expression.kind === 9 /* StringLiteral */;
     }
     ts.isPrologueDirective = isPrologueDirective;
     function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
@@ -6918,26 +6966,21 @@ var ts;
         return ts.getLeadingCommentRanges(text, node.pos);
     }
     ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
-    function getJsDocComments(node, sourceFileOfNode) {
-        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
-    }
-    ts.getJsDocComments = getJsDocComments;
-    function getJsDocCommentsFromText(node, text) {
+    function getJSDocCommentRanges(node, text) {
         var commentRanges = (node.kind === 144 /* Parameter */ ||
             node.kind === 143 /* TypeParameter */ ||
             node.kind === 184 /* FunctionExpression */ ||
             node.kind === 185 /* ArrowFunction */) ?
             ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
             getLeadingCommentRangesOfNodeFromText(node, text);
-        return ts.filter(commentRanges, isJsDocComment);
-        function isJsDocComment(comment) {
-            // True if the comment starts with '/**' but not if it is '/**/'
+        // True if the comment starts with '/**' but not if it is '/**/'
+        return ts.filter(commentRanges, function (comment) {
             return text.charCodeAt(comment.pos + 1) === 42 /* asterisk */ &&
                 text.charCodeAt(comment.pos + 2) === 42 /* asterisk */ &&
                 text.charCodeAt(comment.pos + 3) !== 47 /* slash */;
-        }
+        });
     }
-    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
     ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
@@ -7520,6 +7563,7 @@ var ts;
                     case 145 /* Decorator */:
                     case 252 /* JsxExpression */:
                     case 251 /* JsxSpreadAttribute */:
+                    case 259 /* SpreadAssignment */:
                         return true;
                     case 199 /* ExpressionWithTypeArguments */:
                         return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
@@ -7690,127 +7734,98 @@ var ts;
             node.parameters[0].type.kind === 276 /* JSDocConstructorType */;
     }
     ts.isJSDocConstructSignature = isJSDocConstructSignature;
-    function getJSDocTag(node, kind, checkParentVariableStatement) {
-        if (!node) {
-            return undefined;
-        }
-        var jsDocTags = getJSDocTags(node, checkParentVariableStatement);
-        if (!jsDocTags) {
-            return undefined;
-        }
-        for (var _i = 0, jsDocTags_1 = jsDocTags; _i < jsDocTags_1.length; _i++) {
-            var tag = jsDocTags_1[_i];
-            if (tag.kind === kind) {
-                return tag;
-            }
-        }
+    function getCommentsFromJSDoc(node) {
+        return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
     }
-    function append(previous, additional) {
-        if (additional) {
-            if (!previous) {
-                previous = [];
-            }
-            for (var _i = 0, additional_1 = additional; _i < additional_1.length; _i++) {
-                var x = additional_1[_i];
-                previous.push(x);
-            }
-        }
-        return previous;
-    }
-    function getJSDocComments(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) { return ts.map(docs, function (doc) { return doc.comment; }); }, function (tags) { return ts.map(tags, function (tag) { return tag.comment; }); });
-    }
-    ts.getJSDocComments = getJSDocComments;
-    function getJSDocTags(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) {
+    ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
+    function getJSDocTags(node, kind) {
+        var docs = getJSDocs(node);
+        if (docs) {
             var result = [];
             for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                 var doc = docs_1[_i];
-                if (doc.tags) {
-                    result.push.apply(result, doc.tags);
+                if (doc.kind === 281 /* JSDocParameterTag */) {
+                    if (doc.kind === kind) {
+                        result.push(doc);
+                    }
+                }
+                else {
+                    result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
                 }
             }
             return result;
-        }, function (tags) { return tags; });
-    }
-    function getJSDocs(node, checkParentVariableStatement, getDocs, getTags) {
-        // TODO: Get rid of getJsDocComments and friends (note the lowercase 's' in Js)
-        // TODO: A lot of this work should be cached, maybe. I guess it's only used in services right now...
-        var result = undefined;
-        // prepend documentation from parent sources
-        if (checkParentVariableStatement) {
+        }
+    }
+    function getFirstJSDocTag(node, kind) {
+        return node && ts.firstOrUndefined(getJSDocTags(node, kind));
+    }
+    function getJSDocs(node) {
+        var cache = node.jsDocCache;
+        if (!cache) {
+            getJSDocsWorker(node);
+            node.jsDocCache = cache;
+        }
+        return cache;
+        function getJSDocsWorker(node) {
+            var parent = node.parent;
             // Try to recognize this pattern when node is initializer of variable declaration and JSDoc comments are on containing variable statement.
             // /**
             //   * @param {number} name
             //   * @returns {number}
             //   */
             // var x = function(name) { return name.length; }
-            var isInitializerOfVariableDeclarationInStatement = isVariableLike(node.parent) &&
-                (node.parent).initializer === node &&
-                node.parent.parent.parent.kind === 205 /* VariableStatement */;
+            var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
+                parent.initializer === node &&
+                parent.parent.parent.kind === 205 /* VariableStatement */;
             var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
-                node.parent.parent.kind === 205 /* VariableStatement */;
-            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent :
-                isVariableOfVariableDeclarationStatement ? node.parent.parent :
+                parent.parent.kind === 205 /* VariableStatement */;
+            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
+                isVariableOfVariableDeclarationStatement ? parent.parent :
                     undefined;
             if (variableStatementNode) {
-                result = append(result, getJSDocs(variableStatementNode, checkParentVariableStatement, getDocs, getTags));
-            }
-            if (node.kind === 230 /* ModuleDeclaration */ &&
-                node.parent && node.parent.kind === 230 /* ModuleDeclaration */) {
-                result = append(result, getJSDocs(node.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(variableStatementNode);
             }
             // Also recognize when the node is the RHS of an assignment expression
-            var parent_4 = node.parent;
-            var isSourceOfAssignmentExpressionStatement = parent_4 && parent_4.parent &&
-                parent_4.kind === 192 /* BinaryExpression */ &&
-                parent_4.operatorToken.kind === 57 /* EqualsToken */ &&
-                parent_4.parent.kind === 207 /* ExpressionStatement */;
+            var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
+                parent.kind === 192 /* BinaryExpression */ &&
+                parent.operatorToken.kind === 57 /* EqualsToken */ &&
+                parent.parent.kind === 207 /* ExpressionStatement */;
             if (isSourceOfAssignmentExpressionStatement) {
-                result = append(result, getJSDocs(parent_4.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(parent.parent);
             }
-            var isPropertyAssignmentExpression = parent_4 && parent_4.kind === 257 /* PropertyAssignment */;
-            if (isPropertyAssignmentExpression) {
-                result = append(result, getJSDocs(parent_4, checkParentVariableStatement, getDocs, getTags));
+            var isModuleDeclaration = node.kind === 230 /* ModuleDeclaration */ &&
+                parent && parent.kind === 230 /* ModuleDeclaration */;
+            var isPropertyAssignmentExpression = parent && parent.kind === 257 /* PropertyAssignment */;
+            if (isModuleDeclaration || isPropertyAssignmentExpression) {
+                getJSDocsWorker(parent);
             }
             // Pull parameter comments from declaring function as well
             if (node.kind === 144 /* Parameter */) {
-                var paramTags = getJSDocParameterTag(node, checkParentVariableStatement);
-                if (paramTags) {
-                    result = append(result, getTags(paramTags));
-                }
+                cache = ts.concatenate(cache, getJSDocParameterTags(node));
             }
-        }
-        if (isVariableLike(node) && node.initializer) {
-            result = append(result, getJSDocs(node.initializer, /*checkParentVariableStatement*/ false, getDocs, getTags));
-        }
-        if (node.jsDocComments) {
-            if (result) {
-                result = append(result, getDocs(node.jsDocComments));
-            }
-            else {
-                return getDocs(node.jsDocComments);
+            if (isVariableLike(node) && node.initializer) {
+                cache = ts.concatenate(cache, node.initializer.jsDoc);
             }
+            cache = ts.concatenate(cache, node.jsDoc);
         }
-        return result;
     }
-    function getJSDocParameterTag(param, checkParentVariableStatement) {
+    function getJSDocParameterTags(param) {
+        if (!isParameter(param)) {
+            return undefined;
+        }
         var func = param.parent;
-        var tags = getJSDocTags(func, checkParentVariableStatement);
+        var tags = getJSDocTags(func, 281 /* JSDocParameterTag */);
         if (!param.name) {
             // this is an anonymous jsdoc param from a `function(type1, type2): type3` specification
             var i = func.parameters.indexOf(param);
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 /* JSDocParameterTag */; });
+            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281 /* JSDocParameterTag */; });
             if (paramTags && 0 <= i && i < paramTags.length) {
                 return [paramTags[i]];
             }
         }
         else if (param.name.kind === 70 /* Identifier */) {
             var name_6 = param.name.text;
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 /* JSDocParameterTag */ && tag.parameterName.text === name_6; });
-            if (paramTags) {
-                return paramTags;
-            }
+            return ts.filter(tags, function (tag) { return tag.kind === 281 /* JSDocParameterTag */ && tag.parameterName.text === name_6; });
         }
         else {
             // TODO: it's a destructured parameter, so it should look up an "object type" series of multiple lines
@@ -7818,40 +7833,30 @@ var ts;
             return undefined;
         }
     }
-    function getJSDocTypeTag(node) {
-        return getJSDocTag(node, 282 /* JSDocTypeTag */, /*checkParentVariableStatement*/ false);
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, 283 /* JSDocTypeTag */);
+        if (!tag && node.kind === 144 /* Parameter */) {
+            var paramTags = getJSDocParameterTags(node);
+            if (paramTags) {
+                tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
+            }
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
+    }
+    ts.getJSDocType = getJSDocType;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, 280 /* JSDocAugmentsTag */);
     }
-    ts.getJSDocTypeTag = getJSDocTypeTag;
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
     function getJSDocReturnTag(node) {
-        return getJSDocTag(node, 281 /* JSDocReturnTag */, /*checkParentVariableStatement*/ true);
+        return getFirstJSDocTag(node, 282 /* JSDocReturnTag */);
     }
     ts.getJSDocReturnTag = getJSDocReturnTag;
     function getJSDocTemplateTag(node) {
-        return getJSDocTag(node, 283 /* JSDocTemplateTag */, /*checkParentVariableStatement*/ false);
+        return getFirstJSDocTag(node, 284 /* JSDocTemplateTag */);
     }
     ts.getJSDocTemplateTag = getJSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter) {
-        if (parameter.name && parameter.name.kind === 70 /* Identifier */) {
-            // If it's a parameter, see if the parent has a jsdoc comment with an @param
-            // annotation.
-            var parameterName = parameter.name.text;
-            var jsDocTags = getJSDocTags(parameter.parent, /*checkParentVariableStatement*/ true);
-            if (!jsDocTags) {
-                return undefined;
-            }
-            for (var _i = 0, jsDocTags_2 = jsDocTags; _i < jsDocTags_2.length; _i++) {
-                var tag = jsDocTags_2[_i];
-                if (tag.kind === 280 /* JSDocParameterTag */) {
-                    var parameterTag = tag;
-                    if (parameterTag.parameterName.text === parameterName) {
-                        return parameterTag;
-                    }
-                }
-            }
-        }
-        return undefined;
-    }
-    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
     function hasRestParameter(s) {
         return isRestParameter(ts.lastOrUndefined(s.parameters));
     }
@@ -7862,13 +7867,10 @@ var ts;
     ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
     function isRestParameter(node) {
         if (node && (node.flags & 2097152 /* JavaScriptFile */)) {
-            if (node.type && node.type.kind === 275 /* JSDocVariadicType */) {
+            if (node.type && node.type.kind === 275 /* JSDocVariadicType */ ||
+                ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275 /* JSDocVariadicType */; })) {
                 return true;
             }
-            var paramTag = getCorrespondingJSDocParameterTag(node);
-            if (paramTag && paramTag.typeExpression) {
-                return paramTag.typeExpression.type.kind === 275 /* JSDocVariadicType */;
-            }
         }
         return isDeclaredRestParam(node);
     }
@@ -8115,8 +8117,10 @@ var ts;
         return isFunctionLike(node) && hasModifier(node, 256 /* Async */) && !isAccessor(node);
     }
     ts.isAsyncFunctionLike = isAsyncFunctionLike;
-    function isStringOrNumericLiteral(kind) {
-        return kind === 9 /* StringLiteral */ || kind === 8 /* NumericLiteral */;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 9 /* StringLiteral */
+            || kind === 8 /* NumericLiteral */;
     }
     ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
     /**
@@ -8132,7 +8136,7 @@ var ts;
     ts.hasDynamicName = hasDynamicName;
     function isDynamicName(name) {
         return name.kind === 142 /* ComputedPropertyName */ &&
-            !isStringOrNumericLiteral(name.expression.kind) &&
+            !isStringOrNumericLiteral(name.expression) &&
             !isWellKnownSymbolSyntactically(name.expression);
     }
     ts.isDynamicName = isDynamicName;
@@ -8356,6 +8360,7 @@ var ts;
             case 194 /* TemplateExpression */:
             case 183 /* ParenthesizedExpression */:
             case 198 /* OmittedExpression */:
+            case 297 /* RawExpression */:
                 return 19;
             case 181 /* TaggedTemplateExpression */:
             case 177 /* PropertyAccessExpression */:
@@ -9226,19 +9231,19 @@ var ts;
         }
     }
     ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
-    function isAssignmentExpression(node) {
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
         return isBinaryExpression(node)
-            && isAssignmentOperator(node.operatorToken.kind)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 57 /* EqualsToken */
+                : isAssignmentOperator(node.operatorToken.kind))
             && isLeftHandSideExpression(node.left);
     }
     ts.isAssignmentExpression = isAssignmentExpression;
     function isDestructuringAssignment(node) {
-        if (isBinaryExpression(node)) {
-            if (node.operatorToken.kind === 57 /* EqualsToken */) {
-                var kind = node.left.kind;
-                return kind === 176 /* ObjectLiteralExpression */
-                    || kind === 175 /* ArrayLiteralExpression */;
-            }
+        if (isAssignmentExpression(node, /*excludeCompoundAssignment*/ true)) {
+            var kind = node.left.kind;
+            return kind === 176 /* ObjectLiteralExpression */
+                || kind === 175 /* ArrayLiteralExpression */;
         }
         return false;
     }
@@ -9632,135 +9637,6 @@ var ts;
         return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
     }
     ts.getStartPositionOfRange = getStartPositionOfRange;
-    function collectExternalModuleInfo(sourceFile, resolver) {
-        var externalImports = [];
-        var exportSpecifiers = ts.createMap();
-        var exportedBindings = ts.createMap();
-        var uniqueExports = ts.createMap();
-        var hasExportDefault = false;
-        var exportEquals = undefined;
-        var hasExportStarsToExportValues = false;
-        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
-            var node = _a[_i];
-            switch (node.kind) {
-                case 235 /* ImportDeclaration */:
-                    // import "mod"
-                    // import x from "mod"
-                    // import * as x from "mod"
-                    // import { x, y } from "mod"
-                    externalImports.push(node);
-                    break;
-                case 234 /* ImportEqualsDeclaration */:
-                    if (node.moduleReference.kind === 245 /* ExternalModuleReference */) {
-                        // import x = require("mod")
-                        externalImports.push(node);
-                    }
-                    break;
-                case 241 /* ExportDeclaration */:
-                    if (node.moduleSpecifier) {
-                        if (!node.exportClause) {
-                            // export * from "mod"
-                            externalImports.push(node);
-                            hasExportStarsToExportValues = true;
-                        }
-                        else {
-                            // export { x, y } from "mod"
-                            externalImports.push(node);
-                        }
-                    }
-                    else {
-                        // export { x, y }
-                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
-                            var specifier = _c[_b];
-                            if (!uniqueExports[specifier.name.text]) {
-                                var name_8 = specifier.propertyName || specifier.name;
-                                ts.multiMapAdd(exportSpecifiers, name_8.text, specifier);
-                                var decl = resolver.getReferencedImportDeclaration(name_8)
-                                    || resolver.getReferencedValueDeclaration(name_8);
-                                if (decl) {
-                                    ts.multiMapAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
-                                }
-                                uniqueExports[specifier.name.text] = specifier.name;
-                            }
-                        }
-                    }
-                    break;
-                case 240 /* ExportAssignment */:
-                    if (node.isExportEquals && !exportEquals) {
-                        // export = x
-                        exportEquals = node;
-                    }
-                    break;
-                case 205 /* VariableStatement */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
-                            var decl = _e[_d];
-                            collectExportedVariableInfo(decl, uniqueExports);
-                        }
-                    }
-                    break;
-                case 225 /* FunctionDeclaration */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        if (hasModifier(node, 512 /* Default */)) {
-                            // export default function() { }
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            // export function x() { }
-                            var name_9 = node.name;
-                            if (!uniqueExports[name_9.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_9);
-                                uniqueExports[name_9.text] = name_9;
-                            }
-                        }
-                    }
-                    break;
-                case 226 /* ClassDeclaration */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        if (hasModifier(node, 512 /* Default */)) {
-                            // export default class { }
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            // export class x { }
-                            var name_10 = node.name;
-                            if (!uniqueExports[name_10.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_10);
-                                uniqueExports[name_10.text] = name_10;
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        var exportedNames;
-        for (var key in uniqueExports) {
-            exportedNames = ts.append(exportedNames, uniqueExports[key]);
-        }
-        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames };
-    }
-    ts.collectExternalModuleInfo = collectExternalModuleInfo;
-    function collectExportedVariableInfo(decl, uniqueExports) {
-        if (isBindingPattern(decl.name)) {
-            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
-                var element = _a[_i];
-                if (!isOmittedExpression(element)) {
-                    collectExportedVariableInfo(element, uniqueExports);
-                }
-            }
-        }
-        else if (!isGeneratedIdentifier(decl.name)) {
-            if (!uniqueExports[decl.name.text]) {
-                uniqueExports[decl.name.text] = decl.name;
-            }
-        }
-    }
     /**
      * Determines whether a name was originally the declaration name of an enum or namespace
      * declaration.
@@ -9964,6 +9840,14 @@ var ts;
     }
     ts.isTypeNode = isTypeNode;
     // Binding patterns
+    function isArrayBindingPattern(node) {
+        return node.kind === 173 /* ArrayBindingPattern */;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isObjectBindingPattern(node) {
+        return node.kind === 172 /* ObjectBindingPattern */;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
     function isBindingPattern(node) {
         if (node) {
             var kind = node.kind;
@@ -9973,6 +9857,12 @@ var ts;
         return false;
     }
     ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 175 /* ArrayLiteralExpression */
+            || kind === 176 /* ObjectLiteralExpression */;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
     function isBindingElement(node) {
         return node.kind === 174 /* BindingElement */;
     }
@@ -9983,6 +9873,51 @@ var ts;
             || kind === 198 /* OmittedExpression */;
     }
     ts.isArrayBindingElement = isArrayBindingElement;
+    /**
+     * Determines whether the BindingOrAssignmentElement is a BindingElement-like declaration
+     */
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 223 /* VariableDeclaration */:
+            case 144 /* Parameter */:
+            case 174 /* BindingElement */:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    /**
+     * Determines whether a node is a BindingOrAssignmentPattern
+     */
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    /**
+     * Determines whether a node is an ObjectBindingOrAssignmentPattern
+     */
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 172 /* ObjectBindingPattern */:
+            case 176 /* ObjectLiteralExpression */:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    /**
+     * Determines whether a node is an ArrayBindingOrAssignmentPattern
+     */
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
     // Expression
     function isArrayLiteralExpression(node) {
         return node.kind === 175 /* ArrayLiteralExpression */;
@@ -10050,7 +9985,8 @@ var ts;
             || kind === 98 /* ThisKeyword */
             || kind === 100 /* TrueKeyword */
             || kind === 96 /* SuperKeyword */
-            || kind === 201 /* NonNullExpression */;
+            || kind === 201 /* NonNullExpression */
+            || kind === 297 /* RawExpression */;
     }
     function isLeftHandSideExpression(node) {
         return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
@@ -10078,6 +10014,7 @@ var ts;
             || kind === 196 /* SpreadElement */
             || kind === 200 /* AsExpression */
             || kind === 198 /* OmittedExpression */
+            || kind === 297 /* RawExpression */
             || isUnaryExpressionKind(kind);
     }
     function isExpression(node) {
@@ -10091,11 +10028,11 @@ var ts;
     }
     ts.isAssertionExpression = isAssertionExpression;
     function isPartiallyEmittedExpression(node) {
-        return node.kind === 293 /* PartiallyEmittedExpression */;
+        return node.kind === 294 /* PartiallyEmittedExpression */;
     }
     ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
     function isNotEmittedStatement(node) {
-        return node.kind === 292 /* NotEmittedStatement */;
+        return node.kind === 293 /* NotEmittedStatement */;
     }
     ts.isNotEmittedStatement = isNotEmittedStatement;
     function isNotEmittedOrPartiallyEmittedNode(node) {
@@ -10209,7 +10146,7 @@ var ts;
             || kind === 228 /* TypeAliasDeclaration */
             || kind === 143 /* TypeParameter */
             || kind === 223 /* VariableDeclaration */
-            || kind === 284 /* JSDocTypedefTag */;
+            || kind === 285 /* JSDocTypedefTag */;
     }
     function isDeclarationStatementKind(kind) {
         return kind === 225 /* FunctionDeclaration */
@@ -10244,9 +10181,9 @@ var ts;
             || kind === 205 /* VariableStatement */
             || kind === 210 /* WhileStatement */
             || kind === 217 /* WithStatement */
-            || kind === 292 /* NotEmittedStatement */
-            || kind === 295 /* EndOfDeclarationMarker */
-            || kind === 294 /* MergeDeclarationMarker */;
+            || kind === 293 /* NotEmittedStatement */
+            || kind === 296 /* EndOfDeclarationMarker */
+            || kind === 295 /* MergeDeclarationMarker */;
     }
     function isDeclaration(node) {
         return isDeclarationKind(node.kind);
@@ -10641,6 +10578,60 @@ var ts;
         return flags;
     }
     ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    /**
+      * Checks to see if the locale is in the appropriate format,
+      * and if it is, attempts to set the appropriate language.
+      */
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        // First try the entire locale, then fall back to just language if that's all we have.
+        // Either ways do not fail, and fallback to the English diagnostic strings.
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, /*territory*/ undefined, errors);
+        }
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            // TODO: Add codePage support for readFile?
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.localizedDiagnosticMessages = JSON.parse(fileContents);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
 })(ts || (ts = {}));
 /// <reference path="core.ts"/>
 /// <reference path="utilities.ts"/>
@@ -10858,9 +10849,9 @@ var ts;
         return node;
     }
     ts.createParameter = createParameter;
-    function updateParameter(node, decorators, modifiers, name, type, initializer) {
-        if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
-            return updateNode(createParameter(decorators, modifiers, node.dotDotDotToken, name, node.questionToken, type, initializer, /*location*/ node, /*flags*/ node.flags), node);
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
+        if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
+            return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, /*location*/ node, /*flags*/ node.flags), node);
         }
         return node;
     }
@@ -10995,9 +10986,9 @@ var ts;
         return node;
     }
     ts.createBindingElement = createBindingElement;
-    function updateBindingElement(node, propertyName, name, initializer) {
-        if (node.propertyName !== propertyName || node.name !== name || node.initializer !== initializer) {
-            return updateNode(createBindingElement(propertyName, node.dotDotDotToken, name, initializer, node), node);
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
+            return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
         }
         return node;
     }
@@ -11038,7 +11029,7 @@ var ts;
     function createPropertyAccess(expression, name, location, flags) {
         var node = createNode(177 /* PropertyAccessExpression */, location, flags);
         node.expression = parenthesizeForAccess(expression);
-        (node.emitNode || (node.emitNode = {})).flags |= 1048576 /* NoIndentation */;
+        (node.emitNode || (node.emitNode = {})).flags |= 65536 /* NoIndentation */;
         node.name = typeof name === "string" ? createIdentifier(name) : name;
         return node;
     }
@@ -11260,13 +11251,23 @@ var ts;
         return node;
     }
     ts.updateBinary = updateBinary;
-    function createConditional(condition, questionToken, whenTrue, colonToken, whenFalse, location) {
-        var node = createNode(193 /* ConditionalExpression */, location);
-        node.condition = condition;
-        node.questionToken = questionToken;
-        node.whenTrue = whenTrue;
-        node.colonToken = colonToken;
-        node.whenFalse = whenFalse;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
+        var node = createNode(193 /* ConditionalExpression */, whenFalse ? location : colonTokenOrLocation);
+        node.condition = parenthesizeForConditionalHead(condition);
+        if (whenFalse) {
+            // second overload
+            node.questionToken = questionTokenOrWhenTrue;
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+            node.colonToken = colonTokenOrLocation;
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
+        }
+        else {
+            // first overload
+            node.questionToken = createToken(54 /* QuestionToken */);
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
+            node.colonToken = createToken(55 /* ColonToken */);
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+        }
         return node;
     }
     ts.createConditional = createConditional;
@@ -12082,8 +12083,6 @@ var ts;
                 updated.imports = node.imports;
             if (node.moduleAugmentations !== undefined)
                 updated.moduleAugmentations = node.moduleAugmentations;
-            if (node.externalHelpersModuleName !== undefined)
-                updated.externalHelpersModuleName = node.externalHelpersModuleName;
             return updateNode(updated, node);
         }
         return node;
@@ -12097,7 +12096,7 @@ var ts;
      * @param original The original statement.
      */
     function createNotEmittedStatement(original) {
-        var node = createNode(292 /* NotEmittedStatement */, /*location*/ original);
+        var node = createNode(293 /* NotEmittedStatement */, /*location*/ original);
         node.original = original;
         return node;
     }
@@ -12107,7 +12106,7 @@ var ts;
      * order to properly emit exports.
      */
     function createEndOfDeclarationMarker(original) {
-        var node = createNode(295 /* EndOfDeclarationMarker */);
+        var node = createNode(296 /* EndOfDeclarationMarker */);
         node.emitNode = {};
         node.original = original;
         return node;
@@ -12118,7 +12117,7 @@ var ts;
      * order to properly emit exports.
      */
     function createMergeDeclarationMarker(original) {
-        var node = createNode(294 /* MergeDeclarationMarker */);
+        var node = createNode(295 /* MergeDeclarationMarker */);
         node.emitNode = {};
         node.original = original;
         return node;
@@ -12133,7 +12132,7 @@ var ts;
      * @param location The location for the expression. Defaults to the positions from "original" if provided.
      */
     function createPartiallyEmittedExpression(expression, original, location) {
-        var node = createNode(293 /* PartiallyEmittedExpression */, /*location*/ location || original);
+        var node = createNode(294 /* PartiallyEmittedExpression */, /*location*/ location || original);
         node.expression = expression;
         node.original = original;
         return node;
@@ -12146,6 +12145,19 @@ var ts;
         return node;
     }
     ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    /**
+     * Creates a node that emits a string of raw text in an expression position. Raw text is never
+     * transformed, should be ES3 compliant, and should have the same precedence as
+     * PrimaryExpression.
+     *
+     * @param text The raw text of the node.
+     */
+    function createRawExpression(text) {
+        var node = createNode(297 /* RawExpression */);
+        node.text = text;
+        return node;
+    }
+    ts.createRawExpression = createRawExpression;
     // Compound nodes
     function createComma(left, right) {
         return createBinary(left, 25 /* CommaToken */, right);
@@ -12195,13 +12207,19 @@ var ts;
         return createVoid(createLiteral(0));
     }
     ts.createVoidZero = createVoidZero;
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? createStrictEquality(value, createVoidZero())
+            : createStrictEquality(createTypeOf(value), createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
     function createMemberAccessForPropertyName(target, memberName, location) {
         if (ts.isComputedPropertyName(memberName)) {
             return createElementAccess(target, memberName.expression, location);
         }
         else {
             var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
-            (expression.emitNode || (expression.emitNode = {})).flags |= 2048 /* NoNestedSourceMaps */;
+            (expression.emitNode || (expression.emitNode = {})).flags |= 64 /* NoNestedSourceMaps */;
             return expression;
         }
     }
@@ -12245,14 +12263,17 @@ var ts;
         // flag and setting a parent node.
         var react = createIdentifier(reactNamespace || "React");
         react.flags &= ~8 /* Synthesized */;
-        // Set the parent that is in parse tree 
+        // Set the parent that is in parse tree
         // this makes sure that parent chain is intact for checker to traverse complete scope tree
         react.parent = ts.getParseTreeNode(parent);
         return react;
     }
     function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
         if (ts.isQualifiedName(jsxFactory)) {
-            return createPropertyAccess(createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent), setEmitFlags(getMutableClone(jsxFactory.right), 1536 /* NoSourceMap */));
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = createSynthesizedNode(70 /* Identifier */);
+            right.text = jsxFactory.right.text;
+            return createPropertyAccess(left, right);
         }
         else {
             return createReactNamespace(jsxFactory.text, parent);
@@ -12308,170 +12329,10 @@ var ts;
     }
     ts.createConstDeclarationList = createConstDeclarationList;
     // Helpers
-    function createHelperName(externalHelpersModuleName, name) {
-        return externalHelpersModuleName
-            ? createPropertyAccess(externalHelpersModuleName, name)
-            : createIdentifier(name);
-    }
-    ts.createHelperName = createHelperName;
-    function createExtendsHelper(externalHelpersModuleName, name) {
-        return createCall(createHelperName(externalHelpersModuleName, "__extends"), 
-        /*typeArguments*/ undefined, [
-            name,
-            createIdentifier("_super")
-        ]);
-    }
-    ts.createExtendsHelper = createExtendsHelper;
-    function createAssignHelper(externalHelpersModuleName, attributesSegments) {
-        return createCall(createHelperName(externalHelpersModuleName, "__assign"), 
-        /*typeArguments*/ undefined, attributesSegments);
-    }
-    ts.createAssignHelper = createAssignHelper;
-    function createParamHelper(externalHelpersModuleName, expression, parameterOffset, location) {
-        return createCall(createHelperName(externalHelpersModuleName, "__param"), 
-        /*typeArguments*/ undefined, [
-            createLiteral(parameterOffset),
-            expression
-        ], location);
-    }
-    ts.createParamHelper = createParamHelper;
-    function createMetadataHelper(externalHelpersModuleName, metadataKey, metadataValue) {
-        return createCall(createHelperName(externalHelpersModuleName, "__metadata"), 
-        /*typeArguments*/ undefined, [
-            createLiteral(metadataKey),
-            metadataValue
-        ]);
-    }
-    ts.createMetadataHelper = createMetadataHelper;
-    function createDecorateHelper(externalHelpersModuleName, decoratorExpressions, target, memberName, descriptor, location) {
-        var argumentsArray = [];
-        argumentsArray.push(createArrayLiteral(decoratorExpressions, /*location*/ undefined, /*multiLine*/ true));
-        argumentsArray.push(target);
-        if (memberName) {
-            argumentsArray.push(memberName);
-            if (descriptor) {
-                argumentsArray.push(descriptor);
-            }
-        }
-        return createCall(createHelperName(externalHelpersModuleName, "__decorate"), /*typeArguments*/ undefined, argumentsArray, location);
-    }
-    ts.createDecorateHelper = createDecorateHelper;
-    function createAwaiterHelper(externalHelpersModuleName, hasLexicalArguments, promiseConstructor, body) {
-        var generatorFunc = createFunctionExpression(
-        /*modifiers*/ undefined, createToken(38 /* AsteriskToken */), 
-        /*name*/ undefined, 
-        /*typeParameters*/ undefined, 
-        /*parameters*/ [], 
-        /*type*/ undefined, body);
-        // Mark this node as originally an async function
-        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 2097152 /* AsyncFunctionBody */;
-        return createCall(createHelperName(externalHelpersModuleName, "__awaiter"), 
-        /*typeArguments*/ undefined, [
-            createThis(),
-            hasLexicalArguments ? createIdentifier("arguments") : createVoidZero(),
-            promiseConstructor ? createExpressionFromEntityName(promiseConstructor) : createVoidZero(),
-            generatorFunc
-        ]);
+    function getHelperName(name) {
+        return setEmitFlags(createIdentifier(name), 4096 /* HelperName */ | 2 /* AdviseOnEmitNode */);
     }
-    ts.createAwaiterHelper = createAwaiterHelper;
-    function createHasOwnProperty(target, propertyName) {
-        return createCall(createPropertyAccess(target, "hasOwnProperty"), 
-        /*typeArguments*/ undefined, [propertyName]);
-    }
-    ts.createHasOwnProperty = createHasOwnProperty;
-    function createObjectCreate(prototype) {
-        return createCall(createPropertyAccess(createIdentifier("Object"), "create"), 
-        /*typeArguments*/ undefined, [prototype]);
-    }
-    function createGeti(target) {
-        // name => super[name]
-        return createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name")], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createElementAccess(target, createIdentifier("name")));
-    }
-    function createSeti(target) {
-        // (name, value) => super[name] = value
-        return createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [
-            createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name"),
-            createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "value")
-        ], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createAssignment(createElementAccess(target, createIdentifier("name")), createIdentifier("value")));
-    }
-    function createAdvancedAsyncSuperHelper() {
-        //  const _super = (function (geti, seti) {
-        //      const cache = Object.create(null);
-        //      return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });
-        //  })(name => super[name], (name, value) => super[name] = value);
-        // const cache = Object.create(null);
-        var createCache = createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("cache", 
-            /*type*/ undefined, createObjectCreate(createNull()))
-        ]));
-        // get value() { return geti(name); }
-        var getter = createGetAccessor(
-        /*decorators*/ undefined, 
-        /*modifiers*/ undefined, "value", 
-        /*parameters*/ [], 
-        /*type*/ undefined, createBlock([
-            createReturn(createCall(createIdentifier("geti"), 
-            /*typeArguments*/ undefined, [createIdentifier("name")]))
-        ]));
-        // set value(v) { seti(name, v); }
-        var setter = createSetAccessor(
-        /*decorators*/ undefined, 
-        /*modifiers*/ undefined, "value", [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "v")], createBlock([
-            createStatement(createCall(createIdentifier("seti"), 
-            /*typeArguments*/ undefined, [
-                createIdentifier("name"),
-                createIdentifier("v")
-            ]))
-        ]));
-        // return name => cache[name] || ...
-        var getOrCreateAccessorsForName = createReturn(createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name")], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createLogicalOr(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createParen(createAssignment(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createObjectLiteral([
-            getter,
-            setter
-        ]))))));
-        //  const _super = (function (geti, seti) {
-        //      const cache = Object.create(null);
-        //      return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });
-        //  })(name => super[name], (name, value) => super[name] = value);
-        return createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", 
-            /*type*/ undefined, createCall(createParen(createFunctionExpression(
-            /*modifiers*/ undefined, 
-            /*asteriskToken*/ undefined, 
-            /*name*/ undefined, 
-            /*typeParameters*/ undefined, [
-                createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "geti"),
-                createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "seti")
-            ], 
-            /*type*/ undefined, createBlock([
-                createCache,
-                getOrCreateAccessorsForName
-            ]))), 
-            /*typeArguments*/ undefined, [
-                createGeti(createSuper()),
-                createSeti(createSuper())
-            ]))
-        ]));
-    }
-    ts.createAdvancedAsyncSuperHelper = createAdvancedAsyncSuperHelper;
-    function createSimpleAsyncSuperHelper() {
-        return createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", 
-            /*type*/ undefined, createGeti(createSuper()))
-        ]));
-    }
-    ts.createSimpleAsyncSuperHelper = createSimpleAsyncSuperHelper;
+    ts.getHelperName = getHelperName;
     function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
         var target = skipParentheses(node);
         switch (target.kind) {
@@ -12657,14 +12518,14 @@ var ts;
      * @param allowSourceMaps A value indicating whether source maps may be emitted for the name.
      */
     function getLocalName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 262144 /* LocalName */);
+        return getName(node, allowComments, allowSourceMaps, 16384 /* LocalName */);
     }
     ts.getLocalName = getLocalName;
     /**
      * Gets whether an identifier should only be referred to by its local name.
      */
     function isLocalName(node) {
-        return (getEmitFlags(node) & 262144 /* LocalName */) !== 0;
+        return (getEmitFlags(node) & 16384 /* LocalName */) !== 0;
     }
     ts.isLocalName = isLocalName;
     /**
@@ -12678,7 +12539,7 @@ var ts;
      * @param allowSourceMaps A value indicating whether source maps may be emitted for the name.
      */
     function getExportName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 131072 /* ExportName */);
+        return getName(node, allowComments, allowSourceMaps, 8192 /* ExportName */);
     }
     ts.getExportName = getExportName;
     /**
@@ -12686,7 +12547,7 @@ var ts;
      * name points to an exported symbol.
      */
     function isExportName(node) {
-        return (getEmitFlags(node) & 131072 /* ExportName */) !== 0;
+        return (getEmitFlags(node) & 8192 /* ExportName */) !== 0;
     }
     ts.isExportName = isExportName;
     /**
@@ -12702,15 +12563,15 @@ var ts;
     ts.getDeclarationName = getDeclarationName;
     function getName(node, allowComments, allowSourceMaps, emitFlags) {
         if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
-            var name_11 = getMutableClone(node.name);
+            var name_8 = getMutableClone(node.name);
             emitFlags |= getEmitFlags(node.name);
             if (!allowSourceMaps)
-                emitFlags |= 1536 /* NoSourceMap */;
+                emitFlags |= 48 /* NoSourceMap */;
             if (!allowComments)
-                emitFlags |= 49152 /* NoComments */;
+                emitFlags |= 1536 /* NoComments */;
             if (emitFlags)
-                setEmitFlags(name_11, emitFlags);
-            return name_11;
+                setEmitFlags(name_8, emitFlags);
+            return name_8;
         }
         return getGeneratedNameForNode(node);
     }
@@ -12744,15 +12605,18 @@ var ts;
         var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), /*location*/ name);
         var emitFlags;
         if (!allowSourceMaps)
-            emitFlags |= 1536 /* NoSourceMap */;
+            emitFlags |= 48 /* NoSourceMap */;
         if (!allowComments)
-            emitFlags |= 49152 /* NoComments */;
+            emitFlags |= 1536 /* NoComments */;
         if (emitFlags)
             setEmitFlags(qualifiedName, emitFlags);
         return qualifiedName;
     }
     ts.getNamespaceMemberName = getNamespaceMemberName;
-    // Utilities
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : createBlock([createReturn(node, /*location*/ node)], /*location*/ node, multiLine);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
     function isUseStrictPrologue(node) {
         return node.expression.text === "use strict";
     }
@@ -12790,7 +12654,7 @@ var ts;
         }
         while (statementOffset < numStatements) {
             var statement = source[statementOffset];
-            if (getEmitFlags(statement) & 8388608 /* CustomPrologue */) {
+            if (getEmitFlags(statement) & 524288 /* CustomPrologue */) {
                 target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
             }
             else {
@@ -12801,15 +12665,22 @@ var ts;
         return statementOffset;
     }
     ts.addPrologueDirectives = addPrologueDirectives;
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
     /**
      * Ensures "use strict" directive is added
      *
-     * @param node source file
+     * @param statements An array of statements
      */
-    function ensureUseStrict(node) {
+    function ensureUseStrict(statements) {
         var foundUseStrict = false;
-        for (var _i = 0, _a = node.statements; _i < _a.length; _i++) {
-            var statement = _a[_i];
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
             if (ts.isPrologueDirective(statement)) {
                 if (isUseStrictPrologue(statement)) {
                     foundUseStrict = true;
@@ -12821,12 +12692,11 @@ var ts;
             }
         }
         if (!foundUseStrict) {
-            var statements = [];
-            statements.push(startOnNewLine(createStatement(createLiteral("use strict"))));
-            // add "use strict" as the first statement
-            return updateSourceFileNode(node, statements.concat(node.statements));
+            return createNodeArray([
+                startOnNewLine(createStatement(createLiteral("use strict")))
+            ].concat(statements), statements);
         }
-        return node;
+        return statements;
     }
     ts.ensureUseStrict = ensureUseStrict;
     /**
@@ -12987,6 +12857,24 @@ var ts;
         }
         return 0 /* Unknown */;
     }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(193 /* ConditionalExpression */, 54 /* QuestionToken */);
+        var emittedCondition = skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1 /* LessThan */) {
+            return createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        // per ES grammar both 'whenTrue' and 'whenFalse' parts of conditional expression are assignment expressions
+        // so in case when comma expression is introduced as a part of previous transformations
+        // if should be wrapped in parens since comma operator has the lowest precedence
+        return e.kind === 192 /* BinaryExpression */ && e.operatorToken.kind === 25 /* CommaToken */
+            ? createParen(e)
+            : e;
+    }
     /**
      * Wraps an expression in parentheses if it is needed in order to use the expression
      * as the expression of a NewExpression node.
@@ -13118,7 +13006,7 @@ var ts;
                 case 177 /* PropertyAccessExpression */:
                     node = node.expression;
                     continue;
-                case 293 /* PartiallyEmittedExpression */:
+                case 294 /* PartiallyEmittedExpression */:
                     node = node.expression;
                     continue;
             }
@@ -13173,7 +13061,7 @@ var ts;
     }
     ts.skipAssertions = skipAssertions;
     function skipPartiallyEmittedExpressions(node) {
-        while (node.kind === 293 /* PartiallyEmittedExpression */) {
+        while (node.kind === 294 /* PartiallyEmittedExpression */) {
             node = node.expression;
         }
         return node;
@@ -13195,8 +13083,8 @@ var ts;
     }
     ts.setOriginalNode = setOriginalNode;
     function mergeEmitNode(sourceEmitNode, destEmitNode) {
-        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges;
-        if (!destEmitNode && (flags || commentRange || sourceMapRange || tokenSourceMapRanges))
+        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
+        if (!destEmitNode)
             destEmitNode = {};
         if (flags)
             destEmitNode.flags = flags;
@@ -13206,6 +13094,10 @@ var ts;
             destEmitNode.sourceMapRange = sourceMapRange;
         if (tokenSourceMapRanges)
             destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
         return destEmitNode;
     }
     function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
@@ -13258,6 +13150,7 @@ var ts;
         }
         return node.emitNode;
     }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
     /**
      * Gets flags that control emit behavior of a node.
      *
@@ -13280,6 +13173,16 @@ var ts;
     }
     ts.setEmitFlags = setEmitFlags;
     /**
+     * Gets a custom text range to use when emitting source maps.
+     *
+     * @param node The node.
+     */
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
+    /**
      * Sets a custom text range to use when emitting source maps.
      *
      * @param node The node.
@@ -13291,6 +13194,18 @@ var ts;
     }
     ts.setSourceMapRange = setSourceMapRange;
     /**
+     * Gets the TextRange to use for source maps for a token of a node.
+     *
+     * @param node The node.
+     * @param token The token.
+     */
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    /**
      * Sets the TextRange to use for source maps for a token of a node.
      *
      * @param node The node.
@@ -13305,14 +13220,6 @@ var ts;
     }
     ts.setTokenSourceMapRange = setTokenSourceMapRange;
     /**
-     * Sets a custom text range to use when emitting comments.
-     */
-    function setCommentRange(node, range) {
-        getOrCreateEmitNode(node).commentRange = range;
-        return node;
-    }
-    ts.setCommentRange = setCommentRange;
-    /**
      * Gets a custom text range to use when emitting comments.
      *
      * @param node The node.
@@ -13323,27 +13230,13 @@ var ts;
     }
     ts.getCommentRange = getCommentRange;
     /**
-     * Gets a custom text range to use when emitting source maps.
-     *
-     * @param node The node.
-     */
-    function getSourceMapRange(node) {
-        var emitNode = node.emitNode;
-        return (emitNode && emitNode.sourceMapRange) || node;
-    }
-    ts.getSourceMapRange = getSourceMapRange;
-    /**
-     * Gets the TextRange to use for source maps for a token of a node.
-     *
-     * @param node The node.
-     * @param token The token.
+     * Sets a custom text range to use when emitting comments.
      */
-    function getTokenSourceMapRange(node, token) {
-        var emitNode = node.emitNode;
-        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
-        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
     }
-    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    ts.setCommentRange = setCommentRange;
     /**
      * Gets the constant value to emit for an expression.
      */
@@ -13361,6 +13254,118 @@ var ts;
         return node;
     }
     ts.setConstantValue = setConstantValue;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
+        if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var helpers = getEmitHelpers(node);
+            if (helpers) {
+                for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                    var helper = helpers_1[_i];
+                    if (!helper.scoped) {
+                        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                        var emitNode = getOrCreateEmitNode(parseNode);
+                        return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
+                    }
+                }
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    /**
+     * Adds an EmitHelper to a node.
+     */
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    /**
+     * Adds an EmitHelper to a node.
+     */
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                var helper = helpers_2[_i];
+                if (!ts.contains(emitNode.helpers, helper)) {
+                    emitNode.helpers = ts.append(emitNode.helpers, helper);
+                }
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    /**
+     * Removes an EmitHelper from a node.
+     */
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    /**
+     * Gets the EmitHelpers of a node.
+     */
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    /**
+     * Moves matching emit helpers from a source node to a target node.
+     */
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                if (!ts.contains(targetEmitNode.helpers, helper)) {
+                    targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
+                }
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0 /* EqualTo */;
+        if (x.priority === y.priority)
+            return 0 /* EqualTo */;
+        if (x.priority === undefined)
+            return 1 /* GreaterThan */;
+        if (y.priority === undefined)
+            return -1 /* LessThan */;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
     function setTextRange(node, location) {
         if (location) {
             node.pos = location.pos;
@@ -13390,8 +13395,8 @@ var ts;
     function getLocalNameForExternalImport(node, sourceFile) {
         var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
         if (namespaceDeclaration && !ts.isDefaultImport(node)) {
-            var name_12 = namespaceDeclaration.name;
-            return ts.isGeneratedIdentifier(name_12) ? name_12 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
+            var name_9 = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name_9) ? name_9 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
         }
         if (node.kind === 235 /* ImportDeclaration */ && node.importClause) {
             return getGeneratedNameForNode(node);
@@ -13454,362 +13459,390 @@ var ts;
         return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
     }
     /**
-     * Transforms the body of a function-like node.
-     *
-     * @param node A function-like node.
+     * Gets the initializer of an BindingOrAssignmentElement.
      */
-    function transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis, convertObjectRest) {
-        var multiLine = false; // indicates whether the block *must* be emitted as multiple lines
-        var singleLine = false; // indicates whether the block *may* be emitted as a single line
-        var statementsLocation;
-        var closeBraceLocation;
-        var statements = [];
-        var body = node.body;
-        var statementOffset;
-        context.startLexicalEnvironment();
-        if (ts.isBlock(body)) {
-            // ensureUseStrict is false because no new prologue-directive should be added.
-            // addPrologueDirectives will simply put already-existing directives at the beginning of the target statement-array
-            statementOffset = addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
-        }
-        addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-        addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest);
-        addRestParameterIfNeeded(statements, node, /*inConstructorWithSynthesizedSuper*/ false);
-        // If we added any generated statements, this must be a multi-line block.
-        if (!multiLine && statements.length > 0) {
-            multiLine = true;
-        }
-        if (ts.isBlock(body)) {
-            statementsLocation = body.statements;
-            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
-            // If the original body was a multi-line block, this must be a multi-line block.
-            if (!multiLine && body.multiLine) {
-                multiLine = true;
-            }
-        }
-        else {
-            ts.Debug.assert(node.kind === 185 /* ArrowFunction */);
-            // To align with the old emitter, we use a synthetic end position on the location
-            // for the statement list we synthesize when we down-level an arrow function with
-            // an expression function body. This prevents both comments and source maps from
-            // being emitted for the end position only.
-            statementsLocation = ts.moveRangeEnd(body, -1);
-            var equalsGreaterThanToken = node.equalsGreaterThanToken;
-            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
-                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
-                    singleLine = true;
-                }
-                else {
-                    multiLine = true;
-                }
-            }
-            var expression = ts.visitNode(body, visitor, ts.isExpression);
-            var returnStatement = createReturn(expression, /*location*/ body);
-            setEmitFlags(returnStatement, 12288 /* NoTokenSourceMaps */ | 1024 /* NoTrailingSourceMap */ | 32768 /* NoTrailingComments */);
-            statements.push(returnStatement);
-            // To align with the source map emit for the old emitter, we set a custom
-            // source map location for the close brace.
-            closeBraceLocation = body;
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            // `1` in `let { a = 1 } = ...`
+            // `1` in `let { a: b = 1 } = ...`
+            // `1` in `let { a: {b} = 1 } = ...`
+            // `1` in `let { a: [b] = 1 } = ...`
+            // `1` in `let [a = 1] = ...`
+            // `1` in `let [{a} = 1] = ...`
+            // `1` in `let [[a] = 1] = ...`
+            return bindingElement.initializer;
+        }
+        if (ts.isPropertyAssignment(bindingElement)) {
+            // `1` in `({ a: b = 1 } = ...)`
+            // `1` in `({ a: {b} = 1 } = ...)`
+            // `1` in `({ a: [b] = 1 } = ...)`
+            return ts.isAssignmentExpression(bindingElement.initializer, /*excludeCompoundAssignment*/ true)
+                ? bindingElement.initializer.right
+                : undefined;
         }
-        var lexicalEnvironment = context.endLexicalEnvironment();
-        ts.addRange(statements, lexicalEnvironment);
-        // If we added any final generated statements, this must be a multi-line block
-        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
-            multiLine = true;
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            // `1` in `({ a = 1 } = ...)`
+            return bindingElement.objectAssignmentInitializer;
         }
-        var block = createBlock(createNodeArray(statements, statementsLocation), node.body, multiLine);
-        if (!multiLine && singleLine) {
-            setEmitFlags(block, 32 /* SingleLine */);
+        if (ts.isAssignmentExpression(bindingElement, /*excludeCompoundAssignment*/ true)) {
+            // `1` in `[a = 1] = ...`
+            // `1` in `[{a} = 1] = ...`
+            // `1` in `[[a] = 1] = ...`
+            return bindingElement.right;
         }
-        if (closeBraceLocation) {
-            setTokenSourceMapRange(block, 17 /* CloseBraceToken */, closeBraceLocation);
+        if (ts.isSpreadExpression(bindingElement)) {
+            // Recovery consistent with existing emit.
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
         }
-        setOriginalNode(block, node.body);
-        return block;
     }
-    ts.transformFunctionBody = transformFunctionBody;
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
     /**
-     * Adds a statement to capture the `this` of a function declaration if it is needed.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A node.
+     * Gets the name of an BindingOrAssignmentElement.
      */
-    function addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis) {
-        if (node.transformFlags & 524288 /* ContainsCapturedLexicalThis */ && node.kind !== 185 /* ArrowFunction */) {
-            captureThisForNode(statements, node, createThis(), enableSubstitutionsForCapturedThis);
-        }
-    }
-    ts.addCaptureThisForNodeIfNeeded = addCaptureThisForNodeIfNeeded;
-    function captureThisForNode(statements, node, initializer, enableSubstitutionsForCapturedThis, originalStatement) {
-        enableSubstitutionsForCapturedThis();
-        var captureThisStatement = createVariableStatement(
-        /*modifiers*/ undefined, createVariableDeclarationList([
-            createVariableDeclaration("_this", 
-            /*type*/ undefined, initializer)
-        ]), originalStatement);
-        setEmitFlags(captureThisStatement, 49152 /* NoComments */ | 8388608 /* CustomPrologue */);
-        setSourceMapRange(captureThisStatement, node);
-        statements.push(captureThisStatement);
-    }
-    ts.captureThisForNode = captureThisForNode;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            // `a` in `let { a } = ...`
+            // `a` in `let { a = 1 } = ...`
+            // `b` in `let { a: b } = ...`
+            // `b` in `let { a: b = 1 } = ...`
+            // `a` in `let { ...a } = ...`
+            // `{b}` in `let { a: {b} } = ...`
+            // `{b}` in `let { a: {b} = 1 } = ...`
+            // `[b]` in `let { a: [b] } = ...`
+            // `[b]` in `let { a: [b] = 1 } = ...`
+            // `a` in `let [a] = ...`
+            // `a` in `let [a = 1] = ...`
+            // `a` in `let [...a] = ...`
+            // `{a}` in `let [{a}] = ...`
+            // `{a}` in `let [{a} = 1] = ...`
+            // `[a]` in `let [[a]] = ...`
+            // `[a]` in `let [[a] = 1] = ...`
+            return bindingElement.name;
+        }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 257 /* PropertyAssignment */:
+                    // `b` in `({ a: b } = ...)`
+                    // `b` in `({ a: b = 1 } = ...)`
+                    // `{b}` in `({ a: {b} } = ...)`
+                    // `{b}` in `({ a: {b} = 1 } = ...)`
+                    // `[b]` in `({ a: [b] } = ...)`
+                    // `[b]` in `({ a: [b] = 1 } = ...)`
+                    // `b.c` in `({ a: b.c } = ...)`
+                    // `b.c` in `({ a: b.c = 1 } = ...)`
+                    // `b[0]` in `({ a: b[0] } = ...)`
+                    // `b[0]` in `({ a: b[0] = 1 } = ...)`
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 258 /* ShorthandPropertyAssignment */:
+                    // `a` in `({ a } = ...)`
+                    // `a` in `({ a = 1 } = ...)`
+                    return bindingElement.name;
+                case 259 /* SpreadAssignment */:
+                    // `a` in `({ ...a } = ...)`
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            // no target
+            return undefined;
+        }
+        if (ts.isAssignmentExpression(bindingElement, /*excludeCompoundAssignment*/ true)) {
+            // `a` in `[a = 1] = ...`
+            // `{a}` in `[{a} = 1] = ...`
+            // `[a]` in `[[a] = 1] = ...`
+            // `a.b` in `[a.b = 1] = ...`
+            // `a[0]` in `[a[0] = 1] = ...`
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadExpression(bindingElement)) {
+            // `a` in `[...a] = ...`
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        // `a` in `[a] = ...`
+        // `{a}` in `[{a}] = ...`
+        // `[a]` in `[[a]] = ...`
+        // `a.b` in `[a.b] = ...`
+        // `a[0]` in `[a[0]] = ...`
+        return bindingElement;
+    }
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
     /**
-     * Gets a value indicating whether we need to add default value assignments for a
-     * function-like node.
-     *
-     * @param node A function-like node.
+     * Determines whether an BindingOrAssignmentElement is a rest element.
      */
-    function shouldAddDefaultValueAssignments(node) {
-        return (node.transformFlags & 2097152 /* ContainsDefaultValueAssignments */) !== 0;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 144 /* Parameter */:
+            case 174 /* BindingElement */:
+                // `...` in `let [...a] = ...`
+                return bindingElement.dotDotDotToken;
+            case 196 /* SpreadElement */:
+            case 259 /* SpreadAssignment */:
+                // `...` in `[...a] = ...`
+                return bindingElement;
+        }
+        return undefined;
     }
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
     /**
-     * Adds statements to the body of a function-like node if it contains parameters with
-     * binding patterns or initializers.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A function-like node.
+     * Gets the property name of a BindingOrAssignmentElement
      */
-    function addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest) {
-        if (!shouldAddDefaultValueAssignments(node)) {
-            return;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 174 /* BindingElement */:
+                // `a` in `let { a: b } = ...`
+                // `[a]` in `let { [a]: b } = ...`
+                // `"a"` in `let { "a": b } = ...`
+                // `1` in `let { 1: b } = ...`
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 257 /* PropertyAssignment */:
+                // `a` in `({ a: b } = ...)`
+                // `[a]` in `({ [a]: b } = ...)`
+                // `"a"` in `({ "a": b } = ...)`
+                // `1` in `({ 1: b } = ...)`
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 259 /* SpreadAssignment */:
+                // `a` in `({ ...a } = ...)`
+                return bindingElement.name;
         }
-        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
-            var parameter = _a[_i];
-            var name_13 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
-            // A rest parameter cannot have a binding pattern or an initializer,
-            // so let's just ignore it.
-            if (dotDotDotToken) {
-                continue;
-            }
-            if (ts.isBindingPattern(name_13)) {
-                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_13, initializer, visitor, convertObjectRest);
-            }
-            else if (initializer) {
-                addDefaultValueAssignmentForInitializer(statements, parameter, name_13, initializer, visitor);
-            }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
+                ? target.expression
+                : target;
         }
+        ts.Debug.fail("Invalid property name for binding element.");
     }
-    ts.addDefaultValueAssignmentsIfNeeded = addDefaultValueAssignmentsIfNeeded;
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
     /**
-     * Adds statements to the body of a function-like node for parameters with binding patterns
-     *
-     * @param statements The statements for the new function body.
-     * @param parameter The parameter for the function.
-     * @param name The name of the parameter.
-     * @param initializer The initializer for the parameter.
+     * Gets the elements of a BindingOrAssignmentPattern
      */
-    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer, visitor, convertObjectRest) {
-        var temp = getGeneratedNameForNode(parameter);
-        // In cases where a binding pattern is simply '[]' or '{}',
-        // we usually don't want to emit a var declaration; however, in the presence
-        // of an initializer, we must emit that expression to preserve side effects.
-        if (name.elements.length > 0) {
-            statements.push(setEmitFlags(createVariableStatement(
-            /*modifiers*/ undefined, createVariableDeclarationList(ts.flattenParameterDestructuring(parameter, temp, visitor, convertObjectRest))), 8388608 /* CustomPrologue */));
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 172 /* ObjectBindingPattern */:
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                // `a` in `{a}`
+                // `a` in `[a]`
+                return name.elements;
+            case 176 /* ObjectLiteralExpression */:
+                // `a` in `{a}`
+                return name.properties;
         }
-        else if (initializer) {
-            statements.push(setEmitFlags(createStatement(createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 8388608 /* CustomPrologue */));
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpread(element.name, element), element);
+            }
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
         }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
     }
-    /**
-     * Adds statements to the body of a function-like node for parameters with initializers.
-     *
-     * @param statements The statements for the new function body.
-     * @param parameter The parameter for the function.
-     * @param name The name of the parameter.
-     * @param initializer The initializer for the parameter.
-     */
-    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer, visitor) {
-        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
-        var statement = createIf(createStrictEquality(getSynthesizedClone(name), createVoidZero()), setEmitFlags(createBlock([
-            createStatement(createAssignment(setEmitFlags(getMutableClone(name), 1536 /* NoSourceMap */), setEmitFlags(initializer, 1536 /* NoSourceMap */ | getEmitFlags(initializer)), 
-            /*location*/ parameter))
-        ], /*location*/ parameter), 32 /* SingleLine */ | 1024 /* NoTrailingSourceMap */ | 12288 /* NoTokenSourceMaps */), 
-        /*elseStatement*/ undefined, 
-        /*location*/ parameter);
-        statement.startsOnNewLine = true;
-        setEmitFlags(statement, 12288 /* NoTokenSourceMaps */ | 1024 /* NoTrailingSourceMap */ | 8388608 /* CustomPrologue */);
-        statements.push(statement);
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpreadAssignment(element.name, element), element);
+            }
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
+            }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
+        }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
     }
-    /**
-     * Gets a value indicating whether we need to add statements to handle a rest parameter.
-     *
-     * @param node A ParameterDeclaration node.
-     * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
-     *                                          part of a constructor declaration with a
-     *                                          synthesized call to `super`
-     */
-    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
-        return node && node.dotDotDotToken && node.name.kind === 70 /* Identifier */ && !inConstructorWithSynthesizedSuper;
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                return convertToArrayAssignmentPattern(node);
+            case 172 /* ObjectBindingPattern */:
+            case 176 /* ObjectLiteralExpression */:
+                return convertToObjectAssignmentPattern(node);
+        }
     }
-    /**
-     * Adds statements to the body of a function-like node if it contains a rest parameter.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A function-like node.
-     * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
-     *                                          part of a constructor declaration with a
-     *                                          synthesized call to `super`
-     */
-    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
-        var parameter = ts.lastOrUndefined(node.parameters);
-        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
-            return;
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
         }
-        // `declarationName` is the name of the local declaration for the parameter.
-        var declarationName = getMutableClone(parameter.name);
-        setEmitFlags(declarationName, 1536 /* NoSourceMap */);
-        // `expressionName` is the name of the parameter used in expressions.
-        var expressionName = getSynthesizedClone(parameter.name);
-        var restIndex = node.parameters.length - 1;
-        var temp = createLoopVariable();
-        // var param = [];
-        statements.push(setEmitFlags(createVariableStatement(
-        /*modifiers*/ undefined, createVariableDeclarationList([
-            createVariableDeclaration(declarationName, 
-            /*type*/ undefined, createArrayLiteral([]))
-        ]), 
-        /*location*/ parameter), 8388608 /* CustomPrologue */));
-        // for (var _i = restIndex; _i < arguments.length; _i++) {
-        //   param[_i - restIndex] = arguments[_i];
-        // }
-        var forStatement = createFor(createVariableDeclarationList([
-            createVariableDeclaration(temp, /*type*/ undefined, createLiteral(restIndex))
-        ], /*location*/ parameter), createLessThan(temp, createPropertyAccess(createIdentifier("arguments"), "length"), 
-        /*location*/ parameter), createPostfixIncrement(temp, /*location*/ parameter), createBlock([
-            startOnNewLine(createStatement(createAssignment(createElementAccess(expressionName, createSubtract(temp, createLiteral(restIndex))), createElementAccess(createIdentifier("arguments"), temp)), 
-            /*location*/ parameter))
-        ]));
-        setEmitFlags(forStatement, 8388608 /* CustomPrologue */);
-        startOnNewLine(forStatement);
-        statements.push(forStatement);
-    }
-    ts.addRestParameterIfNeeded = addRestParameterIfNeeded;
-    function convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, convertObjectRest) {
-        // The following ES6 code:
-        //
-        //    for (let v of expr) { }
-        //
-        // should be emitted as
-        //
-        //    for (var _i = 0, _a = expr; _i < _a.length; _i++) {
-        //        var v = _a[_i];
-        //    }
-        //
-        // where _a and _i are temps emitted to capture the RHS and the counter,
-        // respectively.
-        // When the left hand side is an expression instead of a let declaration,
-        // the "let v" is not emitted.
-        // When the left hand side is a let/const, the v is renamed if there is
-        // another v in scope.
-        // Note that all assignments to the LHS are emitted in the body, including
-        // all destructuring.
-        // Note also that because an extra statement is needed to assign to the LHS,
-        // for-of bodies are always emitted as blocks.
-        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
-        var initializer = node.initializer;
-        var statements = [];
-        // In the case where the user wrote an identifier as the RHS, like this:
-        //
-        //     for (let v of arr) { }
-        //
-        // we don't want to emit a temporary variable for the RHS, just use it directly.
-        var counter = convertObjectRest ? undefined : createLoopVariable();
-        var rhsReference = expression.kind === 70 /* Identifier */
-            ? createUniqueName(expression.text)
-            : createTempVariable(/*recordTempVariable*/ undefined);
-        var elementAccess = convertObjectRest ? rhsReference : createElementAccess(rhsReference, counter);
-        // Initialize LHS
-        // var v = _a[_i];
-        if (ts.isVariableDeclarationList(initializer)) {
-            if (initializer.flags & 3 /* BlockScoped */) {
-                enableSubstitutionsForBlockScopedBindings();
-            }
-            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
-            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
-                // This works whether the declaration is a var, let, or const.
-                // It will use rhsIterationValue _a[_i] as the initializer.
-                var declarations = ts.flattenVariableDestructuring(firstOriginalDeclaration, elementAccess, visitor, 
-                /*recordTempVariable*/ undefined, convertObjectRest);
-                var declarationList = createVariableDeclarationList(declarations, /*location*/ initializer);
-                setOriginalNode(declarationList, initializer);
-                // Adjust the source map range for the first declaration to align with the old
-                // emitter.
-                var firstDeclaration = declarations[0];
-                var lastDeclaration = ts.lastOrUndefined(declarations);
-                setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
-                statements.push(createVariableStatement(
-                /*modifiers*/ undefined, declarationList));
-            }
-            else {
-                // The following call does not include the initializer, so we have
-                // to emit it separately.
-                statements.push(createVariableStatement(
-                /*modifiers*/ undefined, setOriginalNode(createVariableDeclarationList([
-                    createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : createTempVariable(/*recordTempVariable*/ undefined), 
-                    /*type*/ undefined, createElementAccess(rhsReference, counter))
-                ], /*location*/ ts.moveRangePos(initializer, -1)), initializer), 
-                /*location*/ ts.moveRangeEnd(initializer, -1)));
-            }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
+    }
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
         }
-        else {
-            // Initializer is an expression. Emit the expression in the body, so that it's
-            // evaluated on every iteration.
-            var assignment = createAssignment(initializer, elementAccess);
-            if (ts.isDestructuringAssignment(assignment)) {
-                // This is a destructuring pattern, so we flatten the destructuring instead.
-                statements.push(createStatement(ts.flattenDestructuringAssignment(context, assignment, 
-                /*needsValue*/ false, context.hoistVariableDeclaration, visitor, convertObjectRest)));
-            }
-            else {
-                // Currently there is not way to check that assignment is binary expression of destructing assignment
-                // so we have to cast never type to binaryExpression
-                assignment.end = initializer.end;
-                statements.push(createStatement(assignment, /*location*/ ts.moveRangeEnd(initializer, -1)));
-            }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
+    }
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
         }
-        var bodyLocation;
-        var statementsLocation;
-        if (convertedLoopBodyStatements) {
-            ts.addRange(statements, convertedLoopBodyStatements);
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
+    }
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMap();
+        var exportedBindings = ts.createMap();
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals = undefined;
+        var hasExportStarsToExportValues = false;
+        var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
+        var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(
+        /*decorators*/ undefined, 
+        /*modifiers*/ undefined, createImportClause(/*name*/ undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
+        if (externalHelpersImportDeclaration) {
+            externalImports.push(externalHelpersImportDeclaration);
         }
-        else {
-            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
-            if (ts.isBlock(statement)) {
-                ts.addRange(statements, statement.statements);
-                bodyLocation = statement;
-                statementsLocation = statement.statements;
-            }
-            else {
-                statements.push(statement);
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 235 /* ImportDeclaration */:
+                    // import "mod"
+                    // import x from "mod"
+                    // import * as x from "mod"
+                    // import { x, y } from "mod"
+                    externalImports.push(node);
+                    break;
+                case 234 /* ImportEqualsDeclaration */:
+                    if (node.moduleReference.kind === 245 /* ExternalModuleReference */) {
+                        // import x = require("mod")
+                        externalImports.push(node);
+                    }
+                    break;
+                case 241 /* ExportDeclaration */:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            // export * from "mod"
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            // export { x, y } from "mod"
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        // export { x, y }
+                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports[specifier.name.text]) {
+                                var name_10 = specifier.propertyName || specifier.name;
+                                ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name_10)
+                                    || resolver.getReferencedValueDeclaration(name_10);
+                                if (decl) {
+                                    ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports[specifier.name.text] = true;
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 240 /* ExportAssignment */:
+                    if (node.isExportEquals && !exportEquals) {
+                        // export = x
+                        exportEquals = node;
+                    }
+                    break;
+                case 205 /* VariableStatement */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 225 /* FunctionDeclaration */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        if (ts.hasModifier(node, 512 /* Default */)) {
+                            // export default function() { }
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            // export function x() { }
+                            var name_11 = node.name;
+                            if (!uniqueExports[name_11.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_11);
+                                uniqueExports[name_11.text] = true;
+                                exportedNames = ts.append(exportedNames, name_11);
+                            }
+                        }
+                    }
+                    break;
+                case 226 /* ClassDeclaration */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        if (ts.hasModifier(node, 512 /* Default */)) {
+                            // export default class { }
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            // export class x { }
+                            var name_12 = node.name;
+                            if (!uniqueExports[name_12.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_12);
+                                uniqueExports[name_12.text] = true;
+                                exportedNames = ts.append(exportedNames, name_12);
+                            }
+                        }
+                    }
+                    break;
             }
         }
-        // The old emitter does not emit source maps for the expression
-        setEmitFlags(expression, 1536 /* NoSourceMap */ | getEmitFlags(expression));
-        // The old emitter does not emit source maps for the block.
-        // We add the location to preserve comments.
-        var body = createBlock(createNodeArray(statements, /*location*/ statementsLocation), 
-        /*location*/ bodyLocation);
-        setEmitFlags(body, 1536 /* NoSourceMap */ | 12288 /* NoTokenSourceMaps */);
-        var forStatement;
-        if (convertObjectRest) {
-            forStatement = createForOf(createVariableDeclarationList([
-                createVariableDeclaration(rhsReference, /*type*/ undefined, /*initializer*/ undefined, /*location*/ node.expression)
-            ], /*location*/ node.expression), node.expression, body, 
-            /*location*/ node);
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
+            }
         }
-        else {
-            forStatement = createFor(setEmitFlags(createVariableDeclarationList([
-                createVariableDeclaration(counter, /*type*/ undefined, createLiteral(0), /*location*/ ts.moveRangePos(node.expression, -1)),
-                createVariableDeclaration(rhsReference, /*type*/ undefined, expression, /*location*/ node.expression)
-            ], /*location*/ node.expression), 16777216 /* NoHoisting */), createLessThan(counter, createPropertyAccess(rhsReference, "length"), 
-            /*location*/ node.expression), createPostfixIncrement(counter, /*location*/ node.expression), body, 
-            /*location*/ node);
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            if (!uniqueExports[decl.name.text]) {
+                uniqueExports[decl.name.text] = true;
+                exportedNames = ts.append(exportedNames, decl.name);
+            }
         }
-        // Disable trailing source maps for the OpenParenToken to align source map emit with the old emitter.
-        setEmitFlags(forStatement, 8192 /* NoTokenTrailingSourceMaps */);
-        return forStatement;
+        return exportedNames;
     }
-    ts.convertForOf = convertForOf;
 })(ts || (ts = {}));
 /// <reference path="utilities.ts"/>
 /// <reference path="scanner.ts"/>
@@ -14217,29 +14250,31 @@ var ts;
                     visitNode(cbNode, node.type);
             case 278 /* JSDocComment */:
                 return visitNodes(cbNodes, node.tags);
-            case 280 /* JSDocParameterTag */:
+            case 281 /* JSDocParameterTag */:
                 return visitNode(cbNode, node.preParameterName) ||
                     visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.postParameterName);
-            case 281 /* JSDocReturnTag */:
+            case 282 /* JSDocReturnTag */:
                 return visitNode(cbNode, node.typeExpression);
-            case 282 /* JSDocTypeTag */:
+            case 283 /* JSDocTypeTag */:
                 return visitNode(cbNode, node.typeExpression);
-            case 283 /* JSDocTemplateTag */:
+            case 280 /* JSDocAugmentsTag */:
+                return visitNode(cbNode, node.typeExpression);
+            case 284 /* JSDocTemplateTag */:
                 return visitNodes(cbNodes, node.typeParameters);
-            case 284 /* JSDocTypedefTag */:
+            case 285 /* JSDocTypedefTag */:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.fullName) ||
                     visitNode(cbNode, node.name) ||
                     visitNode(cbNode, node.jsDocTypeLiteral);
-            case 286 /* JSDocTypeLiteral */:
+            case 287 /* JSDocTypeLiteral */:
                 return visitNodes(cbNodes, node.jsDocPropertyTags);
-            case 285 /* JSDocPropertyTag */:
+            case 286 /* JSDocPropertyTag */:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.name);
-            case 293 /* PartiallyEmittedExpression */:
+            case 294 /* PartiallyEmittedExpression */:
                 return visitNode(cbNode, node.expression);
-            case 287 /* JSDocLiteralType */:
+            case 288 /* JSDocLiteralType */:
                 return visitNode(cbNode, node.literal);
         }
     }
@@ -14462,7 +14497,7 @@ var ts;
             return sourceFile;
         }
         function addJSDocComment(node) {
-            var comments = ts.getJsDocCommentsFromText(node, sourceFile.text);
+            var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                     var comment = comments_2[_i];
@@ -14470,10 +14505,10 @@ var ts;
                     if (!jsDoc) {
                         continue;
                     }
-                    if (!node.jsDocComments) {
-                        node.jsDocComments = [];
+                    if (!node.jsDoc) {
+                        node.jsDoc = [];
                     }
-                    node.jsDocComments.push(jsDoc);
+                    node.jsDoc.push(jsDoc);
                 }
             }
             return node;
@@ -14495,12 +14530,12 @@ var ts;
                     var saveParent = parent;
                     parent = n;
                     forEachChild(n, visitNode);
-                    if (n.jsDocComments) {
-                        for (var _i = 0, _a = n.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            jsDocComment.parent = n;
-                            parent = jsDocComment;
-                            forEachChild(jsDocComment, visitNode);
+                    if (n.jsDoc) {
+                        for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            jsDoc.parent = n;
+                            parent = jsDoc;
+                            forEachChild(jsDoc, visitNode);
                         }
                     }
                     parent = saveParent;
@@ -18524,8 +18559,8 @@ var ts;
             }
             if (decorators || modifiers) {
                 // treat this as a property declaration with a missing name.
-                var name_14 = createMissingNode(70 /* Identifier */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
-                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_14, /*questionToken*/ undefined);
+                var name_13 = createMissingNode(70 /* Identifier */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_13, /*questionToken*/ undefined);
             }
             // 'isClassMemberStart' should have hinted not to attempt parsing.
             ts.Debug.fail("Should not have attempted to parse class member declaration.");
@@ -19276,7 +19311,7 @@ var ts;
                 return finishNode(result);
             }
             function parseJSDocLiteralType() {
-                var result = createNode(287 /* JSDocLiteralType */);
+                var result = createNode(288 /* JSDocLiteralType */);
                 result.literal = parseLiteralTypeNode();
                 return finishNode(result);
             }
@@ -19486,6 +19521,9 @@ var ts;
                     var tag;
                     if (tagName) {
                         switch (tagName.text) {
+                            case "augments":
+                                tag = parseAugmentsTag(atToken, tagName);
+                                break;
                             case "param":
                                 tag = parseParamTag(atToken, tagName);
                                 break;
@@ -19633,7 +19671,7 @@ var ts;
                     if (!typeExpression) {
                         typeExpression = tryParseTypeExpression();
                     }
-                    var result = createNode(280 /* JSDocParameterTag */, atToken.pos);
+                    var result = createNode(281 /* JSDocParameterTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.preParameterName = preName;
@@ -19644,20 +19682,20 @@ var ts;
                     return finishNode(result);
                 }
                 function parseReturnTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 281 /* JSDocReturnTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 282 /* JSDocReturnTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(281 /* JSDocReturnTag */, atToken.pos);
+                    var result = createNode(282 /* JSDocReturnTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
                     return finishNode(result);
                 }
                 function parseTypeTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 282 /* JSDocTypeTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 283 /* JSDocTypeTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(282 /* JSDocTypeTag */, atToken.pos);
+                    var result = createNode(283 /* JSDocTypeTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
@@ -19672,17 +19710,25 @@ var ts;
                         parseErrorAtPosition(scanner.getStartPos(), /*length*/ 0, ts.Diagnostics.Identifier_expected);
                         return undefined;
                     }
-                    var result = createNode(285 /* JSDocPropertyTag */, atToken.pos);
+                    var result = createNode(286 /* JSDocPropertyTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.name = name;
                     result.typeExpression = typeExpression;
                     return finishNode(result);
                 }
+                function parseAugmentsTag(atToken, tagName) {
+                    var typeExpression = tryParseTypeExpression();
+                    var result = createNode(280 /* JSDocAugmentsTag */, atToken.pos);
+                    result.atToken = atToken;
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    return finishNode(result);
+                }
                 function parseTypedefTag(atToken, tagName) {
                     var typeExpression = tryParseTypeExpression();
                     skipWhitespace();
-                    var typedefTag = createNode(284 /* JSDocTypedefTag */, atToken.pos);
+                    var typedefTag = createNode(285 /* JSDocTypedefTag */, atToken.pos);
                     typedefTag.atToken = atToken;
                     typedefTag.tagName = tagName;
                     typedefTag.fullName = parseJSDocTypeNameWithNamespace(/*flags*/ 0);
@@ -19699,8 +19745,8 @@ var ts;
                         if (typeExpression.type.kind === 272 /* JSDocTypeReference */) {
                             var jsDocTypeReference = typeExpression.type;
                             if (jsDocTypeReference.name.kind === 70 /* Identifier */) {
-                                var name_15 = jsDocTypeReference.name;
-                                if (name_15.text === "Object") {
+                                var name_14 = jsDocTypeReference.name;
+                                if (name_14.text === "Object") {
                                     typedefTag.jsDocTypeLiteral = scanChildTags();
                                 }
                             }
@@ -19714,7 +19760,7 @@ var ts;
                     }
                     return finishNode(typedefTag);
                     function scanChildTags() {
-                        var jsDocTypeLiteral = createNode(286 /* JSDocTypeLiteral */, scanner.getStartPos());
+                        var jsDocTypeLiteral = createNode(287 /* JSDocTypeLiteral */, scanner.getStartPos());
                         var resumePos = scanner.getStartPos();
                         var canParseTag = true;
                         var seenAsterisk = false;
@@ -19801,20 +19847,20 @@ var ts;
                     return false;
                 }
                 function parseTemplateTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 283 /* JSDocTemplateTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 284 /* JSDocTemplateTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
                     // Type parameter list looks like '@template T,U,V'
                     var typeParameters = createNodeArray();
                     while (true) {
-                        var name_16 = parseJSDocIdentifierName();
+                        var name_15 = parseJSDocIdentifierName();
                         skipWhitespace();
-                        if (!name_16) {
+                        if (!name_15) {
                             parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                             return undefined;
                         }
-                        var typeParameter = createNode(143 /* TypeParameter */, name_16.pos);
-                        typeParameter.name = name_16;
+                        var typeParameter = createNode(143 /* TypeParameter */, name_15.pos);
+                        typeParameter.name = name_15;
                         finishNode(typeParameter);
                         typeParameters.push(typeParameter);
                         if (token() === 25 /* CommaToken */) {
@@ -19825,7 +19871,7 @@ var ts;
                             break;
                         }
                     }
-                    var result = createNode(283 /* JSDocTemplateTag */, atToken.pos);
+                    var result = createNode(284 /* JSDocTemplateTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeParameters = typeParameters;
@@ -19952,8 +19998,8 @@ var ts;
                     ts.Debug.assert(text === newText.substring(node.pos, node.end));
                 }
                 forEachChild(node, visitNode, visitArray);
-                if (node.jsDocComments) {
-                    for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
+                if (node.jsDoc) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         forEachChild(jsDocComment, visitNode, visitArray);
                     }
@@ -20530,7 +20576,7 @@ var ts;
                 if (node.name.kind === 142 /* ComputedPropertyName */) {
                     var nameExpression = node.name.expression;
                     // treat computed property names where expression is string/numeric literal as just string/numeric literal
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
@@ -20580,7 +20626,7 @@ var ts;
                     var functionType = node.parent;
                     var index = ts.indexOf(functionType.parameters, node);
                     return "arg" + index;
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     var parentNode = node.parent && node.parent.parent;
                     var nameFromParentNode = void 0;
                     if (parentNode && parentNode.kind === 205 /* VariableStatement */) {
@@ -20713,7 +20759,7 @@ var ts;
                 //       during global merging in the checker. Why? The only case when ambient module is permitted inside another module is module augmentation
                 //       and this case is specially handled. Module augmentations should only be merged with original module definition
                 //       and should never be merged directly with other augmentation, and the latter case would be possible if automatic merge is allowed.
-                var isJSDocTypedefInJSDocNamespace = node.kind === 284 /* JSDocTypedefTag */ &&
+                var isJSDocTypedefInJSDocNamespace = node.kind === 285 /* JSDocTypedefTag */ &&
                     node.name &&
                     node.name.kind === 70 /* Identifier */ &&
                     node.name.isInJSDocNamespace;
@@ -20845,15 +20891,38 @@ var ts;
                 subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
             }
         }
+        function bindEach(nodes) {
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0 /* None */;
+                var nodeArrayFlags = 0 /* None */;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bind(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912 /* HasComputedFlags */;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912 /* HasComputedFlags */;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
         function bindChildrenWorker(node) {
             // Binding of JsDocComment should be done before the current block scope container changes.
             // because the scope of JsDocComment should not be affected by whether the current node is a
             // container or not.
-            if (ts.isInJavaScriptFile(node) && node.jsDocComments) {
-                ts.forEach(node.jsDocComments, bind);
+            if (ts.isInJavaScriptFile(node) && node.jsDoc) {
+                ts.forEach(node.jsDoc, bind);
             }
             if (checkUnreachable(node)) {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 return;
             }
             switch (node.kind) {
@@ -20918,7 +20987,7 @@ var ts;
                     bindCallExpressionFlow(node);
                     break;
                 default:
-                    ts.forEachChild(node, bind);
+                    bindEachChild(node);
                     break;
             }
         }
@@ -21224,7 +21293,7 @@ var ts;
             }
             return undefined;
         }
-        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
             var flowLabel = node.kind === 215 /* BreakStatement */ ? breakTarget : continueTarget;
             if (flowLabel) {
                 addAntecedent(flowLabel, currentFlow);
@@ -21237,11 +21306,11 @@ var ts;
                 var activeLabel = findActiveLabel(node.label.text);
                 if (activeLabel) {
                     activeLabel.referenced = true;
-                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                 }
             }
             else {
-                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
             }
         }
         function bindTryStatement(node) {
@@ -21303,6 +21372,8 @@ var ts;
             currentFlow = finishFlowLabel(postSwitchLabel);
         }
         function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
             var clauses = node.clauses;
             var fallthroughFlow = unreachableFlow;
             for (var i = 0; i < clauses.length; i++) {
@@ -21322,13 +21393,15 @@ var ts;
                     errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                 }
             }
+            clauses.transformFlags = subtreeTransformFlags | 536870912 /* HasComputedFlags */;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
         }
         function bindCaseClause(node) {
             var saveCurrentFlow = currentFlow;
             currentFlow = preSwitchCaseFlow;
             bind(node.expression);
             currentFlow = saveCurrentFlow;
-            ts.forEach(node.statements, bind);
+            bindEach(node.statements);
         }
         function pushActiveLabel(name, breakTarget, continueTarget) {
             var activeLabel = {
@@ -21415,19 +21488,19 @@ var ts;
                 var saveTrueTarget = currentTrueTarget;
                 currentTrueTarget = currentFalseTarget;
                 currentFalseTarget = saveTrueTarget;
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 currentFalseTarget = currentTrueTarget;
                 currentTrueTarget = saveTrueTarget;
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (node.operator === 42 /* PlusPlusToken */ || node.operator === 43 /* MinusMinusToken */) {
                     bindAssignmentTargetFlow(node.operand);
                 }
             }
         }
         function bindPostfixUnaryExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.operator === 42 /* PlusPlusToken */ || node.operator === 43 /* MinusMinusToken */) {
                 bindAssignmentTargetFlow(node.operand);
             }
@@ -21445,7 +21518,7 @@ var ts;
                 }
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                     bindAssignmentTargetFlow(node.left);
                     if (operator === 57 /* EqualsToken */ && node.left.kind === 178 /* ElementAccessExpression */) {
@@ -21458,7 +21531,7 @@ var ts;
             }
         }
         function bindDeleteExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.expression.kind === 177 /* PropertyAccessExpression */) {
                 bindAssignmentTargetFlow(node.expression);
             }
@@ -21491,7 +21564,7 @@ var ts;
             }
         }
         function bindVariableDeclarationFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.initializer || node.parent.parent.kind === 212 /* ForInStatement */ || node.parent.parent.kind === 213 /* ForOfStatement */) {
                 bindInitializedVariableFlow(node);
             }
@@ -21505,12 +21578,12 @@ var ts;
                 expr = expr.expression;
             }
             if (expr.kind === 184 /* FunctionExpression */ || expr.kind === 185 /* ArrowFunction */) {
-                ts.forEach(node.typeArguments, bind);
-                ts.forEach(node.arguments, bind);
+                bindEach(node.typeArguments);
+                bindEach(node.arguments);
                 bind(node.expression);
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
             }
             if (node.expression.kind === 177 /* PropertyAccessExpression */) {
                 var propertyAccess = node.expression;
@@ -21526,7 +21599,7 @@ var ts;
                 case 229 /* EnumDeclaration */:
                 case 176 /* ObjectLiteralExpression */:
                 case 161 /* TypeLiteral */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 270 /* JSDocRecordType */:
                     return 1 /* IsContainer */;
                 case 227 /* InterfaceDeclaration */:
@@ -21616,7 +21689,7 @@ var ts;
                 case 176 /* ObjectLiteralExpression */:
                 case 227 /* InterfaceDeclaration */:
                 case 270 /* JSDocRecordType */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                     // Interface/Object-types always have their children added to the 'members' of
                     // their container. They are only accessible through an instance of their
                     // container, and are never in scope otherwise (even inside the body of the
@@ -21990,8 +22063,8 @@ var ts;
         }
         function updateStrictModeStatementList(statements) {
             if (!inStrictMode) {
-                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
-                    var statement = statements_1[_i];
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
                     if (!ts.isPrologueDirective(statement)) {
                         return;
                     }
@@ -22018,7 +22091,7 @@ var ts;
                     // current "blockScopeContainer" needs to be set to its immediate namespace parent.
                     if (node.isInJSDocNamespace) {
                         var parentNode = node.parent;
-                        while (parentNode && parentNode.kind !== 284 /* JSDocTypedefTag */) {
+                        while (parentNode && parentNode.kind !== 285 /* JSDocTypedefTag */) {
                             parentNode = parentNode.parent;
                         }
                         bindBlockScopedDeclaration(parentNode, 524288 /* TypeAlias */, 793064 /* TypeAliasExcludes */);
@@ -22089,7 +22162,7 @@ var ts;
                 case 146 /* PropertySignature */:
                 case 271 /* JSDocRecordMember */:
                     return bindPropertyOrMethodOrAccessor(node, 4 /* Property */ | (node.questionToken ? 536870912 /* Optional */ : 0 /* None */), 0 /* PropertyExcludes */);
-                case 285 /* JSDocPropertyTag */:
+                case 286 /* JSDocPropertyTag */:
                     return bindJSDocProperty(node);
                 case 257 /* PropertyAssignment */:
                 case 258 /* ShorthandPropertyAssignment */:
@@ -22137,7 +22210,7 @@ var ts;
                     return bindFunctionOrConstructorType(node);
                 case 161 /* TypeLiteral */:
                 case 170 /* MappedType */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 270 /* JSDocRecordType */:
                     return bindAnonymousDeclaration(node, 2048 /* TypeLiteral */, "__type");
                 case 176 /* ObjectLiteralExpression */:
@@ -22158,7 +22231,7 @@ var ts;
                     return bindClassLikeDeclaration(node);
                 case 227 /* InterfaceDeclaration */:
                     return bindBlockScopedDeclaration(node, 64 /* Interface */, 792968 /* InterfaceExcludes */);
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     if (!node.fullName || node.fullName.kind === 70 /* Identifier */) {
                         return bindBlockScopedDeclaration(node, 524288 /* TypeAlias */, 793064 /* TypeAliasExcludes */);
                     }
@@ -22238,12 +22311,12 @@ var ts;
                 return;
             }
             else {
-                var parent_5 = node.parent;
-                if (!ts.isExternalModule(parent_5)) {
+                var parent_4 = node.parent;
+                if (!ts.isExternalModule(parent_4)) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                     return;
                 }
-                if (!parent_5.isDeclarationFile) {
+                if (!parent_4.isDeclarationFile) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                     return;
                 }
@@ -22591,14 +22664,14 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */
+        if (subtreeFlags & 524288 /* ContainsSpread */
             || isSuperOrSuperProperty(expression, expressionKind)) {
             // If the this node contains a SpreadExpression, or is a super call, then it is an ES6
             // node.
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+        return transformFlags & ~537396545 /* ArrayLiteralOrCallOrNewExcludes */;
     }
     function isSuperOrSuperProperty(node, kind) {
         switch (kind) {
@@ -22617,13 +22690,13 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+        if (subtreeFlags & 524288 /* ContainsSpread */) {
             // If the this node contains a SpreadElementExpression then it is an ES6
             // node.
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+        return transformFlags & ~537396545 /* ArrayLiteralOrCallOrNewExcludes */;
     }
     function computeBinaryExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22632,19 +22705,19 @@ var ts;
         if (operatorTokenKind === 57 /* EqualsToken */ && leftKind === 176 /* ObjectLiteralExpression */) {
             // Destructuring object assignments with are ES2015 syntax
             // and possibly ESNext if they contain rest
-            transformFlags |= 48 /* AssertESNext */ | 3072 /* AssertES2015 */ | 49152 /* AssertDestructuringAssignment */;
+            transformFlags |= 8 /* AssertESNext */ | 192 /* AssertES2015 */ | 3072 /* AssertDestructuringAssignment */;
         }
         else if (operatorTokenKind === 57 /* EqualsToken */ && leftKind === 175 /* ArrayLiteralExpression */) {
             // Destructuring assignments are ES2015 syntax.
-            transformFlags |= 3072 /* AssertES2015 */ | 49152 /* AssertDestructuringAssignment */;
+            transformFlags |= 192 /* AssertES2015 */ | 3072 /* AssertDestructuringAssignment */;
         }
         else if (operatorTokenKind === 39 /* AsteriskAsteriskToken */
             || operatorTokenKind === 61 /* AsteriskAsteriskEqualsToken */) {
             // Exponentiation is ES2016 syntax.
-            transformFlags |= 768 /* AssertES2016 */;
+            transformFlags |= 32 /* AssertES2016 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeParameter(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22656,25 +22729,25 @@ var ts;
         // syntax.
         if (node.questionToken
             || node.type
-            || subtreeFlags & 65536 /* ContainsDecorators */
+            || subtreeFlags & 4096 /* ContainsDecorators */
             || ts.isThisIdentifier(name)) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         // If a parameter has an accessibility modifier, then it is TypeScript syntax.
         if (modifierFlags & 92 /* ParameterPropertyModifier */) {
-            transformFlags |= 3 /* AssertTypeScript */ | 4194304 /* ContainsParameterPropertyAssignments */;
+            transformFlags |= 3 /* AssertTypeScript */ | 262144 /* ContainsParameterPropertyAssignments */;
         }
         // parameters with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If a parameter has an initializer, a binding pattern or a dotDotDot token, then
         // it is ES6 syntax and its container must emit default value assignments or parameter destructuring downlevel.
-        if (subtreeFlags & 67108864 /* ContainsBindingPattern */ || initializer || dotDotDotToken) {
-            transformFlags |= 3072 /* AssertES2015 */ | 2097152 /* ContainsDefaultValueAssignments */;
+        if (subtreeFlags & 8388608 /* ContainsBindingPattern */ || initializer || dotDotDotToken) {
+            transformFlags |= 192 /* AssertES2015 */ | 131072 /* ContainsDefaultValueAssignments */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~604001621 /* ParameterExcludes */;
+        return transformFlags & ~536872257 /* ParameterExcludes */;
     }
     function computeParenthesizedExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22690,11 +22763,11 @@ var ts;
         }
         // If the expression of a ParenthesizedExpression is a destructuring assignment,
         // then the ParenthesizedExpression is a destructuring assignment.
-        if (expressionTransformFlags & 16384 /* DestructuringAssignment */) {
-            transformFlags |= 16384 /* DestructuringAssignment */;
+        if (expressionTransformFlags & 1024 /* DestructuringAssignment */) {
+            transformFlags |= 1024 /* DestructuringAssignment */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeClassDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -22705,47 +22778,47 @@ var ts;
         }
         else {
             // A ClassDeclaration is ES6 syntax.
-            transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+            transformFlags = subtreeFlags | 192 /* AssertES2015 */;
             // A class with a parameter property assignment, property initializer, or decorator is
             // TypeScript syntax.
             // An exported declaration may be TypeScript syntax, but is handled by the visitor
             // for a namespace declaration.
-            if ((subtreeFlags & 4390912 /* TypeScriptClassSyntaxMask */)
+            if ((subtreeFlags & 274432 /* TypeScriptClassSyntaxMask */)
                 || node.typeParameters) {
                 transformFlags |= 3 /* AssertTypeScript */;
             }
-            if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+            if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
                 // A computed property name containing `this` might need to be rewritten,
                 // so propagate the ContainsLexicalThis flag upward.
-                transformFlags |= 262144 /* ContainsLexicalThis */;
+                transformFlags |= 16384 /* ContainsLexicalThis */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~559895893 /* ClassExcludes */;
+        return transformFlags & ~539358529 /* ClassExcludes */;
     }
     function computeClassExpression(node, subtreeFlags) {
         // A ClassExpression is ES6 syntax.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // A class with a parameter property assignment, property initializer, or decorator is
         // TypeScript syntax.
-        if (subtreeFlags & 4390912 /* TypeScriptClassSyntaxMask */
+        if (subtreeFlags & 274432 /* TypeScriptClassSyntaxMask */
             || node.typeParameters) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+        if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
             // A computed property name containing `this` might need to be rewritten,
             // so propagate the ContainsLexicalThis flag upward.
-            transformFlags |= 262144 /* ContainsLexicalThis */;
+            transformFlags |= 16384 /* ContainsLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~559895893 /* ClassExcludes */;
+        return transformFlags & ~539358529 /* ClassExcludes */;
     }
     function computeHeritageClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         switch (node.token) {
             case 84 /* ExtendsKeyword */:
                 // An `extends` HeritageClause is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 107 /* ImplementsKeyword */:
                 // An `implements` HeritageClause is TypeScript syntax.
@@ -22756,27 +22829,27 @@ var ts;
                 break;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeCatchClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~537920833 /* CatchClauseExcludes */;
     }
     function computeExpressionWithTypeArguments(node, subtreeFlags) {
         // An ExpressionWithTypeArguments is ES6 syntax, as it is used in the
         // extends clause of a class.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // If an ExpressionWithTypeArguments contains type arguments, then it
         // is TypeScript syntax.
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeConstructor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22785,12 +22858,16 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* ConstructorExcludes */;
+        return transformFlags & ~601015617 /* ConstructorExcludes */;
     }
     function computeMethod(node, subtreeFlags) {
         // A MethodDeclaration is ES6 syntax.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // Decorators, TypeScript-specific modifiers, type parameters, type annotations, and
         // overloads are TypeScript syntax.
         if (node.decorators
@@ -22800,16 +22877,20 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         // An async method declaration is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // Currently, we only support generators that were originally async function bodies.
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-            transformFlags |= 12288 /* AssertGenerator */;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+            transformFlags |= 768 /* AssertGenerator */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* MethodOrAccessorExcludes */;
+        return transformFlags & ~601015617 /* MethodOrAccessorExcludes */;
     }
     function computeAccessor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22821,8 +22902,12 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* MethodOrAccessorExcludes */;
+        return transformFlags & ~601015617 /* MethodOrAccessorExcludes */;
     }
     function computePropertyDeclaration(node, subtreeFlags) {
         // A PropertyDeclaration is TypeScript syntax.
@@ -22830,10 +22915,10 @@ var ts;
         // If the PropertyDeclaration has an initializer, we need to inform its ancestor
         // so that it handle the transformation.
         if (node.initializer) {
-            transformFlags |= 131072 /* ContainsPropertyInitializer */;
+            transformFlags |= 8192 /* ContainsPropertyInitializer */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeFunctionDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -22845,7 +22930,7 @@ var ts;
             transformFlags = 3 /* AssertTypeScript */;
         }
         else {
-            transformFlags = subtreeFlags | 268435456 /* ContainsHoistedDeclarationOrCompletion */;
+            transformFlags = subtreeFlags | 33554432 /* ContainsHoistedDeclarationOrCompletion */;
             // TypeScript-specific modifiers, type parameters, and type annotations are TypeScript
             // syntax.
             if (modifierFlags & 2270 /* TypeScriptModifier */
@@ -22855,29 +22940,29 @@ var ts;
             }
             // An async function declaration is ES2017 syntax.
             if (modifierFlags & 256 /* Async */) {
-                transformFlags |= 192 /* AssertES2017 */;
+                transformFlags |= 16 /* AssertES2017 */;
             }
             // function declarations with object rest destructuring are ES Next syntax
-            if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-                transformFlags |= 48 /* AssertESNext */;
+            if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+                transformFlags |= 8 /* AssertESNext */;
             }
             // If a FunctionDeclaration's subtree has marked the container as needing to capture the
             // lexical this, or the function contains parameters with initializers, then this node is
             // ES6 syntax.
-            if (subtreeFlags & 2621440 /* ES2015FunctionSyntaxMask */) {
-                transformFlags |= 3072 /* AssertES2015 */;
+            if (subtreeFlags & 163840 /* ES2015FunctionSyntaxMask */) {
+                transformFlags |= 192 /* AssertES2015 */;
             }
             // If a FunctionDeclaration is generator function and is the body of a
             // transformed async function, then this node can be transformed to a
             // down-level generator.
             // Currently we do not support transforming any other generator fucntions
             // down level.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-                transformFlags |= 12288 /* AssertGenerator */;
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+                transformFlags |= 768 /* AssertGenerator */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~980243797 /* FunctionExcludes */;
+        return transformFlags & ~601281857 /* FunctionExcludes */;
     }
     function computeFunctionExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22890,32 +22975,32 @@ var ts;
         }
         // An async function expression is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // function expressions with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If a FunctionExpression's subtree has marked the container as needing to capture the
         // lexical this, or the function contains parameters with initializers, then this node is
         // ES6 syntax.
-        if (subtreeFlags & 2621440 /* ES2015FunctionSyntaxMask */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        if (subtreeFlags & 163840 /* ES2015FunctionSyntaxMask */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         // If a FunctionExpression is generator function and is the body of a
         // transformed async function, then this node can be transformed to a
         // down-level generator.
         // Currently we do not support transforming any other generator fucntions
         // down level.
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-            transformFlags |= 12288 /* AssertGenerator */;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+            transformFlags |= 768 /* AssertGenerator */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~980243797 /* FunctionExcludes */;
+        return transformFlags & ~601281857 /* FunctionExcludes */;
     }
     function computeArrowFunction(node, subtreeFlags) {
         // An ArrowFunction is ES6 syntax, and excludes markers that should not escape the scope of an ArrowFunction.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // TypeScript-specific modifiers, type parameters, and type annotations are TypeScript
         // syntax.
         if (ts.hasModifier(node, 2270 /* TypeScriptModifier */)
@@ -22925,18 +23010,18 @@ var ts;
         }
         // An async arrow function is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // arrow functions with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If an ArrowFunction contains a lexical this, its container must capture the lexical this.
-        if (subtreeFlags & 262144 /* ContainsLexicalThis */) {
-            transformFlags |= 524288 /* ContainsCapturedLexicalThis */;
+        if (subtreeFlags & 16384 /* ContainsLexicalThis */) {
+            transformFlags |= 32768 /* ContainsCapturedLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~979719509 /* ArrowFunctionExcludes */;
+        return transformFlags & ~601249089 /* ArrowFunctionExcludes */;
     }
     function computePropertyAccess(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22945,28 +23030,24 @@ var ts;
         // If a PropertyAccessExpression starts with a super keyword, then it is
         // ES6 syntax, and requires a lexical `this` binding.
         if (expressionKind === 96 /* SuperKeyword */) {
-            transformFlags |= 262144 /* ContainsLexicalThis */;
+            transformFlags |= 16384 /* ContainsLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeVariableDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var nameKind = node.name.kind;
-        // A VariableDeclaration with an object binding pattern is ES2015 syntax
-        // and possibly ESNext syntax if it contains an object binding pattern
-        if (nameKind === 172 /* ObjectBindingPattern */) {
-            transformFlags |= 48 /* AssertESNext */ | 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
-        }
-        else if (nameKind === 173 /* ArrayBindingPattern */) {
-            transformFlags |= 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
+        transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+        // A VariableDeclaration containing ObjectRest is ESNext syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // Type annotations are TypeScript syntax.
         if (node.type) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeVariableStatement(node, subtreeFlags) {
         var transformFlags;
@@ -22978,22 +23059,22 @@ var ts;
         }
         else {
             transformFlags = subtreeFlags;
-            if (declarationListTransformFlags & 67108864 /* ContainsBindingPattern */) {
-                transformFlags |= 3072 /* AssertES2015 */;
+            if (declarationListTransformFlags & 8388608 /* ContainsBindingPattern */) {
+                transformFlags |= 192 /* AssertES2015 */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeLabeledStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         // A labeled statement containing a block scoped binding *may* need to be transformed from ES6.
-        if (subtreeFlags & 33554432 /* ContainsBlockScopedBinding */
+        if (subtreeFlags & 4194304 /* ContainsBlockScopedBinding */
             && ts.isIterationStatement(node, /*lookInLabeledStatements*/ true)) {
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeImportEquals(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -23002,18 +23083,18 @@ var ts;
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeExpressionStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         // If the expression of an expression statement is a destructuring assignment,
         // then we treat the statement as ES6 so that we can indicate that we do not
         // need to hold on to the right-hand side.
-        if (node.expression.transformFlags & 16384 /* DestructuringAssignment */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        if (node.expression.transformFlags & 1024 /* DestructuringAssignment */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeModuleDeclaration(node, subtreeFlags) {
         var transformFlags = 3 /* AssertTypeScript */;
@@ -23022,29 +23103,29 @@ var ts;
             transformFlags |= subtreeFlags;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~839734613 /* ModuleExcludes */;
+        return transformFlags & ~574674241 /* ModuleExcludes */;
     }
     function computeVariableDeclarationList(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 268435456 /* ContainsHoistedDeclarationOrCompletion */;
-        if (subtreeFlags & 67108864 /* ContainsBindingPattern */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 33554432 /* ContainsHoistedDeclarationOrCompletion */;
+        if (subtreeFlags & 8388608 /* ContainsBindingPattern */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         // If a VariableDeclarationList is `let` or `const`, then it is ES6 syntax.
         if (node.flags & 3 /* BlockScoped */) {
-            transformFlags |= 3072 /* AssertES2015 */ | 33554432 /* ContainsBlockScopedBinding */;
+            transformFlags |= 192 /* AssertES2015 */ | 4194304 /* ContainsBlockScopedBinding */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~604001621 /* VariableDeclarationListExcludes */;
+        return transformFlags & ~546309441 /* VariableDeclarationListExcludes */;
     }
     function computeOther(node, kind, subtreeFlags) {
         // Mark transformations needed for each node
         var transformFlags = subtreeFlags;
-        var excludeFlags = 536892757 /* NodeExcludes */;
+        var excludeFlags = 536872257 /* NodeExcludes */;
         switch (kind) {
             case 119 /* AsyncKeyword */:
             case 189 /* AwaitExpression */:
                 // async/await is ES2017 syntax
-                transformFlags |= 192 /* AssertES2017 */;
+                transformFlags |= 16 /* AssertES2017 */;
                 break;
             case 113 /* PublicKeyword */:
             case 111 /* PrivateKeyword */:
@@ -23070,11 +23151,11 @@ var ts;
             case 251 /* JsxSpreadAttribute */:
             case 252 /* JsxExpression */:
                 // These nodes are Jsx syntax.
-                transformFlags |= 12 /* AssertJsx */;
+                transformFlags |= 4 /* AssertJsx */;
                 break;
             case 213 /* ForOfStatement */:
                 // for-of might be ESNext if it has a rest destructuring
-                transformFlags |= 48 /* AssertESNext */;
+                transformFlags |= 8 /* AssertESNext */;
             // FALLTHROUGH
             case 12 /* NoSubstitutionTemplateLiteral */:
             case 13 /* TemplateHead */:
@@ -23085,11 +23166,11 @@ var ts;
             case 258 /* ShorthandPropertyAssignment */:
             case 114 /* StaticKeyword */:
                 // These nodes are ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 195 /* YieldExpression */:
                 // This node is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */ | 134217728 /* ContainsYield */;
+                transformFlags |= 192 /* AssertES2015 */ | 16777216 /* ContainsYield */;
                 break;
             case 118 /* AnyKeyword */:
             case 132 /* NumberKeyword */:
@@ -23130,8 +23211,8 @@ var ts;
                 // Even though computed property names are ES6, we don't treat them as such.
                 // This is so that they can flow through PropertyName transforms unaffected.
                 // Instead, we mark the container as ES6, so that it can properly handle the transform.
-                transformFlags |= 16777216 /* ContainsComputedPropertyName */;
-                if (subtreeFlags & 262144 /* ContainsLexicalThis */) {
+                transformFlags |= 2097152 /* ContainsComputedPropertyName */;
+                if (subtreeFlags & 16384 /* ContainsLexicalThis */) {
                     // A computed method name like `[this.getName()](x: string) { ... }` needs to
                     // distinguish itself from the normal case of a method body containing `this`:
                     // `this` inside a method doesn't need to be rewritten (the method provides `this`),
@@ -23140,66 +23221,69 @@ var ts;
                     // `_this = this; () => class K { [_this.getName()]() { ... } }`
                     // To make this distinction, use ContainsLexicalThisInComputedPropertyName
                     // instead of ContainsLexicalThis for computed property names
-                    transformFlags |= 1048576 /* ContainsLexicalThisInComputedPropertyName */;
+                    transformFlags |= 65536 /* ContainsLexicalThisInComputedPropertyName */;
                 }
                 break;
             case 196 /* SpreadElement */:
+                transformFlags |= 192 /* AssertES2015 */ | 524288 /* ContainsSpread */;
+                break;
             case 259 /* SpreadAssignment */:
-                // This node is ES6 or ES next syntax, but is handled by a containing node.
-                transformFlags |= 8388608 /* ContainsSpreadExpression */;
+                transformFlags |= 8 /* AssertESNext */ | 1048576 /* ContainsObjectSpread */;
                 break;
-            case 174 /* BindingElement */:
-                if (node.dotDotDotToken) {
-                    // this node is ES2015 or ES next syntax, but is handled by a containing node.
-                    transformFlags |= 8388608 /* ContainsSpreadExpression */;
-                }
             case 96 /* SuperKeyword */:
                 // This node is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 98 /* ThisKeyword */:
                 // Mark this node and its ancestors as containing a lexical `this` keyword.
-                transformFlags |= 262144 /* ContainsLexicalThis */;
+                transformFlags |= 16384 /* ContainsLexicalThis */;
                 break;
             case 172 /* ObjectBindingPattern */:
-            case 173 /* ArrayBindingPattern */:
-                // These nodes are ES2015 or ES Next syntax.
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-                    transformFlags |= 48 /* AssertESNext */ | 67108864 /* ContainsBindingPattern */;
+                transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+                if (subtreeFlags & 524288 /* ContainsRest */) {
+                    transformFlags |= 8 /* AssertESNext */ | 1048576 /* ContainsObjectRest */;
                 }
-                else {
-                    transformFlags |= 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
+                excludeFlags = 537396545 /* BindingPatternExcludes */;
+                break;
+            case 173 /* ArrayBindingPattern */:
+                transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+                excludeFlags = 537396545 /* BindingPatternExcludes */;
+                break;
+            case 174 /* BindingElement */:
+                transformFlags |= 192 /* AssertES2015 */;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 524288 /* ContainsRest */;
                 }
                 break;
             case 145 /* Decorator */:
                 // This node is TypeScript syntax, and marks its container as also being TypeScript syntax.
-                transformFlags |= 3 /* AssertTypeScript */ | 65536 /* ContainsDecorators */;
+                transformFlags |= 3 /* AssertTypeScript */ | 4096 /* ContainsDecorators */;
                 break;
             case 176 /* ObjectLiteralExpression */:
-                excludeFlags = 554784085 /* ObjectLiteralExcludes */;
-                if (subtreeFlags & 16777216 /* ContainsComputedPropertyName */) {
+                excludeFlags = 540087617 /* ObjectLiteralExcludes */;
+                if (subtreeFlags & 2097152 /* ContainsComputedPropertyName */) {
                     // If an ObjectLiteralExpression contains a ComputedPropertyName, then it
                     // is an ES6 node.
-                    transformFlags |= 3072 /* AssertES2015 */;
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
-                if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+                if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
                     // A computed property name containing `this` might need to be rewritten,
                     // so propagate the ContainsLexicalThis flag upward.
-                    transformFlags |= 262144 /* ContainsLexicalThis */;
+                    transformFlags |= 16384 /* ContainsLexicalThis */;
                 }
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+                if (subtreeFlags & 1048576 /* ContainsObjectSpread */) {
                     // If an ObjectLiteralExpression contains a spread element, then it
                     // is an ES next node.
-                    transformFlags |= 48 /* AssertESNext */;
+                    transformFlags |= 8 /* AssertESNext */;
                 }
                 break;
             case 175 /* ArrayLiteralExpression */:
             case 180 /* NewExpression */:
-                excludeFlags = 545281365 /* ArrayLiteralOrCallOrNewExcludes */;
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+                excludeFlags = 537396545 /* ArrayLiteralOrCallOrNewExcludes */;
+                if (subtreeFlags & 524288 /* ContainsSpread */) {
                     // If the this node contains a SpreadExpression, then it is an ES6
                     // node.
-                    transformFlags |= 3072 /* AssertES2015 */;
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 209 /* DoStatement */:
@@ -23207,19 +23291,19 @@ var ts;
             case 211 /* ForStatement */:
             case 212 /* ForInStatement */:
                 // A loop containing a block scoped binding *may* need to be transformed from ES6.
-                if (subtreeFlags & 33554432 /* ContainsBlockScopedBinding */) {
-                    transformFlags |= 3072 /* AssertES2015 */;
+                if (subtreeFlags & 4194304 /* ContainsBlockScopedBinding */) {
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 261 /* SourceFile */:
-                if (subtreeFlags & 524288 /* ContainsCapturedLexicalThis */) {
-                    transformFlags |= 3072 /* AssertES2015 */;
+                if (subtreeFlags & 32768 /* ContainsCapturedLexicalThis */) {
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 216 /* ReturnStatement */:
             case 214 /* ContinueStatement */:
             case 215 /* BreakStatement */:
-                transformFlags |= 268435456 /* ContainsHoistedDeclarationOrCompletion */;
+                transformFlags |= 33554432 /* ContainsHoistedDeclarationOrCompletion */;
                 break;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
@@ -23241,27 +23325,27 @@ var ts;
             case 179 /* CallExpression */:
             case 180 /* NewExpression */:
             case 175 /* ArrayLiteralExpression */:
-                return 545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+                return 537396545 /* ArrayLiteralOrCallOrNewExcludes */;
             case 230 /* ModuleDeclaration */:
-                return 839734613 /* ModuleExcludes */;
+                return 574674241 /* ModuleExcludes */;
             case 144 /* Parameter */:
-                return 604001621 /* ParameterExcludes */;
+                return 536872257 /* ParameterExcludes */;
             case 185 /* ArrowFunction */:
-                return 979719509 /* ArrowFunctionExcludes */;
+                return 601249089 /* ArrowFunctionExcludes */;
             case 184 /* FunctionExpression */:
             case 225 /* FunctionDeclaration */:
-                return 980243797 /* FunctionExcludes */;
+                return 601281857 /* FunctionExcludes */;
             case 224 /* VariableDeclarationList */:
-                return 604001621 /* VariableDeclarationListExcludes */;
+                return 546309441 /* VariableDeclarationListExcludes */;
             case 226 /* ClassDeclaration */:
             case 197 /* ClassExpression */:
-                return 559895893 /* ClassExcludes */;
+                return 539358529 /* ClassExcludes */;
             case 150 /* Constructor */:
-                return 975983957 /* ConstructorExcludes */;
+                return 601015617 /* ConstructorExcludes */;
             case 149 /* MethodDeclaration */:
             case 151 /* GetAccessor */:
             case 152 /* SetAccessor */:
-                return 975983957 /* MethodOrAccessorExcludes */;
+                return 601015617 /* MethodOrAccessorExcludes */;
             case 118 /* AnyKeyword */:
             case 132 /* NumberKeyword */:
             case 129 /* NeverKeyword */:
@@ -23279,9 +23363,14 @@ var ts;
             case 228 /* TypeAliasDeclaration */:
                 return -3 /* TypeExcludes */;
             case 176 /* ObjectLiteralExpression */:
-                return 554784085 /* ObjectLiteralExcludes */;
+                return 540087617 /* ObjectLiteralExcludes */;
+            case 256 /* CatchClause */:
+                return 537920833 /* CatchClauseExcludes */;
+            case 172 /* ObjectBindingPattern */:
+            case 173 /* ArrayBindingPattern */:
+                return 537396545 /* BindingPatternExcludes */;
             default:
-                return 536892757 /* NodeExcludes */;
+                return 536872257 /* NodeExcludes */;
         }
     }
     ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
@@ -23332,6 +23421,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -24100,6 +24190,7 @@ var ts;
             getJsxElementAttributesType: getJsxElementAttributesType,
             getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
             isOptionalParameter: isOptionalParameter,
+            tryGetMemberInModuleExports: tryGetMemberInModuleExports,
             tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
                 // we deliberately exclude augmentations
                 // since we are only interested in declarations of the module itself
@@ -24111,6 +24202,7 @@ var ts;
         var intersectionTypes = ts.createMap();
         var stringLiteralTypes = ts.createMap();
         var numericLiteralTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
         var evolvingArrayTypes = [];
         var unknownSymbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "unknown");
         var resolvingSymbol = createSymbol(67108864 /* Transient */, "__resolving__");
@@ -24130,7 +24222,6 @@ var ts;
         var voidType = createIntrinsicType(1024 /* Void */, "void");
         var neverType = createIntrinsicType(8192 /* Never */, "never");
         var silentNeverType = createIntrinsicType(8192 /* Never */, "never");
-        var stringOrNumberType = getUnionType([stringType, numberType]);
         var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
         var emptyTypeLiteralSymbol = createSymbol(2048 /* TypeLiteral */ | 67108864 /* Transient */, "__type");
         emptyTypeLiteralSymbol.members = ts.createMap();
@@ -24853,6 +24944,7 @@ var ts;
                     if (!errorLocation ||
                         !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                             !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                             !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                         error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                     }
@@ -24951,6 +25043,16 @@ var ts;
                     return undefined;
             }
         }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            if (meaning === 1920 /* Namespace */) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 /* Type */ & ~107455 /* Value */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
+                    return true;
+                }
+            }
+            return false;
+        }
         function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
             if (meaning & (107455 /* Value */ & ~1024 /* NamespaceModule */)) {
                 var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 /* Type */ & ~107455 /* Value */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined));
@@ -25079,31 +25181,31 @@ var ts;
             var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
             var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
             if (targetSymbol) {
-                var name_17 = specifier.propertyName || specifier.name;
-                if (name_17.text) {
+                var name_16 = specifier.propertyName || specifier.name;
+                if (name_16.text) {
                     if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                         return moduleSymbol;
                     }
                     var symbolFromVariable = void 0;
                     // First check if module was specified with "export=". If so, get the member from the resolved type
                     if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
-                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_17.text);
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_16.text);
                     }
                     else {
-                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_17.text);
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_16.text);
                     }
                     // if symbolFromVariable is export - get its final target
                     symbolFromVariable = resolveSymbol(symbolFromVariable);
-                    var symbolFromModule = getExportOfModule(targetSymbol, name_17.text);
+                    var symbolFromModule = getExportOfModule(targetSymbol, name_16.text);
                     // If the export member we're looking for is default, and there is no real default but allowSyntheticDefaultImports is on, return the entire module as the default
-                    if (!symbolFromModule && allowSyntheticDefaultImports && name_17.text === "default") {
+                    if (!symbolFromModule && allowSyntheticDefaultImports && name_16.text === "default") {
                         symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                     }
                     var symbol = symbolFromModule && symbolFromVariable ?
                         combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                         symbolFromModule || symbolFromVariable;
                     if (!symbol) {
-                        error(name_17, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_17));
+                        error(name_16, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_16));
                     }
                     return symbol;
                 }
@@ -25357,6 +25459,12 @@ var ts;
         function getExportsOfModuleAsArray(moduleSymbol) {
             return symbolsToArray(getExportsOfModule(moduleSymbol));
         }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable[memberName];
+            }
+        }
         function getExportsOfSymbol(symbol) {
             return symbol.flags & 1536 /* Module */ ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
         }
@@ -25967,9 +26075,9 @@ var ts;
                     if (!accessibleSymbolChain ||
                         needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
                         // Go up and add our parent.
-                        var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
-                        if (parent_6) {
-                            walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), /*endOfChain*/ false);
+                        var parent_5 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
+                        if (parent_5) {
+                            walkSymbol(parent_5, getQualifiedLeftMeaning(meaning), /*endOfChain*/ false);
                         }
                     }
                     if (accessibleSymbolChain) {
@@ -26119,14 +26227,14 @@ var ts;
                             while (i < length_1) {
                                 // Find group of type arguments for type parameters with the same declaring container.
                                 var start = i;
-                                var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                 do {
                                     i++;
-                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
+                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                 // When type parameters are their own type arguments for the whole group (i.e. we have
                                 // the default outer type arguments), we don't show the group.
                                 if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
-                                    writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
+                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                     writePunctuation(writer, 22 /* DotToken */);
                                 }
                             }
@@ -26565,14 +26673,14 @@ var ts;
                         if (ts.isExternalModuleAugmentation(node)) {
                             return true;
                         }
-                        var parent_8 = getDeclarationContainer(node);
+                        var parent_7 = getDeclarationContainer(node);
                         // If the node is not exported or it is not ambient module element (except import declaration)
                         if (!(ts.getCombinedModifierFlags(node) & 1 /* Export */) &&
-                            !(node.kind !== 234 /* ImportEqualsDeclaration */ && parent_8.kind !== 261 /* SourceFile */ && ts.isInAmbientContext(parent_8))) {
-                            return isGlobalSourceFile(parent_8);
+                            !(node.kind !== 234 /* ImportEqualsDeclaration */ && parent_7.kind !== 261 /* SourceFile */ && ts.isInAmbientContext(parent_7))) {
+                            return isGlobalSourceFile(parent_7);
                         }
                         // Exported members/ambient module elements (exception import declaration) are visible if parent is visible
-                        return isDeclarationVisible(parent_8);
+                        return isDeclarationVisible(parent_7);
                     case 147 /* PropertyDeclaration */:
                     case 146 /* PropertySignature */:
                     case 151 /* GetAccessor */:
@@ -26757,15 +26865,15 @@ var ts;
             return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, /*includeOptionality*/ false);
         }
         function isComputedNonLiteralName(name) {
-            return name.kind === 142 /* ComputedPropertyName */ && !ts.isStringOrNumericLiteral(name.expression.kind);
+            return name.kind === 142 /* ComputedPropertyName */ && !ts.isStringOrNumericLiteral(name.expression);
         }
         function getRestType(source, properties, symbol) {
             ts.Debug.assert(!!(source.flags & 32768 /* Object */), "Rest types only support object types right now.");
             var members = ts.createMap();
             var names = ts.createMap();
             for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
-                var name_18 = properties_2[_i];
-                names[ts.getTextOfPropertyName(name_18)] = true;
+                var name_17 = properties_2[_i];
+                names[ts.getTextOfPropertyName(name_17)] = true;
             }
             for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
                 var prop = _b[_a];
@@ -26808,7 +26916,7 @@ var ts;
                     var literalMembers = [];
                     for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                         var element = _a[_i];
-                        if (element.kind !== 198 /* OmittedExpression */ && !element.dotDotDotToken) {
+                        if (!element.dotDotDotToken) {
                             literalMembers.push(element.propertyName || element.name);
                         }
                     }
@@ -26816,8 +26924,8 @@ var ts;
                 }
                 else {
                     // Use explicitly specified property name ({ p: xxx } form), or otherwise the implied name ({ p } form)
-                    var name_19 = declaration.propertyName || declaration.name;
-                    if (isComputedNonLiteralName(name_19)) {
+                    var name_18 = declaration.propertyName || declaration.name;
+                    if (isComputedNonLiteralName(name_18)) {
                         // computed properties with non-literal names are treated as 'any'
                         return anyType;
                     }
@@ -26826,12 +26934,12 @@ var ts;
                     }
                     // Use type of the specified property, or otherwise, for a numeric name, the type of the numeric index signature,
                     // or otherwise the type of the string index signature.
-                    var text = ts.getTextOfPropertyName(name_19);
+                    var text = ts.getTextOfPropertyName(name_18);
                     type = getTypeOfPropertyOfType(parentType, text) ||
                         isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1 /* Number */) ||
                         getIndexTypeOfType(parentType, 0 /* String */);
                     if (!type) {
-                        error(name_19, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_19));
+                        error(name_18, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_18));
                         return unknownType;
                     }
                 }
@@ -26872,33 +26980,9 @@ var ts;
                 type;
         }
         function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
-            if (jsDocType) {
-                return getTypeFromTypeNode(jsDocType);
-            }
-        }
-        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            // First, see if this node has an @type annotation on it directly.
-            var typeTag = ts.getJSDocTypeTag(declaration);
-            if (typeTag && typeTag.typeExpression) {
-                return typeTag.typeExpression.type;
-            }
-            if (declaration.kind === 223 /* VariableDeclaration */ &&
-                declaration.parent.kind === 224 /* VariableDeclarationList */ &&
-                declaration.parent.parent.kind === 205 /* VariableStatement */) {
-                // @type annotation might have been on the variable statement, try that instead.
-                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
-                if (annotation && annotation.typeExpression) {
-                    return annotation.typeExpression.type;
-                }
-            }
-            else if (declaration.kind === 144 /* Parameter */) {
-                // If it's a parameter, see if the parent has a jsdoc comment with an @param
-                // annotation.
-                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
-                if (paramTag && paramTag.typeExpression) {
-                    return paramTag.typeExpression.type;
-                }
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
             }
             return undefined;
         }
@@ -26924,9 +27008,11 @@ var ts;
                     return type;
                 }
             }
-            // A variable declared in a for..in statement is always of type string
+            // A variable declared in a for..in statement is of type string, or of type keyof T when the
+            // right hand expression is of a type parameter type.
             if (declaration.parent.parent.kind === 212 /* ForInStatement */) {
-                return stringType;
+                var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
+                return indexType.flags & (16384 /* TypeParameter */ | 262144 /* Index */) ? indexType : stringType;
             }
             if (declaration.parent.parent.kind === 213 /* ForOfStatement */) {
                 // checkRightHandSideOfForOf will return undefined if the for-of expression type was
@@ -26942,9 +27028,11 @@ var ts;
             if (declaration.type) {
                 return addOptionality(getTypeFromTypeNode(declaration.type), /*optional*/ declaration.questionToken && includeOptionality);
             }
-            if (declaration.kind === 223 /* VariableDeclaration */ && !ts.isBindingPattern(declaration.name) &&
+            if ((compilerOptions.noImplicitAny || declaration.flags & 2097152 /* JavaScriptFile */) &&
+                declaration.kind === 223 /* VariableDeclaration */ && !ts.isBindingPattern(declaration.name) &&
                 !(ts.getCombinedModifierFlags(declaration) & 1 /* Export */) && !ts.isInAmbientContext(declaration)) {
-                // Use control flow tracked 'any' type for non-ambient, non-exported var or let variables with no
+                // If --noImplicitAny is on or the declaration is in a Javascript file,
+                // use control flow tracked 'any' type for non-ambient, non-exported var or let variables with no
                 // initializer or a 'null' or 'undefined' initializer.
                 if (!(ts.getCombinedNodeFlags(declaration) & 2 /* Const */) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                     return autoType;
@@ -27123,7 +27211,7 @@ var ts;
                 if (declaration.kind === 240 /* ExportAssignment */) {
                     return links.type = checkExpression(declaration.expression);
                 }
-                if (declaration.flags & 2097152 /* JavaScriptFile */ && declaration.kind === 285 /* JSDocPropertyTag */ && declaration.typeExpression) {
+                if (declaration.flags & 2097152 /* JavaScriptFile */ && declaration.kind === 286 /* JSDocPropertyTag */ && declaration.typeExpression) {
                     return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
                 }
                 // Handle variable, parameter or property
@@ -27140,9 +27228,9 @@ var ts;
                     declaration.kind === 177 /* PropertyAccessExpression */ && declaration.parent.kind === 192 /* BinaryExpression */) {
                     // Use JS Doc type if present on parent expression statement
                     if (declaration.flags & 2097152 /* JavaScriptFile */) {
-                        var typeTag = ts.getJSDocTypeTag(declaration.parent);
-                        if (typeTag && typeTag.typeExpression) {
-                            return links.type = getTypeFromTypeNode(typeTag.typeExpression.type);
+                        var jsdocType = ts.getJSDocType(declaration.parent);
+                        if (jsdocType) {
+                            return links.type = getTypeFromTypeNode(jsdocType);
                         }
                     }
                     var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 /* BinaryExpression */ ?
@@ -27477,6 +27565,14 @@ var ts;
                 }
                 baseType = getReturnTypeOfSignature(constructors[0]);
             }
+            // In a JS file, you can use the @augments jsdoc tag to specify a base type with type parameters
+            var valueDecl = type.symbol.valueDeclaration;
+            if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
+                var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
+                if (augTag) {
+                    baseType = getTypeFromTypeNode(augTag.typeExpression.type);
+                }
+            }
             if (baseType === unknownType) {
                 return;
             }
@@ -27485,7 +27581,7 @@ var ts;
                 return;
             }
             if (type === baseType || hasBaseType(baseType, type)) {
-                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
+                error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
                 return;
             }
             if (type.resolvedBaseTypes === emptyArray) {
@@ -27599,7 +27695,7 @@ var ts;
                 if (!pushTypeResolution(symbol, 2 /* DeclaredType */)) {
                     return unknownType;
                 }
-                var declaration = ts.getDeclarationOfKind(symbol, 284 /* JSDocTypedefTag */);
+                var declaration = ts.getDeclarationOfKind(symbol, 285 /* JSDocTypedefTag */);
                 var type = void 0;
                 if (declaration) {
                     if (declaration.jsDocTypeLiteral) {
@@ -28123,6 +28219,8 @@ var ts;
             var members = ts.createMap();
             var stringIndexInfo;
             var numberIndexInfo;
+            // Resolve upfront such that recursive references see an empty object type.
+            setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
             // In { [P in K]: T }, we refer to P as the type parameter type, K as the constraint type,
             // and T as the template type.
             var typeParameter = getTypeParameterFromMappedType(type);
@@ -28180,6 +28278,9 @@ var ts;
                     instantiateType(getTypeFromTypeNode(type.declaration.type), type.mapper || identityMapper) :
                     unknownType);
         }
+        function getErasedTemplateTypeFromMappedType(type) {
+            return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
+        }
         function isGenericMappedType(type) {
             if (getObjectFlags(type) & 32 /* Mapped */) {
                 var constraintType = getConstraintTypeFromMappedType(type);
@@ -28278,18 +28379,25 @@ var ts;
             return type.resolvedApparentType;
         }
         /**
+         * The apparent type of an indexed access T[K] is the type of T's string index signature, if any.
+         */
+        function getApparentTypeOfIndexedAccess(type) {
+            return getIndexTypeOfType(getApparentType(type.objectType), 0 /* String */) || type;
+        }
+        /**
          * For a type parameter, return the base constraint of the type parameter. For the string, number,
          * boolean, and symbol primitive types, return the corresponding object types. Otherwise return the
          * type itself. Note that the apparent type of a union type is the union type itself.
          */
         function getApparentType(type) {
-            var t = type.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(type) : type;
-            return t.flags & 34 /* StringLike */ ? globalStringType :
+            var t = type.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(type) :
+                type.flags & 524288 /* IndexedAccess */ ? getApparentTypeOfIndexedAccess(type) :
+                    type;
+            return t.flags & 262178 /* StringLike */ ? globalStringType :
                 t.flags & 340 /* NumberLike */ ? globalNumberType :
                     t.flags & 136 /* BooleanLike */ ? globalBooleanType :
                         t.flags & 512 /* ESSymbol */ ? getGlobalESSymbolType() :
-                            t.flags & 262144 /* Index */ ? stringOrNumberType :
-                                t;
+                            t;
         }
         function createUnionOrIntersectionProperty(containingType, name) {
             var types = containingType.types;
@@ -28487,13 +28595,16 @@ var ts;
                 if (node.type && node.type.kind === 273 /* JSDocOptionalType */) {
                     return true;
                 }
-                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
-                if (paramTag) {
-                    if (paramTag.isBracketed) {
-                        return true;
-                    }
-                    if (paramTag.typeExpression) {
-                        return paramTag.typeExpression.type.kind === 273 /* JSDocOptionalType */;
+                var paramTags = ts.getJSDocParameterTags(node);
+                if (paramTags) {
+                    for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
+                        var paramTag = paramTags_1[_i];
+                        if (paramTag.isBracketed) {
+                            return true;
+                        }
+                        if (paramTag.typeExpression) {
+                            return paramTag.typeExpression.type.kind === 273 /* JSDocOptionalType */;
+                        }
                     }
                 }
             }
@@ -29408,10 +29519,14 @@ var ts;
         }
         function getIndexType(type) {
             return type.flags & 16384 /* TypeParameter */ ? getIndexTypeForTypeParameter(type) :
-                type.flags & 1 /* Any */ || getIndexInfoOfType(type, 0 /* String */) ? stringOrNumberType :
-                    getIndexInfoOfType(type, 1 /* Number */) ? getUnionType([numberType, getLiteralTypeFromPropertyNames(type)]) :
+                getObjectFlags(type) & 32 /* Mapped */ ? getConstraintTypeFromMappedType(type) :
+                    type.flags & 1 /* Any */ || getIndexInfoOfType(type, 0 /* String */) ? stringType :
                         getLiteralTypeFromPropertyNames(type);
         }
+        function getIndexTypeOrString(type) {
+            var indexType = getIndexType(type);
+            return indexType !== neverType ? indexType : stringType;
+        }
         function getTypeFromTypeOperatorNode(node) {
             var links = getNodeLinks(node);
             if (!links.resolvedType) {
@@ -29425,10 +29540,6 @@ var ts;
             type.indexType = indexType;
             return type;
         }
-        function getIndexedAccessTypeForTypeParameter(objectType, indexType) {
-            var indexedAccessTypes = indexType.resolvedIndexedAccessTypes || (indexType.resolvedIndexedAccessTypes = []);
-            return indexedAccessTypes[objectType.id] || (indexedAccessTypes[objectType.id] = createIndexedAccessType(objectType, indexType));
-        }
         function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
             var accessExpression = accessNode && accessNode.kind === 178 /* ElementAccessExpression */ ? accessNode : undefined;
             var propName = indexType.flags & (32 /* StringLiteral */ | 64 /* NumberLiteral */ | 256 /* EnumLiteral */) ?
@@ -29451,7 +29562,7 @@ var ts;
                     return getTypeOfSymbol(prop);
                 }
             }
-            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 34 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
+            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
                 if (isTypeAny(objectType)) {
                     return anyType;
                 }
@@ -29491,20 +29602,46 @@ var ts;
             }
             return unknownType;
         }
+        function getIndexedAccessForMappedType(type, indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 178 /* ElementAccessExpression */ ? accessNode : undefined;
+            if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
+                error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
+                return unknownType;
+            }
+            var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
+            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
+            return addOptionality(instantiateType(getTemplateTypeFromMappedType(type), templateMapper), !!type.declaration.questionToken);
+        }
         function getIndexedAccessType(objectType, indexType, accessNode) {
-            if (indexType.flags & 16384 /* TypeParameter */) {
-                if (accessNode && !isTypeAssignableTo(getConstraintOfTypeParameter(indexType) || emptyObjectType, getIndexType(objectType))) {
-                    error(accessNode, ts.Diagnostics.Type_0_is_not_constrained_to_keyof_1, typeToString(indexType), typeToString(objectType));
-                    return unknownType;
+            if (indexType.flags & 16384 /* TypeParameter */ ||
+                objectType.flags & 16384 /* TypeParameter */ && indexType.flags & 262144 /* Index */ ||
+                isGenericMappedType(objectType)) {
+                // If either the object type or the index type are type parameters, or if the object type is a mapped
+                // type with a generic constraint, we are performing a higher-order index access where we cannot
+                // meaningfully access the properties of the object type. In those cases, we first check that the
+                // index type is assignable to 'keyof T' for the object type.
+                if (accessNode) {
+                    if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
+                        error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+                        return unknownType;
+                    }
                 }
-                return getIndexedAccessTypeForTypeParameter(objectType, indexType);
+                // If the object type is a mapped type { [P in K]: E }, we instantiate E using a mapper that substitutes
+                // the index type for P. For example, for an index access { [P in K]: Box<T[P]> }[X], we construct the
+                // type Box<T[X]>.
+                if (isGenericMappedType(objectType)) {
+                    return getIndexedAccessForMappedType(objectType, indexType, accessNode);
+                }
+                // Otherwise we defer the operation by creating an indexed access type.
+                var id = objectType.id + "," + indexType.id;
+                return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
             }
-            var apparentType = getApparentType(objectType);
+            var apparentObjectType = getApparentType(objectType);
             if (indexType.flags & 65536 /* Union */ && !(indexType.flags & 8190 /* Primitive */)) {
                 var propTypes = [];
                 for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                     var t = _a[_i];
-                    var propType = getPropertyTypeForIndexType(apparentType, t, accessNode, /*cacheSymbol*/ false);
+                    var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, /*cacheSymbol*/ false);
                     if (propType === unknownType) {
                         return unknownType;
                     }
@@ -29512,7 +29649,7 @@ var ts;
                 }
                 return getUnionType(propTypes);
             }
-            return getPropertyTypeForIndexType(apparentType, indexType, accessNode, /*cacheSymbol*/ true);
+            return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, /*cacheSymbol*/ true);
         }
         function getTypeFromIndexedAccessTypeNode(node) {
             var links = getNodeLinks(node);
@@ -29529,6 +29666,9 @@ var ts;
                 type.aliasSymbol = getAliasSymbolForTypeNode(node);
                 type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                 links.resolvedType = type;
+                // Eagerly resolve the constraint type which forces an error if the constraint type circularly
+                // references itself through one or more type aliases.
+                getConstraintTypeFromMappedType(type);
             }
             return links.resolvedType;
         }
@@ -29705,18 +29845,18 @@ var ts;
                     return nullType;
                 case 129 /* NeverKeyword */:
                     return neverType;
-                case 288 /* JSDocNullKeyword */:
+                case 289 /* JSDocNullKeyword */:
                     return nullType;
-                case 289 /* JSDocUndefinedKeyword */:
+                case 290 /* JSDocUndefinedKeyword */:
                     return undefinedType;
-                case 290 /* JSDocNeverKeyword */:
+                case 291 /* JSDocNeverKeyword */:
                     return neverType;
                 case 167 /* ThisType */:
                 case 98 /* ThisKeyword */:
                     return getTypeFromThisTypeNode(node);
                 case 171 /* LiteralType */:
                     return getTypeFromLiteralTypeNode(node);
-                case 287 /* JSDocLiteralType */:
+                case 288 /* JSDocLiteralType */:
                     return getTypeFromLiteralTypeNode(node.literal);
                 case 157 /* TypeReference */:
                 case 272 /* JSDocTypeReference */:
@@ -29749,7 +29889,7 @@ var ts;
                 case 158 /* FunctionType */:
                 case 159 /* ConstructorType */:
                 case 161 /* TypeLiteral */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 274 /* JSDocFunctionType */:
                     return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                 case 168 /* TypeOperator */:
@@ -29920,6 +30060,33 @@ var ts;
             return result;
         }
         function instantiateMappedType(type, mapper) {
+            // Check if we have an isomorphic mapped type, i.e. a type of the form { [P in keyof T]: X } for some
+            // type parameter T. If so, the mapped type is distributive over a union type and when T is instantiated
+            // to a union type A | B, we produce { [P in keyof A]: X } | { [P in keyof B]: X }. Furthermore, for
+            // isomorphic mapped types we leave primitive types alone. For example, when T is instantiated to a
+            // union type A | undefined, we produce { [P in keyof A]: X } | undefined.
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 262144 /* Index */) {
+                var typeParameter_1 = constraintType.type;
+                var mappedTypeParameter = mapper(typeParameter_1);
+                if (typeParameter_1 !== mappedTypeParameter) {
+                    return mapType(mappedTypeParameter, function (t) {
+                        if (isMappableType(t)) {
+                            var replacementMapper = createUnaryTypeMapper(typeParameter_1, t);
+                            var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
+                            combinedMapper.mappedTypes = mapper.mappedTypes;
+                            return instantiateMappedObjectType(type, combinedMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateMappedObjectType(type, mapper);
+        }
+        function isMappableType(type) {
+            return type.flags & (16384 /* TypeParameter */ | 32768 /* Object */ | 131072 /* Intersection */ | 524288 /* IndexedAccess */);
+        }
+        function instantiateMappedObjectType(type, mapper) {
             var result = createObjectType(32 /* Mapped */ | 64 /* Instantiated */, type.symbol);
             result.declaration = type.declaration;
             result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
@@ -30337,7 +30504,7 @@ var ts;
                 return false;
             if (target.flags & 1 /* Any */ || source.flags & 8192 /* Never */)
                 return true;
-            if (source.flags & 34 /* StringLike */ && target.flags & 2 /* String */)
+            if (source.flags & 262178 /* StringLike */ && target.flags & 2 /* String */)
                 return true;
             if (source.flags & 340 /* NumberLike */ && target.flags & 4 /* Number */)
                 return true;
@@ -30476,12 +30643,6 @@ var ts;
                 }
                 if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                     return -1 /* True */;
-                if (source.flags & 262144 /* Index */) {
-                    // A keyof T is related to a union type containing both string and number
-                    if (maybeTypeOfKind(target, 2 /* String */) && maybeTypeOfKind(target, 4 /* Number */)) {
-                        return -1 /* True */;
-                    }
-                }
                 if (getObjectFlags(source) & 128 /* ObjectLiteral */ && source.flags & 1048576 /* FreshLiteral */) {
                     if (hasExcessProperties(source, target, reportErrors)) {
                         if (reportErrors) {
@@ -30541,12 +30702,24 @@ var ts;
                     }
                 }
                 if (target.flags & 16384 /* TypeParameter */) {
-                    // Given a type parameter K with a constraint keyof T, a type S is
-                    // assignable to K if S is assignable to keyof T.
-                    var constraint = getConstraintOfTypeParameter(target);
-                    if (constraint && constraint.flags & 262144 /* Index */) {
-                        if (result = isRelatedTo(source, constraint, reportErrors)) {
-                            return result;
+                    // A source type { [P in keyof T]: X } is related to a target type T if X is related to T[P].
+                    if (getObjectFlags(source) & 32 /* Mapped */ && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
+                        if (!source.declaration.questionToken) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        // Given a type parameter K with a constraint keyof T, a type S is
+                        // assignable to K if S is assignable to keyof T.
+                        var constraint = getConstraintOfTypeParameter(target);
+                        if (constraint && constraint.flags & 262144 /* Index */) {
+                            if (result = isRelatedTo(source, constraint, reportErrors)) {
+                                return result;
+                            }
                         }
                     }
                 }
@@ -30566,18 +30739,37 @@ var ts;
                         }
                     }
                 }
+                else if (target.flags & 524288 /* IndexedAccess */) {
+                    // if we have indexed access types with identical index types, see if relationship holds for
+                    // the two object types.
+                    if (source.flags & 524288 /* IndexedAccess */ && source.indexType === target.indexType) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                }
                 if (source.flags & 16384 /* TypeParameter */) {
-                    var constraint = getConstraintOfTypeParameter(source);
-                    if (!constraint || constraint.flags & 1 /* Any */) {
-                        constraint = emptyObjectType;
-                    }
-                    // The constraint may need to be further instantiated with its 'this' type.
-                    constraint = getTypeWithThisArgument(constraint, source);
-                    // Report constraint errors only if the constraint is not the empty object type
-                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
-                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
-                        errorInfo = saveErrorInfo;
-                        return result;
+                    // A source type T is related to a target type { [P in keyof T]: X } if T[P] is related to X.
+                    if (getObjectFlags(target) & 32 /* Mapped */ && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
+                        var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
+                        var templateType = getTemplateTypeFromMappedType(target);
+                        if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(source);
+                        if (!constraint || constraint.flags & 1 /* Any */) {
+                            constraint = emptyObjectType;
+                        }
+                        // The constraint may need to be further instantiated with its 'this' type.
+                        constraint = getTypeWithThisArgument(constraint, source);
+                        // Report constraint errors only if the constraint is not the empty object type
+                        var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+                        if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
+                        }
                     }
                 }
                 else {
@@ -30587,29 +30779,18 @@ var ts;
                             return result;
                         }
                     }
-                    if (isGenericMappedType(target)) {
-                        // A type [P in S]: X is related to a type [P in T]: Y if T is related to S and X is related to Y.
-                        if (isGenericMappedType(source)) {
-                            if ((result = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) &&
-                                (result = isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors))) {
-                                return result;
-                            }
-                        }
-                    }
-                    else {
-                        // Even if relationship doesn't hold for unions, intersections, or generic type references,
-                        // it may hold in a structural comparison.
-                        var apparentSource = getApparentType(source);
-                        // In a check of the form X = A & B, we will have previously checked if A relates to X or B relates
-                        // to X. Failing both of those we want to check if the aggregation of A and B's members structurally
-                        // relates to X. Thus, we include intersection types on the source side here.
-                        if (apparentSource.flags & (32768 /* Object */ | 131072 /* Intersection */) && target.flags & 32768 /* Object */) {
-                            // Report structural errors only if we haven't reported any errors yet
-                            var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190 /* Primitive */);
-                            if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
-                                errorInfo = saveErrorInfo;
-                                return result;
-                            }
+                    // Even if relationship doesn't hold for unions, intersections, or generic type references,
+                    // it may hold in a structural comparison.
+                    var apparentSource = getApparentType(source);
+                    // In a check of the form X = A & B, we will have previously checked if A relates to X or B relates
+                    // to X. Failing both of those we want to check if the aggregation of A and B's members structurally
+                    // relates to X. Thus, we include intersection types on the source side here.
+                    if (apparentSource.flags & (32768 /* Object */ | 131072 /* Intersection */) && target.flags & 32768 /* Object */) {
+                        // Report structural errors only if we haven't reported any errors yet
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190 /* Primitive */);
+                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
                         }
                     }
                 }
@@ -30832,6 +31013,9 @@ var ts;
                 if (expandingFlags === 3) {
                     result = 1 /* Maybe */;
                 }
+                else if (isGenericMappedType(source) || isGenericMappedType(target)) {
+                    result = mappedTypeRelatedTo(source, target, reportErrors);
+                }
                 else {
                     result = propertiesRelatedTo(source, target, reportErrors);
                     if (result) {
@@ -30862,6 +31046,34 @@ var ts;
                 }
                 return result;
             }
+            // A type [P in S]: X is related to a type [P in T]: Y if T is related to S and X is related to Y.
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                if (isGenericMappedType(target)) {
+                    if (isGenericMappedType(source)) {
+                        var result_2;
+                        if (relation === identityRelation) {
+                            var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
+                            var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
+                            if (readonlyMatches && optionalMatches) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                        else {
+                            if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (relation !== identityRelation && isEmptyObjectType(resolveStructuredTypeMembers(target))) {
+                    return -1 /* True */;
+                }
+                return 0 /* False */;
+            }
             function propertiesRelatedTo(source, target, reportErrors) {
                 if (relation === identityRelation) {
                     return propertiesIdenticalTo(source, target);
@@ -31401,7 +31613,7 @@ var ts;
                 return type;
             }
             var types = [type];
-            if (flags & 34 /* StringLike */)
+            if (flags & 262178 /* StringLike */)
                 types.push(emptyStringType);
             if (flags & 340 /* NumberLike */)
                 types.push(zeroType);
@@ -31791,19 +32003,6 @@ var ts;
                     }
                 }
                 else {
-                    if (getObjectFlags(target) & 32 /* Mapped */) {
-                        var constraintType = getConstraintTypeFromMappedType(target);
-                        if (getObjectFlags(source) & 32 /* Mapped */) {
-                            inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
-                            inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                        if (constraintType.flags & 16384 /* TypeParameter */) {
-                            inferFromTypes(getIndexType(source), constraintType);
-                            inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                    }
                     source = getApparentType(source);
                     if (source.flags & 32768 /* Object */) {
                         if (isInProcess(source, target)) {
@@ -31824,14 +32023,30 @@ var ts;
                         sourceStack[depth] = source;
                         targetStack[depth] = target;
                         depth++;
-                        inferFromProperties(source, target);
-                        inferFromSignatures(source, target, 0 /* Call */);
-                        inferFromSignatures(source, target, 1 /* Construct */);
-                        inferFromIndexTypes(source, target);
+                        inferFromObjectTypes(source, target);
                         depth--;
                     }
                 }
             }
+            function inferFromObjectTypes(source, target) {
+                if (getObjectFlags(target) & 32 /* Mapped */) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (getObjectFlags(source) & 32 /* Mapped */) {
+                        inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
+                        inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                    if (constraintType.flags & 16384 /* TypeParameter */) {
+                        inferFromTypes(getIndexType(source), constraintType);
+                        inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                }
+                inferFromProperties(source, target);
+                inferFromSignatures(source, target, 0 /* Call */);
+                inferFromSignatures(source, target, 1 /* Construct */);
+                inferFromIndexTypes(source, target);
+            }
             function inferFromProperties(source, target) {
                 var properties = getPropertiesOfObjectType(target);
                 for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
@@ -32200,7 +32415,7 @@ var ts;
         }
         function getTypeWithDefault(type, defaultExpression) {
             if (defaultExpression) {
-                var defaultType = checkExpression(defaultExpression);
+                var defaultType = getTypeOfExpression(defaultExpression);
                 return getUnionType([getTypeWithFacts(type, 131072 /* NEUndefined */), defaultType]);
             }
             return type;
@@ -32223,7 +32438,7 @@ var ts;
         function getAssignedTypeOfBinaryExpression(node) {
             return node.parent.kind === 175 /* ArrayLiteralExpression */ || node.parent.kind === 257 /* PropertyAssignment */ ?
                 getTypeWithDefault(getAssignedType(node), node.right) :
-                checkExpression(node.right);
+                getTypeOfExpression(node.right);
         }
         function getAssignedTypeOfArrayLiteralElement(node, element) {
             return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
@@ -32274,7 +32489,7 @@ var ts;
             // from its initializer, we'll already have cached the type. Otherwise we compute it now
             // without caching such that transient types are reflected.
             var links = getNodeLinks(node);
-            return links.resolvedType || checkExpression(node);
+            return links.resolvedType || getTypeOfExpression(node);
         }
         function getInitialTypeOfVariableDeclaration(node) {
             if (node.initializer) {
@@ -32327,7 +32542,7 @@ var ts;
         }
         function getTypeOfSwitchClause(clause) {
             if (clause.kind === 253 /* CaseClause */) {
-                var caseType = getRegularTypeOfLiteralType(checkExpression(clause.expression));
+                var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
                 return isUnitType(caseType) ? caseType : undefined;
             }
             return neverType;
@@ -32419,7 +32634,7 @@ var ts;
         // we defer subtype reduction until the evolving array type is finalized into a manifest
         // array type.
         function addEvolvingArrayElementType(evolvingArrayType, node) {
-            var elementType = getBaseTypeOfLiteralType(checkExpression(node));
+            var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
             return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
         }
         function createFinalArrayType(elementType) {
@@ -32473,7 +32688,7 @@ var ts;
                 parent.parent.operatorToken.kind === 57 /* EqualsToken */ &&
                 parent.parent.left === parent &&
                 !ts.isAssignmentTarget(parent.parent) &&
-                isTypeAnyOrAllConstituentTypesHaveKind(checkExpression(parent.argumentExpression), 340 /* NumberLike */ | 2048 /* Undefined */);
+                isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 /* NumberLike */ | 2048 /* Undefined */);
             return isLengthPushOrUnshift || isElementAssignment;
         }
         function maybeTypePredicateCall(node) {
@@ -32630,7 +32845,7 @@ var ts;
                             }
                         }
                         else {
-                            var indexType = checkExpression(node.left.argumentExpression);
+                            var indexType = getTypeOfExpression(node.left.argumentExpression);
                             if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 /* NumberLike */ | 2048 /* Undefined */)) {
                                 evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                             }
@@ -32848,7 +33063,7 @@ var ts;
                 if (operator === 32 /* ExclamationEqualsToken */ || operator === 34 /* ExclamationEqualsEqualsToken */) {
                     assumeTrue = !assumeTrue;
                 }
-                var valueType = checkExpression(value);
+                var valueType = getTypeOfExpression(value);
                 if (valueType.flags & 6144 /* Nullable */) {
                     if (!strictNullChecks) {
                         return type;
@@ -32930,7 +33145,7 @@ var ts;
                     return type;
                 }
                 // Check that right operand is a function type with a prototype property
-                var rightType = checkExpression(expr.right);
+                var rightType = getTypeOfExpression(expr.right);
                 if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                     return type;
                 }
@@ -32961,18 +33176,18 @@ var ts;
                     }
                 }
                 if (targetType) {
-                    return getNarrowedType(type, targetType, assumeTrue);
+                    return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
                 }
                 return type;
             }
-            function getNarrowedType(type, candidate, assumeTrue) {
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
                 if (!assumeTrue) {
-                    return filterType(type, function (t) { return !isTypeInstanceOf(t, candidate); });
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
                 }
                 // If the current type is a union type, remove all constituents that couldn't be instances of
                 // the candidate type. If one or more constituents remain, return a union of those.
                 if (type.flags & 65536 /* Union */) {
-                    var assignableType = filterType(type, function (t) { return isTypeInstanceOf(t, candidate); });
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                     if (!(assignableType.flags & 8192 /* Never */)) {
                         return assignableType;
                     }
@@ -33005,7 +33220,7 @@ var ts;
                     var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                     if (predicateArgument) {
                         if (isMatchingReference(reference, predicateArgument)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, predicateArgument)) {
                             return declaredType;
@@ -33018,7 +33233,7 @@ var ts;
                         var accessExpression = invokedExpression;
                         var possibleReference = ts.skipParentheses(accessExpression.expression);
                         if (isMatchingReference(reference, possibleReference)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, possibleReference)) {
                             return declaredType;
@@ -33060,7 +33275,7 @@ var ts;
                     location = location.parent;
                 }
                 if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
-                    var type = checkExpression(location);
+                    var type = getTypeOfExpression(location);
                     if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                         return type;
                     }
@@ -33473,9 +33688,9 @@ var ts;
             return anyType;
         }
         function getTypeForThisExpressionFromJSDoc(node) {
-            var typeTag = ts.getJSDocTypeTag(node);
-            if (typeTag && typeTag.typeExpression && typeTag.typeExpression.type && typeTag.typeExpression.type.kind === 274 /* JSDocFunctionType */) {
-                var jsDocFunctionType = typeTag.typeExpression.type;
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 274 /* JSDocFunctionType */) {
+                var jsDocFunctionType = jsdocType;
                 if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277 /* JSDocThisType */) {
                     return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
                 }
@@ -33745,11 +33960,11 @@ var ts;
                 }
                 if (ts.isBindingPattern(declaration.parent)) {
                     var parentDeclaration = declaration.parent.parent;
-                    var name_20 = declaration.propertyName || declaration.name;
+                    var name_19 = declaration.propertyName || declaration.name;
                     if (ts.isVariableLike(parentDeclaration) &&
                         parentDeclaration.type &&
-                        !ts.isBindingPattern(name_20)) {
-                        var text = ts.getTextOfPropertyName(name_20);
+                        !ts.isBindingPattern(name_19)) {
+                        var text = ts.getTextOfPropertyName(name_19);
                         if (text) {
                             return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                         }
@@ -33835,7 +34050,7 @@ var ts;
                 }
                 // In an assignment expression, the right operand is contextually typed by the type of the left operand.
                 if (node === binaryExpression.right) {
-                    return checkExpression(binaryExpression.left);
+                    return getTypeOfExpression(binaryExpression.left);
                 }
             }
             else if (operator === 53 /* BarBarToken */) {
@@ -33843,7 +34058,7 @@ var ts;
                 // expression has no contextual type, the right operand is contextually typed by the type of the left operand.
                 var type = getContextualType(binaryExpression);
                 if (!type && node === binaryExpression.right) {
-                    type = checkExpression(binaryExpression.left);
+                    type = getTypeOfExpression(binaryExpression.left);
                 }
                 return type;
             }
@@ -34261,7 +34476,7 @@ var ts;
                 links.resolvedType = checkExpression(node.expression);
                 // This will allow types number, string, symbol or any. It will also allow enums, the unknown
                 // type, and any union of these types (like string | number).
-                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 /* NumberLike */ | 34 /* StringLike */ | 512 /* ESSymbol */)) {
+                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 /* NumberLike */ | 262178 /* StringLike */ | 512 /* ESSymbol */)) {
                     error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
                 }
                 else {
@@ -34270,10 +34485,10 @@ var ts;
             }
             return links.resolvedType;
         }
-        function getObjectLiteralIndexInfo(node, properties, kind) {
+        function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
             var propTypes = [];
             for (var i = 0; i < properties.length; i++) {
-                if (kind === 0 /* String */ || isNumericName(node.properties[i].name)) {
+                if (kind === 0 /* String */ || isNumericName(propertyNodes[i + offset].name)) {
                     propTypes.push(getTypeOfSymbol(properties[i]));
                 }
             }
@@ -34295,8 +34510,9 @@ var ts;
             var patternWithComputedProperties = false;
             var hasComputedStringProperty = false;
             var hasComputedNumberProperty = false;
-            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
-                var memberDecl = _a[_i];
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
                 var member = memberDecl.symbol;
                 if (memberDecl.kind === 257 /* PropertyAssignment */ ||
                     memberDecl.kind === 258 /* ShorthandPropertyAssignment */ ||
@@ -34361,6 +34577,7 @@ var ts;
                         return unknownType;
                     }
                     spread = getSpreadType(spread, type, /*isFromObjectLiteral*/ false);
+                    offset = i + 1;
                     continue;
                 }
                 else {
@@ -34388,8 +34605,8 @@ var ts;
             // If object literal is contextually typed by the implied type of a binding pattern, augment the result
             // type with those properties for which the binding pattern specifies a default value.
             if (contextualTypeHasPattern) {
-                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
-                    var prop = _c[_b];
+                for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
                     if (!propertiesTable[prop.name]) {
                         if (!(prop.flags & 536870912 /* Optional */)) {
                             error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
@@ -34409,8 +34626,8 @@ var ts;
             }
             return createObjectLiteralType();
             function createObjectLiteralType() {
-                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 0 /* String */) : undefined;
-                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 1 /* Number */) : undefined;
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0 /* String */) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1 /* Number */) : undefined;
                 var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
                 var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576 /* FreshLiteral */;
                 result.flags |= 4194304 /* ContainsObjectLiteral */ | freshObjectLiteralFlag | (typeFlags & 14680064 /* PropagatingFlags */);
@@ -35085,7 +35302,7 @@ var ts;
                         if (node.kind === 212 /* ForInStatement */ &&
                             child === node.statement &&
                             getForInVariableSymbol(node) === symbol &&
-                            hasNumericPropertyNames(checkExpression(node.expression))) {
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                             return true;
                         }
                         child = node;
@@ -35191,13 +35408,13 @@ var ts;
             for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
                 var signature = signatures_2[_i];
                 var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
-                var parent_9 = signature.declaration && signature.declaration.parent;
+                var parent_8 = signature.declaration && signature.declaration.parent;
                 if (!lastSymbol || symbol === lastSymbol) {
-                    if (lastParent && parent_9 === lastParent) {
+                    if (lastParent && parent_8 === lastParent) {
                         index++;
                     }
                     else {
-                        lastParent = parent_9;
+                        lastParent = parent_8;
                         index = cutoffIndex;
                     }
                 }
@@ -35205,7 +35422,7 @@ var ts;
                     // current declaration belongs to a different symbol
                     // set cutoffIndex so re-orderings in the future won't change result set from 0 to cutoffIndex
                     index = cutoffIndex = result.length;
-                    lastParent = parent_9;
+                    lastParent = parent_8;
                 }
                 lastSymbol = symbol;
                 // specialized signatures always need to be placed before non-specialized signatures regardless
@@ -36537,7 +36754,7 @@ var ts;
             if (!node.possiblyExhaustive) {
                 return false;
             }
-            var type = checkExpression(node.expression);
+            var type = getTypeOfExpression(node.expression);
             if (!isLiteralType(type)) {
                 return false;
             }
@@ -36944,10 +37161,10 @@ var ts;
             // The in operator requires the left operand to be of type Any, the String primitive type, or the Number primitive type,
             // and the right operand to be of type Any, an object type, or a type parameter type.
             // The result is always of the Boolean primitive type.
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 /* NumberLike */ | 512 /* ESSymbol */))) {
                 error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */ | 524288 /* IndexedAccess */)) {
                 error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             return booleanType;
@@ -36956,20 +37173,21 @@ var ts;
             var properties = node.properties;
             for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                 var p = properties_5[_i];
-                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p);
+                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
             }
             return sourceType;
         }
-        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property) {
+        /** Note: If property cannot be a SpreadAssignment, then allProperties does not need to be provided */
+        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
             if (property.kind === 257 /* PropertyAssignment */ || property.kind === 258 /* ShorthandPropertyAssignment */) {
-                var name_21 = property.name;
-                if (name_21.kind === 142 /* ComputedPropertyName */) {
-                    checkComputedPropertyName(name_21);
+                var name_20 = property.name;
+                if (name_20.kind === 142 /* ComputedPropertyName */) {
+                    checkComputedPropertyName(name_20);
                 }
-                if (isComputedNonLiteralName(name_21)) {
+                if (isComputedNonLiteralName(name_20)) {
                     return undefined;
                 }
-                var text = ts.getTextOfPropertyName(name_21);
+                var text = ts.getTextOfPropertyName(name_20);
                 var type = isTypeAny(objectLiteralType)
                     ? objectLiteralType
                     : getTypeOfPropertyOfType(objectLiteralType, text) ||
@@ -36985,13 +37203,18 @@ var ts;
                     }
                 }
                 else {
-                    error(name_21, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_21));
+                    error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_20));
                 }
             }
             else if (property.kind === 259 /* SpreadAssignment */) {
-                if (property.expression.kind !== 70 /* Identifier */) {
-                    error(property.expression, ts.Diagnostics.An_object_rest_element_must_be_an_identifier);
+                var nonRestNames = [];
+                if (allProperties) {
+                    for (var i = 0; i < allProperties.length - 1; i++) {
+                        nonRestNames.push(allProperties[i].name);
+                    }
                 }
+                var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                return checkDestructuringAssignment(property.expression, type);
             }
             else {
                 error(property, ts.Diagnostics.Property_assignment_expected);
@@ -37083,7 +37306,10 @@ var ts;
         }
         function checkReferenceAssignment(target, sourceType, contextualMapper) {
             var targetType = checkExpression(target, contextualMapper);
-            if (checkReferenceExpression(target, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
+            var error = target.parent.kind === 259 /* SpreadAssignment */ ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            if (checkReferenceExpression(target, error)) {
                 checkTypeAssignableTo(sourceType, targetType, target, /*headMessage*/ undefined);
             }
             return sourceType;
@@ -37246,7 +37472,7 @@ var ts;
                         resultType = numberType;
                     }
                     else {
-                        if (isTypeOfKind(leftType, 34 /* StringLike */) || isTypeOfKind(rightType, 34 /* StringLike */)) {
+                        if (isTypeOfKind(leftType, 262178 /* StringLike */) || isTypeOfKind(rightType, 262178 /* StringLike */)) {
                             // If one or both operands are of the String primitive type, the result is of the String primitive type.
                             resultType = stringType;
                         }
@@ -37273,6 +37499,8 @@ var ts;
                 case 29 /* LessThanEqualsToken */:
                 case 30 /* GreaterThanEqualsToken */:
                     if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(leftType);
+                        rightType = getBaseTypeOfLiteralType(rightType);
                         if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                             reportOperatorError();
                         }
@@ -37469,7 +37697,7 @@ var ts;
         function checkDeclarationInitializer(declaration) {
             var type = checkExpressionCached(declaration.initializer);
             return ts.getCombinedNodeFlags(declaration) & 2 /* Const */ ||
-                ts.getCombinedModifierFlags(declaration) & 64 /* Readonly */ ||
+                ts.getCombinedModifierFlags(declaration) & 64 /* Readonly */ && !ts.isParameterPropertyDeclaration(declaration) ||
                 isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
         }
         function isLiteralContextualType(contextualType) {
@@ -37484,7 +37712,7 @@ var ts;
                     }
                     contextualType = apparentType;
                 }
-                return maybeTypeOfKind(contextualType, 480 /* Literal */);
+                return maybeTypeOfKind(contextualType, (480 /* Literal */ | 262144 /* Index */));
             }
             return false;
         }
@@ -37528,6 +37756,23 @@ var ts;
             }
             return type;
         }
+        // Returns the type of an expression. Unlike checkExpression, this function is simply concerned
+        // with computing the type and may not fully check all contained sub-expressions for errors.
+        function getTypeOfExpression(node) {
+            // Optimize for the common case of a call to a function with a single non-generic call
+            // signature where we can just fetch the return type without checking the arguments.
+            if (node.kind === 179 /* CallExpression */ && node.expression.kind !== 96 /* SuperKeyword */) {
+                var funcType = checkNonNullExpression(node.expression);
+                var signature = getSingleCallSignature(funcType);
+                if (signature && !signature.typeParameters) {
+                    return getReturnTypeOfSignature(signature);
+                }
+            }
+            // Otherwise simply call checkExpression. Ideally, the entire family of checkXXX functions
+            // should have a parameter that indicates whether full error checking is required such that
+            // we can perform the optimizations locally.
+            return checkExpression(node);
+        }
         // Checks an expression and returns its type. The contextualMapper parameter serves two purposes: When
         // contextualMapper is not undefined and not equal to the identityMapper function object it indicates that the
         // expression is being inferentially typed (section 4.15.2 in spec) and provides the type mapper to use in
@@ -37730,9 +37975,9 @@ var ts;
                 else if (parameterName) {
                     var hasReportedError = false;
                     for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
-                        var name_22 = _a[_i].name;
-                        if (ts.isBindingPattern(name_22) &&
-                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, parameterName, typePredicate.parameterName)) {
+                        var name_21 = _a[_i].name;
+                        if (ts.isBindingPattern(name_21) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_21, parameterName, typePredicate.parameterName)) {
                             hasReportedError = true;
                             break;
                         }
@@ -37752,9 +37997,9 @@ var ts;
                 case 158 /* FunctionType */:
                 case 149 /* MethodDeclaration */:
                 case 148 /* MethodSignature */:
-                    var parent_10 = node.parent;
-                    if (node === parent_10.type) {
-                        return parent_10;
+                    var parent_9 = node.parent;
+                    if (node === parent_9.type) {
+                        return parent_9;
                     }
             }
         }
@@ -37764,15 +38009,15 @@ var ts;
                 if (ts.isOmittedExpression(element)) {
                     continue;
                 }
-                var name_23 = element.name;
-                if (name_23.kind === 70 /* Identifier */ &&
-                    name_23.text === predicateVariableName) {
+                var name_22 = element.name;
+                if (name_22.kind === 70 /* Identifier */ &&
+                    name_22.text === predicateVariableName) {
                     error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                     return true;
                 }
-                else if (name_23.kind === 173 /* ArrayBindingPattern */ ||
-                    name_23.kind === 172 /* ObjectBindingPattern */) {
-                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_23, predicateVariableNode, predicateVariableName)) {
+                else if (name_22.kind === 173 /* ArrayBindingPattern */ ||
+                    name_22.kind === 172 /* ObjectBindingPattern */) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, predicateVariableNode, predicateVariableName)) {
                         return true;
                     }
                 }
@@ -38040,8 +38285,8 @@ var ts;
                     if (superCallShouldBeFirst) {
                         var statements = node.body.statements;
                         var superCallStatement = void 0;
-                        for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
-                            var statement = statements_2[_i];
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
                             if (statement.kind === 207 /* ExpressionStatement */ && ts.isSuperCall(statement.expression)) {
                                 superCallStatement = statement;
                                 break;
@@ -38194,7 +38439,7 @@ var ts;
             var type = getTypeFromMappedTypeNode(node);
             var constraintType = getConstraintTypeFromMappedType(type);
             var keyType = constraintType.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(constraintType) : constraintType;
-            checkTypeAssignableTo(keyType, stringOrNumberType, node.typeParameter.constraint);
+            checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
         }
         function isPrivateWithinAmbient(node) {
             return (ts.getModifierFlags(node) & 8 /* Private */) && ts.isInAmbientContext(node);
@@ -38475,10 +38720,10 @@ var ts;
                     case 229 /* EnumDeclaration */:
                         return 2097152 /* ExportType */ | 1048576 /* ExportValue */;
                     case 234 /* ImportEqualsDeclaration */:
-                        var result_2 = 0;
+                        var result_3 = 0;
                         var target = resolveAlias(getSymbolOfNode(d));
-                        ts.forEach(target.declarations, function (d) { result_2 |= getDeclarationSpaces(d); });
-                        return result_2;
+                        ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
+                        return result_3;
                     default:
                         return 1048576 /* ExportValue */;
                 }
@@ -39211,8 +39456,8 @@ var ts;
                         // otherwise if variable has an initializer - show error that initialization will fail
                         // since LHS will be block scoped name instead of function scoped
                         if (!namesShareScope) {
-                            var name_24 = symbolToString(localDeclarationSymbol);
-                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_24, name_24);
+                            var name_23 = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_23, name_23);
                         }
                     }
                 }
@@ -39303,13 +39548,13 @@ var ts;
                     checkComputedPropertyName(node.propertyName);
                 }
                 // check private/protected variable access
-                var parent_11 = node.parent.parent;
-                var parentType = getTypeForBindingElementParent(parent_11);
-                var name_25 = node.propertyName || node.name;
-                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_25));
+                var parent_10 = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent_10);
+                var name_24 = node.propertyName || node.name;
+                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_24));
                 markPropertyAsReferenced(property);
-                if (parent_11.initializer && property && getParentOfSymbol(property)) {
-                    checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
+                if (parent_10.initializer && property && getParentOfSymbol(property)) {
+                    checkClassPropertyAccess(parent_10, parent_10.initializer, parentType, property);
                 }
             }
             // For a binding pattern, check contained binding elements
@@ -39501,6 +39746,7 @@ var ts;
         function checkForInStatement(node) {
             // Grammar checking
             checkGrammarForInOrForOfStatement(node);
+            var rightType = checkNonNullExpression(node.expression);
             // TypeScript 1.0 spec  (April 2014): 5.4
             // In a 'for-in' statement of the form
             // for (let VarDecl in Expr) Statement
@@ -39523,7 +39769,7 @@ var ts;
                 if (varExpr.kind === 175 /* ArrayLiteralExpression */ || varExpr.kind === 176 /* ObjectLiteralExpression */) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
                 }
-                else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 /* StringLike */)) {
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
                 }
                 else {
@@ -39531,10 +39777,9 @@ var ts;
                     checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
                 }
             }
-            var rightType = checkNonNullExpression(node.expression);
             // unknownType is returned i.e. if node.expression is identifier whose name cannot be resolved
             // in this case error about missing name is already reported - do not report extra one
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */ | 524288 /* IndexedAccess */)) {
                 error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             checkSourceElement(node.statement);
@@ -39724,12 +39969,12 @@ var ts;
                 // After we remove all types that are StringLike, we will know if there was a string constituent
                 // based on whether the result of filter is a new array.
                 var arrayTypes = arrayOrStringType.types;
-                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 34 /* StringLike */); });
+                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178 /* StringLike */); });
                 if (filteredTypes !== arrayTypes) {
                     arrayType = getUnionType(filteredTypes, /*subtypeReduction*/ true);
                 }
             }
-            else if (arrayOrStringType.flags & 34 /* StringLike */) {
+            else if (arrayOrStringType.flags & 262178 /* StringLike */) {
                 arrayType = neverType;
             }
             var hasStringConstituent = arrayOrStringType !== arrayType;
@@ -39761,7 +40006,7 @@ var ts;
             var arrayElementType = getIndexTypeOfType(arrayType, 1 /* Number */) || unknownType;
             if (hasStringConstituent) {
                 // This is just an optimization for the case where arrayOrStringType is string | string[]
-                if (arrayElementType.flags & 34 /* StringLike */) {
+                if (arrayElementType.flags & 262178 /* StringLike */) {
                     return stringType;
                 }
                 return getUnionType([arrayElementType, stringType], /*subtypeReduction*/ true);
@@ -40532,7 +40777,7 @@ var ts;
                                         return undefined;
                                     }
                                 }
-                                enumType_1 = checkExpression(expression);
+                                enumType_1 = getTypeOfExpression(expression);
                                 // allow references to constant members of other enums
                                 if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384 /* Enum */))) {
                                     return undefined;
@@ -40753,9 +40998,9 @@ var ts;
                     break;
                 case 174 /* BindingElement */:
                 case 223 /* VariableDeclaration */:
-                    var name_26 = node.name;
-                    if (ts.isBindingPattern(name_26)) {
-                        for (var _b = 0, _c = name_26.elements; _b < _c.length; _b++) {
+                    var name_25 = node.name;
+                    if (ts.isBindingPattern(name_25)) {
+                        for (var _b = 0, _c = name_25.elements; _b < _c.length; _b++) {
                             var el = _c[_b];
                             // mark individual names in binding pattern
                             checkModuleAugmentationElement(el, isGlobalAugmentation);
@@ -41587,7 +41832,7 @@ var ts;
                     }
                 // fallthrough
                 case 96 /* SuperKeyword */:
-                    var type = ts.isPartOfExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+                    var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                     return type.symbol;
                 case 167 /* ThisType */:
                     return getTypeFromTypeNode(node).symbol;
@@ -41613,7 +41858,7 @@ var ts;
                 case 8 /* NumericLiteral */:
                     // index access
                     if (node.parent.kind === 178 /* ElementAccessExpression */ && node.parent.argumentExpression === node) {
-                        var objectType = checkExpression(node.parent.expression);
+                        var objectType = getTypeOfExpression(node.parent.expression);
                         if (objectType === unknownType)
                             return undefined;
                         var apparentType = getApparentType(objectType);
@@ -41649,7 +41894,7 @@ var ts;
                 return getTypeFromTypeNode(node);
             }
             if (ts.isPartOfExpression(node)) {
-                return getTypeOfExpression(node);
+                return getRegularTypeOfExpression(node);
             }
             if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
                 // A SyntaxKind.ExpressionWithTypeArguments is considered a type node, except when it occurs in the
@@ -41702,7 +41947,7 @@ var ts;
             // If this is from "for" initializer
             //     for ({a } = elems[0];.....) { }
             if (expr.parent.kind === 192 /* BinaryExpression */) {
-                var iteratedType = checkExpression(expr.parent.right);
+                var iteratedType = getTypeOfExpression(expr.parent.right);
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             // If this is from nested object binding pattern
@@ -41729,11 +41974,11 @@ var ts;
             var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
             return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
         }
-        function getTypeOfExpression(expr) {
+        function getRegularTypeOfExpression(expr) {
             if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
                 expr = expr.parent;
             }
-            return getRegularTypeOfLiteralType(checkExpression(expr));
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
         }
         /**
           * Gets either the static or instance type of a class element, based on
@@ -41762,9 +42007,9 @@ var ts;
         function getRootSymbols(symbol) {
             if (symbol.flags & 268435456 /* SyntheticProperty */) {
                 var symbols_3 = [];
-                var name_27 = symbol.name;
+                var name_26 = symbol.name;
                 ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
-                    var symbol = getPropertyOfType(t, name_27);
+                    var symbol = getPropertyOfType(t, name_26);
                     if (symbol) {
                         symbols_3.push(symbol);
                     }
@@ -41823,7 +42068,7 @@ var ts;
         }
         function isNameOfModuleOrEnumDeclaration(node) {
             var parent = node.parent;
-            return ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
+            return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
         }
         // When resolved as an expression identifier, if the given node references an exported entity, return the declaration
         // node of the exported entity's container. Otherwise, return undefined.
@@ -42084,7 +42329,7 @@ var ts;
             else if (isTypeOfKind(type, 340 /* NumberLike */)) {
                 return ts.TypeReferenceSerializationKind.NumberLikeType;
             }
-            else if (isTypeOfKind(type, 34 /* StringLike */)) {
+            else if (isTypeOfKind(type, 262178 /* StringLike */)) {
                 return ts.TypeReferenceSerializationKind.StringLikeType;
             }
             else if (isTupleType(type)) {
@@ -42116,7 +42361,7 @@ var ts;
             getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
         }
         function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
-            var type = getWidenedType(getTypeOfExpression(expr));
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
         }
         function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
@@ -42137,9 +42382,9 @@ var ts;
             if (startInDeclarationContainer) {
                 // When resolving the name of a declaration as a value, we need to start resolution
                 // at a point outside of the declaration.
-                var parent_12 = reference.parent;
-                if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
-                    location = getDeclarationContainer(parent_12);
+                var parent_11 = reference.parent;
+                if (ts.isDeclaration(parent_11) && reference === parent_11.name) {
+                    location = getDeclarationContainer(parent_11);
                 }
             }
             return resolveName(location, reference.text, 107455 /* Value */ | 1048576 /* ExportValue */ | 8388608 /* Alias */, /*nodeNotFoundMessage*/ undefined, /*nameArg*/ undefined);
@@ -42268,9 +42513,9 @@ var ts;
                 // external modules cannot define or contribute to type declaration files
                 var current = symbol;
                 while (true) {
-                    var parent_13 = getParentOfSymbol(current);
-                    if (parent_13) {
-                        current = parent_13;
+                    var parent_12 = getParentOfSymbol(current);
+                    if (parent_12) {
+                        current = parent_12;
                     }
                     else {
                         break;
@@ -42973,10 +43218,10 @@ var ts;
                 if (prop.kind === 259 /* SpreadAssignment */) {
                     continue;
                 }
-                var name_28 = prop.name;
-                if (name_28.kind === 142 /* ComputedPropertyName */) {
+                var name_27 = prop.name;
+                if (name_27.kind === 142 /* ComputedPropertyName */) {
                     // If the name is not a ComputedPropertyName, the grammar checking will skip it
-                    checkGrammarComputedPropertyName(name_28);
+                    checkGrammarComputedPropertyName(name_27);
                 }
                 if (prop.kind === 258 /* ShorthandPropertyAssignment */ && !inDestructuring && prop.objectAssignmentInitializer) {
                     // having objectAssignmentInitializer is only valid in ObjectAssignmentPattern
@@ -43004,8 +43249,8 @@ var ts;
                 if (prop.kind === 257 /* PropertyAssignment */ || prop.kind === 258 /* ShorthandPropertyAssignment */) {
                     // Grammar checking for computedPropertyName and shorthandPropertyAssignment
                     checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
-                    if (name_28.kind === 8 /* NumericLiteral */) {
-                        checkGrammarNumericLiteral(name_28);
+                    if (name_27.kind === 8 /* NumericLiteral */) {
+                        checkGrammarNumericLiteral(name_27);
                     }
                     currentKind = Property;
                 }
@@ -43021,7 +43266,7 @@ var ts;
                 else {
                     ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
                 }
-                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_28);
+                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_27);
                 if (effectiveName === undefined) {
                     continue;
                 }
@@ -43031,18 +43276,18 @@ var ts;
                 else {
                     var existingKind = seen[effectiveName];
                     if (currentKind === Property && existingKind === Property) {
-                        grammarErrorOnNode(name_28, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_28));
+                        grammarErrorOnNode(name_27, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_27));
                     }
                     else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                         if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                             seen[effectiveName] = currentKind | existingKind;
                         }
                         else {
-                            return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                         }
                     }
                     else {
-                        return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                     }
                 }
             }
@@ -43055,12 +43300,12 @@ var ts;
                     continue;
                 }
                 var jsxAttr = attr;
-                var name_29 = jsxAttr.name;
-                if (!seen[name_29.text]) {
-                    seen[name_29.text] = true;
+                var name_28 = jsxAttr.name;
+                if (!seen[name_28.text]) {
+                    seen[name_28.text] = true;
                 }
                 else {
-                    return grammarErrorOnNode(name_29, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                    return grammarErrorOnNode(name_28, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
                 }
                 var initializer = jsxAttr.initializer;
                 if (initializer && initializer.kind === 252 /* JsxExpression */ && !initializer.expression) {
@@ -43577,19 +43822,24 @@ var ts;
     function reduceNode(node, f, initial) {
         return node ? f(initial, node) : initial;
     }
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
     /**
      * Similar to `reduceLeft`, performs a reduction against each child of a node.
      * NOTE: Unlike `forEachChild`, this does *not* visit every node. Only nodes added to the
      *       `nodeEdgeTraversalMap` above will be visited.
      *
      * @param node The node containing the children to reduce.
-     * @param f The callback function
      * @param initial The initial value to supply to the reduction.
+     * @param f The callback function
      */
-    function reduceEachChild(node, f, initial) {
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
         if (node === undefined) {
             return initial;
         }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
         var kind = node.kind;
         // No need to visit nodes with no children.
         if ((kind > 0 /* FirstToken */ && kind <= 140 /* LastToken */)) {
@@ -43606,114 +43856,114 @@ var ts;
             case 206 /* EmptyStatement */:
             case 198 /* OmittedExpression */:
             case 222 /* DebuggerStatement */:
-            case 292 /* NotEmittedStatement */:
+            case 293 /* NotEmittedStatement */:
                 // No need to visit nodes with no children.
                 break;
             // Names
             case 142 /* ComputedPropertyName */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Signature elements
             case 144 /* Parameter */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 145 /* Decorator */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Type member
             case 147 /* PropertyDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 149 /* MethodDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 150 /* Constructor */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 151 /* GetAccessor */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 152 /* SetAccessor */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             // Binding patterns
             case 172 /* ObjectBindingPattern */:
             case 173 /* ArrayBindingPattern */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 174 /* BindingElement */:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             // Expression
             case 175 /* ArrayLiteralExpression */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 176 /* ObjectLiteralExpression */:
-                result = ts.reduceLeft(node.properties, f, result);
+                result = reduceNodes(node.properties, cbNodes, result);
                 break;
             case 177 /* PropertyAccessExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 178 /* ElementAccessExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.argumentExpression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
                 break;
             case 179 /* CallExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 180 /* NewExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 181 /* TaggedTemplateExpression */:
-                result = reduceNode(node.tag, f, result);
-                result = reduceNode(node.template, f, result);
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNode(node.template, cbNode, result);
                 break;
             case 184 /* FunctionExpression */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 185 /* ArrowFunction */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 183 /* ParenthesizedExpression */:
             case 186 /* DeleteExpression */:
@@ -43723,212 +43973,212 @@ var ts;
             case 195 /* YieldExpression */:
             case 196 /* SpreadElement */:
             case 201 /* NonNullExpression */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 190 /* PrefixUnaryExpression */:
             case 191 /* PostfixUnaryExpression */:
-                result = reduceNode(node.operand, f, result);
+                result = reduceNode(node.operand, cbNode, result);
                 break;
             case 192 /* BinaryExpression */:
-                result = reduceNode(node.left, f, result);
-                result = reduceNode(node.right, f, result);
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
                 break;
             case 193 /* ConditionalExpression */:
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.whenTrue, f, result);
-                result = reduceNode(node.whenFalse, f, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
                 break;
             case 194 /* TemplateExpression */:
-                result = reduceNode(node.head, f, result);
-                result = ts.reduceLeft(node.templateSpans, f, result);
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
                 break;
             case 197 /* ClassExpression */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 199 /* ExpressionWithTypeArguments */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
                 break;
             // Misc
             case 202 /* TemplateSpan */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.literal, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
                 break;
             // Element
             case 204 /* Block */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 205 /* VariableStatement */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.declarationList, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
                 break;
             case 207 /* ExpressionStatement */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 208 /* IfStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.thenStatement, f, result);
-                result = reduceNode(node.elseStatement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
                 break;
             case 209 /* DoStatement */:
-                result = reduceNode(node.statement, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 210 /* WhileStatement */:
             case 217 /* WithStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 211 /* ForStatement */:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.incrementor, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 212 /* ForInStatement */:
             case 213 /* ForOfStatement */:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 216 /* ReturnStatement */:
             case 220 /* ThrowStatement */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 218 /* SwitchStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.caseBlock, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
                 break;
             case 219 /* LabeledStatement */:
-                result = reduceNode(node.label, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 221 /* TryStatement */:
-                result = reduceNode(node.tryBlock, f, result);
-                result = reduceNode(node.catchClause, f, result);
-                result = reduceNode(node.finallyBlock, f, result);
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
                 break;
             case 223 /* VariableDeclaration */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 224 /* VariableDeclarationList */:
-                result = ts.reduceLeft(node.declarations, f, result);
+                result = reduceNodes(node.declarations, cbNodes, result);
                 break;
             case 225 /* FunctionDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 226 /* ClassDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 232 /* CaseBlock */:
-                result = ts.reduceLeft(node.clauses, f, result);
+                result = reduceNodes(node.clauses, cbNodes, result);
                 break;
             case 235 /* ImportDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.importClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 236 /* ImportClause */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.namedBindings, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
                 break;
             case 237 /* NamespaceImport */:
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 238 /* NamedImports */:
             case 242 /* NamedExports */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 239 /* ImportSpecifier */:
             case 243 /* ExportSpecifier */:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 240 /* ExportAssignment */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 241 /* ExportDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.exportClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             // JSX
             case 246 /* JsxElement */:
-                result = reduceNode(node.openingElement, f, result);
-                result = ts.reduceLeft(node.children, f, result);
-                result = reduceNode(node.closingElement, f, result);
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
                 break;
             case 247 /* JsxSelfClosingElement */:
             case 248 /* JsxOpeningElement */:
-                result = reduceNode(node.tagName, f, result);
-                result = ts.reduceLeft(node.attributes, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.attributes, cbNodes, result);
                 break;
             case 249 /* JsxClosingElement */:
-                result = reduceNode(node.tagName, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
                 break;
             case 250 /* JsxAttribute */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 251 /* JsxSpreadAttribute */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 252 /* JsxExpression */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Clauses
             case 253 /* CaseClause */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
             // fall-through
             case 254 /* DefaultClause */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 255 /* HeritageClause */:
-                result = ts.reduceLeft(node.types, f, result);
+                result = reduceNodes(node.types, cbNodes, result);
                 break;
             case 256 /* CatchClause */:
-                result = reduceNode(node.variableDeclaration, f, result);
-                result = reduceNode(node.block, f, result);
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
                 break;
             // Property assignments
             case 257 /* PropertyAssignment */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 258 /* ShorthandPropertyAssignment */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.objectAssignmentInitializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
                 break;
             case 259 /* SpreadAssignment */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Top-level nodes
             case 261 /* SourceFile */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
-            case 293 /* PartiallyEmittedExpression */:
-                result = reduceNode(node.expression, f, result);
+            case 294 /* PartiallyEmittedExpression */:
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             default:
                 var edgeTraversalPath = nodeEdgeTraversalMap[kind];
@@ -43938,8 +44188,8 @@ var ts;
                         var value = node[edge.name];
                         if (value !== undefined) {
                             result = ts.isArray(value)
-                                ? ts.reduceLeft(value, f, result)
-                                : f(result, value);
+                                ? reduceNodes(value, cbNodes, result)
+                                : cbNode(result, value);
                         }
                     }
                 }
@@ -43949,8 +44199,8 @@ var ts;
     }
     ts.reduceEachChild = reduceEachChild;
     function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
-        if (node === undefined) {
-            return undefined;
+        if (node === undefined || visitor === undefined) {
+            return node;
         }
         aggregateTransformFlags(node);
         var visited = visitor(node);
@@ -44034,6 +44284,43 @@ var ts;
         return updated || nodes;
     }
     ts.visitNodes = visitNodes;
+    /**
+     * Starts a new lexical environment and visits a statement list, ending the lexical environment
+     * and merging hoisted declarations upon completion.
+     */
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
+            statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
+        }
+        var declarations = context.endLexicalEnvironment();
+        return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    /**
+     * Starts a new lexical environment and visits a parameter list, suspending the lexical
+     * environment upon completion.
+     */
+    function visitParameterList(nodes, visitor, context) {
+        context.startLexicalEnvironment();
+        var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
     function visitEachChild(node, visitor, context) {
         if (node === undefined) {
             return undefined;
@@ -44059,25 +44346,25 @@ var ts;
                 return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
             // Signature elements
             case 144 /* Parameter */:
-                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
+                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             // Type member
             case 147 /* PropertyDeclaration */:
                 return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             case 149 /* MethodDeclaration */:
-                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 150 /* Constructor */:
-                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 151 /* GetAccessor */:
-                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 152 /* SetAccessor */:
-                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             // Binding patterns
             case 172 /* ObjectBindingPattern */:
                 return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
             case 173 /* ArrayBindingPattern */:
                 return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
             case 174 /* BindingElement */:
-                return ts.updateBindingElement(node, visitNode(node.propertyName, visitor, ts.isPropertyName, /*optional*/ true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
+                return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, /*optional*/ true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             // Expression
             case 175 /* ArrayLiteralExpression */:
                 return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
@@ -44096,9 +44383,9 @@ var ts;
             case 183 /* ParenthesizedExpression */:
                 return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
             case 184 /* FunctionExpression */:
-                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 185 /* ArrowFunction */:
-                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isConciseBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 186 /* DeleteExpression */:
                 return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
             case 187 /* TypeOfExpression */:
@@ -44168,7 +44455,7 @@ var ts;
             case 224 /* VariableDeclarationList */:
                 return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
             case 225 /* FunctionDeclaration */:
-                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 226 /* ClassDeclaration */:
                 return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, /*optional*/ true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
             case 232 /* CaseBlock */:
@@ -44224,10 +44511,9 @@ var ts;
                 return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
             // Top-level nodes
             case 261 /* SourceFile */:
-                context.startLexicalEnvironment();
-                return ts.updateSourceFileNode(node, ts.createNodeArray(ts.concatenate(visitNodes(node.statements, visitor, ts.isStatement), context.endLexicalEnvironment()), node.statements));
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
             // Transformation nodes
-            case 293 /* PartiallyEmittedExpression */:
+            case 294 /* PartiallyEmittedExpression */:
                 return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
             default:
                 var updated = void 0;
@@ -44256,6 +44542,15 @@ var ts;
         // return node;
     }
     ts.visitEachChild = visitEachChild;
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        return ts.isNodeArray(statements)
+            ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
+            : ts.addRange(statements, declarations);
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
     function mergeFunctionBodyLexicalEnvironment(body, declarations) {
         if (body && declarations !== undefined && declarations.length > 0) {
             if (ts.isBlock(body)) {
@@ -44308,13 +44603,25 @@ var ts;
         if (node === undefined) {
             return 0 /* None */;
         }
-        else if (node.transformFlags & 536870912 /* HasComputedFlags */) {
+        if (node.transformFlags & 536870912 /* HasComputedFlags */) {
             return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
         }
-        else {
-            var subtreeFlags = aggregateTransformFlagsForSubtree(node);
-            return ts.computeTransformFlagsForNode(node, subtreeFlags);
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0 /* None */;
+        }
+        var subtreeFlags = 0 /* None */;
+        var nodeArrayFlags = 0 /* None */;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912 /* HasComputedFlags */;
         }
+        nodes.transformFlags = nodeArrayFlags | 536870912 /* HasComputedFlags */;
+        return subtreeFlags;
     }
     /**
      * Aggregates the transform flags for the subtree of a node.
@@ -44326,14 +44633,17 @@ var ts;
             return 0 /* None */;
         }
         // Aggregate the transform flags of each child.
-        return reduceEachChild(node, aggregateTransformFlagsForChildNode, 0 /* None */);
+        return reduceEachChild(node, 0 /* None */, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
     }
     /**
      * Aggregates the TransformFlags of a child node with the TransformFlags of its
      * siblings.
      */
-    function aggregateTransformFlagsForChildNode(transformFlags, child) {
-        return transformFlags | aggregateTransformFlagsForNode(child);
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
+    }
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
     }
     var Debug;
     (function (Debug) {
@@ -44343,9 +44653,21 @@ var ts;
         Debug.failBadSyntaxKind = Debug.shouldAssert(1 /* Normal */)
             ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
             : ts.noop;
+        Debug.assertEachNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
         Debug.assertNode = Debug.shouldAssert(1 /* Normal */)
             ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
             : ts.noop;
+        Debug.assertOptionalNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
+        Debug.assertOptionalToken = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
+            : ts.noop;
+        Debug.assertMissingNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
+            : ts.noop;
         function getFunctionName(func) {
             if (typeof func !== "function") {
                 return "";
@@ -44367,504 +44689,348 @@ var ts;
 /*@internal*/
 var ts;
 (function (ts) {
+    var FlattenLevel;
+    (function (FlattenLevel) {
+        FlattenLevel[FlattenLevel["All"] = 0] = "All";
+        FlattenLevel[FlattenLevel["ObjectRest"] = 1] = "ObjectRest";
+    })(FlattenLevel = ts.FlattenLevel || (ts.FlattenLevel = {}));
     /**
-     * Flattens a destructuring assignment expression.
+     * Flattens a DestructuringAssignment or a VariableDeclaration to an expression.
      *
-     * @param root The destructuring assignment expression.
-     * @param needsValue Indicates whether the value from the right-hand-side of the
-     *                   destructuring assignment is needed as part of a larger expression.
-     * @param recordTempVariable A callback used to record new temporary variables.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param node The node to flatten.
+     * @param visitor An optional visitor used to visit initializers.
+     * @param context The transformation context.
+     * @param level Indicates the extent to which flattening should occur.
+     * @param needsValue An optional value indicating whether the value from the right-hand-side of
+     * the destructuring assignment is needed as part of a larger expression.
+     * @param createAssignmentCallback An optional callback used to create the assignment expression.
      */
-    function flattenDestructuringAssignment(context, node, needsValue, recordTempVariable, visitor, transformRest) {
-        if (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
-            var right = node.right;
-            if (ts.isDestructuringAssignment(right)) {
-                return flattenDestructuringAssignment(context, right, needsValue, recordTempVariable, visitor);
-            }
-            else {
-                return node.right;
-            }
-        }
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
         var location = node;
-        var value = node.right;
-        var expressions = [];
-        if (needsValue) {
-            // If the right-hand value of the destructuring assignment needs to be preserved (as
-            // is the case when the destructuring assignmen) is part of a larger expression),
-            // then we need to cache the right-hand value.
-            //
-            // The source map location for the assignment should point to the entire binary
-            // expression.
-            value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment, visitor);
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return value;
+                }
+            }
         }
-        else if (ts.nodeIsSynthesized(node)) {
-            // Generally, the source map location for a destructuring assignment is the root
-            // expression.
-            //
-            // However, if the root expression is synthesized (as in the case
-            // of the initializer when transforming a ForOfStatement), then the source map
-            // location should point to the right-hand value of the expression.
-            location = value;
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (needsValue) {
+                // If the right-hand value of the destructuring assignment needs to be preserved (as
+                // is the case when the destructuring assignment is part of a larger expression),
+                // then we need to cache the right-hand value.
+                //
+                // The source map location for the assignment should point to the entire binary
+                // expression.
+                value = ensureIdentifier(flattenContext, value, /*reuseIdentifierExpressions*/ true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                // Generally, the source map location for a destructuring assignment is the root
+                // expression.
+                //
+                // However, if the root expression is synthesized (as in the case
+                // of the initializer when transforming a ForOfStatement), then the source map
+                // location should point to the right-hand value of the expression.
+                location = value;
+            }
         }
-        flattenDestructuring(node, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        if (needsValue) {
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, /*skipInitializer*/ ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
             expressions.push(value);
         }
-        var expression = ts.inlineExpressions(expressions);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location) {
-            var expression = ts.createAssignment(name, value, location);
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
             // NOTE: this completely disables source maps, but aligns with the behavior of
             //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(expression, 2048 /* NoNestedSourceMaps */);
+            ts.setEmitFlags(expression, 64 /* NoNestedSourceMaps */);
             ts.aggregateTransformFlags(expression);
-            expressions.push(expression);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitAssignment(name, value, location);
-            return name;
+            expressions = ts.append(expressions, expression);
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
+            expression.original = original;
+            emitExpression(expression);
         }
     }
     ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
     /**
-     * Flattens binding patterns in a parameter declaration.
+     * Flattens a VariableDeclaration or ParameterDeclaration to one or more variable declarations.
      *
-     * @param node The ParameterDeclaration to flatten.
-     * @param value The rhs value for the binding pattern.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param node The node to flatten.
+     * @param visitor An optional visitor used to visit initializers.
+     * @param context The transformation context.
+     * @param boundValue The value bound to the declaration.
+     * @param skipInitializer A value indicating whether to ignore the initializer of `node`.
+     * @param hoistTempVariables Indicates whether temporary variables should not be recorded in-line.
+     * @param level Indicates the extent to which flattening should occur.
      */
-    function flattenParameterDestructuring(node, value, visitor, transformRest) {
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        var pendingExpressions;
+        var pendingDeclarations = [];
         var declarations = [];
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location) {
-            var declaration = ts.createVariableDeclaration(name, /*type*/ undefined, value, location);
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(declaration, 2048 /* NoNestedSourceMaps */);
-            ts.aggregateTransformFlags(declaration);
-            declarations.push(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(/*recordTempVariable*/ undefined);
-            emitAssignment(name, value, location);
-            return name;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, /*location*/ undefined, /*original*/ undefined);
+            }
+            else {
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
+            }
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location);
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_29 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name_29, 
+            /*type*/ undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
+            variable.original = original;
+            if (ts.isIdentifier(name_29)) {
+                ts.setEmitFlags(variable, 64 /* NoNestedSourceMaps */);
+            }
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
         }
-    }
-    ts.flattenParameterDestructuring = flattenParameterDestructuring;
-    /**
-     * Flattens binding patterns in a variable declaration.
-     *
-     * @param node The VariableDeclaration to flatten.
-     * @param value An optional rhs value for the binding pattern.
-     * @param visitor An optional visitor to use to visit expressions.
-     */
-    function flattenVariableDestructuring(node, value, visitor, recordTempVariable, transformRest) {
-        var declarations = [];
-        var pendingAssignments;
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
         return declarations;
-        function emitAssignment(name, value, location, original) {
-            if (pendingAssignments) {
-                pendingAssignments.push(value);
-                value = ts.inlineExpressions(pendingAssignments);
-                pendingAssignments = undefined;
-            }
-            var declaration = ts.createVariableDeclaration(name, /*type*/ undefined, value, location);
-            declaration.original = original;
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(declaration, 2048 /* NoNestedSourceMaps */);
-            declarations.push(declaration);
-            ts.aggregateTransformFlags(declaration);
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
         }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            if (recordTempVariable) {
-                var assignment = ts.createAssignment(name, value, location);
-                if (pendingAssignments) {
-                    pendingAssignments.push(assignment);
-                }
-                else {
-                    pendingAssignments = [assignment];
-                }
-            }
-            else {
-                emitAssignment(name, value, location, /*original*/ undefined);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
             }
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location, original);
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
         }
     }
-    ts.flattenVariableDestructuring = flattenVariableDestructuring;
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
     /**
-     * Flattens binding patterns in a variable declaration and transforms them into an expression.
+     * Flattens a BindingOrAssignmentElement into zero or more bindings or assignments.
      *
-     * @param node The VariableDeclaration to flatten.
-     * @param recordTempVariable A callback used to record new temporary variables.
-     * @param createAssignmentCallback An optional callback used to create assignment expressions
-     * for non-temporary variables.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param flattenContext Options used to control flattening.
+     * @param element The element to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     * @param skipInitializer An optional value indicating whether to include the initializer
+     * for the element.
      */
-    function flattenVariableDestructuringToExpression(node, recordTempVariable, createAssignmentCallback, visitor) {
-        var pendingAssignments = [];
-        flattenDestructuring(node, /*value*/ undefined, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, /*transformRest*/ false, visitor);
-        var expression = ts.inlineExpressions(pendingAssignments);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location, original) {
-            var expression = createAssignmentCallback
-                ? createAssignmentCallback(name.kind === 70 /* Identifier */ ? name : emitTempVariableAssignment(name, location), value, location)
-                : ts.createAssignment(name, value, location);
-            emitPendingAssignment(expression, original);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitPendingAssignment(ts.createAssignment(name, value, location), /*original*/ undefined);
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location, original);
-        }
-        function emitPendingAssignment(expression, original) {
-            expression.original = original;
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(expression, 2048 /* NoNestedSourceMaps */);
-            pendingAssignments.push(expression);
-        }
-    }
-    ts.flattenVariableDestructuringToExpression = flattenVariableDestructuringToExpression;
-    function flattenDestructuring(root, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor) {
-        if (value && visitor) {
-            value = ts.visitNode(value, visitor, ts.isExpression);
-        }
-        if (ts.isBinaryExpression(root)) {
-            emitDestructuringAssignment(root.left, value, location);
-        }
-        else {
-            emitBindingElement(root, value);
-        }
-        function emitDestructuringAssignment(bindingTarget, value, location) {
-            // When emitting target = value use source map node to highlight, including any temporary assignments needed for this
-            var target;
-            if (ts.isShorthandPropertyAssignment(bindingTarget)) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.objectAssignmentInitializer, visitor, ts.isExpression)
-                    : bindingTarget.objectAssignmentInitializer;
-                if (initializer) {
-                    value = createDefaultValueCheck(value, initializer, location);
-                }
-                target = bindingTarget.name;
-            }
-            else if (ts.isBinaryExpression(bindingTarget) && bindingTarget.operatorToken.kind === 57 /* EqualsToken */) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.right, visitor, ts.isExpression)
-                    : bindingTarget.right;
-                value = createDefaultValueCheck(value, initializer, location);
-                target = bindingTarget.left;
-            }
-            else {
-                target = bindingTarget;
-            }
-            if (target.kind === 176 /* ObjectLiteralExpression */) {
-                emitObjectLiteralAssignment(target, value, location);
-            }
-            else if (target.kind === 175 /* ArrayLiteralExpression */) {
-                emitArrayLiteralAssignment(target, value, location);
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                // Combine value and initializer
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
             }
-            else {
-                var name_30 = ts.getMutableClone(target);
-                ts.setSourceMapRange(name_30, target);
-                ts.setCommentRange(name_30, target);
-                emitAssignment(name_30, value, location, /*original*/ undefined);
+            else if (!value) {
+                // Use 'void 0' in absence of value and initializer
+                value = ts.createVoidZero();
             }
         }
-        function emitObjectLiteralAssignment(target, value, location) {
-            var properties = target.properties;
-            if (properties.length !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to hightlight the passed in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            var bindingElements = [];
-            for (var i = 0; i < properties.length; i++) {
-                var p = properties[i];
-                if (p.kind === 257 /* PropertyAssignment */ || p.kind === 258 /* ShorthandPropertyAssignment */) {
-                    if (!transformRest ||
-                        p.transformFlags & 8388608 /* ContainsSpreadExpression */ ||
-                        (p.kind === 257 /* PropertyAssignment */ && p.initializer.transformFlags & 8388608 /* ContainsSpreadExpression */)) {
-                        if (bindingElements.length) {
-                            emitRestAssignment(bindingElements, value, location, target);
-                            bindingElements = [];
-                        }
-                        var propName = p.name;
-                        var bindingTarget = p.kind === 258 /* ShorthandPropertyAssignment */ ? p : p.initializer || propName;
-                        // Assignment for bindingTarget = value.propName should highlight whole property, hence use p as source map node
-                        emitDestructuringAssignment(bindingTarget, createDestructuringPropertyAccess(value, propName), p);
-                    }
-                    else {
-                        bindingElements.push(p);
-                    }
-                }
-                else if (i === properties.length - 1 &&
-                    p.kind === 259 /* SpreadAssignment */ &&
-                    p.expression.kind === 70 /* Identifier */) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, location, target);
-                        bindingElements = [];
-                    }
-                    var propName = p.expression;
-                    var restCall = createRestCall(value, target.properties, function (p) { return p.name; }, target);
-                    emitDestructuringAssignment(propName, restCall, p);
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, location, target);
-                bindingElements = [];
-            }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitArrayLiteralAssignment(target, value, location) {
-            if (transformRest) {
-                emitESNextArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                emitES2015ArrayLiteralAssignment(target, value, location);
-            }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitESNextArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to highlight the passed-in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            var expressions = [];
-            var spreadContainingExpressions = [];
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind === 198 /* OmittedExpression */) {
-                    continue;
-                }
-                if (e.transformFlags & 8388608 /* ContainsSpreadExpression */ && i < numElements - 1) {
-                    var tmp = ts.createTempVariable(recordTempVariable);
-                    spreadContainingExpressions.push([e, tmp]);
-                    expressions.push(tmp);
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, /*original*/ element);
+        }
+    }
+    /**
+     * Flattens an ObjectBindingOrAssignmentPattern into zero or more bindings or assignments.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param parent The parent element of the pattern.
+     * @param pattern The ObjectBindingOrAssignmentPattern to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     */
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            // For anything other than a single-element destructuring we need to generate a temporary
+            // to ensure value is evaluated exactly once. Additionally, if we have zero elements
+            // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
+            // so in that case, we'll intentionally create that temporary.
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1 /* ObjectRest */
+                    && !(element.transformFlags & (524288 /* ContainsRest */ | 1048576 /* ContainsObjectRest */))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 /* ContainsRest */ | 1048576 /* ContainsObjectRest */))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, element);
                 }
                 else {
-                    expressions.push(e);
-                }
-            }
-            emitAssignment(ts.updateArrayLiteral(target, expressions), value, undefined, undefined);
-            for (var _i = 0, spreadContainingExpressions_1 = spreadContainingExpressions; _i < spreadContainingExpressions_1.length; _i++) {
-                var _a = spreadContainingExpressions_1[_i], e = _a[0], tmp = _a[1];
-                emitDestructuringAssignment(e, tmp, e);
-            }
-        }
-        function emitES2015ArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to highlight the passed-in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind !== 198 /* OmittedExpression */) {
-                    // Assignment for target = value.propName should highligh whole property, hence use e as source map node
-                    if (e.kind !== 196 /* SpreadElement */) {
-                        emitDestructuringAssignment(e, ts.createElementAccess(value, ts.createLiteral(i)), e);
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
                     }
-                    else if (i === numElements - 1) {
-                        emitDestructuringAssignment(e.expression, ts.createArraySlice(value, i), e);
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                     }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
                 }
             }
-        }
-        /** Given value: o, propName: p, pattern: { a, b, ...p } from the original statement
-         * `{ a, b, ...p } = o`, create `p = __rest(o, ["a", "b"]);`*/
-        function createRestCall(value, elements, getPropertyName, location) {
-            var propertyNames = [];
-            for (var i = 0; i < elements.length - 1; i++) {
-                if (ts.isOmittedExpression(elements[i])) {
-                    continue;
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
                 }
-                var str = ts.createSynthesizedNode(9 /* StringLiteral */);
-                str.pos = location.pos;
-                str.end = location.end;
-                str.text = ts.getTextOfPropertyName(getPropertyName(elements[i]));
-                propertyNames.push(str);
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            var args = ts.createSynthesizedNodeArray([value, ts.createArrayLiteral(propertyNames, location)]);
-            return ts.createCall(ts.createIdentifier("__rest"), undefined, args);
         }
-        function emitBindingElement(target, value) {
-            // Any temporary assignments needed to emit target = value should point to target
-            var initializer = visitor ? ts.visitNode(target.initializer, visitor, ts.isExpression) : target.initializer;
-            if (transformRest) {
-                value = value || initializer;
-            }
-            else if (initializer) {
-                // Combine value and initializer
-                value = value ? createDefaultValueCheck(value, initializer, target) : initializer;
-            }
-            else if (!value) {
-                // Use 'void 0' in absence of value and initializer
-                value = ts.createVoidZero();
-            }
-            var name = target.name;
-            if (!ts.isBindingPattern(name)) {
-                emitAssignment(name, value, target, target);
-            }
-            else {
-                var numElements = name.elements.length;
-                if (numElements !== 1) {
-                    // For anything other than a single-element destructuring we need to generate a temporary
-                    // to ensure value is evaluated exactly once. Additionally, if we have zero elements
-                    // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
-                    // so in that case, we'll intentionally create that temporary.
-                    value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ numElements !== 0, target, emitTempVariableAssignment);
-                }
-                if (name.kind === 173 /* ArrayBindingPattern */) {
-                    emitArrayBindingElement(name, value);
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+        }
+    }
+    /**
+     * Flattens an ArrayBindingOrAssignmentPattern into zero or more bindings or assignments.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param parent The parent element of the pattern.
+     * @param pattern The ArrayBindingOrAssignmentPattern to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     */
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1 && (flattenContext.level < 1 /* ObjectRest */ || numElements === 0)) {
+            // For anything other than a single-element destructuring we need to generate a temporary
+            // to ensure value is evaluated exactly once. Additionally, if we have zero elements
+            // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
+            // so in that case, we'll intentionally create that temporary.
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1 /* ObjectRest */) {
+                // If an array pattern contains an ObjectRest, we must cache the result so that we
+                // can perform the ObjectRest destructuring in a different declaration
+                if (element.transformFlags & 1048576 /* ContainsObjectRest */) {
+                    var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
                 }
                 else {
-                    emitObjectBindingElement(target, value);
+                    bindingElements = ts.append(bindingElements, element);
                 }
             }
-        }
-        function emitArrayBindingElement(name, value) {
-            if (transformRest) {
-                emitESNextArrayBindingElement(name, value);
+            else if (ts.isOmittedExpression(element)) {
+                continue;
             }
-            else {
-                emitES2015ArrayBindingElement(name, value);
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
             }
-        }
-        function emitES2015ArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (!element.dotDotDotToken) {
-                    // Rewrite element to a declaration that accesses array element at index i
-                    emitBindingElement(element, ts.createElementAccess(value, i));
-                }
-                else if (i === numElements - 1) {
-                    emitBindingElement(element, ts.createArraySlice(value, i));
-                }
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
             }
         }
-        function emitESNextArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            var spreadContainingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (element.transformFlags & 8388608 /* ContainsSpreadExpression */ && i < numElements - 1) {
-                    spreadContainingElements.push(element);
-                    bindingElements.push(ts.createBindingElement(undefined, undefined, ts.getGeneratedNameForNode(element), undefined, value));
-                }
-                else {
-                    bindingElements.push(element);
-                }
-            }
-            emitAssignment(ts.updateArrayBindingPattern(name, bindingElements), value, undefined, undefined);
-            for (var _i = 0, spreadContainingElements_1 = spreadContainingElements; _i < spreadContainingElements_1.length; _i++) {
-                var element = spreadContainingElements_1[_i];
-                emitBindingElement(element, ts.getGeneratedNameForNode(element));
-            }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function emitObjectBindingElement(target, value) {
-            var name = target.name;
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (i === numElements - 1 && element.dotDotDotToken) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var restCall = createRestCall(value, name.elements, function (element) { return element.propertyName || element.name; }, name);
-                    emitBindingElement(element, restCall);
-                }
-                else if (transformRest && !(element.transformFlags & 8388608 /* ContainsSpreadExpression */)) {
-                    // do not emit until we have a complete bundle of ES2015 syntax
-                    bindingElements.push(element);
-                }
-                else {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    // Rewrite element to a declaration with an initializer that fetches property
-                    var propName = element.propertyName || element.name;
-                    emitBindingElement(element, createDestructuringPropertyAccess(value, propName));
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, target, target);
-                bindingElements = [];
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
             }
         }
-        function createDefaultValueCheck(value, defaultValue, location) {
-            value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            return ts.createConditional(ts.createStrictEquality(value, ts.createVoidZero()), ts.createToken(54 /* QuestionToken */), defaultValue, ts.createToken(55 /* ColonToken */), value);
+    }
+    /**
+     * Creates an expression used to provide a default value if a value is `undefined` at runtime.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param value The RHS value to test.
+     * @param defaultValue The default value to use if `value` is `undefined` at runtime.
+     * @param location The location to use for source maps and comments.
+     */
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, /*reuseIdentifierExpressions*/ true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    /**
+     * Creates either a PropertyAccessExpression or an ElementAccessExpression for the
+     * right-hand side of a transformed destructuring assignment.
+     *
+     * @link https://tc39.github.io/ecma262/#sec-runtime-semantics-keyeddestructuringassignmentevaluation
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param value The RHS value that is the source of the property.
+     * @param propertyName The destructuring property name.
+     */
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, /*reuseIdentifierExpressions*/ false, /*location*/ propertyName);
+            return ts.createElementAccess(value, argumentExpression);
         }
-        /**
-         * Creates either a PropertyAccessExpression or an ElementAccessExpression for the
-         * right-hand side of a transformed destructuring assignment.
-         *
-         * @param expression The right-hand expression that is the source of the property.
-         * @param propertyName The destructuring property name.
-         */
-        function createDestructuringPropertyAccess(expression, propertyName) {
-            if (ts.isComputedPropertyName(propertyName)) {
-                return ts.createElementAccess(expression, ensureIdentifier(propertyName.expression, /*reuseIdentifierExpressions*/ false, /*location*/ propertyName, emitTempVariableAssignment));
-            }
-            else if (ts.isLiteralExpression(propertyName)) {
-                var clone_2 = ts.getSynthesizedClone(propertyName);
-                clone_2.text = ts.unescapeIdentifier(clone_2.text);
-                return ts.createElementAccess(expression, clone_2);
-            }
-            else {
-                if (ts.isGeneratedIdentifier(propertyName)) {
-                    var clone_3 = ts.getSynthesizedClone(propertyName);
-                    clone_3.text = ts.unescapeIdentifier(clone_3.text);
-                    return ts.createPropertyAccess(expression, clone_3);
-                }
-                else {
-                    return ts.createPropertyAccess(expression, ts.createIdentifier(ts.unescapeIdentifier(propertyName.text)));
-                }
-            }
+        else if (ts.isStringOrNumericLiteral(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name_30 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
+            return ts.createPropertyAccess(value, name_30);
         }
     }
     /**
@@ -44872,23 +45038,74 @@ var ts;
      * This function is useful to ensure that the expression's value can be read from in subsequent expressions.
      * Unless 'reuseIdentifierExpressions' is false, 'value' will be returned if it is just an identifier.
      *
+     * @param flattenContext Options used to control flattening.
      * @param value the expression whose value needs to be bound.
      * @param reuseIdentifierExpressions true if identifier expressions can simply be returned;
-     *                                   false if it is necessary to always emit an identifier.
+     * false if it is necessary to always emit an identifier.
      * @param location The location to use for source maps and comments.
-     * @param emitTempVariableAssignment A callback used to emit a temporary variable.
-     * @param visitor An optional callback used to visit the value.
      */
-    function ensureIdentifier(value, reuseIdentifierExpressions, location, emitTempVariableAssignment, visitor) {
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
         if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
             return value;
         }
         else {
-            if (visitor) {
-                value = ts.visitNode(value, visitor, ts.isExpression);
+            var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.createAssignment(temp, value, location));
+            }
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, /*original*/ undefined);
+            }
+            return temp;
+        }
+    }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(/*propertyName*/ undefined, /*dotDotDotToken*/ undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    var restHelper = {
+        name: "typescript:rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
+    };
+    /** Given value: o, propName: p, pattern: { a, b, ...p } from the original statement
+     * `{ a, b, ...p } = o`, create `p = __rest(o, ["a", "b"]);`*/
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    // typeof _tmp === "symbol" ? _tmp : _tmp + ""
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
             }
-            return emitTempVariableAssignment(value, location);
         }
+        return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
     }
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
@@ -44911,7 +45128,7 @@ var ts;
         TypeScriptSubstitutionFlags[TypeScriptSubstitutionFlags["NonQualifiedEnumMembers"] = 8] = "NonQualifiedEnumMembers";
     })(TypeScriptSubstitutionFlags || (TypeScriptSubstitutionFlags = {}));
     function transformTypeScript(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
@@ -44931,7 +45148,6 @@ var ts;
         var currentNamespaceContainerName;
         var currentScope;
         var currentScopeFirstDeclarationsOfName;
-        var currentExternalHelpersModuleName;
         /**
          * Keeps track of whether expression substitution has been enabled for specific edge cases.
          * They are persisted between each SourceFile transformation and should not be reset.
@@ -44957,7 +45173,11 @@ var ts;
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         /**
          * Visits a node, saving and restoring state variables on the stack.
@@ -44979,6 +45199,29 @@ var ts;
             return visited;
         }
         /**
+         * Performs actions that should always occur immediately before visiting a node.
+         *
+         * @param node The node to visit.
+         */
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 261 /* SourceFile */:
+                case 232 /* CaseBlock */:
+                case 231 /* ModuleBlock */:
+                case 204 /* Block */:
+                    currentScope = node;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 226 /* ClassDeclaration */:
+                case 225 /* FunctionDeclaration */:
+                    if (ts.hasModifier(node, 2 /* Ambient */)) {
+                        break;
+                    }
+                    recordEmittedDeclarationInScope(node);
+                    break;
+            }
+        }
+        /**
          * General-purpose node visitor.
          *
          * @param node The node to visit.
@@ -44992,10 +45235,7 @@ var ts;
          * @param node The node to visit.
          */
         function visitorWorker(node) {
-            if (node.kind === 261 /* SourceFile */) {
-                return visitSourceFile(node);
-            }
-            else if (node.transformFlags & 1 /* TypeScript */) {
+            if (node.transformFlags & 1 /* TypeScript */) {
                 // This node is explicitly marked as TypeScript, so we should transform the node.
                 return visitTypeScript(node);
             }
@@ -45265,67 +45505,9 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        /**
-         * Performs actions that should always occur immediately before visiting a node.
-         *
-         * @param node The node to visit.
-         */
-        function onBeforeVisitNode(node) {
-            switch (node.kind) {
-                case 261 /* SourceFile */:
-                case 232 /* CaseBlock */:
-                case 231 /* ModuleBlock */:
-                case 204 /* Block */:
-                    currentScope = node;
-                    currentScopeFirstDeclarationsOfName = undefined;
-                    break;
-                case 226 /* ClassDeclaration */:
-                case 225 /* FunctionDeclaration */:
-                    if (ts.hasModifier(node, 2 /* Ambient */)) {
-                        break;
-                    }
-                    recordEmittedDeclarationInScope(node);
-                    break;
-            }
-        }
         function visitSourceFile(node) {
-            currentSourceFile = node;
-            // ensure "use strict" is emitted in all scenarios in alwaysStrict mode
-            // There is no need to emit "use strict" in the following cases:
-            //      1. The file is an external module and target is es2015 or higher
-            //      or 2. The file is an external module and module-kind is es6 or es2015 as such value is not allowed when targeting es5 or lower
-            if (compilerOptions.alwaysStrict &&
-                !(ts.isExternalModule(node) && (compilerOptions.target >= 2 /* ES2015 */ || compilerOptions.module === ts.ModuleKind.ES2015))) {
-                node = ts.ensureUseStrict(node);
-            }
-            // If the source file requires any helpers and is an external module, and
-            // the importHelpers compiler option is enabled, emit a synthesized import
-            // statement for the helpers library.
-            if (node.flags & 64512 /* EmitHelperFlags */
-                && compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                startLexicalEnvironment();
-                var statements = [];
-                var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ false, visitor);
-                var externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText);
-                var externalHelpersModuleImport = ts.createImportDeclaration(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, ts.createImportClause(/*name*/ undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText));
-                externalHelpersModuleImport.parent = node;
-                externalHelpersModuleImport.flags &= ~8 /* Synthesized */;
-                statements.push(externalHelpersModuleImport);
-                currentExternalHelpersModuleName = externalHelpersModuleName;
-                ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
-                ts.addRange(statements, endLexicalEnvironment());
-                currentExternalHelpersModuleName = undefined;
-                node = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
-                node.externalHelpersModuleName = externalHelpersModuleName;
-            }
-            else {
-                node = ts.visitEachChild(node, sourceElementVisitor, context);
-            }
-            ts.setEmitFlags(node, 1 /* EmitEmitHelpers */ | ts.getEmitFlags(node));
-            return node;
+            var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, /*start*/ 0, alwaysStrict));
         }
         /**
          * Tests whether we should emit a __decorate call for a class declaration.
@@ -45402,7 +45584,7 @@ var ts;
             if (statements.length > 1) {
                 // Add a DeclarationMarker as a marker for the end of the declaration
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152 /* HasEndOfDeclarationMarker */);
             }
             return ts.singleOrMany(statements);
         }
@@ -45425,7 +45607,7 @@ var ts;
             // To better align with the old emitter, we should not emit a trailing source map
             // entry if the class has static properties.
             if (hasStaticProperties) {
-                emitFlags |= 1024 /* NoTrailingSourceMap */;
+                emitFlags |= 32 /* NoTrailingSourceMap */;
             }
             ts.setOriginalNode(classDeclaration, node);
             ts.setEmitFlags(classDeclaration, emitFlags);
@@ -45570,7 +45752,7 @@ var ts;
                 }
                 // To preserve the behavior of the old emitter, we explicitly indent
                 // the body of a class with static initializers.
-                ts.setEmitFlags(classExpression, 524288 /* Indented */ | ts.getEmitFlags(classExpression));
+                ts.setEmitFlags(classExpression, 32768 /* Indented */ | ts.getEmitFlags(classExpression));
                 expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
                 ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
                 expressions.push(ts.startOnNewLine(temp));
@@ -45604,7 +45786,7 @@ var ts;
             // If there is a property assignment, we need to emit constructor whether users define it or not
             // If there is no property assignment, we can omit constructor if users do not define it
             var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
-            var hasParameterPropertyAssignments = node.transformFlags & 4194304 /* ContainsParameterPropertyAssignments */;
+            var hasParameterPropertyAssignments = node.transformFlags & 262144 /* ContainsParameterPropertyAssignments */;
             var constructor = ts.getFirstConstructorWithBody(node);
             // If the class does not contain nodes that require a synthesized constructor,
             // accept the current constructor if it exists.
@@ -45644,9 +45826,8 @@ var ts;
             // downlevel the '...args' portion less efficiently by naively copying the contents of 'arguments' to an array.
             // Instead, we'll avoid using a rest parameter and spread into the super call as
             // 'super(...arguments)' instead of 'super(...args)', as you can see in "transformConstructorBody".
-            return constructor
-                ? ts.visitNodes(constructor.parameters, visitor, ts.isParameter)
-                : [];
+            return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
+                || [];
         }
         /**
          * Transforms (or creates) a constructor body for a class with parameter property
@@ -45659,8 +45840,7 @@ var ts;
         function transformConstructorBody(node, constructor, hasExtendsClause) {
             var statements = [];
             var indexOfFirstStatement = 0;
-            // The body of a constructor is a new lexical environment
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             if (constructor) {
                 indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
                 // Add parameters with property assignments. Transforms this:
@@ -45704,9 +45884,10 @@ var ts;
             }
             // End the lexical environment.
             ts.addRange(statements, endLexicalEnvironment());
-            return ts.setMultiLine(ts.createBlock(ts.createNodeArray(statements, 
+            return ts.createBlock(ts.createNodeArray(statements, 
             /*location*/ constructor ? constructor.body.statements : node.members), 
-            /*location*/ constructor ? constructor.body : undefined), true);
+            /*location*/ constructor ? constructor.body : undefined, 
+            /*multiLine*/ true);
         }
         /**
          * Adds super call and preceding prologue directives into the list of statements.
@@ -45758,9 +45939,9 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name));
             var name = node.name;
             var propertyName = ts.getMutableClone(name);
-            ts.setEmitFlags(propertyName, 49152 /* NoComments */ | 1536 /* NoSourceMap */);
+            ts.setEmitFlags(propertyName, 1536 /* NoComments */ | 48 /* NoSourceMap */);
             var localName = ts.getMutableClone(name);
-            ts.setEmitFlags(localName, 49152 /* NoComments */);
+            ts.setEmitFlags(localName, 1536 /* NoComments */);
             return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, 
             /*location*/ node.name), localName), 
             /*location*/ ts.moveRangePos(node, -1)));
@@ -46072,13 +46253,13 @@ var ts;
             //       __metadata("design:type", Function),
             //       __metadata("design:paramtypes", [Object]),
             //       __metadata("design:returntype", void 0)
-            //   ], C.prototype, "method", undefined);
+            //   ], C.prototype, "method", null);
             //
             // The emit for an accessor is:
             //
             //   __decorate([
             //       dec
-            //   ], C.prototype, "accessor", undefined);
+            //   ], C.prototype, "accessor", null);
             //
             // The emit for a property is:
             //
@@ -46093,8 +46274,8 @@ var ts;
                     ? ts.createVoidZero()
                     : ts.createNull()
                 : undefined;
-            var helper = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
-            ts.setEmitFlags(helper, 49152 /* NoComments */);
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536 /* NoComments */);
             return helper;
         }
         /**
@@ -46121,9 +46302,9 @@ var ts;
             }
             var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
             var localName = ts.getLocalName(node, /*allowComments*/ false, /*allowSourceMaps*/ true);
-            var decorate = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, localName);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
             var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
-            ts.setEmitFlags(expression, 49152 /* NoComments */);
+            ts.setEmitFlags(expression, 1536 /* NoComments */);
             ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
             return expression;
         }
@@ -46147,9 +46328,9 @@ var ts;
                 expressions = [];
                 for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                     var decorator = decorators_1[_i];
-                    var helper = ts.createParamHelper(currentExternalHelpersModuleName, transformDecorator(decorator), parameterOffset, 
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, 
                     /*location*/ decorator.expression);
-                    ts.setEmitFlags(helper, 49152 /* NoComments */);
+                    ts.setEmitFlags(helper, 1536 /* NoComments */);
                     expressions.push(helper);
                 }
             }
@@ -46172,13 +46353,13 @@ var ts;
         function addOldTypeMetadata(node, decoratorExpressions) {
             if (compilerOptions.emitDecoratorMetadata) {
                 if (shouldAddTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:type", serializeTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
                 }
                 if (shouldAddParamTypesMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:paramtypes", serializeParameterTypesOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node)));
                 }
                 if (shouldAddReturnTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:returntype", serializeReturnTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
                 }
             }
         }
@@ -46195,7 +46376,7 @@ var ts;
                     (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(/*modifiers*/ undefined, /*typeParameters*/ undefined, [], /*type*/ undefined, ts.createToken(35 /* EqualsGreaterThanToken */), serializeReturnTypeOfNode(node))));
                 }
                 if (properties) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:typeinfo", ts.createObjectLiteral(properties, /*location*/ undefined, /*multiLine*/ true)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, /*location*/ undefined, /*multiLine*/ true)));
                 }
             }
         }
@@ -46435,7 +46616,7 @@ var ts;
                 case ts.TypeReferenceSerializationKind.Unknown:
                     var serialized = serializeEntityNameAsExpression(node.typeName, /*useFallback*/ true);
                     var temp = ts.createTempVariable(hoistVariableDeclaration);
-                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictEquality(ts.createTypeOf(ts.createAssignment(temp, serialized)), ts.createLiteral("function")), temp), ts.createIdentifier("Object"));
+                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
                 case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                     return serializeEntityNameAsExpression(node.typeName, /*useFallback*/ false);
                 case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
@@ -46511,7 +46692,7 @@ var ts;
          * available.
          */
         function getGlobalSymbolNameWithFallback() {
-            return ts.createConditional(ts.createStrictEquality(ts.createTypeOf(ts.createIdentifier("Symbol")), ts.createLiteral("function")), ts.createToken(54 /* QuestionToken */), ts.createIdentifier("Symbol"), ts.createToken(55 /* ColonToken */), ts.createIdentifier("Object"));
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
         }
         /**
          * Gets an expression that represents a property name. For a computed property, a
@@ -46613,17 +46794,17 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return undefined;
             }
-            var method = ts.createMethod(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            var updated = ts.updateMethod(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Determines whether to emit an accessor declaration. We should not emit the
@@ -46647,16 +46828,16 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createGetAccessor(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateGetAccessor(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Visits a set accessor declaration of a class.
@@ -46671,15 +46852,15 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createSetAccessor(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateSetAccessor(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Visits a function declaration.
@@ -46695,18 +46876,16 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return ts.createNotEmittedStatement(node);
             }
-            var func = ts.createFunctionDeclaration(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
+            var updated = ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
             if (isNamespaceExport(node)) {
-                var statements = [func];
+                var statements = [updated];
                 addExportMemberAssignment(statements, node);
                 return statements;
             }
-            return func;
+            return updated;
         }
         /**
          * Visits a function expression node.
@@ -46720,12 +46899,10 @@ var ts;
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         /**
          * @remarks
@@ -46733,51 +46910,10 @@ var ts;
          * - The node has type annotations
          */
         function visitArrowFunction(node) {
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, transformConciseBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformFunctionBodyWorker(node.body);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
-            currentScope = body;
-            currentScopeFirstDeclarationsOfName = ts.createMap();
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-        }
-        function transformConciseBody(node) {
-            return transformConciseBodyWorker(node.body, /*forceBlockFunctionBody*/ false);
-        }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
-            if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
-            }
-            else {
-                startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
-                var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
-            }
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         /**
          * Visits a parameter declaration node.
@@ -46804,7 +46940,7 @@ var ts;
             ts.setOriginalNode(parameter, node);
             ts.setCommentRange(parameter, node);
             ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
-            ts.setEmitFlags(parameter.name, 1024 /* NoTrailingSourceMap */);
+            ts.setEmitFlags(parameter.name, 32 /* NoTrailingSourceMap */);
             return parameter;
         }
         /**
@@ -46830,7 +46966,8 @@ var ts;
         function transformInitializedVariable(node) {
             var name = node.name;
             if (ts.isBindingPattern(name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createNamespaceExportExpression, visitor);
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0 /* All */, 
+                /*needsValue*/ false, createNamespaceExportExpression);
             }
             else {
                 return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), 
@@ -46910,14 +47047,14 @@ var ts;
             var statements = [];
             // We request to be advised when the printer is about to print this node. This allows
             // us to set up the correct state for later substitutions.
-            var emitFlags = 64 /* AdviseOnEmitNode */;
+            var emitFlags = 2 /* AdviseOnEmitNode */;
             // If needed, we should emit a variable declaration for the enum. If we emit
             // a leading variable declaration, we should not emit leading comments for the
             // enum body.
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 // We should still emit the comments if we are emitting a system module.
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384 /* NoLeadingComments */;
+                    emitFlags |= 512 /* NoLeadingComments */;
                 }
             }
             // `parameterName` is the declaration name used inside of the enum.
@@ -47094,7 +47231,7 @@ var ts;
                 //     })(m1 || (m1 = {})); // trailing comment module
                 //
                 ts.setCommentRange(statement, node);
-                ts.setEmitFlags(statement, 32768 /* NoTrailingComments */ | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(statement, 1024 /* NoTrailingComments */ | 2097152 /* HasEndOfDeclarationMarker */);
                 statements.push(statement);
                 return true;
             }
@@ -47104,7 +47241,7 @@ var ts;
                 // begin/end semantics of the declararation and to properly handle exports
                 // we wrap the leading variable declaration in a `MergeDeclarationMarker`.
                 var mergeMarker = ts.createMergeDeclarationMarker(statement);
-                ts.setEmitFlags(mergeMarker, 49152 /* NoComments */ | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(mergeMarker, 1536 /* NoComments */ | 2097152 /* HasEndOfDeclarationMarker */);
                 statements.push(mergeMarker);
                 return false;
             }
@@ -47125,14 +47262,14 @@ var ts;
             var statements = [];
             // We request to be advised when the printer is about to print this node. This allows
             // us to set up the correct state for later substitutions.
-            var emitFlags = 64 /* AdviseOnEmitNode */;
+            var emitFlags = 2 /* AdviseOnEmitNode */;
             // If needed, we should emit a variable declaration for the module. If we emit
             // a leading variable declaration, we should not emit leading comments for the
             // module body.
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 // We should still emit the comments if we are emitting a system module.
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384 /* NoLeadingComments */;
+                    emitFlags |= 512 /* NoLeadingComments */;
                 }
             }
             // `parameterName` is the declaration name used inside of the namespace.
@@ -47235,7 +47372,7 @@ var ts;
             // })(hello || (hello = {}));
             // We only want to emit comment on the namespace which contains block body itself, not the containing namespaces.
             if (body.kind !== 231 /* ModuleBlock */) {
-                ts.setEmitFlags(block, ts.getEmitFlags(block) | 49152 /* NoComments */);
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536 /* NoComments */);
             }
             return block;
         }
@@ -47384,7 +47521,7 @@ var ts;
                 return undefined;
             }
             var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
-            ts.setEmitFlags(moduleReference, 49152 /* NoComments */ | 65536 /* NoNestedComments */);
+            ts.setEmitFlags(moduleReference, 1536 /* NoComments */ | 2048 /* NoNestedComments */);
             if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
                 //  export var ${name} = ${moduleReference};
                 //  var ${name} = ${moduleReference};
@@ -47602,10 +47739,10 @@ var ts;
                     if (declaration) {
                         var classAlias = classAliases[declaration.id];
                         if (classAlias) {
-                            var clone_4 = ts.getSynthesizedClone(classAlias);
-                            ts.setSourceMapRange(clone_4, node);
-                            ts.setCommentRange(clone_4, node);
-                            return clone_4;
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
                         }
                     }
                 }
@@ -47614,7 +47751,7 @@ var ts;
         }
         function trySubstituteNamespaceExportedName(node) {
             // If this is explicitly a local name, do not substitute.
-            if (enabledSubstitutions & applicableSubstitutions && !ts.isLocalName(node)) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 // If we are nested within a namespace declaration, we may need to qualifiy
                 // an identifier that is exported from a merged namespace.
                 var container = resolver.getReferencedExportContainer(node, /*prefixLocals*/ false);
@@ -47661,13 +47798,335 @@ var ts;
         }
     }
     ts.transformTypeScript = transformTypeScript;
+    var paramHelper = {
+        name: "typescript:param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(paramHelper);
+        return ts.createCall(ts.getHelperName("__param"), 
+        /*typeArguments*/ undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ], location);
+    }
+    var metadataHelper = {
+        name: "typescript:metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(metadataHelper);
+        return ts.createCall(ts.getHelperName("__metadata"), 
+        /*typeArguments*/ undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    var decorateHelper = {
+        name: "typescript:decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        context.requestEmitHelper(decorateHelper);
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, /*location*/ undefined, /*multiLine*/ true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        return ts.createCall(ts.getHelperName("__decorate"), /*typeArguments*/ undefined, argumentsArray, location);
+    }
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
 /*@internal*/
 var ts;
 (function (ts) {
-    var entities = createEntitiesMap();
+    function transformESNext(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        return transformSourceFile;
+        function transformSourceFile(node) {
+            if (ts.isDeclarationFile(node)) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, /*noDestructuringValue*/ false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, /*noDestructuringValue*/ true);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 8 /* ContainsESNext */) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 176 /* ObjectLiteralExpression */:
+                    return visitObjectLiteralExpression(node);
+                case 192 /* BinaryExpression */:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 223 /* VariableDeclaration */:
+                    return visitVariableDeclaration(node);
+                case 213 /* ForOfStatement */:
+                    return visitForOfStatement(node);
+                case 211 /* ForStatement */:
+                    return visitForStatement(node);
+                case 188 /* VoidExpression */:
+                    return visitVoidExpression(node);
+                case 150 /* Constructor */:
+                    return visitConstructorDeclaration(node);
+                case 149 /* MethodDeclaration */:
+                    return visitMethodDeclaration(node);
+                case 151 /* GetAccessor */:
+                    return visitGetAccessorDeclaration(node);
+                case 152 /* SetAccessor */:
+                    return visitSetAccessorDeclaration(node);
+                case 225 /* FunctionDeclaration */:
+                    return visitFunctionDeclaration(node);
+                case 184 /* FunctionExpression */:
+                    return visitFunctionExpression(node);
+                case 185 /* ArrowFunction */:
+                    return visitArrowFunction(node);
+                case 144 /* Parameter */:
+                    return visitParameter(node);
+                case 207 /* ExpressionStatement */:
+                    return visitExpressionStatement(node);
+                case 183 /* ParenthesizedExpression */:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+                var e = elements_3[_i];
+                if (e.kind === 259 /* SpreadAssignment */) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    if (!chunkObject) {
+                        chunkObject = [];
+                    }
+                    if (e.kind === 257 /* PropertyAssignment */) {
+                        var p = e;
+                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
+                    }
+                    else {
+                        chunkObject.push(e);
+                    }
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 1048576 /* ContainsObjectSpread */) {
+                // spread elements emit like so:
+                // non-spread elements are chunked together into object literals, and then all are passed to __assign:
+                //     { a, ...o, b } => __assign({a}, o, {b});
+                // If the first element is a spread element, then the first argument to __assign is {}:
+                //     { ...o, a, b, ...o2 } => __assign({}, o, {a, b}, o2)
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 176 /* ObjectLiteralExpression */) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                return createAssignHelper(context, objects);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        /**
+         * Visits a BinaryExpression that contains a destructuring assignment.
+         *
+         * @param node A BinaryExpression node.
+         */
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576 /* ContainsObjectRest */) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1 /* ObjectRest */, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 25 /* CommaToken */) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        /**
+         * Visits a VariableDeclaration node with a binding pattern.
+         *
+         * @param node A VariableDeclaration node.
+         */
+        function visitVariableDeclaration(node) {
+            // If we are here it is because the name contains a binding pattern with a rest somewhere in it.
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576 /* ContainsObjectRest */) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1 /* ObjectRest */);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        /**
+         * Visits a ForOfStatement and converts it into a ES2015-compatible ForOfStatement.
+         *
+         * @param node A ForOfStatement.
+         */
+        function visitForOfStatement(node) {
+            var leadingStatements;
+            var temp;
+            var initializer = ts.skipParentheses(node.initializer);
+            if (initializer.transformFlags & 1048576 /* ContainsObjectRest */) {
+                if (ts.isVariableDeclarationList(initializer)) {
+                    temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
+                    var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1 /* ObjectRest */, temp, 
+                    /*doNotRecordTempVariablesInLine*/ false, 
+                    /*skipInitializer*/ true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(
+                        /*modifiers*/ undefined, ts.updateVariableDeclarationList(initializer, declarations), 
+                        /*location*/ initializer);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+                else if (ts.isAssignmentPattern(initializer)) {
+                    temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, /*location*/ node.initializer)), visitor, context, 1 /* ObjectRest */);
+                    leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, /*location*/ node.initializer));
+                }
+            }
+            if (temp) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                var block = ts.isBlock(statement)
+                    ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
+                    : ts.createBlock(ts.append(leadingStatements, statement), statement, /*multiLine*/ true);
+                return ts.updateForOf(node, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(temp, /*type*/ undefined, /*initializer*/ undefined, node.initializer)
+                ], node.initializer, 1 /* Let */), expression, block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 1048576 /* ContainsObjectRest */) {
+                // Binding patterns are converted into a generated name and are
+                // evaluated inside the function body.
+                return ts.updateParameter(node, 
+                /*decorators*/ undefined, 
+                /*modifiers*/ undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), 
+                /*type*/ undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            return ts.updateConstructor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitGetAccessorDeclaration(node) {
+            return ts.updateGetAccessor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitSetAccessorDeclaration(node) {
+            return ts.updateSetAccessor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, node.modifiers, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var leadingStatements;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 1048576 /* ContainsObjectRest */) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1 /* ObjectRest */, temp, 
+                    /*doNotRecordTempVariablesInLine*/ false, 
+                    /*skipInitializer*/ true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(
+                        /*modifiers*/ undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 524288 /* CustomPrologue */);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+            }
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            var trailingStatements = endLexicalEnvironment();
+            if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
+                var block = ts.convertToFunctionBody(body, /*multiLine*/ true);
+                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
+            }
+            return body;
+        }
+    }
+    ts.transformESNext = transformESNext;
+    var assignHelper = {
+        name: "typescript:assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        context.requestEmitHelper(assignHelper);
+        return ts.createCall(ts.getHelperName("__assign"), 
+        /*typeArguments*/ undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
+})(ts || (ts = {}));
+/// <reference path="../factory.ts" />
+/// <reference path="../visitor.ts" />
+/// <reference path="./esnext.ts" />
+/*@internal*/
+var ts;
+(function (ts) {
     function transformJsx(context) {
         var compilerOptions = context.getCompilerOptions();
         var currentSourceFile;
@@ -47682,17 +48141,15 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            node = ts.visitEachChild(node, visitor, context);
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
             currentSourceFile = undefined;
-            return node;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 4 /* Jsx */) {
+            if (node.transformFlags & 4 /* ContainsJsx */) {
                 return visitorWorker(node);
             }
-            else if (node.transformFlags & 8 /* ContainsJsx */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
             else {
                 return node;
             }
@@ -47706,8 +48163,7 @@ var ts;
                 case 252 /* JsxExpression */:
                     return visitJsxExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return undefined;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function transformJsxChildToExpression(node) {
@@ -47752,8 +48208,10 @@ var ts;
                 }
                 // Either emit one big object literal (no spread attribs), or
                 // a call to the __assign helper.
-                objectProperties = ts.singleOrUndefined(segments)
-                    || ts.createAssignHelper(currentSourceFile.externalHelpersModuleName, segments);
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
             }
             var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
             if (isChild) {
@@ -47891,519 +48349,285 @@ var ts;
         }
     }
     ts.transformJsx = transformJsx;
-    function createEntitiesMap() {
-        return ts.createMap({
-            "quot": 0x0022,
-            "amp": 0x0026,
-            "apos": 0x0027,
-            "lt": 0x003C,
-            "gt": 0x003E,
-            "nbsp": 0x00A0,
-            "iexcl": 0x00A1,
-            "cent": 0x00A2,
-            "pound": 0x00A3,
-            "curren": 0x00A4,
-            "yen": 0x00A5,
-            "brvbar": 0x00A6,
-            "sect": 0x00A7,
-            "uml": 0x00A8,
-            "copy": 0x00A9,
-            "ordf": 0x00AA,
-            "laquo": 0x00AB,
-            "not": 0x00AC,
-            "shy": 0x00AD,
-            "reg": 0x00AE,
-            "macr": 0x00AF,
-            "deg": 0x00B0,
-            "plusmn": 0x00B1,
-            "sup2": 0x00B2,
-            "sup3": 0x00B3,
-            "acute": 0x00B4,
-            "micro": 0x00B5,
-            "para": 0x00B6,
-            "middot": 0x00B7,
-            "cedil": 0x00B8,
-            "sup1": 0x00B9,
-            "ordm": 0x00BA,
-            "raquo": 0x00BB,
-            "frac14": 0x00BC,
-            "frac12": 0x00BD,
-            "frac34": 0x00BE,
-            "iquest": 0x00BF,
-            "Agrave": 0x00C0,
-            "Aacute": 0x00C1,
-            "Acirc": 0x00C2,
-            "Atilde": 0x00C3,
-            "Auml": 0x00C4,
-            "Aring": 0x00C5,
-            "AElig": 0x00C6,
-            "Ccedil": 0x00C7,
-            "Egrave": 0x00C8,
-            "Eacute": 0x00C9,
-            "Ecirc": 0x00CA,
-            "Euml": 0x00CB,
-            "Igrave": 0x00CC,
-            "Iacute": 0x00CD,
-            "Icirc": 0x00CE,
-            "Iuml": 0x00CF,
-            "ETH": 0x00D0,
-            "Ntilde": 0x00D1,
-            "Ograve": 0x00D2,
-            "Oacute": 0x00D3,
-            "Ocirc": 0x00D4,
-            "Otilde": 0x00D5,
-            "Ouml": 0x00D6,
-            "times": 0x00D7,
-            "Oslash": 0x00D8,
-            "Ugrave": 0x00D9,
-            "Uacute": 0x00DA,
-            "Ucirc": 0x00DB,
-            "Uuml": 0x00DC,
-            "Yacute": 0x00DD,
-            "THORN": 0x00DE,
-            "szlig": 0x00DF,
-            "agrave": 0x00E0,
-            "aacute": 0x00E1,
-            "acirc": 0x00E2,
-            "atilde": 0x00E3,
-            "auml": 0x00E4,
-            "aring": 0x00E5,
-            "aelig": 0x00E6,
-            "ccedil": 0x00E7,
-            "egrave": 0x00E8,
-            "eacute": 0x00E9,
-            "ecirc": 0x00EA,
-            "euml": 0x00EB,
-            "igrave": 0x00EC,
-            "iacute": 0x00ED,
-            "icirc": 0x00EE,
-            "iuml": 0x00EF,
-            "eth": 0x00F0,
-            "ntilde": 0x00F1,
-            "ograve": 0x00F2,
-            "oacute": 0x00F3,
-            "ocirc": 0x00F4,
-            "otilde": 0x00F5,
-            "ouml": 0x00F6,
-            "divide": 0x00F7,
-            "oslash": 0x00F8,
-            "ugrave": 0x00F9,
-            "uacute": 0x00FA,
-            "ucirc": 0x00FB,
-            "uuml": 0x00FC,
-            "yacute": 0x00FD,
-            "thorn": 0x00FE,
-            "yuml": 0x00FF,
-            "OElig": 0x0152,
-            "oelig": 0x0153,
-            "Scaron": 0x0160,
-            "scaron": 0x0161,
-            "Yuml": 0x0178,
-            "fnof": 0x0192,
-            "circ": 0x02C6,
-            "tilde": 0x02DC,
-            "Alpha": 0x0391,
-            "Beta": 0x0392,
-            "Gamma": 0x0393,
-            "Delta": 0x0394,
-            "Epsilon": 0x0395,
-            "Zeta": 0x0396,
-            "Eta": 0x0397,
-            "Theta": 0x0398,
-            "Iota": 0x0399,
-            "Kappa": 0x039A,
-            "Lambda": 0x039B,
-            "Mu": 0x039C,
-            "Nu": 0x039D,
-            "Xi": 0x039E,
-            "Omicron": 0x039F,
-            "Pi": 0x03A0,
-            "Rho": 0x03A1,
-            "Sigma": 0x03A3,
-            "Tau": 0x03A4,
-            "Upsilon": 0x03A5,
-            "Phi": 0x03A6,
-            "Chi": 0x03A7,
-            "Psi": 0x03A8,
-            "Omega": 0x03A9,
-            "alpha": 0x03B1,
-            "beta": 0x03B2,
-            "gamma": 0x03B3,
-            "delta": 0x03B4,
-            "epsilon": 0x03B5,
-            "zeta": 0x03B6,
-            "eta": 0x03B7,
-            "theta": 0x03B8,
-            "iota": 0x03B9,
-            "kappa": 0x03BA,
-            "lambda": 0x03BB,
-            "mu": 0x03BC,
-            "nu": 0x03BD,
-            "xi": 0x03BE,
-            "omicron": 0x03BF,
-            "pi": 0x03C0,
-            "rho": 0x03C1,
-            "sigmaf": 0x03C2,
-            "sigma": 0x03C3,
-            "tau": 0x03C4,
-            "upsilon": 0x03C5,
-            "phi": 0x03C6,
-            "chi": 0x03C7,
-            "psi": 0x03C8,
-            "omega": 0x03C9,
-            "thetasym": 0x03D1,
-            "upsih": 0x03D2,
-            "piv": 0x03D6,
-            "ensp": 0x2002,
-            "emsp": 0x2003,
-            "thinsp": 0x2009,
-            "zwnj": 0x200C,
-            "zwj": 0x200D,
-            "lrm": 0x200E,
-            "rlm": 0x200F,
-            "ndash": 0x2013,
-            "mdash": 0x2014,
-            "lsquo": 0x2018,
-            "rsquo": 0x2019,
-            "sbquo": 0x201A,
-            "ldquo": 0x201C,
-            "rdquo": 0x201D,
-            "bdquo": 0x201E,
-            "dagger": 0x2020,
-            "Dagger": 0x2021,
-            "bull": 0x2022,
-            "hellip": 0x2026,
-            "permil": 0x2030,
-            "prime": 0x2032,
-            "Prime": 0x2033,
-            "lsaquo": 0x2039,
-            "rsaquo": 0x203A,
-            "oline": 0x203E,
-            "frasl": 0x2044,
-            "euro": 0x20AC,
-            "image": 0x2111,
-            "weierp": 0x2118,
-            "real": 0x211C,
-            "trade": 0x2122,
-            "alefsym": 0x2135,
-            "larr": 0x2190,
-            "uarr": 0x2191,
-            "rarr": 0x2192,
-            "darr": 0x2193,
-            "harr": 0x2194,
-            "crarr": 0x21B5,
-            "lArr": 0x21D0,
-            "uArr": 0x21D1,
-            "rArr": 0x21D2,
-            "dArr": 0x21D3,
-            "hArr": 0x21D4,
-            "forall": 0x2200,
-            "part": 0x2202,
-            "exist": 0x2203,
-            "empty": 0x2205,
-            "nabla": 0x2207,
-            "isin": 0x2208,
-            "notin": 0x2209,
-            "ni": 0x220B,
-            "prod": 0x220F,
-            "sum": 0x2211,
-            "minus": 0x2212,
-            "lowast": 0x2217,
-            "radic": 0x221A,
-            "prop": 0x221D,
-            "infin": 0x221E,
-            "ang": 0x2220,
-            "and": 0x2227,
-            "or": 0x2228,
-            "cap": 0x2229,
-            "cup": 0x222A,
-            "int": 0x222B,
-            "there4": 0x2234,
-            "sim": 0x223C,
-            "cong": 0x2245,
-            "asymp": 0x2248,
-            "ne": 0x2260,
-            "equiv": 0x2261,
-            "le": 0x2264,
-            "ge": 0x2265,
-            "sub": 0x2282,
-            "sup": 0x2283,
-            "nsub": 0x2284,
-            "sube": 0x2286,
-            "supe": 0x2287,
-            "oplus": 0x2295,
-            "otimes": 0x2297,
-            "perp": 0x22A5,
-            "sdot": 0x22C5,
-            "lceil": 0x2308,
-            "rceil": 0x2309,
-            "lfloor": 0x230A,
-            "rfloor": 0x230B,
-            "lang": 0x2329,
-            "rang": 0x232A,
-            "loz": 0x25CA,
-            "spades": 0x2660,
-            "clubs": 0x2663,
-            "hearts": 0x2665,
-            "diams": 0x2666
-        });
-    }
-})(ts || (ts = {}));
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/*@internal*/
-var ts;
-(function (ts) {
-    function transformESNext(context) {
-        var hoistVariableDeclaration = context.hoistVariableDeclaration;
-        var currentSourceFile;
-        return transformSourceFile;
-        function transformSourceFile(node) {
-            currentSourceFile = node;
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitor(node) {
-            if (node.transformFlags & 16 /* ESNext */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 32 /* ContainsESNext */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
-                return node;
-            }
-        }
-        function visitorWorker(node) {
-            switch (node.kind) {
-                case 176 /* ObjectLiteralExpression */:
-                    return visitObjectLiteralExpression(node);
-                case 192 /* BinaryExpression */:
-                    return visitBinaryExpression(node);
-                case 223 /* VariableDeclaration */:
-                    return visitVariableDeclaration(node);
-                case 213 /* ForOfStatement */:
-                    return visitForOfStatement(node);
-                case 172 /* ObjectBindingPattern */:
-                case 173 /* ArrayBindingPattern */:
-                    return node;
-                case 225 /* FunctionDeclaration */:
-                    return visitFunctionDeclaration(node);
-                case 184 /* FunctionExpression */:
-                    return visitFunctionExpression(node);
-                case 185 /* ArrowFunction */:
-                    return visitArrowFunction(node);
-                case 144 /* Parameter */:
-                    return visitParameter(node);
-                default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return ts.visitEachChild(node, visitor, context);
-            }
-        }
-        function chunkObjectLiteralElements(elements) {
-            var chunkObject;
-            var objects = [];
-            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
-                var e = elements_3[_i];
-                if (e.kind === 259 /* SpreadAssignment */) {
-                    if (chunkObject) {
-                        objects.push(ts.createObjectLiteral(chunkObject));
-                        chunkObject = undefined;
-                    }
-                    var target = e.expression;
-                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
-                }
-                else {
-                    if (!chunkObject) {
-                        chunkObject = [];
-                    }
-                    if (e.kind === 257 /* PropertyAssignment */) {
-                        var p = e;
-                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
-                    }
-                    else {
-                        chunkObject.push(e);
-                    }
-                }
-            }
-            if (chunkObject) {
-                objects.push(ts.createObjectLiteral(chunkObject));
-            }
-            return objects;
-        }
-        function visitObjectLiteralExpression(node) {
-            // spread elements emit like so:
-            // non-spread elements are chunked together into object literals, and then all are passed to __assign:
-            //     { a, ...o, b } => __assign({a}, o, {b});
-            // If the first element is a spread element, then the first argument to __assign is {}:
-            //     { ...o, a, b, ...o2 } => __assign({}, o, {a, b}, o2)
-            if (ts.forEach(node.properties, function (p) { return p.kind === 259 /* SpreadAssignment */; })) {
-                var objects = chunkObjectLiteralElements(node.properties);
-                if (objects.length && objects[0].kind !== 176 /* ObjectLiteralExpression */) {
-                    objects.unshift(ts.createObjectLiteral());
-                }
-                return ts.aggregateTransformFlags(ts.createCall(ts.createIdentifier("__assign"), undefined, objects));
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a BinaryExpression that contains a destructuring assignment.
-         *
-         * @param node A BinaryExpression node.
-         */
-        function visitBinaryExpression(node) {
-            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 48 /* AssertESNext */) {
-                return ts.flattenDestructuringAssignment(context, node, /*needsDestructuringValue*/ true, hoistVariableDeclaration, visitor, /*transformRest*/ true);
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a VariableDeclaration node with a binding pattern.
-         *
-         * @param node A VariableDeclaration node.
-         */
-        function visitVariableDeclaration(node) {
-            // If we are here it is because the name contains a binding pattern with a rest somewhere in it.
-            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 48 /* AssertESNext */) {
-                var result = ts.flattenVariableDestructuring(node, /*value*/ undefined, visitor, /*recordTempVariable*/ undefined, /*transformRest*/ true);
-                return result;
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a ForOfStatement and converts it into a ES2015-compatible ForOfStatement.
-         *
-         * @param node A ForOfStatement.
-         */
-        function visitForOfStatement(node) {
-            // The following ESNext code:
-            //
-            //    for (let { x, y, ...rest } of expr) { }
-            //
-            // should be emitted as
-            //
-            //    for (var _a of expr) {
-            //        let { x, y } = _a, rest = __rest(_a, ["x", "y"]);
-            //    }
-            //
-            // where _a is a temp emitted to capture the RHS.
-            // When the left hand side is an expression instead of a let declaration,
-            // the `let` before the `{ x, y }` is not emitted.
-            // When the left hand side is a let/const, the v is renamed if there is
-            // another v in scope.
-            // Note that all assignments to the LHS are emitted in the body, including
-            // all destructuring.
-            // Note also that because an extra statement is needed to assign to the LHS,
-            // for-of bodies are always emitted as blocks.
-            // for (<init> of <expression>) <statement>
-            // where <init> is [let] variabledeclarationlist | expression
-            var initializer = node.initializer;
-            if (!isRestBindingPattern(initializer) && !isRestAssignment(initializer)) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            return ts.convertForOf(node, undefined, visitor, ts.noop, context, /*transformRest*/ true);
-        }
-        function isRestBindingPattern(initializer) {
-            if (ts.isVariableDeclarationList(initializer)) {
-                var declaration = ts.firstOrUndefined(initializer.declarations);
-                return declaration && declaration.name &&
-                    declaration.name.kind === 172 /* ObjectBindingPattern */ &&
-                    !!(declaration.name.transformFlags & 8388608 /* ContainsSpreadExpression */);
-            }
-            return false;
-        }
-        function isRestAssignment(initializer) {
-            return initializer.kind === 176 /* ObjectLiteralExpression */ &&
-                initializer.transformFlags & 8388608 /* ContainsSpreadExpression */;
-        }
-        function visitParameter(node) {
-            if (isObjectRestParameter(node)) {
-                // Binding patterns are converted into a generated name and are
-                // evaluated inside the function body.
-                return ts.setOriginalNode(ts.createParameter(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, 
-                /*dotDotDotToken*/ undefined, ts.getGeneratedNameForNode(node), 
-                /*questionToken*/ undefined, 
-                /*type*/ undefined, node.initializer, 
-                /*location*/ node), 
-                /*original*/ node);
-            }
-            else {
-                return node;
-            }
-        }
-        function isObjectRestParameter(node) {
-            return node.name &&
-                node.name.kind === 172 /* ObjectBindingPattern */ &&
-                !!(node.name.transformFlags & 8388608 /* ContainsSpreadExpression */);
-        }
-        function visitFunctionDeclaration(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionDeclaration(
-            /*decorators*/ undefined, node.modifiers, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, body, 
-            /*location*/ node), 
-            /*original*/ node);
-        }
-        function visitArrowFunction(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            var func = ts.setOriginalNode(ts.createArrowFunction(node.modifiers, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, body, 
-            /*location*/ node), 
-            /*original*/ node);
-            ts.setEmitFlags(func, 256 /* CapturesThis */);
-            return func;
-        }
-        function visitFunctionExpression(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionExpression(node.modifiers, node.asteriskToken, name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, body, 
-            /*location*/ node), 
-            /*original*/ node);
-        }
-    }
-    ts.transformESNext = transformESNext;
+    var entities = ts.createMap({
+        "quot": 0x0022,
+        "amp": 0x0026,
+        "apos": 0x0027,
+        "lt": 0x003C,
+        "gt": 0x003E,
+        "nbsp": 0x00A0,
+        "iexcl": 0x00A1,
+        "cent": 0x00A2,
+        "pound": 0x00A3,
+        "curren": 0x00A4,
+        "yen": 0x00A5,
+        "brvbar": 0x00A6,
+        "sect": 0x00A7,
+        "uml": 0x00A8,
+        "copy": 0x00A9,
+        "ordf": 0x00AA,
+        "laquo": 0x00AB,
+        "not": 0x00AC,
+        "shy": 0x00AD,
+        "reg": 0x00AE,
+        "macr": 0x00AF,
+        "deg": 0x00B0,
+        "plusmn": 0x00B1,
+        "sup2": 0x00B2,
+        "sup3": 0x00B3,
+        "acute": 0x00B4,
+        "micro": 0x00B5,
+        "para": 0x00B6,
+        "middot": 0x00B7,
+        "cedil": 0x00B8,
+        "sup1": 0x00B9,
+        "ordm": 0x00BA,
+        "raquo": 0x00BB,
+        "frac14": 0x00BC,
+        "frac12": 0x00BD,
+        "frac34": 0x00BE,
+        "iquest": 0x00BF,
+        "Agrave": 0x00C0,
+        "Aacute": 0x00C1,
+        "Acirc": 0x00C2,
+        "Atilde": 0x00C3,
+        "Auml": 0x00C4,
+        "Aring": 0x00C5,
+        "AElig": 0x00C6,
+        "Ccedil": 0x00C7,
+        "Egrave": 0x00C8,
+        "Eacute": 0x00C9,
+        "Ecirc": 0x00CA,
+        "Euml": 0x00CB,
+        "Igrave": 0x00CC,
+        "Iacute": 0x00CD,
+        "Icirc": 0x00CE,
+        "Iuml": 0x00CF,
+        "ETH": 0x00D0,
+        "Ntilde": 0x00D1,
+        "Ograve": 0x00D2,
+        "Oacute": 0x00D3,
+        "Ocirc": 0x00D4,
+        "Otilde": 0x00D5,
+        "Ouml": 0x00D6,
+        "times": 0x00D7,
+        "Oslash": 0x00D8,
+        "Ugrave": 0x00D9,
+        "Uacute": 0x00DA,
+        "Ucirc": 0x00DB,
+        "Uuml": 0x00DC,
+        "Yacute": 0x00DD,
+        "THORN": 0x00DE,
+        "szlig": 0x00DF,
+        "agrave": 0x00E0,
+        "aacute": 0x00E1,
+        "acirc": 0x00E2,
+        "atilde": 0x00E3,
+        "auml": 0x00E4,
+        "aring": 0x00E5,
+        "aelig": 0x00E6,
+        "ccedil": 0x00E7,
+        "egrave": 0x00E8,
+        "eacute": 0x00E9,
+        "ecirc": 0x00EA,
+        "euml": 0x00EB,
+        "igrave": 0x00EC,
+        "iacute": 0x00ED,
+        "icirc": 0x00EE,
+        "iuml": 0x00EF,
+        "eth": 0x00F0,
+        "ntilde": 0x00F1,
+        "ograve": 0x00F2,
+        "oacute": 0x00F3,
+        "ocirc": 0x00F4,
+        "otilde": 0x00F5,
+        "ouml": 0x00F6,
+        "divide": 0x00F7,
+        "oslash": 0x00F8,
+        "ugrave": 0x00F9,
+        "uacute": 0x00FA,
+        "ucirc": 0x00FB,
+        "uuml": 0x00FC,
+        "yacute": 0x00FD,
+        "thorn": 0x00FE,
+        "yuml": 0x00FF,
+        "OElig": 0x0152,
+        "oelig": 0x0153,
+        "Scaron": 0x0160,
+        "scaron": 0x0161,
+        "Yuml": 0x0178,
+        "fnof": 0x0192,
+        "circ": 0x02C6,
+        "tilde": 0x02DC,
+        "Alpha": 0x0391,
+        "Beta": 0x0392,
+        "Gamma": 0x0393,
+        "Delta": 0x0394,
+        "Epsilon": 0x0395,
+        "Zeta": 0x0396,
+        "Eta": 0x0397,
+        "Theta": 0x0398,
+        "Iota": 0x0399,
+        "Kappa": 0x039A,
+        "Lambda": 0x039B,
+        "Mu": 0x039C,
+        "Nu": 0x039D,
+        "Xi": 0x039E,
+        "Omicron": 0x039F,
+        "Pi": 0x03A0,
+        "Rho": 0x03A1,
+        "Sigma": 0x03A3,
+        "Tau": 0x03A4,
+        "Upsilon": 0x03A5,
+        "Phi": 0x03A6,
+        "Chi": 0x03A7,
+        "Psi": 0x03A8,
+        "Omega": 0x03A9,
+        "alpha": 0x03B1,
+        "beta": 0x03B2,
+        "gamma": 0x03B3,
+        "delta": 0x03B4,
+        "epsilon": 0x03B5,
+        "zeta": 0x03B6,
+        "eta": 0x03B7,
+        "theta": 0x03B8,
+        "iota": 0x03B9,
+        "kappa": 0x03BA,
+        "lambda": 0x03BB,
+        "mu": 0x03BC,
+        "nu": 0x03BD,
+        "xi": 0x03BE,
+        "omicron": 0x03BF,
+        "pi": 0x03C0,
+        "rho": 0x03C1,
+        "sigmaf": 0x03C2,
+        "sigma": 0x03C3,
+        "tau": 0x03C4,
+        "upsilon": 0x03C5,
+        "phi": 0x03C6,
+        "chi": 0x03C7,
+        "psi": 0x03C8,
+        "omega": 0x03C9,
+        "thetasym": 0x03D1,
+        "upsih": 0x03D2,
+        "piv": 0x03D6,
+        "ensp": 0x2002,
+        "emsp": 0x2003,
+        "thinsp": 0x2009,
+        "zwnj": 0x200C,
+        "zwj": 0x200D,
+        "lrm": 0x200E,
+        "rlm": 0x200F,
+        "ndash": 0x2013,
+        "mdash": 0x2014,
+        "lsquo": 0x2018,
+        "rsquo": 0x2019,
+        "sbquo": 0x201A,
+        "ldquo": 0x201C,
+        "rdquo": 0x201D,
+        "bdquo": 0x201E,
+        "dagger": 0x2020,
+        "Dagger": 0x2021,
+        "bull": 0x2022,
+        "hellip": 0x2026,
+        "permil": 0x2030,
+        "prime": 0x2032,
+        "Prime": 0x2033,
+        "lsaquo": 0x2039,
+        "rsaquo": 0x203A,
+        "oline": 0x203E,
+        "frasl": 0x2044,
+        "euro": 0x20AC,
+        "image": 0x2111,
+        "weierp": 0x2118,
+        "real": 0x211C,
+        "trade": 0x2122,
+        "alefsym": 0x2135,
+        "larr": 0x2190,
+        "uarr": 0x2191,
+        "rarr": 0x2192,
+        "darr": 0x2193,
+        "harr": 0x2194,
+        "crarr": 0x21B5,
+        "lArr": 0x21D0,
+        "uArr": 0x21D1,
+        "rArr": 0x21D2,
+        "dArr": 0x21D3,
+        "hArr": 0x21D4,
+        "forall": 0x2200,
+        "part": 0x2202,
+        "exist": 0x2203,
+        "empty": 0x2205,
+        "nabla": 0x2207,
+        "isin": 0x2208,
+        "notin": 0x2209,
+        "ni": 0x220B,
+        "prod": 0x220F,
+        "sum": 0x2211,
+        "minus": 0x2212,
+        "lowast": 0x2217,
+        "radic": 0x221A,
+        "prop": 0x221D,
+        "infin": 0x221E,
+        "ang": 0x2220,
+        "and": 0x2227,
+        "or": 0x2228,
+        "cap": 0x2229,
+        "cup": 0x222A,
+        "int": 0x222B,
+        "there4": 0x2234,
+        "sim": 0x223C,
+        "cong": 0x2245,
+        "asymp": 0x2248,
+        "ne": 0x2260,
+        "equiv": 0x2261,
+        "le": 0x2264,
+        "ge": 0x2265,
+        "sub": 0x2282,
+        "sup": 0x2283,
+        "nsub": 0x2284,
+        "sube": 0x2286,
+        "supe": 0x2287,
+        "oplus": 0x2295,
+        "otimes": 0x2297,
+        "perp": 0x22A5,
+        "sdot": 0x22C5,
+        "lceil": 0x2308,
+        "rceil": 0x2309,
+        "lfloor": 0x230A,
+        "rfloor": 0x230B,
+        "lang": 0x2329,
+        "rang": 0x232A,
+        "loz": 0x25CA,
+        "spades": 0x2660,
+        "clubs": 0x2663,
+        "hearts": 0x2665,
+        "diams": 0x2666
+    });
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
 /*@internal*/
 var ts;
 (function (ts) {
+    var ES2017SubstitutionFlags;
+    (function (ES2017SubstitutionFlags) {
+        /** Enables substitutions for async methods with `super` calls. */
+        ES2017SubstitutionFlags[ES2017SubstitutionFlags["AsyncMethodsWithSuper"] = 1] = "AsyncMethodsWithSuper";
+    })(ES2017SubstitutionFlags || (ES2017SubstitutionFlags = {}));
     function transformES2017(context) {
-        var ES2017SubstitutionFlags;
-        (function (ES2017SubstitutionFlags) {
-            /** Enables substitutions for async methods with `super` calls. */
-            ES2017SubstitutionFlags[ES2017SubstitutionFlags["AsyncMethodsWithSuper"] = 1] = "AsyncMethodsWithSuper";
-        })(ES2017SubstitutionFlags || (ES2017SubstitutionFlags = {}));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         // These variables contain state that changes as we descend into the tree.
-        var currentSourceFileExternalHelpersModuleName;
+        var currentSourceFile;
         /**
          * Keeps track of whether expression substitution has been enabled for specific edge cases.
          * They are persisted between each SourceFile transformation and should not be reset.
          */
         var enabledSubstitutions;
         /**
-         * Keeps track of whether  we are within any containing namespaces when performing
-         * just-in-time substitution while printing an expression identifier.
-         */
-        var applicableSubstitutions;
-        /**
          * This keeps track of containers where `super` is valid, for use with
          * just-in-time substitution for `super` expressions inside of async methods.
          */
@@ -48414,25 +48638,21 @@ var ts;
         // Set new transformation hooks.
         context.onEmitNode = onEmitNode;
         context.onSubstituteNode = onSubstituteNode;
-        var currentScope;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            currentSourceFileExternalHelpersModuleName = node.externalHelpersModuleName;
-            return ts.visitEachChild(node, visitor, context);
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 64 /* ES2017 */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 128 /* ContainsES2017 */) {
-                return ts.visitEachChild(node, visitor, context);
+            if ((node.transformFlags & 16 /* ContainsES2017 */) === 0) {
+                return node;
             }
-            return node;
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 119 /* AsyncKeyword */:
                     // ES2017 async modifier should be elided for targets < ES2017
@@ -48453,16 +48673,15 @@ var ts;
                     // ES2017 arrow functions may be 'async'
                     return visitArrowFunction(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return node;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         /**
-         * Visits an await expression.
+         * Visits an AwaitExpression node.
          *
          * This function will be called any time a ES2017 await expression is encountered.
          *
-         * @param node The await expression node.
+         * @param node The node to visit.
          */
         function visitAwaitExpression(node) {
             return ts.setOriginalNode(ts.createYield(
@@ -48470,106 +48689,73 @@ var ts;
             /*location*/ node), node);
         }
         /**
-         * Visits a method declaration of a class.
+         * Visits a MethodDeclaration node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked as async
          *
-         * @param node The method node.
+         * @param node The node to visit.
          */
         function visitMethodDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var method = ts.createMethod(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            return ts.updateMethod(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * Visits a function declaration.
+         * Visits a FunctionDeclaration node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
          *
-         * @param node The function node.
+         * @param node The node to visit.
          */
         function visitFunctionDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createFunctionDeclaration(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * Visits a function expression node.
+         * Visits a FunctionExpression node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
          *
-         * @param node The function expression node.
+         * @param node The node to visit.
          */
         function visitFunctionExpression(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(
-            /*modifiers*/ undefined, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionExpression(node, 
+            /*modifiers*/ undefined, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * @remarks
+         * Visits an ArrowFunction.
+         *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
+         *
+         * @param node The node to visit.
          */
         function visitArrowFunction(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, visitor, ts.isModifier), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, transformConciseBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformConciseBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            currentScope = body;
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
             var original = ts.getOriginalNode(node, ts.isFunctionLike);
             var nodeType = original.type;
             var promiseConstructor = languageVersion < 2 /* ES2015 */ ? getPromiseConstructor(nodeType) : undefined;
@@ -48583,54 +48769,51 @@ var ts;
             if (!isArrowFunction) {
                 var statements = [];
                 var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, /*ensureUseStrict*/ false, visitor);
-                statements.push(ts.createReturn(ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                ts.addRange(statements, endLexicalEnvironment());
                 var block = ts.createBlock(statements, /*location*/ node.body, /*multiLine*/ true);
                 // Minor optimization, emit `_super` helper to capture `super` access in an arrow.
                 // This step isn't needed if we eventually transform this to ES5.
                 if (languageVersion >= 2 /* ES2015 */) {
                     if (resolver.getNodeCheckFlags(node) & 4096 /* AsyncMethodWithSuperBinding */) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 8 /* EmitAdvancedSuperHelper */);
+                        ts.addEmitHelper(block, advancedAsyncSuperHelper);
                     }
                     else if (resolver.getNodeCheckFlags(node) & 2048 /* AsyncMethodWithSuper */) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 4 /* EmitSuperHelper */);
+                        ts.addEmitHelper(block, asyncSuperHelper);
                     }
                 }
                 return block;
             }
             else {
-                return ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformConciseBodyWorker(node.body, /*forceBlockFunctionBody*/ true));
+                var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
+                }
+                return expression;
             }
         }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
+        function transformFunctionBodyWorker(body, start) {
             if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
+                return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
             }
             else {
                 startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
+                var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
                 var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
+                return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
             }
         }
         function getPromiseConstructor(type) {
-            if (type) {
-                var typeName = ts.getEntityNameFromTypeNode(type);
-                if (typeName && ts.isEntityName(typeName)) {
-                    var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
-                    if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
-                        || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
-                        return typeName;
-                    }
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
                 }
             }
             return undefined;
@@ -48714,16 +48897,17 @@ var ts;
          * @param emit A callback used to emit the node in the printer.
          */
         function onEmitNode(emitContext, node, emitCallback) {
-            var savedApplicableSubstitutions = applicableSubstitutions;
-            var savedCurrentSuperContainer = currentSuperContainer;
             // If we need to support substitutions for `super` in an async method,
             // we should track it here.
             if (enabledSubstitutions & 1 /* AsyncMethodsWithSuper */ && isSuperContainer(node)) {
+                var savedCurrentSuperContainer = currentSuperContainer;
                 currentSuperContainer = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSuperContainer = savedCurrentSuperContainer;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
             }
-            previousOnEmitNode(emitContext, node, emitCallback);
-            applicableSubstitutions = savedApplicableSubstitutions;
-            currentSuperContainer = savedCurrentSuperContainer;
         }
         /**
          * Hooks node substitutions.
@@ -48755,6 +48939,40 @@ var ts;
         }
     }
     ts.transformES2017 = transformES2017;
+    function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(
+        /*modifiers*/ undefined, ts.createToken(38 /* AsteriskToken */), 
+        /*name*/ undefined, 
+        /*typeParameters*/ undefined, 
+        /*parameters*/ [], 
+        /*type*/ undefined, body);
+        // Mark this node as originally an async function
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072 /* AsyncFunctionBody */;
+        return ts.createCall(ts.getHelperName("__awaiter"), 
+        /*typeArguments*/ undefined, [
+            ts.createThis(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    var awaiterHelper = {
+        name: "typescript:awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments)).next());\n                });\n            };"
+    };
+    var asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: "\n            const _super = name => super[name];"
+    };
+    var advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
+    };
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
@@ -48771,64 +48989,60 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitor(node) {
-            if (node.transformFlags & 256 /* ES2016 */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 512 /* ContainsES2016 */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
+            if ((node.transformFlags & 32 /* ContainsES2016 */) === 0) {
                 return node;
             }
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 192 /* BinaryExpression */:
                     return visitBinaryExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
                     return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitBinaryExpression(node) {
-            // We are here because ES2016 adds support for the exponentiation operator.
+            switch (node.operatorToken.kind) {
+                case 61 /* AsteriskAsteriskEqualsToken */:
+                    return visitExponentiationAssignmentExpression(node);
+                case 39 /* AsteriskAsteriskToken */:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
             var left = ts.visitNode(node.left, visitor, ts.isExpression);
             var right = ts.visitNode(node.right, visitor, ts.isExpression);
-            if (node.operatorToken.kind === 61 /* AsteriskAsteriskEqualsToken */) {
-                var target = void 0;
-                var value = void 0;
-                if (ts.isElementAccessExpression(left)) {
-                    // Transforms `a[x] **= b` into `(_a = a)[_x = x] = Math.pow(_a[_x], b)`
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, /*location*/ left.argumentExpression), 
-                    /*location*/ left);
-                    value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, 
-                    /*location*/ left);
-                }
-                else if (ts.isPropertyAccessExpression(left)) {
-                    // Transforms `a.x **= b` into `(_a = a).x = Math.pow(_a.x, b)`
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), left.name, 
-                    /*location*/ left);
-                    value = ts.createPropertyAccess(expressionTemp, left.name, 
-                    /*location*/ left);
-                }
-                else {
-                    // Transforms `a **= b` into `a = Math.pow(a, b)`
-                    target = left;
-                    value = left;
-                }
-                return ts.createAssignment(target, ts.createMathPow(value, right, /*location*/ node), /*location*/ node);
-            }
-            else if (node.operatorToken.kind === 39 /* AsteriskAsteriskToken */) {
-                // Transforms `a ** b` into `Math.pow(a, b)`
-                return ts.createMathPow(left, right, /*location*/ node);
+            if (ts.isElementAccessExpression(left)) {
+                // Transforms `a[x] **= b` into `(_a = a)[_x = x] = Math.pow(_a[_x], b)`
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, /*location*/ left.argumentExpression), 
+                /*location*/ left);
+                value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, 
+                /*location*/ left);
+            }
+            else if (ts.isPropertyAccessExpression(left)) {
+                // Transforms `a.x **= b` into `(_a = a).x = Math.pow(_a.x, b)`
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), left.name, 
+                /*location*/ left);
+                value = ts.createPropertyAccess(expressionTemp, left.name, 
+                /*location*/ left);
             }
             else {
-                ts.Debug.failBadSyntaxKind(node);
-                return ts.visitEachChild(node, visitor, context);
+                // Transforms `a **= b` into `a = Math.pow(a, b)`
+                target = left;
+                value = left;
             }
+            return ts.createAssignment(target, ts.createMathPow(value, right, /*location*/ node), /*location*/ node);
+        }
+        function visitExponentiationExpression(node) {
+            // Transforms `a ** b` into `Math.pow(a, b)`
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, /*location*/ node);
         }
     }
     ts.transformES2016 = transformES2016;
@@ -48881,7 +49095,7 @@ var ts;
         SuperCaptureResult[SuperCaptureResult["ReplaceWithReturn"] = 2] = "ReplaceWithReturn";
     })(SuperCaptureResult || (SuperCaptureResult = {}));
     function transformES2015(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var previousOnSubstituteNode = context.onSubstituteNode;
         var previousOnEmitNode = context.onEmitNode;
@@ -48915,7 +49129,11 @@ var ts;
             }
             currentSourceFile = node;
             currentText = node.text;
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            return visited;
         }
         function visitor(node) {
             return saveStateAndInvoke(node, dispatcher);
@@ -48955,6 +49173,41 @@ var ts;
             currentNode = savedCurrentNode;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            if (currentNode) {
+                if (ts.isBlockScope(currentNode, currentParent)) {
+                    enclosingBlockScopeContainer = currentNode;
+                    enclosingBlockScopeContainerParent = currentParent;
+                }
+                if (ts.isFunctionLike(currentNode)) {
+                    enclosingFunction = currentNode;
+                    if (currentNode.kind !== 185 /* ArrowFunction */) {
+                        enclosingNonArrowFunction = currentNode;
+                        if (!(ts.getEmitFlags(currentNode) & 131072 /* AsyncFunctionBody */)) {
+                            enclosingNonAsyncFunctionBody = currentNode;
+                        }
+                    }
+                }
+                // keep track of the enclosing variable statement when in the context of
+                // variable statements, variable declarations, binding elements, and binding
+                // patterns.
+                switch (currentNode.kind) {
+                    case 205 /* VariableStatement */:
+                        enclosingVariableStatement = currentNode;
+                        break;
+                    case 224 /* VariableDeclarationList */:
+                    case 223 /* VariableDeclaration */:
+                    case 174 /* BindingElement */:
+                    case 172 /* ObjectBindingPattern */:
+                    case 173 /* ArrayBindingPattern */:
+                        break;
+                    default:
+                        enclosingVariableStatement = undefined;
+                }
+            }
+            currentParent = currentNode;
+            currentNode = node;
+        }
         function returnCapturedThis(node) {
             return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
         }
@@ -48962,7 +49215,7 @@ var ts;
             return isInConstructorWithCapturedSuper && node.kind === 216 /* ReturnStatement */ && !node.expression;
         }
         function shouldCheckNode(node) {
-            return (node.transformFlags & 1024 /* ES2015 */) !== 0 ||
+            return (node.transformFlags & 64 /* ES2015 */) !== 0 ||
                 node.kind === 219 /* LabeledStatement */ ||
                 (ts.isIterationStatement(node, /*lookInLabeledStatements*/ false) && shouldConvertIterationStatementBody(node));
         }
@@ -48973,7 +49226,7 @@ var ts;
             else if (shouldCheckNode(node)) {
                 return visitJavaScript(node);
             }
-            else if (node.transformFlags & 2048 /* ContainsES2015 */ || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
+            else if (node.transformFlags & 128 /* ContainsES2015 */ || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
                 // we want to dive in this branch either if node has children with ES2015 specific syntax
                 // or we are inside constructor that captures result of the super call so all returns without expression should be
                 // rewritten. Note: we skip expressions since returns should never appear there
@@ -49076,6 +49329,8 @@ var ts;
                     return visitTemplateExpression(node);
                 case 195 /* YieldExpression */:
                     return visitYieldExpression(node);
+                case 196 /* SpreadElement */:
+                    return visitSpreadElement(node);
                 case 96 /* SuperKeyword */:
                     return visitSuperKeyword();
                 case 195 /* YieldExpression */:
@@ -49083,8 +49338,6 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
                 case 149 /* MethodDeclaration */:
                     return visitMethodDeclaration(node);
-                case 261 /* SourceFile */:
-                    return visitSourceFileNode(node);
                 case 205 /* VariableStatement */:
                     return visitVariableStatement(node);
                 default:
@@ -49092,40 +49345,14 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            if (currentNode) {
-                if (ts.isBlockScope(currentNode, currentParent)) {
-                    enclosingBlockScopeContainer = currentNode;
-                    enclosingBlockScopeContainerParent = currentParent;
-                }
-                if (ts.isFunctionLike(currentNode)) {
-                    enclosingFunction = currentNode;
-                    if (currentNode.kind !== 185 /* ArrowFunction */) {
-                        enclosingNonArrowFunction = currentNode;
-                        if (!(ts.getEmitFlags(currentNode) & 2097152 /* AsyncFunctionBody */)) {
-                            enclosingNonAsyncFunctionBody = currentNode;
-                        }
-                    }
-                }
-                // keep track of the enclosing variable statement when in the context of
-                // variable statements, variable declarations, binding elements, and binding
-                // patterns.
-                switch (currentNode.kind) {
-                    case 205 /* VariableStatement */:
-                        enclosingVariableStatement = currentNode;
-                        break;
-                    case 224 /* VariableDeclarationList */:
-                    case 223 /* VariableDeclaration */:
-                    case 174 /* BindingElement */:
-                    case 172 /* ObjectBindingPattern */:
-                    case 173 /* ArrayBindingPattern */:
-                        break;
-                    default:
-                        enclosingVariableStatement = undefined;
-                }
-            }
-            currentParent = currentNode;
-            currentNode = node;
+        function visitSourceFile(node) {
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ false, visitor);
+            addCaptureThisForNodeIfNeeded(statements, node);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            ts.addRange(statements, endLexicalEnvironment());
+            return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
         }
         function visitSwitchStatement(node) {
             ts.Debug.assert(convertedLoopState !== undefined);
@@ -49250,10 +49477,10 @@ var ts;
                 statements.push(exportStatement);
             }
             var emitFlags = ts.getEmitFlags(node);
-            if ((emitFlags & 33554432 /* HasEndOfDeclarationMarker */) === 0) {
+            if ((emitFlags & 2097152 /* HasEndOfDeclarationMarker */) === 0) {
                 // Add a DeclarationMarker as a marker for the end of the declaration
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(statement, emitFlags | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(statement, emitFlags | 2097152 /* HasEndOfDeclarationMarker */);
             }
             return ts.singleOrMany(statements);
         }
@@ -49315,17 +49542,17 @@ var ts;
             // To preserve the behavior of the old emitter, we explicitly indent
             // the body of the function here if it was requested in an earlier
             // transformation.
-            if (ts.getEmitFlags(node) & 524288 /* Indented */) {
-                ts.setEmitFlags(classFunction, 524288 /* Indented */);
+            if (ts.getEmitFlags(node) & 32768 /* Indented */) {
+                ts.setEmitFlags(classFunction, 32768 /* Indented */);
             }
             // "inner" and "outer" below are added purely to preserve source map locations from
             // the old emitter
             var inner = ts.createPartiallyEmittedExpression(classFunction);
             inner.end = node.end;
-            ts.setEmitFlags(inner, 49152 /* NoComments */);
+            ts.setEmitFlags(inner, 1536 /* NoComments */);
             var outer = ts.createPartiallyEmittedExpression(inner);
             outer.end = ts.skipTrivia(currentText, node.pos);
-            ts.setEmitFlags(outer, 49152 /* NoComments */);
+            ts.setEmitFlags(outer, 1536 /* NoComments */);
             return ts.createParen(ts.createCall(outer, 
             /*typeArguments*/ undefined, extendsClauseElement
                 ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
@@ -49350,14 +49577,14 @@ var ts;
             // emit with the original emitter.
             var outer = ts.createPartiallyEmittedExpression(localName);
             outer.end = closingBraceLocation.end;
-            ts.setEmitFlags(outer, 49152 /* NoComments */);
+            ts.setEmitFlags(outer, 1536 /* NoComments */);
             var statement = ts.createReturn(outer);
             statement.pos = closingBraceLocation.pos;
-            ts.setEmitFlags(statement, 49152 /* NoComments */ | 12288 /* NoTokenSourceMaps */);
+            ts.setEmitFlags(statement, 1536 /* NoComments */ | 384 /* NoTokenSourceMaps */);
             statements.push(statement);
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, /*location*/ node.members), /*location*/ undefined, /*multiLine*/ true);
-            ts.setEmitFlags(block, 49152 /* NoComments */);
+            ts.setEmitFlags(block, 1536 /* NoComments */);
             return block;
         }
         /**
@@ -49369,7 +49596,7 @@ var ts;
          */
         function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
             if (extendsClauseElement) {
-                statements.push(ts.createStatement(ts.createExtendsHelper(currentSourceFile.externalHelpersModuleName, ts.getLocalName(node)), 
+                statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), 
                 /*location*/ extendsClauseElement));
             }
         }
@@ -49391,7 +49618,7 @@ var ts;
             /*type*/ undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), 
             /*location*/ constructor || node);
             if (extendsClauseElement) {
-                ts.setEmitFlags(constructorFunction, 256 /* CapturesThis */);
+                ts.setEmitFlags(constructorFunction, 8 /* CapturesThis */);
             }
             statements.push(constructorFunction);
         }
@@ -49408,10 +49635,8 @@ var ts;
             // `super` call.
             // If this is the case, we do not include the synthetic `...args` parameter and
             // will instead use the `arguments` object in ES5/3.
-            if (constructor && !hasSynthesizedSuper) {
-                return ts.visitNodes(constructor.parameters, visitor, ts.isParameter);
-            }
-            return [];
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
+                || [];
         }
         /**
          * Transforms the body of a constructor declaration of a class.
@@ -49424,21 +49649,21 @@ var ts;
          */
         function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
             var statements = [];
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = -1;
             if (hasSynthesizedSuper) {
                 // If a super call has already been synthesized,
                 // we're going to assume that we should just transform everything after that.
                 // The assumption is that no prior step in the pipeline has added any prologue directives.
-                statementOffset = 1;
+                statementOffset = 0;
             }
             else if (constructor) {
                 // Otherwise, try to emit all potential prologue directives first.
                 statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, /*ensureUseStrict*/ false, visitor);
             }
             if (constructor) {
-                ts.addDefaultValueAssignmentsIfNeeded(statements, constructor, visitor, /*convertObjectRest*/ false);
-                ts.addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+                addDefaultValueAssignmentsIfNeeded(statements, constructor);
+                addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
                 ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
             }
             var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, !!extendsClauseElement, hasSynthesizedSuper, statementOffset);
@@ -49466,7 +49691,7 @@ var ts;
             /*location*/ constructor ? constructor.body : node, 
             /*multiLine*/ true);
             if (!constructor) {
-                ts.setEmitFlags(block, 49152 /* NoComments */);
+                ts.setEmitFlags(block, 1536 /* NoComments */);
             }
             return block;
         }
@@ -49504,7 +49729,7 @@ var ts;
             // If this isn't a derived class, just capture 'this' for arrow functions if necessary.
             if (!hasExtendsClause) {
                 if (ctor) {
-                    ts.addCaptureThisForNodeIfNeeded(statements, ctor, enableSubstitutionsForCapturedThis);
+                    addCaptureThisForNodeIfNeeded(statements, ctor);
                 }
                 return 0 /* NoReplacement */;
             }
@@ -49519,7 +49744,7 @@ var ts;
             // for something like property initializers.
             // Create a captured '_this' variable and assume it will subsequently be used.
             if (hasSynthesizedSuper) {
-                ts.captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
+                captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
                 enableSubstitutionsForCapturedThis();
                 return 1 /* ReplaceSuperCapture */;
             }
@@ -49558,12 +49783,12 @@ var ts;
                     ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
                 }
                 // Shift comments from the original super call to the return statement.
-                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 49152 /* NoComments */)));
+                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536 /* NoComments */)));
                 statements.push(returnStatement);
                 return 2 /* ReplaceWithReturn */;
             }
             // Perform the capture.
-            ts.captureThisForNode(statements, ctor, superCallExpression, enableSubstitutionsForCapturedThis, firstStatement);
+            captureThisForNode(statements, ctor, superCallExpression, firstStatement);
             // If we're actually replacing the original statement, we need to signal this to the caller.
             if (superCallExpression) {
                 return 1 /* ReplaceSuperCapture */;
@@ -49572,7 +49797,7 @@ var ts;
         }
         function createDefaultSuperCallOrThis() {
             var actualThis = ts.createThis();
-            ts.setEmitFlags(actualThis, 128 /* NoSubstitution */);
+            ts.setEmitFlags(actualThis, 4 /* NoSubstitution */);
             var superCall = ts.createFunctionApply(ts.createIdentifier("_super"), actualThis, ts.createIdentifier("arguments"));
             return ts.createLogicalOr(superCall, actualThis);
         }
@@ -49616,6 +49841,160 @@ var ts;
             }
         }
         /**
+         * Gets a value indicating whether we need to add default value assignments for a
+         * function-like node.
+         *
+         * @param node A function-like node.
+         */
+        function shouldAddDefaultValueAssignments(node) {
+            return (node.transformFlags & 131072 /* ContainsDefaultValueAssignments */) !== 0;
+        }
+        /**
+         * Adds statements to the body of a function-like node if it contains parameters with
+         * binding patterns or initializers.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A function-like node.
+         */
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!shouldAddDefaultValueAssignments(node)) {
+                return;
+            }
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name_35 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                // A rest parameter cannot have a binding pattern or an initializer,
+                // so let's just ignore it.
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name_35)) {
+                    addDefaultValueAssignmentForBindingPattern(statements, parameter, name_35, initializer);
+                }
+                else if (initializer) {
+                    addDefaultValueAssignmentForInitializer(statements, parameter, name_35, initializer);
+                }
+            }
+        }
+        /**
+         * Adds statements to the body of a function-like node for parameters with binding patterns
+         *
+         * @param statements The statements for the new function body.
+         * @param parameter The parameter for the function.
+         * @param name The name of the parameter.
+         * @param initializer The initializer for the parameter.
+         */
+        function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            var temp = ts.getGeneratedNameForNode(parameter);
+            // In cases where a binding pattern is simply '[]' or '{}',
+            // we usually don't want to emit a var declaration; however, in the presence
+            // of an initializer, we must emit that expression to preserve side effects.
+            if (name.elements.length > 0) {
+                statements.push(ts.setEmitFlags(ts.createVariableStatement(
+                /*modifiers*/ undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0 /* All */, temp))), 524288 /* CustomPrologue */));
+            }
+            else if (initializer) {
+                statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288 /* CustomPrologue */));
+            }
+        }
+        /**
+         * Adds statements to the body of a function-like node for parameters with initializers.
+         *
+         * @param statements The statements for the new function body.
+         * @param parameter The parameter for the function.
+         * @param name The name of the parameter.
+         * @param initializer The initializer for the parameter.
+         */
+        function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
+                ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48 /* NoSourceMap */), ts.setEmitFlags(initializer, 48 /* NoSourceMap */ | ts.getEmitFlags(initializer)), 
+                /*location*/ parameter))
+            ], /*location*/ parameter), 1 /* SingleLine */ | 32 /* NoTrailingSourceMap */ | 384 /* NoTokenSourceMaps */), 
+            /*elseStatement*/ undefined, 
+            /*location*/ parameter);
+            statement.startsOnNewLine = true;
+            ts.setEmitFlags(statement, 384 /* NoTokenSourceMaps */ | 32 /* NoTrailingSourceMap */ | 524288 /* CustomPrologue */);
+            statements.push(statement);
+        }
+        /**
+         * Gets a value indicating whether we need to add statements to handle a rest parameter.
+         *
+         * @param node A ParameterDeclaration node.
+         * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
+         *                                          part of a constructor declaration with a
+         *                                          synthesized call to `super`
+         */
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return node && node.dotDotDotToken && node.name.kind === 70 /* Identifier */ && !inConstructorWithSynthesizedSuper;
+        }
+        /**
+         * Adds statements to the body of a function-like node if it contains a rest parameter.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A function-like node.
+         * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
+         *                                          part of a constructor declaration with a
+         *                                          synthesized call to `super`
+         */
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return;
+            }
+            // `declarationName` is the name of the local declaration for the parameter.
+            var declarationName = ts.getMutableClone(parameter.name);
+            ts.setEmitFlags(declarationName, 48 /* NoSourceMap */);
+            // `expressionName` is the name of the parameter used in expressions.
+            var expressionName = ts.getSynthesizedClone(parameter.name);
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            // var param = [];
+            statements.push(ts.setEmitFlags(ts.createVariableStatement(
+            /*modifiers*/ undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, 
+                /*type*/ undefined, ts.createArrayLiteral([]))
+            ]), 
+            /*location*/ parameter), 524288 /* CustomPrologue */));
+            // for (var _i = restIndex; _i < arguments.length; _i++) {
+            //   param[_i - restIndex] = arguments[_i];
+            // }
+            var forStatement = ts.createFor(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, /*type*/ undefined, ts.createLiteral(restIndex))
+            ], /*location*/ parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), 
+            /*location*/ parameter), ts.createPostfixIncrement(temp, /*location*/ parameter), ts.createBlock([
+                ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), 
+                /*location*/ parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 524288 /* CustomPrologue */);
+            ts.startOnNewLine(forStatement);
+            statements.push(forStatement);
+        }
+        /**
+         * Adds a statement to capture the `this` of a function declaration if it is needed.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A node.
+         */
+        function addCaptureThisForNodeIfNeeded(statements, node) {
+            if (node.transformFlags & 32768 /* ContainsCapturedLexicalThis */ && node.kind !== 185 /* ArrowFunction */) {
+                captureThisForNode(statements, node, ts.createThis());
+            }
+        }
+        function captureThisForNode(statements, node, initializer, originalStatement) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(
+            /*modifiers*/ undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("_this", 
+                /*type*/ undefined, initializer)
+            ]), originalStatement);
+            ts.setEmitFlags(captureThisStatement, 1536 /* NoComments */ | 524288 /* CustomPrologue */);
+            ts.setSourceMapRange(captureThisStatement, node);
+            statements.push(captureThisStatement);
+        }
+        /**
          * Adds statements to the class body function for a class to define the members of the
          * class.
          *
@@ -49665,18 +50044,18 @@ var ts;
         function transformClassMethodDeclarationToStatement(receiver, member) {
             var commentRange = ts.getCommentRange(member);
             var sourceMapRange = ts.getSourceMapRange(member);
-            var func = transformFunctionLikeToExpression(member, /*location*/ member, /*name*/ undefined);
-            ts.setEmitFlags(func, 49152 /* NoComments */);
-            ts.setSourceMapRange(func, sourceMapRange);
-            var statement = ts.createStatement(ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), 
-            /*location*/ member.name), func), 
+            var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), /*location*/ member.name);
+            var memberFunction = transformFunctionLikeToExpression(member, /*location*/ member, /*name*/ undefined);
+            ts.setEmitFlags(memberFunction, 1536 /* NoComments */);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), 
             /*location*/ member);
             ts.setOriginalNode(statement, member);
             ts.setCommentRange(statement, commentRange);
             // The location for the statement is used to emit comments only.
             // No source map should be emitted for this statement to align with the
             // old emitter.
-            ts.setEmitFlags(statement, 1536 /* NoSourceMap */);
+            ts.setEmitFlags(statement, 48 /* NoSourceMap */);
             return statement;
         }
         /**
@@ -49691,7 +50070,7 @@ var ts;
             // The location for the statement is used to emit source maps only.
             // No comments should be emitted for this statement to align with the
             // old emitter.
-            ts.setEmitFlags(statement, 49152 /* NoComments */);
+            ts.setEmitFlags(statement, 1536 /* NoComments */);
             return statement;
         }
         /**
@@ -49705,16 +50084,16 @@ var ts;
             // To align with source maps in the old emitter, the receiver and property name
             // arguments are both mapped contiguously to the accessor name.
             var target = ts.getMutableClone(receiver);
-            ts.setEmitFlags(target, 49152 /* NoComments */ | 1024 /* NoTrailingSourceMap */);
+            ts.setEmitFlags(target, 1536 /* NoComments */ | 32 /* NoTrailingSourceMap */);
             ts.setSourceMapRange(target, firstAccessor.name);
             var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
-            ts.setEmitFlags(propertyName, 49152 /* NoComments */ | 512 /* NoLeadingSourceMap */);
+            ts.setEmitFlags(propertyName, 1536 /* NoComments */ | 16 /* NoLeadingSourceMap */);
             ts.setSourceMapRange(propertyName, firstAccessor.name);
             var properties = [];
             if (getAccessor) {
                 var getterFunction = transformFunctionLikeToExpression(getAccessor, /*location*/ undefined, /*name*/ undefined);
                 ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
-                ts.setEmitFlags(getterFunction, 16384 /* NoLeadingComments */);
+                ts.setEmitFlags(getterFunction, 512 /* NoLeadingComments */);
                 var getter = ts.createPropertyAssignment("get", getterFunction);
                 ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
                 properties.push(getter);
@@ -49722,7 +50101,7 @@ var ts;
             if (setAccessor) {
                 var setterFunction = transformFunctionLikeToExpression(setAccessor, /*location*/ undefined, /*name*/ undefined);
                 ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
-                ts.setEmitFlags(setterFunction, 16384 /* NoLeadingComments */);
+                ts.setEmitFlags(setterFunction, 512 /* NoLeadingComments */);
                 var setter = ts.createPropertyAssignment("set", setterFunction);
                 ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
                 properties.push(setter);
@@ -49745,11 +50124,17 @@ var ts;
          * @param node An ArrowFunction node.
          */
         function visitArrowFunction(node) {
-            if (node.transformFlags & 262144 /* ContainsLexicalThis */) {
+            if (node.transformFlags & 16384 /* ContainsLexicalThis */) {
                 enableSubstitutionsForCapturedThis();
             }
-            var func = transformFunctionLikeToExpression(node, /*location*/ node, /*name*/ undefined);
-            ts.setEmitFlags(func, 256 /* CapturesThis */);
+            var func = ts.createFunctionExpression(
+            /*modifiers*/ undefined, 
+            /*asteriskToken*/ undefined, 
+            /*name*/ undefined, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node), node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8 /* CapturesThis */);
             return func;
         }
         /**
@@ -49758,7 +50143,12 @@ var ts;
          * @param node a FunctionExpression node.
          */
         function visitFunctionExpression(node) {
-            return transformFunctionLikeToExpression(node, /*location*/ node, node.name);
+            return ts.updateFunctionExpression(node, 
+            /*modifiers*/ undefined, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, node.transformFlags & 64 /* ES2015 */
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
          * Visits a FunctionDeclaration node.
@@ -49766,12 +50156,12 @@ var ts;
          * @param node a FunctionDeclaration node.
          */
         function visitFunctionDeclaration(node) {
-            return ts.setOriginalNode(ts.createFunctionDeclaration(
-            /*decorators*/ undefined, node.modifiers, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis), 
-            /*location*/ node), 
-            /*original*/ node);
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, node.transformFlags & 64 /* ES2015 */
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
          * Transforms a function-like node into a FunctionExpression.
@@ -49787,13 +50177,87 @@ var ts;
             }
             var expression = ts.setOriginalNode(ts.createFunctionExpression(
             /*modifiers*/ undefined, node.asteriskToken, name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, saveStateAndInvoke(node, function (node) { return ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis); }), location), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, saveStateAndInvoke(node, transformFunctionBody), location), 
             /*original*/ node);
             enclosingNonArrowFunction = savedContainingNonArrowFunction;
             return expression;
         }
         /**
+         * Transforms the body of a function-like node.
+         *
+         * @param node A function-like node.
+         */
+        function transformFunctionBody(node) {
+            var multiLine = false; // indicates whether the block *must* be emitted as multiple lines
+            var singleLine = false; // indicates whether the block *may* be emitted as a single line
+            var statementsLocation;
+            var closeBraceLocation;
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                // ensureUseStrict is false because no new prologue-directive should be added.
+                // addPrologueDirectives will simply put already-existing directives at the beginning of the target statement-array
+                statementOffset = ts.addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
+            }
+            addCaptureThisForNodeIfNeeded(statements, node);
+            addDefaultValueAssignmentsIfNeeded(statements, node);
+            addRestParameterIfNeeded(statements, node, /*inConstructorWithSynthesizedSuper*/ false);
+            // If we added any generated statements, this must be a multi-line block.
+            if (!multiLine && statements.length > 0) {
+                multiLine = true;
+            }
+            if (ts.isBlock(body)) {
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                // If the original body was a multi-line block, this must be a multi-line block.
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 185 /* ArrowFunction */);
+                // To align with the old emitter, we use a synthetic end position on the location
+                // for the statement list we synthesize when we down-level an arrow function with
+                // an expression function body. This prevents both comments and source maps from
+                // being emitted for the end position only.
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression, /*location*/ body);
+                ts.setEmitFlags(returnStatement, 384 /* NoTokenSourceMaps */ | 32 /* NoTrailingSourceMap */ | 1024 /* NoTrailingComments */);
+                statements.push(returnStatement);
+                // To align with the source map emit for the old emitter, we set a custom
+                // source map location for the close brace.
+                closeBraceLocation = body;
+            }
+            var lexicalEnvironment = context.endLexicalEnvironment();
+            ts.addRange(statements, lexicalEnvironment);
+            // If we added any final generated statements, this must be a multi-line block
+            if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
+                multiLine = true;
+            }
+            var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1 /* SingleLine */);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 17 /* CloseBraceToken */, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
+        /**
          * Visits an ExpressionStatement that contains a destructuring assignment.
          *
          * @param node An ExpressionStatement node.
@@ -49817,14 +50281,12 @@ var ts;
          */
         function visitParenthesizedExpression(node, needsDestructuringValue) {
             // If we are here it is most likely because our expression is a destructuring assignment.
-            if (needsDestructuringValue) {
+            if (!needsDestructuringValue) {
                 switch (node.expression.kind) {
                     case 183 /* ParenthesizedExpression */:
-                        return ts.createParen(visitParenthesizedExpression(node.expression, /*needsDestructuringValue*/ true), 
-                        /*location*/ node);
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, /*needsDestructuringValue*/ false));
                     case 192 /* BinaryExpression */:
-                        return ts.createParen(visitBinaryExpression(node.expression, /*needsDestructuringValue*/ true), 
-                        /*location*/ node);
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, /*needsDestructuringValue*/ false));
                 }
             }
             return ts.visitEachChild(node, visitor, context);
@@ -49838,8 +50300,9 @@ var ts;
          */
         function visitBinaryExpression(node, needsDestructuringValue) {
             // If we are here it is because this is a destructuring assignment.
-            ts.Debug.assert(ts.isDestructuringAssignment(node));
-            return ts.flattenDestructuringAssignment(context, node, needsDestructuringValue, hoistVariableDeclaration, visitor);
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0 /* All */, needsDestructuringValue);
+            }
         }
         function visitVariableStatement(node) {
             if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3 /* BlockScoped */) == 0) {
@@ -49851,7 +50314,7 @@ var ts;
                     if (decl.initializer) {
                         var assignment = void 0;
                         if (ts.isBindingPattern(decl.name)) {
-                            assignment = ts.flattenVariableDestructuringToExpression(decl, hoistVariableDeclaration, /*createAssignmentCallback*/ undefined, visitor);
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0 /* All */);
                         }
                         else {
                             assignment = ts.createBinary(decl.name, 57 /* EqualsToken */, ts.visitNode(decl.initializer, visitor, ts.isExpression));
@@ -49884,7 +50347,7 @@ var ts;
             var declarationList = ts.createVariableDeclarationList(declarations, /*location*/ node);
             ts.setOriginalNode(declarationList, node);
             ts.setCommentRange(declarationList, node);
-            if (node.transformFlags & 67108864 /* ContainsBindingPattern */
+            if (node.transformFlags & 8388608 /* ContainsBindingPattern */
                 && (ts.isBindingPattern(node.declarations[0].name)
                     || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
                 // If the first or last declaration is a binding pattern, we need to modify
@@ -49972,9 +50435,9 @@ var ts;
                 return visitVariableDeclaration(node);
             }
             if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
-                var clone_5 = ts.getMutableClone(node);
-                clone_5.initializer = ts.createVoidZero();
-                return clone_5;
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -49986,9 +50449,10 @@ var ts;
         function visitVariableDeclaration(node) {
             // If we are here it is because the name contains a binding pattern.
             if (ts.isBindingPattern(node.name)) {
-                var recordTempVariablesInLine = !enclosingVariableStatement
-                    || !ts.hasModifier(enclosingVariableStatement, 1 /* Export */);
-                return ts.flattenVariableDestructuring(node, /*value*/ undefined, visitor, recordTempVariablesInLine ? undefined : hoistVariableDeclaration);
+                var hoistTempVariables = enclosingVariableStatement
+                    && ts.hasModifier(enclosingVariableStatement, 1 /* Export */);
+                return ts.flattenDestructuringBinding(node, visitor, context, 0 /* All */, 
+                /*value*/ undefined, hoistTempVariables);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -50032,7 +50496,118 @@ var ts;
             return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
         }
         function convertForOfToFor(node, convertedLoopBodyStatements) {
-            return ts.convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, /*transformRest*/ false);
+            // The following ES6 code:
+            //
+            //    for (let v of expr) { }
+            //
+            // should be emitted as
+            //
+            //    for (var _i = 0, _a = expr; _i < _a.length; _i++) {
+            //        var v = _a[_i];
+            //    }
+            //
+            // where _a and _i are temps emitted to capture the RHS and the counter,
+            // respectively.
+            // When the left hand side is an expression instead of a let declaration,
+            // the "let v" is not emitted.
+            // When the left hand side is a let/const, the v is renamed if there is
+            // another v in scope.
+            // Note that all assignments to the LHS are emitted in the body, including
+            // all destructuring.
+            // Note also that because an extra statement is needed to assign to the LHS,
+            // for-of bodies are always emitted as blocks.
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var initializer = node.initializer;
+            var statements = [];
+            // In the case where the user wrote an identifier as the RHS, like this:
+            //
+            //     for (let v of arr) { }
+            //
+            // we don't want to emit a temporary variable for the RHS, just use it directly.
+            var counter = ts.createLoopVariable();
+            var rhsReference = expression.kind === 70 /* Identifier */
+                ? ts.createUniqueName(expression.text)
+                : ts.createTempVariable(/*recordTempVariable*/ undefined);
+            var elementAccess = ts.createElementAccess(rhsReference, counter);
+            // Initialize LHS
+            // var v = _a[_i];
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (initializer.flags & 3 /* BlockScoped */) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    // This works whether the declaration is a var, let, or const.
+                    // It will use rhsIterationValue _a[_i] as the initializer.
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0 /* All */, elementAccess);
+                    var declarationList = ts.createVariableDeclarationList(declarations, /*location*/ initializer);
+                    ts.setOriginalNode(declarationList, initializer);
+                    // Adjust the source map range for the first declaration to align with the old
+                    // emitter.
+                    var firstDeclaration = declarations[0];
+                    var lastDeclaration = ts.lastOrUndefined(declarations);
+                    ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
+                    statements.push(ts.createVariableStatement(
+                    /*modifiers*/ undefined, declarationList));
+                }
+                else {
+                    // The following call does not include the initializer, so we have
+                    // to emit it separately.
+                    statements.push(ts.createVariableStatement(
+                    /*modifiers*/ undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(/*recordTempVariable*/ undefined), 
+                        /*type*/ undefined, ts.createElementAccess(rhsReference, counter))
+                    ], /*location*/ ts.moveRangePos(initializer, -1)), initializer), 
+                    /*location*/ ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                // Initializer is an expression. Emit the expression in the body, so that it's
+                // evaluated on every iteration.
+                var assignment = ts.createAssignment(initializer, elementAccess);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    // This is a destructuring pattern, so we flatten the destructuring instead.
+                    statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0 /* All */)));
+                }
+                else {
+                    // Currently there is not way to check that assignment is binary expression of destructing assignment
+                    // so we have to cast never type to binaryExpression
+                    assignment.end = initializer.end;
+                    statements.push(ts.createStatement(assignment, /*location*/ ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            var bodyLocation;
+            var statementsLocation;
+            if (convertedLoopBodyStatements) {
+                ts.addRange(statements, convertedLoopBodyStatements);
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                if (ts.isBlock(statement)) {
+                    ts.addRange(statements, statement.statements);
+                    bodyLocation = statement;
+                    statementsLocation = statement.statements;
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+            // The old emitter does not emit source maps for the expression
+            ts.setEmitFlags(expression, 48 /* NoSourceMap */ | ts.getEmitFlags(expression));
+            // The old emitter does not emit source maps for the block.
+            // We add the location to preserve comments.
+            var body = ts.createBlock(ts.createNodeArray(statements, /*location*/ statementsLocation), 
+            /*location*/ bodyLocation);
+            ts.setEmitFlags(body, 48 /* NoSourceMap */ | 384 /* NoTokenSourceMaps */);
+            var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(counter, /*type*/ undefined, ts.createLiteral(0), /*location*/ ts.moveRangePos(node.expression, -1)),
+                ts.createVariableDeclaration(rhsReference, /*type*/ undefined, expression, /*location*/ node.expression)
+            ], /*location*/ node.expression), 1048576 /* NoHoisting */), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), 
+            /*location*/ node.expression), ts.createPostfixIncrement(counter, /*location*/ node.expression), body, 
+            /*location*/ node);
+            // Disable trailing source maps for the OpenParenToken to align source map emit with the old emitter.
+            ts.setEmitFlags(forStatement, 256 /* NoTokenTrailingSourceMaps */);
+            return forStatement;
         }
         /**
          * Visits an ObjectLiteralExpression with computed propety names.
@@ -50048,7 +50623,7 @@ var ts;
             var numInitialProperties = numProperties;
             for (var i = 0; i < numProperties; i++) {
                 var property = properties[i];
-                if (property.transformFlags & 134217728 /* ContainsYield */
+                if (property.transformFlags & 16777216 /* ContainsYield */
                     || property.name.kind === 142 /* ComputedPropertyName */) {
                     numInitialProperties = i;
                     break;
@@ -50061,7 +50636,7 @@ var ts;
             // Write out the first non-computed properties, then emit the rest through indexing on the temp variable.
             var expressions = [];
             var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), 
-            /*location*/ undefined, node.multiLine), 524288 /* Indented */));
+            /*location*/ undefined, node.multiLine), 32768 /* Indented */));
             if (node.multiLine) {
                 assignment.startsOnNewLine = true;
             }
@@ -50159,22 +50734,22 @@ var ts;
             var currentState = convertedLoopState;
             convertedLoopState = outerConvertedLoopState;
             if (loopOutParameters.length) {
-                var statements_3 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
-                copyOutParameters(loopOutParameters, 1 /* ToOutParameter */, statements_3);
-                loopBody = ts.createBlock(statements_3, /*location*/ undefined, /*multiline*/ true);
+                var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
+                copyOutParameters(loopOutParameters, 1 /* ToOutParameter */, statements_4);
+                loopBody = ts.createBlock(statements_4, /*location*/ undefined, /*multiline*/ true);
             }
             if (!ts.isBlock(loopBody)) {
                 loopBody = ts.createBlock([loopBody], /*location*/ undefined, /*multiline*/ true);
             }
             var isAsyncBlockContainingAwait = enclosingNonArrowFunction
-                && (ts.getEmitFlags(enclosingNonArrowFunction) & 2097152 /* AsyncFunctionBody */) !== 0
-                && (node.statement.transformFlags & 134217728 /* ContainsYield */) !== 0;
+                && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072 /* AsyncFunctionBody */) !== 0
+                && (node.statement.transformFlags & 16777216 /* ContainsYield */) !== 0;
             var loopBodyFlags = 0;
             if (currentState.containsLexicalThis) {
-                loopBodyFlags |= 256 /* CapturesThis */;
+                loopBodyFlags |= 8 /* CapturesThis */;
             }
             if (isAsyncBlockContainingAwait) {
-                loopBodyFlags |= 2097152 /* AsyncFunctionBody */;
+                loopBodyFlags |= 131072 /* AsyncFunctionBody */;
             }
             var convertedLoopVariable = ts.createVariableStatement(
             /*modifiers*/ undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
@@ -50184,7 +50759,7 @@ var ts;
                 /*name*/ undefined, 
                 /*typeParameters*/ undefined, loopParameters, 
                 /*type*/ undefined, loopBody), loopBodyFlags))
-            ]), 16777216 /* NoHoisting */));
+            ]), 1048576 /* NoHoisting */));
             var statements = [convertedLoopVariable];
             var extraVariableDeclarations;
             // propagate state from the inner loop to the outer loop if necessary
@@ -50465,7 +51040,7 @@ var ts;
             ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
             var temp = ts.createTempVariable(undefined);
             var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
-            var vars = ts.flattenVariableDestructuring(node.variableDeclaration, temp, visitor);
+            var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0 /* All */, temp);
             var list = ts.createVariableDeclarationList(vars, /*location*/ node.variableDeclaration, /*flags*/ node.variableDeclaration.flags);
             var destructure = ts.createVariableStatement(undefined, list);
             return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
@@ -50486,7 +51061,7 @@ var ts;
             // Methods with computed property names are handled in visitObjectLiteralExpression.
             ts.Debug.assert(!ts.isComputedPropertyName(node.name));
             var functionExpression = transformFunctionLikeToExpression(node, /*location*/ ts.moveRangePos(node, -1), /*name*/ undefined);
-            ts.setEmitFlags(functionExpression, 16384 /* NoLeadingComments */ | ts.getEmitFlags(functionExpression));
+            ts.setEmitFlags(functionExpression, 512 /* NoLeadingComments */ | ts.getEmitFlags(functionExpression));
             return ts.createPropertyAssignment(node.name, functionExpression, 
             /*location*/ node);
         }
@@ -50533,10 +51108,10 @@ var ts;
             // because we contain a SpreadElementExpression.
             var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             if (node.expression.kind === 96 /* SuperKeyword */) {
-                ts.setEmitFlags(thisArg, 128 /* NoSubstitution */);
+                ts.setEmitFlags(thisArg, 4 /* NoSubstitution */);
             }
             var resultingCall;
-            if (node.transformFlags & 8388608 /* ContainsSpreadExpression */) {
+            if (node.transformFlags & 524288 /* ContainsSpread */) {
                 // [source]
                 //      f(...a, b)
                 //      x.m(...a, b)
@@ -50567,7 +51142,7 @@ var ts;
             }
             if (node.expression.kind === 96 /* SuperKeyword */) {
                 var actualThis = ts.createThis();
-                ts.setEmitFlags(actualThis, 128 /* NoSubstitution */);
+                ts.setEmitFlags(actualThis, 4 /* NoSubstitution */);
                 var initializer = ts.createLogicalOr(resultingCall, actualThis);
                 return assignToCapturedThis
                     ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
@@ -50582,7 +51157,7 @@ var ts;
          */
         function visitNewExpression(node) {
             // We are here because we contain a SpreadElementExpression.
-            ts.Debug.assert((node.transformFlags & 8388608 /* ContainsSpreadExpression */) !== 0);
+            ts.Debug.assert((node.transformFlags & 524288 /* ContainsSpread */) !== 0);
             // [source]
             //      new C(...a)
             //
@@ -50632,6 +51207,9 @@ var ts;
             return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, /*location*/ undefined, hasTrailingComma), visitor, ts.isExpression), 
             /*location*/ undefined, multiLine);
         }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
         /**
          * Transforms the expression of a SpreadExpression node.
          *
@@ -50798,18 +51376,6 @@ var ts;
                 ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
                 : ts.createIdentifier("_super");
         }
-        function visitSourceFileNode(node) {
-            var _a = ts.span(node.statements, ts.isPrologueDirective), prologue = _a[0], remaining = _a[1];
-            var statements = [];
-            startLexicalEnvironment();
-            ts.addRange(statements, prologue);
-            ts.addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-            ts.addRange(statements, ts.visitNodes(ts.createNodeArray(remaining), visitor, ts.isStatement));
-            ts.addRange(statements, endLexicalEnvironment());
-            var clone = ts.getMutableClone(node);
-            clone.statements = ts.createNodeArray(statements, /*location*/ node.statements);
-            return clone;
-        }
         /**
          * Called by the printer just before a node is printed.
          *
@@ -50935,7 +51501,7 @@ var ts;
         function substituteThisKeyword(node) {
             if (enabledSubstitutions & 1 /* CapturedThis */
                 && enclosingFunction
-                && ts.getEmitFlags(enclosingFunction) & 256 /* CapturesThis */) {
+                && ts.getEmitFlags(enclosingFunction) & 8 /* CapturesThis */) {
                 return ts.createIdentifier("_this", /*location*/ node);
             }
             return node;
@@ -50948,8 +51514,7 @@ var ts;
             if (!constructor || !hasExtendsClause) {
                 return false;
             }
-            var parameter = ts.singleOrUndefined(constructor.parameters);
-            if (!parameter || !ts.nodeIsSynthesized(parameter) || !parameter.dotDotDotToken) {
+            if (ts.some(constructor.parameters)) {
                 return false;
             }
             var statement = ts.firstOrUndefined(constructor.body.statements);
@@ -50969,10 +51534,24 @@ var ts;
                 return false;
             }
             var expression = callArgument.expression;
-            return ts.isIdentifier(expression) && expression === parameter.name;
+            return ts.isIdentifier(expression) && expression.text === "arguments";
         }
     }
     ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(extendsHelper);
+        return ts.createCall(ts.getHelperName("__extends"), 
+        /*typeArguments*/ undefined, [
+            name,
+            ts.createIdentifier("_super")
+        ]);
+    }
+    var extendsHelper = {
+        name: "typescript:extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
+    };
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
@@ -51154,7 +51733,7 @@ var ts;
         _a[7 /* Endfinally */] = "endfinally",
         _a));
     function transformGenerators(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var resolver = context.getEmitResolver();
@@ -51204,15 +51783,15 @@ var ts;
         var withBlockStack; // A stack containing `with` blocks.
         return transformSourceFile;
         function transformSourceFile(node) {
-            if (ts.isDeclarationFile(node)) {
+            if (ts.isDeclarationFile(node)
+                || (node.transformFlags & 512 /* ContainsGenerator */) === 0) {
                 return node;
             }
-            if (node.transformFlags & 8192 /* ContainsGenerator */) {
-                currentSourceFile = node;
-                node = ts.visitEachChild(node, visitor, context);
-                currentSourceFile = undefined;
-            }
-            return node;
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         /**
          * Visits a node.
@@ -51227,10 +51806,10 @@ var ts;
             else if (inGeneratorFunctionBody) {
                 return visitJavaScriptInGeneratorFunctionBody(node);
             }
-            else if (transformFlags & 4096 /* Generator */) {
+            else if (transformFlags & 256 /* Generator */) {
                 return visitGenerator(node);
             }
-            else if (transformFlags & 8192 /* ContainsGenerator */) {
+            else if (transformFlags & 512 /* ContainsGenerator */) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -51283,10 +51862,10 @@ var ts;
                 case 216 /* ReturnStatement */:
                     return visitReturnStatement(node);
                 default:
-                    if (node.transformFlags & 134217728 /* ContainsYield */) {
+                    if (node.transformFlags & 16777216 /* ContainsYield */) {
                         return visitJavaScriptContainingYield(node);
                     }
-                    else if (node.transformFlags & (8192 /* ContainsGenerator */ | 268435456 /* ContainsHoistedDeclarationOrCompletion */)) {
+                    else if (node.transformFlags & (512 /* ContainsGenerator */ | 33554432 /* ContainsHoistedDeclarationOrCompletion */)) {
                         return ts.visitEachChild(node, visitor, context);
                     }
                     else {
@@ -51348,12 +51927,11 @@ var ts;
          */
         function visitFunctionDeclaration(node) {
             // Currently, we only support generators that were originally async functions.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
                 node = ts.setOriginalNode(ts.createFunctionDeclaration(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, 
+                /*decorators*/ undefined, node.modifiers, 
                 /*asteriskToken*/ undefined, node.name, 
-                /*typeParameters*/ undefined, node.parameters, 
+                /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
                 /*type*/ undefined, transformGeneratorFunctionBody(node.body), 
                 /*location*/ node), node);
             }
@@ -51387,11 +51965,11 @@ var ts;
          */
         function visitFunctionExpression(node) {
             // Currently, we only support generators that were originally async functions.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
                 node = ts.setOriginalNode(ts.createFunctionExpression(
                 /*modifiers*/ undefined, 
                 /*asteriskToken*/ undefined, node.name, 
-                /*typeParameters*/ undefined, node.parameters, 
+                /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
                 /*type*/ undefined, transformGeneratorFunctionBody(node.body), 
                 /*location*/ node), node);
             }
@@ -51460,7 +52038,7 @@ var ts;
             operationLocations = undefined;
             state = ts.createTempVariable(/*recordTempVariable*/ undefined);
             // Build the generator
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = ts.addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
             transformAndEmitStatements(body.statements, statementOffset);
             var buildResult = build();
@@ -51491,13 +52069,13 @@ var ts;
          * @param node The node to visit.
          */
         function visitVariableStatement(node) {
-            if (node.transformFlags & 134217728 /* ContainsYield */) {
+            if (node.transformFlags & 16777216 /* ContainsYield */) {
                 transformAndEmitVariableDeclarationList(node.declarationList);
                 return undefined;
             }
             else {
                 // Do not hoist custom prologues.
-                if (ts.getEmitFlags(node) & 8388608 /* CustomPrologue */) {
+                if (ts.getEmitFlags(node) & 524288 /* CustomPrologue */) {
                     return node;
                 }
                 for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
@@ -51614,10 +52192,10 @@ var ts;
                 //      _a = a();
                 //  .yield resumeLabel
                 //      _a + %sent% + c()
-                var clone_6 = ts.getMutableClone(node);
-                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
-                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
-                return clone_6;
+                var clone_4 = ts.getMutableClone(node);
+                clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_4;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -51770,7 +52348,7 @@ var ts;
          * @param node The node to visit.
          */
         function visitArrayLiteralExpression(node) {
-            return visitElements(node.elements, node.multiLine);
+            return visitElements(node.elements, /*leadingElement*/ undefined, /*location*/ undefined, node.multiLine);
         }
         /**
          * Visits an array of expressions containing one or more YieldExpression nodes
@@ -51779,7 +52357,7 @@ var ts;
          * @param elements The elements to visit.
          * @param multiLine Whether array literals created should be emitted on multiple lines.
          */
-        function visitElements(elements, _multiLine) {
+        function visitElements(elements, leadingElement, location, multiLine) {
             // [source]
             //      ar = [1, yield, 2];
             //
@@ -51793,19 +52371,24 @@ var ts;
             var temp = declareLocal();
             var hasAssignedTemp = false;
             if (numInitialElements > 0) {
-                emitAssignment(temp, ts.createArrayLiteral(ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements)));
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? [leadingElement].concat(initialElements) : initialElements));
+                leadingElement = undefined;
                 hasAssignedTemp = true;
             }
             var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
             return hasAssignedTemp
-                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                : ts.createArrayLiteral(expressions);
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, /*location*/ undefined, multiLine)])
+                : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
             function reduceElement(expressions, element) {
                 if (containsYield(element) && expressions.length > 0) {
                     emitAssignment(temp, hasAssignedTemp
-                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                        : ts.createArrayLiteral(expressions));
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, /*location*/ undefined, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, 
+                        /*location*/ undefined, multiLine));
                     hasAssignedTemp = true;
+                    leadingElement = undefined;
                     expressions = [];
                 }
                 expressions.push(ts.visitNode(element, visitor, ts.isExpression));
@@ -51871,10 +52454,10 @@ var ts;
                 //  .yield resumeLabel
                 //  .mark resumeLabel
                 //      a = _a[%sent%]
-                var clone_7 = ts.getMutableClone(node);
-                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
-                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
-                return clone_7;
+                var clone_5 = ts.getMutableClone(node);
+                clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_5;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -51909,7 +52492,8 @@ var ts;
                 //  .mark resumeLabel
                 //      new (_b.apply(_a, _c.concat([%sent%, 2])));
                 var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
-                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments)), 
+                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, 
+                /*leadingElement*/ ts.createVoidZero())), 
                 /*typeArguments*/ undefined, [], 
                 /*location*/ node), node);
             }
@@ -52532,7 +53116,7 @@ var ts;
             }
         }
         function containsYield(node) {
-            return node && (node.transformFlags & 134217728 /* ContainsYield */) !== 0;
+            return node && (node.transformFlags & 16777216 /* ContainsYield */) !== 0;
         }
         function countInitialNodesWithoutYield(nodes) {
             var numNodes = nodes.length;
@@ -52562,12 +53146,12 @@ var ts;
                 if (ts.isIdentifier(original) && original.parent) {
                     var declaration = resolver.getReferencedValueDeclaration(original);
                     if (declaration) {
-                        var name_35 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
-                        if (name_35) {
-                            var clone_8 = ts.getMutableClone(name_35);
-                            ts.setSourceMapRange(clone_8, node);
-                            ts.setCommentRange(clone_8, node);
-                            return clone_8;
+                        var name_36 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
+                        if (name_36) {
+                            var clone_6 = ts.getMutableClone(name_36);
+                            ts.setSourceMapRange(clone_6, node);
+                            ts.setCommentRange(clone_6, node);
+                            return clone_6;
                         }
                     }
                 }
@@ -53153,18 +53737,14 @@ var ts;
             currentExceptionBlock = undefined;
             withBlockStack = undefined;
             var buildResult = buildStatements();
-            return ts.createCall(ts.createHelperName(currentSourceFile.externalHelpersModuleName, "__generator"), 
-            /*typeArguments*/ undefined, [
-                ts.createThis(),
-                ts.setEmitFlags(ts.createFunctionExpression(
-                /*modifiers*/ undefined, 
-                /*asteriskToken*/ undefined, 
-                /*name*/ undefined, 
-                /*typeParameters*/ undefined, [ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, state)], 
-                /*type*/ undefined, ts.createBlock(buildResult, 
-                /*location*/ undefined, 
-                /*multiLine*/ buildResult.length > 0)), 4194304 /* ReuseTempVariableScope */)
-            ]);
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(
+            /*modifiers*/ undefined, 
+            /*asteriskToken*/ undefined, 
+            /*name*/ undefined, 
+            /*typeParameters*/ undefined, [ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, state)], 
+            /*type*/ undefined, ts.createBlock(buildResult, 
+            /*location*/ undefined, 
+            /*multiLine*/ buildResult.length > 0)), 262144 /* ReuseTempVariableScope */));
         }
         /**
          * Builds the statements for the generator function body.
@@ -53535,6 +54115,76 @@ var ts;
         }
     }
     ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(generatorHelper);
+        return ts.createCall(ts.getHelperName("__generator"), 
+        /*typeArguments*/ undefined, [ts.createThis(), body]);
+    }
+    // The __generator helper is used by down-level transformations to emulate the runtime
+    // semantics of an ES2015 generator function. When called, this helper returns an
+    // object that implements the Iterator protocol, in that it has `next`, `return`, and
+    // `throw` methods that step through the generator when invoked.
+    //
+    // parameters:
+    //  thisArg  The value to use as the `this` binding for the transformed generator body.
+    //  body     A function that acts as the transformed generator body.
+    //
+    // variables:
+    //  _       Persistent state for the generator that is shared between the helper and the
+    //          generator body. The state object has the following members:
+    //            sent() - A method that returns or throws the current completion value.
+    //            label  - The next point at which to resume evaluation of the generator body.
+    //            trys   - A stack of protected regions (try/catch/finally blocks).
+    //            ops    - A stack of pending instructions when inside of a finally block.
+    //  f       A value indicating whether the generator is executing.
+    //  y       An iterator to delegate for a yield*.
+    //  t       A temporary variable that holds one of the following values (note that these
+    //          cases do not overlap):
+    //          - The completion value when resuming from a `yield` or `yield*`.
+    //          - The error value for a catch block.
+    //          - The current protected region (array of try/catch/finally/end labels).
+    //          - The verb (`next`, `throw`, or `return` method) to delegate to the expression
+    //            of a `yield*`.
+    //          - The result of evaluating the verb delegated to the expression of a `yield*`.
+    //
+    // functions:
+    //  verb(n)     Creates a bound callback to the `step` function for opcode `n`.
+    //  step(op)    Evaluates opcodes in a generator body until execution is suspended or
+    //              completed.
+    //
+    // The __generator helper understands a limited set of instructions:
+    //  0: next(value?)     - Start or resume the generator with the specified value.
+    //  1: throw(error)     - Resume the generator with an exception. If the generator is
+    //                        suspended inside of one or more protected regions, evaluates
+    //                        any intervening finally blocks between the current label and
+    //                        the nearest catch block or function boundary. If uncaught, the
+    //                        exception is thrown to the caller.
+    //  2: return(value?)   - Resume the generator as if with a return. If the generator is
+    //                        suspended inside of one or more protected regions, evaluates any
+    //                        intervening finally blocks.
+    //  3: break(label)     - Jump to the specified label. If the label is outside of the
+    //                        current protected region, evaluates any intervening finally
+    //                        blocks.
+    //  4: yield(value?)    - Yield execution to the caller with an optional value. When
+    //                        resumed, the generator will continue at the next label.
+    //  5: yield*(value)    - Delegates evaluation to the supplied iterator. When
+    //                        delegation completes, the generator will continue at the next
+    //                        label.
+    //  6: catch(error)     - Handles an exception thrown from within the generator body. If
+    //                        the current label is inside of one or more protected regions,
+    //                        evaluates any intervening finally blocks between the current
+    //                        label and the nearest catch block or function boundary. If
+    //                        uncaught, the exception is thrown to the caller.
+    //  7: endfinally       - Ends a finally block, resuming the last instruction prior to
+    //                        entering a finally block.
+    //
+    // For examples of how these are used, see the comments in ./transformers/generators.ts
+    var generatorHelper = {
+        name: "typescript:generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
     var _a;
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
@@ -53623,13 +54273,32 @@ var ts;
 (function (ts) {
     function transformES2015Module(context) {
         var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(261 /* SourceFile */);
+        context.enableSubstitution(70 /* Identifier */);
+        var currentSourceFile;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
             if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
-                return ts.visitEachChild(node, visitor, context);
+                var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
+                if (externalHelpersModuleName) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologueDirectives(statements, node.statements);
+                    ts.append(statements, ts.createImportDeclaration(
+                    /*decorators*/ undefined, 
+                    /*modifiers*/ undefined, ts.createImportClause(/*name*/ undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
             }
             return node;
         }
@@ -53647,6 +54316,51 @@ var ts;
             // Elide `export=` as it is not legal with --module ES6
             return node.isExportEquals ? undefined : node;
         }
+        //
+        // Emit Notification
+        //
+        /**
+         * Hook for node emit.
+         *
+         * @param emitContext A context hint for the emitter.
+         * @param node The node to emit.
+         * @param emit A callback used to emit the node in the printer.
+         */
+        function onEmitNode(emitContext, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSourceFile = undefined;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
+            }
+        }
+        //
+        // Substitutions
+        //
+        /**
+         * Hooks node substitutions.
+         *
+         * @param emitContext A context hint for the emitter.
+         * @param node The node to substitute.
+         */
+        function onSubstituteNode(emitContext, node) {
+            node = previousOnSubstituteNode(emitContext, node);
+            if (ts.isIdentifier(node) && emitContext === 1 /* Expression */) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+            }
+            return node;
+        }
     }
     ts.transformES2015Module = transformES2015Module;
 })(ts || (ts = {}));
@@ -53708,13 +54422,14 @@ var ts;
             // The only exception in this rule is postfix unary operators,
             // see comment to 'substitutePostfixUnaryExpression' for more details
             // Collect information about the external module and dependency groups.
-            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver);
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             // Make sure that the name of the 'exports' function does not conflict with
             // existing identifiers.
             exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
             contextObject = ts.createUniqueName("context");
             // Add the body of the module.
             var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
             var moduleBodyFunction = ts.createFunctionExpression(
             /*modifiers*/ undefined, 
             /*asteriskToken*/ undefined, 
@@ -53723,7 +54438,7 @@ var ts;
                 ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, exportFunction),
                 ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, contextObject)
             ], 
-            /*type*/ undefined, createSystemModuleBody(node, dependencyGroups));
+            /*type*/ undefined, moduleBodyBlock);
             // Write the call to `System.register`
             // Clear the emit-helpers flag for later passes since we'll have already used it in the module body
             // So the helper will be emit at the correct position instead of at the top of the source-file
@@ -53735,7 +54450,9 @@ var ts;
                     ? [moduleName, dependencies, moduleBodyFunction]
                     : [dependencies, moduleBodyFunction]))
             ], node.statements));
-            ts.setEmitFlags(updated, ts.getEmitFlags(node) & ~1 /* EmitEmitHelpers */);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
             if (noSubstitution) {
                 noSubstitutionMap[id] = noSubstitution;
                 noSubstitution = undefined;
@@ -53835,6 +54552,8 @@ var ts;
                 ts.createVariableDeclaration("__moduleName", 
                 /*type*/ undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
             ])));
+            // Visit the synthetic external helpers import declaration if present
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true);
             // Visit the statements of the source file, emitting any transformations into
             // the `executeStatements` array. We do this *before* we fill the `setters` array
             // as we both emit transformations as well as aggregate some data used when creating
@@ -53861,9 +54580,7 @@ var ts;
                 /*multiLine*/ true)))
             ]), 
             /*multiLine*/ true)));
-            var body = ts.createBlock(statements, /*location*/ undefined, /*multiLine*/ true);
-            ts.setEmitFlags(body, 1 /* EmitEmitHelpers */);
-            return body;
+            return ts.createBlock(statements, /*location*/ undefined, /*multiLine*/ true);
         }
         /**
          * Adds an exportStar function to a statement list if it is needed for the file.
@@ -53948,7 +54665,8 @@ var ts;
             var exports = ts.createIdentifier("exports");
             var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
             if (localNames) {
-                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createHasOwnProperty(localNames, n)));
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), 
+                /*typeArguments*/ undefined, [n])));
             }
             return ts.createFunctionDeclaration(
             /*decorators*/ undefined, 
@@ -53964,7 +54682,7 @@ var ts;
                 ts.createForIn(ts.createVariableDeclarationList([
                     ts.createVariableDeclaration(n, /*type*/ undefined)
                 ]), m, ts.createBlock([
-                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 32 /* SingleLine */)
+                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1 /* SingleLine */)
                 ])),
                 ts.createStatement(ts.createCall(exportFunction, 
                 /*typeArguments*/ undefined, [exports]))
@@ -54237,7 +54955,7 @@ var ts;
          */
         function shouldHoistVariableDeclarationList(node) {
             // hoist only non-block scoped declarations or block scoped declarations parented by source file
-            return (ts.getEmitFlags(node) & 16777216 /* NoHoisting */) === 0
+            return (ts.getEmitFlags(node) & 1048576 /* NoHoisting */) === 0
                 && (enclosingBlockScopedContainer.kind === 261 /* SourceFile */
                     || (ts.getOriginalNode(node).flags & 3 /* BlockScoped */) === 0);
         }
@@ -54250,7 +54968,8 @@ var ts;
         function transformInitializedVariable(node, isExportedDeclaration) {
             var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
             return ts.isBindingPattern(node.name)
-                ? ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createAssignment, destructuringVisitor)
+                ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0 /* All */, 
+                /*needsValue*/ false, createAssignment)
                 : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
         }
         /**
@@ -54314,7 +55033,7 @@ var ts;
          * @param node The node to test.
          */
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432 /* HasEndOfDeclarationMarker */) !== 0;
+            return (ts.getEmitFlags(node) & 2097152 /* HasEndOfDeclarationMarker */) !== 0;
         }
         /**
          * Visits a DeclarationMarker used as a placeholder for the end of a transformed
@@ -54515,7 +55234,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value));
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152 /* NoComments */);
+                ts.setEmitFlags(statement, 1536 /* NoComments */);
             }
             return statement;
         }
@@ -54573,9 +55292,9 @@ var ts;
                     return visitCatchClause(node);
                 case 204 /* Block */:
                     return visitBlock(node);
-                case 294 /* MergeDeclarationMarker */:
+                case 295 /* MergeDeclarationMarker */:
                     return visitMergeDeclarationMarker(node);
-                case 295 /* EndOfDeclarationMarker */:
+                case 296 /* EndOfDeclarationMarker */:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return destructuringVisitor(node);
@@ -54754,11 +55473,11 @@ var ts;
          * @param node The node to visit.
          */
         function destructuringVisitor(node) {
-            if (node.transformFlags & 16384 /* DestructuringAssignment */
+            if (node.transformFlags & 1024 /* DestructuringAssignment */
                 && node.kind === 192 /* BinaryExpression */) {
                 return visitDestructuringAssignment(node);
             }
-            else if (node.transformFlags & 32768 /* ContainsDestructuringAssignment */) {
+            else if (node.transformFlags & 2048 /* ContainsDestructuringAssignment */) {
                 return ts.visitEachChild(node, destructuringVisitor, context);
             }
             else {
@@ -54772,7 +55491,8 @@ var ts;
          */
         function visitDestructuringAssignment(node) {
             if (hasExportedReferenceInDestructuringTarget(node.left)) {
-                return ts.flattenDestructuringAssignment(context, node, /*needsValue*/ true, hoistVariableDeclaration, destructuringVisitor);
+                return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0 /* All */, 
+                /*needsValue*/ true);
             }
             return ts.visitEachChild(node, destructuringVisitor, context);
         }
@@ -54896,6 +55616,13 @@ var ts;
          * @param node The node to substitute.
          */
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             // When we see an identifier in an expression position that
             // points to an imported symbol, we should substitute a qualified
             // reference to the imported symbol if one is needed.
@@ -55043,7 +55770,7 @@ var ts;
             _a[ts.ModuleKind.AMD] = transformAMDModule,
             _a[ts.ModuleKind.UMD] = transformUMDModule,
             _a));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var compilerOptions = context.getCompilerOptions();
         var resolver = context.getEmitResolver();
         var host = context.getEmitHost();
@@ -55077,7 +55804,7 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver);
+            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             // Perform the transformation.
             var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
             var updated = transformModule(node);
@@ -55094,12 +55821,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, /*emitAsReturn*/ false);
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(updated, 2 /* EmitExportStar */ | ts.getEmitFlags(node));
+                ts.addEmitHelper(updated, exportStarHelper);
             }
             return updated;
         }
@@ -55119,8 +55847,7 @@ var ts;
          * @param node The SourceFile node.
          */
         function transformUMDModule(node) {
-            var define = ts.createIdentifier("define");
-            ts.setEmitFlags(define, 16 /* UMDDefine */);
+            var define = ts.createRawExpression(umdHelper);
             return transformAsynchronousModule(node, define, /*moduleName*/ undefined, /*includeNonAmdDependencies*/ false);
         }
         /**
@@ -55217,7 +55944,7 @@ var ts;
                 if (includeNonAmdDependencies && importAliasName) {
                     // Set emitFlags on the name of the classDeclaration
                     // This is so that when printer will not substitute the identifier
-                    ts.setEmitFlags(importAliasName, 128 /* NoSubstitution */);
+                    ts.setEmitFlags(importAliasName, 4 /* NoSubstitution */);
                     aliasedModuleNames.push(externalModuleName);
                     importAliasNames.push(ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, importAliasName));
                 }
@@ -55237,6 +55964,7 @@ var ts;
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
             // Visit each statement of the module body.
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             // End the lexical environment for the module body
             // and merge any new lexical declarations.
@@ -55247,7 +55975,7 @@ var ts;
             if (currentModuleInfo.hasExportStarsToExportValues) {
                 // If we have any `export * from ...` declarations
                 // we need to inform the emitter to add the __export helper.
-                ts.setEmitFlags(body, 2 /* EmitExportStar */);
+                ts.addEmitHelper(body, exportStarHelper);
             }
             return body;
         }
@@ -55264,13 +55992,13 @@ var ts;
                 if (emitAsReturn) {
                     var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, 
                     /*location*/ currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 12288 /* NoTokenSourceMaps */ | 49152 /* NoComments */);
+                    ts.setEmitFlags(statement, 384 /* NoTokenSourceMaps */ | 1536 /* NoComments */);
                     statements.push(statement);
                 }
                 else {
                     var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), 
                     /*location*/ currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 49152 /* NoComments */);
+                    ts.setEmitFlags(statement, 1536 /* NoComments */);
                     statements.push(statement);
                 }
             }
@@ -55299,9 +56027,9 @@ var ts;
                     return visitFunctionDeclaration(node);
                 case 226 /* ClassDeclaration */:
                     return visitClassDeclaration(node);
-                case 294 /* MergeDeclarationMarker */:
+                case 295 /* MergeDeclarationMarker */:
                     return visitMergeDeclarationMarker(node);
-                case 295 /* EndOfDeclarationMarker */:
+                case 296 /* EndOfDeclarationMarker */:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     // This visitor does not descend into the tree, as export/import statements
@@ -55590,7 +56318,9 @@ var ts;
          */
         function transformInitializedVariable(node) {
             if (ts.isBindingPattern(node.name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createExportExpression);
+                return ts.flattenDestructuringAssignment(node, 
+                /*visitor*/ undefined, context, 0 /* All */, 
+                /*needsValue*/ false, createExportExpression);
             }
             else {
                 return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, 
@@ -55623,7 +56353,7 @@ var ts;
          * @param node The node to test.
          */
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432 /* HasEndOfDeclarationMarker */) !== 0;
+            return (ts.getEmitFlags(node) & 2097152 /* HasEndOfDeclarationMarker */) !== 0;
         }
         /**
          * Visits a DeclarationMarker used as a placeholder for the end of a transformed
@@ -55826,7 +56556,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value), location);
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152 /* NoComments */);
+                ts.setEmitFlags(statement, 1536 /* NoComments */);
             }
             return statement;
         }
@@ -55947,6 +56677,13 @@ var ts;
          * @param node The node to substitute.
          */
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
                 if (exportContainer && exportContainer.kind === 261 /* SourceFile */) {
@@ -55960,8 +56697,8 @@ var ts;
                         /*location*/ node);
                     }
                     else if (ts.isImportSpecifier(importDeclaration)) {
-                        var name_36 = importDeclaration.propertyName || importDeclaration.name;
-                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_36), 
+                        var name_37 = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_37), 
                         /*location*/ node);
                     }
                 }
@@ -56057,6 +56794,14 @@ var ts;
         var _a;
     }
     ts.transformModule = transformModule;
+    // emit output for the __export helper function
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        scoped: true,
+        text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
+    };
+    // emit output for the UMD helper function.
+    var umdHelper = "\n        (function (dependencies, factory) {\n            if (typeof module === 'object' && typeof module.exports === 'object') {\n                var v = factory(require, exports); if (v !== undefined) module.exports = v;\n            }\n            else if (typeof define === 'function' && define.amd) {\n                define(dependencies, factory);\n            }\n        })";
 })(ts || (ts = {}));
 /// <reference path="visitor.ts" />
 /// <reference path="transformers/ts.ts" />
@@ -56126,23 +56871,29 @@ var ts;
      * @param transforms An array of Transformers.
      */
     function transformFiles(resolver, host, sourceFiles, transformers) {
+        var enabledSyntaxKindFeatures = new Array(298 /* Count */);
+        var lexicalEnvironmentDisabled = false;
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
         var lexicalEnvironmentVariableDeclarationsStack = [];
         var lexicalEnvironmentFunctionDeclarationsStack = [];
-        var enabledSyntaxKindFeatures = new Array(296 /* Count */);
         var lexicalEnvironmentStackOffset = 0;
-        var hoistedVariableDeclarations;
-        var hoistedFunctionDeclarations;
-        var lexicalEnvironmentDisabled;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
         // The transformation context is provided to each transformer as part of transformer
         // initialization.
         var context = {
             getCompilerOptions: function () { return host.getCompilerOptions(); },
             getEmitResolver: function () { return resolver; },
             getEmitHost: function () { return host; },
-            hoistVariableDeclaration: hoistVariableDeclaration,
-            hoistFunctionDeclaration: hoistFunctionDeclaration,
             startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
             endLexicalEnvironment: endLexicalEnvironment,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
             onSubstituteNode: function (_emitContext, node) { return node; },
             enableSubstitution: enableSubstitution,
             isSubstitutionEnabled: isSubstitutionEnabled,
@@ -56183,7 +56934,7 @@ var ts;
          */
         function isSubstitutionEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 1 /* Substitution */) !== 0
-                && (ts.getEmitFlags(node) & 128 /* NoSubstitution */) === 0;
+                && (ts.getEmitFlags(node) & 4 /* NoSubstitution */) === 0;
         }
         /**
          * Emits a node with possible substitution.
@@ -56216,7 +56967,7 @@ var ts;
          */
         function isEmitNotificationEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 2 /* EmitNotifications */) !== 0
-                || (ts.getEmitFlags(node) & 64 /* AdviseOnEmitNode */) !== 0;
+                || (ts.getEmitFlags(node) & 2 /* AdviseOnEmitNode */) !== 0;
         }
         /**
          * Emits a node with possible emit notification.
@@ -56241,11 +56992,11 @@ var ts;
         function hoistVariableDeclaration(name) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
             var decl = ts.createVariableDeclaration(name);
-            if (!hoistedVariableDeclarations) {
-                hoistedVariableDeclarations = [decl];
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
             }
             else {
-                hoistedVariableDeclarations.push(decl);
+                lexicalEnvironmentVariableDeclarations.push(decl);
             }
         }
         /**
@@ -56253,11 +57004,11 @@ var ts;
          */
         function hoistFunctionDeclaration(func) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
-            if (!hoistedFunctionDeclarations) {
-                hoistedFunctionDeclarations = [func];
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
             }
             else {
-                hoistedFunctionDeclarations.push(func);
+                lexicalEnvironmentFunctionDeclarations.push(func);
             }
         }
         /**
@@ -56266,15 +57017,28 @@ var ts;
          */
         function startLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             // Save the current lexical environment. Rather than resizing the array we adjust the
             // stack size variable. This allows us to reuse existing array slots we've
             // already allocated between transformations to avoid allocation and GC overhead during
             // transformation.
-            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedVariableDeclarations;
-            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedFunctionDeclarations;
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
             lexicalEnvironmentStackOffset++;
-            hoistedVariableDeclarations = undefined;
-            hoistedFunctionDeclarations = undefined;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+        }
+        /** Suspends the current lexical environment, usually after visiting a parameter list. */
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        /** Resumes a suspended lexical environment, usually before visiting a function body. */
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
         }
         /**
          * Ends a lexical environment. The previous set of hoisted declarations are restored and
@@ -56282,14 +57046,15 @@ var ts;
          */
         function endLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             var statements;
-            if (hoistedVariableDeclarations || hoistedFunctionDeclarations) {
-                if (hoistedFunctionDeclarations) {
-                    statements = hoistedFunctionDeclarations.slice();
+            if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = lexicalEnvironmentFunctionDeclarations.slice();
                 }
-                if (hoistedVariableDeclarations) {
+                if (lexicalEnvironmentVariableDeclarations) {
                     var statement = ts.createVariableStatement(
-                    /*modifiers*/ undefined, ts.createVariableDeclarationList(hoistedVariableDeclarations));
+                    /*modifiers*/ undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                     if (!statements) {
                         statements = [statement];
                     }
@@ -56300,10 +57065,25 @@ var ts;
             }
             // Restore the previous lexical environment.
             lexicalEnvironmentStackOffset--;
-            hoistedVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
-            hoistedFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+            }
             return statements;
         }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
     }
     ts.transformFiles = transformFiles;
     var _a;
@@ -56528,12 +57308,12 @@ var ts;
                 var emitNode = node.emitNode;
                 var emitFlags = emitNode && emitNode.flags;
                 var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
-                if (node.kind !== 292 /* NotEmittedStatement */
-                    && (emitFlags & 512 /* NoLeadingSourceMap */) === 0
+                if (node.kind !== 293 /* NotEmittedStatement */
+                    && (emitFlags & 16 /* NoLeadingSourceMap */) === 0
                     && pos >= 0) {
                     emitPos(ts.skipTrivia(currentSourceText, pos));
                 }
-                if (emitFlags & 2048 /* NoNestedSourceMaps */) {
+                if (emitFlags & 64 /* NoNestedSourceMaps */) {
                     disabled = true;
                     emitCallback(emitContext, node);
                     disabled = false;
@@ -56541,8 +57321,8 @@ var ts;
                 else {
                     emitCallback(emitContext, node);
                 }
-                if (node.kind !== 292 /* NotEmittedStatement */
-                    && (emitFlags & 1024 /* NoTrailingSourceMap */) === 0
+                if (node.kind !== 293 /* NotEmittedStatement */
+                    && (emitFlags & 32 /* NoTrailingSourceMap */) === 0
                     && end >= 0) {
                     emitPos(end);
                 }
@@ -56564,13 +57344,13 @@ var ts;
             var emitFlags = emitNode && emitNode.flags;
             var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
             tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
-            if ((emitFlags & 4096 /* NoTokenLeadingSourceMaps */) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 128 /* NoTokenLeadingSourceMaps */) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             tokenPos = emitCallback(token, tokenPos);
             if (range)
                 tokenPos = range.end;
-            if ((emitFlags & 8192 /* NoTokenTrailingSourceMaps */) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 256 /* NoTokenTrailingSourceMaps */) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             return tokenPos;
@@ -56707,7 +57487,7 @@ var ts;
                 var emitFlags = ts.getEmitFlags(node);
                 if ((pos < 0 && end < 0) || (pos === end)) {
                     // Both pos and end are synthesized, so just emit the node without comments.
-                    if (emitFlags & 65536 /* NoNestedComments */) {
+                    if (emitFlags & 2048 /* NoNestedComments */) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -56720,9 +57500,9 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.mark("preEmitNodeWithComment");
                     }
-                    var isEmittedNode = node.kind !== 292 /* NotEmittedStatement */;
-                    var skipLeadingComments = pos < 0 || (emitFlags & 16384 /* NoLeadingComments */) !== 0;
-                    var skipTrailingComments = end < 0 || (emitFlags & 32768 /* NoTrailingComments */) !== 0;
+                    var isEmittedNode = node.kind !== 293 /* NotEmittedStatement */;
+                    var skipLeadingComments = pos < 0 || (emitFlags & 512 /* NoLeadingComments */) !== 0;
+                    var skipTrailingComments = end < 0 || (emitFlags & 1024 /* NoTrailingComments */) !== 0;
                     // Emit leading comments if the position is not synthesized and the node
                     // has not opted out from emitting leading comments.
                     if (!skipLeadingComments) {
@@ -56746,7 +57526,7 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.measure("commentTime", "preEmitNodeWithComment");
                     }
-                    if (emitFlags & 65536 /* NoNestedComments */) {
+                    if (emitFlags & 2048 /* NoNestedComments */) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -56778,15 +57558,15 @@ var ts;
             }
             var pos = detachedRange.pos, end = detachedRange.end;
             var emitFlags = ts.getEmitFlags(node);
-            var skipLeadingComments = pos < 0 || (emitFlags & 16384 /* NoLeadingComments */) !== 0;
-            var skipTrailingComments = disabled || end < 0 || (emitFlags & 32768 /* NoTrailingComments */) !== 0;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512 /* NoLeadingComments */) !== 0;
+            var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024 /* NoTrailingComments */) !== 0;
             if (!skipLeadingComments) {
                 emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
             }
             if (extendedDiagnostics) {
                 ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
             }
-            if (emitFlags & 65536 /* NoNestedComments */ && !disabled) {
+            if (emitFlags & 2048 /* NoNestedComments */ && !disabled) {
                 disabled = true;
                 emitCallback(node);
                 disabled = false;
@@ -57241,15 +58021,15 @@ var ts;
             }
         }
         function emitLines(nodes) {
-            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
-                var node = nodes_2[_i];
+            for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+                var node = nodes_4[_i];
                 emit(node);
             }
         }
         function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
             var currentWriterPos = writer.getTextPos();
-            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
-                var node = nodes_3[_i];
+            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                var node = nodes_5[_i];
                 if (!canEmitFn || canEmitFn(node)) {
                     if (currentWriterPos !== writer.getTextPos()) {
                         write(separator);
@@ -57264,7 +58044,7 @@ var ts;
         }
         function writeJsDocComments(declaration) {
             if (declaration) {
-                var jsDocComments = ts.getJsDocCommentsFromText(declaration, currentText);
+                var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
                 ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
                 // jsDoc comments are emitted at /*leading comment1 */space/*leading comment*/space
                 ts.emitComments(currentText, currentLineMap, writer, jsDocComments, /*leadingSeparator*/ false, /*trailingSeparator*/ true, newLine, ts.writeCommentRange);
@@ -57459,9 +58239,9 @@ var ts;
             var count = 0;
             while (true) {
                 count++;
-                var name_37 = baseName + "_" + count;
-                if (!(name_37 in currentIdentifiers)) {
-                    return name_37;
+                var name_38 = baseName + "_" + count;
+                if (!(name_38 in currentIdentifiers)) {
+                    return name_38;
                 }
             }
         }
@@ -57872,6 +58652,9 @@ var ts;
                         case 225 /* FunctionDeclaration */:
                             diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                             break;
+                        case 228 /* TypeAliasDeclaration */:
+                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                            break;
                         default:
                             ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                     }
@@ -57968,7 +58751,10 @@ var ts;
             var prevEnclosingDeclaration = enclosingDeclaration;
             enclosingDeclaration = node;
             emitTypeParameters(node.typeParameters);
-            emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), /*isImplementsList*/ false);
+            var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
+            if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
+                emitHeritageClause(interfaceExtendsTypes, /*isImplementsList*/ false);
+            }
             write(" {");
             writeLine();
             increaseIndent();
@@ -58619,87 +59405,6 @@ var ts;
     function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
         var delimiters = createDelimiterMap();
         var brackets = createBracketsMap();
-        // emit output for the __extends helper function
-        var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n    function __() { this.constructor = d; }\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
-        // Emit output for the __assign helper function.
-        // This is typically used for JSX spread attributes,
-        // and can be used for object literal spread properties.
-        var assignHelper = "\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n        s = arguments[i];\n        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n            t[p] = s[p];\n    }\n    return t;\n};";
-        var restHelper = "\nvar __rest = (this && this.__rest) || function (s, e) {\n    var t = {};\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && !e.indexOf(p))\n        t[p] = s[p];\n    return t;\n};";
-        // emit output for the __decorate helper function
-        var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
-        // emit output for the __metadata helper function
-        var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
-        // emit output for the __param helper function
-        var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n    return function (target, key) { decorator(target, key, paramIndex); }\n};";
-        // emit output for the __awaiter helper function
-        var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments)).next());\n    });\n};";
-        // The __generator helper is used by down-level transformations to emulate the runtime
-        // semantics of an ES2015 generator function. When called, this helper returns an
-        // object that implements the Iterator protocol, in that it has `next`, `return`, and
-        // `throw` methods that step through the generator when invoked.
-        //
-        // parameters:
-        //  thisArg  The value to use as the `this` binding for the transformed generator body.
-        //  body     A function that acts as the transformed generator body.
-        //
-        // variables:
-        //  _       Persistent state for the generator that is shared between the helper and the
-        //          generator body. The state object has the following members:
-        //            sent() - A method that returns or throws the current completion value.
-        //            label  - The next point at which to resume evaluation of the generator body.
-        //            trys   - A stack of protected regions (try/catch/finally blocks).
-        //            ops    - A stack of pending instructions when inside of a finally block.
-        //  f       A value indicating whether the generator is executing.
-        //  y       An iterator to delegate for a yield*.
-        //  t       A temporary variable that holds one of the following values (note that these
-        //          cases do not overlap):
-        //          - The completion value when resuming from a `yield` or `yield*`.
-        //          - The error value for a catch block.
-        //          - The current protected region (array of try/catch/finally/end labels).
-        //          - The verb (`next`, `throw`, or `return` method) to delegate to the expression
-        //            of a `yield*`.
-        //          - The result of evaluating the verb delegated to the expression of a `yield*`.
-        //
-        // functions:
-        //  verb(n)     Creates a bound callback to the `step` function for opcode `n`.
-        //  step(op)    Evaluates opcodes in a generator body until execution is suspended or
-        //              completed.
-        //
-        // The __generator helper understands a limited set of instructions:
-        //  0: next(value?)     - Start or resume the generator with the specified value.
-        //  1: throw(error)     - Resume the generator with an exception. If the generator is
-        //                        suspended inside of one or more protected regions, evaluates
-        //                        any intervening finally blocks between the current label and
-        //                        the nearest catch block or function boundary. If uncaught, the
-        //                        exception is thrown to the caller.
-        //  2: return(value?)   - Resume the generator as if with a return. If the generator is
-        //                        suspended inside of one or more protected regions, evaluates any
-        //                        intervening finally blocks.
-        //  3: break(label)     - Jump to the specified label. If the label is outside of the
-        //                        current protected region, evaluates any intervening finally
-        //                        blocks.
-        //  4: yield(value?)    - Yield execution to the caller with an optional value. When
-        //                        resumed, the generator will continue at the next label.
-        //  5: yield*(value)    - Delegates evaluation to the supplied iterator. When
-        //                        delegation completes, the generator will continue at the next
-        //                        label.
-        //  6: catch(error)     - Handles an exception thrown from within the generator body. If
-        //                        the current label is inside of one or more protected regions,
-        //                        evaluates any intervening finally blocks between the current
-        //                        label and the nearest catch block or function boundary. If
-        //                        uncaught, the exception is thrown to the caller.
-        //  7: endfinally       - Ends a finally block, resuming the last instruction prior to
-        //                        entering a finally block.
-        //
-        // For examples of how these are used, see the comments in ./transformers/generators.ts
-        var generatorHelper = "\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n    return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n    function verb(n) { return function (v) { return step([n, v]); }; }\n    function step(op) {\n        if (f) throw new TypeError(\"Generator is already executing.\");\n        while (_) try {\n            if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n            if (y = 0, t) op = [0, t.value];\n            switch (op[0]) {\n                case 0: case 1: t = op; break;\n                case 4: _.label++; return { value: op[1], done: false };\n                case 5: _.label++; y = op[1]; op = [0]; continue;\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                default:\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                    if (t[2]) _.ops.pop();\n                    _.trys.pop(); continue;\n            }\n            op = body.call(thisArg, _);\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n    }\n};";
-        // emit output for the __export helper function
-        var exportStarHelper = "\nfunction __export(m) {\n    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}";
-        // emit output for the UMD helper function.
-        var umdHelper = "\n(function (dependencies, factory) {\n    if (typeof module === 'object' && typeof module.exports === 'object') {\n        var v = factory(require, exports); if (v !== undefined) module.exports = v;\n    }\n    else if (typeof define === 'function' && define.amd) {\n        define(dependencies, factory);\n    }\n})";
-        var superHelper = "\nconst _super = name => super[name];";
-        var advancedSuperHelper = "\nconst _super = (function (geti, seti) {\n    const cache = Object.create(null);\n    return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n})(name => super[name], (name, value) => super[name] = value);";
         var compilerOptions = host.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var moduleKind = ts.getEmitModuleKind(compilerOptions);
@@ -58721,12 +59426,7 @@ var ts;
         var currentSourceFile;
         var currentText;
         var currentFileIdentifiers;
-        var extendsEmitted;
-        var assignEmitted;
-        var restEmitted;
-        var decorateEmitted;
-        var paramEmitted;
-        var awaiterEmitted;
+        var bundledHelpers;
         var isOwnFileEmit;
         var emitSkipped = false;
         var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
@@ -58779,12 +59479,13 @@ var ts;
             nodeIdToGeneratedName = [];
             autoGeneratedIdToGeneratedName = [];
             generatedNameSet = ts.createMap();
+            bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
             isOwnFileEmit = !isBundledEmit;
             // Emit helpers from all the files
             if (isBundledEmit && moduleKind) {
                 for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                     var sourceFile = sourceFiles_5[_a];
-                    emitEmitHelpers(sourceFile);
+                    emitHelpers(sourceFile, /*isBundle*/ true);
                 }
             }
             // Print each transformed source file.
@@ -58796,14 +59497,14 @@ var ts;
             }
             // Write the source map
             if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
-                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), /*writeByteOrderMark*/ false);
+                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), /*writeByteOrderMark*/ false, sourceFiles);
             }
             // Record source map data for the test harness.
             if (sourceMapDataList) {
                 sourceMapDataList.push(sourceMap.getSourceMapData());
             }
             // Write the output file
-            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM);
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
             // Reset state
             sourceMap.reset();
             comments.reset();
@@ -58811,11 +59512,6 @@ var ts;
             tempFlags = 0 /* Auto */;
             currentSourceFile = undefined;
             currentText = undefined;
-            extendsEmitted = false;
-            assignEmitted = false;
-            decorateEmitted = false;
-            paramEmitted = false;
-            awaiterEmitted = false;
             isOwnFileEmit = false;
         }
         function printSourceFile(node) {
@@ -59279,8 +59975,10 @@ var ts;
                 case 247 /* JsxSelfClosingElement */:
                     return emitJsxSelfClosingElement(node);
                 // Transformation nodes
-                case 293 /* PartiallyEmittedExpression */:
+                case 294 /* PartiallyEmittedExpression */:
                     return emitPartiallyEmittedExpression(node);
+                case 297 /* RawExpression */:
+                    return writeLines(node.text);
             }
         }
         //
@@ -59313,12 +60011,7 @@ var ts;
         // Identifiers
         //
         function emitIdentifier(node) {
-            if (ts.getEmitFlags(node) & 16 /* UMDDefine */) {
-                writeLines(umdHelper);
-            }
-            else {
-                write(getTextOfNode(node, /*includeTrivia*/ false));
-            }
+            write(getTextOfNode(node, /*includeTrivia*/ false));
         }
         //
         // Names
@@ -59579,7 +60272,7 @@ var ts;
                 write("{}");
             }
             else {
-                var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+                var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
                 if (indentedFlag) {
                     increaseIndent();
                 }
@@ -59594,7 +60287,7 @@ var ts;
         function emitPropertyAccessExpression(node) {
             var indentBeforeDot = false;
             var indentAfterDot = false;
-            if (!(ts.getEmitFlags(node) & 1048576 /* NoIndentation */)) {
+            if (!(ts.getEmitFlags(node) & 65536 /* NoIndentation */)) {
                 var dotRangeStart = node.expression.end;
                 var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
                 var dotToken = { kind: 22 /* DotToken */, pos: dotRangeStart, end: dotRangeEnd };
@@ -59801,7 +60494,7 @@ var ts;
             }
         }
         function emitBlockStatements(node) {
-            if (ts.getEmitFlags(node) & 32 /* SingleLine */) {
+            if (ts.getEmitFlags(node) & 1 /* SingleLine */) {
                 emitList(node, node.statements, 384 /* SingleLineBlockStatements */);
             }
             else {
@@ -59980,11 +60673,11 @@ var ts;
             var body = node.body;
             if (body) {
                 if (ts.isBlock(body)) {
-                    var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+                    var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
                     if (indentedFlag) {
                         increaseIndent();
                     }
-                    if (ts.getEmitFlags(node) & 4194304 /* ReuseTempVariableScope */) {
+                    if (ts.getEmitFlags(node) & 262144 /* ReuseTempVariableScope */) {
                         emitSignatureHead(node);
                         emitBlockFunctionBody(body);
                     }
@@ -60022,7 +60715,7 @@ var ts;
             // * The body is explicitly marked as multi-line.
             // * A non-synthesized body's start and end position are on different lines.
             // * Any statement in the body starts on a new line.
-            if (ts.getEmitFlags(body) & 32 /* SingleLine */) {
+            if (ts.getEmitFlags(body) & 1 /* SingleLine */) {
                 return true;
             }
             if (body.multiLine) {
@@ -60078,7 +60771,7 @@ var ts;
             emitModifiers(node, node.modifiers);
             write("class");
             emitNodeWithPrefix(" ", node.name, emitIdentifierName);
-            var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+            var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
             if (indentedFlag) {
                 increaseIndent();
             }
@@ -60358,7 +61051,7 @@ var ts;
             // "comment1" is not considered to be leading comment for node.initializer
             // but rather a trailing comment on the previous node.
             var initializer = node.initializer;
-            if ((ts.getEmitFlags(initializer) & 16384 /* NoLeadingComments */) === 0) {
+            if ((ts.getEmitFlags(initializer) & 512 /* NoLeadingComments */) === 0) {
                 var commentRange = ts.getCommentRange(initializer);
                 emitTrailingCommentsOfPosition(commentRange.pos);
             }
@@ -60424,78 +61117,37 @@ var ts;
             }
             return statements.length;
         }
-        function emitHelpers(node) {
-            var emitFlags = ts.getEmitFlags(node);
+        function emitHelpers(node, isBundle) {
+            var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
+            var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
+            var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
             var helpersEmitted = false;
-            if (emitFlags & 1 /* EmitEmitHelpers */) {
-                helpersEmitted = emitEmitHelpers(currentSourceFile);
-            }
-            if (emitFlags & 2 /* EmitExportStar */) {
-                writeLines(exportStarHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 4 /* EmitSuperHelper */) {
-                writeLines(superHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 8 /* EmitAdvancedSuperHelper */) {
-                writeLines(advancedSuperHelper);
-                helpersEmitted = true;
-            }
-            return helpersEmitted;
-        }
-        function emitEmitHelpers(node) {
-            // Only emit helpers if the user did not say otherwise.
-            if (compilerOptions.noEmitHelpers) {
-                return false;
-            }
-            // Don't emit helpers if we can import them.
-            if (compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                return false;
-            }
-            var helpersEmitted = false;
-            // Only Emit __extends function when target ES5.
-            // For target ES6 and above, we can emit classDeclaration as is.
-            if ((languageVersion < 2 /* ES2015 */) && (!extendsEmitted && node.flags & 1024 /* HasClassExtends */)) {
-                writeLines(extendsHelper);
-                extendsEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 5 /* ESNext */ || currentSourceFile.scriptKind === 2 /* JSX */ || currentSourceFile.scriptKind === 4 /* TSX */) &&
-                compilerOptions.jsx !== 1 /* Preserve */ &&
-                !assignEmitted &&
-                node.flags & 16384 /* HasSpreadAttribute */) {
-                writeLines(assignHelper);
-                assignEmitted = true;
-            }
-            if (languageVersion < 5 /* ESNext */ && !restEmitted && node.flags & 32768 /* HasRestAttribute */) {
-                writeLines(restHelper);
-                restEmitted = true;
-            }
-            if (!decorateEmitted && node.flags & 2048 /* HasDecorators */) {
-                writeLines(decorateHelper);
-                if (compilerOptions.emitDecoratorMetadata) {
-                    writeLines(metadataHelper);
-                }
-                decorateEmitted = true;
-                helpersEmitted = true;
-            }
-            if (!paramEmitted && node.flags & 4096 /* HasParamDecorators */) {
-                writeLines(paramHelper);
-                paramEmitted = true;
-                helpersEmitted = true;
-            }
-            // Only emit __awaiter function when target ES5/ES6.
-            // Only emit __generator function when target ES5.
-            // For target ES2017 and above, we can emit async/await as is.
-            if ((languageVersion < 4 /* ES2017 */) && (!awaiterEmitted && node.flags & 8192 /* HasAsyncFunctions */)) {
-                writeLines(awaiterHelper);
-                if (languageVersion < 2 /* ES2015 */) {
-                    writeLines(generatorHelper);
+            var helpers = ts.getEmitHelpers(node);
+            if (helpers) {
+                for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
+                    var helper = _b[_a];
+                    if (!helper.scoped) {
+                        // Skip the helper if it can be skipped and the noEmitHelpers compiler
+                        // option is set, or if it can be imported and the importHelpers compiler
+                        // option is set.
+                        if (shouldSkip)
+                            continue;
+                        // Skip the helper if it can be bundled but hasn't already been emitted and we
+                        // are emitting a bundled module.
+                        if (shouldBundle) {
+                            if (bundledHelpers[helper.name]) {
+                                continue;
+                            }
+                            bundledHelpers[helper.name] = true;
+                        }
+                    }
+                    else if (isBundle) {
+                        // Skip the helper if it is scoped and we are emitting bundled helpers
+                        continue;
+                    }
+                    writeLines(helper.text);
+                    helpersEmitted = true;
                 }
-                awaiterEmitted = true;
-                helpersEmitted = true;
             }
             if (helpersEmitted) {
                 writeLine();
@@ -60503,9 +61155,10 @@ var ts;
             return helpersEmitted;
         }
         function writeLines(text) {
-            var lines = text.split(/\r\n|\r|\n/g);
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = guessIndentation(lines);
             for (var i = 0; i < lines.length; i++) {
-                var line = lines[i];
+                var line = indentation ? lines[i].slice(indentation) : lines[i];
                 if (line.length) {
                     if (i > 0) {
                         writeLine();
@@ -60514,6 +61167,21 @@ var ts;
                 }
             }
         }
+        function guessIndentation(lines) {
+            var indentation;
+            for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
+                var line = lines_1[_a];
+                for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
+                    if (!ts.isWhiteSpace(line.charCodeAt(i))) {
+                        if (indentation === undefined || i < indentation) {
+                            indentation = i;
+                            break;
+                        }
+                    }
+                }
+            }
+            return indentation;
+        }
         //
         // Helpers
         //
@@ -60881,10 +61549,10 @@ var ts;
         */
         function makeTempVariableName(flags) {
             if (flags && !(tempFlags & flags)) {
-                var name_38 = flags === 268435456 /* _i */ ? "_i" : "_n";
-                if (isUniqueName(name_38)) {
+                var name_39 = flags === 268435456 /* _i */ ? "_i" : "_n";
+                if (isUniqueName(name_39)) {
                     tempFlags |= flags;
-                    return name_38;
+                    return name_39;
                 }
             }
             while (true) {
@@ -60892,11 +61560,11 @@ var ts;
                 tempFlags++;
                 // Skip over 'i' and 'n'
                 if (count !== 8 && count !== 13) {
-                    var name_39 = count < 26
+                    var name_40 = count < 26
                         ? "_" + String.fromCharCode(97 /* a */ + count)
                         : "_" + (count - 26);
-                    if (isUniqueName(name_39)) {
-                        return name_39;
+                    if (isUniqueName(name_40)) {
+                        return name_40;
                     }
                 }
             }
@@ -61121,8 +61789,6 @@ var ts;
 /// <reference path="core.ts" />
 var ts;
 (function (ts) {
-    /** The version of the TypeScript compiler release */
-    ts.version = "2.2.0-dev.20161115";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -61349,10 +62015,10 @@ var ts;
         var resolutions = [];
         var cache = ts.createMap();
         for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
-            var name_40 = names_1[_i];
-            var result = name_40 in cache
-                ? cache[name_40]
-                : cache[name_40] = loader(name_40, containingFile);
+            var name_41 = names_1[_i];
+            var result = name_41 in cache
+                ? cache[name_41]
+                : cache[name_41] = loader(name_41, containingFile);
             resolutions.push(result);
         }
         return resolutions;
@@ -61422,7 +62088,8 @@ var ts;
             var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
             if (typeReferences.length) {
                 // This containingFilename needs to match with the one used in managed-side
-                var containingFilename = ts.combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
                 var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (var i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);
@@ -62003,8 +62670,8 @@ var ts;
                             }
                             break;
                     }
-                    for (var _b = 0, nodes_4 = nodes; _b < nodes_4.length; _b++) {
-                        var node = nodes_4[_b];
+                    for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
+                        var node = nodes_6[_b];
                         walk(node);
                     }
                 }
@@ -63108,12 +63775,19 @@ var ts;
         }
     ];
     /* @internal */
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
+            /* @deprecated typingOptions.enableAutoDiscovery
+             * Use typeAcquisition.enable instead.
+             */
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -63139,6 +63813,20 @@ var ts;
     };
     var optionNameMapCache;
     /* @internal */
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        // Convert deprecated typingOptions.enableAutoDiscovery to typeAcquisition.enable
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
+    /* @internal */
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -63379,11 +64067,11 @@ var ts;
         function serializeCompilerOptions(options) {
             var result = ts.createMap();
             var optionsNameMap = getOptionNameMap().optionNameMap;
-            for (var name_41 in options) {
-                if (ts.hasProperty(options, name_41)) {
+            for (var name_42 in options) {
+                if (ts.hasProperty(options, name_42)) {
                     // tsconfig only options cannot be specified via command line,
                     // so we can assume that only types that can appear here string | number | boolean
-                    switch (name_41) {
+                    switch (name_42) {
                         case "init":
                         case "watch":
                         case "version":
@@ -63391,14 +64079,14 @@ var ts;
                         case "project":
                             break;
                         default:
-                            var value = options[name_41];
-                            var optionDefinition = optionsNameMap[name_41.toLowerCase()];
+                            var value = options[name_42];
+                            var optionDefinition = optionsNameMap[name_42.toLowerCase()];
                             if (optionDefinition) {
                                 var customTypeMap = getCustomTypeMapOfCommandLineOption(optionDefinition);
                                 if (!customTypeMap) {
                                     // There is no map associated with this compiler option then use the value as-is
                                     // This is the case if the value is expect to be string, number, boolean or list of string
-                                    result[name_41] = value;
+                                    result[name_42] = value;
                                 }
                                 else {
                                     if (optionDefinition.type === "list") {
@@ -63407,11 +64095,11 @@ var ts;
                                             var element = _a[_i];
                                             convertedValue.push(getNameOfCompilerOptionValue(element, customTypeMap));
                                         }
-                                        result[name_41] = convertedValue;
+                                        result[name_42] = convertedValue;
                                     }
                                     else {
                                         // There is a typeMap associated with this command-line option so use it to map value back to its name
-                                        result[name_41] = getNameOfCompilerOptionValue(value, customTypeMap);
+                                        result[name_42] = getNameOfCompilerOptionValue(value, customTypeMap);
                                     }
                                 }
                             }
@@ -63464,14 +64152,17 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        // typingOptions has been deprecated and is only supported for backward compatibility purposes.
+        // It should be removed in future releases - use typeAcquisition instead.
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -63498,7 +64189,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -63507,7 +64198,7 @@ var ts;
         function tryExtendsName(extendedConfig) {
             // If the path isn't a rooted or relative path, don't try to resolve it (we reserve the right to special case module-id like paths in the future)
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -63571,8 +64262,8 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                // By default, exclude common package folders and the outDir
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                // If no includes were specified, exclude common package folders and the outDir
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -63607,12 +64298,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -63620,9 +64311,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -64527,7 +65219,7 @@ var ts;
             case 243 /* ExportSpecifier */:
             case 237 /* NamespaceImport */:
                 return ts.ScriptElementKind.alias;
-            case 284 /* JSDocTypedefTag */:
+            case 285 /* JSDocTypedefTag */:
                 return ts.ScriptElementKind.typeElement;
             default:
                 return ts.ScriptElementKind.unknown;
@@ -64763,7 +65455,7 @@ var ts;
         // for the position of the relevant node (or comma).
         var syntaxList = ts.forEach(node.parent.getChildren(), function (c) {
             // find syntax list that covers the span of the node
-            if (c.kind === 291 /* SyntaxList */ && c.pos <= node.pos && c.end >= node.end) {
+            if (c.kind === 292 /* SyntaxList */ && c.pos <= node.pos && c.end >= node.end) {
                 return c;
             }
         });
@@ -65073,11 +65765,11 @@ var ts;
             }
         }
         if (node) {
-            if (node.jsDocComments) {
-                for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                    var jsDocComment = _a[_i];
-                    if (jsDocComment.tags) {
-                        for (var _b = 0, _c = jsDocComment.tags; _b < _c.length; _b++) {
+            if (node.jsDoc) {
+                for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                    var jsDoc = _a[_i];
+                    if (jsDoc.tags) {
+                        for (var _b = 0, _c = jsDoc.tags; _b < _c.length; _b++) {
                             var tag = _c[_b];
                             if (tag.pos <= position && position <= tag.end) {
                                 return tag;
@@ -65416,7 +66108,7 @@ var ts;
         if (isImportOrExportSpecifierName(location)) {
             return location.getText();
         }
-        else if (ts.isStringOrNumericLiteral(location.kind) &&
+        else if (ts.isStringOrNumericLiteral(location) &&
             location.parent.kind === 142 /* ComputedPropertyName */) {
             return location.text;
         }
@@ -66153,16 +66845,16 @@ var ts;
                     pushClassification(tag.tagName.pos, tag.tagName.end - tag.tagName.pos, 18 /* docCommentTagName */);
                     pos = tag.tagName.end;
                     switch (tag.kind) {
-                        case 280 /* JSDocParameterTag */:
+                        case 281 /* JSDocParameterTag */:
                             processJSDocParameterTag(tag);
                             break;
-                        case 283 /* JSDocTemplateTag */:
+                        case 284 /* JSDocTemplateTag */:
                             processJSDocTemplateTag(tag);
                             break;
-                        case 282 /* JSDocTypeTag */:
+                        case 283 /* JSDocTypeTag */:
                             processElement(tag.typeExpression);
                             break;
-                        case 281 /* JSDocReturnTag */:
+                        case 282 /* JSDocReturnTag */:
                             processElement(tag.typeExpression);
                             break;
                     }
@@ -66440,14 +67132,14 @@ var ts;
             function getJavaScriptCompletionEntries(sourceFile, position, uniqueNames) {
                 var entries = [];
                 var nameTable = ts.getNameTable(sourceFile);
-                for (var name_42 in nameTable) {
+                for (var name_43 in nameTable) {
                     // Skip identifiers produced only from the current location
-                    if (nameTable[name_42] === position) {
+                    if (nameTable[name_43] === position) {
                         continue;
                     }
-                    if (!uniqueNames[name_42]) {
-                        uniqueNames[name_42] = name_42;
-                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_42), compilerOptions.target, /*performCharacterChecks*/ true);
+                    if (!uniqueNames[name_43]) {
+                        uniqueNames[name_43] = name_43;
+                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_43), compilerOptions.target, /*performCharacterChecks*/ true);
                         if (displayName) {
                             var entry = {
                                 name: displayName,
@@ -66960,11 +67652,11 @@ var ts;
                     if (currentConfigPath) {
                         paths.push(currentConfigPath);
                         currentDir = ts.getDirectoryPath(currentConfigPath);
-                        var parent_14 = ts.getDirectoryPath(currentDir);
-                        if (currentDir === parent_14) {
+                        var parent_13 = ts.getDirectoryPath(currentDir);
+                        if (currentDir === parent_13) {
                             break;
                         }
-                        currentDir = parent_14;
+                        currentDir = parent_13;
                     }
                     else {
                         break;
@@ -67045,14 +67737,14 @@ var ts;
             // Compute all the completion symbols again.
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_2 = completionData.location;
+                var symbols = completionData.symbols, location_3 = completionData.location;
                 // Find the symbol with the matching entry name.
                 // We don't need to perform character checks here because we're only comparing the
                 // name against 'entryName' (which is known to be good), not building a new
                 // completion entry.
-                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_2) === entryName ? s : undefined; });
+                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_3) === entryName ? s : undefined; });
                 if (symbol) {
-                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_2, location_2, 7 /* All */), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
+                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_3, location_3, 7 /* All */), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
                     return {
                         name: entryName,
                         kindModifiers: ts.SymbolDisplay.getSymbolModifiers(symbol),
@@ -67080,12 +67772,12 @@ var ts;
             // Compute all the completion symbols again.
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_3 = completionData.location;
+                var symbols = completionData.symbols, location_4 = completionData.location;
                 // Find the symbol with the matching entry name.
                 // We don't need to perform character checks here because we're only comparing the
                 // name against 'entryName' (which is known to be good), not building a new
                 // completion entry.
-                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_3) === entryName ? s : undefined; });
+                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_4) === entryName ? s : undefined; });
             }
             return undefined;
         }
@@ -67116,9 +67808,9 @@ var ts;
                         isJsDocTagName = true;
                     }
                     switch (tag.kind) {
-                        case 282 /* JSDocTypeTag */:
-                        case 280 /* JSDocParameterTag */:
-                        case 281 /* JSDocReturnTag */:
+                        case 283 /* JSDocTypeTag */:
+                        case 281 /* JSDocParameterTag */:
+                        case 282 /* JSDocReturnTag */:
                             var tagWithExpression = tag;
                             if (tagWithExpression.typeExpression) {
                                 insideJsDocTagExpression = tagWithExpression.typeExpression.pos < position && position < tagWithExpression.typeExpression.end;
@@ -67163,13 +67855,13 @@ var ts;
                     log("Returning an empty list because completion was requested in an invalid position.");
                     return undefined;
                 }
-                var parent_15 = contextToken.parent, kind = contextToken.kind;
+                var parent_14 = contextToken.parent, kind = contextToken.kind;
                 if (kind === 22 /* DotToken */) {
-                    if (parent_15.kind === 177 /* PropertyAccessExpression */) {
+                    if (parent_14.kind === 177 /* PropertyAccessExpression */) {
                         node = contextToken.parent.expression;
                         isRightOfDot = true;
                     }
-                    else if (parent_15.kind === 141 /* QualifiedName */) {
+                    else if (parent_14.kind === 141 /* QualifiedName */) {
                         node = contextToken.parent.left;
                         isRightOfDot = true;
                     }
@@ -67556,9 +68248,9 @@ var ts;
                     switch (contextToken.kind) {
                         case 16 /* OpenBraceToken */: // const x = { |
                         case 25 /* CommaToken */:
-                            var parent_16 = contextToken.parent;
-                            if (parent_16 && (parent_16.kind === 176 /* ObjectLiteralExpression */ || parent_16.kind === 172 /* ObjectBindingPattern */)) {
-                                return parent_16;
+                            var parent_15 = contextToken.parent;
+                            if (parent_15 && (parent_15.kind === 176 /* ObjectLiteralExpression */ || parent_15.kind === 172 /* ObjectBindingPattern */)) {
+                                return parent_15;
                             }
                             break;
                     }
@@ -67585,37 +68277,37 @@ var ts;
             }
             function tryGetContainingJsxElement(contextToken) {
                 if (contextToken) {
-                    var parent_17 = contextToken.parent;
+                    var parent_16 = contextToken.parent;
                     switch (contextToken.kind) {
                         case 27 /* LessThanSlashToken */:
                         case 40 /* SlashToken */:
                         case 70 /* Identifier */:
                         case 250 /* JsxAttribute */:
                         case 251 /* JsxSpreadAttribute */:
-                            if (parent_17 && (parent_17.kind === 247 /* JsxSelfClosingElement */ || parent_17.kind === 248 /* JsxOpeningElement */)) {
-                                return parent_17;
+                            if (parent_16 && (parent_16.kind === 247 /* JsxSelfClosingElement */ || parent_16.kind === 248 /* JsxOpeningElement */)) {
+                                return parent_16;
                             }
-                            else if (parent_17.kind === 250 /* JsxAttribute */) {
-                                return parent_17.parent;
+                            else if (parent_16.kind === 250 /* JsxAttribute */) {
+                                return parent_16.parent;
                             }
                             break;
                         // The context token is the closing } or " of an attribute, which means
                         // its parent is a JsxExpression, whose parent is a JsxAttribute,
                         // whose parent is a JsxOpeningLikeElement
                         case 9 /* StringLiteral */:
-                            if (parent_17 && ((parent_17.kind === 250 /* JsxAttribute */) || (parent_17.kind === 251 /* JsxSpreadAttribute */))) {
-                                return parent_17.parent;
+                            if (parent_16 && ((parent_16.kind === 250 /* JsxAttribute */) || (parent_16.kind === 251 /* JsxSpreadAttribute */))) {
+                                return parent_16.parent;
                             }
                             break;
                         case 17 /* CloseBraceToken */:
-                            if (parent_17 &&
-                                parent_17.kind === 252 /* JsxExpression */ &&
-                                parent_17.parent &&
-                                (parent_17.parent.kind === 250 /* JsxAttribute */)) {
-                                return parent_17.parent.parent;
+                            if (parent_16 &&
+                                parent_16.kind === 252 /* JsxExpression */ &&
+                                parent_16.parent &&
+                                (parent_16.parent.kind === 250 /* JsxAttribute */)) {
+                                return parent_16.parent.parent;
                             }
-                            if (parent_17 && parent_17.kind === 251 /* JsxSpreadAttribute */) {
-                                return parent_17.parent;
+                            if (parent_16 && parent_16.kind === 251 /* JsxSpreadAttribute */) {
+                                return parent_16.parent;
                             }
                             break;
                     }
@@ -67752,8 +68444,8 @@ var ts;
                     if (element.getStart() <= position && position <= element.getEnd()) {
                         continue;
                     }
-                    var name_43 = element.propertyName || element.name;
-                    existingImportsOrExports[name_43.text] = true;
+                    var name_44 = element.propertyName || element.name;
+                    existingImportsOrExports[name_44.text] = true;
                 }
                 if (!ts.someProperties(existingImportsOrExports)) {
                     return ts.filter(exportsOfModule, function (e) { return e.name !== "default"; });
@@ -68112,19 +68804,19 @@ var ts;
                 function getThrowStatementOwner(throwStatement) {
                     var child = throwStatement;
                     while (child.parent) {
-                        var parent_18 = child.parent;
-                        if (ts.isFunctionBlock(parent_18) || parent_18.kind === 261 /* SourceFile */) {
-                            return parent_18;
+                        var parent_17 = child.parent;
+                        if (ts.isFunctionBlock(parent_17) || parent_17.kind === 261 /* SourceFile */) {
+                            return parent_17;
                         }
                         // A throw-statement is only owned by a try-statement if the try-statement has
                         // a catch clause, and if the throw-statement occurs within the try block.
-                        if (parent_18.kind === 221 /* TryStatement */) {
-                            var tryStatement = parent_18;
+                        if (parent_17.kind === 221 /* TryStatement */) {
+                            var tryStatement = parent_17;
                             if (tryStatement.tryBlock === child && tryStatement.catchClause) {
                                 return child;
                             }
                         }
-                        child = parent_18;
+                        child = parent_17;
                     }
                     return undefined;
                 }
@@ -69081,24 +69773,24 @@ var ts;
                     // If we got a type reference, try and see if the reference applies to any expressions that can implement an interface
                     var containingTypeReference = getContainingTypeReference(refNode);
                     if (containingTypeReference) {
-                        var parent_19 = containingTypeReference.parent;
-                        if (ts.isVariableLike(parent_19) && parent_19.type === containingTypeReference && parent_19.initializer && isImplementationExpression(parent_19.initializer)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.initializer));
+                        var parent_18 = containingTypeReference.parent;
+                        if (ts.isVariableLike(parent_18) && parent_18.type === containingTypeReference && parent_18.initializer && isImplementationExpression(parent_18.initializer)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.initializer));
                         }
-                        else if (ts.isFunctionLike(parent_19) && parent_19.type === containingTypeReference && parent_19.body) {
-                            if (parent_19.body.kind === 204 /* Block */) {
-                                ts.forEachReturnStatement(parent_19.body, function (returnStatement) {
+                        else if (ts.isFunctionLike(parent_18) && parent_18.type === containingTypeReference && parent_18.body) {
+                            if (parent_18.body.kind === 204 /* Block */) {
+                                ts.forEachReturnStatement(parent_18.body, function (returnStatement) {
                                     if (returnStatement.expression && isImplementationExpression(returnStatement.expression)) {
                                         maybeAdd(getReferenceEntryFromNode(returnStatement.expression));
                                     }
                                 });
                             }
-                            else if (isImplementationExpression(parent_19.body)) {
-                                maybeAdd(getReferenceEntryFromNode(parent_19.body));
+                            else if (isImplementationExpression(parent_18.body)) {
+                                maybeAdd(getReferenceEntryFromNode(parent_18.body));
                             }
                         }
-                        else if (ts.isAssertionExpression(parent_19) && isImplementationExpression(parent_19.expression)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.expression));
+                        else if (ts.isAssertionExpression(parent_18) && isImplementationExpression(parent_18.expression)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.expression));
                         }
                     }
                 }
@@ -69593,9 +70285,9 @@ var ts;
                                 return undefined;
                             }
                         }
-                        var result_3 = [];
-                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_3, /*previousIterationSymbolsCache*/ ts.createMap());
-                        return ts.forEach(result_3, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+                        var result_4 = [];
+                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_4, /*previousIterationSymbolsCache*/ ts.createMap());
+                        return ts.forEach(result_4, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
                     }
                     return undefined;
                 });
@@ -69604,7 +70296,7 @@ var ts;
                 if (node.name.kind === 142 /* ComputedPropertyName */) {
                     var nameExpression = node.name.expression;
                     // treat computed property names where expression is string/numeric literal as just string/numeric literal
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     return undefined;
@@ -69616,20 +70308,20 @@ var ts;
                 var contextualType = typeChecker.getContextualType(objectLiteral);
                 var name = getNameFromObjectLiteralElement(node);
                 if (name && contextualType) {
-                    var result_4 = [];
+                    var result_5 = [];
                     var symbol_2 = contextualType.getProperty(name);
                     if (symbol_2) {
-                        result_4.push(symbol_2);
+                        result_5.push(symbol_2);
                     }
                     if (contextualType.flags & 65536 /* Union */) {
                         ts.forEach(contextualType.types, function (t) {
                             var symbol = t.getProperty(name);
                             if (symbol) {
-                                result_4.push(symbol);
+                                result_5.push(symbol);
                             }
                         });
                     }
-                    return result_4;
+                    return result_5;
                 }
                 return undefined;
             }
@@ -69896,13 +70588,13 @@ var ts;
                 return undefined;
             }
             if (type.flags & 65536 /* Union */ && !(type.flags & 16 /* Enum */)) {
-                var result_5 = [];
+                var result_6 = [];
                 ts.forEach(type.types, function (t) {
                     if (t.symbol) {
-                        ts.addRange(/*to*/ result_5, /*from*/ getDefinitionFromSymbol(typeChecker, t.symbol, node));
+                        ts.addRange(/*to*/ result_6, /*from*/ getDefinitionFromSymbol(typeChecker, t.symbol, node));
                     }
                 });
-                return result_5;
+                return result_6;
             }
             if (!type.symbol) {
                 return undefined;
@@ -70113,7 +70805,7 @@ var ts;
             // from Array<T> - Array<string> and Array<number>
             var documentationComment = [];
             forEachUnique(declarations, function (declaration) {
-                var comments = ts.getJSDocComments(declaration, /*checkParentVariableStatement*/ true);
+                var comments = ts.getCommentsFromJSDoc(declaration);
                 if (!comments) {
                     return;
                 }
@@ -70320,13 +71012,13 @@ var ts;
          * @param projectRootPath is the path to the project root directory
          * @param safeListPath is the path used to retrieve the safe list
          * @param packageNameToTypingLocation is the map of package names to their cached typing locations
-         * @param typingOptions are used to customize the typing inference process
+         * @param typeAcquisition is used to customize the typing acquisition process
          * @param compilerOptions are used as a source for typing inference
          */
-        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typingOptions, unresolvedImports) {
+        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typeAcquisition, unresolvedImports) {
             // A typing name to typing file path mapping
             var inferredTypings = ts.createMap();
-            if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+            if (!typeAcquisition || !typeAcquisition.enable) {
                 return { cachedTypingPaths: [], newTypingNames: [], filesToWatch: [] };
             }
             // Only infer typings for .js and .jsx files
@@ -70342,8 +71034,8 @@ var ts;
             // Directories to search for package.json, bower.json and other typing information
             var searchDirs = [];
             var exclude = [];
-            mergeTypings(typingOptions.include);
-            exclude = typingOptions.exclude || [];
+            mergeTypings(typeAcquisition.include);
+            exclude = typeAcquisition.exclude || [];
             var possibleSearchDirs = ts.map(fileNames, ts.getDirectoryPath);
             if (projectRootPath) {
                 possibleSearchDirs.push(projectRootPath);
@@ -70370,9 +71062,9 @@ var ts;
                 }
             }
             // Add the cached typing locations for inferred typings that are already installed
-            for (var name_44 in packageNameToTypingLocation) {
-                if (name_44 in inferredTypings && !inferredTypings[name_44]) {
-                    inferredTypings[name_44] = packageNameToTypingLocation[name_44];
+            for (var name_45 in packageNameToTypingLocation) {
+                if (name_45 in inferredTypings && !inferredTypings[name_45]) {
+                    inferredTypings[name_45] = packageNameToTypingLocation[name_45];
                 }
             }
             // Remove typings that the user has added to the exclude list
@@ -70510,12 +71202,12 @@ var ts;
                     return;
                 }
                 var nameToDeclarations = sourceFile.getNamedDeclarations();
-                for (var name_45 in nameToDeclarations) {
-                    var declarations = nameToDeclarations[name_45];
+                for (var name_46 in nameToDeclarations) {
+                    var declarations = nameToDeclarations[name_46];
                     if (declarations) {
                         // First do a quick check to see if the name of the declaration matches the
                         // last portion of the (possibly) dotted name they're searching for.
-                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_45);
+                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_46);
                         if (!matches) {
                             continue;
                         }
@@ -70528,14 +71220,14 @@ var ts;
                                 if (!containers) {
                                     return undefined;
                                 }
-                                matches = patternMatcher.getMatches(containers, name_45);
+                                matches = patternMatcher.getMatches(containers, name_46);
                                 if (!matches) {
                                     continue;
                                 }
                             }
                             var fileName = sourceFile.fileName;
                             var matchKind = bestMatchKind(matches);
-                            rawItems.push({ name: name_45, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
+                            rawItems.push({ name: name_46, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
                         }
                     }
                 }
@@ -70824,9 +71516,9 @@ var ts;
                 case 174 /* BindingElement */:
                 case 223 /* VariableDeclaration */:
                     var decl = node;
-                    var name_46 = decl.name;
-                    if (ts.isBindingPattern(name_46)) {
-                        addChildrenRecursively(name_46);
+                    var name_47 = decl.name;
+                    if (ts.isBindingPattern(name_47)) {
+                        addChildrenRecursively(name_47);
                     }
                     else if (decl.initializer && isFunctionOrClassExpression(decl.initializer)) {
                         // For `const x = function() {}`, just use the function node, not the const.
@@ -70873,9 +71565,9 @@ var ts;
                     addLeafNode(node);
                     break;
                 default:
-                    ts.forEach(node.jsDocComments, function (jsDocComment) {
-                        ts.forEach(jsDocComment.tags, function (tag) {
-                            if (tag.kind === 284 /* JSDocTypedefTag */) {
+                    ts.forEach(node.jsDoc, function (jsDoc) {
+                        ts.forEach(jsDoc.tags, function (tag) {
+                            if (tag.kind === 285 /* JSDocTypedefTag */) {
                                 addLeafNode(tag);
                             }
                         });
@@ -71005,7 +71697,7 @@ var ts;
                 case 185 /* ArrowFunction */:
                 case 197 /* ClassExpression */:
                     return getFunctionOrClassName(node);
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     return getJSDocTypedefTagName(node);
                 default:
                     return undefined;
@@ -71048,7 +71740,7 @@ var ts;
                     return "()";
                 case 155 /* IndexSignature */:
                     return "[]";
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     return getJSDocTypedefTagName(node);
                 default:
                     return "<unknown>";
@@ -71096,7 +71788,7 @@ var ts;
                     case 230 /* ModuleDeclaration */:
                     case 261 /* SourceFile */:
                     case 228 /* TypeAliasDeclaration */:
-                    case 284 /* JSDocTypedefTag */:
+                    case 285 /* JSDocTypedefTag */:
                         return true;
                     case 150 /* Constructor */:
                     case 149 /* MethodDeclaration */:
@@ -71333,28 +72025,28 @@ var ts;
                 switch (n.kind) {
                     case 204 /* Block */:
                         if (!ts.isFunctionBlock(n)) {
-                            var parent_20 = n.parent;
+                            var parent_19 = n.parent;
                             var openBrace = ts.findChildOfKind(n, 16 /* OpenBraceToken */, sourceFile);
                             var closeBrace = ts.findChildOfKind(n, 17 /* CloseBraceToken */, sourceFile);
                             // Check if the block is standalone, or 'attached' to some parent statement.
                             // If the latter, we want to collapse the block, but consider its hint span
                             // to be the entire span of the parent.
-                            if (parent_20.kind === 209 /* DoStatement */ ||
-                                parent_20.kind === 212 /* ForInStatement */ ||
-                                parent_20.kind === 213 /* ForOfStatement */ ||
-                                parent_20.kind === 211 /* ForStatement */ ||
-                                parent_20.kind === 208 /* IfStatement */ ||
-                                parent_20.kind === 210 /* WhileStatement */ ||
-                                parent_20.kind === 217 /* WithStatement */ ||
-                                parent_20.kind === 256 /* CatchClause */) {
-                                addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                            if (parent_19.kind === 209 /* DoStatement */ ||
+                                parent_19.kind === 212 /* ForInStatement */ ||
+                                parent_19.kind === 213 /* ForOfStatement */ ||
+                                parent_19.kind === 211 /* ForStatement */ ||
+                                parent_19.kind === 208 /* IfStatement */ ||
+                                parent_19.kind === 210 /* WhileStatement */ ||
+                                parent_19.kind === 217 /* WithStatement */ ||
+                                parent_19.kind === 256 /* CatchClause */) {
+                                addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                 break;
                             }
-                            if (parent_20.kind === 221 /* TryStatement */) {
+                            if (parent_19.kind === 221 /* TryStatement */) {
                                 // Could be the try-block, or the finally-block.
-                                var tryStatement = parent_20;
+                                var tryStatement = parent_19;
                                 if (tryStatement.tryBlock === n) {
-                                    addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                                    addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                     break;
                                 }
                                 else if (tryStatement.finallyBlock === n) {
@@ -73447,9 +74139,9 @@ var ts;
                     return false;
                 }
                 // If the parent is not sourceFile or module block it is local variable
-                for (var parent_21 = declaration.parent; !ts.isFunctionBlock(parent_21); parent_21 = parent_21.parent) {
+                for (var parent_20 = declaration.parent; !ts.isFunctionBlock(parent_20); parent_20 = parent_20.parent) {
                     // Reached source file or module block
-                    if (parent_21.kind === 261 /* SourceFile */ || parent_21.kind === 231 /* ModuleBlock */) {
+                    if (parent_20.kind === 261 /* SourceFile */ || parent_20.kind === 231 /* ModuleBlock */) {
                         return false;
                     }
                 }
@@ -74054,7 +74746,7 @@ var ts;
             function RuleOperationContext() {
                 var funcs = [];
                 for (var _i = 0; _i < arguments.length; _i++) {
-                    funcs[_i - 0] = arguments[_i];
+                    funcs[_i] = arguments[_i];
                 }
                 this.customContextChecks = funcs;
             }
@@ -74325,9 +75017,9 @@ var ts;
             }
             Rules.prototype.getRuleName = function (rule) {
                 var o = this;
-                for (var name_47 in o) {
-                    if (o[name_47] === rule) {
-                        return name_47;
+                for (var name_48 in o) {
+                    if (o[name_48] === rule) {
+                        return name_48;
                     }
                 }
                 throw new Error("Unknown rule");
@@ -75715,11 +76407,23 @@ var ts;
                 else {
                     var tokenStart = sourceFile.getLineAndCharacterOfPosition(pos);
                     var startLinePosition = ts.getStartPositionOfLine(tokenStart.line, sourceFile);
-                    if (indentation !== tokenStart.character || indentationIsDifferent(indentationString, startLinePosition)) {
+                    if (indentation !== characterToColumn(startLinePosition, tokenStart.character) || indentationIsDifferent(indentationString, startLinePosition)) {
                         recordReplace(startLinePosition, tokenStart.character, indentationString);
                     }
                 }
             }
+            function characterToColumn(startLinePosition, characterInLine) {
+                var column = 0;
+                for (var i = 0; i < characterInLine; i++) {
+                    if (sourceFile.text.charCodeAt(startLinePosition + i) === 9 /* tab */) {
+                        column += options.tabSize - column % options.tabSize;
+                    }
+                    else {
+                        column++;
+                    }
+                }
+                return column;
+            }
             function indentationIsDifferent(indentationString, startLinePosition) {
                 return indentationString !== sourceFile.text.substr(startLinePosition, indentationString.length);
             }
@@ -76508,7 +77212,666 @@ var ts;
         });
     })(codefix = ts.codefix || (ts.codefix = {}));
 })(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        var ModuleSpecifierComparison;
+        (function (ModuleSpecifierComparison) {
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Better"] = 0] = "Better";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Equal"] = 1] = "Equal";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Worse"] = 2] = "Worse";
+        })(ModuleSpecifierComparison || (ModuleSpecifierComparison = {}));
+        var ImportCodeActionMap = (function () {
+            function ImportCodeActionMap() {
+                this.symbolIdToActionMap = ts.createMap();
+            }
+            ImportCodeActionMap.prototype.addAction = function (symbolId, newAction) {
+                if (!newAction) {
+                    return;
+                }
+                if (!this.symbolIdToActionMap[symbolId]) {
+                    this.symbolIdToActionMap[symbolId] = [newAction];
+                    return;
+                }
+                if (newAction.kind === "CodeChange") {
+                    this.symbolIdToActionMap[symbolId].push(newAction);
+                    return;
+                }
+                var updatedNewImports = [];
+                for (var _i = 0, _a = this.symbolIdToActionMap[symbolId]; _i < _a.length; _i++) {
+                    var existingAction = _a[_i];
+                    if (existingAction.kind === "CodeChange") {
+                        // only import actions should compare
+                        updatedNewImports.push(existingAction);
+                        continue;
+                    }
+                    switch (this.compareModuleSpecifiers(existingAction.moduleSpecifier, newAction.moduleSpecifier)) {
+                        case ModuleSpecifierComparison.Better:
+                            // the new one is not worth considering if it is a new improt.
+                            // However if it is instead a insertion into existing import, the user might want to use
+                            // the module specifier even it is worse by our standards. So keep it.
+                            if (newAction.kind === "NewImport") {
+                                return;
+                            }
+                        case ModuleSpecifierComparison.Equal:
+                            // the current one is safe. But it is still possible that the new one is worse
+                            // than another existing one. For example, you may have new imports from "./foo/bar"
+                            // and "bar", when the new one is "bar/bar2" and the current one is "./foo/bar". The new
+                            // one and the current one are not comparable (one relative path and one absolute path),
+                            // but the new one is worse than the other one, so should not add to the list.
+                            updatedNewImports.push(existingAction);
+                            break;
+                        case ModuleSpecifierComparison.Worse:
+                            // the existing one is worse, remove from the list.
+                            continue;
+                    }
+                }
+                // if we reach here, it means the new one is better or equal to all of the existing ones.
+                updatedNewImports.push(newAction);
+                this.symbolIdToActionMap[symbolId] = updatedNewImports;
+            };
+            ImportCodeActionMap.prototype.addActions = function (symbolId, newActions) {
+                for (var _i = 0, newActions_1 = newActions; _i < newActions_1.length; _i++) {
+                    var newAction = newActions_1[_i];
+                    this.addAction(symbolId, newAction);
+                }
+            };
+            ImportCodeActionMap.prototype.getAllActions = function () {
+                var result = [];
+                for (var symbolId in this.symbolIdToActionMap) {
+                    result = ts.concatenate(result, this.symbolIdToActionMap[symbolId]);
+                }
+                return result;
+            };
+            ImportCodeActionMap.prototype.compareModuleSpecifiers = function (moduleSpecifier1, moduleSpecifier2) {
+                if (moduleSpecifier1 === moduleSpecifier2) {
+                    return ModuleSpecifierComparison.Equal;
+                }
+                // if moduleSpecifier1 (ms1) is a substring of ms2, then it is better
+                if (moduleSpecifier2.indexOf(moduleSpecifier1) === 0) {
+                    return ModuleSpecifierComparison.Better;
+                }
+                if (moduleSpecifier1.indexOf(moduleSpecifier2) === 0) {
+                    return ModuleSpecifierComparison.Worse;
+                }
+                // if both are relative paths, and ms1 has fewer levels, then it is better
+                if (ts.isExternalModuleNameRelative(moduleSpecifier1) && ts.isExternalModuleNameRelative(moduleSpecifier2)) {
+                    var regex = new RegExp(ts.directorySeparator, "g");
+                    var moduleSpecifier1LevelCount = (moduleSpecifier1.match(regex) || []).length;
+                    var moduleSpecifier2LevelCount = (moduleSpecifier2.match(regex) || []).length;
+                    return moduleSpecifier1LevelCount < moduleSpecifier2LevelCount
+                        ? ModuleSpecifierComparison.Better
+                        : moduleSpecifier1LevelCount === moduleSpecifier2LevelCount
+                            ? ModuleSpecifierComparison.Equal
+                            : ModuleSpecifierComparison.Worse;
+                }
+                // the equal cases include when the two specifiers are not comparable.
+                return ModuleSpecifierComparison.Equal;
+            };
+            return ImportCodeActionMap;
+        }());
+        codefix.registerCodeFix({
+            errorCodes: [ts.Diagnostics.Cannot_find_name_0.code],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var checker = context.program.getTypeChecker();
+                var allSourceFiles = context.program.getSourceFiles();
+                var useCaseSensitiveFileNames = context.host.useCaseSensitiveFileNames ? context.host.useCaseSensitiveFileNames() : false;
+                var token = ts.getTokenAtPosition(sourceFile, context.span.start);
+                var name = token.getText();
+                var symbolIdActionMap = new ImportCodeActionMap();
+                // this is a module id -> module import declaration map
+                var cachedImportDeclarations = ts.createMap();
+                var cachedNewImportInsertPosition;
+                var allPotentialModules = checker.getAmbientModules();
+                for (var _i = 0, allSourceFiles_1 = allSourceFiles; _i < allSourceFiles_1.length; _i++) {
+                    var otherSourceFile = allSourceFiles_1[_i];
+                    if (otherSourceFile !== sourceFile && ts.isExternalOrCommonJsModule(otherSourceFile)) {
+                        allPotentialModules.push(otherSourceFile.symbol);
+                    }
+                }
+                var currentTokenMeaning = ts.getMeaningFromLocation(token);
+                for (var _a = 0, allPotentialModules_1 = allPotentialModules; _a < allPotentialModules_1.length; _a++) {
+                    var moduleSymbol = allPotentialModules_1[_a];
+                    context.cancellationToken.throwIfCancellationRequested();
+                    // check the default export
+                    var defaultExport = checker.tryGetMemberInModuleExports("default", moduleSymbol);
+                    if (defaultExport) {
+                        var localSymbol = ts.getLocalSymbolForExportDefault(defaultExport);
+                        if (localSymbol && localSymbol.name === name && checkSymbolHasMeaning(localSymbol, currentTokenMeaning)) {
+                            // check if this symbol is already used
+                            var symbolId = getUniqueSymbolId(localSymbol);
+                            symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol, /*isDefault*/ true));
+                        }
+                    }
+                    // check exports with the same name
+                    var exportSymbolWithIdenticalName = checker.tryGetMemberInModuleExports(name, moduleSymbol);
+                    if (exportSymbolWithIdenticalName && checkSymbolHasMeaning(exportSymbolWithIdenticalName, currentTokenMeaning)) {
+                        var symbolId = getUniqueSymbolId(exportSymbolWithIdenticalName);
+                        symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol));
+                    }
+                }
+                return symbolIdActionMap.getAllActions();
+                function getImportDeclarations(moduleSymbol) {
+                    var moduleSymbolId = getUniqueSymbolId(moduleSymbol);
+                    if (cachedImportDeclarations[moduleSymbolId]) {
+                        return cachedImportDeclarations[moduleSymbolId];
+                    }
+                    var existingDeclarations = [];
+                    for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                        var importModuleSpecifier = _a[_i];
+                        var importSymbol = checker.getSymbolAtLocation(importModuleSpecifier);
+                        if (importSymbol === moduleSymbol) {
+                            existingDeclarations.push(getImportDeclaration(importModuleSpecifier));
+                        }
+                    }
+                    cachedImportDeclarations[moduleSymbolId] = existingDeclarations;
+                    return existingDeclarations;
+                    function getImportDeclaration(moduleSpecifier) {
+                        var node = moduleSpecifier;
+                        while (node) {
+                            if (node.kind === 235 /* ImportDeclaration */) {
+                                return node;
+                            }
+                            if (node.kind === 234 /* ImportEqualsDeclaration */) {
+                                return node;
+                            }
+                            node = node.parent;
+                        }
+                        return undefined;
+                    }
+                }
+                function getUniqueSymbolId(symbol) {
+                    if (symbol.flags & 8388608 /* Alias */) {
+                        return ts.getSymbolId(checker.getAliasedSymbol(symbol));
+                    }
+                    return ts.getSymbolId(symbol);
+                }
+                function checkSymbolHasMeaning(symbol, meaning) {
+                    var declarations = symbol.getDeclarations();
+                    return declarations ? ts.some(symbol.declarations, function (decl) { return !!(ts.getMeaningFromDeclaration(decl) & meaning); }) : false;
+                }
+                function getCodeActionForImport(moduleSymbol, isDefault) {
+                    var existingDeclarations = getImportDeclarations(moduleSymbol);
+                    if (existingDeclarations.length > 0) {
+                        // With an existing import statement, there are more than one actions the user can do.
+                        return getCodeActionsForExistingImport(existingDeclarations);
+                    }
+                    else {
+                        return [getCodeActionForNewImport()];
+                    }
+                    function getCodeActionsForExistingImport(declarations) {
+                        var actions = [];
+                        // It is possible that multiple import statements with the same specifier exist in the file.
+                        // e.g.
+                        //
+                        //     import * as ns from "foo";
+                        //     import { member1, member2 } from "foo";
+                        //
+                        //     member3/**/ <-- cusor here
+                        //
+                        // in this case we should provie 2 actions:
+                        //     1. change "member3" to "ns.member3"
+                        //     2. add "member3" to the second import statement's import list
+                        // and it is up to the user to decide which one fits best.
+                        var namespaceImportDeclaration;
+                        var namedImportDeclaration;
+                        var existingModuleSpecifier;
+                        for (var _i = 0, declarations_11 = declarations; _i < declarations_11.length; _i++) {
+                            var declaration = declarations_11[_i];
+                            if (declaration.kind === 235 /* ImportDeclaration */) {
+                                var namedBindings = declaration.importClause && declaration.importClause.namedBindings;
+                                if (namedBindings && namedBindings.kind === 237 /* NamespaceImport */) {
+                                    // case:
+                                    // import * as ns from "foo"
+                                    namespaceImportDeclaration = declaration;
+                                }
+                                else {
+                                    // cases:
+                                    // import default from "foo"
+                                    // import { bar } from "foo" or combination with the first one
+                                    // import "foo"
+                                    namedImportDeclaration = declaration;
+                                }
+                                existingModuleSpecifier = declaration.moduleSpecifier.getText();
+                            }
+                            else {
+                                // case:
+                                // import foo = require("foo")
+                                namespaceImportDeclaration = declaration;
+                                existingModuleSpecifier = getModuleSpecifierFromImportEqualsDeclaration(declaration);
+                            }
+                        }
+                        if (namespaceImportDeclaration) {
+                            actions.push(getCodeActionForNamespaceImport(namespaceImportDeclaration));
+                        }
+                        if (namedImportDeclaration && namedImportDeclaration.importClause &&
+                            (namedImportDeclaration.importClause.name || namedImportDeclaration.importClause.namedBindings)) {
+                            /**
+                             * If the existing import declaration already has a named import list, just
+                             * insert the identifier into that list.
+                             */
+                            var textChange = getTextChangeForImportClause(namedImportDeclaration.importClause);
+                            var moduleSpecifierWithoutQuotes = ts.stripQuotes(namedImportDeclaration.moduleSpecifier.getText());
+                            actions.push(createCodeAction(ts.Diagnostics.Add_0_to_existing_import_declaration_from_1, [name, moduleSpecifierWithoutQuotes], textChange.newText, textChange.span, sourceFile.fileName, "InsertingIntoExistingImport", moduleSpecifierWithoutQuotes));
+                        }
+                        else {
+                            // we need to create a new import statement, but the existing module specifier can be reused.
+                            actions.push(getCodeActionForNewImport(existingModuleSpecifier));
+                        }
+                        return actions;
+                        function getModuleSpecifierFromImportEqualsDeclaration(declaration) {
+                            if (declaration.moduleReference && declaration.moduleReference.kind === 245 /* ExternalModuleReference */) {
+                                return declaration.moduleReference.expression.getText();
+                            }
+                            return declaration.moduleReference.getText();
+                        }
+                        function getTextChangeForImportClause(importClause) {
+                            var newImportText = isDefault ? "default as " + name : name;
+                            var importList = importClause.namedBindings;
+                            // case 1:
+                            // original text: import default from "module"
+                            // change to: import default, { name } from "module"
+                            if (!importList && importClause.name) {
+                                var start = importClause.name.getEnd();
+                                return {
+                                    newText: ", { " + newImportText + " }",
+                                    span: { start: start, length: 0 }
+                                };
+                            }
+                            // case 2:
+                            // original text: import {} from "module"
+                            // change to: import { name } from "module"
+                            if (importList.elements.length === 0) {
+                                var start = importList.getStart();
+                                return {
+                                    newText: "{ " + newImportText + " }",
+                                    span: { start: start, length: importList.getEnd() - start }
+                                };
+                            }
+                            // case 3:
+                            // original text: import { foo, bar } from "module"
+                            // change to: import { foo, bar, name } from "module"
+                            var insertPoint = importList.elements[importList.elements.length - 1].getEnd();
+                            /**
+                             * If the import list has one import per line, preserve that. Otherwise, insert on same line as last element
+                             *     import {
+                             *         foo
+                             *     } from "./module";
+                             */
+                            var startLine = ts.getLineOfLocalPosition(sourceFile, importList.getStart());
+                            var endLine = ts.getLineOfLocalPosition(sourceFile, importList.getEnd());
+                            var oneImportPerLine = endLine - startLine > importList.elements.length;
+                            return {
+                                newText: "," + (oneImportPerLine ? context.newLineCharacter : " ") + newImportText,
+                                span: { start: insertPoint, length: 0 }
+                            };
+                        }
+                        function getCodeActionForNamespaceImport(declaration) {
+                            var namespacePrefix;
+                            if (declaration.kind === 235 /* ImportDeclaration */) {
+                                namespacePrefix = declaration.importClause.namedBindings.name.getText();
+                            }
+                            else {
+                                namespacePrefix = declaration.name.getText();
+                            }
+                            namespacePrefix = ts.stripQuotes(namespacePrefix);
+                            /**
+                             * Cases:
+                             *     import * as ns from "mod"
+                             *     import default, * as ns from "mod"
+                             *     import ns = require("mod")
+                             *
+                             * Because there is no import list, we alter the reference to include the
+                             * namespace instead of altering the import declaration. For example, "foo" would
+                             * become "ns.foo"
+                             */
+                            return createCodeAction(ts.Diagnostics.Change_0_to_1, [name, namespacePrefix + "." + name], namespacePrefix + ".", { start: token.getStart(), length: 0 }, sourceFile.fileName, "CodeChange");
+                        }
+                    }
+                    function getCodeActionForNewImport(moduleSpecifier) {
+                        if (!cachedNewImportInsertPosition) {
+                            // insert after any existing imports
+                            var lastModuleSpecifierEnd = -1;
+                            for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                                var moduleSpecifier_1 = _a[_i];
+                                var end = moduleSpecifier_1.getEnd();
+                                if (!lastModuleSpecifierEnd || end > lastModuleSpecifierEnd) {
+                                    lastModuleSpecifierEnd = end;
+                                }
+                            }
+                            cachedNewImportInsertPosition = lastModuleSpecifierEnd > 0 ? sourceFile.getLineEndOfPosition(lastModuleSpecifierEnd) : sourceFile.getStart();
+                        }
+                        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+                        var moduleSpecifierWithoutQuotes = ts.stripQuotes(moduleSpecifier || getModuleSpecifierForNewImport());
+                        var importStatementText = isDefault
+                            ? "import " + name + " from \"" + moduleSpecifierWithoutQuotes + "\""
+                            : "import { " + name + " } from \"" + moduleSpecifierWithoutQuotes + "\"";
+                        // if this file doesn't have any import statements, insert an import statement and then insert a new line
+                        // between the only import statement and user code. Otherwise just insert the statement because chances
+                        // are there are already a new line seperating code and import statements.
+                        var newText = cachedNewImportInsertPosition === sourceFile.getStart()
+                            ? importStatementText + ";" + context.newLineCharacter + context.newLineCharacter
+                            : "" + context.newLineCharacter + importStatementText + ";";
+                        return createCodeAction(ts.Diagnostics.Import_0_from_1, [name, "\"" + moduleSpecifierWithoutQuotes + "\""], newText, { start: cachedNewImportInsertPosition, length: 0 }, sourceFile.fileName, "NewImport", moduleSpecifierWithoutQuotes);
+                        function getModuleSpecifierForNewImport() {
+                            var fileName = sourceFile.path;
+                            var moduleFileName = moduleSymbol.valueDeclaration.getSourceFile().path;
+                            var sourceDirectory = ts.getDirectoryPath(fileName);
+                            var options = context.program.getCompilerOptions();
+                            return tryGetModuleNameFromAmbientModule() ||
+                                tryGetModuleNameFromBaseUrl() ||
+                                tryGetModuleNameFromRootDirs() ||
+                                tryGetModuleNameFromTypeRoots() ||
+                                tryGetModuleNameAsNodeModule() ||
+                                ts.removeFileExtension(getRelativePath(moduleFileName, sourceDirectory));
+                            function tryGetModuleNameFromAmbientModule() {
+                                if (moduleSymbol.valueDeclaration.kind !== 261 /* SourceFile */) {
+                                    return moduleSymbol.name;
+                                }
+                            }
+                            function tryGetModuleNameFromBaseUrl() {
+                                if (!options.baseUrl) {
+                                    return undefined;
+                                }
+                                var normalizedBaseUrl = ts.toPath(options.baseUrl, ts.getDirectoryPath(options.baseUrl), getCanonicalFileName);
+                                var relativeName = tryRemoveParentDirectoryName(moduleFileName, normalizedBaseUrl);
+                                if (!relativeName) {
+                                    return undefined;
+                                }
+                                relativeName = removeExtensionAndIndexPostFix(relativeName);
+                                if (options.paths) {
+                                    for (var key in options.paths) {
+                                        for (var _i = 0, _a = options.paths[key]; _i < _a.length; _i++) {
+                                            var pattern = _a[_i];
+                                            var indexOfStar = pattern.indexOf("*");
+                                            if (indexOfStar === 0 && pattern.length === 1) {
+                                                continue;
+                                            }
+                                            else if (indexOfStar !== -1) {
+                                                var prefix = pattern.substr(0, indexOfStar);
+                                                var suffix = pattern.substr(indexOfStar + 1);
+                                                if (relativeName.length >= prefix.length + suffix.length &&
+                                                    ts.startsWith(relativeName, prefix) &&
+                                                    ts.endsWith(relativeName, suffix)) {
+                                                    var matchedStar = relativeName.substr(prefix.length, relativeName.length - suffix.length);
+                                                    return key.replace("\*", matchedStar);
+                                                }
+                                            }
+                                            else if (pattern === relativeName) {
+                                                return key;
+                                            }
+                                        }
+                                    }
+                                }
+                                return relativeName;
+                            }
+                            function tryGetModuleNameFromRootDirs() {
+                                if (options.rootDirs) {
+                                    var normalizedRootDirs = ts.map(options.rootDirs, function (rootDir) { return ts.toPath(rootDir, /*basePath*/ undefined, getCanonicalFileName); });
+                                    var normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, normalizedRootDirs);
+                                    var normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, normalizedRootDirs);
+                                    if (normalizedTargetPath !== undefined) {
+                                        var relativePath = normalizedSourcePath !== undefined ? getRelativePath(normalizedTargetPath, normalizedSourcePath) : normalizedTargetPath;
+                                        return ts.removeFileExtension(relativePath);
+                                    }
+                                }
+                                return undefined;
+                            }
+                            function tryGetModuleNameFromTypeRoots() {
+                                var typeRoots = ts.getEffectiveTypeRoots(options, context.host);
+                                if (typeRoots) {
+                                    var normalizedTypeRoots = ts.map(typeRoots, function (typeRoot) { return ts.toPath(typeRoot, /*basePath*/ undefined, getCanonicalFileName); });
+                                    for (var _i = 0, normalizedTypeRoots_1 = normalizedTypeRoots; _i < normalizedTypeRoots_1.length; _i++) {
+                                        var typeRoot = normalizedTypeRoots_1[_i];
+                                        if (ts.startsWith(moduleFileName, typeRoot)) {
+                                            var relativeFileName = moduleFileName.substring(typeRoot.length + 1);
+                                            return removeExtensionAndIndexPostFix(relativeFileName);
+                                        }
+                                    }
+                                }
+                            }
+                            function tryGetModuleNameAsNodeModule() {
+                                if (ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs) {
+                                    // nothing to do here
+                                    return undefined;
+                                }
+                                var indexOfNodeModules = moduleFileName.indexOf("node_modules");
+                                if (indexOfNodeModules < 0) {
+                                    return undefined;
+                                }
+                                var relativeFileName;
+                                if (sourceDirectory.indexOf(moduleFileName.substring(0, indexOfNodeModules - 1)) === 0) {
+                                    // if node_modules folder is in this folder or any of its parent folder, no need to keep it.
+                                    relativeFileName = moduleFileName.substring(indexOfNodeModules + 13 /* "node_modules\".length */);
+                                }
+                                else {
+                                    relativeFileName = getRelativePath(moduleFileName, sourceDirectory);
+                                }
+                                relativeFileName = ts.removeFileExtension(relativeFileName);
+                                if (ts.endsWith(relativeFileName, "/index")) {
+                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                }
+                                else {
+                                    try {
+                                        var moduleDirectory = ts.getDirectoryPath(moduleFileName);
+                                        var packageJsonContent = JSON.parse(context.host.readFile(ts.combinePaths(moduleDirectory, "package.json")));
+                                        if (packageJsonContent) {
+                                            var mainFile = packageJsonContent.main || packageJsonContent.typings;
+                                            if (mainFile) {
+                                                var mainExportFile = ts.toPath(mainFile, moduleDirectory, getCanonicalFileName);
+                                                if (ts.removeFileExtension(mainExportFile) === ts.removeFileExtension(moduleFileName)) {
+                                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                                }
+                                            }
+                                        }
+                                    }
+                                    catch (e) { }
+                                }
+                                return relativeFileName;
+                            }
+                        }
+                        function getPathRelativeToRootDirs(path, rootDirs) {
+                            for (var _i = 0, rootDirs_2 = rootDirs; _i < rootDirs_2.length; _i++) {
+                                var rootDir = rootDirs_2[_i];
+                                var relativeName = tryRemoveParentDirectoryName(path, rootDir);
+                                if (relativeName !== undefined) {
+                                    return relativeName;
+                                }
+                            }
+                            return undefined;
+                        }
+                        function removeExtensionAndIndexPostFix(fileName) {
+                            fileName = ts.removeFileExtension(fileName);
+                            if (ts.endsWith(fileName, "/index")) {
+                                fileName = fileName.substr(0, fileName.length - 6 /* "/index".length */);
+                            }
+                            return fileName;
+                        }
+                        function getRelativePath(path, directoryPath) {
+                            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, false);
+                            return ts.moduleHasNonRelativeName(relativePath) ? "./" + relativePath : relativePath;
+                        }
+                        function tryRemoveParentDirectoryName(path, parentDirectory) {
+                            var index = path.indexOf(parentDirectory);
+                            if (index === 0) {
+                                return ts.endsWith(parentDirectory, ts.directorySeparator)
+                                    ? path.substring(parentDirectory.length)
+                                    : path.substring(parentDirectory.length + 1);
+                            }
+                            return undefined;
+                        }
+                    }
+                }
+                function createCodeAction(description, diagnosticArgs, newText, span, fileName, kind, moduleSpecifier) {
+                    return {
+                        description: ts.formatMessage.apply(undefined, [undefined, description].concat(diagnosticArgs)),
+                        changes: [{ fileName: fileName, textChanges: [{ newText: newText, span: span }] }],
+                        kind: kind,
+                        moduleSpecifier: moduleSpecifier
+                    };
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        codefix.registerCodeFix({
+            errorCodes: [
+                ts.Diagnostics._0_is_declared_but_never_used.code,
+                ts.Diagnostics.Property_0_is_declared_but_never_used.code
+            ],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var start = context.span.start;
+                var token = ts.getTokenAtPosition(sourceFile, start);
+                // this handles var ["computed"] = 12;
+                if (token.kind === 20 /* OpenBracketToken */) {
+                    token = ts.getTokenAtPosition(sourceFile, start + 1);
+                }
+                switch (token.kind) {
+                    case 70 /* Identifier */:
+                        switch (token.parent.kind) {
+                            case 223 /* VariableDeclaration */:
+                                switch (token.parent.parent.parent.kind) {
+                                    case 211 /* ForStatement */:
+                                        var forStatement = token.parent.parent.parent;
+                                        var forInitializer = forStatement.initializer;
+                                        if (forInitializer.declarations.length === 1) {
+                                            return createCodeFix("", forInitializer.pos, forInitializer.end - forInitializer.pos);
+                                        }
+                                        else {
+                                            return removeSingleItem(forInitializer.declarations, token);
+                                        }
+                                    case 213 /* ForOfStatement */:
+                                        var forOfStatement = token.parent.parent.parent;
+                                        if (forOfStatement.initializer.kind === 224 /* VariableDeclarationList */) {
+                                            var forOfInitializer = forOfStatement.initializer;
+                                            return createCodeFix("{}", forOfInitializer.declarations[0].pos, forOfInitializer.declarations[0].end - forOfInitializer.declarations[0].pos);
+                                        }
+                                        break;
+                                    case 212 /* ForInStatement */:
+                                        // There is no valid fix in the case of:
+                                        //  for .. in
+                                        return undefined;
+                                    case 256 /* CatchClause */:
+                                        var catchClause = token.parent.parent;
+                                        var parameter = catchClause.variableDeclaration.getChildren()[0];
+                                        return createCodeFix("", parameter.pos, parameter.end - parameter.pos);
+                                    default:
+                                        var variableStatement = token.parent.parent.parent;
+                                        if (variableStatement.declarationList.declarations.length === 1) {
+                                            return createCodeFix("", variableStatement.pos, variableStatement.end - variableStatement.pos);
+                                        }
+                                        else {
+                                            var declarations = variableStatement.declarationList.declarations;
+                                            return removeSingleItem(declarations, token);
+                                        }
+                                }
+                            case 143 /* TypeParameter */:
+                                var typeParameters = token.parent.parent.typeParameters;
+                                if (typeParameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 2);
+                                }
+                                else {
+                                    return removeSingleItem(typeParameters, token);
+                                }
+                            case 144 /* Parameter */:
+                                var functionDeclaration = token.parent.parent;
+                                if (functionDeclaration.parameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                                }
+                                else {
+                                    return removeSingleItem(functionDeclaration.parameters, token);
+                                }
+                            // handle case where 'import a = A;'
+                            case 234 /* ImportEqualsDeclaration */:
+                                var importEquals = findImportDeclaration(token);
+                                return createCodeFix("", importEquals.pos, importEquals.end - importEquals.pos);
+                            case 239 /* ImportSpecifier */:
+                                var namedImports = token.parent.parent;
+                                if (namedImports.elements.length === 1) {
+                                    // Only 1 import and it is unused. So the entire declaration should be removed.
+                                    var importSpec = findImportDeclaration(token);
+                                    return createCodeFix("", importSpec.pos, importSpec.end - importSpec.pos);
+                                }
+                                else {
+                                    return removeSingleItem(namedImports.elements, token);
+                                }
+                            // handle case where "import d, * as ns from './file'" 
+                            // or "'import {a, b as ns} from './file'"
+                            case 236 /* ImportClause */:
+                                var importClause = token.parent;
+                                if (!importClause.namedBindings) {
+                                    var importDecl = findImportDeclaration(importClause);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    return createCodeFix("", importClause.name.pos, importClause.namedBindings.pos - importClause.name.pos);
+                                }
+                            case 237 /* NamespaceImport */:
+                                var namespaceImport = token.parent;
+                                if (namespaceImport.name == token && !namespaceImport.parent.name) {
+                                    var importDecl = findImportDeclaration(namespaceImport);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    var start_4 = namespaceImport.parent.name.end;
+                                    return createCodeFix("", start_4, namespaceImport.parent.namedBindings.end - start_4);
+                                }
+                        }
+                        break;
+                    case 147 /* PropertyDeclaration */:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                    case 237 /* NamespaceImport */:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                if (ts.isDeclarationName(token)) {
+                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                else if (ts.isLiteralComputedPropertyDeclarationName(token)) {
+                    return createCodeFix("", token.parent.parent.pos, token.parent.parent.end - token.parent.parent.pos);
+                }
+                else {
+                    return undefined;
+                }
+                function findImportDeclaration(token) {
+                    var importDecl = token;
+                    while (importDecl.kind != 235 /* ImportDeclaration */ && importDecl.parent) {
+                        importDecl = importDecl.parent;
+                    }
+                    return importDecl;
+                }
+                function createCodeFix(newText, start, length) {
+                    return [{
+                            description: ts.getLocaleSpecificMessage(ts.Diagnostics.Remove_unused_identifiers),
+                            changes: [{
+                                    fileName: sourceFile.fileName,
+                                    textChanges: [{ newText: newText, span: { start: start, length: length } }]
+                                }]
+                        }];
+                }
+                function removeSingleItem(elements, token) {
+                    if (elements[0] === token.parent) {
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos + 1);
+                    }
+                    else {
+                        return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 1);
+                    }
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
 ///<reference path='superFixes.ts' />
+///<reference path='importFixes.ts' />
+///<reference path='unusedIdentifierFixes.ts' />
 /// <reference path="..\compiler\program.ts"/>
 /// <reference path="..\compiler\commandLineParser.ts"/>
 /// <reference path='types.ts' />
@@ -76599,11 +77962,11 @@ var ts;
             return pos;
         };
         NodeObject.prototype.createSyntaxList = function (nodes) {
-            var list = createNode(291 /* SyntaxList */, nodes.pos, nodes.end, this);
+            var list = createNode(292 /* SyntaxList */, nodes.pos, nodes.end, this);
             list._children = [];
             var pos = nodes.pos;
-            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
-                var node = nodes_5[_i];
+            for (var _i = 0, nodes_7 = nodes; _i < nodes_7.length; _i++) {
+                var node = nodes_7[_i];
                 if (pos < node.pos) {
                     pos = this.addSyntheticNodes(list._children, pos, node.pos);
                 }
@@ -76622,7 +77985,7 @@ var ts;
                 ts.scanner.setText((sourceFile || this.getSourceFile()).text);
                 children = [];
                 var pos_3 = this.pos;
-                var useJSDocScanner_1 = this.kind >= 278 /* FirstJSDocTagNode */ && this.kind <= 290 /* LastJSDocTagNode */;
+                var useJSDocScanner_1 = this.kind >= 278 /* FirstJSDocTagNode */ && this.kind <= 291 /* LastJSDocTagNode */;
                 var processNode = function (node) {
                     var isJSDocTagNode = ts.isJSDocTag(node);
                     if (!isJSDocTagNode && pos_3 < node.pos) {
@@ -76641,8 +78004,8 @@ var ts;
                     pos_3 = nodes.end;
                 };
                 // jsDocComments need to be the first children
-                if (this.jsDocComments) {
-                    for (var _i = 0, _a = this.jsDocComments; _i < _a.length; _i++) {
+                if (this.jsDoc) {
+                    for (var _i = 0, _a = this.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         processNode(jsDocComment);
                     }
@@ -76866,6 +78229,20 @@ var ts;
         SourceFileObject.prototype.getPositionOfLineAndCharacter = function (line, character) {
             return ts.getPositionOfLineAndCharacter(this, line, character);
         };
+        SourceFileObject.prototype.getLineEndOfPosition = function (pos) {
+            var line = this.getLineAndCharacterOfPosition(pos).line;
+            var lineStarts = this.getLineStarts();
+            var lastCharPos;
+            if (line + 1 >= lineStarts.length) {
+                lastCharPos = this.getEnd();
+            }
+            if (!lastCharPos) {
+                lastCharPos = lineStarts[line + 1] - 1;
+            }
+            var fullText = this.getFullText();
+            // if the new line is "\r\n", we should return the last non-new-line-character position
+            return fullText[lastCharPos] === "\n" && fullText[lastCharPos - 1] === "\r" ? lastCharPos - 1 : lastCharPos;
+        };
         SourceFileObject.prototype.getNamedDeclarations = function () {
             if (!this.namedDeclarations) {
                 this.namedDeclarations = this.computeNamedDeclarations();
@@ -76887,9 +78264,9 @@ var ts;
             }
             function getDeclarationName(declaration) {
                 if (declaration.name) {
-                    var result_6 = getTextOfIdentifierOrLiteral(declaration.name);
-                    if (result_6 !== undefined) {
-                        return result_6;
+                    var result_7 = getTextOfIdentifierOrLiteral(declaration.name);
+                    if (result_7 !== undefined) {
+                        return result_7;
                     }
                     if (declaration.name.kind === 142 /* ComputedPropertyName */) {
                         var expr = declaration.name.expression;
@@ -77845,7 +79222,9 @@ var ts;
                     sourceFile: sourceFile,
                     span: span,
                     program: program,
-                    newLineCharacter: newLineChar
+                    newLineCharacter: newLineChar,
+                    host: host,
+                    cancellationToken: cancellationToken
                 };
                 var fixes = ts.codefix.getFixes(context);
                 if (fixes) {
@@ -78087,10 +79466,10 @@ var ts;
                     break;
                 default:
                     ts.forEachChild(node, walk);
-                    if (node.jsDocComments) {
-                        for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            ts.forEachChild(jsDocComment, walk);
+                    if (node.jsDoc) {
+                        for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            ts.forEachChild(jsDoc, walk);
                         }
                     }
             }
@@ -79416,7 +80795,7 @@ var ts;
                 if (result.error) {
                     return {
                         options: {},
-                        typingOptions: {},
+                        typeAcquisition: {},
                         files: [],
                         raw: {},
                         errors: [realizeDiagnostic(result.error, "\r\n")]
@@ -79426,7 +80805,7 @@ var ts;
                 var configFile = ts.parseJsonConfigFileContent(result.config, _this.host, ts.getDirectoryPath(normalizedFileName), /*existingOptions*/ {}, normalizedFileName);
                 return {
                     options: configFile.options,
-                    typingOptions: configFile.typingOptions,
+                    typeAcquisition: configFile.typeAcquisition,
                     files: configFile.fileNames,
                     raw: configFile.raw,
                     errors: realizeDiagnostics(configFile.errors, "\r\n")
@@ -79441,7 +80820,7 @@ var ts;
             var getCanonicalFileName = ts.createGetCanonicalFileName(/*useCaseSensitivefileNames:*/ false);
             return this.forwardJSONCall("discoverTypings()", function () {
                 var info = JSON.parse(discoverTypingsJson);
-                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typingOptions, info.unresolvedImports);
+                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typeAcquisition, info.unresolvedImports);
             });
         };
         return CoreServicesShimObject;
diff --git a/node_modules/typescript/lib/typescriptServices.d.ts b/node_modules/typescript/lib/typescriptServices.d.ts
index 1bfe70d03..ecd018623 100644
--- a/node_modules/typescript/lib/typescriptServices.d.ts
+++ b/node_modules/typescript/lib/typescriptServices.d.ts
@@ -317,23 +317,25 @@ declare namespace ts {
         JSDocThisType = 277,
         JSDocComment = 278,
         JSDocTag = 279,
-        JSDocParameterTag = 280,
-        JSDocReturnTag = 281,
-        JSDocTypeTag = 282,
-        JSDocTemplateTag = 283,
-        JSDocTypedefTag = 284,
-        JSDocPropertyTag = 285,
-        JSDocTypeLiteral = 286,
-        JSDocLiteralType = 287,
-        JSDocNullKeyword = 288,
-        JSDocUndefinedKeyword = 289,
-        JSDocNeverKeyword = 290,
-        SyntaxList = 291,
-        NotEmittedStatement = 292,
-        PartiallyEmittedExpression = 293,
-        MergeDeclarationMarker = 294,
-        EndOfDeclarationMarker = 295,
-        Count = 296,
+        JSDocAugmentsTag = 280,
+        JSDocParameterTag = 281,
+        JSDocReturnTag = 282,
+        JSDocTypeTag = 283,
+        JSDocTemplateTag = 284,
+        JSDocTypedefTag = 285,
+        JSDocPropertyTag = 286,
+        JSDocTypeLiteral = 287,
+        JSDocLiteralType = 288,
+        JSDocNullKeyword = 289,
+        JSDocUndefinedKeyword = 290,
+        JSDocNeverKeyword = 291,
+        SyntaxList = 292,
+        NotEmittedStatement = 293,
+        PartiallyEmittedExpression = 294,
+        MergeDeclarationMarker = 295,
+        EndOfDeclarationMarker = 296,
+        RawExpression = 297,
+        Count = 298,
         FirstAssignment = 57,
         LastAssignment = 69,
         FirstCompoundAssignment = 58,
@@ -360,9 +362,9 @@ declare namespace ts {
         LastBinaryOperator = 69,
         FirstNode = 141,
         FirstJSDocNode = 262,
-        LastJSDocNode = 287,
+        LastJSDocNode = 288,
         FirstJSDocTagNode = 278,
-        LastJSDocTagNode = 290,
+        LastJSDocTagNode = 291,
     }
     enum NodeFlags {
         None = 0,
@@ -464,14 +466,14 @@ declare namespace ts {
         right: Identifier;
     }
     type EntityName = Identifier | QualifiedName;
-    type PropertyName = Identifier | LiteralExpression | ComputedPropertyName;
-    type DeclarationName = Identifier | LiteralExpression | ComputedPropertyName | BindingPattern;
+    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
+    type DeclarationName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName | BindingPattern;
     interface Declaration extends Node {
         _declarationBrand: any;
         name?: DeclarationName;
     }
     interface DeclarationStatement extends Declaration, Statement {
-        name?: Identifier | LiteralExpression;
+        name?: Identifier | StringLiteral | NumericLiteral;
     }
     interface ComputedPropertyName extends Node {
         kind: SyntaxKind.ComputedPropertyName;
@@ -573,18 +575,16 @@ declare namespace ts {
     interface PropertyLikeDeclaration extends Declaration {
         name: PropertyName;
     }
-    interface BindingPattern extends Node {
-        elements: NodeArray<BindingElement | ArrayBindingElement>;
-    }
-    interface ObjectBindingPattern extends BindingPattern {
+    interface ObjectBindingPattern extends Node {
         kind: SyntaxKind.ObjectBindingPattern;
         elements: NodeArray<BindingElement>;
     }
-    type ArrayBindingElement = BindingElement | OmittedExpression;
-    interface ArrayBindingPattern extends BindingPattern {
+    interface ArrayBindingPattern extends Node {
         kind: SyntaxKind.ArrayBindingPattern;
         elements: NodeArray<ArrayBindingElement>;
     }
+    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
+    type ArrayBindingElement = BindingElement | OmittedExpression;
     /**
      * Several node kinds share function-like features such as a signature,
      * a name, and a body. These nodes should extend FunctionLikeDeclaration.
@@ -809,17 +809,25 @@ declare namespace ts {
         operatorToken: BinaryOperatorToken;
         right: Expression;
     }
-    interface AssignmentExpression extends BinaryExpression {
+    type AssignmentOperatorToken = Token<AssignmentOperator>;
+    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
         left: LeftHandSideExpression;
-        operatorToken: Token<SyntaxKind.EqualsToken>;
+        operatorToken: TOperator;
     }
-    interface ObjectDestructuringAssignment extends AssignmentExpression {
+    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ObjectLiteralExpression;
     }
-    interface ArrayDestructuringAssignment extends AssignmentExpression {
+    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ArrayLiteralExpression;
     }
     type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
+    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
+    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
+    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Expression;
+    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
+    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
+    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
+    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
     interface ConditionalExpression extends Expression {
         kind: SyntaxKind.ConditionalExpression;
         condition: Expression;
@@ -1180,7 +1188,7 @@ declare namespace ts {
     type ModuleName = Identifier | StringLiteral;
     interface ModuleDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ModuleDeclaration;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral;
         body?: ModuleBlock | NamespaceDeclaration | JSDocNamespaceDeclaration | Identifier;
     }
     interface NamespaceDeclaration extends ModuleDeclaration {
@@ -1332,7 +1340,7 @@ declare namespace ts {
     type JSDocTypeReferencingNode = JSDocThisType | JSDocConstructorType | JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
     interface JSDocRecordMember extends PropertySignature {
         kind: SyntaxKind.JSDocRecordMember;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral | NumericLiteral;
         type?: JSDocType;
     }
     interface JSDoc extends Node {
@@ -1348,6 +1356,10 @@ declare namespace ts {
     interface JSDocUnknownTag extends JSDocTag {
         kind: SyntaxKind.JSDocTag;
     }
+    interface JSDocAugmentsTag extends JSDocTag {
+        kind: SyntaxKind.JSDocAugmentsTag;
+        typeExpression: JSDocTypeExpression;
+    }
     interface JSDocTemplateTag extends JSDocTag {
         kind: SyntaxKind.JSDocTemplateTag;
         typeParameters: NodeArray<TypeParameterDeclaration>;
@@ -1596,6 +1608,7 @@ declare namespace ts {
         getJsxIntrinsicTagNames(): Symbol[];
         isOptionalParameter(node: ParameterDeclaration): boolean;
         getAmbientModules(): Symbol[];
+        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
     }
     interface SymbolDisplayBuilder {
         buildTypeDisplay(type: Type, writer: SymbolWriter, enclosingDeclaration?: Node, flags?: TypeFormatFlags): void;
@@ -1761,7 +1774,7 @@ declare namespace ts {
         Literal = 480,
         StringOrNumberLiteral = 96,
         PossiblyFalsy = 7406,
-        StringLike = 34,
+        StringLike = 262178,
         NumberLike = 340,
         BooleanLike = 136,
         EnumLike = 272,
@@ -1845,7 +1858,7 @@ declare namespace ts {
     }
     interface IndexedAccessType extends Type {
         objectType: Type;
-        indexType: TypeParameter;
+        indexType: Type;
     }
     enum SignatureKind {
         Call = 0,
@@ -1962,12 +1975,13 @@ declare namespace ts {
         target?: ScriptTarget;
         traceResolution?: boolean;
         types?: string[];
-        /** Paths used to used to compute primary types search locations */
+        /** Paths used to compute primary types search locations */
         typeRoots?: string[];
         [option: string]: CompilerOptionsValue | undefined;
     }
-    interface TypingOptions {
+    interface TypeAcquisition {
         enableAutoDiscovery?: boolean;
+        enable?: boolean;
         include?: string[];
         exclude?: string[];
         [option: string]: string[] | boolean | undefined;
@@ -1977,7 +1991,7 @@ declare namespace ts {
         projectRootPath: string;
         safeListPath: string;
         packageNameToTypingLocation: Map<string>;
-        typingOptions: TypingOptions;
+        typeAcquisition: TypeAcquisition;
         compilerOptions: CompilerOptions;
         unresolvedImports: ReadonlyArray<string>;
     }
@@ -2025,7 +2039,7 @@ declare namespace ts {
     /** Either a parsed command line or a parsed tsconfig.json */
     interface ParsedCommandLine {
         options: CompilerOptions;
-        typingOptions?: TypingOptions;
+        typeAcquisition?: TypeAcquisition;
         fileNames: string[];
         raw?: any;
         errors: Diagnostic[];
@@ -2130,6 +2144,10 @@ declare namespace ts {
     }
 }
 declare namespace ts {
+    /** The version of the TypeScript compiler release */
+    const version = "2.2.0-dev.20161127";
+}
+declare namespace ts {
     type FileWatcherCallback = (fileName: string, removed?: boolean) => void;
     type DirectoryWatcherCallback = (fileName: string) => void;
     interface WatchedFile {
@@ -2260,9 +2278,19 @@ declare namespace ts {
      */
     function collapseTextChangeRangesAcrossMultipleVersions(changes: TextChangeRange[]): TextChangeRange;
     function getTypeParameterOwner(d: Declaration): Declaration;
-    function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean;
+    function isParameterPropertyDeclaration(node: Node): boolean;
     function getCombinedModifierFlags(node: Node): ModifierFlags;
     function getCombinedNodeFlags(node: Node): NodeFlags;
+    /**
+      * Checks to see if the locale is in the appropriate format,
+      * and if it is, attempts to set the appropriate language.
+      */
+    function validateLocaleAndSetLanguage(locale: string, sys: {
+        getExecutingFilePath(): string;
+        resolvePath(path: string): string;
+        fileExists(fileName: string): boolean;
+        readFile(fileName: string): string;
+    }, errors?: Diagnostic[]): void;
 }
 declare namespace ts {
     function createNode(kind: SyntaxKind, pos?: number, end?: number): Node;
@@ -2273,6 +2301,7 @@ declare namespace ts {
     function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks?: boolean): SourceFile;
 }
 declare namespace ts {
+    function moduleHasNonRelativeName(moduleName: string): boolean;
     function getEffectiveTypeRoots(options: CompilerOptions, host: {
         directoryExists?: (directoryName: string) => boolean;
         getCurrentDirectory?: () => string;
@@ -2297,8 +2326,6 @@ declare namespace ts {
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
 }
 declare namespace ts {
-    /** The version of the TypeScript compiler release */
-    const version = "2.2.0-dev.20161115";
     function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
     function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
@@ -2343,8 +2370,8 @@ declare namespace ts {
         options: CompilerOptions;
         errors: Diagnostic[];
     };
-    function convertTypingOptionsFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
-        options: TypingOptions;
+    function convertTypeAcquisitionFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
+        options: TypeAcquisition;
         errors: Diagnostic[];
     };
 }
@@ -2393,6 +2420,7 @@ declare namespace ts {
     }
     interface SourceFile {
         getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
+        getLineEndOfPosition(pos: number): number;
         getLineStarts(): number[];
         getPositionOfLineAndCharacter(line: number, character: number): number;
         update(newText: string, textChangeRange: TextChangeRange): SourceFile;
diff --git a/node_modules/typescript/lib/typescriptServices.js b/node_modules/typescript/lib/typescriptServices.js
index 4964aa75f..d4ad545cf 100644
--- a/node_modules/typescript/lib/typescriptServices.js
+++ b/node_modules/typescript/lib/typescriptServices.js
@@ -333,26 +333,28 @@ var ts;
         SyntaxKind[SyntaxKind["JSDocThisType"] = 277] = "JSDocThisType";
         SyntaxKind[SyntaxKind["JSDocComment"] = 278] = "JSDocComment";
         SyntaxKind[SyntaxKind["JSDocTag"] = 279] = "JSDocTag";
-        SyntaxKind[SyntaxKind["JSDocParameterTag"] = 280] = "JSDocParameterTag";
-        SyntaxKind[SyntaxKind["JSDocReturnTag"] = 281] = "JSDocReturnTag";
-        SyntaxKind[SyntaxKind["JSDocTypeTag"] = 282] = "JSDocTypeTag";
-        SyntaxKind[SyntaxKind["JSDocTemplateTag"] = 283] = "JSDocTemplateTag";
-        SyntaxKind[SyntaxKind["JSDocTypedefTag"] = 284] = "JSDocTypedefTag";
-        SyntaxKind[SyntaxKind["JSDocPropertyTag"] = 285] = "JSDocPropertyTag";
-        SyntaxKind[SyntaxKind["JSDocTypeLiteral"] = 286] = "JSDocTypeLiteral";
-        SyntaxKind[SyntaxKind["JSDocLiteralType"] = 287] = "JSDocLiteralType";
-        SyntaxKind[SyntaxKind["JSDocNullKeyword"] = 288] = "JSDocNullKeyword";
-        SyntaxKind[SyntaxKind["JSDocUndefinedKeyword"] = 289] = "JSDocUndefinedKeyword";
-        SyntaxKind[SyntaxKind["JSDocNeverKeyword"] = 290] = "JSDocNeverKeyword";
+        SyntaxKind[SyntaxKind["JSDocAugmentsTag"] = 280] = "JSDocAugmentsTag";
+        SyntaxKind[SyntaxKind["JSDocParameterTag"] = 281] = "JSDocParameterTag";
+        SyntaxKind[SyntaxKind["JSDocReturnTag"] = 282] = "JSDocReturnTag";
+        SyntaxKind[SyntaxKind["JSDocTypeTag"] = 283] = "JSDocTypeTag";
+        SyntaxKind[SyntaxKind["JSDocTemplateTag"] = 284] = "JSDocTemplateTag";
+        SyntaxKind[SyntaxKind["JSDocTypedefTag"] = 285] = "JSDocTypedefTag";
+        SyntaxKind[SyntaxKind["JSDocPropertyTag"] = 286] = "JSDocPropertyTag";
+        SyntaxKind[SyntaxKind["JSDocTypeLiteral"] = 287] = "JSDocTypeLiteral";
+        SyntaxKind[SyntaxKind["JSDocLiteralType"] = 288] = "JSDocLiteralType";
+        SyntaxKind[SyntaxKind["JSDocNullKeyword"] = 289] = "JSDocNullKeyword";
+        SyntaxKind[SyntaxKind["JSDocUndefinedKeyword"] = 290] = "JSDocUndefinedKeyword";
+        SyntaxKind[SyntaxKind["JSDocNeverKeyword"] = 291] = "JSDocNeverKeyword";
         // Synthesized list
-        SyntaxKind[SyntaxKind["SyntaxList"] = 291] = "SyntaxList";
+        SyntaxKind[SyntaxKind["SyntaxList"] = 292] = "SyntaxList";
         // Transformation nodes
-        SyntaxKind[SyntaxKind["NotEmittedStatement"] = 292] = "NotEmittedStatement";
-        SyntaxKind[SyntaxKind["PartiallyEmittedExpression"] = 293] = "PartiallyEmittedExpression";
-        SyntaxKind[SyntaxKind["MergeDeclarationMarker"] = 294] = "MergeDeclarationMarker";
-        SyntaxKind[SyntaxKind["EndOfDeclarationMarker"] = 295] = "EndOfDeclarationMarker";
+        SyntaxKind[SyntaxKind["NotEmittedStatement"] = 293] = "NotEmittedStatement";
+        SyntaxKind[SyntaxKind["PartiallyEmittedExpression"] = 294] = "PartiallyEmittedExpression";
+        SyntaxKind[SyntaxKind["MergeDeclarationMarker"] = 295] = "MergeDeclarationMarker";
+        SyntaxKind[SyntaxKind["EndOfDeclarationMarker"] = 296] = "EndOfDeclarationMarker";
+        SyntaxKind[SyntaxKind["RawExpression"] = 297] = "RawExpression";
         // Enum value count
-        SyntaxKind[SyntaxKind["Count"] = 296] = "Count";
+        SyntaxKind[SyntaxKind["Count"] = 298] = "Count";
         // Markers
         SyntaxKind[SyntaxKind["FirstAssignment"] = 57] = "FirstAssignment";
         SyntaxKind[SyntaxKind["LastAssignment"] = 69] = "LastAssignment";
@@ -380,9 +382,9 @@ var ts;
         SyntaxKind[SyntaxKind["LastBinaryOperator"] = 69] = "LastBinaryOperator";
         SyntaxKind[SyntaxKind["FirstNode"] = 141] = "FirstNode";
         SyntaxKind[SyntaxKind["FirstJSDocNode"] = 262] = "FirstJSDocNode";
-        SyntaxKind[SyntaxKind["LastJSDocNode"] = 287] = "LastJSDocNode";
+        SyntaxKind[SyntaxKind["LastJSDocNode"] = 288] = "LastJSDocNode";
         SyntaxKind[SyntaxKind["FirstJSDocTagNode"] = 278] = "FirstJSDocTagNode";
-        SyntaxKind[SyntaxKind["LastJSDocTagNode"] = 290] = "LastJSDocTagNode";
+        SyntaxKind[SyntaxKind["LastJSDocTagNode"] = 291] = "LastJSDocTagNode";
     })(SyntaxKind = ts.SyntaxKind || (ts.SyntaxKind = {}));
     var NodeFlags;
     (function (NodeFlags) {
@@ -710,7 +712,7 @@ var ts;
         TypeFlags[TypeFlags["Intrinsic"] = 16015] = "Intrinsic";
         /* @internal */
         TypeFlags[TypeFlags["Primitive"] = 8190] = "Primitive";
-        TypeFlags[TypeFlags["StringLike"] = 34] = "StringLike";
+        TypeFlags[TypeFlags["StringLike"] = 262178] = "StringLike";
         TypeFlags[TypeFlags["NumberLike"] = 340] = "NumberLike";
         TypeFlags[TypeFlags["BooleanLike"] = 136] = "BooleanLike";
         TypeFlags[TypeFlags["EnumLike"] = 272] = "EnumLike";
@@ -974,98 +976,95 @@ var ts;
         // - Flags used to indicate that a node or subtree contains syntax that requires transformation.
         TransformFlags[TransformFlags["TypeScript"] = 1] = "TypeScript";
         TransformFlags[TransformFlags["ContainsTypeScript"] = 2] = "ContainsTypeScript";
-        TransformFlags[TransformFlags["Jsx"] = 4] = "Jsx";
-        TransformFlags[TransformFlags["ContainsJsx"] = 8] = "ContainsJsx";
-        TransformFlags[TransformFlags["ESNext"] = 16] = "ESNext";
-        TransformFlags[TransformFlags["ContainsESNext"] = 32] = "ContainsESNext";
-        TransformFlags[TransformFlags["ES2017"] = 64] = "ES2017";
-        TransformFlags[TransformFlags["ContainsES2017"] = 128] = "ContainsES2017";
-        TransformFlags[TransformFlags["ES2016"] = 256] = "ES2016";
-        TransformFlags[TransformFlags["ContainsES2016"] = 512] = "ContainsES2016";
-        TransformFlags[TransformFlags["ES2015"] = 1024] = "ES2015";
-        TransformFlags[TransformFlags["ContainsES2015"] = 2048] = "ContainsES2015";
-        TransformFlags[TransformFlags["Generator"] = 4096] = "Generator";
-        TransformFlags[TransformFlags["ContainsGenerator"] = 8192] = "ContainsGenerator";
-        TransformFlags[TransformFlags["DestructuringAssignment"] = 16384] = "DestructuringAssignment";
-        TransformFlags[TransformFlags["ContainsDestructuringAssignment"] = 32768] = "ContainsDestructuringAssignment";
+        TransformFlags[TransformFlags["ContainsJsx"] = 4] = "ContainsJsx";
+        TransformFlags[TransformFlags["ContainsESNext"] = 8] = "ContainsESNext";
+        TransformFlags[TransformFlags["ContainsES2017"] = 16] = "ContainsES2017";
+        TransformFlags[TransformFlags["ContainsES2016"] = 32] = "ContainsES2016";
+        TransformFlags[TransformFlags["ES2015"] = 64] = "ES2015";
+        TransformFlags[TransformFlags["ContainsES2015"] = 128] = "ContainsES2015";
+        TransformFlags[TransformFlags["Generator"] = 256] = "Generator";
+        TransformFlags[TransformFlags["ContainsGenerator"] = 512] = "ContainsGenerator";
+        TransformFlags[TransformFlags["DestructuringAssignment"] = 1024] = "DestructuringAssignment";
+        TransformFlags[TransformFlags["ContainsDestructuringAssignment"] = 2048] = "ContainsDestructuringAssignment";
         // Markers
         // - Flags used to indicate that a subtree contains a specific transformation.
-        TransformFlags[TransformFlags["ContainsDecorators"] = 65536] = "ContainsDecorators";
-        TransformFlags[TransformFlags["ContainsPropertyInitializer"] = 131072] = "ContainsPropertyInitializer";
-        TransformFlags[TransformFlags["ContainsLexicalThis"] = 262144] = "ContainsLexicalThis";
-        TransformFlags[TransformFlags["ContainsCapturedLexicalThis"] = 524288] = "ContainsCapturedLexicalThis";
-        TransformFlags[TransformFlags["ContainsLexicalThisInComputedPropertyName"] = 1048576] = "ContainsLexicalThisInComputedPropertyName";
-        TransformFlags[TransformFlags["ContainsDefaultValueAssignments"] = 2097152] = "ContainsDefaultValueAssignments";
-        TransformFlags[TransformFlags["ContainsParameterPropertyAssignments"] = 4194304] = "ContainsParameterPropertyAssignments";
-        TransformFlags[TransformFlags["ContainsSpreadExpression"] = 8388608] = "ContainsSpreadExpression";
-        TransformFlags[TransformFlags["ContainsComputedPropertyName"] = 16777216] = "ContainsComputedPropertyName";
-        TransformFlags[TransformFlags["ContainsBlockScopedBinding"] = 33554432] = "ContainsBlockScopedBinding";
-        TransformFlags[TransformFlags["ContainsBindingPattern"] = 67108864] = "ContainsBindingPattern";
-        TransformFlags[TransformFlags["ContainsYield"] = 134217728] = "ContainsYield";
-        TransformFlags[TransformFlags["ContainsHoistedDeclarationOrCompletion"] = 268435456] = "ContainsHoistedDeclarationOrCompletion";
+        TransformFlags[TransformFlags["ContainsDecorators"] = 4096] = "ContainsDecorators";
+        TransformFlags[TransformFlags["ContainsPropertyInitializer"] = 8192] = "ContainsPropertyInitializer";
+        TransformFlags[TransformFlags["ContainsLexicalThis"] = 16384] = "ContainsLexicalThis";
+        TransformFlags[TransformFlags["ContainsCapturedLexicalThis"] = 32768] = "ContainsCapturedLexicalThis";
+        TransformFlags[TransformFlags["ContainsLexicalThisInComputedPropertyName"] = 65536] = "ContainsLexicalThisInComputedPropertyName";
+        TransformFlags[TransformFlags["ContainsDefaultValueAssignments"] = 131072] = "ContainsDefaultValueAssignments";
+        TransformFlags[TransformFlags["ContainsParameterPropertyAssignments"] = 262144] = "ContainsParameterPropertyAssignments";
+        TransformFlags[TransformFlags["ContainsSpread"] = 524288] = "ContainsSpread";
+        TransformFlags[TransformFlags["ContainsObjectSpread"] = 1048576] = "ContainsObjectSpread";
+        TransformFlags[TransformFlags["ContainsRest"] = 524288] = "ContainsRest";
+        TransformFlags[TransformFlags["ContainsObjectRest"] = 1048576] = "ContainsObjectRest";
+        TransformFlags[TransformFlags["ContainsComputedPropertyName"] = 2097152] = "ContainsComputedPropertyName";
+        TransformFlags[TransformFlags["ContainsBlockScopedBinding"] = 4194304] = "ContainsBlockScopedBinding";
+        TransformFlags[TransformFlags["ContainsBindingPattern"] = 8388608] = "ContainsBindingPattern";
+        TransformFlags[TransformFlags["ContainsYield"] = 16777216] = "ContainsYield";
+        TransformFlags[TransformFlags["ContainsHoistedDeclarationOrCompletion"] = 33554432] = "ContainsHoistedDeclarationOrCompletion";
         TransformFlags[TransformFlags["HasComputedFlags"] = 536870912] = "HasComputedFlags";
         // Assertions
         // - Bitmasks that are used to assert facts about the syntax of a node and its subtree.
         TransformFlags[TransformFlags["AssertTypeScript"] = 3] = "AssertTypeScript";
-        TransformFlags[TransformFlags["AssertJsx"] = 12] = "AssertJsx";
-        TransformFlags[TransformFlags["AssertESNext"] = 48] = "AssertESNext";
-        TransformFlags[TransformFlags["AssertES2017"] = 192] = "AssertES2017";
-        TransformFlags[TransformFlags["AssertES2016"] = 768] = "AssertES2016";
-        TransformFlags[TransformFlags["AssertES2015"] = 3072] = "AssertES2015";
-        TransformFlags[TransformFlags["AssertGenerator"] = 12288] = "AssertGenerator";
-        TransformFlags[TransformFlags["AssertDestructuringAssignment"] = 49152] = "AssertDestructuringAssignment";
+        TransformFlags[TransformFlags["AssertJsx"] = 4] = "AssertJsx";
+        TransformFlags[TransformFlags["AssertESNext"] = 8] = "AssertESNext";
+        TransformFlags[TransformFlags["AssertES2017"] = 16] = "AssertES2017";
+        TransformFlags[TransformFlags["AssertES2016"] = 32] = "AssertES2016";
+        TransformFlags[TransformFlags["AssertES2015"] = 192] = "AssertES2015";
+        TransformFlags[TransformFlags["AssertGenerator"] = 768] = "AssertGenerator";
+        TransformFlags[TransformFlags["AssertDestructuringAssignment"] = 3072] = "AssertDestructuringAssignment";
         // Scope Exclusions
         // - Bitmasks that exclude flags from propagating out of a specific context
         //   into the subtree flags of their container.
-        TransformFlags[TransformFlags["NodeExcludes"] = 536892757] = "NodeExcludes";
-        TransformFlags[TransformFlags["ArrowFunctionExcludes"] = 979719509] = "ArrowFunctionExcludes";
-        TransformFlags[TransformFlags["FunctionExcludes"] = 980243797] = "FunctionExcludes";
-        TransformFlags[TransformFlags["ConstructorExcludes"] = 975983957] = "ConstructorExcludes";
-        TransformFlags[TransformFlags["MethodOrAccessorExcludes"] = 975983957] = "MethodOrAccessorExcludes";
-        TransformFlags[TransformFlags["ClassExcludes"] = 559895893] = "ClassExcludes";
-        TransformFlags[TransformFlags["ModuleExcludes"] = 839734613] = "ModuleExcludes";
+        TransformFlags[TransformFlags["NodeExcludes"] = 536872257] = "NodeExcludes";
+        TransformFlags[TransformFlags["ArrowFunctionExcludes"] = 601249089] = "ArrowFunctionExcludes";
+        TransformFlags[TransformFlags["FunctionExcludes"] = 601281857] = "FunctionExcludes";
+        TransformFlags[TransformFlags["ConstructorExcludes"] = 601015617] = "ConstructorExcludes";
+        TransformFlags[TransformFlags["MethodOrAccessorExcludes"] = 601015617] = "MethodOrAccessorExcludes";
+        TransformFlags[TransformFlags["ClassExcludes"] = 539358529] = "ClassExcludes";
+        TransformFlags[TransformFlags["ModuleExcludes"] = 574674241] = "ModuleExcludes";
         TransformFlags[TransformFlags["TypeExcludes"] = -3] = "TypeExcludes";
-        TransformFlags[TransformFlags["ObjectLiteralExcludes"] = 554784085] = "ObjectLiteralExcludes";
-        TransformFlags[TransformFlags["ArrayLiteralOrCallOrNewExcludes"] = 545281365] = "ArrayLiteralOrCallOrNewExcludes";
-        TransformFlags[TransformFlags["VariableDeclarationListExcludes"] = 604001621] = "VariableDeclarationListExcludes";
-        TransformFlags[TransformFlags["ParameterExcludes"] = 604001621] = "ParameterExcludes";
+        TransformFlags[TransformFlags["ObjectLiteralExcludes"] = 540087617] = "ObjectLiteralExcludes";
+        TransformFlags[TransformFlags["ArrayLiteralOrCallOrNewExcludes"] = 537396545] = "ArrayLiteralOrCallOrNewExcludes";
+        TransformFlags[TransformFlags["VariableDeclarationListExcludes"] = 546309441] = "VariableDeclarationListExcludes";
+        TransformFlags[TransformFlags["ParameterExcludes"] = 536872257] = "ParameterExcludes";
+        TransformFlags[TransformFlags["CatchClauseExcludes"] = 537920833] = "CatchClauseExcludes";
+        TransformFlags[TransformFlags["BindingPatternExcludes"] = 537396545] = "BindingPatternExcludes";
         // Masks
         // - Additional bitmasks
-        TransformFlags[TransformFlags["TypeScriptClassSyntaxMask"] = 4390912] = "TypeScriptClassSyntaxMask";
-        TransformFlags[TransformFlags["ES2015FunctionSyntaxMask"] = 2621440] = "ES2015FunctionSyntaxMask";
+        TransformFlags[TransformFlags["TypeScriptClassSyntaxMask"] = 274432] = "TypeScriptClassSyntaxMask";
+        TransformFlags[TransformFlags["ES2015FunctionSyntaxMask"] = 163840] = "ES2015FunctionSyntaxMask";
     })(TransformFlags = ts.TransformFlags || (ts.TransformFlags = {}));
     /* @internal */
     var EmitFlags;
     (function (EmitFlags) {
-        EmitFlags[EmitFlags["EmitEmitHelpers"] = 1] = "EmitEmitHelpers";
-        EmitFlags[EmitFlags["EmitExportStar"] = 2] = "EmitExportStar";
-        EmitFlags[EmitFlags["EmitSuperHelper"] = 4] = "EmitSuperHelper";
-        EmitFlags[EmitFlags["EmitAdvancedSuperHelper"] = 8] = "EmitAdvancedSuperHelper";
-        EmitFlags[EmitFlags["UMDDefine"] = 16] = "UMDDefine";
-        EmitFlags[EmitFlags["SingleLine"] = 32] = "SingleLine";
-        EmitFlags[EmitFlags["AdviseOnEmitNode"] = 64] = "AdviseOnEmitNode";
-        EmitFlags[EmitFlags["NoSubstitution"] = 128] = "NoSubstitution";
-        EmitFlags[EmitFlags["CapturesThis"] = 256] = "CapturesThis";
-        EmitFlags[EmitFlags["NoLeadingSourceMap"] = 512] = "NoLeadingSourceMap";
-        EmitFlags[EmitFlags["NoTrailingSourceMap"] = 1024] = "NoTrailingSourceMap";
-        EmitFlags[EmitFlags["NoSourceMap"] = 1536] = "NoSourceMap";
-        EmitFlags[EmitFlags["NoNestedSourceMaps"] = 2048] = "NoNestedSourceMaps";
-        EmitFlags[EmitFlags["NoTokenLeadingSourceMaps"] = 4096] = "NoTokenLeadingSourceMaps";
-        EmitFlags[EmitFlags["NoTokenTrailingSourceMaps"] = 8192] = "NoTokenTrailingSourceMaps";
-        EmitFlags[EmitFlags["NoTokenSourceMaps"] = 12288] = "NoTokenSourceMaps";
-        EmitFlags[EmitFlags["NoLeadingComments"] = 16384] = "NoLeadingComments";
-        EmitFlags[EmitFlags["NoTrailingComments"] = 32768] = "NoTrailingComments";
-        EmitFlags[EmitFlags["NoComments"] = 49152] = "NoComments";
-        EmitFlags[EmitFlags["NoNestedComments"] = 65536] = "NoNestedComments";
-        EmitFlags[EmitFlags["ExportName"] = 131072] = "ExportName";
-        EmitFlags[EmitFlags["LocalName"] = 262144] = "LocalName";
-        EmitFlags[EmitFlags["Indented"] = 524288] = "Indented";
-        EmitFlags[EmitFlags["NoIndentation"] = 1048576] = "NoIndentation";
-        EmitFlags[EmitFlags["AsyncFunctionBody"] = 2097152] = "AsyncFunctionBody";
-        EmitFlags[EmitFlags["ReuseTempVariableScope"] = 4194304] = "ReuseTempVariableScope";
-        EmitFlags[EmitFlags["CustomPrologue"] = 8388608] = "CustomPrologue";
-        EmitFlags[EmitFlags["NoHoisting"] = 16777216] = "NoHoisting";
-        EmitFlags[EmitFlags["HasEndOfDeclarationMarker"] = 33554432] = "HasEndOfDeclarationMarker";
+        EmitFlags[EmitFlags["SingleLine"] = 1] = "SingleLine";
+        EmitFlags[EmitFlags["AdviseOnEmitNode"] = 2] = "AdviseOnEmitNode";
+        EmitFlags[EmitFlags["NoSubstitution"] = 4] = "NoSubstitution";
+        EmitFlags[EmitFlags["CapturesThis"] = 8] = "CapturesThis";
+        EmitFlags[EmitFlags["NoLeadingSourceMap"] = 16] = "NoLeadingSourceMap";
+        EmitFlags[EmitFlags["NoTrailingSourceMap"] = 32] = "NoTrailingSourceMap";
+        EmitFlags[EmitFlags["NoSourceMap"] = 48] = "NoSourceMap";
+        EmitFlags[EmitFlags["NoNestedSourceMaps"] = 64] = "NoNestedSourceMaps";
+        EmitFlags[EmitFlags["NoTokenLeadingSourceMaps"] = 128] = "NoTokenLeadingSourceMaps";
+        EmitFlags[EmitFlags["NoTokenTrailingSourceMaps"] = 256] = "NoTokenTrailingSourceMaps";
+        EmitFlags[EmitFlags["NoTokenSourceMaps"] = 384] = "NoTokenSourceMaps";
+        EmitFlags[EmitFlags["NoLeadingComments"] = 512] = "NoLeadingComments";
+        EmitFlags[EmitFlags["NoTrailingComments"] = 1024] = "NoTrailingComments";
+        EmitFlags[EmitFlags["NoComments"] = 1536] = "NoComments";
+        EmitFlags[EmitFlags["NoNestedComments"] = 2048] = "NoNestedComments";
+        EmitFlags[EmitFlags["HelperName"] = 4096] = "HelperName";
+        EmitFlags[EmitFlags["ExportName"] = 8192] = "ExportName";
+        EmitFlags[EmitFlags["LocalName"] = 16384] = "LocalName";
+        EmitFlags[EmitFlags["Indented"] = 32768] = "Indented";
+        EmitFlags[EmitFlags["NoIndentation"] = 65536] = "NoIndentation";
+        EmitFlags[EmitFlags["AsyncFunctionBody"] = 131072] = "AsyncFunctionBody";
+        EmitFlags[EmitFlags["ReuseTempVariableScope"] = 262144] = "ReuseTempVariableScope";
+        EmitFlags[EmitFlags["CustomPrologue"] = 524288] = "CustomPrologue";
+        EmitFlags[EmitFlags["NoHoisting"] = 1048576] = "NoHoisting";
+        EmitFlags[EmitFlags["HasEndOfDeclarationMarker"] = 2097152] = "HasEndOfDeclarationMarker";
     })(EmitFlags = ts.EmitFlags || (ts.EmitFlags = {}));
     /* @internal */
     var EmitContext;
@@ -1172,9 +1171,13 @@ var ts;
 })(ts || (ts = {}));
 /// <reference path="types.ts"/>
 /// <reference path="performance.ts" />
-/* @internal */
 var ts;
 (function (ts) {
+    /** The version of the TypeScript compiler release */
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+/* @internal */
+(function (ts) {
     /**
      * Ternary values are defined such that
      * x & y is False if either x or y is False.
@@ -1727,7 +1730,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -1750,6 +1753,17 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    /**
+     * Stable sort of an array. Elements equal to each other maintain their relative position in the array.
+     */
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; }) // create array of indices
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); }) // sort indices by value then position
+            .map(function (i) { return array[i]; }); // get sorted array
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -1968,6 +1982,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -2483,6 +2506,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 /* ES2015 */ ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     /* @internal */
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
@@ -3140,6 +3171,17 @@ var ts;
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
     /** Remove an item from an array, moving everything to its right one space left. */
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
+    /** Remove an item by index from an array, moving everything to its right one space left. */
     function orderedRemoveItemAt(array, index) {
         // This seems to be faster than either `array.splice(i, 1)` or `array.copyWithin(i, i+ 1)`.
         for (var i = index; i < array.length - 1; i++) {
@@ -4244,7 +4286,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -4309,7 +4351,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -4380,6 +4423,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -4594,9 +4638,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -4608,6 +4652,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 /// <reference path="core.ts"/>
@@ -6552,7 +6599,7 @@ var ts;
         return !nodeIsMissing(node);
     }
     ts.nodeIsPresent = nodeIsPresent;
-    function getTokenPosOfNode(node, sourceFile, includeJsDocComment) {
+    function getTokenPosOfNode(node, sourceFile, includeJsDoc) {
         // With nodes that have no width (i.e. 'Missing' nodes), we actually *don't*
         // want to skip trivia because this will launch us forward to the next token.
         if (nodeIsMissing(node)) {
@@ -6561,25 +6608,25 @@ var ts;
         if (isJSDocNode(node)) {
             return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos, /*stopAfterLineBreak*/ false, /*stopAtComments*/ true);
         }
-        if (includeJsDocComment && node.jsDocComments && node.jsDocComments.length > 0) {
-            return getTokenPosOfNode(node.jsDocComments[0]);
+        if (includeJsDoc && node.jsDoc && node.jsDoc.length > 0) {
+            return getTokenPosOfNode(node.jsDoc[0]);
         }
         // For a syntax list, it is possible that one of its children has JSDocComment nodes, while
         // the syntax list itself considers them as normal trivia. Therefore if we simply skip
         // trivia for the list, we may have skipped the JSDocComment as well. So we should process its
         // first child to determine the actual position of its first token.
-        if (node.kind === 291 /* SyntaxList */ && node._children.length > 0) {
-            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDocComment);
+        if (node.kind === 292 /* SyntaxList */ && node._children.length > 0) {
+            return getTokenPosOfNode(node._children[0], sourceFile, includeJsDoc);
         }
         return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
     }
     ts.getTokenPosOfNode = getTokenPosOfNode;
     function isJSDocNode(node) {
-        return node.kind >= 262 /* FirstJSDocNode */ && node.kind <= 287 /* LastJSDocNode */;
+        return node.kind >= 262 /* FirstJSDocNode */ && node.kind <= 288 /* LastJSDocNode */;
     }
     ts.isJSDocNode = isJSDocNode;
     function isJSDocTag(node) {
-        return node.kind >= 278 /* FirstJSDocTagNode */ && node.kind <= 290 /* LastJSDocTagNode */;
+        return node.kind >= 278 /* FirstJSDocTagNode */ && node.kind <= 291 /* LastJSDocTagNode */;
     }
     ts.isJSDocTag = isJSDocTag;
     function getNonDecoratorTokenPosOfNode(node, sourceFile) {
@@ -6778,7 +6825,7 @@ var ts;
             case 8 /* NumericLiteral */:
                 return name.text;
             case 142 /* ComputedPropertyName */:
-                if (isStringOrNumericLiteral(name.expression.kind)) {
+                if (isStringOrNumericLiteral(name.expression)) {
                     return name.expression.text;
                 }
         }
@@ -6907,7 +6954,8 @@ var ts;
     }
     ts.isSuperCall = isSuperCall;
     function isPrologueDirective(node) {
-        return node.kind === 207 /* ExpressionStatement */ && node.expression.kind === 9 /* StringLiteral */;
+        return node.kind === 207 /* ExpressionStatement */
+            && node.expression.kind === 9 /* StringLiteral */;
     }
     ts.isPrologueDirective = isPrologueDirective;
     function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
@@ -6918,26 +6966,21 @@ var ts;
         return ts.getLeadingCommentRanges(text, node.pos);
     }
     ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
-    function getJsDocComments(node, sourceFileOfNode) {
-        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
-    }
-    ts.getJsDocComments = getJsDocComments;
-    function getJsDocCommentsFromText(node, text) {
+    function getJSDocCommentRanges(node, text) {
         var commentRanges = (node.kind === 144 /* Parameter */ ||
             node.kind === 143 /* TypeParameter */ ||
             node.kind === 184 /* FunctionExpression */ ||
             node.kind === 185 /* ArrowFunction */) ?
             ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
             getLeadingCommentRangesOfNodeFromText(node, text);
-        return ts.filter(commentRanges, isJsDocComment);
-        function isJsDocComment(comment) {
-            // True if the comment starts with '/**' but not if it is '/**/'
+        // True if the comment starts with '/**' but not if it is '/**/'
+        return ts.filter(commentRanges, function (comment) {
             return text.charCodeAt(comment.pos + 1) === 42 /* asterisk */ &&
                 text.charCodeAt(comment.pos + 2) === 42 /* asterisk */ &&
                 text.charCodeAt(comment.pos + 3) !== 47 /* slash */;
-        }
+        });
     }
-    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
+    ts.getJSDocCommentRanges = getJSDocCommentRanges;
     ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
     ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
@@ -7520,6 +7563,7 @@ var ts;
                     case 145 /* Decorator */:
                     case 252 /* JsxExpression */:
                     case 251 /* JsxSpreadAttribute */:
+                    case 259 /* SpreadAssignment */:
                         return true;
                     case 199 /* ExpressionWithTypeArguments */:
                         return parent_3.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_3);
@@ -7690,127 +7734,98 @@ var ts;
             node.parameters[0].type.kind === 276 /* JSDocConstructorType */;
     }
     ts.isJSDocConstructSignature = isJSDocConstructSignature;
-    function getJSDocTag(node, kind, checkParentVariableStatement) {
-        if (!node) {
-            return undefined;
-        }
-        var jsDocTags = getJSDocTags(node, checkParentVariableStatement);
-        if (!jsDocTags) {
-            return undefined;
-        }
-        for (var _i = 0, jsDocTags_1 = jsDocTags; _i < jsDocTags_1.length; _i++) {
-            var tag = jsDocTags_1[_i];
-            if (tag.kind === kind) {
-                return tag;
-            }
-        }
+    function getCommentsFromJSDoc(node) {
+        return ts.map(getJSDocs(node), function (doc) { return doc.comment; });
     }
-    function append(previous, additional) {
-        if (additional) {
-            if (!previous) {
-                previous = [];
-            }
-            for (var _i = 0, additional_1 = additional; _i < additional_1.length; _i++) {
-                var x = additional_1[_i];
-                previous.push(x);
-            }
-        }
-        return previous;
-    }
-    function getJSDocComments(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) { return ts.map(docs, function (doc) { return doc.comment; }); }, function (tags) { return ts.map(tags, function (tag) { return tag.comment; }); });
-    }
-    ts.getJSDocComments = getJSDocComments;
-    function getJSDocTags(node, checkParentVariableStatement) {
-        return getJSDocs(node, checkParentVariableStatement, function (docs) {
+    ts.getCommentsFromJSDoc = getCommentsFromJSDoc;
+    function getJSDocTags(node, kind) {
+        var docs = getJSDocs(node);
+        if (docs) {
             var result = [];
             for (var _i = 0, docs_1 = docs; _i < docs_1.length; _i++) {
                 var doc = docs_1[_i];
-                if (doc.tags) {
-                    result.push.apply(result, doc.tags);
+                if (doc.kind === 281 /* JSDocParameterTag */) {
+                    if (doc.kind === kind) {
+                        result.push(doc);
+                    }
+                }
+                else {
+                    result.push.apply(result, ts.filter(doc.tags, function (tag) { return tag.kind === kind; }));
                 }
             }
             return result;
-        }, function (tags) { return tags; });
-    }
-    function getJSDocs(node, checkParentVariableStatement, getDocs, getTags) {
-        // TODO: Get rid of getJsDocComments and friends (note the lowercase 's' in Js)
-        // TODO: A lot of this work should be cached, maybe. I guess it's only used in services right now...
-        var result = undefined;
-        // prepend documentation from parent sources
-        if (checkParentVariableStatement) {
+        }
+    }
+    function getFirstJSDocTag(node, kind) {
+        return node && ts.firstOrUndefined(getJSDocTags(node, kind));
+    }
+    function getJSDocs(node) {
+        var cache = node.jsDocCache;
+        if (!cache) {
+            getJSDocsWorker(node);
+            node.jsDocCache = cache;
+        }
+        return cache;
+        function getJSDocsWorker(node) {
+            var parent = node.parent;
             // Try to recognize this pattern when node is initializer of variable declaration and JSDoc comments are on containing variable statement.
             // /**
             //   * @param {number} name
             //   * @returns {number}
             //   */
             // var x = function(name) { return name.length; }
-            var isInitializerOfVariableDeclarationInStatement = isVariableLike(node.parent) &&
-                (node.parent).initializer === node &&
-                node.parent.parent.parent.kind === 205 /* VariableStatement */;
+            var isInitializerOfVariableDeclarationInStatement = isVariableLike(parent) &&
+                parent.initializer === node &&
+                parent.parent.parent.kind === 205 /* VariableStatement */;
             var isVariableOfVariableDeclarationStatement = isVariableLike(node) &&
-                node.parent.parent.kind === 205 /* VariableStatement */;
-            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent :
-                isVariableOfVariableDeclarationStatement ? node.parent.parent :
+                parent.parent.kind === 205 /* VariableStatement */;
+            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? parent.parent.parent :
+                isVariableOfVariableDeclarationStatement ? parent.parent :
                     undefined;
             if (variableStatementNode) {
-                result = append(result, getJSDocs(variableStatementNode, checkParentVariableStatement, getDocs, getTags));
-            }
-            if (node.kind === 230 /* ModuleDeclaration */ &&
-                node.parent && node.parent.kind === 230 /* ModuleDeclaration */) {
-                result = append(result, getJSDocs(node.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(variableStatementNode);
             }
             // Also recognize when the node is the RHS of an assignment expression
-            var parent_4 = node.parent;
-            var isSourceOfAssignmentExpressionStatement = parent_4 && parent_4.parent &&
-                parent_4.kind === 192 /* BinaryExpression */ &&
-                parent_4.operatorToken.kind === 57 /* EqualsToken */ &&
-                parent_4.parent.kind === 207 /* ExpressionStatement */;
+            var isSourceOfAssignmentExpressionStatement = parent && parent.parent &&
+                parent.kind === 192 /* BinaryExpression */ &&
+                parent.operatorToken.kind === 57 /* EqualsToken */ &&
+                parent.parent.kind === 207 /* ExpressionStatement */;
             if (isSourceOfAssignmentExpressionStatement) {
-                result = append(result, getJSDocs(parent_4.parent, checkParentVariableStatement, getDocs, getTags));
+                getJSDocsWorker(parent.parent);
             }
-            var isPropertyAssignmentExpression = parent_4 && parent_4.kind === 257 /* PropertyAssignment */;
-            if (isPropertyAssignmentExpression) {
-                result = append(result, getJSDocs(parent_4, checkParentVariableStatement, getDocs, getTags));
+            var isModuleDeclaration = node.kind === 230 /* ModuleDeclaration */ &&
+                parent && parent.kind === 230 /* ModuleDeclaration */;
+            var isPropertyAssignmentExpression = parent && parent.kind === 257 /* PropertyAssignment */;
+            if (isModuleDeclaration || isPropertyAssignmentExpression) {
+                getJSDocsWorker(parent);
             }
             // Pull parameter comments from declaring function as well
             if (node.kind === 144 /* Parameter */) {
-                var paramTags = getJSDocParameterTag(node, checkParentVariableStatement);
-                if (paramTags) {
-                    result = append(result, getTags(paramTags));
-                }
+                cache = ts.concatenate(cache, getJSDocParameterTags(node));
             }
-        }
-        if (isVariableLike(node) && node.initializer) {
-            result = append(result, getJSDocs(node.initializer, /*checkParentVariableStatement*/ false, getDocs, getTags));
-        }
-        if (node.jsDocComments) {
-            if (result) {
-                result = append(result, getDocs(node.jsDocComments));
-            }
-            else {
-                return getDocs(node.jsDocComments);
+            if (isVariableLike(node) && node.initializer) {
+                cache = ts.concatenate(cache, node.initializer.jsDoc);
             }
+            cache = ts.concatenate(cache, node.jsDoc);
         }
-        return result;
     }
-    function getJSDocParameterTag(param, checkParentVariableStatement) {
+    function getJSDocParameterTags(param) {
+        if (!isParameter(param)) {
+            return undefined;
+        }
         var func = param.parent;
-        var tags = getJSDocTags(func, checkParentVariableStatement);
+        var tags = getJSDocTags(func, 281 /* JSDocParameterTag */);
         if (!param.name) {
             // this is an anonymous jsdoc param from a `function(type1, type2): type3` specification
             var i = func.parameters.indexOf(param);
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 /* JSDocParameterTag */; });
+            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 281 /* JSDocParameterTag */; });
             if (paramTags && 0 <= i && i < paramTags.length) {
                 return [paramTags[i]];
             }
         }
         else if (param.name.kind === 70 /* Identifier */) {
             var name_6 = param.name.text;
-            var paramTags = ts.filter(tags, function (tag) { return tag.kind === 280 /* JSDocParameterTag */ && tag.parameterName.text === name_6; });
-            if (paramTags) {
-                return paramTags;
-            }
+            return ts.filter(tags, function (tag) { return tag.kind === 281 /* JSDocParameterTag */ && tag.parameterName.text === name_6; });
         }
         else {
             // TODO: it's a destructured parameter, so it should look up an "object type" series of multiple lines
@@ -7818,40 +7833,30 @@ var ts;
             return undefined;
         }
     }
-    function getJSDocTypeTag(node) {
-        return getJSDocTag(node, 282 /* JSDocTypeTag */, /*checkParentVariableStatement*/ false);
+    ts.getJSDocParameterTags = getJSDocParameterTags;
+    function getJSDocType(node) {
+        var tag = getFirstJSDocTag(node, 283 /* JSDocTypeTag */);
+        if (!tag && node.kind === 144 /* Parameter */) {
+            var paramTags = getJSDocParameterTags(node);
+            if (paramTags) {
+                tag = ts.find(paramTags, function (tag) { return !!tag.typeExpression; });
+            }
+        }
+        return tag && tag.typeExpression && tag.typeExpression.type;
+    }
+    ts.getJSDocType = getJSDocType;
+    function getJSDocAugmentsTag(node) {
+        return getFirstJSDocTag(node, 280 /* JSDocAugmentsTag */);
     }
-    ts.getJSDocTypeTag = getJSDocTypeTag;
+    ts.getJSDocAugmentsTag = getJSDocAugmentsTag;
     function getJSDocReturnTag(node) {
-        return getJSDocTag(node, 281 /* JSDocReturnTag */, /*checkParentVariableStatement*/ true);
+        return getFirstJSDocTag(node, 282 /* JSDocReturnTag */);
     }
     ts.getJSDocReturnTag = getJSDocReturnTag;
     function getJSDocTemplateTag(node) {
-        return getJSDocTag(node, 283 /* JSDocTemplateTag */, /*checkParentVariableStatement*/ false);
+        return getFirstJSDocTag(node, 284 /* JSDocTemplateTag */);
     }
     ts.getJSDocTemplateTag = getJSDocTemplateTag;
-    function getCorrespondingJSDocParameterTag(parameter) {
-        if (parameter.name && parameter.name.kind === 70 /* Identifier */) {
-            // If it's a parameter, see if the parent has a jsdoc comment with an @param
-            // annotation.
-            var parameterName = parameter.name.text;
-            var jsDocTags = getJSDocTags(parameter.parent, /*checkParentVariableStatement*/ true);
-            if (!jsDocTags) {
-                return undefined;
-            }
-            for (var _i = 0, jsDocTags_2 = jsDocTags; _i < jsDocTags_2.length; _i++) {
-                var tag = jsDocTags_2[_i];
-                if (tag.kind === 280 /* JSDocParameterTag */) {
-                    var parameterTag = tag;
-                    if (parameterTag.parameterName.text === parameterName) {
-                        return parameterTag;
-                    }
-                }
-            }
-        }
-        return undefined;
-    }
-    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
     function hasRestParameter(s) {
         return isRestParameter(ts.lastOrUndefined(s.parameters));
     }
@@ -7862,13 +7867,10 @@ var ts;
     ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
     function isRestParameter(node) {
         if (node && (node.flags & 2097152 /* JavaScriptFile */)) {
-            if (node.type && node.type.kind === 275 /* JSDocVariadicType */) {
+            if (node.type && node.type.kind === 275 /* JSDocVariadicType */ ||
+                ts.forEach(getJSDocParameterTags(node), function (t) { return t.typeExpression && t.typeExpression.type.kind === 275 /* JSDocVariadicType */; })) {
                 return true;
             }
-            var paramTag = getCorrespondingJSDocParameterTag(node);
-            if (paramTag && paramTag.typeExpression) {
-                return paramTag.typeExpression.type.kind === 275 /* JSDocVariadicType */;
-            }
         }
         return isDeclaredRestParam(node);
     }
@@ -8115,8 +8117,10 @@ var ts;
         return isFunctionLike(node) && hasModifier(node, 256 /* Async */) && !isAccessor(node);
     }
     ts.isAsyncFunctionLike = isAsyncFunctionLike;
-    function isStringOrNumericLiteral(kind) {
-        return kind === 9 /* StringLiteral */ || kind === 8 /* NumericLiteral */;
+    function isStringOrNumericLiteral(node) {
+        var kind = node.kind;
+        return kind === 9 /* StringLiteral */
+            || kind === 8 /* NumericLiteral */;
     }
     ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
     /**
@@ -8132,7 +8136,7 @@ var ts;
     ts.hasDynamicName = hasDynamicName;
     function isDynamicName(name) {
         return name.kind === 142 /* ComputedPropertyName */ &&
-            !isStringOrNumericLiteral(name.expression.kind) &&
+            !isStringOrNumericLiteral(name.expression) &&
             !isWellKnownSymbolSyntactically(name.expression);
     }
     ts.isDynamicName = isDynamicName;
@@ -8356,6 +8360,7 @@ var ts;
             case 194 /* TemplateExpression */:
             case 183 /* ParenthesizedExpression */:
             case 198 /* OmittedExpression */:
+            case 297 /* RawExpression */:
                 return 19;
             case 181 /* TaggedTemplateExpression */:
             case 177 /* PropertyAccessExpression */:
@@ -9226,19 +9231,19 @@ var ts;
         }
     }
     ts.tryGetClassExtendingExpressionWithTypeArguments = tryGetClassExtendingExpressionWithTypeArguments;
-    function isAssignmentExpression(node) {
+    function isAssignmentExpression(node, excludeCompoundAssignment) {
         return isBinaryExpression(node)
-            && isAssignmentOperator(node.operatorToken.kind)
+            && (excludeCompoundAssignment
+                ? node.operatorToken.kind === 57 /* EqualsToken */
+                : isAssignmentOperator(node.operatorToken.kind))
             && isLeftHandSideExpression(node.left);
     }
     ts.isAssignmentExpression = isAssignmentExpression;
     function isDestructuringAssignment(node) {
-        if (isBinaryExpression(node)) {
-            if (node.operatorToken.kind === 57 /* EqualsToken */) {
-                var kind = node.left.kind;
-                return kind === 176 /* ObjectLiteralExpression */
-                    || kind === 175 /* ArrayLiteralExpression */;
-            }
+        if (isAssignmentExpression(node, /*excludeCompoundAssignment*/ true)) {
+            var kind = node.left.kind;
+            return kind === 176 /* ObjectLiteralExpression */
+                || kind === 175 /* ArrayLiteralExpression */;
         }
         return false;
     }
@@ -9632,135 +9637,6 @@ var ts;
         return ts.positionIsSynthesized(range.pos) ? -1 : ts.skipTrivia(sourceFile.text, range.pos);
     }
     ts.getStartPositionOfRange = getStartPositionOfRange;
-    function collectExternalModuleInfo(sourceFile, resolver) {
-        var externalImports = [];
-        var exportSpecifiers = ts.createMap();
-        var exportedBindings = ts.createMap();
-        var uniqueExports = ts.createMap();
-        var hasExportDefault = false;
-        var exportEquals = undefined;
-        var hasExportStarsToExportValues = false;
-        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
-            var node = _a[_i];
-            switch (node.kind) {
-                case 235 /* ImportDeclaration */:
-                    // import "mod"
-                    // import x from "mod"
-                    // import * as x from "mod"
-                    // import { x, y } from "mod"
-                    externalImports.push(node);
-                    break;
-                case 234 /* ImportEqualsDeclaration */:
-                    if (node.moduleReference.kind === 245 /* ExternalModuleReference */) {
-                        // import x = require("mod")
-                        externalImports.push(node);
-                    }
-                    break;
-                case 241 /* ExportDeclaration */:
-                    if (node.moduleSpecifier) {
-                        if (!node.exportClause) {
-                            // export * from "mod"
-                            externalImports.push(node);
-                            hasExportStarsToExportValues = true;
-                        }
-                        else {
-                            // export { x, y } from "mod"
-                            externalImports.push(node);
-                        }
-                    }
-                    else {
-                        // export { x, y }
-                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
-                            var specifier = _c[_b];
-                            if (!uniqueExports[specifier.name.text]) {
-                                var name_8 = specifier.propertyName || specifier.name;
-                                ts.multiMapAdd(exportSpecifiers, name_8.text, specifier);
-                                var decl = resolver.getReferencedImportDeclaration(name_8)
-                                    || resolver.getReferencedValueDeclaration(name_8);
-                                if (decl) {
-                                    ts.multiMapAdd(exportedBindings, getOriginalNodeId(decl), specifier.name);
-                                }
-                                uniqueExports[specifier.name.text] = specifier.name;
-                            }
-                        }
-                    }
-                    break;
-                case 240 /* ExportAssignment */:
-                    if (node.isExportEquals && !exportEquals) {
-                        // export = x
-                        exportEquals = node;
-                    }
-                    break;
-                case 205 /* VariableStatement */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
-                            var decl = _e[_d];
-                            collectExportedVariableInfo(decl, uniqueExports);
-                        }
-                    }
-                    break;
-                case 225 /* FunctionDeclaration */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        if (hasModifier(node, 512 /* Default */)) {
-                            // export default function() { }
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            // export function x() { }
-                            var name_9 = node.name;
-                            if (!uniqueExports[name_9.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_9);
-                                uniqueExports[name_9.text] = name_9;
-                            }
-                        }
-                    }
-                    break;
-                case 226 /* ClassDeclaration */:
-                    if (hasModifier(node, 1 /* Export */)) {
-                        if (hasModifier(node, 512 /* Default */)) {
-                            // export default class { }
-                            if (!hasExportDefault) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), ts.getDeclarationName(node));
-                                hasExportDefault = true;
-                            }
-                        }
-                        else {
-                            // export class x { }
-                            var name_10 = node.name;
-                            if (!uniqueExports[name_10.text]) {
-                                ts.multiMapAdd(exportedBindings, getOriginalNodeId(node), name_10);
-                                uniqueExports[name_10.text] = name_10;
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        var exportedNames;
-        for (var key in uniqueExports) {
-            exportedNames = ts.append(exportedNames, uniqueExports[key]);
-        }
-        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames };
-    }
-    ts.collectExternalModuleInfo = collectExternalModuleInfo;
-    function collectExportedVariableInfo(decl, uniqueExports) {
-        if (isBindingPattern(decl.name)) {
-            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
-                var element = _a[_i];
-                if (!isOmittedExpression(element)) {
-                    collectExportedVariableInfo(element, uniqueExports);
-                }
-            }
-        }
-        else if (!isGeneratedIdentifier(decl.name)) {
-            if (!uniqueExports[decl.name.text]) {
-                uniqueExports[decl.name.text] = decl.name;
-            }
-        }
-    }
     /**
      * Determines whether a name was originally the declaration name of an enum or namespace
      * declaration.
@@ -9964,6 +9840,14 @@ var ts;
     }
     ts.isTypeNode = isTypeNode;
     // Binding patterns
+    function isArrayBindingPattern(node) {
+        return node.kind === 173 /* ArrayBindingPattern */;
+    }
+    ts.isArrayBindingPattern = isArrayBindingPattern;
+    function isObjectBindingPattern(node) {
+        return node.kind === 172 /* ObjectBindingPattern */;
+    }
+    ts.isObjectBindingPattern = isObjectBindingPattern;
     function isBindingPattern(node) {
         if (node) {
             var kind = node.kind;
@@ -9973,6 +9857,12 @@ var ts;
         return false;
     }
     ts.isBindingPattern = isBindingPattern;
+    function isAssignmentPattern(node) {
+        var kind = node.kind;
+        return kind === 175 /* ArrayLiteralExpression */
+            || kind === 176 /* ObjectLiteralExpression */;
+    }
+    ts.isAssignmentPattern = isAssignmentPattern;
     function isBindingElement(node) {
         return node.kind === 174 /* BindingElement */;
     }
@@ -9983,6 +9873,51 @@ var ts;
             || kind === 198 /* OmittedExpression */;
     }
     ts.isArrayBindingElement = isArrayBindingElement;
+    /**
+     * Determines whether the BindingOrAssignmentElement is a BindingElement-like declaration
+     */
+    function isDeclarationBindingElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 223 /* VariableDeclaration */:
+            case 144 /* Parameter */:
+            case 174 /* BindingElement */:
+                return true;
+        }
+        return false;
+    }
+    ts.isDeclarationBindingElement = isDeclarationBindingElement;
+    /**
+     * Determines whether a node is a BindingOrAssignmentPattern
+     */
+    function isBindingOrAssignmentPattern(node) {
+        return isObjectBindingOrAssignmentPattern(node)
+            || isArrayBindingOrAssignmentPattern(node);
+    }
+    ts.isBindingOrAssignmentPattern = isBindingOrAssignmentPattern;
+    /**
+     * Determines whether a node is an ObjectBindingOrAssignmentPattern
+     */
+    function isObjectBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 172 /* ObjectBindingPattern */:
+            case 176 /* ObjectLiteralExpression */:
+                return true;
+        }
+        return false;
+    }
+    ts.isObjectBindingOrAssignmentPattern = isObjectBindingOrAssignmentPattern;
+    /**
+     * Determines whether a node is an ArrayBindingOrAssignmentPattern
+     */
+    function isArrayBindingOrAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                return true;
+        }
+        return false;
+    }
+    ts.isArrayBindingOrAssignmentPattern = isArrayBindingOrAssignmentPattern;
     // Expression
     function isArrayLiteralExpression(node) {
         return node.kind === 175 /* ArrayLiteralExpression */;
@@ -10050,7 +9985,8 @@ var ts;
             || kind === 98 /* ThisKeyword */
             || kind === 100 /* TrueKeyword */
             || kind === 96 /* SuperKeyword */
-            || kind === 201 /* NonNullExpression */;
+            || kind === 201 /* NonNullExpression */
+            || kind === 297 /* RawExpression */;
     }
     function isLeftHandSideExpression(node) {
         return isLeftHandSideExpressionKind(ts.skipPartiallyEmittedExpressions(node).kind);
@@ -10078,6 +10014,7 @@ var ts;
             || kind === 196 /* SpreadElement */
             || kind === 200 /* AsExpression */
             || kind === 198 /* OmittedExpression */
+            || kind === 297 /* RawExpression */
             || isUnaryExpressionKind(kind);
     }
     function isExpression(node) {
@@ -10091,11 +10028,11 @@ var ts;
     }
     ts.isAssertionExpression = isAssertionExpression;
     function isPartiallyEmittedExpression(node) {
-        return node.kind === 293 /* PartiallyEmittedExpression */;
+        return node.kind === 294 /* PartiallyEmittedExpression */;
     }
     ts.isPartiallyEmittedExpression = isPartiallyEmittedExpression;
     function isNotEmittedStatement(node) {
-        return node.kind === 292 /* NotEmittedStatement */;
+        return node.kind === 293 /* NotEmittedStatement */;
     }
     ts.isNotEmittedStatement = isNotEmittedStatement;
     function isNotEmittedOrPartiallyEmittedNode(node) {
@@ -10209,7 +10146,7 @@ var ts;
             || kind === 228 /* TypeAliasDeclaration */
             || kind === 143 /* TypeParameter */
             || kind === 223 /* VariableDeclaration */
-            || kind === 284 /* JSDocTypedefTag */;
+            || kind === 285 /* JSDocTypedefTag */;
     }
     function isDeclarationStatementKind(kind) {
         return kind === 225 /* FunctionDeclaration */
@@ -10244,9 +10181,9 @@ var ts;
             || kind === 205 /* VariableStatement */
             || kind === 210 /* WhileStatement */
             || kind === 217 /* WithStatement */
-            || kind === 292 /* NotEmittedStatement */
-            || kind === 295 /* EndOfDeclarationMarker */
-            || kind === 294 /* MergeDeclarationMarker */;
+            || kind === 293 /* NotEmittedStatement */
+            || kind === 296 /* EndOfDeclarationMarker */
+            || kind === 295 /* MergeDeclarationMarker */;
     }
     function isDeclaration(node) {
         return isDeclarationKind(node.kind);
@@ -10641,6 +10578,60 @@ var ts;
         return flags;
     }
     ts.getCombinedNodeFlags = getCombinedNodeFlags;
+    /**
+      * Checks to see if the locale is in the appropriate format,
+      * and if it is, attempts to set the appropriate language.
+      */
+    function validateLocaleAndSetLanguage(locale, sys, errors) {
+        var matchResult = /^([a-z]+)([_\-]([a-z]+))?$/.exec(locale.toLowerCase());
+        if (!matchResult) {
+            if (errors) {
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1, "en", "ja-jp"));
+            }
+            return;
+        }
+        var language = matchResult[1];
+        var territory = matchResult[3];
+        // First try the entire locale, then fall back to just language if that's all we have.
+        // Either ways do not fail, and fallback to the English diagnostic strings.
+        if (!trySetLanguageAndTerritory(language, territory, errors)) {
+            trySetLanguageAndTerritory(language, /*territory*/ undefined, errors);
+        }
+        function trySetLanguageAndTerritory(language, territory, errors) {
+            var compilerFilePath = ts.normalizePath(sys.getExecutingFilePath());
+            var containingDirectoryPath = ts.getDirectoryPath(compilerFilePath);
+            var filePath = ts.combinePaths(containingDirectoryPath, language);
+            if (territory) {
+                filePath = filePath + "-" + territory;
+            }
+            filePath = sys.resolvePath(ts.combinePaths(filePath, "diagnosticMessages.generated.json"));
+            if (!sys.fileExists(filePath)) {
+                return false;
+            }
+            // TODO: Add codePage support for readFile?
+            var fileContents = "";
+            try {
+                fileContents = sys.readFile(filePath);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unable_to_open_file_0, filePath));
+                }
+                return false;
+            }
+            try {
+                ts.localizedDiagnosticMessages = JSON.parse(fileContents);
+            }
+            catch (e) {
+                if (errors) {
+                    errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Corrupted_locale_file_0, filePath));
+                }
+                return false;
+            }
+            return true;
+        }
+    }
+    ts.validateLocaleAndSetLanguage = validateLocaleAndSetLanguage;
 })(ts || (ts = {}));
 /// <reference path="core.ts"/>
 /// <reference path="utilities.ts"/>
@@ -10858,9 +10849,9 @@ var ts;
         return node;
     }
     ts.createParameter = createParameter;
-    function updateParameter(node, decorators, modifiers, name, type, initializer) {
-        if (node.decorators !== decorators || node.modifiers !== modifiers || node.name !== name || node.type !== type || node.initializer !== initializer) {
-            return updateNode(createParameter(decorators, modifiers, node.dotDotDotToken, name, node.questionToken, type, initializer, /*location*/ node, /*flags*/ node.flags), node);
+    function updateParameter(node, decorators, modifiers, dotDotDotToken, name, type, initializer) {
+        if (node.decorators !== decorators || node.modifiers !== modifiers || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.type !== type || node.initializer !== initializer) {
+            return updateNode(createParameter(decorators, modifiers, dotDotDotToken, name, node.questionToken, type, initializer, /*location*/ node, /*flags*/ node.flags), node);
         }
         return node;
     }
@@ -10995,9 +10986,9 @@ var ts;
         return node;
     }
     ts.createBindingElement = createBindingElement;
-    function updateBindingElement(node, propertyName, name, initializer) {
-        if (node.propertyName !== propertyName || node.name !== name || node.initializer !== initializer) {
-            return updateNode(createBindingElement(propertyName, node.dotDotDotToken, name, initializer, node), node);
+    function updateBindingElement(node, dotDotDotToken, propertyName, name, initializer) {
+        if (node.propertyName !== propertyName || node.dotDotDotToken !== dotDotDotToken || node.name !== name || node.initializer !== initializer) {
+            return updateNode(createBindingElement(propertyName, dotDotDotToken, name, initializer, node), node);
         }
         return node;
     }
@@ -11038,7 +11029,7 @@ var ts;
     function createPropertyAccess(expression, name, location, flags) {
         var node = createNode(177 /* PropertyAccessExpression */, location, flags);
         node.expression = parenthesizeForAccess(expression);
-        (node.emitNode || (node.emitNode = {})).flags |= 1048576 /* NoIndentation */;
+        (node.emitNode || (node.emitNode = {})).flags |= 65536 /* NoIndentation */;
         node.name = typeof name === "string" ? createIdentifier(name) : name;
         return node;
     }
@@ -11260,13 +11251,23 @@ var ts;
         return node;
     }
     ts.updateBinary = updateBinary;
-    function createConditional(condition, questionToken, whenTrue, colonToken, whenFalse, location) {
-        var node = createNode(193 /* ConditionalExpression */, location);
-        node.condition = condition;
-        node.questionToken = questionToken;
-        node.whenTrue = whenTrue;
-        node.colonToken = colonToken;
-        node.whenFalse = whenFalse;
+    function createConditional(condition, questionTokenOrWhenTrue, whenTrueOrWhenFalse, colonTokenOrLocation, whenFalse, location) {
+        var node = createNode(193 /* ConditionalExpression */, whenFalse ? location : colonTokenOrLocation);
+        node.condition = parenthesizeForConditionalHead(condition);
+        if (whenFalse) {
+            // second overload
+            node.questionToken = questionTokenOrWhenTrue;
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+            node.colonToken = colonTokenOrLocation;
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenFalse);
+        }
+        else {
+            // first overload
+            node.questionToken = createToken(54 /* QuestionToken */);
+            node.whenTrue = parenthesizeSubexpressionOfConditionalExpression(questionTokenOrWhenTrue);
+            node.colonToken = createToken(55 /* ColonToken */);
+            node.whenFalse = parenthesizeSubexpressionOfConditionalExpression(whenTrueOrWhenFalse);
+        }
         return node;
     }
     ts.createConditional = createConditional;
@@ -12082,8 +12083,6 @@ var ts;
                 updated.imports = node.imports;
             if (node.moduleAugmentations !== undefined)
                 updated.moduleAugmentations = node.moduleAugmentations;
-            if (node.externalHelpersModuleName !== undefined)
-                updated.externalHelpersModuleName = node.externalHelpersModuleName;
             return updateNode(updated, node);
         }
         return node;
@@ -12097,7 +12096,7 @@ var ts;
      * @param original The original statement.
      */
     function createNotEmittedStatement(original) {
-        var node = createNode(292 /* NotEmittedStatement */, /*location*/ original);
+        var node = createNode(293 /* NotEmittedStatement */, /*location*/ original);
         node.original = original;
         return node;
     }
@@ -12107,7 +12106,7 @@ var ts;
      * order to properly emit exports.
      */
     function createEndOfDeclarationMarker(original) {
-        var node = createNode(295 /* EndOfDeclarationMarker */);
+        var node = createNode(296 /* EndOfDeclarationMarker */);
         node.emitNode = {};
         node.original = original;
         return node;
@@ -12118,7 +12117,7 @@ var ts;
      * order to properly emit exports.
      */
     function createMergeDeclarationMarker(original) {
-        var node = createNode(294 /* MergeDeclarationMarker */);
+        var node = createNode(295 /* MergeDeclarationMarker */);
         node.emitNode = {};
         node.original = original;
         return node;
@@ -12133,7 +12132,7 @@ var ts;
      * @param location The location for the expression. Defaults to the positions from "original" if provided.
      */
     function createPartiallyEmittedExpression(expression, original, location) {
-        var node = createNode(293 /* PartiallyEmittedExpression */, /*location*/ location || original);
+        var node = createNode(294 /* PartiallyEmittedExpression */, /*location*/ location || original);
         node.expression = expression;
         node.original = original;
         return node;
@@ -12146,6 +12145,19 @@ var ts;
         return node;
     }
     ts.updatePartiallyEmittedExpression = updatePartiallyEmittedExpression;
+    /**
+     * Creates a node that emits a string of raw text in an expression position. Raw text is never
+     * transformed, should be ES3 compliant, and should have the same precedence as
+     * PrimaryExpression.
+     *
+     * @param text The raw text of the node.
+     */
+    function createRawExpression(text) {
+        var node = createNode(297 /* RawExpression */);
+        node.text = text;
+        return node;
+    }
+    ts.createRawExpression = createRawExpression;
     // Compound nodes
     function createComma(left, right) {
         return createBinary(left, 25 /* CommaToken */, right);
@@ -12195,13 +12207,19 @@ var ts;
         return createVoid(createLiteral(0));
     }
     ts.createVoidZero = createVoidZero;
+    function createTypeCheck(value, tag) {
+        return tag === "undefined"
+            ? createStrictEquality(value, createVoidZero())
+            : createStrictEquality(createTypeOf(value), createLiteral(tag));
+    }
+    ts.createTypeCheck = createTypeCheck;
     function createMemberAccessForPropertyName(target, memberName, location) {
         if (ts.isComputedPropertyName(memberName)) {
             return createElementAccess(target, memberName.expression, location);
         }
         else {
             var expression = ts.isIdentifier(memberName) ? createPropertyAccess(target, memberName, location) : createElementAccess(target, memberName, location);
-            (expression.emitNode || (expression.emitNode = {})).flags |= 2048 /* NoNestedSourceMaps */;
+            (expression.emitNode || (expression.emitNode = {})).flags |= 64 /* NoNestedSourceMaps */;
             return expression;
         }
     }
@@ -12245,14 +12263,17 @@ var ts;
         // flag and setting a parent node.
         var react = createIdentifier(reactNamespace || "React");
         react.flags &= ~8 /* Synthesized */;
-        // Set the parent that is in parse tree 
+        // Set the parent that is in parse tree
         // this makes sure that parent chain is intact for checker to traverse complete scope tree
         react.parent = ts.getParseTreeNode(parent);
         return react;
     }
     function createJsxFactoryExpressionFromEntityName(jsxFactory, parent) {
         if (ts.isQualifiedName(jsxFactory)) {
-            return createPropertyAccess(createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent), setEmitFlags(getMutableClone(jsxFactory.right), 1536 /* NoSourceMap */));
+            var left = createJsxFactoryExpressionFromEntityName(jsxFactory.left, parent);
+            var right = createSynthesizedNode(70 /* Identifier */);
+            right.text = jsxFactory.right.text;
+            return createPropertyAccess(left, right);
         }
         else {
             return createReactNamespace(jsxFactory.text, parent);
@@ -12308,170 +12329,10 @@ var ts;
     }
     ts.createConstDeclarationList = createConstDeclarationList;
     // Helpers
-    function createHelperName(externalHelpersModuleName, name) {
-        return externalHelpersModuleName
-            ? createPropertyAccess(externalHelpersModuleName, name)
-            : createIdentifier(name);
-    }
-    ts.createHelperName = createHelperName;
-    function createExtendsHelper(externalHelpersModuleName, name) {
-        return createCall(createHelperName(externalHelpersModuleName, "__extends"), 
-        /*typeArguments*/ undefined, [
-            name,
-            createIdentifier("_super")
-        ]);
-    }
-    ts.createExtendsHelper = createExtendsHelper;
-    function createAssignHelper(externalHelpersModuleName, attributesSegments) {
-        return createCall(createHelperName(externalHelpersModuleName, "__assign"), 
-        /*typeArguments*/ undefined, attributesSegments);
-    }
-    ts.createAssignHelper = createAssignHelper;
-    function createParamHelper(externalHelpersModuleName, expression, parameterOffset, location) {
-        return createCall(createHelperName(externalHelpersModuleName, "__param"), 
-        /*typeArguments*/ undefined, [
-            createLiteral(parameterOffset),
-            expression
-        ], location);
-    }
-    ts.createParamHelper = createParamHelper;
-    function createMetadataHelper(externalHelpersModuleName, metadataKey, metadataValue) {
-        return createCall(createHelperName(externalHelpersModuleName, "__metadata"), 
-        /*typeArguments*/ undefined, [
-            createLiteral(metadataKey),
-            metadataValue
-        ]);
-    }
-    ts.createMetadataHelper = createMetadataHelper;
-    function createDecorateHelper(externalHelpersModuleName, decoratorExpressions, target, memberName, descriptor, location) {
-        var argumentsArray = [];
-        argumentsArray.push(createArrayLiteral(decoratorExpressions, /*location*/ undefined, /*multiLine*/ true));
-        argumentsArray.push(target);
-        if (memberName) {
-            argumentsArray.push(memberName);
-            if (descriptor) {
-                argumentsArray.push(descriptor);
-            }
-        }
-        return createCall(createHelperName(externalHelpersModuleName, "__decorate"), /*typeArguments*/ undefined, argumentsArray, location);
-    }
-    ts.createDecorateHelper = createDecorateHelper;
-    function createAwaiterHelper(externalHelpersModuleName, hasLexicalArguments, promiseConstructor, body) {
-        var generatorFunc = createFunctionExpression(
-        /*modifiers*/ undefined, createToken(38 /* AsteriskToken */), 
-        /*name*/ undefined, 
-        /*typeParameters*/ undefined, 
-        /*parameters*/ [], 
-        /*type*/ undefined, body);
-        // Mark this node as originally an async function
-        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 2097152 /* AsyncFunctionBody */;
-        return createCall(createHelperName(externalHelpersModuleName, "__awaiter"), 
-        /*typeArguments*/ undefined, [
-            createThis(),
-            hasLexicalArguments ? createIdentifier("arguments") : createVoidZero(),
-            promiseConstructor ? createExpressionFromEntityName(promiseConstructor) : createVoidZero(),
-            generatorFunc
-        ]);
+    function getHelperName(name) {
+        return setEmitFlags(createIdentifier(name), 4096 /* HelperName */ | 2 /* AdviseOnEmitNode */);
     }
-    ts.createAwaiterHelper = createAwaiterHelper;
-    function createHasOwnProperty(target, propertyName) {
-        return createCall(createPropertyAccess(target, "hasOwnProperty"), 
-        /*typeArguments*/ undefined, [propertyName]);
-    }
-    ts.createHasOwnProperty = createHasOwnProperty;
-    function createObjectCreate(prototype) {
-        return createCall(createPropertyAccess(createIdentifier("Object"), "create"), 
-        /*typeArguments*/ undefined, [prototype]);
-    }
-    function createGeti(target) {
-        // name => super[name]
-        return createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name")], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createElementAccess(target, createIdentifier("name")));
-    }
-    function createSeti(target) {
-        // (name, value) => super[name] = value
-        return createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [
-            createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name"),
-            createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "value")
-        ], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createAssignment(createElementAccess(target, createIdentifier("name")), createIdentifier("value")));
-    }
-    function createAdvancedAsyncSuperHelper() {
-        //  const _super = (function (geti, seti) {
-        //      const cache = Object.create(null);
-        //      return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });
-        //  })(name => super[name], (name, value) => super[name] = value);
-        // const cache = Object.create(null);
-        var createCache = createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("cache", 
-            /*type*/ undefined, createObjectCreate(createNull()))
-        ]));
-        // get value() { return geti(name); }
-        var getter = createGetAccessor(
-        /*decorators*/ undefined, 
-        /*modifiers*/ undefined, "value", 
-        /*parameters*/ [], 
-        /*type*/ undefined, createBlock([
-            createReturn(createCall(createIdentifier("geti"), 
-            /*typeArguments*/ undefined, [createIdentifier("name")]))
-        ]));
-        // set value(v) { seti(name, v); }
-        var setter = createSetAccessor(
-        /*decorators*/ undefined, 
-        /*modifiers*/ undefined, "value", [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "v")], createBlock([
-            createStatement(createCall(createIdentifier("seti"), 
-            /*typeArguments*/ undefined, [
-                createIdentifier("name"),
-                createIdentifier("v")
-            ]))
-        ]));
-        // return name => cache[name] || ...
-        var getOrCreateAccessorsForName = createReturn(createArrowFunction(
-        /*modifiers*/ undefined, 
-        /*typeParameters*/ undefined, [createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "name")], 
-        /*type*/ undefined, createToken(35 /* EqualsGreaterThanToken */), createLogicalOr(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createParen(createAssignment(createElementAccess(createIdentifier("cache"), createIdentifier("name")), createObjectLiteral([
-            getter,
-            setter
-        ]))))));
-        //  const _super = (function (geti, seti) {
-        //      const cache = Object.create(null);
-        //      return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });
-        //  })(name => super[name], (name, value) => super[name] = value);
-        return createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", 
-            /*type*/ undefined, createCall(createParen(createFunctionExpression(
-            /*modifiers*/ undefined, 
-            /*asteriskToken*/ undefined, 
-            /*name*/ undefined, 
-            /*typeParameters*/ undefined, [
-                createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "geti"),
-                createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, "seti")
-            ], 
-            /*type*/ undefined, createBlock([
-                createCache,
-                getOrCreateAccessorsForName
-            ]))), 
-            /*typeArguments*/ undefined, [
-                createGeti(createSuper()),
-                createSeti(createSuper())
-            ]))
-        ]));
-    }
-    ts.createAdvancedAsyncSuperHelper = createAdvancedAsyncSuperHelper;
-    function createSimpleAsyncSuperHelper() {
-        return createVariableStatement(
-        /*modifiers*/ undefined, createConstDeclarationList([
-            createVariableDeclaration("_super", 
-            /*type*/ undefined, createGeti(createSuper()))
-        ]));
-    }
-    ts.createSimpleAsyncSuperHelper = createSimpleAsyncSuperHelper;
+    ts.getHelperName = getHelperName;
     function shouldBeCapturedInTempVariable(node, cacheIdentifiers) {
         var target = skipParentheses(node);
         switch (target.kind) {
@@ -12657,14 +12518,14 @@ var ts;
      * @param allowSourceMaps A value indicating whether source maps may be emitted for the name.
      */
     function getLocalName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 262144 /* LocalName */);
+        return getName(node, allowComments, allowSourceMaps, 16384 /* LocalName */);
     }
     ts.getLocalName = getLocalName;
     /**
      * Gets whether an identifier should only be referred to by its local name.
      */
     function isLocalName(node) {
-        return (getEmitFlags(node) & 262144 /* LocalName */) !== 0;
+        return (getEmitFlags(node) & 16384 /* LocalName */) !== 0;
     }
     ts.isLocalName = isLocalName;
     /**
@@ -12678,7 +12539,7 @@ var ts;
      * @param allowSourceMaps A value indicating whether source maps may be emitted for the name.
      */
     function getExportName(node, allowComments, allowSourceMaps) {
-        return getName(node, allowComments, allowSourceMaps, 131072 /* ExportName */);
+        return getName(node, allowComments, allowSourceMaps, 8192 /* ExportName */);
     }
     ts.getExportName = getExportName;
     /**
@@ -12686,7 +12547,7 @@ var ts;
      * name points to an exported symbol.
      */
     function isExportName(node) {
-        return (getEmitFlags(node) & 131072 /* ExportName */) !== 0;
+        return (getEmitFlags(node) & 8192 /* ExportName */) !== 0;
     }
     ts.isExportName = isExportName;
     /**
@@ -12702,15 +12563,15 @@ var ts;
     ts.getDeclarationName = getDeclarationName;
     function getName(node, allowComments, allowSourceMaps, emitFlags) {
         if (node.name && ts.isIdentifier(node.name) && !ts.isGeneratedIdentifier(node.name)) {
-            var name_11 = getMutableClone(node.name);
+            var name_8 = getMutableClone(node.name);
             emitFlags |= getEmitFlags(node.name);
             if (!allowSourceMaps)
-                emitFlags |= 1536 /* NoSourceMap */;
+                emitFlags |= 48 /* NoSourceMap */;
             if (!allowComments)
-                emitFlags |= 49152 /* NoComments */;
+                emitFlags |= 1536 /* NoComments */;
             if (emitFlags)
-                setEmitFlags(name_11, emitFlags);
-            return name_11;
+                setEmitFlags(name_8, emitFlags);
+            return name_8;
         }
         return getGeneratedNameForNode(node);
     }
@@ -12744,15 +12605,18 @@ var ts;
         var qualifiedName = createPropertyAccess(ns, ts.nodeIsSynthesized(name) ? name : getSynthesizedClone(name), /*location*/ name);
         var emitFlags;
         if (!allowSourceMaps)
-            emitFlags |= 1536 /* NoSourceMap */;
+            emitFlags |= 48 /* NoSourceMap */;
         if (!allowComments)
-            emitFlags |= 49152 /* NoComments */;
+            emitFlags |= 1536 /* NoComments */;
         if (emitFlags)
             setEmitFlags(qualifiedName, emitFlags);
         return qualifiedName;
     }
     ts.getNamespaceMemberName = getNamespaceMemberName;
-    // Utilities
+    function convertToFunctionBody(node, multiLine) {
+        return ts.isBlock(node) ? node : createBlock([createReturn(node, /*location*/ node)], /*location*/ node, multiLine);
+    }
+    ts.convertToFunctionBody = convertToFunctionBody;
     function isUseStrictPrologue(node) {
         return node.expression.text === "use strict";
     }
@@ -12790,7 +12654,7 @@ var ts;
         }
         while (statementOffset < numStatements) {
             var statement = source[statementOffset];
-            if (getEmitFlags(statement) & 8388608 /* CustomPrologue */) {
+            if (getEmitFlags(statement) & 524288 /* CustomPrologue */) {
                 target.push(visitor ? ts.visitNode(statement, visitor, ts.isStatement) : statement);
             }
             else {
@@ -12801,15 +12665,22 @@ var ts;
         return statementOffset;
     }
     ts.addPrologueDirectives = addPrologueDirectives;
+    function startsWithUseStrict(statements) {
+        var firstStatement = ts.firstOrUndefined(statements);
+        return firstStatement !== undefined
+            && ts.isPrologueDirective(firstStatement)
+            && isUseStrictPrologue(firstStatement);
+    }
+    ts.startsWithUseStrict = startsWithUseStrict;
     /**
      * Ensures "use strict" directive is added
      *
-     * @param node source file
+     * @param statements An array of statements
      */
-    function ensureUseStrict(node) {
+    function ensureUseStrict(statements) {
         var foundUseStrict = false;
-        for (var _i = 0, _a = node.statements; _i < _a.length; _i++) {
-            var statement = _a[_i];
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
             if (ts.isPrologueDirective(statement)) {
                 if (isUseStrictPrologue(statement)) {
                     foundUseStrict = true;
@@ -12821,12 +12692,11 @@ var ts;
             }
         }
         if (!foundUseStrict) {
-            var statements = [];
-            statements.push(startOnNewLine(createStatement(createLiteral("use strict"))));
-            // add "use strict" as the first statement
-            return updateSourceFileNode(node, statements.concat(node.statements));
+            return createNodeArray([
+                startOnNewLine(createStatement(createLiteral("use strict")))
+            ].concat(statements), statements);
         }
-        return node;
+        return statements;
     }
     ts.ensureUseStrict = ensureUseStrict;
     /**
@@ -12987,6 +12857,24 @@ var ts;
         }
         return 0 /* Unknown */;
     }
+    function parenthesizeForConditionalHead(condition) {
+        var conditionalPrecedence = ts.getOperatorPrecedence(193 /* ConditionalExpression */, 54 /* QuestionToken */);
+        var emittedCondition = skipPartiallyEmittedExpressions(condition);
+        var conditionPrecedence = ts.getExpressionPrecedence(emittedCondition);
+        if (ts.compareValues(conditionPrecedence, conditionalPrecedence) === -1 /* LessThan */) {
+            return createParen(condition);
+        }
+        return condition;
+    }
+    ts.parenthesizeForConditionalHead = parenthesizeForConditionalHead;
+    function parenthesizeSubexpressionOfConditionalExpression(e) {
+        // per ES grammar both 'whenTrue' and 'whenFalse' parts of conditional expression are assignment expressions
+        // so in case when comma expression is introduced as a part of previous transformations
+        // if should be wrapped in parens since comma operator has the lowest precedence
+        return e.kind === 192 /* BinaryExpression */ && e.operatorToken.kind === 25 /* CommaToken */
+            ? createParen(e)
+            : e;
+    }
     /**
      * Wraps an expression in parentheses if it is needed in order to use the expression
      * as the expression of a NewExpression node.
@@ -13118,7 +13006,7 @@ var ts;
                 case 177 /* PropertyAccessExpression */:
                     node = node.expression;
                     continue;
-                case 293 /* PartiallyEmittedExpression */:
+                case 294 /* PartiallyEmittedExpression */:
                     node = node.expression;
                     continue;
             }
@@ -13173,7 +13061,7 @@ var ts;
     }
     ts.skipAssertions = skipAssertions;
     function skipPartiallyEmittedExpressions(node) {
-        while (node.kind === 293 /* PartiallyEmittedExpression */) {
+        while (node.kind === 294 /* PartiallyEmittedExpression */) {
             node = node.expression;
         }
         return node;
@@ -13195,8 +13083,8 @@ var ts;
     }
     ts.setOriginalNode = setOriginalNode;
     function mergeEmitNode(sourceEmitNode, destEmitNode) {
-        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges;
-        if (!destEmitNode && (flags || commentRange || sourceMapRange || tokenSourceMapRanges))
+        var flags = sourceEmitNode.flags, commentRange = sourceEmitNode.commentRange, sourceMapRange = sourceEmitNode.sourceMapRange, tokenSourceMapRanges = sourceEmitNode.tokenSourceMapRanges, constantValue = sourceEmitNode.constantValue, helpers = sourceEmitNode.helpers;
+        if (!destEmitNode)
             destEmitNode = {};
         if (flags)
             destEmitNode.flags = flags;
@@ -13206,6 +13094,10 @@ var ts;
             destEmitNode.sourceMapRange = sourceMapRange;
         if (tokenSourceMapRanges)
             destEmitNode.tokenSourceMapRanges = mergeTokenSourceMapRanges(tokenSourceMapRanges, destEmitNode.tokenSourceMapRanges);
+        if (constantValue !== undefined)
+            destEmitNode.constantValue = constantValue;
+        if (helpers)
+            destEmitNode.helpers = ts.addRange(destEmitNode.helpers, helpers);
         return destEmitNode;
     }
     function mergeTokenSourceMapRanges(sourceRanges, destRanges) {
@@ -13258,6 +13150,7 @@ var ts;
         }
         return node.emitNode;
     }
+    ts.getOrCreateEmitNode = getOrCreateEmitNode;
     /**
      * Gets flags that control emit behavior of a node.
      *
@@ -13280,6 +13173,16 @@ var ts;
     }
     ts.setEmitFlags = setEmitFlags;
     /**
+     * Gets a custom text range to use when emitting source maps.
+     *
+     * @param node The node.
+     */
+    function getSourceMapRange(node) {
+        var emitNode = node.emitNode;
+        return (emitNode && emitNode.sourceMapRange) || node;
+    }
+    ts.getSourceMapRange = getSourceMapRange;
+    /**
      * Sets a custom text range to use when emitting source maps.
      *
      * @param node The node.
@@ -13291,6 +13194,18 @@ var ts;
     }
     ts.setSourceMapRange = setSourceMapRange;
     /**
+     * Gets the TextRange to use for source maps for a token of a node.
+     *
+     * @param node The node.
+     * @param token The token.
+     */
+    function getTokenSourceMapRange(node, token) {
+        var emitNode = node.emitNode;
+        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
+        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    }
+    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    /**
      * Sets the TextRange to use for source maps for a token of a node.
      *
      * @param node The node.
@@ -13305,14 +13220,6 @@ var ts;
     }
     ts.setTokenSourceMapRange = setTokenSourceMapRange;
     /**
-     * Sets a custom text range to use when emitting comments.
-     */
-    function setCommentRange(node, range) {
-        getOrCreateEmitNode(node).commentRange = range;
-        return node;
-    }
-    ts.setCommentRange = setCommentRange;
-    /**
      * Gets a custom text range to use when emitting comments.
      *
      * @param node The node.
@@ -13323,27 +13230,13 @@ var ts;
     }
     ts.getCommentRange = getCommentRange;
     /**
-     * Gets a custom text range to use when emitting source maps.
-     *
-     * @param node The node.
-     */
-    function getSourceMapRange(node) {
-        var emitNode = node.emitNode;
-        return (emitNode && emitNode.sourceMapRange) || node;
-    }
-    ts.getSourceMapRange = getSourceMapRange;
-    /**
-     * Gets the TextRange to use for source maps for a token of a node.
-     *
-     * @param node The node.
-     * @param token The token.
+     * Sets a custom text range to use when emitting comments.
      */
-    function getTokenSourceMapRange(node, token) {
-        var emitNode = node.emitNode;
-        var tokenSourceMapRanges = emitNode && emitNode.tokenSourceMapRanges;
-        return tokenSourceMapRanges && tokenSourceMapRanges[token];
+    function setCommentRange(node, range) {
+        getOrCreateEmitNode(node).commentRange = range;
+        return node;
     }
-    ts.getTokenSourceMapRange = getTokenSourceMapRange;
+    ts.setCommentRange = setCommentRange;
     /**
      * Gets the constant value to emit for an expression.
      */
@@ -13361,6 +13254,118 @@ var ts;
         return node;
     }
     ts.setConstantValue = setConstantValue;
+    function getExternalHelpersModuleName(node) {
+        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+        var emitNode = parseNode && parseNode.emitNode;
+        return emitNode && emitNode.externalHelpersModuleName;
+    }
+    ts.getExternalHelpersModuleName = getExternalHelpersModuleName;
+    function getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions) {
+        if (compilerOptions.importHelpers && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
+            var externalHelpersModuleName = getExternalHelpersModuleName(node);
+            if (externalHelpersModuleName) {
+                return externalHelpersModuleName;
+            }
+            var helpers = getEmitHelpers(node);
+            if (helpers) {
+                for (var _i = 0, helpers_1 = helpers; _i < helpers_1.length; _i++) {
+                    var helper = helpers_1[_i];
+                    if (!helper.scoped) {
+                        var parseNode = ts.getOriginalNode(node, ts.isSourceFile);
+                        var emitNode = getOrCreateEmitNode(parseNode);
+                        return emitNode.externalHelpersModuleName || (emitNode.externalHelpersModuleName = createUniqueName(ts.externalHelpersModuleNameText));
+                    }
+                }
+            }
+        }
+    }
+    ts.getOrCreateExternalHelpersModuleNameIfNeeded = getOrCreateExternalHelpersModuleNameIfNeeded;
+    /**
+     * Adds an EmitHelper to a node.
+     */
+    function addEmitHelper(node, helper) {
+        var emitNode = getOrCreateEmitNode(node);
+        emitNode.helpers = ts.append(emitNode.helpers, helper);
+        return node;
+    }
+    ts.addEmitHelper = addEmitHelper;
+    /**
+     * Adds an EmitHelper to a node.
+     */
+    function addEmitHelpers(node, helpers) {
+        if (ts.some(helpers)) {
+            var emitNode = getOrCreateEmitNode(node);
+            for (var _i = 0, helpers_2 = helpers; _i < helpers_2.length; _i++) {
+                var helper = helpers_2[_i];
+                if (!ts.contains(emitNode.helpers, helper)) {
+                    emitNode.helpers = ts.append(emitNode.helpers, helper);
+                }
+            }
+        }
+        return node;
+    }
+    ts.addEmitHelpers = addEmitHelpers;
+    /**
+     * Removes an EmitHelper from a node.
+     */
+    function removeEmitHelper(node, helper) {
+        var emitNode = node.emitNode;
+        if (emitNode) {
+            var helpers = emitNode.helpers;
+            if (helpers) {
+                return ts.orderedRemoveItem(helpers, helper);
+            }
+        }
+        return false;
+    }
+    ts.removeEmitHelper = removeEmitHelper;
+    /**
+     * Gets the EmitHelpers of a node.
+     */
+    function getEmitHelpers(node) {
+        var emitNode = node.emitNode;
+        return emitNode && emitNode.helpers;
+    }
+    ts.getEmitHelpers = getEmitHelpers;
+    /**
+     * Moves matching emit helpers from a source node to a target node.
+     */
+    function moveEmitHelpers(source, target, predicate) {
+        var sourceEmitNode = source.emitNode;
+        var sourceEmitHelpers = sourceEmitNode && sourceEmitNode.helpers;
+        if (!ts.some(sourceEmitHelpers))
+            return;
+        var targetEmitNode = getOrCreateEmitNode(target);
+        var helpersRemoved = 0;
+        for (var i = 0; i < sourceEmitHelpers.length; i++) {
+            var helper = sourceEmitHelpers[i];
+            if (predicate(helper)) {
+                helpersRemoved++;
+                if (!ts.contains(targetEmitNode.helpers, helper)) {
+                    targetEmitNode.helpers = ts.append(targetEmitNode.helpers, helper);
+                }
+            }
+            else if (helpersRemoved > 0) {
+                sourceEmitHelpers[i - helpersRemoved] = helper;
+            }
+        }
+        if (helpersRemoved > 0) {
+            sourceEmitHelpers.length -= helpersRemoved;
+        }
+    }
+    ts.moveEmitHelpers = moveEmitHelpers;
+    function compareEmitHelpers(x, y) {
+        if (x === y)
+            return 0 /* EqualTo */;
+        if (x.priority === y.priority)
+            return 0 /* EqualTo */;
+        if (x.priority === undefined)
+            return 1 /* GreaterThan */;
+        if (y.priority === undefined)
+            return -1 /* LessThan */;
+        return ts.compareValues(x.priority, y.priority);
+    }
+    ts.compareEmitHelpers = compareEmitHelpers;
     function setTextRange(node, location) {
         if (location) {
             node.pos = location.pos;
@@ -13390,8 +13395,8 @@ var ts;
     function getLocalNameForExternalImport(node, sourceFile) {
         var namespaceDeclaration = ts.getNamespaceDeclarationNode(node);
         if (namespaceDeclaration && !ts.isDefaultImport(node)) {
-            var name_12 = namespaceDeclaration.name;
-            return ts.isGeneratedIdentifier(name_12) ? name_12 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
+            var name_9 = namespaceDeclaration.name;
+            return ts.isGeneratedIdentifier(name_9) ? name_9 : createIdentifier(ts.getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
         }
         if (node.kind === 235 /* ImportDeclaration */ && node.importClause) {
             return getGeneratedNameForNode(node);
@@ -13454,362 +13459,390 @@ var ts;
         return tryGetModuleNameFromFile(resolver.getExternalModuleFileFromDeclaration(declaration), host, compilerOptions);
     }
     /**
-     * Transforms the body of a function-like node.
-     *
-     * @param node A function-like node.
+     * Gets the initializer of an BindingOrAssignmentElement.
      */
-    function transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis, convertObjectRest) {
-        var multiLine = false; // indicates whether the block *must* be emitted as multiple lines
-        var singleLine = false; // indicates whether the block *may* be emitted as a single line
-        var statementsLocation;
-        var closeBraceLocation;
-        var statements = [];
-        var body = node.body;
-        var statementOffset;
-        context.startLexicalEnvironment();
-        if (ts.isBlock(body)) {
-            // ensureUseStrict is false because no new prologue-directive should be added.
-            // addPrologueDirectives will simply put already-existing directives at the beginning of the target statement-array
-            statementOffset = addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
-        }
-        addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-        addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest);
-        addRestParameterIfNeeded(statements, node, /*inConstructorWithSynthesizedSuper*/ false);
-        // If we added any generated statements, this must be a multi-line block.
-        if (!multiLine && statements.length > 0) {
-            multiLine = true;
-        }
-        if (ts.isBlock(body)) {
-            statementsLocation = body.statements;
-            ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
-            // If the original body was a multi-line block, this must be a multi-line block.
-            if (!multiLine && body.multiLine) {
-                multiLine = true;
-            }
-        }
-        else {
-            ts.Debug.assert(node.kind === 185 /* ArrowFunction */);
-            // To align with the old emitter, we use a synthetic end position on the location
-            // for the statement list we synthesize when we down-level an arrow function with
-            // an expression function body. This prevents both comments and source maps from
-            // being emitted for the end position only.
-            statementsLocation = ts.moveRangeEnd(body, -1);
-            var equalsGreaterThanToken = node.equalsGreaterThanToken;
-            if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
-                if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
-                    singleLine = true;
-                }
-                else {
-                    multiLine = true;
-                }
-            }
-            var expression = ts.visitNode(body, visitor, ts.isExpression);
-            var returnStatement = createReturn(expression, /*location*/ body);
-            setEmitFlags(returnStatement, 12288 /* NoTokenSourceMaps */ | 1024 /* NoTrailingSourceMap */ | 32768 /* NoTrailingComments */);
-            statements.push(returnStatement);
-            // To align with the source map emit for the old emitter, we set a custom
-            // source map location for the close brace.
-            closeBraceLocation = body;
+    function getInitializerOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            // `1` in `let { a = 1 } = ...`
+            // `1` in `let { a: b = 1 } = ...`
+            // `1` in `let { a: {b} = 1 } = ...`
+            // `1` in `let { a: [b] = 1 } = ...`
+            // `1` in `let [a = 1] = ...`
+            // `1` in `let [{a} = 1] = ...`
+            // `1` in `let [[a] = 1] = ...`
+            return bindingElement.initializer;
+        }
+        if (ts.isPropertyAssignment(bindingElement)) {
+            // `1` in `({ a: b = 1 } = ...)`
+            // `1` in `({ a: {b} = 1 } = ...)`
+            // `1` in `({ a: [b] = 1 } = ...)`
+            return ts.isAssignmentExpression(bindingElement.initializer, /*excludeCompoundAssignment*/ true)
+                ? bindingElement.initializer.right
+                : undefined;
         }
-        var lexicalEnvironment = context.endLexicalEnvironment();
-        ts.addRange(statements, lexicalEnvironment);
-        // If we added any final generated statements, this must be a multi-line block
-        if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
-            multiLine = true;
+        if (ts.isShorthandPropertyAssignment(bindingElement)) {
+            // `1` in `({ a = 1 } = ...)`
+            return bindingElement.objectAssignmentInitializer;
         }
-        var block = createBlock(createNodeArray(statements, statementsLocation), node.body, multiLine);
-        if (!multiLine && singleLine) {
-            setEmitFlags(block, 32 /* SingleLine */);
+        if (ts.isAssignmentExpression(bindingElement, /*excludeCompoundAssignment*/ true)) {
+            // `1` in `[a = 1] = ...`
+            // `1` in `[{a} = 1] = ...`
+            // `1` in `[[a] = 1] = ...`
+            return bindingElement.right;
         }
-        if (closeBraceLocation) {
-            setTokenSourceMapRange(block, 17 /* CloseBraceToken */, closeBraceLocation);
+        if (ts.isSpreadExpression(bindingElement)) {
+            // Recovery consistent with existing emit.
+            return getInitializerOfBindingOrAssignmentElement(bindingElement.expression);
         }
-        setOriginalNode(block, node.body);
-        return block;
     }
-    ts.transformFunctionBody = transformFunctionBody;
+    ts.getInitializerOfBindingOrAssignmentElement = getInitializerOfBindingOrAssignmentElement;
     /**
-     * Adds a statement to capture the `this` of a function declaration if it is needed.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A node.
+     * Gets the name of an BindingOrAssignmentElement.
      */
-    function addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis) {
-        if (node.transformFlags & 524288 /* ContainsCapturedLexicalThis */ && node.kind !== 185 /* ArrowFunction */) {
-            captureThisForNode(statements, node, createThis(), enableSubstitutionsForCapturedThis);
-        }
-    }
-    ts.addCaptureThisForNodeIfNeeded = addCaptureThisForNodeIfNeeded;
-    function captureThisForNode(statements, node, initializer, enableSubstitutionsForCapturedThis, originalStatement) {
-        enableSubstitutionsForCapturedThis();
-        var captureThisStatement = createVariableStatement(
-        /*modifiers*/ undefined, createVariableDeclarationList([
-            createVariableDeclaration("_this", 
-            /*type*/ undefined, initializer)
-        ]), originalStatement);
-        setEmitFlags(captureThisStatement, 49152 /* NoComments */ | 8388608 /* CustomPrologue */);
-        setSourceMapRange(captureThisStatement, node);
-        statements.push(captureThisStatement);
-    }
-    ts.captureThisForNode = captureThisForNode;
+    function getTargetOfBindingOrAssignmentElement(bindingElement) {
+        if (ts.isDeclarationBindingElement(bindingElement)) {
+            // `a` in `let { a } = ...`
+            // `a` in `let { a = 1 } = ...`
+            // `b` in `let { a: b } = ...`
+            // `b` in `let { a: b = 1 } = ...`
+            // `a` in `let { ...a } = ...`
+            // `{b}` in `let { a: {b} } = ...`
+            // `{b}` in `let { a: {b} = 1 } = ...`
+            // `[b]` in `let { a: [b] } = ...`
+            // `[b]` in `let { a: [b] = 1 } = ...`
+            // `a` in `let [a] = ...`
+            // `a` in `let [a = 1] = ...`
+            // `a` in `let [...a] = ...`
+            // `{a}` in `let [{a}] = ...`
+            // `{a}` in `let [{a} = 1] = ...`
+            // `[a]` in `let [[a]] = ...`
+            // `[a]` in `let [[a] = 1] = ...`
+            return bindingElement.name;
+        }
+        if (ts.isObjectLiteralElementLike(bindingElement)) {
+            switch (bindingElement.kind) {
+                case 257 /* PropertyAssignment */:
+                    // `b` in `({ a: b } = ...)`
+                    // `b` in `({ a: b = 1 } = ...)`
+                    // `{b}` in `({ a: {b} } = ...)`
+                    // `{b}` in `({ a: {b} = 1 } = ...)`
+                    // `[b]` in `({ a: [b] } = ...)`
+                    // `[b]` in `({ a: [b] = 1 } = ...)`
+                    // `b.c` in `({ a: b.c } = ...)`
+                    // `b.c` in `({ a: b.c = 1 } = ...)`
+                    // `b[0]` in `({ a: b[0] } = ...)`
+                    // `b[0]` in `({ a: b[0] = 1 } = ...)`
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.initializer);
+                case 258 /* ShorthandPropertyAssignment */:
+                    // `a` in `({ a } = ...)`
+                    // `a` in `({ a = 1 } = ...)`
+                    return bindingElement.name;
+                case 259 /* SpreadAssignment */:
+                    // `a` in `({ ...a } = ...)`
+                    return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+            }
+            // no target
+            return undefined;
+        }
+        if (ts.isAssignmentExpression(bindingElement, /*excludeCompoundAssignment*/ true)) {
+            // `a` in `[a = 1] = ...`
+            // `{a}` in `[{a} = 1] = ...`
+            // `[a]` in `[[a] = 1] = ...`
+            // `a.b` in `[a.b = 1] = ...`
+            // `a[0]` in `[a[0] = 1] = ...`
+            return getTargetOfBindingOrAssignmentElement(bindingElement.left);
+        }
+        if (ts.isSpreadExpression(bindingElement)) {
+            // `a` in `[...a] = ...`
+            return getTargetOfBindingOrAssignmentElement(bindingElement.expression);
+        }
+        // `a` in `[a] = ...`
+        // `{a}` in `[{a}] = ...`
+        // `[a]` in `[[a]] = ...`
+        // `a.b` in `[a.b] = ...`
+        // `a[0]` in `[a[0]] = ...`
+        return bindingElement;
+    }
+    ts.getTargetOfBindingOrAssignmentElement = getTargetOfBindingOrAssignmentElement;
     /**
-     * Gets a value indicating whether we need to add default value assignments for a
-     * function-like node.
-     *
-     * @param node A function-like node.
+     * Determines whether an BindingOrAssignmentElement is a rest element.
      */
-    function shouldAddDefaultValueAssignments(node) {
-        return (node.transformFlags & 2097152 /* ContainsDefaultValueAssignments */) !== 0;
+    function getRestIndicatorOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 144 /* Parameter */:
+            case 174 /* BindingElement */:
+                // `...` in `let [...a] = ...`
+                return bindingElement.dotDotDotToken;
+            case 196 /* SpreadElement */:
+            case 259 /* SpreadAssignment */:
+                // `...` in `[...a] = ...`
+                return bindingElement;
+        }
+        return undefined;
     }
+    ts.getRestIndicatorOfBindingOrAssignmentElement = getRestIndicatorOfBindingOrAssignmentElement;
     /**
-     * Adds statements to the body of a function-like node if it contains parameters with
-     * binding patterns or initializers.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A function-like node.
+     * Gets the property name of a BindingOrAssignmentElement
      */
-    function addDefaultValueAssignmentsIfNeeded(statements, node, visitor, convertObjectRest) {
-        if (!shouldAddDefaultValueAssignments(node)) {
-            return;
+    function getPropertyNameOfBindingOrAssignmentElement(bindingElement) {
+        switch (bindingElement.kind) {
+            case 174 /* BindingElement */:
+                // `a` in `let { a: b } = ...`
+                // `[a]` in `let { [a]: b } = ...`
+                // `"a"` in `let { "a": b } = ...`
+                // `1` in `let { 1: b } = ...`
+                if (bindingElement.propertyName) {
+                    var propertyName = bindingElement.propertyName;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 257 /* PropertyAssignment */:
+                // `a` in `({ a: b } = ...)`
+                // `[a]` in `({ [a]: b } = ...)`
+                // `"a"` in `({ "a": b } = ...)`
+                // `1` in `({ 1: b } = ...)`
+                if (bindingElement.name) {
+                    var propertyName = bindingElement.name;
+                    return ts.isComputedPropertyName(propertyName) && ts.isStringOrNumericLiteral(propertyName.expression)
+                        ? propertyName.expression
+                        : propertyName;
+                }
+                break;
+            case 259 /* SpreadAssignment */:
+                // `a` in `({ ...a } = ...)`
+                return bindingElement.name;
         }
-        for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
-            var parameter = _a[_i];
-            var name_13 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
-            // A rest parameter cannot have a binding pattern or an initializer,
-            // so let's just ignore it.
-            if (dotDotDotToken) {
-                continue;
-            }
-            if (ts.isBindingPattern(name_13)) {
-                addDefaultValueAssignmentForBindingPattern(statements, parameter, name_13, initializer, visitor, convertObjectRest);
-            }
-            else if (initializer) {
-                addDefaultValueAssignmentForInitializer(statements, parameter, name_13, initializer, visitor);
-            }
+        var target = getTargetOfBindingOrAssignmentElement(bindingElement);
+        if (target && ts.isPropertyName(target)) {
+            return ts.isComputedPropertyName(target) && ts.isStringOrNumericLiteral(target.expression)
+                ? target.expression
+                : target;
         }
+        ts.Debug.fail("Invalid property name for binding element.");
     }
-    ts.addDefaultValueAssignmentsIfNeeded = addDefaultValueAssignmentsIfNeeded;
+    ts.getPropertyNameOfBindingOrAssignmentElement = getPropertyNameOfBindingOrAssignmentElement;
     /**
-     * Adds statements to the body of a function-like node for parameters with binding patterns
-     *
-     * @param statements The statements for the new function body.
-     * @param parameter The parameter for the function.
-     * @param name The name of the parameter.
-     * @param initializer The initializer for the parameter.
+     * Gets the elements of a BindingOrAssignmentPattern
      */
-    function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer, visitor, convertObjectRest) {
-        var temp = getGeneratedNameForNode(parameter);
-        // In cases where a binding pattern is simply '[]' or '{}',
-        // we usually don't want to emit a var declaration; however, in the presence
-        // of an initializer, we must emit that expression to preserve side effects.
-        if (name.elements.length > 0) {
-            statements.push(setEmitFlags(createVariableStatement(
-            /*modifiers*/ undefined, createVariableDeclarationList(ts.flattenParameterDestructuring(parameter, temp, visitor, convertObjectRest))), 8388608 /* CustomPrologue */));
+    function getElementsOfBindingOrAssignmentPattern(name) {
+        switch (name.kind) {
+            case 172 /* ObjectBindingPattern */:
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                // `a` in `{a}`
+                // `a` in `[a]`
+                return name.elements;
+            case 176 /* ObjectLiteralExpression */:
+                // `a` in `{a}`
+                return name.properties;
         }
-        else if (initializer) {
-            statements.push(setEmitFlags(createStatement(createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 8388608 /* CustomPrologue */));
+    }
+    ts.getElementsOfBindingOrAssignmentPattern = getElementsOfBindingOrAssignmentPattern;
+    function convertToArrayAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpread(element.name, element), element);
+            }
+            var expression = convertToAssignmentElementTarget(element.name);
+            return element.initializer ? setOriginalNode(createAssignment(expression, element.initializer, element), element) : expression;
         }
+        ts.Debug.assertNode(element, ts.isExpression);
+        return element;
     }
-    /**
-     * Adds statements to the body of a function-like node for parameters with initializers.
-     *
-     * @param statements The statements for the new function body.
-     * @param parameter The parameter for the function.
-     * @param name The name of the parameter.
-     * @param initializer The initializer for the parameter.
-     */
-    function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer, visitor) {
-        initializer = ts.visitNode(initializer, visitor, ts.isExpression);
-        var statement = createIf(createStrictEquality(getSynthesizedClone(name), createVoidZero()), setEmitFlags(createBlock([
-            createStatement(createAssignment(setEmitFlags(getMutableClone(name), 1536 /* NoSourceMap */), setEmitFlags(initializer, 1536 /* NoSourceMap */ | getEmitFlags(initializer)), 
-            /*location*/ parameter))
-        ], /*location*/ parameter), 32 /* SingleLine */ | 1024 /* NoTrailingSourceMap */ | 12288 /* NoTokenSourceMaps */), 
-        /*elseStatement*/ undefined, 
-        /*location*/ parameter);
-        statement.startsOnNewLine = true;
-        setEmitFlags(statement, 12288 /* NoTokenSourceMaps */ | 1024 /* NoTrailingSourceMap */ | 8388608 /* CustomPrologue */);
-        statements.push(statement);
+    ts.convertToArrayAssignmentElement = convertToArrayAssignmentElement;
+    function convertToObjectAssignmentElement(element) {
+        if (ts.isBindingElement(element)) {
+            if (element.dotDotDotToken) {
+                ts.Debug.assertNode(element.name, ts.isIdentifier);
+                return setOriginalNode(createSpreadAssignment(element.name, element), element);
+            }
+            if (element.propertyName) {
+                var expression = convertToAssignmentElementTarget(element.name);
+                return setOriginalNode(createPropertyAssignment(element.propertyName, element.initializer ? createAssignment(expression, element.initializer) : expression, element), element);
+            }
+            ts.Debug.assertNode(element.name, ts.isIdentifier);
+            return setOriginalNode(createShorthandPropertyAssignment(element.name, element.initializer, element), element);
+        }
+        ts.Debug.assertNode(element, ts.isObjectLiteralElementLike);
+        return element;
     }
-    /**
-     * Gets a value indicating whether we need to add statements to handle a rest parameter.
-     *
-     * @param node A ParameterDeclaration node.
-     * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
-     *                                          part of a constructor declaration with a
-     *                                          synthesized call to `super`
-     */
-    function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
-        return node && node.dotDotDotToken && node.name.kind === 70 /* Identifier */ && !inConstructorWithSynthesizedSuper;
+    ts.convertToObjectAssignmentElement = convertToObjectAssignmentElement;
+    function convertToAssignmentPattern(node) {
+        switch (node.kind) {
+            case 173 /* ArrayBindingPattern */:
+            case 175 /* ArrayLiteralExpression */:
+                return convertToArrayAssignmentPattern(node);
+            case 172 /* ObjectBindingPattern */:
+            case 176 /* ObjectLiteralExpression */:
+                return convertToObjectAssignmentPattern(node);
+        }
     }
-    /**
-     * Adds statements to the body of a function-like node if it contains a rest parameter.
-     *
-     * @param statements The statements for the new function body.
-     * @param node A function-like node.
-     * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
-     *                                          part of a constructor declaration with a
-     *                                          synthesized call to `super`
-     */
-    function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
-        var parameter = ts.lastOrUndefined(node.parameters);
-        if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
-            return;
+    ts.convertToAssignmentPattern = convertToAssignmentPattern;
+    function convertToObjectAssignmentPattern(node) {
+        if (ts.isObjectBindingPattern(node)) {
+            return setOriginalNode(createObjectLiteral(ts.map(node.elements, convertToObjectAssignmentElement), node), node);
         }
-        // `declarationName` is the name of the local declaration for the parameter.
-        var declarationName = getMutableClone(parameter.name);
-        setEmitFlags(declarationName, 1536 /* NoSourceMap */);
-        // `expressionName` is the name of the parameter used in expressions.
-        var expressionName = getSynthesizedClone(parameter.name);
-        var restIndex = node.parameters.length - 1;
-        var temp = createLoopVariable();
-        // var param = [];
-        statements.push(setEmitFlags(createVariableStatement(
-        /*modifiers*/ undefined, createVariableDeclarationList([
-            createVariableDeclaration(declarationName, 
-            /*type*/ undefined, createArrayLiteral([]))
-        ]), 
-        /*location*/ parameter), 8388608 /* CustomPrologue */));
-        // for (var _i = restIndex; _i < arguments.length; _i++) {
-        //   param[_i - restIndex] = arguments[_i];
-        // }
-        var forStatement = createFor(createVariableDeclarationList([
-            createVariableDeclaration(temp, /*type*/ undefined, createLiteral(restIndex))
-        ], /*location*/ parameter), createLessThan(temp, createPropertyAccess(createIdentifier("arguments"), "length"), 
-        /*location*/ parameter), createPostfixIncrement(temp, /*location*/ parameter), createBlock([
-            startOnNewLine(createStatement(createAssignment(createElementAccess(expressionName, createSubtract(temp, createLiteral(restIndex))), createElementAccess(createIdentifier("arguments"), temp)), 
-            /*location*/ parameter))
-        ]));
-        setEmitFlags(forStatement, 8388608 /* CustomPrologue */);
-        startOnNewLine(forStatement);
-        statements.push(forStatement);
-    }
-    ts.addRestParameterIfNeeded = addRestParameterIfNeeded;
-    function convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, convertObjectRest) {
-        // The following ES6 code:
-        //
-        //    for (let v of expr) { }
-        //
-        // should be emitted as
-        //
-        //    for (var _i = 0, _a = expr; _i < _a.length; _i++) {
-        //        var v = _a[_i];
-        //    }
-        //
-        // where _a and _i are temps emitted to capture the RHS and the counter,
-        // respectively.
-        // When the left hand side is an expression instead of a let declaration,
-        // the "let v" is not emitted.
-        // When the left hand side is a let/const, the v is renamed if there is
-        // another v in scope.
-        // Note that all assignments to the LHS are emitted in the body, including
-        // all destructuring.
-        // Note also that because an extra statement is needed to assign to the LHS,
-        // for-of bodies are always emitted as blocks.
-        var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
-        var initializer = node.initializer;
-        var statements = [];
-        // In the case where the user wrote an identifier as the RHS, like this:
-        //
-        //     for (let v of arr) { }
-        //
-        // we don't want to emit a temporary variable for the RHS, just use it directly.
-        var counter = convertObjectRest ? undefined : createLoopVariable();
-        var rhsReference = expression.kind === 70 /* Identifier */
-            ? createUniqueName(expression.text)
-            : createTempVariable(/*recordTempVariable*/ undefined);
-        var elementAccess = convertObjectRest ? rhsReference : createElementAccess(rhsReference, counter);
-        // Initialize LHS
-        // var v = _a[_i];
-        if (ts.isVariableDeclarationList(initializer)) {
-            if (initializer.flags & 3 /* BlockScoped */) {
-                enableSubstitutionsForBlockScopedBindings();
-            }
-            var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
-            if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
-                // This works whether the declaration is a var, let, or const.
-                // It will use rhsIterationValue _a[_i] as the initializer.
-                var declarations = ts.flattenVariableDestructuring(firstOriginalDeclaration, elementAccess, visitor, 
-                /*recordTempVariable*/ undefined, convertObjectRest);
-                var declarationList = createVariableDeclarationList(declarations, /*location*/ initializer);
-                setOriginalNode(declarationList, initializer);
-                // Adjust the source map range for the first declaration to align with the old
-                // emitter.
-                var firstDeclaration = declarations[0];
-                var lastDeclaration = ts.lastOrUndefined(declarations);
-                setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
-                statements.push(createVariableStatement(
-                /*modifiers*/ undefined, declarationList));
-            }
-            else {
-                // The following call does not include the initializer, so we have
-                // to emit it separately.
-                statements.push(createVariableStatement(
-                /*modifiers*/ undefined, setOriginalNode(createVariableDeclarationList([
-                    createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : createTempVariable(/*recordTempVariable*/ undefined), 
-                    /*type*/ undefined, createElementAccess(rhsReference, counter))
-                ], /*location*/ ts.moveRangePos(initializer, -1)), initializer), 
-                /*location*/ ts.moveRangeEnd(initializer, -1)));
-            }
+        ts.Debug.assertNode(node, ts.isObjectLiteralExpression);
+        return node;
+    }
+    ts.convertToObjectAssignmentPattern = convertToObjectAssignmentPattern;
+    function convertToArrayAssignmentPattern(node) {
+        if (ts.isArrayBindingPattern(node)) {
+            return setOriginalNode(createArrayLiteral(ts.map(node.elements, convertToArrayAssignmentElement), node), node);
         }
-        else {
-            // Initializer is an expression. Emit the expression in the body, so that it's
-            // evaluated on every iteration.
-            var assignment = createAssignment(initializer, elementAccess);
-            if (ts.isDestructuringAssignment(assignment)) {
-                // This is a destructuring pattern, so we flatten the destructuring instead.
-                statements.push(createStatement(ts.flattenDestructuringAssignment(context, assignment, 
-                /*needsValue*/ false, context.hoistVariableDeclaration, visitor, convertObjectRest)));
-            }
-            else {
-                // Currently there is not way to check that assignment is binary expression of destructing assignment
-                // so we have to cast never type to binaryExpression
-                assignment.end = initializer.end;
-                statements.push(createStatement(assignment, /*location*/ ts.moveRangeEnd(initializer, -1)));
-            }
+        ts.Debug.assertNode(node, ts.isArrayLiteralExpression);
+        return node;
+    }
+    ts.convertToArrayAssignmentPattern = convertToArrayAssignmentPattern;
+    function convertToAssignmentElementTarget(node) {
+        if (ts.isBindingPattern(node)) {
+            return convertToAssignmentPattern(node);
         }
-        var bodyLocation;
-        var statementsLocation;
-        if (convertedLoopBodyStatements) {
-            ts.addRange(statements, convertedLoopBodyStatements);
+        ts.Debug.assertNode(node, ts.isExpression);
+        return node;
+    }
+    ts.convertToAssignmentElementTarget = convertToAssignmentElementTarget;
+    function collectExternalModuleInfo(sourceFile, resolver, compilerOptions) {
+        var externalImports = [];
+        var exportSpecifiers = ts.createMap();
+        var exportedBindings = ts.createMap();
+        var uniqueExports = ts.createMap();
+        var exportedNames;
+        var hasExportDefault = false;
+        var exportEquals = undefined;
+        var hasExportStarsToExportValues = false;
+        var externalHelpersModuleName = getOrCreateExternalHelpersModuleNameIfNeeded(sourceFile, compilerOptions);
+        var externalHelpersImportDeclaration = externalHelpersModuleName && createImportDeclaration(
+        /*decorators*/ undefined, 
+        /*modifiers*/ undefined, createImportClause(/*name*/ undefined, createNamespaceImport(externalHelpersModuleName)), createLiteral(ts.externalHelpersModuleNameText));
+        if (externalHelpersImportDeclaration) {
+            externalImports.push(externalHelpersImportDeclaration);
         }
-        else {
-            var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
-            if (ts.isBlock(statement)) {
-                ts.addRange(statements, statement.statements);
-                bodyLocation = statement;
-                statementsLocation = statement.statements;
-            }
-            else {
-                statements.push(statement);
+        for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+            var node = _a[_i];
+            switch (node.kind) {
+                case 235 /* ImportDeclaration */:
+                    // import "mod"
+                    // import x from "mod"
+                    // import * as x from "mod"
+                    // import { x, y } from "mod"
+                    externalImports.push(node);
+                    break;
+                case 234 /* ImportEqualsDeclaration */:
+                    if (node.moduleReference.kind === 245 /* ExternalModuleReference */) {
+                        // import x = require("mod")
+                        externalImports.push(node);
+                    }
+                    break;
+                case 241 /* ExportDeclaration */:
+                    if (node.moduleSpecifier) {
+                        if (!node.exportClause) {
+                            // export * from "mod"
+                            externalImports.push(node);
+                            hasExportStarsToExportValues = true;
+                        }
+                        else {
+                            // export { x, y } from "mod"
+                            externalImports.push(node);
+                        }
+                    }
+                    else {
+                        // export { x, y }
+                        for (var _b = 0, _c = node.exportClause.elements; _b < _c.length; _b++) {
+                            var specifier = _c[_b];
+                            if (!uniqueExports[specifier.name.text]) {
+                                var name_10 = specifier.propertyName || specifier.name;
+                                ts.multiMapAdd(exportSpecifiers, name_10.text, specifier);
+                                var decl = resolver.getReferencedImportDeclaration(name_10)
+                                    || resolver.getReferencedValueDeclaration(name_10);
+                                if (decl) {
+                                    ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(decl), specifier.name);
+                                }
+                                uniqueExports[specifier.name.text] = true;
+                                exportedNames = ts.append(exportedNames, specifier.name);
+                            }
+                        }
+                    }
+                    break;
+                case 240 /* ExportAssignment */:
+                    if (node.isExportEquals && !exportEquals) {
+                        // export = x
+                        exportEquals = node;
+                    }
+                    break;
+                case 205 /* VariableStatement */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        for (var _d = 0, _e = node.declarationList.declarations; _d < _e.length; _d++) {
+                            var decl = _e[_d];
+                            exportedNames = collectExportedVariableInfo(decl, uniqueExports, exportedNames);
+                        }
+                    }
+                    break;
+                case 225 /* FunctionDeclaration */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        if (ts.hasModifier(node, 512 /* Default */)) {
+                            // export default function() { }
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            // export function x() { }
+                            var name_11 = node.name;
+                            if (!uniqueExports[name_11.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_11);
+                                uniqueExports[name_11.text] = true;
+                                exportedNames = ts.append(exportedNames, name_11);
+                            }
+                        }
+                    }
+                    break;
+                case 226 /* ClassDeclaration */:
+                    if (ts.hasModifier(node, 1 /* Export */)) {
+                        if (ts.hasModifier(node, 512 /* Default */)) {
+                            // export default class { }
+                            if (!hasExportDefault) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), getDeclarationName(node));
+                                hasExportDefault = true;
+                            }
+                        }
+                        else {
+                            // export class x { }
+                            var name_12 = node.name;
+                            if (!uniqueExports[name_12.text]) {
+                                ts.multiMapAdd(exportedBindings, ts.getOriginalNodeId(node), name_12);
+                                uniqueExports[name_12.text] = true;
+                                exportedNames = ts.append(exportedNames, name_12);
+                            }
+                        }
+                    }
+                    break;
             }
         }
-        // The old emitter does not emit source maps for the expression
-        setEmitFlags(expression, 1536 /* NoSourceMap */ | getEmitFlags(expression));
-        // The old emitter does not emit source maps for the block.
-        // We add the location to preserve comments.
-        var body = createBlock(createNodeArray(statements, /*location*/ statementsLocation), 
-        /*location*/ bodyLocation);
-        setEmitFlags(body, 1536 /* NoSourceMap */ | 12288 /* NoTokenSourceMaps */);
-        var forStatement;
-        if (convertObjectRest) {
-            forStatement = createForOf(createVariableDeclarationList([
-                createVariableDeclaration(rhsReference, /*type*/ undefined, /*initializer*/ undefined, /*location*/ node.expression)
-            ], /*location*/ node.expression), node.expression, body, 
-            /*location*/ node);
+        return { externalImports: externalImports, exportSpecifiers: exportSpecifiers, exportEquals: exportEquals, hasExportStarsToExportValues: hasExportStarsToExportValues, exportedBindings: exportedBindings, exportedNames: exportedNames, externalHelpersImportDeclaration: externalHelpersImportDeclaration };
+    }
+    ts.collectExternalModuleInfo = collectExternalModuleInfo;
+    function collectExportedVariableInfo(decl, uniqueExports, exportedNames) {
+        if (ts.isBindingPattern(decl.name)) {
+            for (var _i = 0, _a = decl.name.elements; _i < _a.length; _i++) {
+                var element = _a[_i];
+                if (!ts.isOmittedExpression(element)) {
+                    exportedNames = collectExportedVariableInfo(element, uniqueExports, exportedNames);
+                }
+            }
         }
-        else {
-            forStatement = createFor(setEmitFlags(createVariableDeclarationList([
-                createVariableDeclaration(counter, /*type*/ undefined, createLiteral(0), /*location*/ ts.moveRangePos(node.expression, -1)),
-                createVariableDeclaration(rhsReference, /*type*/ undefined, expression, /*location*/ node.expression)
-            ], /*location*/ node.expression), 16777216 /* NoHoisting */), createLessThan(counter, createPropertyAccess(rhsReference, "length"), 
-            /*location*/ node.expression), createPostfixIncrement(counter, /*location*/ node.expression), body, 
-            /*location*/ node);
+        else if (!ts.isGeneratedIdentifier(decl.name)) {
+            if (!uniqueExports[decl.name.text]) {
+                uniqueExports[decl.name.text] = true;
+                exportedNames = ts.append(exportedNames, decl.name);
+            }
         }
-        // Disable trailing source maps for the OpenParenToken to align source map emit with the old emitter.
-        setEmitFlags(forStatement, 8192 /* NoTokenTrailingSourceMaps */);
-        return forStatement;
+        return exportedNames;
     }
-    ts.convertForOf = convertForOf;
 })(ts || (ts = {}));
 /// <reference path="utilities.ts"/>
 /// <reference path="scanner.ts"/>
@@ -14217,29 +14250,31 @@ var ts;
                     visitNode(cbNode, node.type);
             case 278 /* JSDocComment */:
                 return visitNodes(cbNodes, node.tags);
-            case 280 /* JSDocParameterTag */:
+            case 281 /* JSDocParameterTag */:
                 return visitNode(cbNode, node.preParameterName) ||
                     visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.postParameterName);
-            case 281 /* JSDocReturnTag */:
+            case 282 /* JSDocReturnTag */:
                 return visitNode(cbNode, node.typeExpression);
-            case 282 /* JSDocTypeTag */:
+            case 283 /* JSDocTypeTag */:
                 return visitNode(cbNode, node.typeExpression);
-            case 283 /* JSDocTemplateTag */:
+            case 280 /* JSDocAugmentsTag */:
+                return visitNode(cbNode, node.typeExpression);
+            case 284 /* JSDocTemplateTag */:
                 return visitNodes(cbNodes, node.typeParameters);
-            case 284 /* JSDocTypedefTag */:
+            case 285 /* JSDocTypedefTag */:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.fullName) ||
                     visitNode(cbNode, node.name) ||
                     visitNode(cbNode, node.jsDocTypeLiteral);
-            case 286 /* JSDocTypeLiteral */:
+            case 287 /* JSDocTypeLiteral */:
                 return visitNodes(cbNodes, node.jsDocPropertyTags);
-            case 285 /* JSDocPropertyTag */:
+            case 286 /* JSDocPropertyTag */:
                 return visitNode(cbNode, node.typeExpression) ||
                     visitNode(cbNode, node.name);
-            case 293 /* PartiallyEmittedExpression */:
+            case 294 /* PartiallyEmittedExpression */:
                 return visitNode(cbNode, node.expression);
-            case 287 /* JSDocLiteralType */:
+            case 288 /* JSDocLiteralType */:
                 return visitNode(cbNode, node.literal);
         }
     }
@@ -14462,7 +14497,7 @@ var ts;
             return sourceFile;
         }
         function addJSDocComment(node) {
-            var comments = ts.getJsDocCommentsFromText(node, sourceFile.text);
+            var comments = ts.getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (var _i = 0, comments_2 = comments; _i < comments_2.length; _i++) {
                     var comment = comments_2[_i];
@@ -14470,10 +14505,10 @@ var ts;
                     if (!jsDoc) {
                         continue;
                     }
-                    if (!node.jsDocComments) {
-                        node.jsDocComments = [];
+                    if (!node.jsDoc) {
+                        node.jsDoc = [];
                     }
-                    node.jsDocComments.push(jsDoc);
+                    node.jsDoc.push(jsDoc);
                 }
             }
             return node;
@@ -14495,12 +14530,12 @@ var ts;
                     var saveParent = parent;
                     parent = n;
                     forEachChild(n, visitNode);
-                    if (n.jsDocComments) {
-                        for (var _i = 0, _a = n.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            jsDocComment.parent = n;
-                            parent = jsDocComment;
-                            forEachChild(jsDocComment, visitNode);
+                    if (n.jsDoc) {
+                        for (var _i = 0, _a = n.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            jsDoc.parent = n;
+                            parent = jsDoc;
+                            forEachChild(jsDoc, visitNode);
                         }
                     }
                     parent = saveParent;
@@ -18524,8 +18559,8 @@ var ts;
             }
             if (decorators || modifiers) {
                 // treat this as a property declaration with a missing name.
-                var name_14 = createMissingNode(70 /* Identifier */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
-                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_14, /*questionToken*/ undefined);
+                var name_13 = createMissingNode(70 /* Identifier */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
+                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_13, /*questionToken*/ undefined);
             }
             // 'isClassMemberStart' should have hinted not to attempt parsing.
             ts.Debug.fail("Should not have attempted to parse class member declaration.");
@@ -19276,7 +19311,7 @@ var ts;
                 return finishNode(result);
             }
             function parseJSDocLiteralType() {
-                var result = createNode(287 /* JSDocLiteralType */);
+                var result = createNode(288 /* JSDocLiteralType */);
                 result.literal = parseLiteralTypeNode();
                 return finishNode(result);
             }
@@ -19486,6 +19521,9 @@ var ts;
                     var tag;
                     if (tagName) {
                         switch (tagName.text) {
+                            case "augments":
+                                tag = parseAugmentsTag(atToken, tagName);
+                                break;
                             case "param":
                                 tag = parseParamTag(atToken, tagName);
                                 break;
@@ -19633,7 +19671,7 @@ var ts;
                     if (!typeExpression) {
                         typeExpression = tryParseTypeExpression();
                     }
-                    var result = createNode(280 /* JSDocParameterTag */, atToken.pos);
+                    var result = createNode(281 /* JSDocParameterTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.preParameterName = preName;
@@ -19644,20 +19682,20 @@ var ts;
                     return finishNode(result);
                 }
                 function parseReturnTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 281 /* JSDocReturnTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 282 /* JSDocReturnTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(281 /* JSDocReturnTag */, atToken.pos);
+                    var result = createNode(282 /* JSDocReturnTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
                     return finishNode(result);
                 }
                 function parseTypeTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 282 /* JSDocTypeTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 283 /* JSDocTypeTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
-                    var result = createNode(282 /* JSDocTypeTag */, atToken.pos);
+                    var result = createNode(283 /* JSDocTypeTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeExpression = tryParseTypeExpression();
@@ -19672,17 +19710,25 @@ var ts;
                         parseErrorAtPosition(scanner.getStartPos(), /*length*/ 0, ts.Diagnostics.Identifier_expected);
                         return undefined;
                     }
-                    var result = createNode(285 /* JSDocPropertyTag */, atToken.pos);
+                    var result = createNode(286 /* JSDocPropertyTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.name = name;
                     result.typeExpression = typeExpression;
                     return finishNode(result);
                 }
+                function parseAugmentsTag(atToken, tagName) {
+                    var typeExpression = tryParseTypeExpression();
+                    var result = createNode(280 /* JSDocAugmentsTag */, atToken.pos);
+                    result.atToken = atToken;
+                    result.tagName = tagName;
+                    result.typeExpression = typeExpression;
+                    return finishNode(result);
+                }
                 function parseTypedefTag(atToken, tagName) {
                     var typeExpression = tryParseTypeExpression();
                     skipWhitespace();
-                    var typedefTag = createNode(284 /* JSDocTypedefTag */, atToken.pos);
+                    var typedefTag = createNode(285 /* JSDocTypedefTag */, atToken.pos);
                     typedefTag.atToken = atToken;
                     typedefTag.tagName = tagName;
                     typedefTag.fullName = parseJSDocTypeNameWithNamespace(/*flags*/ 0);
@@ -19699,8 +19745,8 @@ var ts;
                         if (typeExpression.type.kind === 272 /* JSDocTypeReference */) {
                             var jsDocTypeReference = typeExpression.type;
                             if (jsDocTypeReference.name.kind === 70 /* Identifier */) {
-                                var name_15 = jsDocTypeReference.name;
-                                if (name_15.text === "Object") {
+                                var name_14 = jsDocTypeReference.name;
+                                if (name_14.text === "Object") {
                                     typedefTag.jsDocTypeLiteral = scanChildTags();
                                 }
                             }
@@ -19714,7 +19760,7 @@ var ts;
                     }
                     return finishNode(typedefTag);
                     function scanChildTags() {
-                        var jsDocTypeLiteral = createNode(286 /* JSDocTypeLiteral */, scanner.getStartPos());
+                        var jsDocTypeLiteral = createNode(287 /* JSDocTypeLiteral */, scanner.getStartPos());
                         var resumePos = scanner.getStartPos();
                         var canParseTag = true;
                         var seenAsterisk = false;
@@ -19801,20 +19847,20 @@ var ts;
                     return false;
                 }
                 function parseTemplateTag(atToken, tagName) {
-                    if (ts.forEach(tags, function (t) { return t.kind === 283 /* JSDocTemplateTag */; })) {
+                    if (ts.forEach(tags, function (t) { return t.kind === 284 /* JSDocTemplateTag */; })) {
                         parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                     }
                     // Type parameter list looks like '@template T,U,V'
                     var typeParameters = createNodeArray();
                     while (true) {
-                        var name_16 = parseJSDocIdentifierName();
+                        var name_15 = parseJSDocIdentifierName();
                         skipWhitespace();
-                        if (!name_16) {
+                        if (!name_15) {
                             parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                             return undefined;
                         }
-                        var typeParameter = createNode(143 /* TypeParameter */, name_16.pos);
-                        typeParameter.name = name_16;
+                        var typeParameter = createNode(143 /* TypeParameter */, name_15.pos);
+                        typeParameter.name = name_15;
                         finishNode(typeParameter);
                         typeParameters.push(typeParameter);
                         if (token() === 25 /* CommaToken */) {
@@ -19825,7 +19871,7 @@ var ts;
                             break;
                         }
                     }
-                    var result = createNode(283 /* JSDocTemplateTag */, atToken.pos);
+                    var result = createNode(284 /* JSDocTemplateTag */, atToken.pos);
                     result.atToken = atToken;
                     result.tagName = tagName;
                     result.typeParameters = typeParameters;
@@ -19952,8 +19998,8 @@ var ts;
                     ts.Debug.assert(text === newText.substring(node.pos, node.end));
                 }
                 forEachChild(node, visitNode, visitArray);
-                if (node.jsDocComments) {
-                    for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
+                if (node.jsDoc) {
+                    for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         forEachChild(jsDocComment, visitNode, visitArray);
                     }
@@ -20530,7 +20576,7 @@ var ts;
                 if (node.name.kind === 142 /* ComputedPropertyName */) {
                     var nameExpression = node.name.expression;
                     // treat computed property names where expression is string/numeric literal as just string/numeric literal
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
@@ -20580,7 +20626,7 @@ var ts;
                     var functionType = node.parent;
                     var index = ts.indexOf(functionType.parameters, node);
                     return "arg" + index;
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     var parentNode = node.parent && node.parent.parent;
                     var nameFromParentNode = void 0;
                     if (parentNode && parentNode.kind === 205 /* VariableStatement */) {
@@ -20713,7 +20759,7 @@ var ts;
                 //       during global merging in the checker. Why? The only case when ambient module is permitted inside another module is module augmentation
                 //       and this case is specially handled. Module augmentations should only be merged with original module definition
                 //       and should never be merged directly with other augmentation, and the latter case would be possible if automatic merge is allowed.
-                var isJSDocTypedefInJSDocNamespace = node.kind === 284 /* JSDocTypedefTag */ &&
+                var isJSDocTypedefInJSDocNamespace = node.kind === 285 /* JSDocTypedefTag */ &&
                     node.name &&
                     node.name.kind === 70 /* Identifier */ &&
                     node.name.isInJSDocNamespace;
@@ -20845,15 +20891,38 @@ var ts;
                 subtreeTransformFlags = savedSubtreeTransformFlags | computeTransformFlagsForNode(node, subtreeTransformFlags);
             }
         }
+        function bindEach(nodes) {
+            if (nodes === undefined) {
+                return;
+            }
+            if (skipTransformFlagAggregation) {
+                ts.forEach(nodes, bind);
+            }
+            else {
+                var savedSubtreeTransformFlags = subtreeTransformFlags;
+                subtreeTransformFlags = 0 /* None */;
+                var nodeArrayFlags = 0 /* None */;
+                for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
+                    var node = nodes_2[_i];
+                    bind(node);
+                    nodeArrayFlags |= node.transformFlags & ~536870912 /* HasComputedFlags */;
+                }
+                nodes.transformFlags = nodeArrayFlags | 536870912 /* HasComputedFlags */;
+                subtreeTransformFlags |= savedSubtreeTransformFlags;
+            }
+        }
+        function bindEachChild(node) {
+            ts.forEachChild(node, bind, bindEach);
+        }
         function bindChildrenWorker(node) {
             // Binding of JsDocComment should be done before the current block scope container changes.
             // because the scope of JsDocComment should not be affected by whether the current node is a
             // container or not.
-            if (ts.isInJavaScriptFile(node) && node.jsDocComments) {
-                ts.forEach(node.jsDocComments, bind);
+            if (ts.isInJavaScriptFile(node) && node.jsDoc) {
+                ts.forEach(node.jsDoc, bind);
             }
             if (checkUnreachable(node)) {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 return;
             }
             switch (node.kind) {
@@ -20918,7 +20987,7 @@ var ts;
                     bindCallExpressionFlow(node);
                     break;
                 default:
-                    ts.forEachChild(node, bind);
+                    bindEachChild(node);
                     break;
             }
         }
@@ -21224,7 +21293,7 @@ var ts;
             }
             return undefined;
         }
-        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
+        function bindBreakOrContinueFlow(node, breakTarget, continueTarget) {
             var flowLabel = node.kind === 215 /* BreakStatement */ ? breakTarget : continueTarget;
             if (flowLabel) {
                 addAntecedent(flowLabel, currentFlow);
@@ -21237,11 +21306,11 @@ var ts;
                 var activeLabel = findActiveLabel(node.label.text);
                 if (activeLabel) {
                     activeLabel.referenced = true;
-                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
+                    bindBreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                 }
             }
             else {
-                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
+                bindBreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
             }
         }
         function bindTryStatement(node) {
@@ -21303,6 +21372,8 @@ var ts;
             currentFlow = finishFlowLabel(postSwitchLabel);
         }
         function bindCaseBlock(node) {
+            var savedSubtreeTransformFlags = subtreeTransformFlags;
+            subtreeTransformFlags = 0;
             var clauses = node.clauses;
             var fallthroughFlow = unreachableFlow;
             for (var i = 0; i < clauses.length; i++) {
@@ -21322,13 +21393,15 @@ var ts;
                     errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                 }
             }
+            clauses.transformFlags = subtreeTransformFlags | 536870912 /* HasComputedFlags */;
+            subtreeTransformFlags |= savedSubtreeTransformFlags;
         }
         function bindCaseClause(node) {
             var saveCurrentFlow = currentFlow;
             currentFlow = preSwitchCaseFlow;
             bind(node.expression);
             currentFlow = saveCurrentFlow;
-            ts.forEach(node.statements, bind);
+            bindEach(node.statements);
         }
         function pushActiveLabel(name, breakTarget, continueTarget) {
             var activeLabel = {
@@ -21415,19 +21488,19 @@ var ts;
                 var saveTrueTarget = currentTrueTarget;
                 currentTrueTarget = currentFalseTarget;
                 currentFalseTarget = saveTrueTarget;
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 currentFalseTarget = currentTrueTarget;
                 currentTrueTarget = saveTrueTarget;
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (node.operator === 42 /* PlusPlusToken */ || node.operator === 43 /* MinusMinusToken */) {
                     bindAssignmentTargetFlow(node.operand);
                 }
             }
         }
         function bindPostfixUnaryExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.operator === 42 /* PlusPlusToken */ || node.operator === 43 /* MinusMinusToken */) {
                 bindAssignmentTargetFlow(node.operand);
             }
@@ -21445,7 +21518,7 @@ var ts;
                 }
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
                 if (ts.isAssignmentOperator(operator) && !ts.isAssignmentTarget(node)) {
                     bindAssignmentTargetFlow(node.left);
                     if (operator === 57 /* EqualsToken */ && node.left.kind === 178 /* ElementAccessExpression */) {
@@ -21458,7 +21531,7 @@ var ts;
             }
         }
         function bindDeleteExpressionFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.expression.kind === 177 /* PropertyAccessExpression */) {
                 bindAssignmentTargetFlow(node.expression);
             }
@@ -21491,7 +21564,7 @@ var ts;
             }
         }
         function bindVariableDeclarationFlow(node) {
-            ts.forEachChild(node, bind);
+            bindEachChild(node);
             if (node.initializer || node.parent.parent.kind === 212 /* ForInStatement */ || node.parent.parent.kind === 213 /* ForOfStatement */) {
                 bindInitializedVariableFlow(node);
             }
@@ -21505,12 +21578,12 @@ var ts;
                 expr = expr.expression;
             }
             if (expr.kind === 184 /* FunctionExpression */ || expr.kind === 185 /* ArrowFunction */) {
-                ts.forEach(node.typeArguments, bind);
-                ts.forEach(node.arguments, bind);
+                bindEach(node.typeArguments);
+                bindEach(node.arguments);
                 bind(node.expression);
             }
             else {
-                ts.forEachChild(node, bind);
+                bindEachChild(node);
             }
             if (node.expression.kind === 177 /* PropertyAccessExpression */) {
                 var propertyAccess = node.expression;
@@ -21526,7 +21599,7 @@ var ts;
                 case 229 /* EnumDeclaration */:
                 case 176 /* ObjectLiteralExpression */:
                 case 161 /* TypeLiteral */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 270 /* JSDocRecordType */:
                     return 1 /* IsContainer */;
                 case 227 /* InterfaceDeclaration */:
@@ -21616,7 +21689,7 @@ var ts;
                 case 176 /* ObjectLiteralExpression */:
                 case 227 /* InterfaceDeclaration */:
                 case 270 /* JSDocRecordType */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                     // Interface/Object-types always have their children added to the 'members' of
                     // their container. They are only accessible through an instance of their
                     // container, and are never in scope otherwise (even inside the body of the
@@ -21990,8 +22063,8 @@ var ts;
         }
         function updateStrictModeStatementList(statements) {
             if (!inStrictMode) {
-                for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
-                    var statement = statements_1[_i];
+                for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
+                    var statement = statements_2[_i];
                     if (!ts.isPrologueDirective(statement)) {
                         return;
                     }
@@ -22018,7 +22091,7 @@ var ts;
                     // current "blockScopeContainer" needs to be set to its immediate namespace parent.
                     if (node.isInJSDocNamespace) {
                         var parentNode = node.parent;
-                        while (parentNode && parentNode.kind !== 284 /* JSDocTypedefTag */) {
+                        while (parentNode && parentNode.kind !== 285 /* JSDocTypedefTag */) {
                             parentNode = parentNode.parent;
                         }
                         bindBlockScopedDeclaration(parentNode, 524288 /* TypeAlias */, 793064 /* TypeAliasExcludes */);
@@ -22089,7 +22162,7 @@ var ts;
                 case 146 /* PropertySignature */:
                 case 271 /* JSDocRecordMember */:
                     return bindPropertyOrMethodOrAccessor(node, 4 /* Property */ | (node.questionToken ? 536870912 /* Optional */ : 0 /* None */), 0 /* PropertyExcludes */);
-                case 285 /* JSDocPropertyTag */:
+                case 286 /* JSDocPropertyTag */:
                     return bindJSDocProperty(node);
                 case 257 /* PropertyAssignment */:
                 case 258 /* ShorthandPropertyAssignment */:
@@ -22137,7 +22210,7 @@ var ts;
                     return bindFunctionOrConstructorType(node);
                 case 161 /* TypeLiteral */:
                 case 170 /* MappedType */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 270 /* JSDocRecordType */:
                     return bindAnonymousDeclaration(node, 2048 /* TypeLiteral */, "__type");
                 case 176 /* ObjectLiteralExpression */:
@@ -22158,7 +22231,7 @@ var ts;
                     return bindClassLikeDeclaration(node);
                 case 227 /* InterfaceDeclaration */:
                     return bindBlockScopedDeclaration(node, 64 /* Interface */, 792968 /* InterfaceExcludes */);
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     if (!node.fullName || node.fullName.kind === 70 /* Identifier */) {
                         return bindBlockScopedDeclaration(node, 524288 /* TypeAlias */, 793064 /* TypeAliasExcludes */);
                     }
@@ -22238,12 +22311,12 @@ var ts;
                 return;
             }
             else {
-                var parent_5 = node.parent;
-                if (!ts.isExternalModule(parent_5)) {
+                var parent_4 = node.parent;
+                if (!ts.isExternalModule(parent_4)) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                     return;
                 }
-                if (!parent_5.isDeclarationFile) {
+                if (!parent_4.isDeclarationFile) {
                     file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                     return;
                 }
@@ -22591,14 +22664,14 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */
+        if (subtreeFlags & 524288 /* ContainsSpread */
             || isSuperOrSuperProperty(expression, expressionKind)) {
             // If the this node contains a SpreadExpression, or is a super call, then it is an ES6
             // node.
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+        return transformFlags & ~537396545 /* ArrayLiteralOrCallOrNewExcludes */;
     }
     function isSuperOrSuperProperty(node, kind) {
         switch (kind) {
@@ -22617,13 +22690,13 @@ var ts;
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+        if (subtreeFlags & 524288 /* ContainsSpread */) {
             // If the this node contains a SpreadElementExpression then it is an ES6
             // node.
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+        return transformFlags & ~537396545 /* ArrayLiteralOrCallOrNewExcludes */;
     }
     function computeBinaryExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22632,19 +22705,19 @@ var ts;
         if (operatorTokenKind === 57 /* EqualsToken */ && leftKind === 176 /* ObjectLiteralExpression */) {
             // Destructuring object assignments with are ES2015 syntax
             // and possibly ESNext if they contain rest
-            transformFlags |= 48 /* AssertESNext */ | 3072 /* AssertES2015 */ | 49152 /* AssertDestructuringAssignment */;
+            transformFlags |= 8 /* AssertESNext */ | 192 /* AssertES2015 */ | 3072 /* AssertDestructuringAssignment */;
         }
         else if (operatorTokenKind === 57 /* EqualsToken */ && leftKind === 175 /* ArrayLiteralExpression */) {
             // Destructuring assignments are ES2015 syntax.
-            transformFlags |= 3072 /* AssertES2015 */ | 49152 /* AssertDestructuringAssignment */;
+            transformFlags |= 192 /* AssertES2015 */ | 3072 /* AssertDestructuringAssignment */;
         }
         else if (operatorTokenKind === 39 /* AsteriskAsteriskToken */
             || operatorTokenKind === 61 /* AsteriskAsteriskEqualsToken */) {
             // Exponentiation is ES2016 syntax.
-            transformFlags |= 768 /* AssertES2016 */;
+            transformFlags |= 32 /* AssertES2016 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeParameter(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22656,25 +22729,25 @@ var ts;
         // syntax.
         if (node.questionToken
             || node.type
-            || subtreeFlags & 65536 /* ContainsDecorators */
+            || subtreeFlags & 4096 /* ContainsDecorators */
             || ts.isThisIdentifier(name)) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         // If a parameter has an accessibility modifier, then it is TypeScript syntax.
         if (modifierFlags & 92 /* ParameterPropertyModifier */) {
-            transformFlags |= 3 /* AssertTypeScript */ | 4194304 /* ContainsParameterPropertyAssignments */;
+            transformFlags |= 3 /* AssertTypeScript */ | 262144 /* ContainsParameterPropertyAssignments */;
         }
         // parameters with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If a parameter has an initializer, a binding pattern or a dotDotDot token, then
         // it is ES6 syntax and its container must emit default value assignments or parameter destructuring downlevel.
-        if (subtreeFlags & 67108864 /* ContainsBindingPattern */ || initializer || dotDotDotToken) {
-            transformFlags |= 3072 /* AssertES2015 */ | 2097152 /* ContainsDefaultValueAssignments */;
+        if (subtreeFlags & 8388608 /* ContainsBindingPattern */ || initializer || dotDotDotToken) {
+            transformFlags |= 192 /* AssertES2015 */ | 131072 /* ContainsDefaultValueAssignments */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~604001621 /* ParameterExcludes */;
+        return transformFlags & ~536872257 /* ParameterExcludes */;
     }
     function computeParenthesizedExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22690,11 +22763,11 @@ var ts;
         }
         // If the expression of a ParenthesizedExpression is a destructuring assignment,
         // then the ParenthesizedExpression is a destructuring assignment.
-        if (expressionTransformFlags & 16384 /* DestructuringAssignment */) {
-            transformFlags |= 16384 /* DestructuringAssignment */;
+        if (expressionTransformFlags & 1024 /* DestructuringAssignment */) {
+            transformFlags |= 1024 /* DestructuringAssignment */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeClassDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -22705,47 +22778,47 @@ var ts;
         }
         else {
             // A ClassDeclaration is ES6 syntax.
-            transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+            transformFlags = subtreeFlags | 192 /* AssertES2015 */;
             // A class with a parameter property assignment, property initializer, or decorator is
             // TypeScript syntax.
             // An exported declaration may be TypeScript syntax, but is handled by the visitor
             // for a namespace declaration.
-            if ((subtreeFlags & 4390912 /* TypeScriptClassSyntaxMask */)
+            if ((subtreeFlags & 274432 /* TypeScriptClassSyntaxMask */)
                 || node.typeParameters) {
                 transformFlags |= 3 /* AssertTypeScript */;
             }
-            if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+            if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
                 // A computed property name containing `this` might need to be rewritten,
                 // so propagate the ContainsLexicalThis flag upward.
-                transformFlags |= 262144 /* ContainsLexicalThis */;
+                transformFlags |= 16384 /* ContainsLexicalThis */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~559895893 /* ClassExcludes */;
+        return transformFlags & ~539358529 /* ClassExcludes */;
     }
     function computeClassExpression(node, subtreeFlags) {
         // A ClassExpression is ES6 syntax.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // A class with a parameter property assignment, property initializer, or decorator is
         // TypeScript syntax.
-        if (subtreeFlags & 4390912 /* TypeScriptClassSyntaxMask */
+        if (subtreeFlags & 274432 /* TypeScriptClassSyntaxMask */
             || node.typeParameters) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
-        if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+        if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
             // A computed property name containing `this` might need to be rewritten,
             // so propagate the ContainsLexicalThis flag upward.
-            transformFlags |= 262144 /* ContainsLexicalThis */;
+            transformFlags |= 16384 /* ContainsLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~559895893 /* ClassExcludes */;
+        return transformFlags & ~539358529 /* ClassExcludes */;
     }
     function computeHeritageClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         switch (node.token) {
             case 84 /* ExtendsKeyword */:
                 // An `extends` HeritageClause is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 107 /* ImplementsKeyword */:
                 // An `implements` HeritageClause is TypeScript syntax.
@@ -22756,27 +22829,27 @@ var ts;
                 break;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeCatchClause(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         if (node.variableDeclaration && ts.isBindingPattern(node.variableDeclaration.name)) {
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~537920833 /* CatchClauseExcludes */;
     }
     function computeExpressionWithTypeArguments(node, subtreeFlags) {
         // An ExpressionWithTypeArguments is ES6 syntax, as it is used in the
         // extends clause of a class.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // If an ExpressionWithTypeArguments contains type arguments, then it
         // is TypeScript syntax.
         if (node.typeArguments) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeConstructor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22785,12 +22858,16 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* ConstructorExcludes */;
+        return transformFlags & ~601015617 /* ConstructorExcludes */;
     }
     function computeMethod(node, subtreeFlags) {
         // A MethodDeclaration is ES6 syntax.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // Decorators, TypeScript-specific modifiers, type parameters, type annotations, and
         // overloads are TypeScript syntax.
         if (node.decorators
@@ -22800,16 +22877,20 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         // An async method declaration is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // Currently, we only support generators that were originally async function bodies.
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-            transformFlags |= 12288 /* AssertGenerator */;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+            transformFlags |= 768 /* AssertGenerator */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* MethodOrAccessorExcludes */;
+        return transformFlags & ~601015617 /* MethodOrAccessorExcludes */;
     }
     function computeAccessor(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22821,8 +22902,12 @@ var ts;
             || !node.body) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
+        // function declarations with object rest destructuring are ES Next syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
+        }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~975983957 /* MethodOrAccessorExcludes */;
+        return transformFlags & ~601015617 /* MethodOrAccessorExcludes */;
     }
     function computePropertyDeclaration(node, subtreeFlags) {
         // A PropertyDeclaration is TypeScript syntax.
@@ -22830,10 +22915,10 @@ var ts;
         // If the PropertyDeclaration has an initializer, we need to inform its ancestor
         // so that it handle the transformation.
         if (node.initializer) {
-            transformFlags |= 131072 /* ContainsPropertyInitializer */;
+            transformFlags |= 8192 /* ContainsPropertyInitializer */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeFunctionDeclaration(node, subtreeFlags) {
         var transformFlags;
@@ -22845,7 +22930,7 @@ var ts;
             transformFlags = 3 /* AssertTypeScript */;
         }
         else {
-            transformFlags = subtreeFlags | 268435456 /* ContainsHoistedDeclarationOrCompletion */;
+            transformFlags = subtreeFlags | 33554432 /* ContainsHoistedDeclarationOrCompletion */;
             // TypeScript-specific modifiers, type parameters, and type annotations are TypeScript
             // syntax.
             if (modifierFlags & 2270 /* TypeScriptModifier */
@@ -22855,29 +22940,29 @@ var ts;
             }
             // An async function declaration is ES2017 syntax.
             if (modifierFlags & 256 /* Async */) {
-                transformFlags |= 192 /* AssertES2017 */;
+                transformFlags |= 16 /* AssertES2017 */;
             }
             // function declarations with object rest destructuring are ES Next syntax
-            if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-                transformFlags |= 48 /* AssertESNext */;
+            if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+                transformFlags |= 8 /* AssertESNext */;
             }
             // If a FunctionDeclaration's subtree has marked the container as needing to capture the
             // lexical this, or the function contains parameters with initializers, then this node is
             // ES6 syntax.
-            if (subtreeFlags & 2621440 /* ES2015FunctionSyntaxMask */) {
-                transformFlags |= 3072 /* AssertES2015 */;
+            if (subtreeFlags & 163840 /* ES2015FunctionSyntaxMask */) {
+                transformFlags |= 192 /* AssertES2015 */;
             }
             // If a FunctionDeclaration is generator function and is the body of a
             // transformed async function, then this node can be transformed to a
             // down-level generator.
             // Currently we do not support transforming any other generator fucntions
             // down level.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-                transformFlags |= 12288 /* AssertGenerator */;
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+                transformFlags |= 768 /* AssertGenerator */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~980243797 /* FunctionExcludes */;
+        return transformFlags & ~601281857 /* FunctionExcludes */;
     }
     function computeFunctionExpression(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22890,32 +22975,32 @@ var ts;
         }
         // An async function expression is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // function expressions with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If a FunctionExpression's subtree has marked the container as needing to capture the
         // lexical this, or the function contains parameters with initializers, then this node is
         // ES6 syntax.
-        if (subtreeFlags & 2621440 /* ES2015FunctionSyntaxMask */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        if (subtreeFlags & 163840 /* ES2015FunctionSyntaxMask */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         // If a FunctionExpression is generator function and is the body of a
         // transformed async function, then this node can be transformed to a
         // down-level generator.
         // Currently we do not support transforming any other generator fucntions
         // down level.
-        if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
-            transformFlags |= 12288 /* AssertGenerator */;
+        if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
+            transformFlags |= 768 /* AssertGenerator */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~980243797 /* FunctionExcludes */;
+        return transformFlags & ~601281857 /* FunctionExcludes */;
     }
     function computeArrowFunction(node, subtreeFlags) {
         // An ArrowFunction is ES6 syntax, and excludes markers that should not escape the scope of an ArrowFunction.
-        var transformFlags = subtreeFlags | 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 192 /* AssertES2015 */;
         // TypeScript-specific modifiers, type parameters, and type annotations are TypeScript
         // syntax.
         if (ts.hasModifier(node, 2270 /* TypeScriptModifier */)
@@ -22925,18 +23010,18 @@ var ts;
         }
         // An async arrow function is ES2017 syntax.
         if (ts.hasModifier(node, 256 /* Async */)) {
-            transformFlags |= 192 /* AssertES2017 */;
+            transformFlags |= 16 /* AssertES2017 */;
         }
         // arrow functions with object rest destructuring are ES Next syntax
-        if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-            transformFlags |= 48 /* AssertESNext */;
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // If an ArrowFunction contains a lexical this, its container must capture the lexical this.
-        if (subtreeFlags & 262144 /* ContainsLexicalThis */) {
-            transformFlags |= 524288 /* ContainsCapturedLexicalThis */;
+        if (subtreeFlags & 16384 /* ContainsLexicalThis */) {
+            transformFlags |= 32768 /* ContainsCapturedLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~979719509 /* ArrowFunctionExcludes */;
+        return transformFlags & ~601249089 /* ArrowFunctionExcludes */;
     }
     function computePropertyAccess(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -22945,28 +23030,24 @@ var ts;
         // If a PropertyAccessExpression starts with a super keyword, then it is
         // ES6 syntax, and requires a lexical `this` binding.
         if (expressionKind === 96 /* SuperKeyword */) {
-            transformFlags |= 262144 /* ContainsLexicalThis */;
+            transformFlags |= 16384 /* ContainsLexicalThis */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeVariableDeclaration(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
-        var nameKind = node.name.kind;
-        // A VariableDeclaration with an object binding pattern is ES2015 syntax
-        // and possibly ESNext syntax if it contains an object binding pattern
-        if (nameKind === 172 /* ObjectBindingPattern */) {
-            transformFlags |= 48 /* AssertESNext */ | 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
-        }
-        else if (nameKind === 173 /* ArrayBindingPattern */) {
-            transformFlags |= 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
+        transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+        // A VariableDeclaration containing ObjectRest is ESNext syntax
+        if (subtreeFlags & 1048576 /* ContainsObjectRest */) {
+            transformFlags |= 8 /* AssertESNext */;
         }
         // Type annotations are TypeScript syntax.
         if (node.type) {
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeVariableStatement(node, subtreeFlags) {
         var transformFlags;
@@ -22978,22 +23059,22 @@ var ts;
         }
         else {
             transformFlags = subtreeFlags;
-            if (declarationListTransformFlags & 67108864 /* ContainsBindingPattern */) {
-                transformFlags |= 3072 /* AssertES2015 */;
+            if (declarationListTransformFlags & 8388608 /* ContainsBindingPattern */) {
+                transformFlags |= 192 /* AssertES2015 */;
             }
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeLabeledStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         // A labeled statement containing a block scoped binding *may* need to be transformed from ES6.
-        if (subtreeFlags & 33554432 /* ContainsBlockScopedBinding */
+        if (subtreeFlags & 4194304 /* ContainsBlockScopedBinding */
             && ts.isIterationStatement(node, /*lookInLabeledStatements*/ true)) {
-            transformFlags |= 3072 /* AssertES2015 */;
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeImportEquals(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
@@ -23002,18 +23083,18 @@ var ts;
             transformFlags |= 3 /* AssertTypeScript */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeExpressionStatement(node, subtreeFlags) {
         var transformFlags = subtreeFlags;
         // If the expression of an expression statement is a destructuring assignment,
         // then we treat the statement as ES6 so that we can indicate that we do not
         // need to hold on to the right-hand side.
-        if (node.expression.transformFlags & 16384 /* DestructuringAssignment */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        if (node.expression.transformFlags & 1024 /* DestructuringAssignment */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~536892757 /* NodeExcludes */;
+        return transformFlags & ~536872257 /* NodeExcludes */;
     }
     function computeModuleDeclaration(node, subtreeFlags) {
         var transformFlags = 3 /* AssertTypeScript */;
@@ -23022,29 +23103,29 @@ var ts;
             transformFlags |= subtreeFlags;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~839734613 /* ModuleExcludes */;
+        return transformFlags & ~574674241 /* ModuleExcludes */;
     }
     function computeVariableDeclarationList(node, subtreeFlags) {
-        var transformFlags = subtreeFlags | 268435456 /* ContainsHoistedDeclarationOrCompletion */;
-        if (subtreeFlags & 67108864 /* ContainsBindingPattern */) {
-            transformFlags |= 3072 /* AssertES2015 */;
+        var transformFlags = subtreeFlags | 33554432 /* ContainsHoistedDeclarationOrCompletion */;
+        if (subtreeFlags & 8388608 /* ContainsBindingPattern */) {
+            transformFlags |= 192 /* AssertES2015 */;
         }
         // If a VariableDeclarationList is `let` or `const`, then it is ES6 syntax.
         if (node.flags & 3 /* BlockScoped */) {
-            transformFlags |= 3072 /* AssertES2015 */ | 33554432 /* ContainsBlockScopedBinding */;
+            transformFlags |= 192 /* AssertES2015 */ | 4194304 /* ContainsBlockScopedBinding */;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
-        return transformFlags & ~604001621 /* VariableDeclarationListExcludes */;
+        return transformFlags & ~546309441 /* VariableDeclarationListExcludes */;
     }
     function computeOther(node, kind, subtreeFlags) {
         // Mark transformations needed for each node
         var transformFlags = subtreeFlags;
-        var excludeFlags = 536892757 /* NodeExcludes */;
+        var excludeFlags = 536872257 /* NodeExcludes */;
         switch (kind) {
             case 119 /* AsyncKeyword */:
             case 189 /* AwaitExpression */:
                 // async/await is ES2017 syntax
-                transformFlags |= 192 /* AssertES2017 */;
+                transformFlags |= 16 /* AssertES2017 */;
                 break;
             case 113 /* PublicKeyword */:
             case 111 /* PrivateKeyword */:
@@ -23070,11 +23151,11 @@ var ts;
             case 251 /* JsxSpreadAttribute */:
             case 252 /* JsxExpression */:
                 // These nodes are Jsx syntax.
-                transformFlags |= 12 /* AssertJsx */;
+                transformFlags |= 4 /* AssertJsx */;
                 break;
             case 213 /* ForOfStatement */:
                 // for-of might be ESNext if it has a rest destructuring
-                transformFlags |= 48 /* AssertESNext */;
+                transformFlags |= 8 /* AssertESNext */;
             // FALLTHROUGH
             case 12 /* NoSubstitutionTemplateLiteral */:
             case 13 /* TemplateHead */:
@@ -23085,11 +23166,11 @@ var ts;
             case 258 /* ShorthandPropertyAssignment */:
             case 114 /* StaticKeyword */:
                 // These nodes are ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 195 /* YieldExpression */:
                 // This node is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */ | 134217728 /* ContainsYield */;
+                transformFlags |= 192 /* AssertES2015 */ | 16777216 /* ContainsYield */;
                 break;
             case 118 /* AnyKeyword */:
             case 132 /* NumberKeyword */:
@@ -23130,8 +23211,8 @@ var ts;
                 // Even though computed property names are ES6, we don't treat them as such.
                 // This is so that they can flow through PropertyName transforms unaffected.
                 // Instead, we mark the container as ES6, so that it can properly handle the transform.
-                transformFlags |= 16777216 /* ContainsComputedPropertyName */;
-                if (subtreeFlags & 262144 /* ContainsLexicalThis */) {
+                transformFlags |= 2097152 /* ContainsComputedPropertyName */;
+                if (subtreeFlags & 16384 /* ContainsLexicalThis */) {
                     // A computed method name like `[this.getName()](x: string) { ... }` needs to
                     // distinguish itself from the normal case of a method body containing `this`:
                     // `this` inside a method doesn't need to be rewritten (the method provides `this`),
@@ -23140,66 +23221,69 @@ var ts;
                     // `_this = this; () => class K { [_this.getName()]() { ... } }`
                     // To make this distinction, use ContainsLexicalThisInComputedPropertyName
                     // instead of ContainsLexicalThis for computed property names
-                    transformFlags |= 1048576 /* ContainsLexicalThisInComputedPropertyName */;
+                    transformFlags |= 65536 /* ContainsLexicalThisInComputedPropertyName */;
                 }
                 break;
             case 196 /* SpreadElement */:
+                transformFlags |= 192 /* AssertES2015 */ | 524288 /* ContainsSpread */;
+                break;
             case 259 /* SpreadAssignment */:
-                // This node is ES6 or ES next syntax, but is handled by a containing node.
-                transformFlags |= 8388608 /* ContainsSpreadExpression */;
+                transformFlags |= 8 /* AssertESNext */ | 1048576 /* ContainsObjectSpread */;
                 break;
-            case 174 /* BindingElement */:
-                if (node.dotDotDotToken) {
-                    // this node is ES2015 or ES next syntax, but is handled by a containing node.
-                    transformFlags |= 8388608 /* ContainsSpreadExpression */;
-                }
             case 96 /* SuperKeyword */:
                 // This node is ES6 syntax.
-                transformFlags |= 3072 /* AssertES2015 */;
+                transformFlags |= 192 /* AssertES2015 */;
                 break;
             case 98 /* ThisKeyword */:
                 // Mark this node and its ancestors as containing a lexical `this` keyword.
-                transformFlags |= 262144 /* ContainsLexicalThis */;
+                transformFlags |= 16384 /* ContainsLexicalThis */;
                 break;
             case 172 /* ObjectBindingPattern */:
-            case 173 /* ArrayBindingPattern */:
-                // These nodes are ES2015 or ES Next syntax.
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
-                    transformFlags |= 48 /* AssertESNext */ | 67108864 /* ContainsBindingPattern */;
+                transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+                if (subtreeFlags & 524288 /* ContainsRest */) {
+                    transformFlags |= 8 /* AssertESNext */ | 1048576 /* ContainsObjectRest */;
                 }
-                else {
-                    transformFlags |= 3072 /* AssertES2015 */ | 67108864 /* ContainsBindingPattern */;
+                excludeFlags = 537396545 /* BindingPatternExcludes */;
+                break;
+            case 173 /* ArrayBindingPattern */:
+                transformFlags |= 192 /* AssertES2015 */ | 8388608 /* ContainsBindingPattern */;
+                excludeFlags = 537396545 /* BindingPatternExcludes */;
+                break;
+            case 174 /* BindingElement */:
+                transformFlags |= 192 /* AssertES2015 */;
+                if (node.dotDotDotToken) {
+                    transformFlags |= 524288 /* ContainsRest */;
                 }
                 break;
             case 145 /* Decorator */:
                 // This node is TypeScript syntax, and marks its container as also being TypeScript syntax.
-                transformFlags |= 3 /* AssertTypeScript */ | 65536 /* ContainsDecorators */;
+                transformFlags |= 3 /* AssertTypeScript */ | 4096 /* ContainsDecorators */;
                 break;
             case 176 /* ObjectLiteralExpression */:
-                excludeFlags = 554784085 /* ObjectLiteralExcludes */;
-                if (subtreeFlags & 16777216 /* ContainsComputedPropertyName */) {
+                excludeFlags = 540087617 /* ObjectLiteralExcludes */;
+                if (subtreeFlags & 2097152 /* ContainsComputedPropertyName */) {
                     // If an ObjectLiteralExpression contains a ComputedPropertyName, then it
                     // is an ES6 node.
-                    transformFlags |= 3072 /* AssertES2015 */;
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
-                if (subtreeFlags & 1048576 /* ContainsLexicalThisInComputedPropertyName */) {
+                if (subtreeFlags & 65536 /* ContainsLexicalThisInComputedPropertyName */) {
                     // A computed property name containing `this` might need to be rewritten,
                     // so propagate the ContainsLexicalThis flag upward.
-                    transformFlags |= 262144 /* ContainsLexicalThis */;
+                    transformFlags |= 16384 /* ContainsLexicalThis */;
                 }
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+                if (subtreeFlags & 1048576 /* ContainsObjectSpread */) {
                     // If an ObjectLiteralExpression contains a spread element, then it
                     // is an ES next node.
-                    transformFlags |= 48 /* AssertESNext */;
+                    transformFlags |= 8 /* AssertESNext */;
                 }
                 break;
             case 175 /* ArrayLiteralExpression */:
             case 180 /* NewExpression */:
-                excludeFlags = 545281365 /* ArrayLiteralOrCallOrNewExcludes */;
-                if (subtreeFlags & 8388608 /* ContainsSpreadExpression */) {
+                excludeFlags = 537396545 /* ArrayLiteralOrCallOrNewExcludes */;
+                if (subtreeFlags & 524288 /* ContainsSpread */) {
                     // If the this node contains a SpreadExpression, then it is an ES6
                     // node.
-                    transformFlags |= 3072 /* AssertES2015 */;
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 209 /* DoStatement */:
@@ -23207,19 +23291,19 @@ var ts;
             case 211 /* ForStatement */:
             case 212 /* ForInStatement */:
                 // A loop containing a block scoped binding *may* need to be transformed from ES6.
-                if (subtreeFlags & 33554432 /* ContainsBlockScopedBinding */) {
-                    transformFlags |= 3072 /* AssertES2015 */;
+                if (subtreeFlags & 4194304 /* ContainsBlockScopedBinding */) {
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 261 /* SourceFile */:
-                if (subtreeFlags & 524288 /* ContainsCapturedLexicalThis */) {
-                    transformFlags |= 3072 /* AssertES2015 */;
+                if (subtreeFlags & 32768 /* ContainsCapturedLexicalThis */) {
+                    transformFlags |= 192 /* AssertES2015 */;
                 }
                 break;
             case 216 /* ReturnStatement */:
             case 214 /* ContinueStatement */:
             case 215 /* BreakStatement */:
-                transformFlags |= 268435456 /* ContainsHoistedDeclarationOrCompletion */;
+                transformFlags |= 33554432 /* ContainsHoistedDeclarationOrCompletion */;
                 break;
         }
         node.transformFlags = transformFlags | 536870912 /* HasComputedFlags */;
@@ -23241,27 +23325,27 @@ var ts;
             case 179 /* CallExpression */:
             case 180 /* NewExpression */:
             case 175 /* ArrayLiteralExpression */:
-                return 545281365 /* ArrayLiteralOrCallOrNewExcludes */;
+                return 537396545 /* ArrayLiteralOrCallOrNewExcludes */;
             case 230 /* ModuleDeclaration */:
-                return 839734613 /* ModuleExcludes */;
+                return 574674241 /* ModuleExcludes */;
             case 144 /* Parameter */:
-                return 604001621 /* ParameterExcludes */;
+                return 536872257 /* ParameterExcludes */;
             case 185 /* ArrowFunction */:
-                return 979719509 /* ArrowFunctionExcludes */;
+                return 601249089 /* ArrowFunctionExcludes */;
             case 184 /* FunctionExpression */:
             case 225 /* FunctionDeclaration */:
-                return 980243797 /* FunctionExcludes */;
+                return 601281857 /* FunctionExcludes */;
             case 224 /* VariableDeclarationList */:
-                return 604001621 /* VariableDeclarationListExcludes */;
+                return 546309441 /* VariableDeclarationListExcludes */;
             case 226 /* ClassDeclaration */:
             case 197 /* ClassExpression */:
-                return 559895893 /* ClassExcludes */;
+                return 539358529 /* ClassExcludes */;
             case 150 /* Constructor */:
-                return 975983957 /* ConstructorExcludes */;
+                return 601015617 /* ConstructorExcludes */;
             case 149 /* MethodDeclaration */:
             case 151 /* GetAccessor */:
             case 152 /* SetAccessor */:
-                return 975983957 /* MethodOrAccessorExcludes */;
+                return 601015617 /* MethodOrAccessorExcludes */;
             case 118 /* AnyKeyword */:
             case 132 /* NumberKeyword */:
             case 129 /* NeverKeyword */:
@@ -23279,9 +23363,14 @@ var ts;
             case 228 /* TypeAliasDeclaration */:
                 return -3 /* TypeExcludes */;
             case 176 /* ObjectLiteralExpression */:
-                return 554784085 /* ObjectLiteralExcludes */;
+                return 540087617 /* ObjectLiteralExcludes */;
+            case 256 /* CatchClause */:
+                return 537920833 /* CatchClauseExcludes */;
+            case 172 /* ObjectBindingPattern */:
+            case 173 /* ArrayBindingPattern */:
+                return 537396545 /* BindingPatternExcludes */;
             default:
-                return 536892757 /* NodeExcludes */;
+                return 536872257 /* NodeExcludes */;
         }
     }
     ts.getTransformFlagsSubtreeExclusions = getTransformFlagsSubtreeExclusions;
@@ -23332,6 +23421,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -24100,6 +24190,7 @@ var ts;
             getJsxElementAttributesType: getJsxElementAttributesType,
             getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
             isOptionalParameter: isOptionalParameter,
+            tryGetMemberInModuleExports: tryGetMemberInModuleExports,
             tryFindAmbientModuleWithoutAugmentations: function (moduleName) {
                 // we deliberately exclude augmentations
                 // since we are only interested in declarations of the module itself
@@ -24111,6 +24202,7 @@ var ts;
         var intersectionTypes = ts.createMap();
         var stringLiteralTypes = ts.createMap();
         var numericLiteralTypes = ts.createMap();
+        var indexedAccessTypes = ts.createMap();
         var evolvingArrayTypes = [];
         var unknownSymbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "unknown");
         var resolvingSymbol = createSymbol(67108864 /* Transient */, "__resolving__");
@@ -24130,7 +24222,6 @@ var ts;
         var voidType = createIntrinsicType(1024 /* Void */, "void");
         var neverType = createIntrinsicType(8192 /* Never */, "never");
         var silentNeverType = createIntrinsicType(8192 /* Never */, "never");
-        var stringOrNumberType = getUnionType([stringType, numberType]);
         var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
         var emptyTypeLiteralSymbol = createSymbol(2048 /* TypeLiteral */ | 67108864 /* Transient */, "__type");
         emptyTypeLiteralSymbol.members = ts.createMap();
@@ -24853,6 +24944,7 @@ var ts;
                     if (!errorLocation ||
                         !checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) &&
                             !checkAndReportErrorForExtendingInterface(errorLocation) &&
+                            !checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) &&
                             !checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning)) {
                         error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                     }
@@ -24951,6 +25043,16 @@ var ts;
                     return undefined;
             }
         }
+        function checkAndReportErrorForUsingTypeAsNamespace(errorLocation, name, meaning) {
+            if (meaning === 1920 /* Namespace */) {
+                var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 /* Type */ & ~107455 /* Value */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined));
+                if (symbol) {
+                    error(errorLocation, ts.Diagnostics._0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here, name);
+                    return true;
+                }
+            }
+            return false;
+        }
         function checkAndReportErrorForUsingTypeAsValue(errorLocation, name, meaning) {
             if (meaning & (107455 /* Value */ & ~1024 /* NamespaceModule */)) {
                 var symbol = resolveSymbol(resolveName(errorLocation, name, 793064 /* Type */ & ~107455 /* Value */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined));
@@ -25079,31 +25181,31 @@ var ts;
             var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
             var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
             if (targetSymbol) {
-                var name_17 = specifier.propertyName || specifier.name;
-                if (name_17.text) {
+                var name_16 = specifier.propertyName || specifier.name;
+                if (name_16.text) {
                     if (ts.isShorthandAmbientModuleSymbol(moduleSymbol)) {
                         return moduleSymbol;
                     }
                     var symbolFromVariable = void 0;
                     // First check if module was specified with "export=". If so, get the member from the resolved type
                     if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
-                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_17.text);
+                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_16.text);
                     }
                     else {
-                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_17.text);
+                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_16.text);
                     }
                     // if symbolFromVariable is export - get its final target
                     symbolFromVariable = resolveSymbol(symbolFromVariable);
-                    var symbolFromModule = getExportOfModule(targetSymbol, name_17.text);
+                    var symbolFromModule = getExportOfModule(targetSymbol, name_16.text);
                     // If the export member we're looking for is default, and there is no real default but allowSyntheticDefaultImports is on, return the entire module as the default
-                    if (!symbolFromModule && allowSyntheticDefaultImports && name_17.text === "default") {
+                    if (!symbolFromModule && allowSyntheticDefaultImports && name_16.text === "default") {
                         symbolFromModule = resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                     }
                     var symbol = symbolFromModule && symbolFromVariable ?
                         combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                         symbolFromModule || symbolFromVariable;
                     if (!symbol) {
-                        error(name_17, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_17));
+                        error(name_16, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_16));
                     }
                     return symbol;
                 }
@@ -25357,6 +25459,12 @@ var ts;
         function getExportsOfModuleAsArray(moduleSymbol) {
             return symbolsToArray(getExportsOfModule(moduleSymbol));
         }
+        function tryGetMemberInModuleExports(memberName, moduleSymbol) {
+            var symbolTable = getExportsOfModule(moduleSymbol);
+            if (symbolTable) {
+                return symbolTable[memberName];
+            }
+        }
         function getExportsOfSymbol(symbol) {
             return symbol.flags & 1536 /* Module */ ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
         }
@@ -25967,9 +26075,9 @@ var ts;
                     if (!accessibleSymbolChain ||
                         needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
                         // Go up and add our parent.
-                        var parent_6 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
-                        if (parent_6) {
-                            walkSymbol(parent_6, getQualifiedLeftMeaning(meaning), /*endOfChain*/ false);
+                        var parent_5 = getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol);
+                        if (parent_5) {
+                            walkSymbol(parent_5, getQualifiedLeftMeaning(meaning), /*endOfChain*/ false);
                         }
                     }
                     if (accessibleSymbolChain) {
@@ -26119,14 +26227,14 @@ var ts;
                             while (i < length_1) {
                                 // Find group of type arguments for type parameters with the same declaring container.
                                 var start = i;
-                                var parent_7 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                 do {
                                     i++;
-                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_7);
+                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                 // When type parameters are their own type arguments for the whole group (i.e. we have
                                 // the default outer type arguments), we don't show the group.
                                 if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
-                                    writeSymbolTypeReference(parent_7, typeArguments, start, i, flags);
+                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                     writePunctuation(writer, 22 /* DotToken */);
                                 }
                             }
@@ -26565,14 +26673,14 @@ var ts;
                         if (ts.isExternalModuleAugmentation(node)) {
                             return true;
                         }
-                        var parent_8 = getDeclarationContainer(node);
+                        var parent_7 = getDeclarationContainer(node);
                         // If the node is not exported or it is not ambient module element (except import declaration)
                         if (!(ts.getCombinedModifierFlags(node) & 1 /* Export */) &&
-                            !(node.kind !== 234 /* ImportEqualsDeclaration */ && parent_8.kind !== 261 /* SourceFile */ && ts.isInAmbientContext(parent_8))) {
-                            return isGlobalSourceFile(parent_8);
+                            !(node.kind !== 234 /* ImportEqualsDeclaration */ && parent_7.kind !== 261 /* SourceFile */ && ts.isInAmbientContext(parent_7))) {
+                            return isGlobalSourceFile(parent_7);
                         }
                         // Exported members/ambient module elements (exception import declaration) are visible if parent is visible
-                        return isDeclarationVisible(parent_8);
+                        return isDeclarationVisible(parent_7);
                     case 147 /* PropertyDeclaration */:
                     case 146 /* PropertySignature */:
                     case 151 /* GetAccessor */:
@@ -26757,15 +26865,15 @@ var ts;
             return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node, /*includeOptionality*/ false);
         }
         function isComputedNonLiteralName(name) {
-            return name.kind === 142 /* ComputedPropertyName */ && !ts.isStringOrNumericLiteral(name.expression.kind);
+            return name.kind === 142 /* ComputedPropertyName */ && !ts.isStringOrNumericLiteral(name.expression);
         }
         function getRestType(source, properties, symbol) {
             ts.Debug.assert(!!(source.flags & 32768 /* Object */), "Rest types only support object types right now.");
             var members = ts.createMap();
             var names = ts.createMap();
             for (var _i = 0, properties_2 = properties; _i < properties_2.length; _i++) {
-                var name_18 = properties_2[_i];
-                names[ts.getTextOfPropertyName(name_18)] = true;
+                var name_17 = properties_2[_i];
+                names[ts.getTextOfPropertyName(name_17)] = true;
             }
             for (var _a = 0, _b = getPropertiesOfType(source); _a < _b.length; _a++) {
                 var prop = _b[_a];
@@ -26808,7 +26916,7 @@ var ts;
                     var literalMembers = [];
                     for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
                         var element = _a[_i];
-                        if (element.kind !== 198 /* OmittedExpression */ && !element.dotDotDotToken) {
+                        if (!element.dotDotDotToken) {
                             literalMembers.push(element.propertyName || element.name);
                         }
                     }
@@ -26816,8 +26924,8 @@ var ts;
                 }
                 else {
                     // Use explicitly specified property name ({ p: xxx } form), or otherwise the implied name ({ p } form)
-                    var name_19 = declaration.propertyName || declaration.name;
-                    if (isComputedNonLiteralName(name_19)) {
+                    var name_18 = declaration.propertyName || declaration.name;
+                    if (isComputedNonLiteralName(name_18)) {
                         // computed properties with non-literal names are treated as 'any'
                         return anyType;
                     }
@@ -26826,12 +26934,12 @@ var ts;
                     }
                     // Use type of the specified property, or otherwise, for a numeric name, the type of the numeric index signature,
                     // or otherwise the type of the string index signature.
-                    var text = ts.getTextOfPropertyName(name_19);
+                    var text = ts.getTextOfPropertyName(name_18);
                     type = getTypeOfPropertyOfType(parentType, text) ||
                         isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1 /* Number */) ||
                         getIndexTypeOfType(parentType, 0 /* String */);
                     if (!type) {
-                        error(name_19, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_19));
+                        error(name_18, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_18));
                         return unknownType;
                     }
                 }
@@ -26872,33 +26980,9 @@ var ts;
                 type;
         }
         function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
-            if (jsDocType) {
-                return getTypeFromTypeNode(jsDocType);
-            }
-        }
-        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
-            // First, see if this node has an @type annotation on it directly.
-            var typeTag = ts.getJSDocTypeTag(declaration);
-            if (typeTag && typeTag.typeExpression) {
-                return typeTag.typeExpression.type;
-            }
-            if (declaration.kind === 223 /* VariableDeclaration */ &&
-                declaration.parent.kind === 224 /* VariableDeclarationList */ &&
-                declaration.parent.parent.kind === 205 /* VariableStatement */) {
-                // @type annotation might have been on the variable statement, try that instead.
-                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
-                if (annotation && annotation.typeExpression) {
-                    return annotation.typeExpression.type;
-                }
-            }
-            else if (declaration.kind === 144 /* Parameter */) {
-                // If it's a parameter, see if the parent has a jsdoc comment with an @param
-                // annotation.
-                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
-                if (paramTag && paramTag.typeExpression) {
-                    return paramTag.typeExpression.type;
-                }
+            var jsdocType = ts.getJSDocType(declaration);
+            if (jsdocType) {
+                return getTypeFromTypeNode(jsdocType);
             }
             return undefined;
         }
@@ -26924,9 +27008,11 @@ var ts;
                     return type;
                 }
             }
-            // A variable declared in a for..in statement is always of type string
+            // A variable declared in a for..in statement is of type string, or of type keyof T when the
+            // right hand expression is of a type parameter type.
             if (declaration.parent.parent.kind === 212 /* ForInStatement */) {
-                return stringType;
+                var indexType = getIndexType(checkNonNullExpression(declaration.parent.parent.expression));
+                return indexType.flags & (16384 /* TypeParameter */ | 262144 /* Index */) ? indexType : stringType;
             }
             if (declaration.parent.parent.kind === 213 /* ForOfStatement */) {
                 // checkRightHandSideOfForOf will return undefined if the for-of expression type was
@@ -26942,9 +27028,11 @@ var ts;
             if (declaration.type) {
                 return addOptionality(getTypeFromTypeNode(declaration.type), /*optional*/ declaration.questionToken && includeOptionality);
             }
-            if (declaration.kind === 223 /* VariableDeclaration */ && !ts.isBindingPattern(declaration.name) &&
+            if ((compilerOptions.noImplicitAny || declaration.flags & 2097152 /* JavaScriptFile */) &&
+                declaration.kind === 223 /* VariableDeclaration */ && !ts.isBindingPattern(declaration.name) &&
                 !(ts.getCombinedModifierFlags(declaration) & 1 /* Export */) && !ts.isInAmbientContext(declaration)) {
-                // Use control flow tracked 'any' type for non-ambient, non-exported var or let variables with no
+                // If --noImplicitAny is on or the declaration is in a Javascript file,
+                // use control flow tracked 'any' type for non-ambient, non-exported var or let variables with no
                 // initializer or a 'null' or 'undefined' initializer.
                 if (!(ts.getCombinedNodeFlags(declaration) & 2 /* Const */) && (!declaration.initializer || isNullOrUndefined(declaration.initializer))) {
                     return autoType;
@@ -27123,7 +27211,7 @@ var ts;
                 if (declaration.kind === 240 /* ExportAssignment */) {
                     return links.type = checkExpression(declaration.expression);
                 }
-                if (declaration.flags & 2097152 /* JavaScriptFile */ && declaration.kind === 285 /* JSDocPropertyTag */ && declaration.typeExpression) {
+                if (declaration.flags & 2097152 /* JavaScriptFile */ && declaration.kind === 286 /* JSDocPropertyTag */ && declaration.typeExpression) {
                     return links.type = getTypeFromTypeNode(declaration.typeExpression.type);
                 }
                 // Handle variable, parameter or property
@@ -27140,9 +27228,9 @@ var ts;
                     declaration.kind === 177 /* PropertyAccessExpression */ && declaration.parent.kind === 192 /* BinaryExpression */) {
                     // Use JS Doc type if present on parent expression statement
                     if (declaration.flags & 2097152 /* JavaScriptFile */) {
-                        var typeTag = ts.getJSDocTypeTag(declaration.parent);
-                        if (typeTag && typeTag.typeExpression) {
-                            return links.type = getTypeFromTypeNode(typeTag.typeExpression.type);
+                        var jsdocType = ts.getJSDocType(declaration.parent);
+                        if (jsdocType) {
+                            return links.type = getTypeFromTypeNode(jsdocType);
                         }
                     }
                     var declaredTypes = ts.map(symbol.declarations, function (decl) { return decl.kind === 192 /* BinaryExpression */ ?
@@ -27477,6 +27565,14 @@ var ts;
                 }
                 baseType = getReturnTypeOfSignature(constructors[0]);
             }
+            // In a JS file, you can use the @augments jsdoc tag to specify a base type with type parameters
+            var valueDecl = type.symbol.valueDeclaration;
+            if (valueDecl && ts.isInJavaScriptFile(valueDecl)) {
+                var augTag = ts.getJSDocAugmentsTag(type.symbol.valueDeclaration);
+                if (augTag) {
+                    baseType = getTypeFromTypeNode(augTag.typeExpression.type);
+                }
+            }
             if (baseType === unknownType) {
                 return;
             }
@@ -27485,7 +27581,7 @@ var ts;
                 return;
             }
             if (type === baseType || hasBaseType(baseType, type)) {
-                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
+                error(valueDecl, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
                 return;
             }
             if (type.resolvedBaseTypes === emptyArray) {
@@ -27599,7 +27695,7 @@ var ts;
                 if (!pushTypeResolution(symbol, 2 /* DeclaredType */)) {
                     return unknownType;
                 }
-                var declaration = ts.getDeclarationOfKind(symbol, 284 /* JSDocTypedefTag */);
+                var declaration = ts.getDeclarationOfKind(symbol, 285 /* JSDocTypedefTag */);
                 var type = void 0;
                 if (declaration) {
                     if (declaration.jsDocTypeLiteral) {
@@ -28123,6 +28219,8 @@ var ts;
             var members = ts.createMap();
             var stringIndexInfo;
             var numberIndexInfo;
+            // Resolve upfront such that recursive references see an empty object type.
+            setStructuredTypeMembers(type, emptySymbols, emptyArray, emptyArray, undefined, undefined);
             // In { [P in K]: T }, we refer to P as the type parameter type, K as the constraint type,
             // and T as the template type.
             var typeParameter = getTypeParameterFromMappedType(type);
@@ -28180,6 +28278,9 @@ var ts;
                     instantiateType(getTypeFromTypeNode(type.declaration.type), type.mapper || identityMapper) :
                     unknownType);
         }
+        function getErasedTemplateTypeFromMappedType(type) {
+            return instantiateType(getTemplateTypeFromMappedType(type), createUnaryTypeMapper(getTypeParameterFromMappedType(type), anyType));
+        }
         function isGenericMappedType(type) {
             if (getObjectFlags(type) & 32 /* Mapped */) {
                 var constraintType = getConstraintTypeFromMappedType(type);
@@ -28278,18 +28379,25 @@ var ts;
             return type.resolvedApparentType;
         }
         /**
+         * The apparent type of an indexed access T[K] is the type of T's string index signature, if any.
+         */
+        function getApparentTypeOfIndexedAccess(type) {
+            return getIndexTypeOfType(getApparentType(type.objectType), 0 /* String */) || type;
+        }
+        /**
          * For a type parameter, return the base constraint of the type parameter. For the string, number,
          * boolean, and symbol primitive types, return the corresponding object types. Otherwise return the
          * type itself. Note that the apparent type of a union type is the union type itself.
          */
         function getApparentType(type) {
-            var t = type.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(type) : type;
-            return t.flags & 34 /* StringLike */ ? globalStringType :
+            var t = type.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(type) :
+                type.flags & 524288 /* IndexedAccess */ ? getApparentTypeOfIndexedAccess(type) :
+                    type;
+            return t.flags & 262178 /* StringLike */ ? globalStringType :
                 t.flags & 340 /* NumberLike */ ? globalNumberType :
                     t.flags & 136 /* BooleanLike */ ? globalBooleanType :
                         t.flags & 512 /* ESSymbol */ ? getGlobalESSymbolType() :
-                            t.flags & 262144 /* Index */ ? stringOrNumberType :
-                                t;
+                            t;
         }
         function createUnionOrIntersectionProperty(containingType, name) {
             var types = containingType.types;
@@ -28487,13 +28595,16 @@ var ts;
                 if (node.type && node.type.kind === 273 /* JSDocOptionalType */) {
                     return true;
                 }
-                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
-                if (paramTag) {
-                    if (paramTag.isBracketed) {
-                        return true;
-                    }
-                    if (paramTag.typeExpression) {
-                        return paramTag.typeExpression.type.kind === 273 /* JSDocOptionalType */;
+                var paramTags = ts.getJSDocParameterTags(node);
+                if (paramTags) {
+                    for (var _i = 0, paramTags_1 = paramTags; _i < paramTags_1.length; _i++) {
+                        var paramTag = paramTags_1[_i];
+                        if (paramTag.isBracketed) {
+                            return true;
+                        }
+                        if (paramTag.typeExpression) {
+                            return paramTag.typeExpression.type.kind === 273 /* JSDocOptionalType */;
+                        }
                     }
                 }
             }
@@ -29408,10 +29519,14 @@ var ts;
         }
         function getIndexType(type) {
             return type.flags & 16384 /* TypeParameter */ ? getIndexTypeForTypeParameter(type) :
-                type.flags & 1 /* Any */ || getIndexInfoOfType(type, 0 /* String */) ? stringOrNumberType :
-                    getIndexInfoOfType(type, 1 /* Number */) ? getUnionType([numberType, getLiteralTypeFromPropertyNames(type)]) :
+                getObjectFlags(type) & 32 /* Mapped */ ? getConstraintTypeFromMappedType(type) :
+                    type.flags & 1 /* Any */ || getIndexInfoOfType(type, 0 /* String */) ? stringType :
                         getLiteralTypeFromPropertyNames(type);
         }
+        function getIndexTypeOrString(type) {
+            var indexType = getIndexType(type);
+            return indexType !== neverType ? indexType : stringType;
+        }
         function getTypeFromTypeOperatorNode(node) {
             var links = getNodeLinks(node);
             if (!links.resolvedType) {
@@ -29425,10 +29540,6 @@ var ts;
             type.indexType = indexType;
             return type;
         }
-        function getIndexedAccessTypeForTypeParameter(objectType, indexType) {
-            var indexedAccessTypes = indexType.resolvedIndexedAccessTypes || (indexType.resolvedIndexedAccessTypes = []);
-            return indexedAccessTypes[objectType.id] || (indexedAccessTypes[objectType.id] = createIndexedAccessType(objectType, indexType));
-        }
         function getPropertyTypeForIndexType(objectType, indexType, accessNode, cacheSymbol) {
             var accessExpression = accessNode && accessNode.kind === 178 /* ElementAccessExpression */ ? accessNode : undefined;
             var propName = indexType.flags & (32 /* StringLiteral */ | 64 /* NumberLiteral */ | 256 /* EnumLiteral */) ?
@@ -29451,7 +29562,7 @@ var ts;
                     return getTypeOfSymbol(prop);
                 }
             }
-            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 34 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
+            if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 262178 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
                 if (isTypeAny(objectType)) {
                     return anyType;
                 }
@@ -29491,20 +29602,46 @@ var ts;
             }
             return unknownType;
         }
+        function getIndexedAccessForMappedType(type, indexType, accessNode) {
+            var accessExpression = accessNode && accessNode.kind === 178 /* ElementAccessExpression */ ? accessNode : undefined;
+            if (accessExpression && ts.isAssignmentTarget(accessExpression) && type.declaration.readonlyToken) {
+                error(accessExpression, ts.Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(type));
+                return unknownType;
+            }
+            var mapper = createUnaryTypeMapper(getTypeParameterFromMappedType(type), indexType);
+            var templateMapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
+            return addOptionality(instantiateType(getTemplateTypeFromMappedType(type), templateMapper), !!type.declaration.questionToken);
+        }
         function getIndexedAccessType(objectType, indexType, accessNode) {
-            if (indexType.flags & 16384 /* TypeParameter */) {
-                if (accessNode && !isTypeAssignableTo(getConstraintOfTypeParameter(indexType) || emptyObjectType, getIndexType(objectType))) {
-                    error(accessNode, ts.Diagnostics.Type_0_is_not_constrained_to_keyof_1, typeToString(indexType), typeToString(objectType));
-                    return unknownType;
+            if (indexType.flags & 16384 /* TypeParameter */ ||
+                objectType.flags & 16384 /* TypeParameter */ && indexType.flags & 262144 /* Index */ ||
+                isGenericMappedType(objectType)) {
+                // If either the object type or the index type are type parameters, or if the object type is a mapped
+                // type with a generic constraint, we are performing a higher-order index access where we cannot
+                // meaningfully access the properties of the object type. In those cases, we first check that the
+                // index type is assignable to 'keyof T' for the object type.
+                if (accessNode) {
+                    if (!isTypeAssignableTo(indexType, getIndexType(objectType))) {
+                        error(accessNode, ts.Diagnostics.Type_0_cannot_be_used_to_index_type_1, typeToString(indexType), typeToString(objectType));
+                        return unknownType;
+                    }
                 }
-                return getIndexedAccessTypeForTypeParameter(objectType, indexType);
+                // If the object type is a mapped type { [P in K]: E }, we instantiate E using a mapper that substitutes
+                // the index type for P. For example, for an index access { [P in K]: Box<T[P]> }[X], we construct the
+                // type Box<T[X]>.
+                if (isGenericMappedType(objectType)) {
+                    return getIndexedAccessForMappedType(objectType, indexType, accessNode);
+                }
+                // Otherwise we defer the operation by creating an indexed access type.
+                var id = objectType.id + "," + indexType.id;
+                return indexedAccessTypes[id] || (indexedAccessTypes[id] = createIndexedAccessType(objectType, indexType));
             }
-            var apparentType = getApparentType(objectType);
+            var apparentObjectType = getApparentType(objectType);
             if (indexType.flags & 65536 /* Union */ && !(indexType.flags & 8190 /* Primitive */)) {
                 var propTypes = [];
                 for (var _i = 0, _a = indexType.types; _i < _a.length; _i++) {
                     var t = _a[_i];
-                    var propType = getPropertyTypeForIndexType(apparentType, t, accessNode, /*cacheSymbol*/ false);
+                    var propType = getPropertyTypeForIndexType(apparentObjectType, t, accessNode, /*cacheSymbol*/ false);
                     if (propType === unknownType) {
                         return unknownType;
                     }
@@ -29512,7 +29649,7 @@ var ts;
                 }
                 return getUnionType(propTypes);
             }
-            return getPropertyTypeForIndexType(apparentType, indexType, accessNode, /*cacheSymbol*/ true);
+            return getPropertyTypeForIndexType(apparentObjectType, indexType, accessNode, /*cacheSymbol*/ true);
         }
         function getTypeFromIndexedAccessTypeNode(node) {
             var links = getNodeLinks(node);
@@ -29529,6 +29666,9 @@ var ts;
                 type.aliasSymbol = getAliasSymbolForTypeNode(node);
                 type.aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
                 links.resolvedType = type;
+                // Eagerly resolve the constraint type which forces an error if the constraint type circularly
+                // references itself through one or more type aliases.
+                getConstraintTypeFromMappedType(type);
             }
             return links.resolvedType;
         }
@@ -29705,18 +29845,18 @@ var ts;
                     return nullType;
                 case 129 /* NeverKeyword */:
                     return neverType;
-                case 288 /* JSDocNullKeyword */:
+                case 289 /* JSDocNullKeyword */:
                     return nullType;
-                case 289 /* JSDocUndefinedKeyword */:
+                case 290 /* JSDocUndefinedKeyword */:
                     return undefinedType;
-                case 290 /* JSDocNeverKeyword */:
+                case 291 /* JSDocNeverKeyword */:
                     return neverType;
                 case 167 /* ThisType */:
                 case 98 /* ThisKeyword */:
                     return getTypeFromThisTypeNode(node);
                 case 171 /* LiteralType */:
                     return getTypeFromLiteralTypeNode(node);
-                case 287 /* JSDocLiteralType */:
+                case 288 /* JSDocLiteralType */:
                     return getTypeFromLiteralTypeNode(node.literal);
                 case 157 /* TypeReference */:
                 case 272 /* JSDocTypeReference */:
@@ -29749,7 +29889,7 @@ var ts;
                 case 158 /* FunctionType */:
                 case 159 /* ConstructorType */:
                 case 161 /* TypeLiteral */:
-                case 286 /* JSDocTypeLiteral */:
+                case 287 /* JSDocTypeLiteral */:
                 case 274 /* JSDocFunctionType */:
                     return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                 case 168 /* TypeOperator */:
@@ -29920,6 +30060,33 @@ var ts;
             return result;
         }
         function instantiateMappedType(type, mapper) {
+            // Check if we have an isomorphic mapped type, i.e. a type of the form { [P in keyof T]: X } for some
+            // type parameter T. If so, the mapped type is distributive over a union type and when T is instantiated
+            // to a union type A | B, we produce { [P in keyof A]: X } | { [P in keyof B]: X }. Furthermore, for
+            // isomorphic mapped types we leave primitive types alone. For example, when T is instantiated to a
+            // union type A | undefined, we produce { [P in keyof A]: X } | undefined.
+            var constraintType = getConstraintTypeFromMappedType(type);
+            if (constraintType.flags & 262144 /* Index */) {
+                var typeParameter_1 = constraintType.type;
+                var mappedTypeParameter = mapper(typeParameter_1);
+                if (typeParameter_1 !== mappedTypeParameter) {
+                    return mapType(mappedTypeParameter, function (t) {
+                        if (isMappableType(t)) {
+                            var replacementMapper = createUnaryTypeMapper(typeParameter_1, t);
+                            var combinedMapper = mapper.mappedTypes && mapper.mappedTypes.length === 1 ? replacementMapper : combineTypeMappers(replacementMapper, mapper);
+                            combinedMapper.mappedTypes = mapper.mappedTypes;
+                            return instantiateMappedObjectType(type, combinedMapper);
+                        }
+                        return t;
+                    });
+                }
+            }
+            return instantiateMappedObjectType(type, mapper);
+        }
+        function isMappableType(type) {
+            return type.flags & (16384 /* TypeParameter */ | 32768 /* Object */ | 131072 /* Intersection */ | 524288 /* IndexedAccess */);
+        }
+        function instantiateMappedObjectType(type, mapper) {
             var result = createObjectType(32 /* Mapped */ | 64 /* Instantiated */, type.symbol);
             result.declaration = type.declaration;
             result.mapper = type.mapper ? combineTypeMappers(type.mapper, mapper) : mapper;
@@ -30337,7 +30504,7 @@ var ts;
                 return false;
             if (target.flags & 1 /* Any */ || source.flags & 8192 /* Never */)
                 return true;
-            if (source.flags & 34 /* StringLike */ && target.flags & 2 /* String */)
+            if (source.flags & 262178 /* StringLike */ && target.flags & 2 /* String */)
                 return true;
             if (source.flags & 340 /* NumberLike */ && target.flags & 4 /* Number */)
                 return true;
@@ -30476,12 +30643,6 @@ var ts;
                 }
                 if (isSimpleTypeRelatedTo(source, target, relation, reportErrors ? reportError : undefined))
                     return -1 /* True */;
-                if (source.flags & 262144 /* Index */) {
-                    // A keyof T is related to a union type containing both string and number
-                    if (maybeTypeOfKind(target, 2 /* String */) && maybeTypeOfKind(target, 4 /* Number */)) {
-                        return -1 /* True */;
-                    }
-                }
                 if (getObjectFlags(source) & 128 /* ObjectLiteral */ && source.flags & 1048576 /* FreshLiteral */) {
                     if (hasExcessProperties(source, target, reportErrors)) {
                         if (reportErrors) {
@@ -30541,12 +30702,24 @@ var ts;
                     }
                 }
                 if (target.flags & 16384 /* TypeParameter */) {
-                    // Given a type parameter K with a constraint keyof T, a type S is
-                    // assignable to K if S is assignable to keyof T.
-                    var constraint = getConstraintOfTypeParameter(target);
-                    if (constraint && constraint.flags & 262144 /* Index */) {
-                        if (result = isRelatedTo(source, constraint, reportErrors)) {
-                            return result;
+                    // A source type { [P in keyof T]: X } is related to a target type T if X is related to T[P].
+                    if (getObjectFlags(source) & 32 /* Mapped */ && getConstraintTypeFromMappedType(source) === getIndexType(target)) {
+                        if (!source.declaration.questionToken) {
+                            var templateType = getTemplateTypeFromMappedType(source);
+                            var indexedAccessType = getIndexedAccessType(target, getTypeParameterFromMappedType(source));
+                            if (result = isRelatedTo(templateType, indexedAccessType, reportErrors)) {
+                                return result;
+                            }
+                        }
+                    }
+                    else {
+                        // Given a type parameter K with a constraint keyof T, a type S is
+                        // assignable to K if S is assignable to keyof T.
+                        var constraint = getConstraintOfTypeParameter(target);
+                        if (constraint && constraint.flags & 262144 /* Index */) {
+                            if (result = isRelatedTo(source, constraint, reportErrors)) {
+                                return result;
+                            }
                         }
                     }
                 }
@@ -30566,18 +30739,37 @@ var ts;
                         }
                     }
                 }
+                else if (target.flags & 524288 /* IndexedAccess */) {
+                    // if we have indexed access types with identical index types, see if relationship holds for
+                    // the two object types.
+                    if (source.flags & 524288 /* IndexedAccess */ && source.indexType === target.indexType) {
+                        if (result = isRelatedTo(source.objectType, target.objectType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                }
                 if (source.flags & 16384 /* TypeParameter */) {
-                    var constraint = getConstraintOfTypeParameter(source);
-                    if (!constraint || constraint.flags & 1 /* Any */) {
-                        constraint = emptyObjectType;
-                    }
-                    // The constraint may need to be further instantiated with its 'this' type.
-                    constraint = getTypeWithThisArgument(constraint, source);
-                    // Report constraint errors only if the constraint is not the empty object type
-                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
-                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
-                        errorInfo = saveErrorInfo;
-                        return result;
+                    // A source type T is related to a target type { [P in keyof T]: X } if T[P] is related to X.
+                    if (getObjectFlags(target) & 32 /* Mapped */ && getConstraintTypeFromMappedType(target) === getIndexType(source)) {
+                        var indexedAccessType = getIndexedAccessType(source, getTypeParameterFromMappedType(target));
+                        var templateType = getTemplateTypeFromMappedType(target);
+                        if (result = isRelatedTo(indexedAccessType, templateType, reportErrors)) {
+                            return result;
+                        }
+                    }
+                    else {
+                        var constraint = getConstraintOfTypeParameter(source);
+                        if (!constraint || constraint.flags & 1 /* Any */) {
+                            constraint = emptyObjectType;
+                        }
+                        // The constraint may need to be further instantiated with its 'this' type.
+                        constraint = getTypeWithThisArgument(constraint, source);
+                        // Report constraint errors only if the constraint is not the empty object type
+                        var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+                        if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
+                        }
                     }
                 }
                 else {
@@ -30587,29 +30779,18 @@ var ts;
                             return result;
                         }
                     }
-                    if (isGenericMappedType(target)) {
-                        // A type [P in S]: X is related to a type [P in T]: Y if T is related to S and X is related to Y.
-                        if (isGenericMappedType(source)) {
-                            if ((result = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) &&
-                                (result = isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors))) {
-                                return result;
-                            }
-                        }
-                    }
-                    else {
-                        // Even if relationship doesn't hold for unions, intersections, or generic type references,
-                        // it may hold in a structural comparison.
-                        var apparentSource = getApparentType(source);
-                        // In a check of the form X = A & B, we will have previously checked if A relates to X or B relates
-                        // to X. Failing both of those we want to check if the aggregation of A and B's members structurally
-                        // relates to X. Thus, we include intersection types on the source side here.
-                        if (apparentSource.flags & (32768 /* Object */ | 131072 /* Intersection */) && target.flags & 32768 /* Object */) {
-                            // Report structural errors only if we haven't reported any errors yet
-                            var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190 /* Primitive */);
-                            if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
-                                errorInfo = saveErrorInfo;
-                                return result;
-                            }
+                    // Even if relationship doesn't hold for unions, intersections, or generic type references,
+                    // it may hold in a structural comparison.
+                    var apparentSource = getApparentType(source);
+                    // In a check of the form X = A & B, we will have previously checked if A relates to X or B relates
+                    // to X. Failing both of those we want to check if the aggregation of A and B's members structurally
+                    // relates to X. Thus, we include intersection types on the source side here.
+                    if (apparentSource.flags & (32768 /* Object */ | 131072 /* Intersection */) && target.flags & 32768 /* Object */) {
+                        // Report structural errors only if we haven't reported any errors yet
+                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 8190 /* Primitive */);
+                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
+                            errorInfo = saveErrorInfo;
+                            return result;
                         }
                     }
                 }
@@ -30832,6 +31013,9 @@ var ts;
                 if (expandingFlags === 3) {
                     result = 1 /* Maybe */;
                 }
+                else if (isGenericMappedType(source) || isGenericMappedType(target)) {
+                    result = mappedTypeRelatedTo(source, target, reportErrors);
+                }
                 else {
                     result = propertiesRelatedTo(source, target, reportErrors);
                     if (result) {
@@ -30862,6 +31046,34 @@ var ts;
                 }
                 return result;
             }
+            // A type [P in S]: X is related to a type [P in T]: Y if T is related to S and X is related to Y.
+            function mappedTypeRelatedTo(source, target, reportErrors) {
+                if (isGenericMappedType(target)) {
+                    if (isGenericMappedType(source)) {
+                        var result_2;
+                        if (relation === identityRelation) {
+                            var readonlyMatches = !source.declaration.readonlyToken === !target.declaration.readonlyToken;
+                            var optionalMatches = !source.declaration.questionToken === !target.declaration.questionToken;
+                            if (readonlyMatches && optionalMatches) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getErasedTemplateTypeFromMappedType(source), getErasedTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                        else {
+                            if (relation === comparableRelation || !source.declaration.questionToken || target.declaration.questionToken) {
+                                if (result_2 = isRelatedTo(getConstraintTypeFromMappedType(target), getConstraintTypeFromMappedType(source), reportErrors)) {
+                                    return result_2 & isRelatedTo(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target), reportErrors);
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (relation !== identityRelation && isEmptyObjectType(resolveStructuredTypeMembers(target))) {
+                    return -1 /* True */;
+                }
+                return 0 /* False */;
+            }
             function propertiesRelatedTo(source, target, reportErrors) {
                 if (relation === identityRelation) {
                     return propertiesIdenticalTo(source, target);
@@ -31401,7 +31613,7 @@ var ts;
                 return type;
             }
             var types = [type];
-            if (flags & 34 /* StringLike */)
+            if (flags & 262178 /* StringLike */)
                 types.push(emptyStringType);
             if (flags & 340 /* NumberLike */)
                 types.push(zeroType);
@@ -31791,19 +32003,6 @@ var ts;
                     }
                 }
                 else {
-                    if (getObjectFlags(target) & 32 /* Mapped */) {
-                        var constraintType = getConstraintTypeFromMappedType(target);
-                        if (getObjectFlags(source) & 32 /* Mapped */) {
-                            inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
-                            inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                        if (constraintType.flags & 16384 /* TypeParameter */) {
-                            inferFromTypes(getIndexType(source), constraintType);
-                            inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
-                            return;
-                        }
-                    }
                     source = getApparentType(source);
                     if (source.flags & 32768 /* Object */) {
                         if (isInProcess(source, target)) {
@@ -31824,14 +32023,30 @@ var ts;
                         sourceStack[depth] = source;
                         targetStack[depth] = target;
                         depth++;
-                        inferFromProperties(source, target);
-                        inferFromSignatures(source, target, 0 /* Call */);
-                        inferFromSignatures(source, target, 1 /* Construct */);
-                        inferFromIndexTypes(source, target);
+                        inferFromObjectTypes(source, target);
                         depth--;
                     }
                 }
             }
+            function inferFromObjectTypes(source, target) {
+                if (getObjectFlags(target) & 32 /* Mapped */) {
+                    var constraintType = getConstraintTypeFromMappedType(target);
+                    if (getObjectFlags(source) & 32 /* Mapped */) {
+                        inferFromTypes(getConstraintTypeFromMappedType(source), constraintType);
+                        inferFromTypes(getTemplateTypeFromMappedType(source), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                    if (constraintType.flags & 16384 /* TypeParameter */) {
+                        inferFromTypes(getIndexType(source), constraintType);
+                        inferFromTypes(getUnionType(ts.map(getPropertiesOfType(source), getTypeOfSymbol)), getTemplateTypeFromMappedType(target));
+                        return;
+                    }
+                }
+                inferFromProperties(source, target);
+                inferFromSignatures(source, target, 0 /* Call */);
+                inferFromSignatures(source, target, 1 /* Construct */);
+                inferFromIndexTypes(source, target);
+            }
             function inferFromProperties(source, target) {
                 var properties = getPropertiesOfObjectType(target);
                 for (var _i = 0, properties_4 = properties; _i < properties_4.length; _i++) {
@@ -32200,7 +32415,7 @@ var ts;
         }
         function getTypeWithDefault(type, defaultExpression) {
             if (defaultExpression) {
-                var defaultType = checkExpression(defaultExpression);
+                var defaultType = getTypeOfExpression(defaultExpression);
                 return getUnionType([getTypeWithFacts(type, 131072 /* NEUndefined */), defaultType]);
             }
             return type;
@@ -32223,7 +32438,7 @@ var ts;
         function getAssignedTypeOfBinaryExpression(node) {
             return node.parent.kind === 175 /* ArrayLiteralExpression */ || node.parent.kind === 257 /* PropertyAssignment */ ?
                 getTypeWithDefault(getAssignedType(node), node.right) :
-                checkExpression(node.right);
+                getTypeOfExpression(node.right);
         }
         function getAssignedTypeOfArrayLiteralElement(node, element) {
             return getTypeOfDestructuredArrayElement(getAssignedType(node), ts.indexOf(node.elements, element));
@@ -32274,7 +32489,7 @@ var ts;
             // from its initializer, we'll already have cached the type. Otherwise we compute it now
             // without caching such that transient types are reflected.
             var links = getNodeLinks(node);
-            return links.resolvedType || checkExpression(node);
+            return links.resolvedType || getTypeOfExpression(node);
         }
         function getInitialTypeOfVariableDeclaration(node) {
             if (node.initializer) {
@@ -32327,7 +32542,7 @@ var ts;
         }
         function getTypeOfSwitchClause(clause) {
             if (clause.kind === 253 /* CaseClause */) {
-                var caseType = getRegularTypeOfLiteralType(checkExpression(clause.expression));
+                var caseType = getRegularTypeOfLiteralType(getTypeOfExpression(clause.expression));
                 return isUnitType(caseType) ? caseType : undefined;
             }
             return neverType;
@@ -32419,7 +32634,7 @@ var ts;
         // we defer subtype reduction until the evolving array type is finalized into a manifest
         // array type.
         function addEvolvingArrayElementType(evolvingArrayType, node) {
-            var elementType = getBaseTypeOfLiteralType(checkExpression(node));
+            var elementType = getBaseTypeOfLiteralType(getTypeOfExpression(node));
             return isTypeSubsetOf(elementType, evolvingArrayType.elementType) ? evolvingArrayType : getEvolvingArrayType(getUnionType([evolvingArrayType.elementType, elementType]));
         }
         function createFinalArrayType(elementType) {
@@ -32473,7 +32688,7 @@ var ts;
                 parent.parent.operatorToken.kind === 57 /* EqualsToken */ &&
                 parent.parent.left === parent &&
                 !ts.isAssignmentTarget(parent.parent) &&
-                isTypeAnyOrAllConstituentTypesHaveKind(checkExpression(parent.argumentExpression), 340 /* NumberLike */ | 2048 /* Undefined */);
+                isTypeAnyOrAllConstituentTypesHaveKind(getTypeOfExpression(parent.argumentExpression), 340 /* NumberLike */ | 2048 /* Undefined */);
             return isLengthPushOrUnshift || isElementAssignment;
         }
         function maybeTypePredicateCall(node) {
@@ -32630,7 +32845,7 @@ var ts;
                             }
                         }
                         else {
-                            var indexType = checkExpression(node.left.argumentExpression);
+                            var indexType = getTypeOfExpression(node.left.argumentExpression);
                             if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 340 /* NumberLike */ | 2048 /* Undefined */)) {
                                 evolvedType_1 = addEvolvingArrayElementType(evolvedType_1, node.right);
                             }
@@ -32848,7 +33063,7 @@ var ts;
                 if (operator === 32 /* ExclamationEqualsToken */ || operator === 34 /* ExclamationEqualsEqualsToken */) {
                     assumeTrue = !assumeTrue;
                 }
-                var valueType = checkExpression(value);
+                var valueType = getTypeOfExpression(value);
                 if (valueType.flags & 6144 /* Nullable */) {
                     if (!strictNullChecks) {
                         return type;
@@ -32930,7 +33145,7 @@ var ts;
                     return type;
                 }
                 // Check that right operand is a function type with a prototype property
-                var rightType = checkExpression(expr.right);
+                var rightType = getTypeOfExpression(expr.right);
                 if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
                     return type;
                 }
@@ -32961,18 +33176,18 @@ var ts;
                     }
                 }
                 if (targetType) {
-                    return getNarrowedType(type, targetType, assumeTrue);
+                    return getNarrowedType(type, targetType, assumeTrue, isTypeInstanceOf);
                 }
                 return type;
             }
-            function getNarrowedType(type, candidate, assumeTrue) {
+            function getNarrowedType(type, candidate, assumeTrue, isRelated) {
                 if (!assumeTrue) {
-                    return filterType(type, function (t) { return !isTypeInstanceOf(t, candidate); });
+                    return filterType(type, function (t) { return !isRelated(t, candidate); });
                 }
                 // If the current type is a union type, remove all constituents that couldn't be instances of
                 // the candidate type. If one or more constituents remain, return a union of those.
                 if (type.flags & 65536 /* Union */) {
-                    var assignableType = filterType(type, function (t) { return isTypeInstanceOf(t, candidate); });
+                    var assignableType = filterType(type, function (t) { return isRelated(t, candidate); });
                     if (!(assignableType.flags & 8192 /* Never */)) {
                         return assignableType;
                     }
@@ -33005,7 +33220,7 @@ var ts;
                     var predicateArgument = callExpression.arguments[predicate.parameterIndex];
                     if (predicateArgument) {
                         if (isMatchingReference(reference, predicateArgument)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, predicateArgument)) {
                             return declaredType;
@@ -33018,7 +33233,7 @@ var ts;
                         var accessExpression = invokedExpression;
                         var possibleReference = ts.skipParentheses(accessExpression.expression);
                         if (isMatchingReference(reference, possibleReference)) {
-                            return getNarrowedType(type, predicate.type, assumeTrue);
+                            return getNarrowedType(type, predicate.type, assumeTrue, isTypeSubtypeOf);
                         }
                         if (containsMatchingReference(reference, possibleReference)) {
                             return declaredType;
@@ -33060,7 +33275,7 @@ var ts;
                     location = location.parent;
                 }
                 if (ts.isPartOfExpression(location) && !ts.isAssignmentTarget(location)) {
-                    var type = checkExpression(location);
+                    var type = getTypeOfExpression(location);
                     if (getExportSymbolOfValueSymbolIfExported(getNodeLinks(location).resolvedSymbol) === symbol) {
                         return type;
                     }
@@ -33473,9 +33688,9 @@ var ts;
             return anyType;
         }
         function getTypeForThisExpressionFromJSDoc(node) {
-            var typeTag = ts.getJSDocTypeTag(node);
-            if (typeTag && typeTag.typeExpression && typeTag.typeExpression.type && typeTag.typeExpression.type.kind === 274 /* JSDocFunctionType */) {
-                var jsDocFunctionType = typeTag.typeExpression.type;
+            var jsdocType = ts.getJSDocType(node);
+            if (jsdocType && jsdocType.kind === 274 /* JSDocFunctionType */) {
+                var jsDocFunctionType = jsdocType;
                 if (jsDocFunctionType.parameters.length > 0 && jsDocFunctionType.parameters[0].type.kind === 277 /* JSDocThisType */) {
                     return getTypeFromTypeNode(jsDocFunctionType.parameters[0].type);
                 }
@@ -33745,11 +33960,11 @@ var ts;
                 }
                 if (ts.isBindingPattern(declaration.parent)) {
                     var parentDeclaration = declaration.parent.parent;
-                    var name_20 = declaration.propertyName || declaration.name;
+                    var name_19 = declaration.propertyName || declaration.name;
                     if (ts.isVariableLike(parentDeclaration) &&
                         parentDeclaration.type &&
-                        !ts.isBindingPattern(name_20)) {
-                        var text = ts.getTextOfPropertyName(name_20);
+                        !ts.isBindingPattern(name_19)) {
+                        var text = ts.getTextOfPropertyName(name_19);
                         if (text) {
                             return getTypeOfPropertyOfType(getTypeFromTypeNode(parentDeclaration.type), text);
                         }
@@ -33835,7 +34050,7 @@ var ts;
                 }
                 // In an assignment expression, the right operand is contextually typed by the type of the left operand.
                 if (node === binaryExpression.right) {
-                    return checkExpression(binaryExpression.left);
+                    return getTypeOfExpression(binaryExpression.left);
                 }
             }
             else if (operator === 53 /* BarBarToken */) {
@@ -33843,7 +34058,7 @@ var ts;
                 // expression has no contextual type, the right operand is contextually typed by the type of the left operand.
                 var type = getContextualType(binaryExpression);
                 if (!type && node === binaryExpression.right) {
-                    type = checkExpression(binaryExpression.left);
+                    type = getTypeOfExpression(binaryExpression.left);
                 }
                 return type;
             }
@@ -34261,7 +34476,7 @@ var ts;
                 links.resolvedType = checkExpression(node.expression);
                 // This will allow types number, string, symbol or any. It will also allow enums, the unknown
                 // type, and any union of these types (like string | number).
-                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 /* NumberLike */ | 34 /* StringLike */ | 512 /* ESSymbol */)) {
+                if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 340 /* NumberLike */ | 262178 /* StringLike */ | 512 /* ESSymbol */)) {
                     error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
                 }
                 else {
@@ -34270,10 +34485,10 @@ var ts;
             }
             return links.resolvedType;
         }
-        function getObjectLiteralIndexInfo(node, properties, kind) {
+        function getObjectLiteralIndexInfo(propertyNodes, offset, properties, kind) {
             var propTypes = [];
             for (var i = 0; i < properties.length; i++) {
-                if (kind === 0 /* String */ || isNumericName(node.properties[i].name)) {
+                if (kind === 0 /* String */ || isNumericName(propertyNodes[i + offset].name)) {
                     propTypes.push(getTypeOfSymbol(properties[i]));
                 }
             }
@@ -34295,8 +34510,9 @@ var ts;
             var patternWithComputedProperties = false;
             var hasComputedStringProperty = false;
             var hasComputedNumberProperty = false;
-            for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
-                var memberDecl = _a[_i];
+            var offset = 0;
+            for (var i = 0; i < node.properties.length; i++) {
+                var memberDecl = node.properties[i];
                 var member = memberDecl.symbol;
                 if (memberDecl.kind === 257 /* PropertyAssignment */ ||
                     memberDecl.kind === 258 /* ShorthandPropertyAssignment */ ||
@@ -34361,6 +34577,7 @@ var ts;
                         return unknownType;
                     }
                     spread = getSpreadType(spread, type, /*isFromObjectLiteral*/ false);
+                    offset = i + 1;
                     continue;
                 }
                 else {
@@ -34388,8 +34605,8 @@ var ts;
             // If object literal is contextually typed by the implied type of a binding pattern, augment the result
             // type with those properties for which the binding pattern specifies a default value.
             if (contextualTypeHasPattern) {
-                for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
-                    var prop = _c[_b];
+                for (var _i = 0, _a = getPropertiesOfType(contextualType); _i < _a.length; _i++) {
+                    var prop = _a[_i];
                     if (!propertiesTable[prop.name]) {
                         if (!(prop.flags & 536870912 /* Optional */)) {
                             error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
@@ -34409,8 +34626,8 @@ var ts;
             }
             return createObjectLiteralType();
             function createObjectLiteralType() {
-                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 0 /* String */) : undefined;
-                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node, propertiesArray, 1 /* Number */) : undefined;
+                var stringIndexInfo = hasComputedStringProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 0 /* String */) : undefined;
+                var numberIndexInfo = hasComputedNumberProperty ? getObjectLiteralIndexInfo(node.properties, offset, propertiesArray, 1 /* Number */) : undefined;
                 var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
                 var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576 /* FreshLiteral */;
                 result.flags |= 4194304 /* ContainsObjectLiteral */ | freshObjectLiteralFlag | (typeFlags & 14680064 /* PropagatingFlags */);
@@ -35085,7 +35302,7 @@ var ts;
                         if (node.kind === 212 /* ForInStatement */ &&
                             child === node.statement &&
                             getForInVariableSymbol(node) === symbol &&
-                            hasNumericPropertyNames(checkExpression(node.expression))) {
+                            hasNumericPropertyNames(getTypeOfExpression(node.expression))) {
                             return true;
                         }
                         child = node;
@@ -35191,13 +35408,13 @@ var ts;
             for (var _i = 0, signatures_2 = signatures; _i < signatures_2.length; _i++) {
                 var signature = signatures_2[_i];
                 var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
-                var parent_9 = signature.declaration && signature.declaration.parent;
+                var parent_8 = signature.declaration && signature.declaration.parent;
                 if (!lastSymbol || symbol === lastSymbol) {
-                    if (lastParent && parent_9 === lastParent) {
+                    if (lastParent && parent_8 === lastParent) {
                         index++;
                     }
                     else {
-                        lastParent = parent_9;
+                        lastParent = parent_8;
                         index = cutoffIndex;
                     }
                 }
@@ -35205,7 +35422,7 @@ var ts;
                     // current declaration belongs to a different symbol
                     // set cutoffIndex so re-orderings in the future won't change result set from 0 to cutoffIndex
                     index = cutoffIndex = result.length;
-                    lastParent = parent_9;
+                    lastParent = parent_8;
                 }
                 lastSymbol = symbol;
                 // specialized signatures always need to be placed before non-specialized signatures regardless
@@ -36537,7 +36754,7 @@ var ts;
             if (!node.possiblyExhaustive) {
                 return false;
             }
-            var type = checkExpression(node.expression);
+            var type = getTypeOfExpression(node.expression);
             if (!isLiteralType(type)) {
                 return false;
             }
@@ -36944,10 +37161,10 @@ var ts;
             // The in operator requires the left operand to be of type Any, the String primitive type, or the Number primitive type,
             // and the right operand to be of type Any, an object type, or a type parameter type.
             // The result is always of the Boolean primitive type.
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 /* StringLike */ | 340 /* NumberLike */ | 512 /* ESSymbol */)) {
+            if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, 340 /* NumberLike */ | 512 /* ESSymbol */))) {
                 error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
             }
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */ | 524288 /* IndexedAccess */)) {
                 error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             return booleanType;
@@ -36956,20 +37173,21 @@ var ts;
             var properties = node.properties;
             for (var _i = 0, properties_5 = properties; _i < properties_5.length; _i++) {
                 var p = properties_5[_i];
-                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p);
+                checkObjectLiteralDestructuringPropertyAssignment(sourceType, p, properties);
             }
             return sourceType;
         }
-        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property) {
+        /** Note: If property cannot be a SpreadAssignment, then allProperties does not need to be provided */
+        function checkObjectLiteralDestructuringPropertyAssignment(objectLiteralType, property, allProperties) {
             if (property.kind === 257 /* PropertyAssignment */ || property.kind === 258 /* ShorthandPropertyAssignment */) {
-                var name_21 = property.name;
-                if (name_21.kind === 142 /* ComputedPropertyName */) {
-                    checkComputedPropertyName(name_21);
+                var name_20 = property.name;
+                if (name_20.kind === 142 /* ComputedPropertyName */) {
+                    checkComputedPropertyName(name_20);
                 }
-                if (isComputedNonLiteralName(name_21)) {
+                if (isComputedNonLiteralName(name_20)) {
                     return undefined;
                 }
-                var text = ts.getTextOfPropertyName(name_21);
+                var text = ts.getTextOfPropertyName(name_20);
                 var type = isTypeAny(objectLiteralType)
                     ? objectLiteralType
                     : getTypeOfPropertyOfType(objectLiteralType, text) ||
@@ -36985,13 +37203,18 @@ var ts;
                     }
                 }
                 else {
-                    error(name_21, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_21));
+                    error(name_20, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(objectLiteralType), ts.declarationNameToString(name_20));
                 }
             }
             else if (property.kind === 259 /* SpreadAssignment */) {
-                if (property.expression.kind !== 70 /* Identifier */) {
-                    error(property.expression, ts.Diagnostics.An_object_rest_element_must_be_an_identifier);
+                var nonRestNames = [];
+                if (allProperties) {
+                    for (var i = 0; i < allProperties.length - 1; i++) {
+                        nonRestNames.push(allProperties[i].name);
+                    }
                 }
+                var type = getRestType(objectLiteralType, nonRestNames, objectLiteralType.symbol);
+                return checkDestructuringAssignment(property.expression, type);
             }
             else {
                 error(property, ts.Diagnostics.Property_assignment_expected);
@@ -37083,7 +37306,10 @@ var ts;
         }
         function checkReferenceAssignment(target, sourceType, contextualMapper) {
             var targetType = checkExpression(target, contextualMapper);
-            if (checkReferenceExpression(target, ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access)) {
+            var error = target.parent.kind === 259 /* SpreadAssignment */ ?
+                ts.Diagnostics.The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access :
+                ts.Diagnostics.The_left_hand_side_of_an_assignment_expression_must_be_a_variable_or_a_property_access;
+            if (checkReferenceExpression(target, error)) {
                 checkTypeAssignableTo(sourceType, targetType, target, /*headMessage*/ undefined);
             }
             return sourceType;
@@ -37246,7 +37472,7 @@ var ts;
                         resultType = numberType;
                     }
                     else {
-                        if (isTypeOfKind(leftType, 34 /* StringLike */) || isTypeOfKind(rightType, 34 /* StringLike */)) {
+                        if (isTypeOfKind(leftType, 262178 /* StringLike */) || isTypeOfKind(rightType, 262178 /* StringLike */)) {
                             // If one or both operands are of the String primitive type, the result is of the String primitive type.
                             resultType = stringType;
                         }
@@ -37273,6 +37499,8 @@ var ts;
                 case 29 /* LessThanEqualsToken */:
                 case 30 /* GreaterThanEqualsToken */:
                     if (checkForDisallowedESSymbolOperand(operator)) {
+                        leftType = getBaseTypeOfLiteralType(leftType);
+                        rightType = getBaseTypeOfLiteralType(rightType);
                         if (!isTypeComparableTo(leftType, rightType) && !isTypeComparableTo(rightType, leftType)) {
                             reportOperatorError();
                         }
@@ -37469,7 +37697,7 @@ var ts;
         function checkDeclarationInitializer(declaration) {
             var type = checkExpressionCached(declaration.initializer);
             return ts.getCombinedNodeFlags(declaration) & 2 /* Const */ ||
-                ts.getCombinedModifierFlags(declaration) & 64 /* Readonly */ ||
+                ts.getCombinedModifierFlags(declaration) & 64 /* Readonly */ && !ts.isParameterPropertyDeclaration(declaration) ||
                 isTypeAssertion(declaration.initializer) ? type : getWidenedLiteralType(type);
         }
         function isLiteralContextualType(contextualType) {
@@ -37484,7 +37712,7 @@ var ts;
                     }
                     contextualType = apparentType;
                 }
-                return maybeTypeOfKind(contextualType, 480 /* Literal */);
+                return maybeTypeOfKind(contextualType, (480 /* Literal */ | 262144 /* Index */));
             }
             return false;
         }
@@ -37528,6 +37756,23 @@ var ts;
             }
             return type;
         }
+        // Returns the type of an expression. Unlike checkExpression, this function is simply concerned
+        // with computing the type and may not fully check all contained sub-expressions for errors.
+        function getTypeOfExpression(node) {
+            // Optimize for the common case of a call to a function with a single non-generic call
+            // signature where we can just fetch the return type without checking the arguments.
+            if (node.kind === 179 /* CallExpression */ && node.expression.kind !== 96 /* SuperKeyword */) {
+                var funcType = checkNonNullExpression(node.expression);
+                var signature = getSingleCallSignature(funcType);
+                if (signature && !signature.typeParameters) {
+                    return getReturnTypeOfSignature(signature);
+                }
+            }
+            // Otherwise simply call checkExpression. Ideally, the entire family of checkXXX functions
+            // should have a parameter that indicates whether full error checking is required such that
+            // we can perform the optimizations locally.
+            return checkExpression(node);
+        }
         // Checks an expression and returns its type. The contextualMapper parameter serves two purposes: When
         // contextualMapper is not undefined and not equal to the identityMapper function object it indicates that the
         // expression is being inferentially typed (section 4.15.2 in spec) and provides the type mapper to use in
@@ -37730,9 +37975,9 @@ var ts;
                 else if (parameterName) {
                     var hasReportedError = false;
                     for (var _i = 0, _a = parent.parameters; _i < _a.length; _i++) {
-                        var name_22 = _a[_i].name;
-                        if (ts.isBindingPattern(name_22) &&
-                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, parameterName, typePredicate.parameterName)) {
+                        var name_21 = _a[_i].name;
+                        if (ts.isBindingPattern(name_21) &&
+                            checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_21, parameterName, typePredicate.parameterName)) {
                             hasReportedError = true;
                             break;
                         }
@@ -37752,9 +37997,9 @@ var ts;
                 case 158 /* FunctionType */:
                 case 149 /* MethodDeclaration */:
                 case 148 /* MethodSignature */:
-                    var parent_10 = node.parent;
-                    if (node === parent_10.type) {
-                        return parent_10;
+                    var parent_9 = node.parent;
+                    if (node === parent_9.type) {
+                        return parent_9;
                     }
             }
         }
@@ -37764,15 +38009,15 @@ var ts;
                 if (ts.isOmittedExpression(element)) {
                     continue;
                 }
-                var name_23 = element.name;
-                if (name_23.kind === 70 /* Identifier */ &&
-                    name_23.text === predicateVariableName) {
+                var name_22 = element.name;
+                if (name_22.kind === 70 /* Identifier */ &&
+                    name_22.text === predicateVariableName) {
                     error(predicateVariableNode, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, predicateVariableName);
                     return true;
                 }
-                else if (name_23.kind === 173 /* ArrayBindingPattern */ ||
-                    name_23.kind === 172 /* ObjectBindingPattern */) {
-                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_23, predicateVariableNode, predicateVariableName)) {
+                else if (name_22.kind === 173 /* ArrayBindingPattern */ ||
+                    name_22.kind === 172 /* ObjectBindingPattern */) {
+                    if (checkIfTypePredicateVariableIsDeclaredInBindingPattern(name_22, predicateVariableNode, predicateVariableName)) {
                         return true;
                     }
                 }
@@ -38040,8 +38285,8 @@ var ts;
                     if (superCallShouldBeFirst) {
                         var statements = node.body.statements;
                         var superCallStatement = void 0;
-                        for (var _i = 0, statements_2 = statements; _i < statements_2.length; _i++) {
-                            var statement = statements_2[_i];
+                        for (var _i = 0, statements_3 = statements; _i < statements_3.length; _i++) {
+                            var statement = statements_3[_i];
                             if (statement.kind === 207 /* ExpressionStatement */ && ts.isSuperCall(statement.expression)) {
                                 superCallStatement = statement;
                                 break;
@@ -38194,7 +38439,7 @@ var ts;
             var type = getTypeFromMappedTypeNode(node);
             var constraintType = getConstraintTypeFromMappedType(type);
             var keyType = constraintType.flags & 16384 /* TypeParameter */ ? getApparentTypeOfTypeParameter(constraintType) : constraintType;
-            checkTypeAssignableTo(keyType, stringOrNumberType, node.typeParameter.constraint);
+            checkTypeAssignableTo(keyType, stringType, node.typeParameter.constraint);
         }
         function isPrivateWithinAmbient(node) {
             return (ts.getModifierFlags(node) & 8 /* Private */) && ts.isInAmbientContext(node);
@@ -38475,10 +38720,10 @@ var ts;
                     case 229 /* EnumDeclaration */:
                         return 2097152 /* ExportType */ | 1048576 /* ExportValue */;
                     case 234 /* ImportEqualsDeclaration */:
-                        var result_2 = 0;
+                        var result_3 = 0;
                         var target = resolveAlias(getSymbolOfNode(d));
-                        ts.forEach(target.declarations, function (d) { result_2 |= getDeclarationSpaces(d); });
-                        return result_2;
+                        ts.forEach(target.declarations, function (d) { result_3 |= getDeclarationSpaces(d); });
+                        return result_3;
                     default:
                         return 1048576 /* ExportValue */;
                 }
@@ -39211,8 +39456,8 @@ var ts;
                         // otherwise if variable has an initializer - show error that initialization will fail
                         // since LHS will be block scoped name instead of function scoped
                         if (!namesShareScope) {
-                            var name_24 = symbolToString(localDeclarationSymbol);
-                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_24, name_24);
+                            var name_23 = symbolToString(localDeclarationSymbol);
+                            error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_23, name_23);
                         }
                     }
                 }
@@ -39303,13 +39548,13 @@ var ts;
                     checkComputedPropertyName(node.propertyName);
                 }
                 // check private/protected variable access
-                var parent_11 = node.parent.parent;
-                var parentType = getTypeForBindingElementParent(parent_11);
-                var name_25 = node.propertyName || node.name;
-                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_25));
+                var parent_10 = node.parent.parent;
+                var parentType = getTypeForBindingElementParent(parent_10);
+                var name_24 = node.propertyName || node.name;
+                var property = getPropertyOfType(parentType, ts.getTextOfPropertyName(name_24));
                 markPropertyAsReferenced(property);
-                if (parent_11.initializer && property && getParentOfSymbol(property)) {
-                    checkClassPropertyAccess(parent_11, parent_11.initializer, parentType, property);
+                if (parent_10.initializer && property && getParentOfSymbol(property)) {
+                    checkClassPropertyAccess(parent_10, parent_10.initializer, parentType, property);
                 }
             }
             // For a binding pattern, check contained binding elements
@@ -39501,6 +39746,7 @@ var ts;
         function checkForInStatement(node) {
             // Grammar checking
             checkGrammarForInOrForOfStatement(node);
+            var rightType = checkNonNullExpression(node.expression);
             // TypeScript 1.0 spec  (April 2014): 5.4
             // In a 'for-in' statement of the form
             // for (let VarDecl in Expr) Statement
@@ -39523,7 +39769,7 @@ var ts;
                 if (varExpr.kind === 175 /* ArrayLiteralExpression */ || varExpr.kind === 176 /* ObjectLiteralExpression */) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
                 }
-                else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 34 /* StringLike */)) {
+                else if (!isTypeAssignableTo(getIndexTypeOrString(rightType), leftType)) {
                     error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
                 }
                 else {
@@ -39531,10 +39777,9 @@ var ts;
                     checkReferenceExpression(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_a_variable_or_a_property_access);
                 }
             }
-            var rightType = checkNonNullExpression(node.expression);
             // unknownType is returned i.e. if node.expression is identifier whose name cannot be resolved
             // in this case error about missing name is already reported - do not report extra one
-            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */)) {
+            if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 32768 /* Object */ | 16384 /* TypeParameter */ | 524288 /* IndexedAccess */)) {
                 error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
             }
             checkSourceElement(node.statement);
@@ -39724,12 +39969,12 @@ var ts;
                 // After we remove all types that are StringLike, we will know if there was a string constituent
                 // based on whether the result of filter is a new array.
                 var arrayTypes = arrayOrStringType.types;
-                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 34 /* StringLike */); });
+                var filteredTypes = ts.filter(arrayTypes, function (t) { return !(t.flags & 262178 /* StringLike */); });
                 if (filteredTypes !== arrayTypes) {
                     arrayType = getUnionType(filteredTypes, /*subtypeReduction*/ true);
                 }
             }
-            else if (arrayOrStringType.flags & 34 /* StringLike */) {
+            else if (arrayOrStringType.flags & 262178 /* StringLike */) {
                 arrayType = neverType;
             }
             var hasStringConstituent = arrayOrStringType !== arrayType;
@@ -39761,7 +40006,7 @@ var ts;
             var arrayElementType = getIndexTypeOfType(arrayType, 1 /* Number */) || unknownType;
             if (hasStringConstituent) {
                 // This is just an optimization for the case where arrayOrStringType is string | string[]
-                if (arrayElementType.flags & 34 /* StringLike */) {
+                if (arrayElementType.flags & 262178 /* StringLike */) {
                     return stringType;
                 }
                 return getUnionType([arrayElementType, stringType], /*subtypeReduction*/ true);
@@ -40532,7 +40777,7 @@ var ts;
                                         return undefined;
                                     }
                                 }
-                                enumType_1 = checkExpression(expression);
+                                enumType_1 = getTypeOfExpression(expression);
                                 // allow references to constant members of other enums
                                 if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384 /* Enum */))) {
                                     return undefined;
@@ -40753,9 +40998,9 @@ var ts;
                     break;
                 case 174 /* BindingElement */:
                 case 223 /* VariableDeclaration */:
-                    var name_26 = node.name;
-                    if (ts.isBindingPattern(name_26)) {
-                        for (var _b = 0, _c = name_26.elements; _b < _c.length; _b++) {
+                    var name_25 = node.name;
+                    if (ts.isBindingPattern(name_25)) {
+                        for (var _b = 0, _c = name_25.elements; _b < _c.length; _b++) {
                             var el = _c[_b];
                             // mark individual names in binding pattern
                             checkModuleAugmentationElement(el, isGlobalAugmentation);
@@ -41587,7 +41832,7 @@ var ts;
                     }
                 // fallthrough
                 case 96 /* SuperKeyword */:
-                    var type = ts.isPartOfExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+                    var type = ts.isPartOfExpression(node) ? getTypeOfExpression(node) : getTypeFromTypeNode(node);
                     return type.symbol;
                 case 167 /* ThisType */:
                     return getTypeFromTypeNode(node).symbol;
@@ -41613,7 +41858,7 @@ var ts;
                 case 8 /* NumericLiteral */:
                     // index access
                     if (node.parent.kind === 178 /* ElementAccessExpression */ && node.parent.argumentExpression === node) {
-                        var objectType = checkExpression(node.parent.expression);
+                        var objectType = getTypeOfExpression(node.parent.expression);
                         if (objectType === unknownType)
                             return undefined;
                         var apparentType = getApparentType(objectType);
@@ -41649,7 +41894,7 @@ var ts;
                 return getTypeFromTypeNode(node);
             }
             if (ts.isPartOfExpression(node)) {
-                return getTypeOfExpression(node);
+                return getRegularTypeOfExpression(node);
             }
             if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
                 // A SyntaxKind.ExpressionWithTypeArguments is considered a type node, except when it occurs in the
@@ -41702,7 +41947,7 @@ var ts;
             // If this is from "for" initializer
             //     for ({a } = elems[0];.....) { }
             if (expr.parent.kind === 192 /* BinaryExpression */) {
-                var iteratedType = checkExpression(expr.parent.right);
+                var iteratedType = getTypeOfExpression(expr.parent.right);
                 return checkDestructuringAssignment(expr, iteratedType || unknownType);
             }
             // If this is from nested object binding pattern
@@ -41729,11 +41974,11 @@ var ts;
             var typeOfObjectLiteral = getTypeOfArrayLiteralOrObjectLiteralDestructuringAssignment(location.parent.parent);
             return typeOfObjectLiteral && getPropertyOfType(typeOfObjectLiteral, location.text);
         }
-        function getTypeOfExpression(expr) {
+        function getRegularTypeOfExpression(expr) {
             if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
                 expr = expr.parent;
             }
-            return getRegularTypeOfLiteralType(checkExpression(expr));
+            return getRegularTypeOfLiteralType(getTypeOfExpression(expr));
         }
         /**
           * Gets either the static or instance type of a class element, based on
@@ -41762,9 +42007,9 @@ var ts;
         function getRootSymbols(symbol) {
             if (symbol.flags & 268435456 /* SyntheticProperty */) {
                 var symbols_3 = [];
-                var name_27 = symbol.name;
+                var name_26 = symbol.name;
                 ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
-                    var symbol = getPropertyOfType(t, name_27);
+                    var symbol = getPropertyOfType(t, name_26);
                     if (symbol) {
                         symbols_3.push(symbol);
                     }
@@ -41823,7 +42068,7 @@ var ts;
         }
         function isNameOfModuleOrEnumDeclaration(node) {
             var parent = node.parent;
-            return ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
+            return parent && ts.isModuleOrEnumDeclaration(parent) && node === parent.name;
         }
         // When resolved as an expression identifier, if the given node references an exported entity, return the declaration
         // node of the exported entity's container. Otherwise, return undefined.
@@ -42084,7 +42329,7 @@ var ts;
             else if (isTypeOfKind(type, 340 /* NumberLike */)) {
                 return ts.TypeReferenceSerializationKind.NumberLikeType;
             }
-            else if (isTypeOfKind(type, 34 /* StringLike */)) {
+            else if (isTypeOfKind(type, 262178 /* StringLike */)) {
                 return ts.TypeReferenceSerializationKind.StringLikeType;
             }
             else if (isTupleType(type)) {
@@ -42116,7 +42361,7 @@ var ts;
             getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
         }
         function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
-            var type = getWidenedType(getTypeOfExpression(expr));
+            var type = getWidenedType(getRegularTypeOfExpression(expr));
             getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
         }
         function writeBaseConstructorTypeOfClass(node, enclosingDeclaration, flags, writer) {
@@ -42137,9 +42382,9 @@ var ts;
             if (startInDeclarationContainer) {
                 // When resolving the name of a declaration as a value, we need to start resolution
                 // at a point outside of the declaration.
-                var parent_12 = reference.parent;
-                if (ts.isDeclaration(parent_12) && reference === parent_12.name) {
-                    location = getDeclarationContainer(parent_12);
+                var parent_11 = reference.parent;
+                if (ts.isDeclaration(parent_11) && reference === parent_11.name) {
+                    location = getDeclarationContainer(parent_11);
                 }
             }
             return resolveName(location, reference.text, 107455 /* Value */ | 1048576 /* ExportValue */ | 8388608 /* Alias */, /*nodeNotFoundMessage*/ undefined, /*nameArg*/ undefined);
@@ -42268,9 +42513,9 @@ var ts;
                 // external modules cannot define or contribute to type declaration files
                 var current = symbol;
                 while (true) {
-                    var parent_13 = getParentOfSymbol(current);
-                    if (parent_13) {
-                        current = parent_13;
+                    var parent_12 = getParentOfSymbol(current);
+                    if (parent_12) {
+                        current = parent_12;
                     }
                     else {
                         break;
@@ -42973,10 +43218,10 @@ var ts;
                 if (prop.kind === 259 /* SpreadAssignment */) {
                     continue;
                 }
-                var name_28 = prop.name;
-                if (name_28.kind === 142 /* ComputedPropertyName */) {
+                var name_27 = prop.name;
+                if (name_27.kind === 142 /* ComputedPropertyName */) {
                     // If the name is not a ComputedPropertyName, the grammar checking will skip it
-                    checkGrammarComputedPropertyName(name_28);
+                    checkGrammarComputedPropertyName(name_27);
                 }
                 if (prop.kind === 258 /* ShorthandPropertyAssignment */ && !inDestructuring && prop.objectAssignmentInitializer) {
                     // having objectAssignmentInitializer is only valid in ObjectAssignmentPattern
@@ -43004,8 +43249,8 @@ var ts;
                 if (prop.kind === 257 /* PropertyAssignment */ || prop.kind === 258 /* ShorthandPropertyAssignment */) {
                     // Grammar checking for computedPropertyName and shorthandPropertyAssignment
                     checkGrammarForInvalidQuestionMark(prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
-                    if (name_28.kind === 8 /* NumericLiteral */) {
-                        checkGrammarNumericLiteral(name_28);
+                    if (name_27.kind === 8 /* NumericLiteral */) {
+                        checkGrammarNumericLiteral(name_27);
                     }
                     currentKind = Property;
                 }
@@ -43021,7 +43266,7 @@ var ts;
                 else {
                     ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
                 }
-                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_28);
+                var effectiveName = ts.getPropertyNameForPropertyNameNode(name_27);
                 if (effectiveName === undefined) {
                     continue;
                 }
@@ -43031,18 +43276,18 @@ var ts;
                 else {
                     var existingKind = seen[effectiveName];
                     if (currentKind === Property && existingKind === Property) {
-                        grammarErrorOnNode(name_28, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_28));
+                        grammarErrorOnNode(name_27, ts.Diagnostics.Duplicate_identifier_0, ts.getTextOfNode(name_27));
                     }
                     else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
                         if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
                             seen[effectiveName] = currentKind | existingKind;
                         }
                         else {
-                            return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+                            return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
                         }
                     }
                     else {
-                        return grammarErrorOnNode(name_28, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+                        return grammarErrorOnNode(name_27, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
                     }
                 }
             }
@@ -43055,12 +43300,12 @@ var ts;
                     continue;
                 }
                 var jsxAttr = attr;
-                var name_29 = jsxAttr.name;
-                if (!seen[name_29.text]) {
-                    seen[name_29.text] = true;
+                var name_28 = jsxAttr.name;
+                if (!seen[name_28.text]) {
+                    seen[name_28.text] = true;
                 }
                 else {
-                    return grammarErrorOnNode(name_29, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+                    return grammarErrorOnNode(name_28, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
                 }
                 var initializer = jsxAttr.initializer;
                 if (initializer && initializer.kind === 252 /* JsxExpression */ && !initializer.expression) {
@@ -43577,19 +43822,24 @@ var ts;
     function reduceNode(node, f, initial) {
         return node ? f(initial, node) : initial;
     }
+    function reduceNodeArray(nodes, f, initial) {
+        return nodes ? f(initial, nodes) : initial;
+    }
     /**
      * Similar to `reduceLeft`, performs a reduction against each child of a node.
      * NOTE: Unlike `forEachChild`, this does *not* visit every node. Only nodes added to the
      *       `nodeEdgeTraversalMap` above will be visited.
      *
      * @param node The node containing the children to reduce.
-     * @param f The callback function
      * @param initial The initial value to supply to the reduction.
+     * @param f The callback function
      */
-    function reduceEachChild(node, f, initial) {
+    function reduceEachChild(node, initial, cbNode, cbNodeArray) {
         if (node === undefined) {
             return initial;
         }
+        var reduceNodes = cbNodeArray ? reduceNodeArray : ts.reduceLeft;
+        var cbNodes = cbNodeArray || cbNode;
         var kind = node.kind;
         // No need to visit nodes with no children.
         if ((kind > 0 /* FirstToken */ && kind <= 140 /* LastToken */)) {
@@ -43606,114 +43856,114 @@ var ts;
             case 206 /* EmptyStatement */:
             case 198 /* OmittedExpression */:
             case 222 /* DebuggerStatement */:
-            case 292 /* NotEmittedStatement */:
+            case 293 /* NotEmittedStatement */:
                 // No need to visit nodes with no children.
                 break;
             // Names
             case 142 /* ComputedPropertyName */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Signature elements
             case 144 /* Parameter */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 145 /* Decorator */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Type member
             case 147 /* PropertyDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 149 /* MethodDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 150 /* Constructor */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 151 /* GetAccessor */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 152 /* SetAccessor */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             // Binding patterns
             case 172 /* ObjectBindingPattern */:
             case 173 /* ArrayBindingPattern */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 174 /* BindingElement */:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             // Expression
             case 175 /* ArrayLiteralExpression */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 176 /* ObjectLiteralExpression */:
-                result = ts.reduceLeft(node.properties, f, result);
+                result = reduceNodes(node.properties, cbNodes, result);
                 break;
             case 177 /* PropertyAccessExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 178 /* ElementAccessExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.argumentExpression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.argumentExpression, cbNode, result);
                 break;
             case 179 /* CallExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 180 /* NewExpression */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
-                result = ts.reduceLeft(node.arguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
+                result = reduceNodes(node.arguments, cbNodes, result);
                 break;
             case 181 /* TaggedTemplateExpression */:
-                result = reduceNode(node.tag, f, result);
-                result = reduceNode(node.template, f, result);
+                result = reduceNode(node.tag, cbNode, result);
+                result = reduceNode(node.template, cbNode, result);
                 break;
             case 184 /* FunctionExpression */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 185 /* ArrowFunction */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 183 /* ParenthesizedExpression */:
             case 186 /* DeleteExpression */:
@@ -43723,212 +43973,212 @@ var ts;
             case 195 /* YieldExpression */:
             case 196 /* SpreadElement */:
             case 201 /* NonNullExpression */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 190 /* PrefixUnaryExpression */:
             case 191 /* PostfixUnaryExpression */:
-                result = reduceNode(node.operand, f, result);
+                result = reduceNode(node.operand, cbNode, result);
                 break;
             case 192 /* BinaryExpression */:
-                result = reduceNode(node.left, f, result);
-                result = reduceNode(node.right, f, result);
+                result = reduceNode(node.left, cbNode, result);
+                result = reduceNode(node.right, cbNode, result);
                 break;
             case 193 /* ConditionalExpression */:
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.whenTrue, f, result);
-                result = reduceNode(node.whenFalse, f, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.whenTrue, cbNode, result);
+                result = reduceNode(node.whenFalse, cbNode, result);
                 break;
             case 194 /* TemplateExpression */:
-                result = reduceNode(node.head, f, result);
-                result = ts.reduceLeft(node.templateSpans, f, result);
+                result = reduceNode(node.head, cbNode, result);
+                result = reduceNodes(node.templateSpans, cbNodes, result);
                 break;
             case 197 /* ClassExpression */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 199 /* ExpressionWithTypeArguments */:
-                result = reduceNode(node.expression, f, result);
-                result = ts.reduceLeft(node.typeArguments, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNodes(node.typeArguments, cbNodes, result);
                 break;
             // Misc
             case 202 /* TemplateSpan */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.literal, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.literal, cbNode, result);
                 break;
             // Element
             case 204 /* Block */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 205 /* VariableStatement */:
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.declarationList, f, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.declarationList, cbNode, result);
                 break;
             case 207 /* ExpressionStatement */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 208 /* IfStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.thenStatement, f, result);
-                result = reduceNode(node.elseStatement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.thenStatement, cbNode, result);
+                result = reduceNode(node.elseStatement, cbNode, result);
                 break;
             case 209 /* DoStatement */:
-                result = reduceNode(node.statement, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.statement, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 210 /* WhileStatement */:
             case 217 /* WithStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 211 /* ForStatement */:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.condition, f, result);
-                result = reduceNode(node.incrementor, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.condition, cbNode, result);
+                result = reduceNode(node.incrementor, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 212 /* ForInStatement */:
             case 213 /* ForOfStatement */:
-                result = reduceNode(node.initializer, f, result);
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.initializer, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 216 /* ReturnStatement */:
             case 220 /* ThrowStatement */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 218 /* SwitchStatement */:
-                result = reduceNode(node.expression, f, result);
-                result = reduceNode(node.caseBlock, f, result);
+                result = reduceNode(node.expression, cbNode, result);
+                result = reduceNode(node.caseBlock, cbNode, result);
                 break;
             case 219 /* LabeledStatement */:
-                result = reduceNode(node.label, f, result);
-                result = reduceNode(node.statement, f, result);
+                result = reduceNode(node.label, cbNode, result);
+                result = reduceNode(node.statement, cbNode, result);
                 break;
             case 221 /* TryStatement */:
-                result = reduceNode(node.tryBlock, f, result);
-                result = reduceNode(node.catchClause, f, result);
-                result = reduceNode(node.finallyBlock, f, result);
+                result = reduceNode(node.tryBlock, cbNode, result);
+                result = reduceNode(node.catchClause, cbNode, result);
+                result = reduceNode(node.finallyBlock, cbNode, result);
                 break;
             case 223 /* VariableDeclaration */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 224 /* VariableDeclarationList */:
-                result = ts.reduceLeft(node.declarations, f, result);
+                result = reduceNodes(node.declarations, cbNodes, result);
                 break;
             case 225 /* FunctionDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.parameters, f, result);
-                result = reduceNode(node.type, f, result);
-                result = reduceNode(node.body, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.parameters, cbNodes, result);
+                result = reduceNode(node.type, cbNode, result);
+                result = reduceNode(node.body, cbNode, result);
                 break;
             case 226 /* ClassDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.name, f, result);
-                result = ts.reduceLeft(node.typeParameters, f, result);
-                result = ts.reduceLeft(node.heritageClauses, f, result);
-                result = ts.reduceLeft(node.members, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNodes(node.typeParameters, cbNodes, result);
+                result = reduceNodes(node.heritageClauses, cbNodes, result);
+                result = reduceNodes(node.members, cbNodes, result);
                 break;
             case 232 /* CaseBlock */:
-                result = ts.reduceLeft(node.clauses, f, result);
+                result = reduceNodes(node.clauses, cbNodes, result);
                 break;
             case 235 /* ImportDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.importClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = reduceNodes(node.decorators, cbNodes, result);
+                result = reduceNodes(node.modifiers, cbNodes, result);
+                result = reduceNode(node.importClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             case 236 /* ImportClause */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.namedBindings, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.namedBindings, cbNode, result);
                 break;
             case 237 /* NamespaceImport */:
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 238 /* NamedImports */:
             case 242 /* NamedExports */:
-                result = ts.reduceLeft(node.elements, f, result);
+                result = reduceNodes(node.elements, cbNodes, result);
                 break;
             case 239 /* ImportSpecifier */:
             case 243 /* ExportSpecifier */:
-                result = reduceNode(node.propertyName, f, result);
-                result = reduceNode(node.name, f, result);
+                result = reduceNode(node.propertyName, cbNode, result);
+                result = reduceNode(node.name, cbNode, result);
                 break;
             case 240 /* ExportAssignment */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.expression, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 241 /* ExportDeclaration */:
-                result = ts.reduceLeft(node.decorators, f, result);
-                result = ts.reduceLeft(node.modifiers, f, result);
-                result = reduceNode(node.exportClause, f, result);
-                result = reduceNode(node.moduleSpecifier, f, result);
+                result = ts.reduceLeft(node.decorators, cbNode, result);
+                result = ts.reduceLeft(node.modifiers, cbNode, result);
+                result = reduceNode(node.exportClause, cbNode, result);
+                result = reduceNode(node.moduleSpecifier, cbNode, result);
                 break;
             // JSX
             case 246 /* JsxElement */:
-                result = reduceNode(node.openingElement, f, result);
-                result = ts.reduceLeft(node.children, f, result);
-                result = reduceNode(node.closingElement, f, result);
+                result = reduceNode(node.openingElement, cbNode, result);
+                result = ts.reduceLeft(node.children, cbNode, result);
+                result = reduceNode(node.closingElement, cbNode, result);
                 break;
             case 247 /* JsxSelfClosingElement */:
             case 248 /* JsxOpeningElement */:
-                result = reduceNode(node.tagName, f, result);
-                result = ts.reduceLeft(node.attributes, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
+                result = reduceNodes(node.attributes, cbNodes, result);
                 break;
             case 249 /* JsxClosingElement */:
-                result = reduceNode(node.tagName, f, result);
+                result = reduceNode(node.tagName, cbNode, result);
                 break;
             case 250 /* JsxAttribute */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 251 /* JsxSpreadAttribute */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             case 252 /* JsxExpression */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Clauses
             case 253 /* CaseClause */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
             // fall-through
             case 254 /* DefaultClause */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
             case 255 /* HeritageClause */:
-                result = ts.reduceLeft(node.types, f, result);
+                result = reduceNodes(node.types, cbNodes, result);
                 break;
             case 256 /* CatchClause */:
-                result = reduceNode(node.variableDeclaration, f, result);
-                result = reduceNode(node.block, f, result);
+                result = reduceNode(node.variableDeclaration, cbNode, result);
+                result = reduceNode(node.block, cbNode, result);
                 break;
             // Property assignments
             case 257 /* PropertyAssignment */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.initializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.initializer, cbNode, result);
                 break;
             case 258 /* ShorthandPropertyAssignment */:
-                result = reduceNode(node.name, f, result);
-                result = reduceNode(node.objectAssignmentInitializer, f, result);
+                result = reduceNode(node.name, cbNode, result);
+                result = reduceNode(node.objectAssignmentInitializer, cbNode, result);
                 break;
             case 259 /* SpreadAssignment */:
-                result = reduceNode(node.expression, f, result);
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             // Top-level nodes
             case 261 /* SourceFile */:
-                result = ts.reduceLeft(node.statements, f, result);
+                result = reduceNodes(node.statements, cbNodes, result);
                 break;
-            case 293 /* PartiallyEmittedExpression */:
-                result = reduceNode(node.expression, f, result);
+            case 294 /* PartiallyEmittedExpression */:
+                result = reduceNode(node.expression, cbNode, result);
                 break;
             default:
                 var edgeTraversalPath = nodeEdgeTraversalMap[kind];
@@ -43938,8 +44188,8 @@ var ts;
                         var value = node[edge.name];
                         if (value !== undefined) {
                             result = ts.isArray(value)
-                                ? ts.reduceLeft(value, f, result)
-                                : f(result, value);
+                                ? reduceNodes(value, cbNodes, result)
+                                : cbNode(result, value);
                         }
                     }
                 }
@@ -43949,8 +44199,8 @@ var ts;
     }
     ts.reduceEachChild = reduceEachChild;
     function visitNode(node, visitor, test, optional, lift, parenthesize, parentNode) {
-        if (node === undefined) {
-            return undefined;
+        if (node === undefined || visitor === undefined) {
+            return node;
         }
         aggregateTransformFlags(node);
         var visited = visitor(node);
@@ -44034,6 +44284,43 @@ var ts;
         return updated || nodes;
     }
     ts.visitNodes = visitNodes;
+    /**
+     * Starts a new lexical environment and visits a statement list, ending the lexical environment
+     * and merging hoisted declarations upon completion.
+     */
+    function visitLexicalEnvironment(statements, visitor, context, start, ensureUseStrict) {
+        context.startLexicalEnvironment();
+        statements = visitNodes(statements, visitor, ts.isStatement, start);
+        if (ensureUseStrict && !ts.startsWithUseStrict(statements)) {
+            statements = ts.createNodeArray([ts.createStatement(ts.createLiteral("use strict"))].concat(statements), statements);
+        }
+        var declarations = context.endLexicalEnvironment();
+        return ts.createNodeArray(ts.concatenate(statements, declarations), statements);
+    }
+    ts.visitLexicalEnvironment = visitLexicalEnvironment;
+    /**
+     * Starts a new lexical environment and visits a parameter list, suspending the lexical
+     * environment upon completion.
+     */
+    function visitParameterList(nodes, visitor, context) {
+        context.startLexicalEnvironment();
+        var updated = visitNodes(nodes, visitor, ts.isParameterDeclaration);
+        context.suspendLexicalEnvironment();
+        return updated;
+    }
+    ts.visitParameterList = visitParameterList;
+    function visitFunctionBody(node, visitor, context) {
+        context.resumeLexicalEnvironment();
+        var updated = visitNode(node, visitor, ts.isConciseBody);
+        var declarations = context.endLexicalEnvironment();
+        if (ts.some(declarations)) {
+            var block = ts.convertToFunctionBody(updated);
+            var statements = mergeLexicalEnvironment(block.statements, declarations);
+            return ts.updateBlock(block, statements);
+        }
+        return updated;
+    }
+    ts.visitFunctionBody = visitFunctionBody;
     function visitEachChild(node, visitor, context) {
         if (node === undefined) {
             return undefined;
@@ -44059,25 +44346,25 @@ var ts;
                 return ts.updateComputedPropertyName(node, visitNode(node.expression, visitor, ts.isExpression));
             // Signature elements
             case 144 /* Parameter */:
-                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
+                return ts.updateParameter(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), node.dotDotDotToken, visitNode(node.name, visitor, ts.isBindingName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             // Type member
             case 147 /* PropertyDeclaration */:
                 return ts.updateProperty(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             case 149 /* MethodDeclaration */:
-                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateMethod(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 150 /* Constructor */:
-                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateConstructor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             case 151 /* GetAccessor */:
-                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateGetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 152 /* SetAccessor */:
-                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateSetAccessor(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitParameterList(node.parameters, visitor, context), visitFunctionBody(node.body, visitor, context));
             // Binding patterns
             case 172 /* ObjectBindingPattern */:
                 return ts.updateObjectBindingPattern(node, visitNodes(node.elements, visitor, ts.isBindingElement));
             case 173 /* ArrayBindingPattern */:
                 return ts.updateArrayBindingPattern(node, visitNodes(node.elements, visitor, ts.isArrayBindingElement));
             case 174 /* BindingElement */:
-                return ts.updateBindingElement(node, visitNode(node.propertyName, visitor, ts.isPropertyName, /*optional*/ true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
+                return ts.updateBindingElement(node, node.dotDotDotToken, visitNode(node.propertyName, visitor, ts.isPropertyName, /*optional*/ true), visitNode(node.name, visitor, ts.isBindingName), visitNode(node.initializer, visitor, ts.isExpression, /*optional*/ true));
             // Expression
             case 175 /* ArrayLiteralExpression */:
                 return ts.updateArrayLiteral(node, visitNodes(node.elements, visitor, ts.isExpression));
@@ -44096,9 +44383,9 @@ var ts;
             case 183 /* ParenthesizedExpression */:
                 return ts.updateParen(node, visitNode(node.expression, visitor, ts.isExpression));
             case 184 /* FunctionExpression */:
-                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateFunctionExpression(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 185 /* ArrowFunction */:
-                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isConciseBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateArrowFunction(node, visitNodes(node.modifiers, visitor, ts.isModifier), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 186 /* DeleteExpression */:
                 return ts.updateDelete(node, visitNode(node.expression, visitor, ts.isExpression));
             case 187 /* TypeOfExpression */:
@@ -44168,7 +44455,7 @@ var ts;
             case 224 /* VariableDeclarationList */:
                 return ts.updateVariableDeclarationList(node, visitNodes(node.declarations, visitor, ts.isVariableDeclaration));
             case 225 /* FunctionDeclaration */:
-                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), (context.startLexicalEnvironment(), visitNodes(node.parameters, visitor, ts.isParameter)), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), mergeFunctionBodyLexicalEnvironment(visitNode(node.body, visitor, ts.isFunctionBody, /*optional*/ true), context.endLexicalEnvironment()));
+                return ts.updateFunctionDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isPropertyName), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitParameterList(node.parameters, visitor, context), visitNode(node.type, visitor, ts.isTypeNode, /*optional*/ true), visitFunctionBody(node.body, visitor, context));
             case 226 /* ClassDeclaration */:
                 return ts.updateClassDeclaration(node, visitNodes(node.decorators, visitor, ts.isDecorator), visitNodes(node.modifiers, visitor, ts.isModifier), visitNode(node.name, visitor, ts.isIdentifier, /*optional*/ true), visitNodes(node.typeParameters, visitor, ts.isTypeParameter), visitNodes(node.heritageClauses, visitor, ts.isHeritageClause), visitNodes(node.members, visitor, ts.isClassElement));
             case 232 /* CaseBlock */:
@@ -44224,10 +44511,9 @@ var ts;
                 return ts.updateSpreadAssignment(node, visitNode(node.expression, visitor, ts.isExpression));
             // Top-level nodes
             case 261 /* SourceFile */:
-                context.startLexicalEnvironment();
-                return ts.updateSourceFileNode(node, ts.createNodeArray(ts.concatenate(visitNodes(node.statements, visitor, ts.isStatement), context.endLexicalEnvironment()), node.statements));
+                return ts.updateSourceFileNode(node, visitLexicalEnvironment(node.statements, visitor, context));
             // Transformation nodes
-            case 293 /* PartiallyEmittedExpression */:
+            case 294 /* PartiallyEmittedExpression */:
                 return ts.updatePartiallyEmittedExpression(node, visitNode(node.expression, visitor, ts.isExpression));
             default:
                 var updated = void 0;
@@ -44256,6 +44542,15 @@ var ts;
         // return node;
     }
     ts.visitEachChild = visitEachChild;
+    function mergeLexicalEnvironment(statements, declarations) {
+        if (!ts.some(declarations)) {
+            return statements;
+        }
+        return ts.isNodeArray(statements)
+            ? ts.createNodeArray(ts.concatenate(statements, declarations), statements)
+            : ts.addRange(statements, declarations);
+    }
+    ts.mergeLexicalEnvironment = mergeLexicalEnvironment;
     function mergeFunctionBodyLexicalEnvironment(body, declarations) {
         if (body && declarations !== undefined && declarations.length > 0) {
             if (ts.isBlock(body)) {
@@ -44308,13 +44603,25 @@ var ts;
         if (node === undefined) {
             return 0 /* None */;
         }
-        else if (node.transformFlags & 536870912 /* HasComputedFlags */) {
+        if (node.transformFlags & 536870912 /* HasComputedFlags */) {
             return node.transformFlags & ~ts.getTransformFlagsSubtreeExclusions(node.kind);
         }
-        else {
-            var subtreeFlags = aggregateTransformFlagsForSubtree(node);
-            return ts.computeTransformFlagsForNode(node, subtreeFlags);
+        var subtreeFlags = aggregateTransformFlagsForSubtree(node);
+        return ts.computeTransformFlagsForNode(node, subtreeFlags);
+    }
+    function aggregateTransformFlagsForNodeArray(nodes) {
+        if (nodes === undefined) {
+            return 0 /* None */;
+        }
+        var subtreeFlags = 0 /* None */;
+        var nodeArrayFlags = 0 /* None */;
+        for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
+            var node = nodes_3[_i];
+            subtreeFlags |= aggregateTransformFlagsForNode(node);
+            nodeArrayFlags |= node.transformFlags & ~536870912 /* HasComputedFlags */;
         }
+        nodes.transformFlags = nodeArrayFlags | 536870912 /* HasComputedFlags */;
+        return subtreeFlags;
     }
     /**
      * Aggregates the transform flags for the subtree of a node.
@@ -44326,14 +44633,17 @@ var ts;
             return 0 /* None */;
         }
         // Aggregate the transform flags of each child.
-        return reduceEachChild(node, aggregateTransformFlagsForChildNode, 0 /* None */);
+        return reduceEachChild(node, 0 /* None */, aggregateTransformFlagsForChildNode, aggregateTransformFlagsForChildNodes);
     }
     /**
      * Aggregates the TransformFlags of a child node with the TransformFlags of its
      * siblings.
      */
-    function aggregateTransformFlagsForChildNode(transformFlags, child) {
-        return transformFlags | aggregateTransformFlagsForNode(child);
+    function aggregateTransformFlagsForChildNode(transformFlags, node) {
+        return transformFlags | aggregateTransformFlagsForNode(node);
+    }
+    function aggregateTransformFlagsForChildNodes(transformFlags, nodes) {
+        return transformFlags | aggregateTransformFlagsForNodeArray(nodes);
     }
     var Debug;
     (function (Debug) {
@@ -44343,9 +44653,21 @@ var ts;
         Debug.failBadSyntaxKind = Debug.shouldAssert(1 /* Normal */)
             ? function (node, message) { return Debug.assert(false, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected."; }); }
             : ts.noop;
+        Debug.assertEachNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (nodes, test, message) { return Debug.assert(test === undefined || ts.every(nodes, test), message || "Unexpected node.", function () { return "Node array did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
         Debug.assertNode = Debug.shouldAssert(1 /* Normal */)
             ? function (node, test, message) { return Debug.assert(test === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
             : ts.noop;
+        Debug.assertOptionalNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, test, message) { return Debug.assert(test === undefined || node === undefined || test(node), message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " did not pass test '" + getFunctionName(test) + "'."; }); }
+            : ts.noop;
+        Debug.assertOptionalToken = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, kind, message) { return Debug.assert(kind === undefined || node === undefined || node.kind === kind, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was not a '" + ts.formatSyntaxKind(kind) + "' token."; }); }
+            : ts.noop;
+        Debug.assertMissingNode = Debug.shouldAssert(1 /* Normal */)
+            ? function (node, message) { return Debug.assert(node === undefined, message || "Unexpected node.", function () { return "Node " + ts.formatSyntaxKind(node.kind) + " was unexpected'."; }); }
+            : ts.noop;
         function getFunctionName(func) {
             if (typeof func !== "function") {
                 return "";
@@ -44367,504 +44689,348 @@ var ts;
 /*@internal*/
 var ts;
 (function (ts) {
+    var FlattenLevel;
+    (function (FlattenLevel) {
+        FlattenLevel[FlattenLevel["All"] = 0] = "All";
+        FlattenLevel[FlattenLevel["ObjectRest"] = 1] = "ObjectRest";
+    })(FlattenLevel = ts.FlattenLevel || (ts.FlattenLevel = {}));
     /**
-     * Flattens a destructuring assignment expression.
+     * Flattens a DestructuringAssignment or a VariableDeclaration to an expression.
      *
-     * @param root The destructuring assignment expression.
-     * @param needsValue Indicates whether the value from the right-hand-side of the
-     *                   destructuring assignment is needed as part of a larger expression.
-     * @param recordTempVariable A callback used to record new temporary variables.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param node The node to flatten.
+     * @param visitor An optional visitor used to visit initializers.
+     * @param context The transformation context.
+     * @param level Indicates the extent to which flattening should occur.
+     * @param needsValue An optional value indicating whether the value from the right-hand-side of
+     * the destructuring assignment is needed as part of a larger expression.
+     * @param createAssignmentCallback An optional callback used to create the assignment expression.
      */
-    function flattenDestructuringAssignment(context, node, needsValue, recordTempVariable, visitor, transformRest) {
-        if (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
-            var right = node.right;
-            if (ts.isDestructuringAssignment(right)) {
-                return flattenDestructuringAssignment(context, right, needsValue, recordTempVariable, visitor);
-            }
-            else {
-                return node.right;
-            }
-        }
+    function flattenDestructuringAssignment(node, visitor, context, level, needsValue, createAssignmentCallback) {
         var location = node;
-        var value = node.right;
-        var expressions = [];
-        if (needsValue) {
-            // If the right-hand value of the destructuring assignment needs to be preserved (as
-            // is the case when the destructuring assignmen) is part of a larger expression),
-            // then we need to cache the right-hand value.
-            //
-            // The source map location for the assignment should point to the entire binary
-            // expression.
-            value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment, visitor);
+        var value;
+        if (ts.isDestructuringAssignment(node)) {
+            value = node.right;
+            while (ts.isEmptyObjectLiteralOrArrayLiteral(node.left)) {
+                if (ts.isDestructuringAssignment(value)) {
+                    location = node = value;
+                    value = node.right;
+                }
+                else {
+                    return value;
+                }
+            }
         }
-        else if (ts.nodeIsSynthesized(node)) {
-            // Generally, the source map location for a destructuring assignment is the root
-            // expression.
-            //
-            // However, if the root expression is synthesized (as in the case
-            // of the initializer when transforming a ForOfStatement), then the source map
-            // location should point to the right-hand value of the expression.
-            location = value;
+        var expressions;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: true,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayAssignmentPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectAssignmentPattern,
+            createArrayBindingOrAssignmentElement: makeAssignmentElement,
+            visitor: visitor
+        };
+        if (value) {
+            value = ts.visitNode(value, visitor, ts.isExpression);
+            if (needsValue) {
+                // If the right-hand value of the destructuring assignment needs to be preserved (as
+                // is the case when the destructuring assignment is part of a larger expression),
+                // then we need to cache the right-hand value.
+                //
+                // The source map location for the assignment should point to the entire binary
+                // expression.
+                value = ensureIdentifier(flattenContext, value, /*reuseIdentifierExpressions*/ true, location);
+            }
+            else if (ts.nodeIsSynthesized(node)) {
+                // Generally, the source map location for a destructuring assignment is the root
+                // expression.
+                //
+                // However, if the root expression is synthesized (as in the case
+                // of the initializer when transforming a ForOfStatement), then the source map
+                // location should point to the right-hand value of the expression.
+                location = value;
+            }
         }
-        flattenDestructuring(node, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
-        if (needsValue) {
+        flattenBindingOrAssignmentElement(flattenContext, node, value, location, /*skipInitializer*/ ts.isDestructuringAssignment(node));
+        if (value && needsValue) {
+            if (!ts.some(expressions)) {
+                return value;
+            }
             expressions.push(value);
         }
-        var expression = ts.inlineExpressions(expressions);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location) {
-            var expression = ts.createAssignment(name, value, location);
+        return ts.aggregateTransformFlags(ts.inlineExpressions(expressions)) || ts.createOmittedExpression();
+        function emitExpression(expression) {
             // NOTE: this completely disables source maps, but aligns with the behavior of
             //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(expression, 2048 /* NoNestedSourceMaps */);
+            ts.setEmitFlags(expression, 64 /* NoNestedSourceMaps */);
             ts.aggregateTransformFlags(expression);
-            expressions.push(expression);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitAssignment(name, value, location);
-            return name;
+            expressions = ts.append(expressions, expression);
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, createAssignmentCallback ? ts.isIdentifier : ts.isExpression);
+            var expression = createAssignmentCallback
+                ? createAssignmentCallback(target, value, location)
+                : ts.createAssignment(ts.visitNode(target, visitor, ts.isExpression), value, location);
+            expression.original = original;
+            emitExpression(expression);
         }
     }
     ts.flattenDestructuringAssignment = flattenDestructuringAssignment;
     /**
-     * Flattens binding patterns in a parameter declaration.
+     * Flattens a VariableDeclaration or ParameterDeclaration to one or more variable declarations.
      *
-     * @param node The ParameterDeclaration to flatten.
-     * @param value The rhs value for the binding pattern.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param node The node to flatten.
+     * @param visitor An optional visitor used to visit initializers.
+     * @param context The transformation context.
+     * @param boundValue The value bound to the declaration.
+     * @param skipInitializer A value indicating whether to ignore the initializer of `node`.
+     * @param hoistTempVariables Indicates whether temporary variables should not be recorded in-line.
+     * @param level Indicates the extent to which flattening should occur.
      */
-    function flattenParameterDestructuring(node, value, visitor, transformRest) {
+    function flattenDestructuringBinding(node, visitor, context, level, rval, hoistTempVariables, skipInitializer) {
+        var pendingExpressions;
+        var pendingDeclarations = [];
         var declarations = [];
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, transformRest, visitor);
-        return declarations;
-        function emitAssignment(name, value, location) {
-            var declaration = ts.createVariableDeclaration(name, /*type*/ undefined, value, location);
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(declaration, 2048 /* NoNestedSourceMaps */);
-            ts.aggregateTransformFlags(declaration);
-            declarations.push(declaration);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(/*recordTempVariable*/ undefined);
-            emitAssignment(name, value, location);
-            return name;
+        var flattenContext = {
+            context: context,
+            level: level,
+            hoistTempVariables: hoistTempVariables,
+            emitExpression: emitExpression,
+            emitBindingOrAssignment: emitBindingOrAssignment,
+            createArrayBindingOrAssignmentPattern: makeArrayBindingPattern,
+            createObjectBindingOrAssignmentPattern: makeObjectBindingPattern,
+            createArrayBindingOrAssignmentElement: makeBindingElement,
+            visitor: visitor
+        };
+        flattenBindingOrAssignmentElement(flattenContext, node, rval, node, skipInitializer);
+        if (pendingExpressions) {
+            var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+            if (hoistTempVariables) {
+                var value = ts.inlineExpressions(pendingExpressions);
+                pendingExpressions = undefined;
+                emitBindingOrAssignment(temp, value, /*location*/ undefined, /*original*/ undefined);
+            }
+            else {
+                context.hoistVariableDeclaration(temp);
+                var pendingDeclaration = ts.lastOrUndefined(pendingDeclarations);
+                pendingDeclaration.pendingExpressions = ts.append(pendingDeclaration.pendingExpressions, ts.createAssignment(temp, pendingDeclaration.value));
+                ts.addRange(pendingDeclaration.pendingExpressions, pendingExpressions);
+                pendingDeclaration.value = temp;
+            }
         }
-        function emitRestAssignment(elements, value, location) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location);
+        for (var _i = 0, pendingDeclarations_1 = pendingDeclarations; _i < pendingDeclarations_1.length; _i++) {
+            var _a = pendingDeclarations_1[_i], pendingExpressions_1 = _a.pendingExpressions, name_29 = _a.name, value = _a.value, location_2 = _a.location, original = _a.original;
+            var variable = ts.createVariableDeclaration(name_29, 
+            /*type*/ undefined, pendingExpressions_1 ? ts.inlineExpressions(ts.append(pendingExpressions_1, value)) : value, location_2);
+            variable.original = original;
+            if (ts.isIdentifier(name_29)) {
+                ts.setEmitFlags(variable, 64 /* NoNestedSourceMaps */);
+            }
+            ts.aggregateTransformFlags(variable);
+            declarations.push(variable);
         }
-    }
-    ts.flattenParameterDestructuring = flattenParameterDestructuring;
-    /**
-     * Flattens binding patterns in a variable declaration.
-     *
-     * @param node The VariableDeclaration to flatten.
-     * @param value An optional rhs value for the binding pattern.
-     * @param visitor An optional visitor to use to visit expressions.
-     */
-    function flattenVariableDestructuring(node, value, visitor, recordTempVariable, transformRest) {
-        var declarations = [];
-        var pendingAssignments;
-        flattenDestructuring(node, value, node, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor);
         return declarations;
-        function emitAssignment(name, value, location, original) {
-            if (pendingAssignments) {
-                pendingAssignments.push(value);
-                value = ts.inlineExpressions(pendingAssignments);
-                pendingAssignments = undefined;
-            }
-            var declaration = ts.createVariableDeclaration(name, /*type*/ undefined, value, location);
-            declaration.original = original;
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(declaration, 2048 /* NoNestedSourceMaps */);
-            declarations.push(declaration);
-            ts.aggregateTransformFlags(declaration);
+        function emitExpression(value) {
+            pendingExpressions = ts.append(pendingExpressions, value);
         }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            if (recordTempVariable) {
-                var assignment = ts.createAssignment(name, value, location);
-                if (pendingAssignments) {
-                    pendingAssignments.push(assignment);
-                }
-                else {
-                    pendingAssignments = [assignment];
-                }
-            }
-            else {
-                emitAssignment(name, value, location, /*original*/ undefined);
+        function emitBindingOrAssignment(target, value, location, original) {
+            ts.Debug.assertNode(target, ts.isBindingName);
+            if (pendingExpressions) {
+                value = ts.inlineExpressions(ts.append(pendingExpressions, value));
+                pendingExpressions = undefined;
             }
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectBindingPattern(elements), value, location, original);
+            pendingDeclarations.push({ pendingExpressions: pendingExpressions, name: target, value: value, location: location, original: original });
         }
     }
-    ts.flattenVariableDestructuring = flattenVariableDestructuring;
+    ts.flattenDestructuringBinding = flattenDestructuringBinding;
     /**
-     * Flattens binding patterns in a variable declaration and transforms them into an expression.
+     * Flattens a BindingOrAssignmentElement into zero or more bindings or assignments.
      *
-     * @param node The VariableDeclaration to flatten.
-     * @param recordTempVariable A callback used to record new temporary variables.
-     * @param createAssignmentCallback An optional callback used to create assignment expressions
-     * for non-temporary variables.
-     * @param visitor An optional visitor to use to visit expressions.
+     * @param flattenContext Options used to control flattening.
+     * @param element The element to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     * @param skipInitializer An optional value indicating whether to include the initializer
+     * for the element.
      */
-    function flattenVariableDestructuringToExpression(node, recordTempVariable, createAssignmentCallback, visitor) {
-        var pendingAssignments = [];
-        flattenDestructuring(node, /*value*/ undefined, node, emitAssignment, emitTempVariableAssignment, ts.noop, emitRestAssignment, /*transformRest*/ false, visitor);
-        var expression = ts.inlineExpressions(pendingAssignments);
-        ts.aggregateTransformFlags(expression);
-        return expression;
-        function emitAssignment(name, value, location, original) {
-            var expression = createAssignmentCallback
-                ? createAssignmentCallback(name.kind === 70 /* Identifier */ ? name : emitTempVariableAssignment(name, location), value, location)
-                : ts.createAssignment(name, value, location);
-            emitPendingAssignment(expression, original);
-        }
-        function emitTempVariableAssignment(value, location) {
-            var name = ts.createTempVariable(recordTempVariable);
-            emitPendingAssignment(ts.createAssignment(name, value, location), /*original*/ undefined);
-            return name;
-        }
-        function emitRestAssignment(elements, value, location, original) {
-            emitAssignment(ts.createObjectLiteral(elements), value, location, original);
-        }
-        function emitPendingAssignment(expression, original) {
-            expression.original = original;
-            // NOTE: this completely disables source maps, but aligns with the behavior of
-            //       `emitAssignment` in the old emitter.
-            ts.setEmitFlags(expression, 2048 /* NoNestedSourceMaps */);
-            pendingAssignments.push(expression);
-        }
-    }
-    ts.flattenVariableDestructuringToExpression = flattenVariableDestructuringToExpression;
-    function flattenDestructuring(root, value, location, emitAssignment, emitTempVariableAssignment, recordTempVariable, emitRestAssignment, transformRest, visitor) {
-        if (value && visitor) {
-            value = ts.visitNode(value, visitor, ts.isExpression);
-        }
-        if (ts.isBinaryExpression(root)) {
-            emitDestructuringAssignment(root.left, value, location);
-        }
-        else {
-            emitBindingElement(root, value);
-        }
-        function emitDestructuringAssignment(bindingTarget, value, location) {
-            // When emitting target = value use source map node to highlight, including any temporary assignments needed for this
-            var target;
-            if (ts.isShorthandPropertyAssignment(bindingTarget)) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.objectAssignmentInitializer, visitor, ts.isExpression)
-                    : bindingTarget.objectAssignmentInitializer;
-                if (initializer) {
-                    value = createDefaultValueCheck(value, initializer, location);
-                }
-                target = bindingTarget.name;
-            }
-            else if (ts.isBinaryExpression(bindingTarget) && bindingTarget.operatorToken.kind === 57 /* EqualsToken */) {
-                var initializer = visitor
-                    ? ts.visitNode(bindingTarget.right, visitor, ts.isExpression)
-                    : bindingTarget.right;
-                value = createDefaultValueCheck(value, initializer, location);
-                target = bindingTarget.left;
-            }
-            else {
-                target = bindingTarget;
-            }
-            if (target.kind === 176 /* ObjectLiteralExpression */) {
-                emitObjectLiteralAssignment(target, value, location);
-            }
-            else if (target.kind === 175 /* ArrayLiteralExpression */) {
-                emitArrayLiteralAssignment(target, value, location);
+    function flattenBindingOrAssignmentElement(flattenContext, element, value, location, skipInitializer) {
+        if (!skipInitializer) {
+            var initializer = ts.visitNode(ts.getInitializerOfBindingOrAssignmentElement(element), flattenContext.visitor, ts.isExpression);
+            if (initializer) {
+                // Combine value and initializer
+                value = value ? createDefaultValueCheck(flattenContext, value, initializer, location) : initializer;
             }
-            else {
-                var name_30 = ts.getMutableClone(target);
-                ts.setSourceMapRange(name_30, target);
-                ts.setCommentRange(name_30, target);
-                emitAssignment(name_30, value, location, /*original*/ undefined);
+            else if (!value) {
+                // Use 'void 0' in absence of value and initializer
+                value = ts.createVoidZero();
             }
         }
-        function emitObjectLiteralAssignment(target, value, location) {
-            var properties = target.properties;
-            if (properties.length !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to hightlight the passed in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            var bindingElements = [];
-            for (var i = 0; i < properties.length; i++) {
-                var p = properties[i];
-                if (p.kind === 257 /* PropertyAssignment */ || p.kind === 258 /* ShorthandPropertyAssignment */) {
-                    if (!transformRest ||
-                        p.transformFlags & 8388608 /* ContainsSpreadExpression */ ||
-                        (p.kind === 257 /* PropertyAssignment */ && p.initializer.transformFlags & 8388608 /* ContainsSpreadExpression */)) {
-                        if (bindingElements.length) {
-                            emitRestAssignment(bindingElements, value, location, target);
-                            bindingElements = [];
-                        }
-                        var propName = p.name;
-                        var bindingTarget = p.kind === 258 /* ShorthandPropertyAssignment */ ? p : p.initializer || propName;
-                        // Assignment for bindingTarget = value.propName should highlight whole property, hence use p as source map node
-                        emitDestructuringAssignment(bindingTarget, createDestructuringPropertyAccess(value, propName), p);
-                    }
-                    else {
-                        bindingElements.push(p);
-                    }
-                }
-                else if (i === properties.length - 1 &&
-                    p.kind === 259 /* SpreadAssignment */ &&
-                    p.expression.kind === 70 /* Identifier */) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, location, target);
-                        bindingElements = [];
-                    }
-                    var propName = p.expression;
-                    var restCall = createRestCall(value, target.properties, function (p) { return p.name; }, target);
-                    emitDestructuringAssignment(propName, restCall, p);
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, location, target);
-                bindingElements = [];
-            }
+        var bindingTarget = ts.getTargetOfBindingOrAssignmentElement(element);
+        if (ts.isObjectBindingOrAssignmentPattern(bindingTarget)) {
+            flattenObjectBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitArrayLiteralAssignment(target, value, location) {
-            if (transformRest) {
-                emitESNextArrayLiteralAssignment(target, value, location);
-            }
-            else {
-                emitES2015ArrayLiteralAssignment(target, value, location);
-            }
+        else if (ts.isArrayBindingOrAssignmentPattern(bindingTarget)) {
+            flattenArrayBindingOrAssignmentPattern(flattenContext, element, bindingTarget, value, location);
         }
-        function emitESNextArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to highlight the passed-in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            var expressions = [];
-            var spreadContainingExpressions = [];
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind === 198 /* OmittedExpression */) {
-                    continue;
-                }
-                if (e.transformFlags & 8388608 /* ContainsSpreadExpression */ && i < numElements - 1) {
-                    var tmp = ts.createTempVariable(recordTempVariable);
-                    spreadContainingExpressions.push([e, tmp]);
-                    expressions.push(tmp);
+        else {
+            flattenContext.emitBindingOrAssignment(bindingTarget, value, location, /*original*/ element);
+        }
+    }
+    /**
+     * Flattens an ObjectBindingOrAssignmentPattern into zero or more bindings or assignments.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param parent The parent element of the pattern.
+     * @param pattern The ObjectBindingOrAssignmentPattern to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     */
+    function flattenObjectBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1) {
+            // For anything other than a single-element destructuring we need to generate a temporary
+            // to ensure value is evaluated exactly once. Additionally, if we have zero elements
+            // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
+            // so in that case, we'll intentionally create that temporary.
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var computedTempVariables;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(element);
+                if (flattenContext.level >= 1 /* ObjectRest */
+                    && !(element.transformFlags & (524288 /* ContainsRest */ | 1048576 /* ContainsObjectRest */))
+                    && !(ts.getTargetOfBindingOrAssignmentElement(element).transformFlags & (524288 /* ContainsRest */ | 1048576 /* ContainsObjectRest */))
+                    && !ts.isComputedPropertyName(propertyName)) {
+                    bindingElements = ts.append(bindingElements, element);
                 }
                 else {
-                    expressions.push(e);
-                }
-            }
-            emitAssignment(ts.updateArrayLiteral(target, expressions), value, undefined, undefined);
-            for (var _i = 0, spreadContainingExpressions_1 = spreadContainingExpressions; _i < spreadContainingExpressions_1.length; _i++) {
-                var _a = spreadContainingExpressions_1[_i], e = _a[0], tmp = _a[1];
-                emitDestructuringAssignment(e, tmp, e);
-            }
-        }
-        function emitES2015ArrayLiteralAssignment(target, value, location) {
-            var elements = target.elements;
-            var numElements = elements.length;
-            if (numElements !== 1) {
-                // For anything but a single element destructuring we need to generate a temporary
-                // to ensure value is evaluated exactly once.
-                // When doing so we want to highlight the passed-in source map node since thats the one needing this temp assignment
-                value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            }
-            for (var i = 0; i < numElements; i++) {
-                var e = elements[i];
-                if (e.kind !== 198 /* OmittedExpression */) {
-                    // Assignment for target = value.propName should highligh whole property, hence use e as source map node
-                    if (e.kind !== 196 /* SpreadElement */) {
-                        emitDestructuringAssignment(e, ts.createElementAccess(value, ts.createLiteral(i)), e);
+                    if (bindingElements) {
+                        flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                        bindingElements = undefined;
                     }
-                    else if (i === numElements - 1) {
-                        emitDestructuringAssignment(e.expression, ts.createArraySlice(value, i), e);
+                    var rhsValue = createDestructuringPropertyAccess(flattenContext, value, propertyName);
+                    if (ts.isComputedPropertyName(propertyName)) {
+                        computedTempVariables = ts.append(computedTempVariables, rhsValue.argumentExpression);
                     }
+                    flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
                 }
             }
-        }
-        /** Given value: o, propName: p, pattern: { a, b, ...p } from the original statement
-         * `{ a, b, ...p } = o`, create `p = __rest(o, ["a", "b"]);`*/
-        function createRestCall(value, elements, getPropertyName, location) {
-            var propertyNames = [];
-            for (var i = 0; i < elements.length - 1; i++) {
-                if (ts.isOmittedExpression(elements[i])) {
-                    continue;
+            else if (i === numElements - 1) {
+                if (bindingElements) {
+                    flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+                    bindingElements = undefined;
                 }
-                var str = ts.createSynthesizedNode(9 /* StringLiteral */);
-                str.pos = location.pos;
-                str.end = location.end;
-                str.text = ts.getTextOfPropertyName(getPropertyName(elements[i]));
-                propertyNames.push(str);
+                var rhsValue = createRestCall(flattenContext.context, value, elements, computedTempVariables, pattern);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, element);
             }
-            var args = ts.createSynthesizedNodeArray([value, ts.createArrayLiteral(propertyNames, location)]);
-            return ts.createCall(ts.createIdentifier("__rest"), undefined, args);
         }
-        function emitBindingElement(target, value) {
-            // Any temporary assignments needed to emit target = value should point to target
-            var initializer = visitor ? ts.visitNode(target.initializer, visitor, ts.isExpression) : target.initializer;
-            if (transformRest) {
-                value = value || initializer;
-            }
-            else if (initializer) {
-                // Combine value and initializer
-                value = value ? createDefaultValueCheck(value, initializer, target) : initializer;
-            }
-            else if (!value) {
-                // Use 'void 0' in absence of value and initializer
-                value = ts.createVoidZero();
-            }
-            var name = target.name;
-            if (!ts.isBindingPattern(name)) {
-                emitAssignment(name, value, target, target);
-            }
-            else {
-                var numElements = name.elements.length;
-                if (numElements !== 1) {
-                    // For anything other than a single-element destructuring we need to generate a temporary
-                    // to ensure value is evaluated exactly once. Additionally, if we have zero elements
-                    // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
-                    // so in that case, we'll intentionally create that temporary.
-                    value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ numElements !== 0, target, emitTempVariableAssignment);
-                }
-                if (name.kind === 173 /* ArrayBindingPattern */) {
-                    emitArrayBindingElement(name, value);
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createObjectBindingOrAssignmentPattern(bindingElements), value, location, pattern);
+        }
+    }
+    /**
+     * Flattens an ArrayBindingOrAssignmentPattern into zero or more bindings or assignments.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param parent The parent element of the pattern.
+     * @param pattern The ArrayBindingOrAssignmentPattern to flatten.
+     * @param value The current RHS value to assign to the element.
+     * @param location The location to use for source maps and comments.
+     */
+    function flattenArrayBindingOrAssignmentPattern(flattenContext, parent, pattern, value, location) {
+        var elements = ts.getElementsOfBindingOrAssignmentPattern(pattern);
+        var numElements = elements.length;
+        if (numElements !== 1 && (flattenContext.level < 1 /* ObjectRest */ || numElements === 0)) {
+            // For anything other than a single-element destructuring we need to generate a temporary
+            // to ensure value is evaluated exactly once. Additionally, if we have zero elements
+            // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
+            // so in that case, we'll intentionally create that temporary.
+            var reuseIdentifierExpressions = !ts.isDeclarationBindingElement(parent) || numElements !== 0;
+            value = ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location);
+        }
+        var bindingElements;
+        var restContainingElements;
+        for (var i = 0; i < numElements; i++) {
+            var element = elements[i];
+            if (flattenContext.level >= 1 /* ObjectRest */) {
+                // If an array pattern contains an ObjectRest, we must cache the result so that we
+                // can perform the ObjectRest destructuring in a different declaration
+                if (element.transformFlags & 1048576 /* ContainsObjectRest */) {
+                    var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    if (flattenContext.hoistTempVariables) {
+                        flattenContext.context.hoistVariableDeclaration(temp);
+                    }
+                    restContainingElements = ts.append(restContainingElements, [temp, element]);
+                    bindingElements = ts.append(bindingElements, flattenContext.createArrayBindingOrAssignmentElement(temp));
                 }
                 else {
-                    emitObjectBindingElement(target, value);
+                    bindingElements = ts.append(bindingElements, element);
                 }
             }
-        }
-        function emitArrayBindingElement(name, value) {
-            if (transformRest) {
-                emitESNextArrayBindingElement(name, value);
+            else if (ts.isOmittedExpression(element)) {
+                continue;
             }
-            else {
-                emitES2015ArrayBindingElement(name, value);
+            else if (!ts.getRestIndicatorOfBindingOrAssignmentElement(element)) {
+                var rhsValue = ts.createElementAccess(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
             }
-        }
-        function emitES2015ArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (!element.dotDotDotToken) {
-                    // Rewrite element to a declaration that accesses array element at index i
-                    emitBindingElement(element, ts.createElementAccess(value, i));
-                }
-                else if (i === numElements - 1) {
-                    emitBindingElement(element, ts.createArraySlice(value, i));
-                }
+            else if (i === numElements - 1) {
+                var rhsValue = ts.createArraySlice(value, i);
+                flattenBindingOrAssignmentElement(flattenContext, element, rhsValue, /*location*/ element);
             }
         }
-        function emitESNextArrayBindingElement(name, value) {
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            var spreadContainingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (element.transformFlags & 8388608 /* ContainsSpreadExpression */ && i < numElements - 1) {
-                    spreadContainingElements.push(element);
-                    bindingElements.push(ts.createBindingElement(undefined, undefined, ts.getGeneratedNameForNode(element), undefined, value));
-                }
-                else {
-                    bindingElements.push(element);
-                }
-            }
-            emitAssignment(ts.updateArrayBindingPattern(name, bindingElements), value, undefined, undefined);
-            for (var _i = 0, spreadContainingElements_1 = spreadContainingElements; _i < spreadContainingElements_1.length; _i++) {
-                var element = spreadContainingElements_1[_i];
-                emitBindingElement(element, ts.getGeneratedNameForNode(element));
-            }
+        if (bindingElements) {
+            flattenContext.emitBindingOrAssignment(flattenContext.createArrayBindingOrAssignmentPattern(bindingElements), value, location, pattern);
         }
-        function emitObjectBindingElement(target, value) {
-            var name = target.name;
-            var elements = name.elements;
-            var numElements = elements.length;
-            var bindingElements = [];
-            for (var i = 0; i < numElements; i++) {
-                var element = elements[i];
-                if (ts.isOmittedExpression(element)) {
-                    continue;
-                }
-                if (i === numElements - 1 && element.dotDotDotToken) {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    var restCall = createRestCall(value, name.elements, function (element) { return element.propertyName || element.name; }, name);
-                    emitBindingElement(element, restCall);
-                }
-                else if (transformRest && !(element.transformFlags & 8388608 /* ContainsSpreadExpression */)) {
-                    // do not emit until we have a complete bundle of ES2015 syntax
-                    bindingElements.push(element);
-                }
-                else {
-                    if (bindingElements.length) {
-                        emitRestAssignment(bindingElements, value, target, target);
-                        bindingElements = [];
-                    }
-                    // Rewrite element to a declaration with an initializer that fetches property
-                    var propName = element.propertyName || element.name;
-                    emitBindingElement(element, createDestructuringPropertyAccess(value, propName));
-                }
-            }
-            if (bindingElements.length) {
-                emitRestAssignment(bindingElements, value, target, target);
-                bindingElements = [];
+        if (restContainingElements) {
+            for (var _i = 0, restContainingElements_1 = restContainingElements; _i < restContainingElements_1.length; _i++) {
+                var _a = restContainingElements_1[_i], id = _a[0], element = _a[1];
+                flattenBindingOrAssignmentElement(flattenContext, element, id, element);
             }
         }
-        function createDefaultValueCheck(value, defaultValue, location) {
-            value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true, location, emitTempVariableAssignment);
-            return ts.createConditional(ts.createStrictEquality(value, ts.createVoidZero()), ts.createToken(54 /* QuestionToken */), defaultValue, ts.createToken(55 /* ColonToken */), value);
+    }
+    /**
+     * Creates an expression used to provide a default value if a value is `undefined` at runtime.
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param value The RHS value to test.
+     * @param defaultValue The default value to use if `value` is `undefined` at runtime.
+     * @param location The location to use for source maps and comments.
+     */
+    function createDefaultValueCheck(flattenContext, value, defaultValue, location) {
+        value = ensureIdentifier(flattenContext, value, /*reuseIdentifierExpressions*/ true, location);
+        return ts.createConditional(ts.createTypeCheck(value, "undefined"), defaultValue, value);
+    }
+    /**
+     * Creates either a PropertyAccessExpression or an ElementAccessExpression for the
+     * right-hand side of a transformed destructuring assignment.
+     *
+     * @link https://tc39.github.io/ecma262/#sec-runtime-semantics-keyeddestructuringassignmentevaluation
+     *
+     * @param flattenContext Options used to control flattening.
+     * @param value The RHS value that is the source of the property.
+     * @param propertyName The destructuring property name.
+     */
+    function createDestructuringPropertyAccess(flattenContext, value, propertyName) {
+        if (ts.isComputedPropertyName(propertyName)) {
+            var argumentExpression = ensureIdentifier(flattenContext, propertyName.expression, /*reuseIdentifierExpressions*/ false, /*location*/ propertyName);
+            return ts.createElementAccess(value, argumentExpression);
         }
-        /**
-         * Creates either a PropertyAccessExpression or an ElementAccessExpression for the
-         * right-hand side of a transformed destructuring assignment.
-         *
-         * @param expression The right-hand expression that is the source of the property.
-         * @param propertyName The destructuring property name.
-         */
-        function createDestructuringPropertyAccess(expression, propertyName) {
-            if (ts.isComputedPropertyName(propertyName)) {
-                return ts.createElementAccess(expression, ensureIdentifier(propertyName.expression, /*reuseIdentifierExpressions*/ false, /*location*/ propertyName, emitTempVariableAssignment));
-            }
-            else if (ts.isLiteralExpression(propertyName)) {
-                var clone_2 = ts.getSynthesizedClone(propertyName);
-                clone_2.text = ts.unescapeIdentifier(clone_2.text);
-                return ts.createElementAccess(expression, clone_2);
-            }
-            else {
-                if (ts.isGeneratedIdentifier(propertyName)) {
-                    var clone_3 = ts.getSynthesizedClone(propertyName);
-                    clone_3.text = ts.unescapeIdentifier(clone_3.text);
-                    return ts.createPropertyAccess(expression, clone_3);
-                }
-                else {
-                    return ts.createPropertyAccess(expression, ts.createIdentifier(ts.unescapeIdentifier(propertyName.text)));
-                }
-            }
+        else if (ts.isStringOrNumericLiteral(propertyName)) {
+            var argumentExpression = ts.getSynthesizedClone(propertyName);
+            argumentExpression.text = ts.unescapeIdentifier(argumentExpression.text);
+            return ts.createElementAccess(value, argumentExpression);
+        }
+        else {
+            var name_30 = ts.createIdentifier(ts.unescapeIdentifier(propertyName.text));
+            return ts.createPropertyAccess(value, name_30);
         }
     }
     /**
@@ -44872,23 +45038,74 @@ var ts;
      * This function is useful to ensure that the expression's value can be read from in subsequent expressions.
      * Unless 'reuseIdentifierExpressions' is false, 'value' will be returned if it is just an identifier.
      *
+     * @param flattenContext Options used to control flattening.
      * @param value the expression whose value needs to be bound.
      * @param reuseIdentifierExpressions true if identifier expressions can simply be returned;
-     *                                   false if it is necessary to always emit an identifier.
+     * false if it is necessary to always emit an identifier.
      * @param location The location to use for source maps and comments.
-     * @param emitTempVariableAssignment A callback used to emit a temporary variable.
-     * @param visitor An optional callback used to visit the value.
      */
-    function ensureIdentifier(value, reuseIdentifierExpressions, location, emitTempVariableAssignment, visitor) {
+    function ensureIdentifier(flattenContext, value, reuseIdentifierExpressions, location) {
         if (ts.isIdentifier(value) && reuseIdentifierExpressions) {
             return value;
         }
         else {
-            if (visitor) {
-                value = ts.visitNode(value, visitor, ts.isExpression);
+            var temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+            if (flattenContext.hoistTempVariables) {
+                flattenContext.context.hoistVariableDeclaration(temp);
+                flattenContext.emitExpression(ts.createAssignment(temp, value, location));
+            }
+            else {
+                flattenContext.emitBindingOrAssignment(temp, value, location, /*original*/ undefined);
+            }
+            return temp;
+        }
+    }
+    function makeArrayBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isArrayBindingElement);
+        return ts.createArrayBindingPattern(elements);
+    }
+    function makeArrayAssignmentPattern(elements) {
+        return ts.createArrayLiteral(ts.map(elements, ts.convertToArrayAssignmentElement));
+    }
+    function makeObjectBindingPattern(elements) {
+        ts.Debug.assertEachNode(elements, ts.isBindingElement);
+        return ts.createObjectBindingPattern(elements);
+    }
+    function makeObjectAssignmentPattern(elements) {
+        return ts.createObjectLiteral(ts.map(elements, ts.convertToObjectAssignmentElement));
+    }
+    function makeBindingElement(name) {
+        return ts.createBindingElement(/*propertyName*/ undefined, /*dotDotDotToken*/ undefined, name);
+    }
+    function makeAssignmentElement(name) {
+        return name;
+    }
+    var restHelper = {
+        name: "typescript:rest",
+        scoped: false,
+        text: "\n            var __rest = (this && this.__rest) || function (s, e) {\n                var t = {};\n                for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n                    t[p] = s[p];\n                if (typeof Object.getOwnPropertySymbols === \"function\")\n                    for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\n                        t[p[i]] = s[p[i]];\n                return t;\n            };"
+    };
+    /** Given value: o, propName: p, pattern: { a, b, ...p } from the original statement
+     * `{ a, b, ...p } = o`, create `p = __rest(o, ["a", "b"]);`*/
+    function createRestCall(context, value, elements, computedTempVariables, location) {
+        context.requestEmitHelper(restHelper);
+        var propertyNames = [];
+        var computedTempVariableOffset = 0;
+        for (var i = 0; i < elements.length - 1; i++) {
+            var propertyName = ts.getPropertyNameOfBindingOrAssignmentElement(elements[i]);
+            if (propertyName) {
+                if (ts.isComputedPropertyName(propertyName)) {
+                    var temp = computedTempVariables[computedTempVariableOffset];
+                    computedTempVariableOffset++;
+                    // typeof _tmp === "symbol" ? _tmp : _tmp + ""
+                    propertyNames.push(ts.createConditional(ts.createTypeCheck(temp, "symbol"), temp, ts.createAdd(temp, ts.createLiteral(""))));
+                }
+                else {
+                    propertyNames.push(ts.createLiteral(propertyName));
+                }
             }
-            return emitTempVariableAssignment(value, location);
         }
+        return ts.createCall(ts.getHelperName("__rest"), undefined, [value, ts.createArrayLiteral(propertyNames, location)]);
     }
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
@@ -44911,7 +45128,7 @@ var ts;
         TypeScriptSubstitutionFlags[TypeScriptSubstitutionFlags["NonQualifiedEnumMembers"] = 8] = "NonQualifiedEnumMembers";
     })(TypeScriptSubstitutionFlags || (TypeScriptSubstitutionFlags = {}));
     function transformTypeScript(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
@@ -44931,7 +45148,6 @@ var ts;
         var currentNamespaceContainerName;
         var currentScope;
         var currentScopeFirstDeclarationsOfName;
-        var currentExternalHelpersModuleName;
         /**
          * Keeps track of whether expression substitution has been enabled for specific edge cases.
          * They are persisted between each SourceFile transformation and should not be reset.
@@ -44957,7 +45173,11 @@ var ts;
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            currentSourceFile = node;
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         /**
          * Visits a node, saving and restoring state variables on the stack.
@@ -44979,6 +45199,29 @@ var ts;
             return visited;
         }
         /**
+         * Performs actions that should always occur immediately before visiting a node.
+         *
+         * @param node The node to visit.
+         */
+        function onBeforeVisitNode(node) {
+            switch (node.kind) {
+                case 261 /* SourceFile */:
+                case 232 /* CaseBlock */:
+                case 231 /* ModuleBlock */:
+                case 204 /* Block */:
+                    currentScope = node;
+                    currentScopeFirstDeclarationsOfName = undefined;
+                    break;
+                case 226 /* ClassDeclaration */:
+                case 225 /* FunctionDeclaration */:
+                    if (ts.hasModifier(node, 2 /* Ambient */)) {
+                        break;
+                    }
+                    recordEmittedDeclarationInScope(node);
+                    break;
+            }
+        }
+        /**
          * General-purpose node visitor.
          *
          * @param node The node to visit.
@@ -44992,10 +45235,7 @@ var ts;
          * @param node The node to visit.
          */
         function visitorWorker(node) {
-            if (node.kind === 261 /* SourceFile */) {
-                return visitSourceFile(node);
-            }
-            else if (node.transformFlags & 1 /* TypeScript */) {
+            if (node.transformFlags & 1 /* TypeScript */) {
                 // This node is explicitly marked as TypeScript, so we should transform the node.
                 return visitTypeScript(node);
             }
@@ -45265,67 +45505,9 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        /**
-         * Performs actions that should always occur immediately before visiting a node.
-         *
-         * @param node The node to visit.
-         */
-        function onBeforeVisitNode(node) {
-            switch (node.kind) {
-                case 261 /* SourceFile */:
-                case 232 /* CaseBlock */:
-                case 231 /* ModuleBlock */:
-                case 204 /* Block */:
-                    currentScope = node;
-                    currentScopeFirstDeclarationsOfName = undefined;
-                    break;
-                case 226 /* ClassDeclaration */:
-                case 225 /* FunctionDeclaration */:
-                    if (ts.hasModifier(node, 2 /* Ambient */)) {
-                        break;
-                    }
-                    recordEmittedDeclarationInScope(node);
-                    break;
-            }
-        }
         function visitSourceFile(node) {
-            currentSourceFile = node;
-            // ensure "use strict" is emitted in all scenarios in alwaysStrict mode
-            // There is no need to emit "use strict" in the following cases:
-            //      1. The file is an external module and target is es2015 or higher
-            //      or 2. The file is an external module and module-kind is es6 or es2015 as such value is not allowed when targeting es5 or lower
-            if (compilerOptions.alwaysStrict &&
-                !(ts.isExternalModule(node) && (compilerOptions.target >= 2 /* ES2015 */ || compilerOptions.module === ts.ModuleKind.ES2015))) {
-                node = ts.ensureUseStrict(node);
-            }
-            // If the source file requires any helpers and is an external module, and
-            // the importHelpers compiler option is enabled, emit a synthesized import
-            // statement for the helpers library.
-            if (node.flags & 64512 /* EmitHelperFlags */
-                && compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                startLexicalEnvironment();
-                var statements = [];
-                var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ false, visitor);
-                var externalHelpersModuleName = ts.createUniqueName(ts.externalHelpersModuleNameText);
-                var externalHelpersModuleImport = ts.createImportDeclaration(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, ts.createImportClause(/*name*/ undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText));
-                externalHelpersModuleImport.parent = node;
-                externalHelpersModuleImport.flags &= ~8 /* Synthesized */;
-                statements.push(externalHelpersModuleImport);
-                currentExternalHelpersModuleName = externalHelpersModuleName;
-                ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
-                ts.addRange(statements, endLexicalEnvironment());
-                currentExternalHelpersModuleName = undefined;
-                node = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
-                node.externalHelpersModuleName = externalHelpersModuleName;
-            }
-            else {
-                node = ts.visitEachChild(node, sourceElementVisitor, context);
-            }
-            ts.setEmitFlags(node, 1 /* EmitEmitHelpers */ | ts.getEmitFlags(node));
-            return node;
+            var alwaysStrict = compilerOptions.alwaysStrict && !(ts.isExternalModule(node) && moduleKind === ts.ModuleKind.ES2015);
+            return ts.updateSourceFileNode(node, ts.visitLexicalEnvironment(node.statements, sourceElementVisitor, context, /*start*/ 0, alwaysStrict));
         }
         /**
          * Tests whether we should emit a __decorate call for a class declaration.
@@ -45402,7 +45584,7 @@ var ts;
             if (statements.length > 1) {
                 // Add a DeclarationMarker as a marker for the end of the declaration
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(classStatement, ts.getEmitFlags(classStatement) | 2097152 /* HasEndOfDeclarationMarker */);
             }
             return ts.singleOrMany(statements);
         }
@@ -45425,7 +45607,7 @@ var ts;
             // To better align with the old emitter, we should not emit a trailing source map
             // entry if the class has static properties.
             if (hasStaticProperties) {
-                emitFlags |= 1024 /* NoTrailingSourceMap */;
+                emitFlags |= 32 /* NoTrailingSourceMap */;
             }
             ts.setOriginalNode(classDeclaration, node);
             ts.setEmitFlags(classDeclaration, emitFlags);
@@ -45570,7 +45752,7 @@ var ts;
                 }
                 // To preserve the behavior of the old emitter, we explicitly indent
                 // the body of a class with static initializers.
-                ts.setEmitFlags(classExpression, 524288 /* Indented */ | ts.getEmitFlags(classExpression));
+                ts.setEmitFlags(classExpression, 32768 /* Indented */ | ts.getEmitFlags(classExpression));
                 expressions.push(ts.startOnNewLine(ts.createAssignment(temp, classExpression)));
                 ts.addRange(expressions, generateInitializedPropertyExpressions(staticProperties, temp));
                 expressions.push(ts.startOnNewLine(temp));
@@ -45604,7 +45786,7 @@ var ts;
             // If there is a property assignment, we need to emit constructor whether users define it or not
             // If there is no property assignment, we can omit constructor if users do not define it
             var hasInstancePropertyWithInitializer = ts.forEach(node.members, isInstanceInitializedProperty);
-            var hasParameterPropertyAssignments = node.transformFlags & 4194304 /* ContainsParameterPropertyAssignments */;
+            var hasParameterPropertyAssignments = node.transformFlags & 262144 /* ContainsParameterPropertyAssignments */;
             var constructor = ts.getFirstConstructorWithBody(node);
             // If the class does not contain nodes that require a synthesized constructor,
             // accept the current constructor if it exists.
@@ -45644,9 +45826,8 @@ var ts;
             // downlevel the '...args' portion less efficiently by naively copying the contents of 'arguments' to an array.
             // Instead, we'll avoid using a rest parameter and spread into the super call as
             // 'super(...arguments)' instead of 'super(...args)', as you can see in "transformConstructorBody".
-            return constructor
-                ? ts.visitNodes(constructor.parameters, visitor, ts.isParameter)
-                : [];
+            return ts.visitParameterList(constructor && constructor.parameters, visitor, context)
+                || [];
         }
         /**
          * Transforms (or creates) a constructor body for a class with parameter property
@@ -45659,8 +45840,7 @@ var ts;
         function transformConstructorBody(node, constructor, hasExtendsClause) {
             var statements = [];
             var indexOfFirstStatement = 0;
-            // The body of a constructor is a new lexical environment
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             if (constructor) {
                 indexOfFirstStatement = addPrologueDirectivesAndInitialSuperCall(constructor, statements);
                 // Add parameters with property assignments. Transforms this:
@@ -45704,9 +45884,10 @@ var ts;
             }
             // End the lexical environment.
             ts.addRange(statements, endLexicalEnvironment());
-            return ts.setMultiLine(ts.createBlock(ts.createNodeArray(statements, 
+            return ts.createBlock(ts.createNodeArray(statements, 
             /*location*/ constructor ? constructor.body.statements : node.members), 
-            /*location*/ constructor ? constructor.body : undefined), true);
+            /*location*/ constructor ? constructor.body : undefined, 
+            /*multiLine*/ true);
         }
         /**
          * Adds super call and preceding prologue directives into the list of statements.
@@ -45758,9 +45939,9 @@ var ts;
             ts.Debug.assert(ts.isIdentifier(node.name));
             var name = node.name;
             var propertyName = ts.getMutableClone(name);
-            ts.setEmitFlags(propertyName, 49152 /* NoComments */ | 1536 /* NoSourceMap */);
+            ts.setEmitFlags(propertyName, 1536 /* NoComments */ | 48 /* NoSourceMap */);
             var localName = ts.getMutableClone(name);
-            ts.setEmitFlags(localName, 49152 /* NoComments */);
+            ts.setEmitFlags(localName, 1536 /* NoComments */);
             return ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createThis(), propertyName, 
             /*location*/ node.name), localName), 
             /*location*/ ts.moveRangePos(node, -1)));
@@ -46072,13 +46253,13 @@ var ts;
             //       __metadata("design:type", Function),
             //       __metadata("design:paramtypes", [Object]),
             //       __metadata("design:returntype", void 0)
-            //   ], C.prototype, "method", undefined);
+            //   ], C.prototype, "method", null);
             //
             // The emit for an accessor is:
             //
             //   __decorate([
             //       dec
-            //   ], C.prototype, "accessor", undefined);
+            //   ], C.prototype, "accessor", null);
             //
             // The emit for a property is:
             //
@@ -46093,8 +46274,8 @@ var ts;
                     ? ts.createVoidZero()
                     : ts.createNull()
                 : undefined;
-            var helper = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
-            ts.setEmitFlags(helper, 49152 /* NoComments */);
+            var helper = createDecorateHelper(context, decoratorExpressions, prefix, memberName, descriptor, ts.moveRangePastDecorators(member));
+            ts.setEmitFlags(helper, 1536 /* NoComments */);
             return helper;
         }
         /**
@@ -46121,9 +46302,9 @@ var ts;
             }
             var classAlias = classAliases && classAliases[ts.getOriginalNodeId(node)];
             var localName = ts.getLocalName(node, /*allowComments*/ false, /*allowSourceMaps*/ true);
-            var decorate = ts.createDecorateHelper(currentExternalHelpersModuleName, decoratorExpressions, localName);
+            var decorate = createDecorateHelper(context, decoratorExpressions, localName);
             var expression = ts.createAssignment(localName, classAlias ? ts.createAssignment(classAlias, decorate) : decorate);
-            ts.setEmitFlags(expression, 49152 /* NoComments */);
+            ts.setEmitFlags(expression, 1536 /* NoComments */);
             ts.setSourceMapRange(expression, ts.moveRangePastDecorators(node));
             return expression;
         }
@@ -46147,9 +46328,9 @@ var ts;
                 expressions = [];
                 for (var _i = 0, decorators_1 = decorators; _i < decorators_1.length; _i++) {
                     var decorator = decorators_1[_i];
-                    var helper = ts.createParamHelper(currentExternalHelpersModuleName, transformDecorator(decorator), parameterOffset, 
+                    var helper = createParamHelper(context, transformDecorator(decorator), parameterOffset, 
                     /*location*/ decorator.expression);
-                    ts.setEmitFlags(helper, 49152 /* NoComments */);
+                    ts.setEmitFlags(helper, 1536 /* NoComments */);
                     expressions.push(helper);
                 }
             }
@@ -46172,13 +46353,13 @@ var ts;
         function addOldTypeMetadata(node, decoratorExpressions) {
             if (compilerOptions.emitDecoratorMetadata) {
                 if (shouldAddTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:type", serializeTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:type", serializeTypeOfNode(node)));
                 }
                 if (shouldAddParamTypesMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:paramtypes", serializeParameterTypesOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:paramtypes", serializeParameterTypesOfNode(node)));
                 }
                 if (shouldAddReturnTypeMetadata(node)) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:returntype", serializeReturnTypeOfNode(node)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:returntype", serializeReturnTypeOfNode(node)));
                 }
             }
         }
@@ -46195,7 +46376,7 @@ var ts;
                     (properties || (properties = [])).push(ts.createPropertyAssignment("returnType", ts.createArrowFunction(/*modifiers*/ undefined, /*typeParameters*/ undefined, [], /*type*/ undefined, ts.createToken(35 /* EqualsGreaterThanToken */), serializeReturnTypeOfNode(node))));
                 }
                 if (properties) {
-                    decoratorExpressions.push(ts.createMetadataHelper(currentExternalHelpersModuleName, "design:typeinfo", ts.createObjectLiteral(properties, /*location*/ undefined, /*multiLine*/ true)));
+                    decoratorExpressions.push(createMetadataHelper(context, "design:typeinfo", ts.createObjectLiteral(properties, /*location*/ undefined, /*multiLine*/ true)));
                 }
             }
         }
@@ -46435,7 +46616,7 @@ var ts;
                 case ts.TypeReferenceSerializationKind.Unknown:
                     var serialized = serializeEntityNameAsExpression(node.typeName, /*useFallback*/ true);
                     var temp = ts.createTempVariable(hoistVariableDeclaration);
-                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createStrictEquality(ts.createTypeOf(ts.createAssignment(temp, serialized)), ts.createLiteral("function")), temp), ts.createIdentifier("Object"));
+                    return ts.createLogicalOr(ts.createLogicalAnd(ts.createTypeCheck(ts.createAssignment(temp, serialized), "function"), temp), ts.createIdentifier("Object"));
                 case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
                     return serializeEntityNameAsExpression(node.typeName, /*useFallback*/ false);
                 case ts.TypeReferenceSerializationKind.VoidNullableOrNeverType:
@@ -46511,7 +46692,7 @@ var ts;
          * available.
          */
         function getGlobalSymbolNameWithFallback() {
-            return ts.createConditional(ts.createStrictEquality(ts.createTypeOf(ts.createIdentifier("Symbol")), ts.createLiteral("function")), ts.createToken(54 /* QuestionToken */), ts.createIdentifier("Symbol"), ts.createToken(55 /* ColonToken */), ts.createIdentifier("Object"));
+            return ts.createConditional(ts.createTypeCheck(ts.createIdentifier("Symbol"), "function"), ts.createIdentifier("Symbol"), ts.createIdentifier("Object"));
         }
         /**
          * Gets an expression that represents a property name. For a computed property, a
@@ -46613,17 +46794,17 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return undefined;
             }
-            var method = ts.createMethod(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, visitPropertyNameOfClassElement(node), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            var updated = ts.updateMethod(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Determines whether to emit an accessor declaration. We should not emit the
@@ -46647,16 +46828,16 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createGetAccessor(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateGetAccessor(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Visits a set accessor declaration of a class.
@@ -46671,15 +46852,15 @@ var ts;
             if (!shouldEmitAccessorDeclaration(node)) {
                 return undefined;
             }
-            var accessor = ts.createSetAccessor(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitNodes(node.parameters, visitor, ts.isParameter), node.body ? ts.visitEachChild(node.body, visitor, context) : ts.createBlock([]), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setOriginalNode(accessor, node);
-            ts.setCommentRange(accessor, node);
-            ts.setSourceMapRange(accessor, ts.moveRangePastDecorators(node));
-            return accessor;
+            var updated = ts.updateSetAccessor(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), visitPropertyNameOfClassElement(node), ts.visitParameterList(node.parameters, visitor, context), ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
+            if (updated !== node) {
+                // While we emit the source map for the node after skipping decorators and modifiers,
+                // we need to emit the comments for the original range.
+                ts.setCommentRange(updated, node);
+                ts.setSourceMapRange(updated, ts.moveRangePastDecorators(node));
+            }
+            return updated;
         }
         /**
          * Visits a function declaration.
@@ -46695,18 +46876,16 @@ var ts;
             if (!shouldEmitFunctionLikeDeclaration(node)) {
                 return ts.createNotEmittedStatement(node);
             }
-            var func = ts.createFunctionDeclaration(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
+            var updated = ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context) || ts.createBlock([]));
             if (isNamespaceExport(node)) {
-                var statements = [func];
+                var statements = [updated];
                 addExportMemberAssignment(statements, node);
                 return statements;
             }
-            return func;
+            return updated;
         }
         /**
          * Visits a function expression node.
@@ -46720,12 +46899,10 @@ var ts;
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            var updated = ts.updateFunctionExpression(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         /**
          * @remarks
@@ -46733,51 +46910,10 @@ var ts;
          * - The node has type annotations
          */
         function visitArrowFunction(node) {
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, transformConciseBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformFunctionBodyWorker(node.body);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            var savedCurrentScopeFirstDeclarationsOfName = currentScopeFirstDeclarationsOfName;
-            currentScope = body;
-            currentScopeFirstDeclarationsOfName = ts.createMap();
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            currentScopeFirstDeclarationsOfName = savedCurrentScopeFirstDeclarationsOfName;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-        }
-        function transformConciseBody(node) {
-            return transformConciseBodyWorker(node.body, /*forceBlockFunctionBody*/ false);
-        }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
-            if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
-            }
-            else {
-                startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
-                var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
-            }
+            var updated = ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, modifierVisitor, ts.isModifier), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.visitFunctionBody(node.body, visitor, context));
+            return updated;
         }
         /**
          * Visits a parameter declaration node.
@@ -46804,7 +46940,7 @@ var ts;
             ts.setOriginalNode(parameter, node);
             ts.setCommentRange(parameter, node);
             ts.setSourceMapRange(parameter, ts.moveRangePastModifiers(node));
-            ts.setEmitFlags(parameter.name, 1024 /* NoTrailingSourceMap */);
+            ts.setEmitFlags(parameter.name, 32 /* NoTrailingSourceMap */);
             return parameter;
         }
         /**
@@ -46830,7 +46966,8 @@ var ts;
         function transformInitializedVariable(node) {
             var name = node.name;
             if (ts.isBindingPattern(name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createNamespaceExportExpression, visitor);
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0 /* All */, 
+                /*needsValue*/ false, createNamespaceExportExpression);
             }
             else {
                 return ts.createAssignment(getNamespaceMemberNameWithSourceMapsAndWithoutComments(name), ts.visitNode(node.initializer, visitor, ts.isExpression), 
@@ -46910,14 +47047,14 @@ var ts;
             var statements = [];
             // We request to be advised when the printer is about to print this node. This allows
             // us to set up the correct state for later substitutions.
-            var emitFlags = 64 /* AdviseOnEmitNode */;
+            var emitFlags = 2 /* AdviseOnEmitNode */;
             // If needed, we should emit a variable declaration for the enum. If we emit
             // a leading variable declaration, we should not emit leading comments for the
             // enum body.
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 // We should still emit the comments if we are emitting a system module.
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384 /* NoLeadingComments */;
+                    emitFlags |= 512 /* NoLeadingComments */;
                 }
             }
             // `parameterName` is the declaration name used inside of the enum.
@@ -47094,7 +47231,7 @@ var ts;
                 //     })(m1 || (m1 = {})); // trailing comment module
                 //
                 ts.setCommentRange(statement, node);
-                ts.setEmitFlags(statement, 32768 /* NoTrailingComments */ | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(statement, 1024 /* NoTrailingComments */ | 2097152 /* HasEndOfDeclarationMarker */);
                 statements.push(statement);
                 return true;
             }
@@ -47104,7 +47241,7 @@ var ts;
                 // begin/end semantics of the declararation and to properly handle exports
                 // we wrap the leading variable declaration in a `MergeDeclarationMarker`.
                 var mergeMarker = ts.createMergeDeclarationMarker(statement);
-                ts.setEmitFlags(mergeMarker, 49152 /* NoComments */ | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(mergeMarker, 1536 /* NoComments */ | 2097152 /* HasEndOfDeclarationMarker */);
                 statements.push(mergeMarker);
                 return false;
             }
@@ -47125,14 +47262,14 @@ var ts;
             var statements = [];
             // We request to be advised when the printer is about to print this node. This allows
             // us to set up the correct state for later substitutions.
-            var emitFlags = 64 /* AdviseOnEmitNode */;
+            var emitFlags = 2 /* AdviseOnEmitNode */;
             // If needed, we should emit a variable declaration for the module. If we emit
             // a leading variable declaration, we should not emit leading comments for the
             // module body.
             if (addVarForEnumOrModuleDeclaration(statements, node)) {
                 // We should still emit the comments if we are emitting a system module.
                 if (moduleKind !== ts.ModuleKind.System || currentScope !== currentSourceFile) {
-                    emitFlags |= 16384 /* NoLeadingComments */;
+                    emitFlags |= 512 /* NoLeadingComments */;
                 }
             }
             // `parameterName` is the declaration name used inside of the namespace.
@@ -47235,7 +47372,7 @@ var ts;
             // })(hello || (hello = {}));
             // We only want to emit comment on the namespace which contains block body itself, not the containing namespaces.
             if (body.kind !== 231 /* ModuleBlock */) {
-                ts.setEmitFlags(block, ts.getEmitFlags(block) | 49152 /* NoComments */);
+                ts.setEmitFlags(block, ts.getEmitFlags(block) | 1536 /* NoComments */);
             }
             return block;
         }
@@ -47384,7 +47521,7 @@ var ts;
                 return undefined;
             }
             var moduleReference = ts.createExpressionFromEntityName(node.moduleReference);
-            ts.setEmitFlags(moduleReference, 49152 /* NoComments */ | 65536 /* NoNestedComments */);
+            ts.setEmitFlags(moduleReference, 1536 /* NoComments */ | 2048 /* NoNestedComments */);
             if (isNamedExternalModuleExport(node) || !isNamespaceExport(node)) {
                 //  export var ${name} = ${moduleReference};
                 //  var ${name} = ${moduleReference};
@@ -47602,10 +47739,10 @@ var ts;
                     if (declaration) {
                         var classAlias = classAliases[declaration.id];
                         if (classAlias) {
-                            var clone_4 = ts.getSynthesizedClone(classAlias);
-                            ts.setSourceMapRange(clone_4, node);
-                            ts.setCommentRange(clone_4, node);
-                            return clone_4;
+                            var clone_2 = ts.getSynthesizedClone(classAlias);
+                            ts.setSourceMapRange(clone_2, node);
+                            ts.setCommentRange(clone_2, node);
+                            return clone_2;
                         }
                     }
                 }
@@ -47614,7 +47751,7 @@ var ts;
         }
         function trySubstituteNamespaceExportedName(node) {
             // If this is explicitly a local name, do not substitute.
-            if (enabledSubstitutions & applicableSubstitutions && !ts.isLocalName(node)) {
+            if (enabledSubstitutions & applicableSubstitutions && !ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 // If we are nested within a namespace declaration, we may need to qualifiy
                 // an identifier that is exported from a merged namespace.
                 var container = resolver.getReferencedExportContainer(node, /*prefixLocals*/ false);
@@ -47661,13 +47798,335 @@ var ts;
         }
     }
     ts.transformTypeScript = transformTypeScript;
+    var paramHelper = {
+        name: "typescript:param",
+        scoped: false,
+        priority: 4,
+        text: "\n            var __param = (this && this.__param) || function (paramIndex, decorator) {\n                return function (target, key) { decorator(target, key, paramIndex); }\n            };"
+    };
+    function createParamHelper(context, expression, parameterOffset, location) {
+        context.requestEmitHelper(paramHelper);
+        return ts.createCall(ts.getHelperName("__param"), 
+        /*typeArguments*/ undefined, [
+            ts.createLiteral(parameterOffset),
+            expression
+        ], location);
+    }
+    var metadataHelper = {
+        name: "typescript:metadata",
+        scoped: false,
+        priority: 3,
+        text: "\n            var __metadata = (this && this.__metadata) || function (k, v) {\n                if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n            };"
+    };
+    function createMetadataHelper(context, metadataKey, metadataValue) {
+        context.requestEmitHelper(metadataHelper);
+        return ts.createCall(ts.getHelperName("__metadata"), 
+        /*typeArguments*/ undefined, [
+            ts.createLiteral(metadataKey),
+            metadataValue
+        ]);
+    }
+    var decorateHelper = {
+        name: "typescript:decorate",
+        scoped: false,
+        priority: 2,
+        text: "\n            var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n                var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n                if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n                else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n                return c > 3 && r && Object.defineProperty(target, key, r), r;\n            };"
+    };
+    function createDecorateHelper(context, decoratorExpressions, target, memberName, descriptor, location) {
+        context.requestEmitHelper(decorateHelper);
+        var argumentsArray = [];
+        argumentsArray.push(ts.createArrayLiteral(decoratorExpressions, /*location*/ undefined, /*multiLine*/ true));
+        argumentsArray.push(target);
+        if (memberName) {
+            argumentsArray.push(memberName);
+            if (descriptor) {
+                argumentsArray.push(descriptor);
+            }
+        }
+        return ts.createCall(ts.getHelperName("__decorate"), /*typeArguments*/ undefined, argumentsArray, location);
+    }
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
 /*@internal*/
 var ts;
 (function (ts) {
-    var entities = createEntitiesMap();
+    function transformESNext(context) {
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        return transformSourceFile;
+        function transformSourceFile(node) {
+            if (ts.isDeclarationFile(node)) {
+                return node;
+            }
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            return visited;
+        }
+        function visitor(node) {
+            return visitorWorker(node, /*noDestructuringValue*/ false);
+        }
+        function visitorNoDestructuringValue(node) {
+            return visitorWorker(node, /*noDestructuringValue*/ true);
+        }
+        function visitorWorker(node, noDestructuringValue) {
+            if ((node.transformFlags & 8 /* ContainsESNext */) === 0) {
+                return node;
+            }
+            switch (node.kind) {
+                case 176 /* ObjectLiteralExpression */:
+                    return visitObjectLiteralExpression(node);
+                case 192 /* BinaryExpression */:
+                    return visitBinaryExpression(node, noDestructuringValue);
+                case 223 /* VariableDeclaration */:
+                    return visitVariableDeclaration(node);
+                case 213 /* ForOfStatement */:
+                    return visitForOfStatement(node);
+                case 211 /* ForStatement */:
+                    return visitForStatement(node);
+                case 188 /* VoidExpression */:
+                    return visitVoidExpression(node);
+                case 150 /* Constructor */:
+                    return visitConstructorDeclaration(node);
+                case 149 /* MethodDeclaration */:
+                    return visitMethodDeclaration(node);
+                case 151 /* GetAccessor */:
+                    return visitGetAccessorDeclaration(node);
+                case 152 /* SetAccessor */:
+                    return visitSetAccessorDeclaration(node);
+                case 225 /* FunctionDeclaration */:
+                    return visitFunctionDeclaration(node);
+                case 184 /* FunctionExpression */:
+                    return visitFunctionExpression(node);
+                case 185 /* ArrowFunction */:
+                    return visitArrowFunction(node);
+                case 144 /* Parameter */:
+                    return visitParameter(node);
+                case 207 /* ExpressionStatement */:
+                    return visitExpressionStatement(node);
+                case 183 /* ParenthesizedExpression */:
+                    return visitParenthesizedExpression(node, noDestructuringValue);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function chunkObjectLiteralElements(elements) {
+            var chunkObject;
+            var objects = [];
+            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
+                var e = elements_3[_i];
+                if (e.kind === 259 /* SpreadAssignment */) {
+                    if (chunkObject) {
+                        objects.push(ts.createObjectLiteral(chunkObject));
+                        chunkObject = undefined;
+                    }
+                    var target = e.expression;
+                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
+                }
+                else {
+                    if (!chunkObject) {
+                        chunkObject = [];
+                    }
+                    if (e.kind === 257 /* PropertyAssignment */) {
+                        var p = e;
+                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
+                    }
+                    else {
+                        chunkObject.push(e);
+                    }
+                }
+            }
+            if (chunkObject) {
+                objects.push(ts.createObjectLiteral(chunkObject));
+            }
+            return objects;
+        }
+        function visitObjectLiteralExpression(node) {
+            if (node.transformFlags & 1048576 /* ContainsObjectSpread */) {
+                // spread elements emit like so:
+                // non-spread elements are chunked together into object literals, and then all are passed to __assign:
+                //     { a, ...o, b } => __assign({a}, o, {b});
+                // If the first element is a spread element, then the first argument to __assign is {}:
+                //     { ...o, a, b, ...o2 } => __assign({}, o, {a, b}, o2)
+                var objects = chunkObjectLiteralElements(node.properties);
+                if (objects.length && objects[0].kind !== 176 /* ObjectLiteralExpression */) {
+                    objects.unshift(ts.createObjectLiteral());
+                }
+                return createAssignHelper(context, objects);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitExpressionStatement(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        function visitParenthesizedExpression(node, noDestructuringValue) {
+            return ts.visitEachChild(node, noDestructuringValue ? visitorNoDestructuringValue : visitor, context);
+        }
+        /**
+         * Visits a BinaryExpression that contains a destructuring assignment.
+         *
+         * @param node A BinaryExpression node.
+         */
+        function visitBinaryExpression(node, noDestructuringValue) {
+            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 1048576 /* ContainsObjectRest */) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 1 /* ObjectRest */, !noDestructuringValue);
+            }
+            else if (node.operatorToken.kind === 25 /* CommaToken */) {
+                return ts.updateBinary(node, ts.visitNode(node.left, visitorNoDestructuringValue, ts.isExpression), ts.visitNode(node.right, noDestructuringValue ? visitorNoDestructuringValue : visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        /**
+         * Visits a VariableDeclaration node with a binding pattern.
+         *
+         * @param node A VariableDeclaration node.
+         */
+        function visitVariableDeclaration(node) {
+            // If we are here it is because the name contains a binding pattern with a rest somewhere in it.
+            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 1048576 /* ContainsObjectRest */) {
+                return ts.flattenDestructuringBinding(node, visitor, context, 1 /* ObjectRest */);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitForStatement(node) {
+            return ts.updateFor(node, ts.visitNode(node.initializer, visitorNoDestructuringValue, ts.isForInitializer), ts.visitNode(node.condition, visitor, ts.isExpression), ts.visitNode(node.incrementor, visitor, ts.isExpression), ts.visitNode(node.statement, visitor, ts.isStatement));
+        }
+        function visitVoidExpression(node) {
+            return ts.visitEachChild(node, visitorNoDestructuringValue, context);
+        }
+        /**
+         * Visits a ForOfStatement and converts it into a ES2015-compatible ForOfStatement.
+         *
+         * @param node A ForOfStatement.
+         */
+        function visitForOfStatement(node) {
+            var leadingStatements;
+            var temp;
+            var initializer = ts.skipParentheses(node.initializer);
+            if (initializer.transformFlags & 1048576 /* ContainsObjectRest */) {
+                if (ts.isVariableDeclarationList(initializer)) {
+                    temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    var firstDeclaration = ts.firstOrUndefined(initializer.declarations);
+                    var declarations = ts.flattenDestructuringBinding(firstDeclaration, visitor, context, 1 /* ObjectRest */, temp, 
+                    /*doNotRecordTempVariablesInLine*/ false, 
+                    /*skipInitializer*/ true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(
+                        /*modifiers*/ undefined, ts.updateVariableDeclarationList(initializer, declarations), 
+                        /*location*/ initializer);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+                else if (ts.isAssignmentPattern(initializer)) {
+                    temp = ts.createTempVariable(/*recordTempVariable*/ undefined);
+                    var expression = ts.flattenDestructuringAssignment(ts.aggregateTransformFlags(ts.createAssignment(initializer, temp, /*location*/ node.initializer)), visitor, context, 1 /* ObjectRest */);
+                    leadingStatements = ts.append(leadingStatements, ts.createStatement(expression, /*location*/ node.initializer));
+                }
+            }
+            if (temp) {
+                var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                var block = ts.isBlock(statement)
+                    ? ts.updateBlock(statement, ts.createNodeArray(ts.concatenate(leadingStatements, statement.statements), statement.statements))
+                    : ts.createBlock(ts.append(leadingStatements, statement), statement, /*multiLine*/ true);
+                return ts.updateForOf(node, ts.createVariableDeclarationList([
+                    ts.createVariableDeclaration(temp, /*type*/ undefined, /*initializer*/ undefined, node.initializer)
+                ], node.initializer, 1 /* Let */), expression, block);
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitParameter(node) {
+            if (node.transformFlags & 1048576 /* ContainsObjectRest */) {
+                // Binding patterns are converted into a generated name and are
+                // evaluated inside the function body.
+                return ts.updateParameter(node, 
+                /*decorators*/ undefined, 
+                /*modifiers*/ undefined, node.dotDotDotToken, ts.getGeneratedNameForNode(node), 
+                /*type*/ undefined, ts.visitNode(node.initializer, visitor, ts.isExpression));
+            }
+            return ts.visitEachChild(node, visitor, context);
+        }
+        function visitConstructorDeclaration(node) {
+            return ts.updateConstructor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitGetAccessorDeclaration(node) {
+            return ts.updateGetAccessor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitSetAccessorDeclaration(node) {
+            return ts.updateSetAccessor(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), ts.visitParameterList(node.parameters, visitor, context), transformFunctionBody(node));
+        }
+        function visitMethodDeclaration(node) {
+            return ts.updateMethod(node, 
+            /*decorators*/ undefined, node.modifiers, ts.visitNode(node.name, visitor, ts.isPropertyName), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitFunctionDeclaration(node) {
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitArrowFunction(node) {
+            return ts.updateArrowFunction(node, node.modifiers, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function visitFunctionExpression(node) {
+            return ts.updateFunctionExpression(node, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node));
+        }
+        function transformFunctionBody(node) {
+            resumeLexicalEnvironment();
+            var leadingStatements;
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                if (parameter.transformFlags & 1048576 /* ContainsObjectRest */) {
+                    var temp = ts.getGeneratedNameForNode(parameter);
+                    var declarations = ts.flattenDestructuringBinding(parameter, visitor, context, 1 /* ObjectRest */, temp, 
+                    /*doNotRecordTempVariablesInLine*/ false, 
+                    /*skipInitializer*/ true);
+                    if (ts.some(declarations)) {
+                        var statement = ts.createVariableStatement(
+                        /*modifiers*/ undefined, ts.createVariableDeclarationList(declarations));
+                        ts.setEmitFlags(statement, 524288 /* CustomPrologue */);
+                        leadingStatements = ts.append(leadingStatements, statement);
+                    }
+                }
+            }
+            var body = ts.visitNode(node.body, visitor, ts.isConciseBody);
+            var trailingStatements = endLexicalEnvironment();
+            if (ts.some(leadingStatements) || ts.some(trailingStatements)) {
+                var block = ts.convertToFunctionBody(body, /*multiLine*/ true);
+                return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(ts.concatenate(leadingStatements, block.statements), trailingStatements), block.statements));
+            }
+            return body;
+        }
+    }
+    ts.transformESNext = transformESNext;
+    var assignHelper = {
+        name: "typescript:assign",
+        scoped: false,
+        priority: 1,
+        text: "\n            var __assign = (this && this.__assign) || Object.assign || function(t) {\n                for (var s, i = 1, n = arguments.length; i < n; i++) {\n                    s = arguments[i];\n                    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                        t[p] = s[p];\n                }\n                return t;\n            };"
+    };
+    function createAssignHelper(context, attributesSegments) {
+        context.requestEmitHelper(assignHelper);
+        return ts.createCall(ts.getHelperName("__assign"), 
+        /*typeArguments*/ undefined, attributesSegments);
+    }
+    ts.createAssignHelper = createAssignHelper;
+})(ts || (ts = {}));
+/// <reference path="../factory.ts" />
+/// <reference path="../visitor.ts" />
+/// <reference path="./esnext.ts" />
+/*@internal*/
+var ts;
+(function (ts) {
     function transformJsx(context) {
         var compilerOptions = context.getCompilerOptions();
         var currentSourceFile;
@@ -47682,17 +48141,15 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            node = ts.visitEachChild(node, visitor, context);
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
             currentSourceFile = undefined;
-            return node;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 4 /* Jsx */) {
+            if (node.transformFlags & 4 /* ContainsJsx */) {
                 return visitorWorker(node);
             }
-            else if (node.transformFlags & 8 /* ContainsJsx */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
             else {
                 return node;
             }
@@ -47706,8 +48163,7 @@ var ts;
                 case 252 /* JsxExpression */:
                     return visitJsxExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return undefined;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         function transformJsxChildToExpression(node) {
@@ -47752,8 +48208,10 @@ var ts;
                 }
                 // Either emit one big object literal (no spread attribs), or
                 // a call to the __assign helper.
-                objectProperties = ts.singleOrUndefined(segments)
-                    || ts.createAssignHelper(currentSourceFile.externalHelpersModuleName, segments);
+                objectProperties = ts.singleOrUndefined(segments);
+                if (!objectProperties) {
+                    objectProperties = ts.createAssignHelper(context, segments);
+                }
             }
             var element = ts.createExpressionForJsxElement(context.getEmitResolver().getJsxFactoryEntity(), compilerOptions.reactNamespace, tagName, objectProperties, ts.filter(ts.map(children, transformJsxChildToExpression), ts.isDefined), node, location);
             if (isChild) {
@@ -47891,519 +48349,285 @@ var ts;
         }
     }
     ts.transformJsx = transformJsx;
-    function createEntitiesMap() {
-        return ts.createMap({
-            "quot": 0x0022,
-            "amp": 0x0026,
-            "apos": 0x0027,
-            "lt": 0x003C,
-            "gt": 0x003E,
-            "nbsp": 0x00A0,
-            "iexcl": 0x00A1,
-            "cent": 0x00A2,
-            "pound": 0x00A3,
-            "curren": 0x00A4,
-            "yen": 0x00A5,
-            "brvbar": 0x00A6,
-            "sect": 0x00A7,
-            "uml": 0x00A8,
-            "copy": 0x00A9,
-            "ordf": 0x00AA,
-            "laquo": 0x00AB,
-            "not": 0x00AC,
-            "shy": 0x00AD,
-            "reg": 0x00AE,
-            "macr": 0x00AF,
-            "deg": 0x00B0,
-            "plusmn": 0x00B1,
-            "sup2": 0x00B2,
-            "sup3": 0x00B3,
-            "acute": 0x00B4,
-            "micro": 0x00B5,
-            "para": 0x00B6,
-            "middot": 0x00B7,
-            "cedil": 0x00B8,
-            "sup1": 0x00B9,
-            "ordm": 0x00BA,
-            "raquo": 0x00BB,
-            "frac14": 0x00BC,
-            "frac12": 0x00BD,
-            "frac34": 0x00BE,
-            "iquest": 0x00BF,
-            "Agrave": 0x00C0,
-            "Aacute": 0x00C1,
-            "Acirc": 0x00C2,
-            "Atilde": 0x00C3,
-            "Auml": 0x00C4,
-            "Aring": 0x00C5,
-            "AElig": 0x00C6,
-            "Ccedil": 0x00C7,
-            "Egrave": 0x00C8,
-            "Eacute": 0x00C9,
-            "Ecirc": 0x00CA,
-            "Euml": 0x00CB,
-            "Igrave": 0x00CC,
-            "Iacute": 0x00CD,
-            "Icirc": 0x00CE,
-            "Iuml": 0x00CF,
-            "ETH": 0x00D0,
-            "Ntilde": 0x00D1,
-            "Ograve": 0x00D2,
-            "Oacute": 0x00D3,
-            "Ocirc": 0x00D4,
-            "Otilde": 0x00D5,
-            "Ouml": 0x00D6,
-            "times": 0x00D7,
-            "Oslash": 0x00D8,
-            "Ugrave": 0x00D9,
-            "Uacute": 0x00DA,
-            "Ucirc": 0x00DB,
-            "Uuml": 0x00DC,
-            "Yacute": 0x00DD,
-            "THORN": 0x00DE,
-            "szlig": 0x00DF,
-            "agrave": 0x00E0,
-            "aacute": 0x00E1,
-            "acirc": 0x00E2,
-            "atilde": 0x00E3,
-            "auml": 0x00E4,
-            "aring": 0x00E5,
-            "aelig": 0x00E6,
-            "ccedil": 0x00E7,
-            "egrave": 0x00E8,
-            "eacute": 0x00E9,
-            "ecirc": 0x00EA,
-            "euml": 0x00EB,
-            "igrave": 0x00EC,
-            "iacute": 0x00ED,
-            "icirc": 0x00EE,
-            "iuml": 0x00EF,
-            "eth": 0x00F0,
-            "ntilde": 0x00F1,
-            "ograve": 0x00F2,
-            "oacute": 0x00F3,
-            "ocirc": 0x00F4,
-            "otilde": 0x00F5,
-            "ouml": 0x00F6,
-            "divide": 0x00F7,
-            "oslash": 0x00F8,
-            "ugrave": 0x00F9,
-            "uacute": 0x00FA,
-            "ucirc": 0x00FB,
-            "uuml": 0x00FC,
-            "yacute": 0x00FD,
-            "thorn": 0x00FE,
-            "yuml": 0x00FF,
-            "OElig": 0x0152,
-            "oelig": 0x0153,
-            "Scaron": 0x0160,
-            "scaron": 0x0161,
-            "Yuml": 0x0178,
-            "fnof": 0x0192,
-            "circ": 0x02C6,
-            "tilde": 0x02DC,
-            "Alpha": 0x0391,
-            "Beta": 0x0392,
-            "Gamma": 0x0393,
-            "Delta": 0x0394,
-            "Epsilon": 0x0395,
-            "Zeta": 0x0396,
-            "Eta": 0x0397,
-            "Theta": 0x0398,
-            "Iota": 0x0399,
-            "Kappa": 0x039A,
-            "Lambda": 0x039B,
-            "Mu": 0x039C,
-            "Nu": 0x039D,
-            "Xi": 0x039E,
-            "Omicron": 0x039F,
-            "Pi": 0x03A0,
-            "Rho": 0x03A1,
-            "Sigma": 0x03A3,
-            "Tau": 0x03A4,
-            "Upsilon": 0x03A5,
-            "Phi": 0x03A6,
-            "Chi": 0x03A7,
-            "Psi": 0x03A8,
-            "Omega": 0x03A9,
-            "alpha": 0x03B1,
-            "beta": 0x03B2,
-            "gamma": 0x03B3,
-            "delta": 0x03B4,
-            "epsilon": 0x03B5,
-            "zeta": 0x03B6,
-            "eta": 0x03B7,
-            "theta": 0x03B8,
-            "iota": 0x03B9,
-            "kappa": 0x03BA,
-            "lambda": 0x03BB,
-            "mu": 0x03BC,
-            "nu": 0x03BD,
-            "xi": 0x03BE,
-            "omicron": 0x03BF,
-            "pi": 0x03C0,
-            "rho": 0x03C1,
-            "sigmaf": 0x03C2,
-            "sigma": 0x03C3,
-            "tau": 0x03C4,
-            "upsilon": 0x03C5,
-            "phi": 0x03C6,
-            "chi": 0x03C7,
-            "psi": 0x03C8,
-            "omega": 0x03C9,
-            "thetasym": 0x03D1,
-            "upsih": 0x03D2,
-            "piv": 0x03D6,
-            "ensp": 0x2002,
-            "emsp": 0x2003,
-            "thinsp": 0x2009,
-            "zwnj": 0x200C,
-            "zwj": 0x200D,
-            "lrm": 0x200E,
-            "rlm": 0x200F,
-            "ndash": 0x2013,
-            "mdash": 0x2014,
-            "lsquo": 0x2018,
-            "rsquo": 0x2019,
-            "sbquo": 0x201A,
-            "ldquo": 0x201C,
-            "rdquo": 0x201D,
-            "bdquo": 0x201E,
-            "dagger": 0x2020,
-            "Dagger": 0x2021,
-            "bull": 0x2022,
-            "hellip": 0x2026,
-            "permil": 0x2030,
-            "prime": 0x2032,
-            "Prime": 0x2033,
-            "lsaquo": 0x2039,
-            "rsaquo": 0x203A,
-            "oline": 0x203E,
-            "frasl": 0x2044,
-            "euro": 0x20AC,
-            "image": 0x2111,
-            "weierp": 0x2118,
-            "real": 0x211C,
-            "trade": 0x2122,
-            "alefsym": 0x2135,
-            "larr": 0x2190,
-            "uarr": 0x2191,
-            "rarr": 0x2192,
-            "darr": 0x2193,
-            "harr": 0x2194,
-            "crarr": 0x21B5,
-            "lArr": 0x21D0,
-            "uArr": 0x21D1,
-            "rArr": 0x21D2,
-            "dArr": 0x21D3,
-            "hArr": 0x21D4,
-            "forall": 0x2200,
-            "part": 0x2202,
-            "exist": 0x2203,
-            "empty": 0x2205,
-            "nabla": 0x2207,
-            "isin": 0x2208,
-            "notin": 0x2209,
-            "ni": 0x220B,
-            "prod": 0x220F,
-            "sum": 0x2211,
-            "minus": 0x2212,
-            "lowast": 0x2217,
-            "radic": 0x221A,
-            "prop": 0x221D,
-            "infin": 0x221E,
-            "ang": 0x2220,
-            "and": 0x2227,
-            "or": 0x2228,
-            "cap": 0x2229,
-            "cup": 0x222A,
-            "int": 0x222B,
-            "there4": 0x2234,
-            "sim": 0x223C,
-            "cong": 0x2245,
-            "asymp": 0x2248,
-            "ne": 0x2260,
-            "equiv": 0x2261,
-            "le": 0x2264,
-            "ge": 0x2265,
-            "sub": 0x2282,
-            "sup": 0x2283,
-            "nsub": 0x2284,
-            "sube": 0x2286,
-            "supe": 0x2287,
-            "oplus": 0x2295,
-            "otimes": 0x2297,
-            "perp": 0x22A5,
-            "sdot": 0x22C5,
-            "lceil": 0x2308,
-            "rceil": 0x2309,
-            "lfloor": 0x230A,
-            "rfloor": 0x230B,
-            "lang": 0x2329,
-            "rang": 0x232A,
-            "loz": 0x25CA,
-            "spades": 0x2660,
-            "clubs": 0x2663,
-            "hearts": 0x2665,
-            "diams": 0x2666
-        });
-    }
-})(ts || (ts = {}));
-/// <reference path="../factory.ts" />
-/// <reference path="../visitor.ts" />
-/*@internal*/
-var ts;
-(function (ts) {
-    function transformESNext(context) {
-        var hoistVariableDeclaration = context.hoistVariableDeclaration;
-        var currentSourceFile;
-        return transformSourceFile;
-        function transformSourceFile(node) {
-            currentSourceFile = node;
-            return ts.visitEachChild(node, visitor, context);
-        }
-        function visitor(node) {
-            if (node.transformFlags & 16 /* ESNext */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 32 /* ContainsESNext */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
-                return node;
-            }
-        }
-        function visitorWorker(node) {
-            switch (node.kind) {
-                case 176 /* ObjectLiteralExpression */:
-                    return visitObjectLiteralExpression(node);
-                case 192 /* BinaryExpression */:
-                    return visitBinaryExpression(node);
-                case 223 /* VariableDeclaration */:
-                    return visitVariableDeclaration(node);
-                case 213 /* ForOfStatement */:
-                    return visitForOfStatement(node);
-                case 172 /* ObjectBindingPattern */:
-                case 173 /* ArrayBindingPattern */:
-                    return node;
-                case 225 /* FunctionDeclaration */:
-                    return visitFunctionDeclaration(node);
-                case 184 /* FunctionExpression */:
-                    return visitFunctionExpression(node);
-                case 185 /* ArrowFunction */:
-                    return visitArrowFunction(node);
-                case 144 /* Parameter */:
-                    return visitParameter(node);
-                default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return ts.visitEachChild(node, visitor, context);
-            }
-        }
-        function chunkObjectLiteralElements(elements) {
-            var chunkObject;
-            var objects = [];
-            for (var _i = 0, elements_3 = elements; _i < elements_3.length; _i++) {
-                var e = elements_3[_i];
-                if (e.kind === 259 /* SpreadAssignment */) {
-                    if (chunkObject) {
-                        objects.push(ts.createObjectLiteral(chunkObject));
-                        chunkObject = undefined;
-                    }
-                    var target = e.expression;
-                    objects.push(ts.visitNode(target, visitor, ts.isExpression));
-                }
-                else {
-                    if (!chunkObject) {
-                        chunkObject = [];
-                    }
-                    if (e.kind === 257 /* PropertyAssignment */) {
-                        var p = e;
-                        chunkObject.push(ts.createPropertyAssignment(p.name, ts.visitNode(p.initializer, visitor, ts.isExpression)));
-                    }
-                    else {
-                        chunkObject.push(e);
-                    }
-                }
-            }
-            if (chunkObject) {
-                objects.push(ts.createObjectLiteral(chunkObject));
-            }
-            return objects;
-        }
-        function visitObjectLiteralExpression(node) {
-            // spread elements emit like so:
-            // non-spread elements are chunked together into object literals, and then all are passed to __assign:
-            //     { a, ...o, b } => __assign({a}, o, {b});
-            // If the first element is a spread element, then the first argument to __assign is {}:
-            //     { ...o, a, b, ...o2 } => __assign({}, o, {a, b}, o2)
-            if (ts.forEach(node.properties, function (p) { return p.kind === 259 /* SpreadAssignment */; })) {
-                var objects = chunkObjectLiteralElements(node.properties);
-                if (objects.length && objects[0].kind !== 176 /* ObjectLiteralExpression */) {
-                    objects.unshift(ts.createObjectLiteral());
-                }
-                return ts.aggregateTransformFlags(ts.createCall(ts.createIdentifier("__assign"), undefined, objects));
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a BinaryExpression that contains a destructuring assignment.
-         *
-         * @param node A BinaryExpression node.
-         */
-        function visitBinaryExpression(node) {
-            if (ts.isDestructuringAssignment(node) && node.left.transformFlags & 48 /* AssertESNext */) {
-                return ts.flattenDestructuringAssignment(context, node, /*needsDestructuringValue*/ true, hoistVariableDeclaration, visitor, /*transformRest*/ true);
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a VariableDeclaration node with a binding pattern.
-         *
-         * @param node A VariableDeclaration node.
-         */
-        function visitVariableDeclaration(node) {
-            // If we are here it is because the name contains a binding pattern with a rest somewhere in it.
-            if (ts.isBindingPattern(node.name) && node.name.transformFlags & 48 /* AssertESNext */) {
-                var result = ts.flattenVariableDestructuring(node, /*value*/ undefined, visitor, /*recordTempVariable*/ undefined, /*transformRest*/ true);
-                return result;
-            }
-            return ts.visitEachChild(node, visitor, context);
-        }
-        /**
-         * Visits a ForOfStatement and converts it into a ES2015-compatible ForOfStatement.
-         *
-         * @param node A ForOfStatement.
-         */
-        function visitForOfStatement(node) {
-            // The following ESNext code:
-            //
-            //    for (let { x, y, ...rest } of expr) { }
-            //
-            // should be emitted as
-            //
-            //    for (var _a of expr) {
-            //        let { x, y } = _a, rest = __rest(_a, ["x", "y"]);
-            //    }
-            //
-            // where _a is a temp emitted to capture the RHS.
-            // When the left hand side is an expression instead of a let declaration,
-            // the `let` before the `{ x, y }` is not emitted.
-            // When the left hand side is a let/const, the v is renamed if there is
-            // another v in scope.
-            // Note that all assignments to the LHS are emitted in the body, including
-            // all destructuring.
-            // Note also that because an extra statement is needed to assign to the LHS,
-            // for-of bodies are always emitted as blocks.
-            // for (<init> of <expression>) <statement>
-            // where <init> is [let] variabledeclarationlist | expression
-            var initializer = node.initializer;
-            if (!isRestBindingPattern(initializer) && !isRestAssignment(initializer)) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            return ts.convertForOf(node, undefined, visitor, ts.noop, context, /*transformRest*/ true);
-        }
-        function isRestBindingPattern(initializer) {
-            if (ts.isVariableDeclarationList(initializer)) {
-                var declaration = ts.firstOrUndefined(initializer.declarations);
-                return declaration && declaration.name &&
-                    declaration.name.kind === 172 /* ObjectBindingPattern */ &&
-                    !!(declaration.name.transformFlags & 8388608 /* ContainsSpreadExpression */);
-            }
-            return false;
-        }
-        function isRestAssignment(initializer) {
-            return initializer.kind === 176 /* ObjectLiteralExpression */ &&
-                initializer.transformFlags & 8388608 /* ContainsSpreadExpression */;
-        }
-        function visitParameter(node) {
-            if (isObjectRestParameter(node)) {
-                // Binding patterns are converted into a generated name and are
-                // evaluated inside the function body.
-                return ts.setOriginalNode(ts.createParameter(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, 
-                /*dotDotDotToken*/ undefined, ts.getGeneratedNameForNode(node), 
-                /*questionToken*/ undefined, 
-                /*type*/ undefined, node.initializer, 
-                /*location*/ node), 
-                /*original*/ node);
-            }
-            else {
-                return node;
-            }
-        }
-        function isObjectRestParameter(node) {
-            return node.name &&
-                node.name.kind === 172 /* ObjectBindingPattern */ &&
-                !!(node.name.transformFlags & 8388608 /* ContainsSpreadExpression */);
-        }
-        function visitFunctionDeclaration(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionDeclaration(
-            /*decorators*/ undefined, node.modifiers, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, body, 
-            /*location*/ node), 
-            /*original*/ node);
-        }
-        function visitArrowFunction(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            var func = ts.setOriginalNode(ts.createArrowFunction(node.modifiers, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, body, 
-            /*location*/ node), 
-            /*original*/ node);
-            ts.setEmitFlags(func, 256 /* CapturesThis */);
-            return func;
-        }
-        function visitFunctionExpression(node) {
-            var hasRest = ts.forEach(node.parameters, isObjectRestParameter);
-            var body = hasRest ?
-                ts.transformFunctionBody(node, visitor, currentSourceFile, context, ts.noop, /*convertObjectRest*/ true) :
-                ts.visitEachChild(node.body, visitor, context);
-            return ts.setOriginalNode(ts.createFunctionExpression(node.modifiers, node.asteriskToken, name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, body, 
-            /*location*/ node), 
-            /*original*/ node);
-        }
-    }
-    ts.transformESNext = transformESNext;
+    var entities = ts.createMap({
+        "quot": 0x0022,
+        "amp": 0x0026,
+        "apos": 0x0027,
+        "lt": 0x003C,
+        "gt": 0x003E,
+        "nbsp": 0x00A0,
+        "iexcl": 0x00A1,
+        "cent": 0x00A2,
+        "pound": 0x00A3,
+        "curren": 0x00A4,
+        "yen": 0x00A5,
+        "brvbar": 0x00A6,
+        "sect": 0x00A7,
+        "uml": 0x00A8,
+        "copy": 0x00A9,
+        "ordf": 0x00AA,
+        "laquo": 0x00AB,
+        "not": 0x00AC,
+        "shy": 0x00AD,
+        "reg": 0x00AE,
+        "macr": 0x00AF,
+        "deg": 0x00B0,
+        "plusmn": 0x00B1,
+        "sup2": 0x00B2,
+        "sup3": 0x00B3,
+        "acute": 0x00B4,
+        "micro": 0x00B5,
+        "para": 0x00B6,
+        "middot": 0x00B7,
+        "cedil": 0x00B8,
+        "sup1": 0x00B9,
+        "ordm": 0x00BA,
+        "raquo": 0x00BB,
+        "frac14": 0x00BC,
+        "frac12": 0x00BD,
+        "frac34": 0x00BE,
+        "iquest": 0x00BF,
+        "Agrave": 0x00C0,
+        "Aacute": 0x00C1,
+        "Acirc": 0x00C2,
+        "Atilde": 0x00C3,
+        "Auml": 0x00C4,
+        "Aring": 0x00C5,
+        "AElig": 0x00C6,
+        "Ccedil": 0x00C7,
+        "Egrave": 0x00C8,
+        "Eacute": 0x00C9,
+        "Ecirc": 0x00CA,
+        "Euml": 0x00CB,
+        "Igrave": 0x00CC,
+        "Iacute": 0x00CD,
+        "Icirc": 0x00CE,
+        "Iuml": 0x00CF,
+        "ETH": 0x00D0,
+        "Ntilde": 0x00D1,
+        "Ograve": 0x00D2,
+        "Oacute": 0x00D3,
+        "Ocirc": 0x00D4,
+        "Otilde": 0x00D5,
+        "Ouml": 0x00D6,
+        "times": 0x00D7,
+        "Oslash": 0x00D8,
+        "Ugrave": 0x00D9,
+        "Uacute": 0x00DA,
+        "Ucirc": 0x00DB,
+        "Uuml": 0x00DC,
+        "Yacute": 0x00DD,
+        "THORN": 0x00DE,
+        "szlig": 0x00DF,
+        "agrave": 0x00E0,
+        "aacute": 0x00E1,
+        "acirc": 0x00E2,
+        "atilde": 0x00E3,
+        "auml": 0x00E4,
+        "aring": 0x00E5,
+        "aelig": 0x00E6,
+        "ccedil": 0x00E7,
+        "egrave": 0x00E8,
+        "eacute": 0x00E9,
+        "ecirc": 0x00EA,
+        "euml": 0x00EB,
+        "igrave": 0x00EC,
+        "iacute": 0x00ED,
+        "icirc": 0x00EE,
+        "iuml": 0x00EF,
+        "eth": 0x00F0,
+        "ntilde": 0x00F1,
+        "ograve": 0x00F2,
+        "oacute": 0x00F3,
+        "ocirc": 0x00F4,
+        "otilde": 0x00F5,
+        "ouml": 0x00F6,
+        "divide": 0x00F7,
+        "oslash": 0x00F8,
+        "ugrave": 0x00F9,
+        "uacute": 0x00FA,
+        "ucirc": 0x00FB,
+        "uuml": 0x00FC,
+        "yacute": 0x00FD,
+        "thorn": 0x00FE,
+        "yuml": 0x00FF,
+        "OElig": 0x0152,
+        "oelig": 0x0153,
+        "Scaron": 0x0160,
+        "scaron": 0x0161,
+        "Yuml": 0x0178,
+        "fnof": 0x0192,
+        "circ": 0x02C6,
+        "tilde": 0x02DC,
+        "Alpha": 0x0391,
+        "Beta": 0x0392,
+        "Gamma": 0x0393,
+        "Delta": 0x0394,
+        "Epsilon": 0x0395,
+        "Zeta": 0x0396,
+        "Eta": 0x0397,
+        "Theta": 0x0398,
+        "Iota": 0x0399,
+        "Kappa": 0x039A,
+        "Lambda": 0x039B,
+        "Mu": 0x039C,
+        "Nu": 0x039D,
+        "Xi": 0x039E,
+        "Omicron": 0x039F,
+        "Pi": 0x03A0,
+        "Rho": 0x03A1,
+        "Sigma": 0x03A3,
+        "Tau": 0x03A4,
+        "Upsilon": 0x03A5,
+        "Phi": 0x03A6,
+        "Chi": 0x03A7,
+        "Psi": 0x03A8,
+        "Omega": 0x03A9,
+        "alpha": 0x03B1,
+        "beta": 0x03B2,
+        "gamma": 0x03B3,
+        "delta": 0x03B4,
+        "epsilon": 0x03B5,
+        "zeta": 0x03B6,
+        "eta": 0x03B7,
+        "theta": 0x03B8,
+        "iota": 0x03B9,
+        "kappa": 0x03BA,
+        "lambda": 0x03BB,
+        "mu": 0x03BC,
+        "nu": 0x03BD,
+        "xi": 0x03BE,
+        "omicron": 0x03BF,
+        "pi": 0x03C0,
+        "rho": 0x03C1,
+        "sigmaf": 0x03C2,
+        "sigma": 0x03C3,
+        "tau": 0x03C4,
+        "upsilon": 0x03C5,
+        "phi": 0x03C6,
+        "chi": 0x03C7,
+        "psi": 0x03C8,
+        "omega": 0x03C9,
+        "thetasym": 0x03D1,
+        "upsih": 0x03D2,
+        "piv": 0x03D6,
+        "ensp": 0x2002,
+        "emsp": 0x2003,
+        "thinsp": 0x2009,
+        "zwnj": 0x200C,
+        "zwj": 0x200D,
+        "lrm": 0x200E,
+        "rlm": 0x200F,
+        "ndash": 0x2013,
+        "mdash": 0x2014,
+        "lsquo": 0x2018,
+        "rsquo": 0x2019,
+        "sbquo": 0x201A,
+        "ldquo": 0x201C,
+        "rdquo": 0x201D,
+        "bdquo": 0x201E,
+        "dagger": 0x2020,
+        "Dagger": 0x2021,
+        "bull": 0x2022,
+        "hellip": 0x2026,
+        "permil": 0x2030,
+        "prime": 0x2032,
+        "Prime": 0x2033,
+        "lsaquo": 0x2039,
+        "rsaquo": 0x203A,
+        "oline": 0x203E,
+        "frasl": 0x2044,
+        "euro": 0x20AC,
+        "image": 0x2111,
+        "weierp": 0x2118,
+        "real": 0x211C,
+        "trade": 0x2122,
+        "alefsym": 0x2135,
+        "larr": 0x2190,
+        "uarr": 0x2191,
+        "rarr": 0x2192,
+        "darr": 0x2193,
+        "harr": 0x2194,
+        "crarr": 0x21B5,
+        "lArr": 0x21D0,
+        "uArr": 0x21D1,
+        "rArr": 0x21D2,
+        "dArr": 0x21D3,
+        "hArr": 0x21D4,
+        "forall": 0x2200,
+        "part": 0x2202,
+        "exist": 0x2203,
+        "empty": 0x2205,
+        "nabla": 0x2207,
+        "isin": 0x2208,
+        "notin": 0x2209,
+        "ni": 0x220B,
+        "prod": 0x220F,
+        "sum": 0x2211,
+        "minus": 0x2212,
+        "lowast": 0x2217,
+        "radic": 0x221A,
+        "prop": 0x221D,
+        "infin": 0x221E,
+        "ang": 0x2220,
+        "and": 0x2227,
+        "or": 0x2228,
+        "cap": 0x2229,
+        "cup": 0x222A,
+        "int": 0x222B,
+        "there4": 0x2234,
+        "sim": 0x223C,
+        "cong": 0x2245,
+        "asymp": 0x2248,
+        "ne": 0x2260,
+        "equiv": 0x2261,
+        "le": 0x2264,
+        "ge": 0x2265,
+        "sub": 0x2282,
+        "sup": 0x2283,
+        "nsub": 0x2284,
+        "sube": 0x2286,
+        "supe": 0x2287,
+        "oplus": 0x2295,
+        "otimes": 0x2297,
+        "perp": 0x22A5,
+        "sdot": 0x22C5,
+        "lceil": 0x2308,
+        "rceil": 0x2309,
+        "lfloor": 0x230A,
+        "rfloor": 0x230B,
+        "lang": 0x2329,
+        "rang": 0x232A,
+        "loz": 0x25CA,
+        "spades": 0x2660,
+        "clubs": 0x2663,
+        "hearts": 0x2665,
+        "diams": 0x2666
+    });
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
 /*@internal*/
 var ts;
 (function (ts) {
+    var ES2017SubstitutionFlags;
+    (function (ES2017SubstitutionFlags) {
+        /** Enables substitutions for async methods with `super` calls. */
+        ES2017SubstitutionFlags[ES2017SubstitutionFlags["AsyncMethodsWithSuper"] = 1] = "AsyncMethodsWithSuper";
+    })(ES2017SubstitutionFlags || (ES2017SubstitutionFlags = {}));
     function transformES2017(context) {
-        var ES2017SubstitutionFlags;
-        (function (ES2017SubstitutionFlags) {
-            /** Enables substitutions for async methods with `super` calls. */
-            ES2017SubstitutionFlags[ES2017SubstitutionFlags["AsyncMethodsWithSuper"] = 1] = "AsyncMethodsWithSuper";
-        })(ES2017SubstitutionFlags || (ES2017SubstitutionFlags = {}));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var resolver = context.getEmitResolver();
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         // These variables contain state that changes as we descend into the tree.
-        var currentSourceFileExternalHelpersModuleName;
+        var currentSourceFile;
         /**
          * Keeps track of whether expression substitution has been enabled for specific edge cases.
          * They are persisted between each SourceFile transformation and should not be reset.
          */
         var enabledSubstitutions;
         /**
-         * Keeps track of whether  we are within any containing namespaces when performing
-         * just-in-time substitution while printing an expression identifier.
-         */
-        var applicableSubstitutions;
-        /**
          * This keeps track of containers where `super` is valid, for use with
          * just-in-time substitution for `super` expressions inside of async methods.
          */
@@ -48414,25 +48638,21 @@ var ts;
         // Set new transformation hooks.
         context.onEmitNode = onEmitNode;
         context.onSubstituteNode = onSubstituteNode;
-        var currentScope;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
-            currentSourceFileExternalHelpersModuleName = node.externalHelpersModuleName;
-            return ts.visitEachChild(node, visitor, context);
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         function visitor(node) {
-            if (node.transformFlags & 64 /* ES2017 */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 128 /* ContainsES2017 */) {
-                return ts.visitEachChild(node, visitor, context);
+            if ((node.transformFlags & 16 /* ContainsES2017 */) === 0) {
+                return node;
             }
-            return node;
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 119 /* AsyncKeyword */:
                     // ES2017 async modifier should be elided for targets < ES2017
@@ -48453,16 +48673,15 @@ var ts;
                     // ES2017 arrow functions may be 'async'
                     return visitArrowFunction(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
-                    return node;
+                    return ts.visitEachChild(node, visitor, context);
             }
         }
         /**
-         * Visits an await expression.
+         * Visits an AwaitExpression node.
          *
          * This function will be called any time a ES2017 await expression is encountered.
          *
-         * @param node The await expression node.
+         * @param node The node to visit.
          */
         function visitAwaitExpression(node) {
             return ts.setOriginalNode(ts.createYield(
@@ -48470,106 +48689,73 @@ var ts;
             /*location*/ node), node);
         }
         /**
-         * Visits a method declaration of a class.
+         * Visits a MethodDeclaration node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked as async
          *
-         * @param node The method node.
+         * @param node The node to visit.
          */
         function visitMethodDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var method = ts.createMethod(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            // While we emit the source map for the node after skipping decorators and modifiers,
-            // we need to emit the comments for the original range.
-            ts.setCommentRange(method, node);
-            ts.setSourceMapRange(method, ts.moveRangePastDecorators(node));
-            ts.setOriginalNode(method, node);
-            return method;
+            return ts.updateMethod(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * Visits a function declaration.
+         * Visits a FunctionDeclaration node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
          *
-         * @param node The function node.
+         * @param node The node to visit.
          */
         function visitFunctionDeclaration(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createFunctionDeclaration(
-            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, ts.visitNodes(node.modifiers, visitor, ts.isModifier), node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * Visits a function expression node.
+         * Visits a FunctionExpression node.
          *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
          *
-         * @param node The function expression node.
+         * @param node The node to visit.
          */
         function visitFunctionExpression(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
             if (ts.nodeIsMissing(node.body)) {
                 return ts.createOmittedExpression();
             }
-            var func = ts.createFunctionExpression(
-            /*modifiers*/ undefined, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, transformFunctionBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
+            return ts.updateFunctionExpression(node, 
+            /*modifiers*/ undefined, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
-         * @remarks
+         * Visits an ArrowFunction.
+         *
          * This function will be called when one of the following conditions are met:
          * - The node is marked async
+         *
+         * @param node The node to visit.
          */
         function visitArrowFunction(node) {
-            if (!ts.isAsyncFunctionLike(node)) {
-                return node;
-            }
-            var func = ts.createArrowFunction(ts.visitNodes(node.modifiers, visitor, ts.isModifier), 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, node.equalsGreaterThanToken, transformConciseBody(node), 
-            /*location*/ node);
-            ts.setOriginalNode(func, node);
-            return func;
-        }
-        function transformFunctionBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformConciseBody(node) {
-            return transformAsyncFunctionBody(node);
-        }
-        function transformFunctionBodyWorker(body, start) {
-            if (start === void 0) { start = 0; }
-            var savedCurrentScope = currentScope;
-            currentScope = body;
-            startLexicalEnvironment();
-            var statements = ts.visitNodes(body.statements, visitor, ts.isStatement, start);
-            var visited = ts.updateBlock(body, statements);
-            var declarations = endLexicalEnvironment();
-            currentScope = savedCurrentScope;
-            return ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
+            return ts.updateArrowFunction(node, ts.visitNodes(node.modifiers, visitor, ts.isModifier), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, ts.isAsyncFunctionLike(node)
+                ? transformAsyncFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         function transformAsyncFunctionBody(node) {
+            resumeLexicalEnvironment();
             var original = ts.getOriginalNode(node, ts.isFunctionLike);
             var nodeType = original.type;
             var promiseConstructor = languageVersion < 2 /* ES2015 */ ? getPromiseConstructor(nodeType) : undefined;
@@ -48583,54 +48769,51 @@ var ts;
             if (!isArrowFunction) {
                 var statements = [];
                 var statementOffset = ts.addPrologueDirectives(statements, node.body.statements, /*ensureUseStrict*/ false, visitor);
-                statements.push(ts.createReturn(ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                statements.push(ts.createReturn(createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body, statementOffset))));
+                ts.addRange(statements, endLexicalEnvironment());
                 var block = ts.createBlock(statements, /*location*/ node.body, /*multiLine*/ true);
                 // Minor optimization, emit `_super` helper to capture `super` access in an arrow.
                 // This step isn't needed if we eventually transform this to ES5.
                 if (languageVersion >= 2 /* ES2015 */) {
                     if (resolver.getNodeCheckFlags(node) & 4096 /* AsyncMethodWithSuperBinding */) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 8 /* EmitAdvancedSuperHelper */);
+                        ts.addEmitHelper(block, advancedAsyncSuperHelper);
                     }
                     else if (resolver.getNodeCheckFlags(node) & 2048 /* AsyncMethodWithSuper */) {
                         enableSubstitutionForAsyncMethodsWithSuper();
-                        ts.setEmitFlags(block, 4 /* EmitSuperHelper */);
+                        ts.addEmitHelper(block, asyncSuperHelper);
                     }
                 }
                 return block;
             }
             else {
-                return ts.createAwaiterHelper(currentSourceFileExternalHelpersModuleName, hasLexicalArguments, promiseConstructor, transformConciseBodyWorker(node.body, /*forceBlockFunctionBody*/ true));
+                var expression = createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, transformFunctionBodyWorker(node.body));
+                var declarations = endLexicalEnvironment();
+                if (ts.some(declarations)) {
+                    var block = ts.convertToFunctionBody(expression);
+                    return ts.updateBlock(block, ts.createNodeArray(ts.concatenate(block.statements, declarations), block.statements));
+                }
+                return expression;
             }
         }
-        function transformConciseBodyWorker(body, forceBlockFunctionBody) {
+        function transformFunctionBodyWorker(body, start) {
             if (ts.isBlock(body)) {
-                return transformFunctionBodyWorker(body);
+                return ts.updateBlock(body, ts.visitLexicalEnvironment(body.statements, visitor, context, start));
             }
             else {
                 startLexicalEnvironment();
-                var visited = ts.visitNode(body, visitor, ts.isConciseBody);
+                var visited = ts.convertToFunctionBody(ts.visitNode(body, visitor, ts.isConciseBody));
                 var declarations = endLexicalEnvironment();
-                var merged = ts.mergeFunctionBodyLexicalEnvironment(visited, declarations);
-                if (forceBlockFunctionBody && !ts.isBlock(merged)) {
-                    return ts.createBlock([
-                        ts.createReturn(merged)
-                    ]);
-                }
-                else {
-                    return merged;
-                }
+                return ts.updateBlock(visited, ts.createNodeArray(ts.concatenate(visited.statements, declarations), visited.statements));
             }
         }
         function getPromiseConstructor(type) {
-            if (type) {
-                var typeName = ts.getEntityNameFromTypeNode(type);
-                if (typeName && ts.isEntityName(typeName)) {
-                    var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
-                    if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
-                        || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
-                        return typeName;
-                    }
+            var typeName = type && ts.getEntityNameFromTypeNode(type);
+            if (typeName && ts.isEntityName(typeName)) {
+                var serializationKind = resolver.getTypeReferenceSerializationKind(typeName);
+                if (serializationKind === ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue
+                    || serializationKind === ts.TypeReferenceSerializationKind.Unknown) {
+                    return typeName;
                 }
             }
             return undefined;
@@ -48714,16 +48897,17 @@ var ts;
          * @param emit A callback used to emit the node in the printer.
          */
         function onEmitNode(emitContext, node, emitCallback) {
-            var savedApplicableSubstitutions = applicableSubstitutions;
-            var savedCurrentSuperContainer = currentSuperContainer;
             // If we need to support substitutions for `super` in an async method,
             // we should track it here.
             if (enabledSubstitutions & 1 /* AsyncMethodsWithSuper */ && isSuperContainer(node)) {
+                var savedCurrentSuperContainer = currentSuperContainer;
                 currentSuperContainer = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSuperContainer = savedCurrentSuperContainer;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
             }
-            previousOnEmitNode(emitContext, node, emitCallback);
-            applicableSubstitutions = savedApplicableSubstitutions;
-            currentSuperContainer = savedCurrentSuperContainer;
         }
         /**
          * Hooks node substitutions.
@@ -48755,6 +48939,40 @@ var ts;
         }
     }
     ts.transformES2017 = transformES2017;
+    function createAwaiterHelper(context, hasLexicalArguments, promiseConstructor, body) {
+        context.requestEmitHelper(awaiterHelper);
+        var generatorFunc = ts.createFunctionExpression(
+        /*modifiers*/ undefined, ts.createToken(38 /* AsteriskToken */), 
+        /*name*/ undefined, 
+        /*typeParameters*/ undefined, 
+        /*parameters*/ [], 
+        /*type*/ undefined, body);
+        // Mark this node as originally an async function
+        (generatorFunc.emitNode || (generatorFunc.emitNode = {})).flags |= 131072 /* AsyncFunctionBody */;
+        return ts.createCall(ts.getHelperName("__awaiter"), 
+        /*typeArguments*/ undefined, [
+            ts.createThis(),
+            hasLexicalArguments ? ts.createIdentifier("arguments") : ts.createVoidZero(),
+            promiseConstructor ? ts.createExpressionFromEntityName(promiseConstructor) : ts.createVoidZero(),
+            generatorFunc
+        ]);
+    }
+    var awaiterHelper = {
+        name: "typescript:awaiter",
+        scoped: false,
+        priority: 5,
+        text: "\n            var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n                return new (P || (P = Promise))(function (resolve, reject) {\n                    function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n                    function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n                    function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n                    step((generator = generator.apply(thisArg, _arguments)).next());\n                });\n            };"
+    };
+    var asyncSuperHelper = {
+        name: "typescript:async-super",
+        scoped: true,
+        text: "\n            const _super = name => super[name];"
+    };
+    var advancedAsyncSuperHelper = {
+        name: "typescript:advanced-async-super",
+        scoped: true,
+        text: "\n            const _super = (function (geti, seti) {\n                const cache = Object.create(null);\n                return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n            })(name => super[name], (name, value) => super[name] = value);"
+    };
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
@@ -48771,64 +48989,60 @@ var ts;
             return ts.visitEachChild(node, visitor, context);
         }
         function visitor(node) {
-            if (node.transformFlags & 256 /* ES2016 */) {
-                return visitorWorker(node);
-            }
-            else if (node.transformFlags & 512 /* ContainsES2016 */) {
-                return ts.visitEachChild(node, visitor, context);
-            }
-            else {
+            if ((node.transformFlags & 32 /* ContainsES2016 */) === 0) {
                 return node;
             }
-        }
-        function visitorWorker(node) {
             switch (node.kind) {
                 case 192 /* BinaryExpression */:
                     return visitBinaryExpression(node);
                 default:
-                    ts.Debug.failBadSyntaxKind(node);
                     return ts.visitEachChild(node, visitor, context);
             }
         }
         function visitBinaryExpression(node) {
-            // We are here because ES2016 adds support for the exponentiation operator.
+            switch (node.operatorToken.kind) {
+                case 61 /* AsteriskAsteriskEqualsToken */:
+                    return visitExponentiationAssignmentExpression(node);
+                case 39 /* AsteriskAsteriskToken */:
+                    return visitExponentiationExpression(node);
+                default:
+                    return ts.visitEachChild(node, visitor, context);
+            }
+        }
+        function visitExponentiationAssignmentExpression(node) {
+            var target;
+            var value;
             var left = ts.visitNode(node.left, visitor, ts.isExpression);
             var right = ts.visitNode(node.right, visitor, ts.isExpression);
-            if (node.operatorToken.kind === 61 /* AsteriskAsteriskEqualsToken */) {
-                var target = void 0;
-                var value = void 0;
-                if (ts.isElementAccessExpression(left)) {
-                    // Transforms `a[x] **= b` into `(_a = a)[_x = x] = Math.pow(_a[_x], b)`
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, /*location*/ left.argumentExpression), 
-                    /*location*/ left);
-                    value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, 
-                    /*location*/ left);
-                }
-                else if (ts.isPropertyAccessExpression(left)) {
-                    // Transforms `a.x **= b` into `(_a = a).x = Math.pow(_a.x, b)`
-                    var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
-                    target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), left.name, 
-                    /*location*/ left);
-                    value = ts.createPropertyAccess(expressionTemp, left.name, 
-                    /*location*/ left);
-                }
-                else {
-                    // Transforms `a **= b` into `a = Math.pow(a, b)`
-                    target = left;
-                    value = left;
-                }
-                return ts.createAssignment(target, ts.createMathPow(value, right, /*location*/ node), /*location*/ node);
-            }
-            else if (node.operatorToken.kind === 39 /* AsteriskAsteriskToken */) {
-                // Transforms `a ** b` into `Math.pow(a, b)`
-                return ts.createMathPow(left, right, /*location*/ node);
+            if (ts.isElementAccessExpression(left)) {
+                // Transforms `a[x] **= b` into `(_a = a)[_x = x] = Math.pow(_a[_x], b)`
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                var argumentExpressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createElementAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), ts.createAssignment(argumentExpressionTemp, left.argumentExpression, /*location*/ left.argumentExpression), 
+                /*location*/ left);
+                value = ts.createElementAccess(expressionTemp, argumentExpressionTemp, 
+                /*location*/ left);
+            }
+            else if (ts.isPropertyAccessExpression(left)) {
+                // Transforms `a.x **= b` into `(_a = a).x = Math.pow(_a.x, b)`
+                var expressionTemp = ts.createTempVariable(hoistVariableDeclaration);
+                target = ts.createPropertyAccess(ts.createAssignment(expressionTemp, left.expression, /*location*/ left.expression), left.name, 
+                /*location*/ left);
+                value = ts.createPropertyAccess(expressionTemp, left.name, 
+                /*location*/ left);
             }
             else {
-                ts.Debug.failBadSyntaxKind(node);
-                return ts.visitEachChild(node, visitor, context);
+                // Transforms `a **= b` into `a = Math.pow(a, b)`
+                target = left;
+                value = left;
             }
+            return ts.createAssignment(target, ts.createMathPow(value, right, /*location*/ node), /*location*/ node);
+        }
+        function visitExponentiationExpression(node) {
+            // Transforms `a ** b` into `Math.pow(a, b)`
+            var left = ts.visitNode(node.left, visitor, ts.isExpression);
+            var right = ts.visitNode(node.right, visitor, ts.isExpression);
+            return ts.createMathPow(left, right, /*location*/ node);
         }
     }
     ts.transformES2016 = transformES2016;
@@ -48881,7 +49095,7 @@ var ts;
         SuperCaptureResult[SuperCaptureResult["ReplaceWithReturn"] = 2] = "ReplaceWithReturn";
     })(SuperCaptureResult || (SuperCaptureResult = {}));
     function transformES2015(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var resolver = context.getEmitResolver();
         var previousOnSubstituteNode = context.onSubstituteNode;
         var previousOnEmitNode = context.onEmitNode;
@@ -48915,7 +49129,11 @@ var ts;
             }
             currentSourceFile = node;
             currentText = node.text;
-            return ts.visitNode(node, visitor, ts.isSourceFile);
+            var visited = saveStateAndInvoke(node, visitSourceFile);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            currentText = undefined;
+            return visited;
         }
         function visitor(node) {
             return saveStateAndInvoke(node, dispatcher);
@@ -48955,6 +49173,41 @@ var ts;
             currentNode = savedCurrentNode;
             return visited;
         }
+        function onBeforeVisitNode(node) {
+            if (currentNode) {
+                if (ts.isBlockScope(currentNode, currentParent)) {
+                    enclosingBlockScopeContainer = currentNode;
+                    enclosingBlockScopeContainerParent = currentParent;
+                }
+                if (ts.isFunctionLike(currentNode)) {
+                    enclosingFunction = currentNode;
+                    if (currentNode.kind !== 185 /* ArrowFunction */) {
+                        enclosingNonArrowFunction = currentNode;
+                        if (!(ts.getEmitFlags(currentNode) & 131072 /* AsyncFunctionBody */)) {
+                            enclosingNonAsyncFunctionBody = currentNode;
+                        }
+                    }
+                }
+                // keep track of the enclosing variable statement when in the context of
+                // variable statements, variable declarations, binding elements, and binding
+                // patterns.
+                switch (currentNode.kind) {
+                    case 205 /* VariableStatement */:
+                        enclosingVariableStatement = currentNode;
+                        break;
+                    case 224 /* VariableDeclarationList */:
+                    case 223 /* VariableDeclaration */:
+                    case 174 /* BindingElement */:
+                    case 172 /* ObjectBindingPattern */:
+                    case 173 /* ArrayBindingPattern */:
+                        break;
+                    default:
+                        enclosingVariableStatement = undefined;
+                }
+            }
+            currentParent = currentNode;
+            currentNode = node;
+        }
         function returnCapturedThis(node) {
             return ts.setOriginalNode(ts.createReturn(ts.createIdentifier("_this")), node);
         }
@@ -48962,7 +49215,7 @@ var ts;
             return isInConstructorWithCapturedSuper && node.kind === 216 /* ReturnStatement */ && !node.expression;
         }
         function shouldCheckNode(node) {
-            return (node.transformFlags & 1024 /* ES2015 */) !== 0 ||
+            return (node.transformFlags & 64 /* ES2015 */) !== 0 ||
                 node.kind === 219 /* LabeledStatement */ ||
                 (ts.isIterationStatement(node, /*lookInLabeledStatements*/ false) && shouldConvertIterationStatementBody(node));
         }
@@ -48973,7 +49226,7 @@ var ts;
             else if (shouldCheckNode(node)) {
                 return visitJavaScript(node);
             }
-            else if (node.transformFlags & 2048 /* ContainsES2015 */ || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
+            else if (node.transformFlags & 128 /* ContainsES2015 */ || (isInConstructorWithCapturedSuper && !ts.isExpression(node))) {
                 // we want to dive in this branch either if node has children with ES2015 specific syntax
                 // or we are inside constructor that captures result of the super call so all returns without expression should be
                 // rewritten. Note: we skip expressions since returns should never appear there
@@ -49076,6 +49329,8 @@ var ts;
                     return visitTemplateExpression(node);
                 case 195 /* YieldExpression */:
                     return visitYieldExpression(node);
+                case 196 /* SpreadElement */:
+                    return visitSpreadElement(node);
                 case 96 /* SuperKeyword */:
                     return visitSuperKeyword();
                 case 195 /* YieldExpression */:
@@ -49083,8 +49338,6 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
                 case 149 /* MethodDeclaration */:
                     return visitMethodDeclaration(node);
-                case 261 /* SourceFile */:
-                    return visitSourceFileNode(node);
                 case 205 /* VariableStatement */:
                     return visitVariableStatement(node);
                 default:
@@ -49092,40 +49345,14 @@ var ts;
                     return ts.visitEachChild(node, visitor, context);
             }
         }
-        function onBeforeVisitNode(node) {
-            if (currentNode) {
-                if (ts.isBlockScope(currentNode, currentParent)) {
-                    enclosingBlockScopeContainer = currentNode;
-                    enclosingBlockScopeContainerParent = currentParent;
-                }
-                if (ts.isFunctionLike(currentNode)) {
-                    enclosingFunction = currentNode;
-                    if (currentNode.kind !== 185 /* ArrowFunction */) {
-                        enclosingNonArrowFunction = currentNode;
-                        if (!(ts.getEmitFlags(currentNode) & 2097152 /* AsyncFunctionBody */)) {
-                            enclosingNonAsyncFunctionBody = currentNode;
-                        }
-                    }
-                }
-                // keep track of the enclosing variable statement when in the context of
-                // variable statements, variable declarations, binding elements, and binding
-                // patterns.
-                switch (currentNode.kind) {
-                    case 205 /* VariableStatement */:
-                        enclosingVariableStatement = currentNode;
-                        break;
-                    case 224 /* VariableDeclarationList */:
-                    case 223 /* VariableDeclaration */:
-                    case 174 /* BindingElement */:
-                    case 172 /* ObjectBindingPattern */:
-                    case 173 /* ArrayBindingPattern */:
-                        break;
-                    default:
-                        enclosingVariableStatement = undefined;
-                }
-            }
-            currentParent = currentNode;
-            currentNode = node;
+        function visitSourceFile(node) {
+            var statements = [];
+            startLexicalEnvironment();
+            var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ false, visitor);
+            addCaptureThisForNodeIfNeeded(statements, node);
+            ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+            ts.addRange(statements, endLexicalEnvironment());
+            return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
         }
         function visitSwitchStatement(node) {
             ts.Debug.assert(convertedLoopState !== undefined);
@@ -49250,10 +49477,10 @@ var ts;
                 statements.push(exportStatement);
             }
             var emitFlags = ts.getEmitFlags(node);
-            if ((emitFlags & 33554432 /* HasEndOfDeclarationMarker */) === 0) {
+            if ((emitFlags & 2097152 /* HasEndOfDeclarationMarker */) === 0) {
                 // Add a DeclarationMarker as a marker for the end of the declaration
                 statements.push(ts.createEndOfDeclarationMarker(node));
-                ts.setEmitFlags(statement, emitFlags | 33554432 /* HasEndOfDeclarationMarker */);
+                ts.setEmitFlags(statement, emitFlags | 2097152 /* HasEndOfDeclarationMarker */);
             }
             return ts.singleOrMany(statements);
         }
@@ -49315,17 +49542,17 @@ var ts;
             // To preserve the behavior of the old emitter, we explicitly indent
             // the body of the function here if it was requested in an earlier
             // transformation.
-            if (ts.getEmitFlags(node) & 524288 /* Indented */) {
-                ts.setEmitFlags(classFunction, 524288 /* Indented */);
+            if (ts.getEmitFlags(node) & 32768 /* Indented */) {
+                ts.setEmitFlags(classFunction, 32768 /* Indented */);
             }
             // "inner" and "outer" below are added purely to preserve source map locations from
             // the old emitter
             var inner = ts.createPartiallyEmittedExpression(classFunction);
             inner.end = node.end;
-            ts.setEmitFlags(inner, 49152 /* NoComments */);
+            ts.setEmitFlags(inner, 1536 /* NoComments */);
             var outer = ts.createPartiallyEmittedExpression(inner);
             outer.end = ts.skipTrivia(currentText, node.pos);
-            ts.setEmitFlags(outer, 49152 /* NoComments */);
+            ts.setEmitFlags(outer, 1536 /* NoComments */);
             return ts.createParen(ts.createCall(outer, 
             /*typeArguments*/ undefined, extendsClauseElement
                 ? [ts.visitNode(extendsClauseElement.expression, visitor, ts.isExpression)]
@@ -49350,14 +49577,14 @@ var ts;
             // emit with the original emitter.
             var outer = ts.createPartiallyEmittedExpression(localName);
             outer.end = closingBraceLocation.end;
-            ts.setEmitFlags(outer, 49152 /* NoComments */);
+            ts.setEmitFlags(outer, 1536 /* NoComments */);
             var statement = ts.createReturn(outer);
             statement.pos = closingBraceLocation.pos;
-            ts.setEmitFlags(statement, 49152 /* NoComments */ | 12288 /* NoTokenSourceMaps */);
+            ts.setEmitFlags(statement, 1536 /* NoComments */ | 384 /* NoTokenSourceMaps */);
             statements.push(statement);
             ts.addRange(statements, endLexicalEnvironment());
             var block = ts.createBlock(ts.createNodeArray(statements, /*location*/ node.members), /*location*/ undefined, /*multiLine*/ true);
-            ts.setEmitFlags(block, 49152 /* NoComments */);
+            ts.setEmitFlags(block, 1536 /* NoComments */);
             return block;
         }
         /**
@@ -49369,7 +49596,7 @@ var ts;
          */
         function addExtendsHelperIfNeeded(statements, node, extendsClauseElement) {
             if (extendsClauseElement) {
-                statements.push(ts.createStatement(ts.createExtendsHelper(currentSourceFile.externalHelpersModuleName, ts.getLocalName(node)), 
+                statements.push(ts.createStatement(createExtendsHelper(context, ts.getLocalName(node)), 
                 /*location*/ extendsClauseElement));
             }
         }
@@ -49391,7 +49618,7 @@ var ts;
             /*type*/ undefined, transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper), 
             /*location*/ constructor || node);
             if (extendsClauseElement) {
-                ts.setEmitFlags(constructorFunction, 256 /* CapturesThis */);
+                ts.setEmitFlags(constructorFunction, 8 /* CapturesThis */);
             }
             statements.push(constructorFunction);
         }
@@ -49408,10 +49635,8 @@ var ts;
             // `super` call.
             // If this is the case, we do not include the synthetic `...args` parameter and
             // will instead use the `arguments` object in ES5/3.
-            if (constructor && !hasSynthesizedSuper) {
-                return ts.visitNodes(constructor.parameters, visitor, ts.isParameter);
-            }
-            return [];
+            return ts.visitParameterList(constructor && !hasSynthesizedSuper && constructor.parameters, visitor, context)
+                || [];
         }
         /**
          * Transforms the body of a constructor declaration of a class.
@@ -49424,21 +49649,21 @@ var ts;
          */
         function transformConstructorBody(constructor, node, extendsClauseElement, hasSynthesizedSuper) {
             var statements = [];
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = -1;
             if (hasSynthesizedSuper) {
                 // If a super call has already been synthesized,
                 // we're going to assume that we should just transform everything after that.
                 // The assumption is that no prior step in the pipeline has added any prologue directives.
-                statementOffset = 1;
+                statementOffset = 0;
             }
             else if (constructor) {
                 // Otherwise, try to emit all potential prologue directives first.
                 statementOffset = ts.addPrologueDirectives(statements, constructor.body.statements, /*ensureUseStrict*/ false, visitor);
             }
             if (constructor) {
-                ts.addDefaultValueAssignmentsIfNeeded(statements, constructor, visitor, /*convertObjectRest*/ false);
-                ts.addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
+                addDefaultValueAssignmentsIfNeeded(statements, constructor);
+                addRestParameterIfNeeded(statements, constructor, hasSynthesizedSuper);
                 ts.Debug.assert(statementOffset >= 0, "statementOffset not initialized correctly!");
             }
             var superCaptureStatus = declareOrCaptureOrReturnThisForConstructorIfNeeded(statements, constructor, !!extendsClauseElement, hasSynthesizedSuper, statementOffset);
@@ -49466,7 +49691,7 @@ var ts;
             /*location*/ constructor ? constructor.body : node, 
             /*multiLine*/ true);
             if (!constructor) {
-                ts.setEmitFlags(block, 49152 /* NoComments */);
+                ts.setEmitFlags(block, 1536 /* NoComments */);
             }
             return block;
         }
@@ -49504,7 +49729,7 @@ var ts;
             // If this isn't a derived class, just capture 'this' for arrow functions if necessary.
             if (!hasExtendsClause) {
                 if (ctor) {
-                    ts.addCaptureThisForNodeIfNeeded(statements, ctor, enableSubstitutionsForCapturedThis);
+                    addCaptureThisForNodeIfNeeded(statements, ctor);
                 }
                 return 0 /* NoReplacement */;
             }
@@ -49519,7 +49744,7 @@ var ts;
             // for something like property initializers.
             // Create a captured '_this' variable and assume it will subsequently be used.
             if (hasSynthesizedSuper) {
-                ts.captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
+                captureThisForNode(statements, ctor, createDefaultSuperCallOrThis());
                 enableSubstitutionsForCapturedThis();
                 return 1 /* ReplaceSuperCapture */;
             }
@@ -49558,12 +49783,12 @@ var ts;
                     ts.Debug.fail("Assumed generated super call would have form 'super.call(...) || this'.");
                 }
                 // Shift comments from the original super call to the return statement.
-                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 49152 /* NoComments */)));
+                ts.setCommentRange(returnStatement, ts.getCommentRange(ts.setEmitFlags(superCallExpression.left, 1536 /* NoComments */)));
                 statements.push(returnStatement);
                 return 2 /* ReplaceWithReturn */;
             }
             // Perform the capture.
-            ts.captureThisForNode(statements, ctor, superCallExpression, enableSubstitutionsForCapturedThis, firstStatement);
+            captureThisForNode(statements, ctor, superCallExpression, firstStatement);
             // If we're actually replacing the original statement, we need to signal this to the caller.
             if (superCallExpression) {
                 return 1 /* ReplaceSuperCapture */;
@@ -49572,7 +49797,7 @@ var ts;
         }
         function createDefaultSuperCallOrThis() {
             var actualThis = ts.createThis();
-            ts.setEmitFlags(actualThis, 128 /* NoSubstitution */);
+            ts.setEmitFlags(actualThis, 4 /* NoSubstitution */);
             var superCall = ts.createFunctionApply(ts.createIdentifier("_super"), actualThis, ts.createIdentifier("arguments"));
             return ts.createLogicalOr(superCall, actualThis);
         }
@@ -49616,6 +49841,160 @@ var ts;
             }
         }
         /**
+         * Gets a value indicating whether we need to add default value assignments for a
+         * function-like node.
+         *
+         * @param node A function-like node.
+         */
+        function shouldAddDefaultValueAssignments(node) {
+            return (node.transformFlags & 131072 /* ContainsDefaultValueAssignments */) !== 0;
+        }
+        /**
+         * Adds statements to the body of a function-like node if it contains parameters with
+         * binding patterns or initializers.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A function-like node.
+         */
+        function addDefaultValueAssignmentsIfNeeded(statements, node) {
+            if (!shouldAddDefaultValueAssignments(node)) {
+                return;
+            }
+            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+                var parameter = _a[_i];
+                var name_35 = parameter.name, initializer = parameter.initializer, dotDotDotToken = parameter.dotDotDotToken;
+                // A rest parameter cannot have a binding pattern or an initializer,
+                // so let's just ignore it.
+                if (dotDotDotToken) {
+                    continue;
+                }
+                if (ts.isBindingPattern(name_35)) {
+                    addDefaultValueAssignmentForBindingPattern(statements, parameter, name_35, initializer);
+                }
+                else if (initializer) {
+                    addDefaultValueAssignmentForInitializer(statements, parameter, name_35, initializer);
+                }
+            }
+        }
+        /**
+         * Adds statements to the body of a function-like node for parameters with binding patterns
+         *
+         * @param statements The statements for the new function body.
+         * @param parameter The parameter for the function.
+         * @param name The name of the parameter.
+         * @param initializer The initializer for the parameter.
+         */
+        function addDefaultValueAssignmentForBindingPattern(statements, parameter, name, initializer) {
+            var temp = ts.getGeneratedNameForNode(parameter);
+            // In cases where a binding pattern is simply '[]' or '{}',
+            // we usually don't want to emit a var declaration; however, in the presence
+            // of an initializer, we must emit that expression to preserve side effects.
+            if (name.elements.length > 0) {
+                statements.push(ts.setEmitFlags(ts.createVariableStatement(
+                /*modifiers*/ undefined, ts.createVariableDeclarationList(ts.flattenDestructuringBinding(parameter, visitor, context, 0 /* All */, temp))), 524288 /* CustomPrologue */));
+            }
+            else if (initializer) {
+                statements.push(ts.setEmitFlags(ts.createStatement(ts.createAssignment(temp, ts.visitNode(initializer, visitor, ts.isExpression))), 524288 /* CustomPrologue */));
+            }
+        }
+        /**
+         * Adds statements to the body of a function-like node for parameters with initializers.
+         *
+         * @param statements The statements for the new function body.
+         * @param parameter The parameter for the function.
+         * @param name The name of the parameter.
+         * @param initializer The initializer for the parameter.
+         */
+        function addDefaultValueAssignmentForInitializer(statements, parameter, name, initializer) {
+            initializer = ts.visitNode(initializer, visitor, ts.isExpression);
+            var statement = ts.createIf(ts.createTypeCheck(ts.getSynthesizedClone(name), "undefined"), ts.setEmitFlags(ts.createBlock([
+                ts.createStatement(ts.createAssignment(ts.setEmitFlags(ts.getMutableClone(name), 48 /* NoSourceMap */), ts.setEmitFlags(initializer, 48 /* NoSourceMap */ | ts.getEmitFlags(initializer)), 
+                /*location*/ parameter))
+            ], /*location*/ parameter), 1 /* SingleLine */ | 32 /* NoTrailingSourceMap */ | 384 /* NoTokenSourceMaps */), 
+            /*elseStatement*/ undefined, 
+            /*location*/ parameter);
+            statement.startsOnNewLine = true;
+            ts.setEmitFlags(statement, 384 /* NoTokenSourceMaps */ | 32 /* NoTrailingSourceMap */ | 524288 /* CustomPrologue */);
+            statements.push(statement);
+        }
+        /**
+         * Gets a value indicating whether we need to add statements to handle a rest parameter.
+         *
+         * @param node A ParameterDeclaration node.
+         * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
+         *                                          part of a constructor declaration with a
+         *                                          synthesized call to `super`
+         */
+        function shouldAddRestParameter(node, inConstructorWithSynthesizedSuper) {
+            return node && node.dotDotDotToken && node.name.kind === 70 /* Identifier */ && !inConstructorWithSynthesizedSuper;
+        }
+        /**
+         * Adds statements to the body of a function-like node if it contains a rest parameter.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A function-like node.
+         * @param inConstructorWithSynthesizedSuper A value indicating whether the parameter is
+         *                                          part of a constructor declaration with a
+         *                                          synthesized call to `super`
+         */
+        function addRestParameterIfNeeded(statements, node, inConstructorWithSynthesizedSuper) {
+            var parameter = ts.lastOrUndefined(node.parameters);
+            if (!shouldAddRestParameter(parameter, inConstructorWithSynthesizedSuper)) {
+                return;
+            }
+            // `declarationName` is the name of the local declaration for the parameter.
+            var declarationName = ts.getMutableClone(parameter.name);
+            ts.setEmitFlags(declarationName, 48 /* NoSourceMap */);
+            // `expressionName` is the name of the parameter used in expressions.
+            var expressionName = ts.getSynthesizedClone(parameter.name);
+            var restIndex = node.parameters.length - 1;
+            var temp = ts.createLoopVariable();
+            // var param = [];
+            statements.push(ts.setEmitFlags(ts.createVariableStatement(
+            /*modifiers*/ undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(declarationName, 
+                /*type*/ undefined, ts.createArrayLiteral([]))
+            ]), 
+            /*location*/ parameter), 524288 /* CustomPrologue */));
+            // for (var _i = restIndex; _i < arguments.length; _i++) {
+            //   param[_i - restIndex] = arguments[_i];
+            // }
+            var forStatement = ts.createFor(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(temp, /*type*/ undefined, ts.createLiteral(restIndex))
+            ], /*location*/ parameter), ts.createLessThan(temp, ts.createPropertyAccess(ts.createIdentifier("arguments"), "length"), 
+            /*location*/ parameter), ts.createPostfixIncrement(temp, /*location*/ parameter), ts.createBlock([
+                ts.startOnNewLine(ts.createStatement(ts.createAssignment(ts.createElementAccess(expressionName, restIndex === 0
+                    ? temp
+                    : ts.createSubtract(temp, ts.createLiteral(restIndex))), ts.createElementAccess(ts.createIdentifier("arguments"), temp)), 
+                /*location*/ parameter))
+            ]));
+            ts.setEmitFlags(forStatement, 524288 /* CustomPrologue */);
+            ts.startOnNewLine(forStatement);
+            statements.push(forStatement);
+        }
+        /**
+         * Adds a statement to capture the `this` of a function declaration if it is needed.
+         *
+         * @param statements The statements for the new function body.
+         * @param node A node.
+         */
+        function addCaptureThisForNodeIfNeeded(statements, node) {
+            if (node.transformFlags & 32768 /* ContainsCapturedLexicalThis */ && node.kind !== 185 /* ArrowFunction */) {
+                captureThisForNode(statements, node, ts.createThis());
+            }
+        }
+        function captureThisForNode(statements, node, initializer, originalStatement) {
+            enableSubstitutionsForCapturedThis();
+            var captureThisStatement = ts.createVariableStatement(
+            /*modifiers*/ undefined, ts.createVariableDeclarationList([
+                ts.createVariableDeclaration("_this", 
+                /*type*/ undefined, initializer)
+            ]), originalStatement);
+            ts.setEmitFlags(captureThisStatement, 1536 /* NoComments */ | 524288 /* CustomPrologue */);
+            ts.setSourceMapRange(captureThisStatement, node);
+            statements.push(captureThisStatement);
+        }
+        /**
          * Adds statements to the class body function for a class to define the members of the
          * class.
          *
@@ -49665,18 +50044,18 @@ var ts;
         function transformClassMethodDeclarationToStatement(receiver, member) {
             var commentRange = ts.getCommentRange(member);
             var sourceMapRange = ts.getSourceMapRange(member);
-            var func = transformFunctionLikeToExpression(member, /*location*/ member, /*name*/ undefined);
-            ts.setEmitFlags(func, 49152 /* NoComments */);
-            ts.setSourceMapRange(func, sourceMapRange);
-            var statement = ts.createStatement(ts.createAssignment(ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), 
-            /*location*/ member.name), func), 
+            var memberName = ts.createMemberAccessForPropertyName(receiver, ts.visitNode(member.name, visitor, ts.isPropertyName), /*location*/ member.name);
+            var memberFunction = transformFunctionLikeToExpression(member, /*location*/ member, /*name*/ undefined);
+            ts.setEmitFlags(memberFunction, 1536 /* NoComments */);
+            ts.setSourceMapRange(memberFunction, sourceMapRange);
+            var statement = ts.createStatement(ts.createAssignment(memberName, memberFunction), 
             /*location*/ member);
             ts.setOriginalNode(statement, member);
             ts.setCommentRange(statement, commentRange);
             // The location for the statement is used to emit comments only.
             // No source map should be emitted for this statement to align with the
             // old emitter.
-            ts.setEmitFlags(statement, 1536 /* NoSourceMap */);
+            ts.setEmitFlags(statement, 48 /* NoSourceMap */);
             return statement;
         }
         /**
@@ -49691,7 +50070,7 @@ var ts;
             // The location for the statement is used to emit source maps only.
             // No comments should be emitted for this statement to align with the
             // old emitter.
-            ts.setEmitFlags(statement, 49152 /* NoComments */);
+            ts.setEmitFlags(statement, 1536 /* NoComments */);
             return statement;
         }
         /**
@@ -49705,16 +50084,16 @@ var ts;
             // To align with source maps in the old emitter, the receiver and property name
             // arguments are both mapped contiguously to the accessor name.
             var target = ts.getMutableClone(receiver);
-            ts.setEmitFlags(target, 49152 /* NoComments */ | 1024 /* NoTrailingSourceMap */);
+            ts.setEmitFlags(target, 1536 /* NoComments */ | 32 /* NoTrailingSourceMap */);
             ts.setSourceMapRange(target, firstAccessor.name);
             var propertyName = ts.createExpressionForPropertyName(ts.visitNode(firstAccessor.name, visitor, ts.isPropertyName));
-            ts.setEmitFlags(propertyName, 49152 /* NoComments */ | 512 /* NoLeadingSourceMap */);
+            ts.setEmitFlags(propertyName, 1536 /* NoComments */ | 16 /* NoLeadingSourceMap */);
             ts.setSourceMapRange(propertyName, firstAccessor.name);
             var properties = [];
             if (getAccessor) {
                 var getterFunction = transformFunctionLikeToExpression(getAccessor, /*location*/ undefined, /*name*/ undefined);
                 ts.setSourceMapRange(getterFunction, ts.getSourceMapRange(getAccessor));
-                ts.setEmitFlags(getterFunction, 16384 /* NoLeadingComments */);
+                ts.setEmitFlags(getterFunction, 512 /* NoLeadingComments */);
                 var getter = ts.createPropertyAssignment("get", getterFunction);
                 ts.setCommentRange(getter, ts.getCommentRange(getAccessor));
                 properties.push(getter);
@@ -49722,7 +50101,7 @@ var ts;
             if (setAccessor) {
                 var setterFunction = transformFunctionLikeToExpression(setAccessor, /*location*/ undefined, /*name*/ undefined);
                 ts.setSourceMapRange(setterFunction, ts.getSourceMapRange(setAccessor));
-                ts.setEmitFlags(setterFunction, 16384 /* NoLeadingComments */);
+                ts.setEmitFlags(setterFunction, 512 /* NoLeadingComments */);
                 var setter = ts.createPropertyAssignment("set", setterFunction);
                 ts.setCommentRange(setter, ts.getCommentRange(setAccessor));
                 properties.push(setter);
@@ -49745,11 +50124,17 @@ var ts;
          * @param node An ArrowFunction node.
          */
         function visitArrowFunction(node) {
-            if (node.transformFlags & 262144 /* ContainsLexicalThis */) {
+            if (node.transformFlags & 16384 /* ContainsLexicalThis */) {
                 enableSubstitutionsForCapturedThis();
             }
-            var func = transformFunctionLikeToExpression(node, /*location*/ node, /*name*/ undefined);
-            ts.setEmitFlags(func, 256 /* CapturesThis */);
+            var func = ts.createFunctionExpression(
+            /*modifiers*/ undefined, 
+            /*asteriskToken*/ undefined, 
+            /*name*/ undefined, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, transformFunctionBody(node), node);
+            ts.setOriginalNode(func, node);
+            ts.setEmitFlags(func, 8 /* CapturesThis */);
             return func;
         }
         /**
@@ -49758,7 +50143,12 @@ var ts;
          * @param node a FunctionExpression node.
          */
         function visitFunctionExpression(node) {
-            return transformFunctionLikeToExpression(node, /*location*/ node, node.name);
+            return ts.updateFunctionExpression(node, 
+            /*modifiers*/ undefined, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, node.transformFlags & 64 /* ES2015 */
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
          * Visits a FunctionDeclaration node.
@@ -49766,12 +50156,12 @@ var ts;
          * @param node a FunctionDeclaration node.
          */
         function visitFunctionDeclaration(node) {
-            return ts.setOriginalNode(ts.createFunctionDeclaration(
-            /*decorators*/ undefined, node.modifiers, node.asteriskToken, node.name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis), 
-            /*location*/ node), 
-            /*original*/ node);
+            return ts.updateFunctionDeclaration(node, 
+            /*decorators*/ undefined, node.modifiers, node.name, 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, node.transformFlags & 64 /* ES2015 */
+                ? transformFunctionBody(node)
+                : ts.visitFunctionBody(node.body, visitor, context));
         }
         /**
          * Transforms a function-like node into a FunctionExpression.
@@ -49787,13 +50177,87 @@ var ts;
             }
             var expression = ts.setOriginalNode(ts.createFunctionExpression(
             /*modifiers*/ undefined, node.asteriskToken, name, 
-            /*typeParameters*/ undefined, ts.visitNodes(node.parameters, visitor, ts.isParameter), 
-            /*type*/ undefined, saveStateAndInvoke(node, function (node) { return ts.transformFunctionBody(node, visitor, currentSourceFile, context, enableSubstitutionsForCapturedThis); }), location), 
+            /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
+            /*type*/ undefined, saveStateAndInvoke(node, transformFunctionBody), location), 
             /*original*/ node);
             enclosingNonArrowFunction = savedContainingNonArrowFunction;
             return expression;
         }
         /**
+         * Transforms the body of a function-like node.
+         *
+         * @param node A function-like node.
+         */
+        function transformFunctionBody(node) {
+            var multiLine = false; // indicates whether the block *must* be emitted as multiple lines
+            var singleLine = false; // indicates whether the block *may* be emitted as a single line
+            var statementsLocation;
+            var closeBraceLocation;
+            var statements = [];
+            var body = node.body;
+            var statementOffset;
+            resumeLexicalEnvironment();
+            if (ts.isBlock(body)) {
+                // ensureUseStrict is false because no new prologue-directive should be added.
+                // addPrologueDirectives will simply put already-existing directives at the beginning of the target statement-array
+                statementOffset = ts.addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
+            }
+            addCaptureThisForNodeIfNeeded(statements, node);
+            addDefaultValueAssignmentsIfNeeded(statements, node);
+            addRestParameterIfNeeded(statements, node, /*inConstructorWithSynthesizedSuper*/ false);
+            // If we added any generated statements, this must be a multi-line block.
+            if (!multiLine && statements.length > 0) {
+                multiLine = true;
+            }
+            if (ts.isBlock(body)) {
+                statementsLocation = body.statements;
+                ts.addRange(statements, ts.visitNodes(body.statements, visitor, ts.isStatement, statementOffset));
+                // If the original body was a multi-line block, this must be a multi-line block.
+                if (!multiLine && body.multiLine) {
+                    multiLine = true;
+                }
+            }
+            else {
+                ts.Debug.assert(node.kind === 185 /* ArrowFunction */);
+                // To align with the old emitter, we use a synthetic end position on the location
+                // for the statement list we synthesize when we down-level an arrow function with
+                // an expression function body. This prevents both comments and source maps from
+                // being emitted for the end position only.
+                statementsLocation = ts.moveRangeEnd(body, -1);
+                var equalsGreaterThanToken = node.equalsGreaterThanToken;
+                if (!ts.nodeIsSynthesized(equalsGreaterThanToken) && !ts.nodeIsSynthesized(body)) {
+                    if (ts.rangeEndIsOnSameLineAsRangeStart(equalsGreaterThanToken, body, currentSourceFile)) {
+                        singleLine = true;
+                    }
+                    else {
+                        multiLine = true;
+                    }
+                }
+                var expression = ts.visitNode(body, visitor, ts.isExpression);
+                var returnStatement = ts.createReturn(expression, /*location*/ body);
+                ts.setEmitFlags(returnStatement, 384 /* NoTokenSourceMaps */ | 32 /* NoTrailingSourceMap */ | 1024 /* NoTrailingComments */);
+                statements.push(returnStatement);
+                // To align with the source map emit for the old emitter, we set a custom
+                // source map location for the close brace.
+                closeBraceLocation = body;
+            }
+            var lexicalEnvironment = context.endLexicalEnvironment();
+            ts.addRange(statements, lexicalEnvironment);
+            // If we added any final generated statements, this must be a multi-line block
+            if (!multiLine && lexicalEnvironment && lexicalEnvironment.length) {
+                multiLine = true;
+            }
+            var block = ts.createBlock(ts.createNodeArray(statements, statementsLocation), node.body, multiLine);
+            if (!multiLine && singleLine) {
+                ts.setEmitFlags(block, 1 /* SingleLine */);
+            }
+            if (closeBraceLocation) {
+                ts.setTokenSourceMapRange(block, 17 /* CloseBraceToken */, closeBraceLocation);
+            }
+            ts.setOriginalNode(block, node.body);
+            return block;
+        }
+        /**
          * Visits an ExpressionStatement that contains a destructuring assignment.
          *
          * @param node An ExpressionStatement node.
@@ -49817,14 +50281,12 @@ var ts;
          */
         function visitParenthesizedExpression(node, needsDestructuringValue) {
             // If we are here it is most likely because our expression is a destructuring assignment.
-            if (needsDestructuringValue) {
+            if (!needsDestructuringValue) {
                 switch (node.expression.kind) {
                     case 183 /* ParenthesizedExpression */:
-                        return ts.createParen(visitParenthesizedExpression(node.expression, /*needsDestructuringValue*/ true), 
-                        /*location*/ node);
+                        return ts.updateParen(node, visitParenthesizedExpression(node.expression, /*needsDestructuringValue*/ false));
                     case 192 /* BinaryExpression */:
-                        return ts.createParen(visitBinaryExpression(node.expression, /*needsDestructuringValue*/ true), 
-                        /*location*/ node);
+                        return ts.updateParen(node, visitBinaryExpression(node.expression, /*needsDestructuringValue*/ false));
                 }
             }
             return ts.visitEachChild(node, visitor, context);
@@ -49838,8 +50300,9 @@ var ts;
          */
         function visitBinaryExpression(node, needsDestructuringValue) {
             // If we are here it is because this is a destructuring assignment.
-            ts.Debug.assert(ts.isDestructuringAssignment(node));
-            return ts.flattenDestructuringAssignment(context, node, needsDestructuringValue, hoistVariableDeclaration, visitor);
+            if (ts.isDestructuringAssignment(node)) {
+                return ts.flattenDestructuringAssignment(node, visitor, context, 0 /* All */, needsDestructuringValue);
+            }
         }
         function visitVariableStatement(node) {
             if (convertedLoopState && (ts.getCombinedNodeFlags(node.declarationList) & 3 /* BlockScoped */) == 0) {
@@ -49851,7 +50314,7 @@ var ts;
                     if (decl.initializer) {
                         var assignment = void 0;
                         if (ts.isBindingPattern(decl.name)) {
-                            assignment = ts.flattenVariableDestructuringToExpression(decl, hoistVariableDeclaration, /*createAssignmentCallback*/ undefined, visitor);
+                            assignment = ts.flattenDestructuringAssignment(decl, visitor, context, 0 /* All */);
                         }
                         else {
                             assignment = ts.createBinary(decl.name, 57 /* EqualsToken */, ts.visitNode(decl.initializer, visitor, ts.isExpression));
@@ -49884,7 +50347,7 @@ var ts;
             var declarationList = ts.createVariableDeclarationList(declarations, /*location*/ node);
             ts.setOriginalNode(declarationList, node);
             ts.setCommentRange(declarationList, node);
-            if (node.transformFlags & 67108864 /* ContainsBindingPattern */
+            if (node.transformFlags & 8388608 /* ContainsBindingPattern */
                 && (ts.isBindingPattern(node.declarations[0].name)
                     || ts.isBindingPattern(ts.lastOrUndefined(node.declarations).name))) {
                 // If the first or last declaration is a binding pattern, we need to modify
@@ -49972,9 +50435,9 @@ var ts;
                 return visitVariableDeclaration(node);
             }
             if (!node.initializer && shouldEmitExplicitInitializerForLetDeclaration(node)) {
-                var clone_5 = ts.getMutableClone(node);
-                clone_5.initializer = ts.createVoidZero();
-                return clone_5;
+                var clone_3 = ts.getMutableClone(node);
+                clone_3.initializer = ts.createVoidZero();
+                return clone_3;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -49986,9 +50449,10 @@ var ts;
         function visitVariableDeclaration(node) {
             // If we are here it is because the name contains a binding pattern.
             if (ts.isBindingPattern(node.name)) {
-                var recordTempVariablesInLine = !enclosingVariableStatement
-                    || !ts.hasModifier(enclosingVariableStatement, 1 /* Export */);
-                return ts.flattenVariableDestructuring(node, /*value*/ undefined, visitor, recordTempVariablesInLine ? undefined : hoistVariableDeclaration);
+                var hoistTempVariables = enclosingVariableStatement
+                    && ts.hasModifier(enclosingVariableStatement, 1 /* Export */);
+                return ts.flattenDestructuringBinding(node, visitor, context, 0 /* All */, 
+                /*value*/ undefined, hoistTempVariables);
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -50032,7 +50496,118 @@ var ts;
             return convertIterationStatementBodyIfNecessary(node, convertForOfToFor);
         }
         function convertForOfToFor(node, convertedLoopBodyStatements) {
-            return ts.convertForOf(node, convertedLoopBodyStatements, visitor, enableSubstitutionsForBlockScopedBindings, context, /*transformRest*/ false);
+            // The following ES6 code:
+            //
+            //    for (let v of expr) { }
+            //
+            // should be emitted as
+            //
+            //    for (var _i = 0, _a = expr; _i < _a.length; _i++) {
+            //        var v = _a[_i];
+            //    }
+            //
+            // where _a and _i are temps emitted to capture the RHS and the counter,
+            // respectively.
+            // When the left hand side is an expression instead of a let declaration,
+            // the "let v" is not emitted.
+            // When the left hand side is a let/const, the v is renamed if there is
+            // another v in scope.
+            // Note that all assignments to the LHS are emitted in the body, including
+            // all destructuring.
+            // Note also that because an extra statement is needed to assign to the LHS,
+            // for-of bodies are always emitted as blocks.
+            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
+            var initializer = node.initializer;
+            var statements = [];
+            // In the case where the user wrote an identifier as the RHS, like this:
+            //
+            //     for (let v of arr) { }
+            //
+            // we don't want to emit a temporary variable for the RHS, just use it directly.
+            var counter = ts.createLoopVariable();
+            var rhsReference = expression.kind === 70 /* Identifier */
+                ? ts.createUniqueName(expression.text)
+                : ts.createTempVariable(/*recordTempVariable*/ undefined);
+            var elementAccess = ts.createElementAccess(rhsReference, counter);
+            // Initialize LHS
+            // var v = _a[_i];
+            if (ts.isVariableDeclarationList(initializer)) {
+                if (initializer.flags & 3 /* BlockScoped */) {
+                    enableSubstitutionsForBlockScopedBindings();
+                }
+                var firstOriginalDeclaration = ts.firstOrUndefined(initializer.declarations);
+                if (firstOriginalDeclaration && ts.isBindingPattern(firstOriginalDeclaration.name)) {
+                    // This works whether the declaration is a var, let, or const.
+                    // It will use rhsIterationValue _a[_i] as the initializer.
+                    var declarations = ts.flattenDestructuringBinding(firstOriginalDeclaration, visitor, context, 0 /* All */, elementAccess);
+                    var declarationList = ts.createVariableDeclarationList(declarations, /*location*/ initializer);
+                    ts.setOriginalNode(declarationList, initializer);
+                    // Adjust the source map range for the first declaration to align with the old
+                    // emitter.
+                    var firstDeclaration = declarations[0];
+                    var lastDeclaration = ts.lastOrUndefined(declarations);
+                    ts.setSourceMapRange(declarationList, ts.createRange(firstDeclaration.pos, lastDeclaration.end));
+                    statements.push(ts.createVariableStatement(
+                    /*modifiers*/ undefined, declarationList));
+                }
+                else {
+                    // The following call does not include the initializer, so we have
+                    // to emit it separately.
+                    statements.push(ts.createVariableStatement(
+                    /*modifiers*/ undefined, ts.setOriginalNode(ts.createVariableDeclarationList([
+                        ts.createVariableDeclaration(firstOriginalDeclaration ? firstOriginalDeclaration.name : ts.createTempVariable(/*recordTempVariable*/ undefined), 
+                        /*type*/ undefined, ts.createElementAccess(rhsReference, counter))
+                    ], /*location*/ ts.moveRangePos(initializer, -1)), initializer), 
+                    /*location*/ ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            else {
+                // Initializer is an expression. Emit the expression in the body, so that it's
+                // evaluated on every iteration.
+                var assignment = ts.createAssignment(initializer, elementAccess);
+                if (ts.isDestructuringAssignment(assignment)) {
+                    // This is a destructuring pattern, so we flatten the destructuring instead.
+                    statements.push(ts.createStatement(ts.flattenDestructuringAssignment(assignment, visitor, context, 0 /* All */)));
+                }
+                else {
+                    // Currently there is not way to check that assignment is binary expression of destructing assignment
+                    // so we have to cast never type to binaryExpression
+                    assignment.end = initializer.end;
+                    statements.push(ts.createStatement(assignment, /*location*/ ts.moveRangeEnd(initializer, -1)));
+                }
+            }
+            var bodyLocation;
+            var statementsLocation;
+            if (convertedLoopBodyStatements) {
+                ts.addRange(statements, convertedLoopBodyStatements);
+            }
+            else {
+                var statement = ts.visitNode(node.statement, visitor, ts.isStatement);
+                if (ts.isBlock(statement)) {
+                    ts.addRange(statements, statement.statements);
+                    bodyLocation = statement;
+                    statementsLocation = statement.statements;
+                }
+                else {
+                    statements.push(statement);
+                }
+            }
+            // The old emitter does not emit source maps for the expression
+            ts.setEmitFlags(expression, 48 /* NoSourceMap */ | ts.getEmitFlags(expression));
+            // The old emitter does not emit source maps for the block.
+            // We add the location to preserve comments.
+            var body = ts.createBlock(ts.createNodeArray(statements, /*location*/ statementsLocation), 
+            /*location*/ bodyLocation);
+            ts.setEmitFlags(body, 48 /* NoSourceMap */ | 384 /* NoTokenSourceMaps */);
+            var forStatement = ts.createFor(ts.setEmitFlags(ts.createVariableDeclarationList([
+                ts.createVariableDeclaration(counter, /*type*/ undefined, ts.createLiteral(0), /*location*/ ts.moveRangePos(node.expression, -1)),
+                ts.createVariableDeclaration(rhsReference, /*type*/ undefined, expression, /*location*/ node.expression)
+            ], /*location*/ node.expression), 1048576 /* NoHoisting */), ts.createLessThan(counter, ts.createPropertyAccess(rhsReference, "length"), 
+            /*location*/ node.expression), ts.createPostfixIncrement(counter, /*location*/ node.expression), body, 
+            /*location*/ node);
+            // Disable trailing source maps for the OpenParenToken to align source map emit with the old emitter.
+            ts.setEmitFlags(forStatement, 256 /* NoTokenTrailingSourceMaps */);
+            return forStatement;
         }
         /**
          * Visits an ObjectLiteralExpression with computed propety names.
@@ -50048,7 +50623,7 @@ var ts;
             var numInitialProperties = numProperties;
             for (var i = 0; i < numProperties; i++) {
                 var property = properties[i];
-                if (property.transformFlags & 134217728 /* ContainsYield */
+                if (property.transformFlags & 16777216 /* ContainsYield */
                     || property.name.kind === 142 /* ComputedPropertyName */) {
                     numInitialProperties = i;
                     break;
@@ -50061,7 +50636,7 @@ var ts;
             // Write out the first non-computed properties, then emit the rest through indexing on the temp variable.
             var expressions = [];
             var assignment = ts.createAssignment(temp, ts.setEmitFlags(ts.createObjectLiteral(ts.visitNodes(properties, visitor, ts.isObjectLiteralElementLike, 0, numInitialProperties), 
-            /*location*/ undefined, node.multiLine), 524288 /* Indented */));
+            /*location*/ undefined, node.multiLine), 32768 /* Indented */));
             if (node.multiLine) {
                 assignment.startsOnNewLine = true;
             }
@@ -50159,22 +50734,22 @@ var ts;
             var currentState = convertedLoopState;
             convertedLoopState = outerConvertedLoopState;
             if (loopOutParameters.length) {
-                var statements_3 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
-                copyOutParameters(loopOutParameters, 1 /* ToOutParameter */, statements_3);
-                loopBody = ts.createBlock(statements_3, /*location*/ undefined, /*multiline*/ true);
+                var statements_4 = ts.isBlock(loopBody) ? loopBody.statements.slice() : [loopBody];
+                copyOutParameters(loopOutParameters, 1 /* ToOutParameter */, statements_4);
+                loopBody = ts.createBlock(statements_4, /*location*/ undefined, /*multiline*/ true);
             }
             if (!ts.isBlock(loopBody)) {
                 loopBody = ts.createBlock([loopBody], /*location*/ undefined, /*multiline*/ true);
             }
             var isAsyncBlockContainingAwait = enclosingNonArrowFunction
-                && (ts.getEmitFlags(enclosingNonArrowFunction) & 2097152 /* AsyncFunctionBody */) !== 0
-                && (node.statement.transformFlags & 134217728 /* ContainsYield */) !== 0;
+                && (ts.getEmitFlags(enclosingNonArrowFunction) & 131072 /* AsyncFunctionBody */) !== 0
+                && (node.statement.transformFlags & 16777216 /* ContainsYield */) !== 0;
             var loopBodyFlags = 0;
             if (currentState.containsLexicalThis) {
-                loopBodyFlags |= 256 /* CapturesThis */;
+                loopBodyFlags |= 8 /* CapturesThis */;
             }
             if (isAsyncBlockContainingAwait) {
-                loopBodyFlags |= 2097152 /* AsyncFunctionBody */;
+                loopBodyFlags |= 131072 /* AsyncFunctionBody */;
             }
             var convertedLoopVariable = ts.createVariableStatement(
             /*modifiers*/ undefined, ts.setEmitFlags(ts.createVariableDeclarationList([
@@ -50184,7 +50759,7 @@ var ts;
                 /*name*/ undefined, 
                 /*typeParameters*/ undefined, loopParameters, 
                 /*type*/ undefined, loopBody), loopBodyFlags))
-            ]), 16777216 /* NoHoisting */));
+            ]), 1048576 /* NoHoisting */));
             var statements = [convertedLoopVariable];
             var extraVariableDeclarations;
             // propagate state from the inner loop to the outer loop if necessary
@@ -50465,7 +51040,7 @@ var ts;
             ts.Debug.assert(ts.isBindingPattern(node.variableDeclaration.name));
             var temp = ts.createTempVariable(undefined);
             var newVariableDeclaration = ts.createVariableDeclaration(temp, undefined, undefined, node.variableDeclaration);
-            var vars = ts.flattenVariableDestructuring(node.variableDeclaration, temp, visitor);
+            var vars = ts.flattenDestructuringBinding(node.variableDeclaration, visitor, context, 0 /* All */, temp);
             var list = ts.createVariableDeclarationList(vars, /*location*/ node.variableDeclaration, /*flags*/ node.variableDeclaration.flags);
             var destructure = ts.createVariableStatement(undefined, list);
             return ts.updateCatchClause(node, newVariableDeclaration, addStatementToStartOfBlock(node.block, destructure));
@@ -50486,7 +51061,7 @@ var ts;
             // Methods with computed property names are handled in visitObjectLiteralExpression.
             ts.Debug.assert(!ts.isComputedPropertyName(node.name));
             var functionExpression = transformFunctionLikeToExpression(node, /*location*/ ts.moveRangePos(node, -1), /*name*/ undefined);
-            ts.setEmitFlags(functionExpression, 16384 /* NoLeadingComments */ | ts.getEmitFlags(functionExpression));
+            ts.setEmitFlags(functionExpression, 512 /* NoLeadingComments */ | ts.getEmitFlags(functionExpression));
             return ts.createPropertyAssignment(node.name, functionExpression, 
             /*location*/ node);
         }
@@ -50533,10 +51108,10 @@ var ts;
             // because we contain a SpreadElementExpression.
             var _a = ts.createCallBinding(node.expression, hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
             if (node.expression.kind === 96 /* SuperKeyword */) {
-                ts.setEmitFlags(thisArg, 128 /* NoSubstitution */);
+                ts.setEmitFlags(thisArg, 4 /* NoSubstitution */);
             }
             var resultingCall;
-            if (node.transformFlags & 8388608 /* ContainsSpreadExpression */) {
+            if (node.transformFlags & 524288 /* ContainsSpread */) {
                 // [source]
                 //      f(...a, b)
                 //      x.m(...a, b)
@@ -50567,7 +51142,7 @@ var ts;
             }
             if (node.expression.kind === 96 /* SuperKeyword */) {
                 var actualThis = ts.createThis();
-                ts.setEmitFlags(actualThis, 128 /* NoSubstitution */);
+                ts.setEmitFlags(actualThis, 4 /* NoSubstitution */);
                 var initializer = ts.createLogicalOr(resultingCall, actualThis);
                 return assignToCapturedThis
                     ? ts.createAssignment(ts.createIdentifier("_this"), initializer)
@@ -50582,7 +51157,7 @@ var ts;
          */
         function visitNewExpression(node) {
             // We are here because we contain a SpreadElementExpression.
-            ts.Debug.assert((node.transformFlags & 8388608 /* ContainsSpreadExpression */) !== 0);
+            ts.Debug.assert((node.transformFlags & 524288 /* ContainsSpread */) !== 0);
             // [source]
             //      new C(...a)
             //
@@ -50632,6 +51207,9 @@ var ts;
             return ts.createArrayLiteral(ts.visitNodes(ts.createNodeArray(chunk, /*location*/ undefined, hasTrailingComma), visitor, ts.isExpression), 
             /*location*/ undefined, multiLine);
         }
+        function visitSpreadElement(node) {
+            return ts.visitNode(node.expression, visitor, ts.isExpression);
+        }
         /**
          * Transforms the expression of a SpreadExpression node.
          *
@@ -50798,18 +51376,6 @@ var ts;
                 ? ts.createPropertyAccess(ts.createIdentifier("_super"), "prototype")
                 : ts.createIdentifier("_super");
         }
-        function visitSourceFileNode(node) {
-            var _a = ts.span(node.statements, ts.isPrologueDirective), prologue = _a[0], remaining = _a[1];
-            var statements = [];
-            startLexicalEnvironment();
-            ts.addRange(statements, prologue);
-            ts.addCaptureThisForNodeIfNeeded(statements, node, enableSubstitutionsForCapturedThis);
-            ts.addRange(statements, ts.visitNodes(ts.createNodeArray(remaining), visitor, ts.isStatement));
-            ts.addRange(statements, endLexicalEnvironment());
-            var clone = ts.getMutableClone(node);
-            clone.statements = ts.createNodeArray(statements, /*location*/ node.statements);
-            return clone;
-        }
         /**
          * Called by the printer just before a node is printed.
          *
@@ -50935,7 +51501,7 @@ var ts;
         function substituteThisKeyword(node) {
             if (enabledSubstitutions & 1 /* CapturedThis */
                 && enclosingFunction
-                && ts.getEmitFlags(enclosingFunction) & 256 /* CapturesThis */) {
+                && ts.getEmitFlags(enclosingFunction) & 8 /* CapturesThis */) {
                 return ts.createIdentifier("_this", /*location*/ node);
             }
             return node;
@@ -50948,8 +51514,7 @@ var ts;
             if (!constructor || !hasExtendsClause) {
                 return false;
             }
-            var parameter = ts.singleOrUndefined(constructor.parameters);
-            if (!parameter || !ts.nodeIsSynthesized(parameter) || !parameter.dotDotDotToken) {
+            if (ts.some(constructor.parameters)) {
                 return false;
             }
             var statement = ts.firstOrUndefined(constructor.body.statements);
@@ -50969,10 +51534,24 @@ var ts;
                 return false;
             }
             var expression = callArgument.expression;
-            return ts.isIdentifier(expression) && expression === parameter.name;
+            return ts.isIdentifier(expression) && expression.text === "arguments";
         }
     }
     ts.transformES2015 = transformES2015;
+    function createExtendsHelper(context, name) {
+        context.requestEmitHelper(extendsHelper);
+        return ts.createCall(ts.getHelperName("__extends"), 
+        /*typeArguments*/ undefined, [
+            name,
+            ts.createIdentifier("_super")
+        ]);
+    }
+    var extendsHelper = {
+        name: "typescript:extends",
+        scoped: false,
+        priority: 0,
+        text: "\n            var __extends = (this && this.__extends) || function (d, b) {\n                for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n                function __() { this.constructor = d; }\n                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n            };"
+    };
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
 /// <reference path="../visitor.ts" />
@@ -51154,7 +51733,7 @@ var ts;
         _a[7 /* Endfinally */] = "endfinally",
         _a));
     function transformGenerators(context) {
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var resumeLexicalEnvironment = context.resumeLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistFunctionDeclaration = context.hoistFunctionDeclaration, hoistVariableDeclaration = context.hoistVariableDeclaration;
         var compilerOptions = context.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var resolver = context.getEmitResolver();
@@ -51204,15 +51783,15 @@ var ts;
         var withBlockStack; // A stack containing `with` blocks.
         return transformSourceFile;
         function transformSourceFile(node) {
-            if (ts.isDeclarationFile(node)) {
+            if (ts.isDeclarationFile(node)
+                || (node.transformFlags & 512 /* ContainsGenerator */) === 0) {
                 return node;
             }
-            if (node.transformFlags & 8192 /* ContainsGenerator */) {
-                currentSourceFile = node;
-                node = ts.visitEachChild(node, visitor, context);
-                currentSourceFile = undefined;
-            }
-            return node;
+            currentSourceFile = node;
+            var visited = ts.visitEachChild(node, visitor, context);
+            ts.addEmitHelpers(visited, context.readEmitHelpers());
+            currentSourceFile = undefined;
+            return visited;
         }
         /**
          * Visits a node.
@@ -51227,10 +51806,10 @@ var ts;
             else if (inGeneratorFunctionBody) {
                 return visitJavaScriptInGeneratorFunctionBody(node);
             }
-            else if (transformFlags & 4096 /* Generator */) {
+            else if (transformFlags & 256 /* Generator */) {
                 return visitGenerator(node);
             }
-            else if (transformFlags & 8192 /* ContainsGenerator */) {
+            else if (transformFlags & 512 /* ContainsGenerator */) {
                 return ts.visitEachChild(node, visitor, context);
             }
             else {
@@ -51283,10 +51862,10 @@ var ts;
                 case 216 /* ReturnStatement */:
                     return visitReturnStatement(node);
                 default:
-                    if (node.transformFlags & 134217728 /* ContainsYield */) {
+                    if (node.transformFlags & 16777216 /* ContainsYield */) {
                         return visitJavaScriptContainingYield(node);
                     }
-                    else if (node.transformFlags & (8192 /* ContainsGenerator */ | 268435456 /* ContainsHoistedDeclarationOrCompletion */)) {
+                    else if (node.transformFlags & (512 /* ContainsGenerator */ | 33554432 /* ContainsHoistedDeclarationOrCompletion */)) {
                         return ts.visitEachChild(node, visitor, context);
                     }
                     else {
@@ -51348,12 +51927,11 @@ var ts;
          */
         function visitFunctionDeclaration(node) {
             // Currently, we only support generators that were originally async functions.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
                 node = ts.setOriginalNode(ts.createFunctionDeclaration(
-                /*decorators*/ undefined, 
-                /*modifiers*/ undefined, 
+                /*decorators*/ undefined, node.modifiers, 
                 /*asteriskToken*/ undefined, node.name, 
-                /*typeParameters*/ undefined, node.parameters, 
+                /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
                 /*type*/ undefined, transformGeneratorFunctionBody(node.body), 
                 /*location*/ node), node);
             }
@@ -51387,11 +51965,11 @@ var ts;
          */
         function visitFunctionExpression(node) {
             // Currently, we only support generators that were originally async functions.
-            if (node.asteriskToken && ts.getEmitFlags(node) & 2097152 /* AsyncFunctionBody */) {
+            if (node.asteriskToken && ts.getEmitFlags(node) & 131072 /* AsyncFunctionBody */) {
                 node = ts.setOriginalNode(ts.createFunctionExpression(
                 /*modifiers*/ undefined, 
                 /*asteriskToken*/ undefined, node.name, 
-                /*typeParameters*/ undefined, node.parameters, 
+                /*typeParameters*/ undefined, ts.visitParameterList(node.parameters, visitor, context), 
                 /*type*/ undefined, transformGeneratorFunctionBody(node.body), 
                 /*location*/ node), node);
             }
@@ -51460,7 +52038,7 @@ var ts;
             operationLocations = undefined;
             state = ts.createTempVariable(/*recordTempVariable*/ undefined);
             // Build the generator
-            startLexicalEnvironment();
+            resumeLexicalEnvironment();
             var statementOffset = ts.addPrologueDirectives(statements, body.statements, /*ensureUseStrict*/ false, visitor);
             transformAndEmitStatements(body.statements, statementOffset);
             var buildResult = build();
@@ -51491,13 +52069,13 @@ var ts;
          * @param node The node to visit.
          */
         function visitVariableStatement(node) {
-            if (node.transformFlags & 134217728 /* ContainsYield */) {
+            if (node.transformFlags & 16777216 /* ContainsYield */) {
                 transformAndEmitVariableDeclarationList(node.declarationList);
                 return undefined;
             }
             else {
                 // Do not hoist custom prologues.
-                if (ts.getEmitFlags(node) & 8388608 /* CustomPrologue */) {
+                if (ts.getEmitFlags(node) & 524288 /* CustomPrologue */) {
                     return node;
                 }
                 for (var _i = 0, _a = node.declarationList.declarations; _i < _a.length; _i++) {
@@ -51614,10 +52192,10 @@ var ts;
                 //      _a = a();
                 //  .yield resumeLabel
                 //      _a + %sent% + c()
-                var clone_6 = ts.getMutableClone(node);
-                clone_6.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
-                clone_6.right = ts.visitNode(node.right, visitor, ts.isExpression);
-                return clone_6;
+                var clone_4 = ts.getMutableClone(node);
+                clone_4.left = cacheExpression(ts.visitNode(node.left, visitor, ts.isExpression));
+                clone_4.right = ts.visitNode(node.right, visitor, ts.isExpression);
+                return clone_4;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -51770,7 +52348,7 @@ var ts;
          * @param node The node to visit.
          */
         function visitArrayLiteralExpression(node) {
-            return visitElements(node.elements, node.multiLine);
+            return visitElements(node.elements, /*leadingElement*/ undefined, /*location*/ undefined, node.multiLine);
         }
         /**
          * Visits an array of expressions containing one or more YieldExpression nodes
@@ -51779,7 +52357,7 @@ var ts;
          * @param elements The elements to visit.
          * @param multiLine Whether array literals created should be emitted on multiple lines.
          */
-        function visitElements(elements, _multiLine) {
+        function visitElements(elements, leadingElement, location, multiLine) {
             // [source]
             //      ar = [1, yield, 2];
             //
@@ -51793,19 +52371,24 @@ var ts;
             var temp = declareLocal();
             var hasAssignedTemp = false;
             if (numInitialElements > 0) {
-                emitAssignment(temp, ts.createArrayLiteral(ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements)));
+                var initialElements = ts.visitNodes(elements, visitor, ts.isExpression, 0, numInitialElements);
+                emitAssignment(temp, ts.createArrayLiteral(leadingElement
+                    ? [leadingElement].concat(initialElements) : initialElements));
+                leadingElement = undefined;
                 hasAssignedTemp = true;
             }
             var expressions = ts.reduceLeft(elements, reduceElement, [], numInitialElements);
             return hasAssignedTemp
-                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                : ts.createArrayLiteral(expressions);
+                ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, /*location*/ undefined, multiLine)])
+                : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, location, multiLine);
             function reduceElement(expressions, element) {
                 if (containsYield(element) && expressions.length > 0) {
                     emitAssignment(temp, hasAssignedTemp
-                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions)])
-                        : ts.createArrayLiteral(expressions));
+                        ? ts.createArrayConcat(temp, [ts.createArrayLiteral(expressions, /*location*/ undefined, multiLine)])
+                        : ts.createArrayLiteral(leadingElement ? [leadingElement].concat(expressions) : expressions, 
+                        /*location*/ undefined, multiLine));
                     hasAssignedTemp = true;
+                    leadingElement = undefined;
                     expressions = [];
                 }
                 expressions.push(ts.visitNode(element, visitor, ts.isExpression));
@@ -51871,10 +52454,10 @@ var ts;
                 //  .yield resumeLabel
                 //  .mark resumeLabel
                 //      a = _a[%sent%]
-                var clone_7 = ts.getMutableClone(node);
-                clone_7.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
-                clone_7.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
-                return clone_7;
+                var clone_5 = ts.getMutableClone(node);
+                clone_5.expression = cacheExpression(ts.visitNode(node.expression, visitor, ts.isLeftHandSideExpression));
+                clone_5.argumentExpression = ts.visitNode(node.argumentExpression, visitor, ts.isExpression);
+                return clone_5;
             }
             return ts.visitEachChild(node, visitor, context);
         }
@@ -51909,7 +52492,8 @@ var ts;
                 //  .mark resumeLabel
                 //      new (_b.apply(_a, _c.concat([%sent%, 2])));
                 var _a = ts.createCallBinding(ts.createPropertyAccess(node.expression, "bind"), hoistVariableDeclaration), target = _a.target, thisArg = _a.thisArg;
-                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments)), 
+                return ts.setOriginalNode(ts.createNew(ts.createFunctionApply(cacheExpression(ts.visitNode(target, visitor, ts.isExpression)), thisArg, visitElements(node.arguments, 
+                /*leadingElement*/ ts.createVoidZero())), 
                 /*typeArguments*/ undefined, [], 
                 /*location*/ node), node);
             }
@@ -52532,7 +53116,7 @@ var ts;
             }
         }
         function containsYield(node) {
-            return node && (node.transformFlags & 134217728 /* ContainsYield */) !== 0;
+            return node && (node.transformFlags & 16777216 /* ContainsYield */) !== 0;
         }
         function countInitialNodesWithoutYield(nodes) {
             var numNodes = nodes.length;
@@ -52562,12 +53146,12 @@ var ts;
                 if (ts.isIdentifier(original) && original.parent) {
                     var declaration = resolver.getReferencedValueDeclaration(original);
                     if (declaration) {
-                        var name_35 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
-                        if (name_35) {
-                            var clone_8 = ts.getMutableClone(name_35);
-                            ts.setSourceMapRange(clone_8, node);
-                            ts.setCommentRange(clone_8, node);
-                            return clone_8;
+                        var name_36 = ts.getProperty(renamedCatchVariableDeclarations, String(ts.getOriginalNodeId(declaration)));
+                        if (name_36) {
+                            var clone_6 = ts.getMutableClone(name_36);
+                            ts.setSourceMapRange(clone_6, node);
+                            ts.setCommentRange(clone_6, node);
+                            return clone_6;
                         }
                     }
                 }
@@ -53153,18 +53737,14 @@ var ts;
             currentExceptionBlock = undefined;
             withBlockStack = undefined;
             var buildResult = buildStatements();
-            return ts.createCall(ts.createHelperName(currentSourceFile.externalHelpersModuleName, "__generator"), 
-            /*typeArguments*/ undefined, [
-                ts.createThis(),
-                ts.setEmitFlags(ts.createFunctionExpression(
-                /*modifiers*/ undefined, 
-                /*asteriskToken*/ undefined, 
-                /*name*/ undefined, 
-                /*typeParameters*/ undefined, [ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, state)], 
-                /*type*/ undefined, ts.createBlock(buildResult, 
-                /*location*/ undefined, 
-                /*multiLine*/ buildResult.length > 0)), 4194304 /* ReuseTempVariableScope */)
-            ]);
+            return createGeneratorHelper(context, ts.setEmitFlags(ts.createFunctionExpression(
+            /*modifiers*/ undefined, 
+            /*asteriskToken*/ undefined, 
+            /*name*/ undefined, 
+            /*typeParameters*/ undefined, [ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, state)], 
+            /*type*/ undefined, ts.createBlock(buildResult, 
+            /*location*/ undefined, 
+            /*multiLine*/ buildResult.length > 0)), 262144 /* ReuseTempVariableScope */));
         }
         /**
          * Builds the statements for the generator function body.
@@ -53535,6 +54115,76 @@ var ts;
         }
     }
     ts.transformGenerators = transformGenerators;
+    function createGeneratorHelper(context, body) {
+        context.requestEmitHelper(generatorHelper);
+        return ts.createCall(ts.getHelperName("__generator"), 
+        /*typeArguments*/ undefined, [ts.createThis(), body]);
+    }
+    // The __generator helper is used by down-level transformations to emulate the runtime
+    // semantics of an ES2015 generator function. When called, this helper returns an
+    // object that implements the Iterator protocol, in that it has `next`, `return`, and
+    // `throw` methods that step through the generator when invoked.
+    //
+    // parameters:
+    //  thisArg  The value to use as the `this` binding for the transformed generator body.
+    //  body     A function that acts as the transformed generator body.
+    //
+    // variables:
+    //  _       Persistent state for the generator that is shared between the helper and the
+    //          generator body. The state object has the following members:
+    //            sent() - A method that returns or throws the current completion value.
+    //            label  - The next point at which to resume evaluation of the generator body.
+    //            trys   - A stack of protected regions (try/catch/finally blocks).
+    //            ops    - A stack of pending instructions when inside of a finally block.
+    //  f       A value indicating whether the generator is executing.
+    //  y       An iterator to delegate for a yield*.
+    //  t       A temporary variable that holds one of the following values (note that these
+    //          cases do not overlap):
+    //          - The completion value when resuming from a `yield` or `yield*`.
+    //          - The error value for a catch block.
+    //          - The current protected region (array of try/catch/finally/end labels).
+    //          - The verb (`next`, `throw`, or `return` method) to delegate to the expression
+    //            of a `yield*`.
+    //          - The result of evaluating the verb delegated to the expression of a `yield*`.
+    //
+    // functions:
+    //  verb(n)     Creates a bound callback to the `step` function for opcode `n`.
+    //  step(op)    Evaluates opcodes in a generator body until execution is suspended or
+    //              completed.
+    //
+    // The __generator helper understands a limited set of instructions:
+    //  0: next(value?)     - Start or resume the generator with the specified value.
+    //  1: throw(error)     - Resume the generator with an exception. If the generator is
+    //                        suspended inside of one or more protected regions, evaluates
+    //                        any intervening finally blocks between the current label and
+    //                        the nearest catch block or function boundary. If uncaught, the
+    //                        exception is thrown to the caller.
+    //  2: return(value?)   - Resume the generator as if with a return. If the generator is
+    //                        suspended inside of one or more protected regions, evaluates any
+    //                        intervening finally blocks.
+    //  3: break(label)     - Jump to the specified label. If the label is outside of the
+    //                        current protected region, evaluates any intervening finally
+    //                        blocks.
+    //  4: yield(value?)    - Yield execution to the caller with an optional value. When
+    //                        resumed, the generator will continue at the next label.
+    //  5: yield*(value)    - Delegates evaluation to the supplied iterator. When
+    //                        delegation completes, the generator will continue at the next
+    //                        label.
+    //  6: catch(error)     - Handles an exception thrown from within the generator body. If
+    //                        the current label is inside of one or more protected regions,
+    //                        evaluates any intervening finally blocks between the current
+    //                        label and the nearest catch block or function boundary. If
+    //                        uncaught, the exception is thrown to the caller.
+    //  7: endfinally       - Ends a finally block, resuming the last instruction prior to
+    //                        entering a finally block.
+    //
+    // For examples of how these are used, see the comments in ./transformers/generators.ts
+    var generatorHelper = {
+        name: "typescript:generator",
+        scoped: false,
+        priority: 6,
+        text: "\n            var __generator = (this && this.__generator) || function (thisArg, body) {\n                var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n                return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n                function verb(n) { return function (v) { return step([n, v]); }; }\n                function step(op) {\n                    if (f) throw new TypeError(\"Generator is already executing.\");\n                    while (_) try {\n                        if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n                        if (y = 0, t) op = [0, t.value];\n                        switch (op[0]) {\n                            case 0: case 1: t = op; break;\n                            case 4: _.label++; return { value: op[1], done: false };\n                            case 5: _.label++; y = op[1]; op = [0]; continue;\n                            case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                            default:\n                                if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                                if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                                if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                                if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                                if (t[2]) _.ops.pop();\n                                _.trys.pop(); continue;\n                        }\n                        op = body.call(thisArg, _);\n                    } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n                    if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n                }\n            };"
+    };
     var _a;
 })(ts || (ts = {}));
 /// <reference path="../factory.ts" />
@@ -53623,13 +54273,32 @@ var ts;
 (function (ts) {
     function transformES2015Module(context) {
         var compilerOptions = context.getCompilerOptions();
+        var previousOnEmitNode = context.onEmitNode;
+        var previousOnSubstituteNode = context.onSubstituteNode;
+        context.onEmitNode = onEmitNode;
+        context.onSubstituteNode = onSubstituteNode;
+        context.enableEmitNotification(261 /* SourceFile */);
+        context.enableSubstitution(70 /* Identifier */);
+        var currentSourceFile;
         return transformSourceFile;
         function transformSourceFile(node) {
             if (ts.isDeclarationFile(node)) {
                 return node;
             }
             if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
-                return ts.visitEachChild(node, visitor, context);
+                var externalHelpersModuleName = ts.getOrCreateExternalHelpersModuleNameIfNeeded(node, compilerOptions);
+                if (externalHelpersModuleName) {
+                    var statements = [];
+                    var statementOffset = ts.addPrologueDirectives(statements, node.statements);
+                    ts.append(statements, ts.createImportDeclaration(
+                    /*decorators*/ undefined, 
+                    /*modifiers*/ undefined, ts.createImportClause(/*name*/ undefined, ts.createNamespaceImport(externalHelpersModuleName)), ts.createLiteral(ts.externalHelpersModuleNameText)));
+                    ts.addRange(statements, ts.visitNodes(node.statements, visitor, ts.isStatement, statementOffset));
+                    return ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
+                }
+                else {
+                    return ts.visitEachChild(node, visitor, context);
+                }
             }
             return node;
         }
@@ -53647,6 +54316,51 @@ var ts;
             // Elide `export=` as it is not legal with --module ES6
             return node.isExportEquals ? undefined : node;
         }
+        //
+        // Emit Notification
+        //
+        /**
+         * Hook for node emit.
+         *
+         * @param emitContext A context hint for the emitter.
+         * @param node The node to emit.
+         * @param emit A callback used to emit the node in the printer.
+         */
+        function onEmitNode(emitContext, node, emitCallback) {
+            if (ts.isSourceFile(node)) {
+                currentSourceFile = node;
+                previousOnEmitNode(emitContext, node, emitCallback);
+                currentSourceFile = undefined;
+            }
+            else {
+                previousOnEmitNode(emitContext, node, emitCallback);
+            }
+        }
+        //
+        // Substitutions
+        //
+        /**
+         * Hooks node substitutions.
+         *
+         * @param emitContext A context hint for the emitter.
+         * @param node The node to substitute.
+         */
+        function onSubstituteNode(emitContext, node) {
+            node = previousOnSubstituteNode(emitContext, node);
+            if (ts.isIdentifier(node) && emitContext === 1 /* Expression */) {
+                return substituteExpressionIdentifier(node);
+            }
+            return node;
+        }
+        function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+            }
+            return node;
+        }
     }
     ts.transformES2015Module = transformES2015Module;
 })(ts || (ts = {}));
@@ -53708,13 +54422,14 @@ var ts;
             // The only exception in this rule is postfix unary operators,
             // see comment to 'substitutePostfixUnaryExpression' for more details
             // Collect information about the external module and dependency groups.
-            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver);
+            moduleInfo = moduleInfoMap[id] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             // Make sure that the name of the 'exports' function does not conflict with
             // existing identifiers.
             exportFunction = exportFunctionsMap[id] = ts.createUniqueName("exports");
             contextObject = ts.createUniqueName("context");
             // Add the body of the module.
             var dependencyGroups = collectDependencyGroups(moduleInfo.externalImports);
+            var moduleBodyBlock = createSystemModuleBody(node, dependencyGroups);
             var moduleBodyFunction = ts.createFunctionExpression(
             /*modifiers*/ undefined, 
             /*asteriskToken*/ undefined, 
@@ -53723,7 +54438,7 @@ var ts;
                 ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, exportFunction),
                 ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, contextObject)
             ], 
-            /*type*/ undefined, createSystemModuleBody(node, dependencyGroups));
+            /*type*/ undefined, moduleBodyBlock);
             // Write the call to `System.register`
             // Clear the emit-helpers flag for later passes since we'll have already used it in the module body
             // So the helper will be emit at the correct position instead of at the top of the source-file
@@ -53735,7 +54450,9 @@ var ts;
                     ? [moduleName, dependencies, moduleBodyFunction]
                     : [dependencies, moduleBodyFunction]))
             ], node.statements));
-            ts.setEmitFlags(updated, ts.getEmitFlags(node) & ~1 /* EmitEmitHelpers */);
+            if (!(compilerOptions.outFile || compilerOptions.out)) {
+                ts.moveEmitHelpers(updated, moduleBodyBlock, function (helper) { return !helper.scoped; });
+            }
             if (noSubstitution) {
                 noSubstitutionMap[id] = noSubstitution;
                 noSubstitution = undefined;
@@ -53835,6 +54552,8 @@ var ts;
                 ts.createVariableDeclaration("__moduleName", 
                 /*type*/ undefined, ts.createLogicalAnd(contextObject, ts.createPropertyAccess(contextObject, "id")))
             ])));
+            // Visit the synthetic external helpers import declaration if present
+            ts.visitNode(moduleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true);
             // Visit the statements of the source file, emitting any transformations into
             // the `executeStatements` array. We do this *before* we fill the `setters` array
             // as we both emit transformations as well as aggregate some data used when creating
@@ -53861,9 +54580,7 @@ var ts;
                 /*multiLine*/ true)))
             ]), 
             /*multiLine*/ true)));
-            var body = ts.createBlock(statements, /*location*/ undefined, /*multiLine*/ true);
-            ts.setEmitFlags(body, 1 /* EmitEmitHelpers */);
-            return body;
+            return ts.createBlock(statements, /*location*/ undefined, /*multiLine*/ true);
         }
         /**
          * Adds an exportStar function to a statement list if it is needed for the file.
@@ -53948,7 +54665,8 @@ var ts;
             var exports = ts.createIdentifier("exports");
             var condition = ts.createStrictInequality(n, ts.createLiteral("default"));
             if (localNames) {
-                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createHasOwnProperty(localNames, n)));
+                condition = ts.createLogicalAnd(condition, ts.createLogicalNot(ts.createCall(ts.createPropertyAccess(localNames, "hasOwnProperty"), 
+                /*typeArguments*/ undefined, [n])));
             }
             return ts.createFunctionDeclaration(
             /*decorators*/ undefined, 
@@ -53964,7 +54682,7 @@ var ts;
                 ts.createForIn(ts.createVariableDeclarationList([
                     ts.createVariableDeclaration(n, /*type*/ undefined)
                 ]), m, ts.createBlock([
-                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 32 /* SingleLine */)
+                    ts.setEmitFlags(ts.createIf(condition, ts.createStatement(ts.createAssignment(ts.createElementAccess(exports, n), ts.createElementAccess(m, n)))), 1 /* SingleLine */)
                 ])),
                 ts.createStatement(ts.createCall(exportFunction, 
                 /*typeArguments*/ undefined, [exports]))
@@ -54237,7 +54955,7 @@ var ts;
          */
         function shouldHoistVariableDeclarationList(node) {
             // hoist only non-block scoped declarations or block scoped declarations parented by source file
-            return (ts.getEmitFlags(node) & 16777216 /* NoHoisting */) === 0
+            return (ts.getEmitFlags(node) & 1048576 /* NoHoisting */) === 0
                 && (enclosingBlockScopedContainer.kind === 261 /* SourceFile */
                     || (ts.getOriginalNode(node).flags & 3 /* BlockScoped */) === 0);
         }
@@ -54250,7 +54968,8 @@ var ts;
         function transformInitializedVariable(node, isExportedDeclaration) {
             var createAssignment = isExportedDeclaration ? createExportedVariableAssignment : createNonExportedVariableAssignment;
             return ts.isBindingPattern(node.name)
-                ? ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createAssignment, destructuringVisitor)
+                ? ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0 /* All */, 
+                /*needsValue*/ false, createAssignment)
                 : createAssignment(node.name, ts.visitNode(node.initializer, destructuringVisitor, ts.isExpression));
         }
         /**
@@ -54314,7 +55033,7 @@ var ts;
          * @param node The node to test.
          */
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432 /* HasEndOfDeclarationMarker */) !== 0;
+            return (ts.getEmitFlags(node) & 2097152 /* HasEndOfDeclarationMarker */) !== 0;
         }
         /**
          * Visits a DeclarationMarker used as a placeholder for the end of a transformed
@@ -54515,7 +55234,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value));
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152 /* NoComments */);
+                ts.setEmitFlags(statement, 1536 /* NoComments */);
             }
             return statement;
         }
@@ -54573,9 +55292,9 @@ var ts;
                     return visitCatchClause(node);
                 case 204 /* Block */:
                     return visitBlock(node);
-                case 294 /* MergeDeclarationMarker */:
+                case 295 /* MergeDeclarationMarker */:
                     return visitMergeDeclarationMarker(node);
-                case 295 /* EndOfDeclarationMarker */:
+                case 296 /* EndOfDeclarationMarker */:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     return destructuringVisitor(node);
@@ -54754,11 +55473,11 @@ var ts;
          * @param node The node to visit.
          */
         function destructuringVisitor(node) {
-            if (node.transformFlags & 16384 /* DestructuringAssignment */
+            if (node.transformFlags & 1024 /* DestructuringAssignment */
                 && node.kind === 192 /* BinaryExpression */) {
                 return visitDestructuringAssignment(node);
             }
-            else if (node.transformFlags & 32768 /* ContainsDestructuringAssignment */) {
+            else if (node.transformFlags & 2048 /* ContainsDestructuringAssignment */) {
                 return ts.visitEachChild(node, destructuringVisitor, context);
             }
             else {
@@ -54772,7 +55491,8 @@ var ts;
          */
         function visitDestructuringAssignment(node) {
             if (hasExportedReferenceInDestructuringTarget(node.left)) {
-                return ts.flattenDestructuringAssignment(context, node, /*needsValue*/ true, hoistVariableDeclaration, destructuringVisitor);
+                return ts.flattenDestructuringAssignment(node, destructuringVisitor, context, 0 /* All */, 
+                /*needsValue*/ true);
             }
             return ts.visitEachChild(node, destructuringVisitor, context);
         }
@@ -54896,6 +55616,13 @@ var ts;
          * @param node The node to substitute.
          */
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             // When we see an identifier in an expression position that
             // points to an imported symbol, we should substitute a qualified
             // reference to the imported symbol if one is needed.
@@ -55043,7 +55770,7 @@ var ts;
             _a[ts.ModuleKind.AMD] = transformAMDModule,
             _a[ts.ModuleKind.UMD] = transformUMDModule,
             _a));
-        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment, hoistVariableDeclaration = context.hoistVariableDeclaration;
+        var startLexicalEnvironment = context.startLexicalEnvironment, endLexicalEnvironment = context.endLexicalEnvironment;
         var compilerOptions = context.getCompilerOptions();
         var resolver = context.getEmitResolver();
         var host = context.getEmitHost();
@@ -55077,7 +55804,7 @@ var ts;
                 return node;
             }
             currentSourceFile = node;
-            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver);
+            currentModuleInfo = moduleInfoMap[ts.getOriginalNodeId(node)] = ts.collectExternalModuleInfo(node, resolver, compilerOptions);
             // Perform the transformation.
             var transformModule = transformModuleDelegates[moduleKind] || transformModuleDelegates[ts.ModuleKind.None];
             var updated = transformModule(node);
@@ -55094,12 +55821,13 @@ var ts;
             startLexicalEnvironment();
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             ts.addRange(statements, endLexicalEnvironment());
             addExportEqualsIfNeeded(statements, /*emitAsReturn*/ false);
             var updated = ts.updateSourceFileNode(node, ts.createNodeArray(statements, node.statements));
             if (currentModuleInfo.hasExportStarsToExportValues) {
-                ts.setEmitFlags(updated, 2 /* EmitExportStar */ | ts.getEmitFlags(node));
+                ts.addEmitHelper(updated, exportStarHelper);
             }
             return updated;
         }
@@ -55119,8 +55847,7 @@ var ts;
          * @param node The SourceFile node.
          */
         function transformUMDModule(node) {
-            var define = ts.createIdentifier("define");
-            ts.setEmitFlags(define, 16 /* UMDDefine */);
+            var define = ts.createRawExpression(umdHelper);
             return transformAsynchronousModule(node, define, /*moduleName*/ undefined, /*includeNonAmdDependencies*/ false);
         }
         /**
@@ -55217,7 +55944,7 @@ var ts;
                 if (includeNonAmdDependencies && importAliasName) {
                     // Set emitFlags on the name of the classDeclaration
                     // This is so that when printer will not substitute the identifier
-                    ts.setEmitFlags(importAliasName, 128 /* NoSubstitution */);
+                    ts.setEmitFlags(importAliasName, 4 /* NoSubstitution */);
                     aliasedModuleNames.push(externalModuleName);
                     importAliasNames.push(ts.createParameter(/*decorators*/ undefined, /*modifiers*/ undefined, /*dotDotDotToken*/ undefined, importAliasName));
                 }
@@ -55237,6 +55964,7 @@ var ts;
             var statements = [];
             var statementOffset = ts.addPrologueDirectives(statements, node.statements, /*ensureUseStrict*/ !compilerOptions.noImplicitUseStrict, sourceElementVisitor);
             // Visit each statement of the module body.
+            ts.append(statements, ts.visitNode(currentModuleInfo.externalHelpersImportDeclaration, sourceElementVisitor, ts.isStatement, /*optional*/ true));
             ts.addRange(statements, ts.visitNodes(node.statements, sourceElementVisitor, ts.isStatement, statementOffset));
             // End the lexical environment for the module body
             // and merge any new lexical declarations.
@@ -55247,7 +55975,7 @@ var ts;
             if (currentModuleInfo.hasExportStarsToExportValues) {
                 // If we have any `export * from ...` declarations
                 // we need to inform the emitter to add the __export helper.
-                ts.setEmitFlags(body, 2 /* EmitExportStar */);
+                ts.addEmitHelper(body, exportStarHelper);
             }
             return body;
         }
@@ -55264,13 +55992,13 @@ var ts;
                 if (emitAsReturn) {
                     var statement = ts.createReturn(currentModuleInfo.exportEquals.expression, 
                     /*location*/ currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 12288 /* NoTokenSourceMaps */ | 49152 /* NoComments */);
+                    ts.setEmitFlags(statement, 384 /* NoTokenSourceMaps */ | 1536 /* NoComments */);
                     statements.push(statement);
                 }
                 else {
                     var statement = ts.createStatement(ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("module"), "exports"), currentModuleInfo.exportEquals.expression), 
                     /*location*/ currentModuleInfo.exportEquals);
-                    ts.setEmitFlags(statement, 49152 /* NoComments */);
+                    ts.setEmitFlags(statement, 1536 /* NoComments */);
                     statements.push(statement);
                 }
             }
@@ -55299,9 +56027,9 @@ var ts;
                     return visitFunctionDeclaration(node);
                 case 226 /* ClassDeclaration */:
                     return visitClassDeclaration(node);
-                case 294 /* MergeDeclarationMarker */:
+                case 295 /* MergeDeclarationMarker */:
                     return visitMergeDeclarationMarker(node);
-                case 295 /* EndOfDeclarationMarker */:
+                case 296 /* EndOfDeclarationMarker */:
                     return visitEndOfDeclarationMarker(node);
                 default:
                     // This visitor does not descend into the tree, as export/import statements
@@ -55590,7 +56318,9 @@ var ts;
          */
         function transformInitializedVariable(node) {
             if (ts.isBindingPattern(node.name)) {
-                return ts.flattenVariableDestructuringToExpression(node, hoistVariableDeclaration, createExportExpression);
+                return ts.flattenDestructuringAssignment(node, 
+                /*visitor*/ undefined, context, 0 /* All */, 
+                /*needsValue*/ false, createExportExpression);
             }
             else {
                 return ts.createAssignment(ts.createPropertyAccess(ts.createIdentifier("exports"), node.name, 
@@ -55623,7 +56353,7 @@ var ts;
          * @param node The node to test.
          */
         function hasAssociatedEndOfDeclarationMarker(node) {
-            return (ts.getEmitFlags(node) & 33554432 /* HasEndOfDeclarationMarker */) !== 0;
+            return (ts.getEmitFlags(node) & 2097152 /* HasEndOfDeclarationMarker */) !== 0;
         }
         /**
          * Visits a DeclarationMarker used as a placeholder for the end of a transformed
@@ -55826,7 +56556,7 @@ var ts;
             var statement = ts.createStatement(createExportExpression(name, value), location);
             ts.startOnNewLine(statement);
             if (!allowComments) {
-                ts.setEmitFlags(statement, 49152 /* NoComments */);
+                ts.setEmitFlags(statement, 1536 /* NoComments */);
             }
             return statement;
         }
@@ -55947,6 +56677,13 @@ var ts;
          * @param node The node to substitute.
          */
         function substituteExpressionIdentifier(node) {
+            if (ts.getEmitFlags(node) & 4096 /* HelperName */) {
+                var externalHelpersModuleName = ts.getExternalHelpersModuleName(currentSourceFile);
+                if (externalHelpersModuleName) {
+                    return ts.createPropertyAccess(externalHelpersModuleName, node);
+                }
+                return node;
+            }
             if (!ts.isGeneratedIdentifier(node) && !ts.isLocalName(node)) {
                 var exportContainer = resolver.getReferencedExportContainer(node, ts.isExportName(node));
                 if (exportContainer && exportContainer.kind === 261 /* SourceFile */) {
@@ -55960,8 +56697,8 @@ var ts;
                         /*location*/ node);
                     }
                     else if (ts.isImportSpecifier(importDeclaration)) {
-                        var name_36 = importDeclaration.propertyName || importDeclaration.name;
-                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_36), 
+                        var name_37 = importDeclaration.propertyName || importDeclaration.name;
+                        return ts.createPropertyAccess(ts.getGeneratedNameForNode(importDeclaration.parent.parent.parent), ts.getSynthesizedClone(name_37), 
                         /*location*/ node);
                     }
                 }
@@ -56057,6 +56794,14 @@ var ts;
         var _a;
     }
     ts.transformModule = transformModule;
+    // emit output for the __export helper function
+    var exportStarHelper = {
+        name: "typescript:export-star",
+        scoped: true,
+        text: "\n            function __export(m) {\n                for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n            }"
+    };
+    // emit output for the UMD helper function.
+    var umdHelper = "\n        (function (dependencies, factory) {\n            if (typeof module === 'object' && typeof module.exports === 'object') {\n                var v = factory(require, exports); if (v !== undefined) module.exports = v;\n            }\n            else if (typeof define === 'function' && define.amd) {\n                define(dependencies, factory);\n            }\n        })";
 })(ts || (ts = {}));
 /// <reference path="visitor.ts" />
 /// <reference path="transformers/ts.ts" />
@@ -56126,23 +56871,29 @@ var ts;
      * @param transforms An array of Transformers.
      */
     function transformFiles(resolver, host, sourceFiles, transformers) {
+        var enabledSyntaxKindFeatures = new Array(298 /* Count */);
+        var lexicalEnvironmentDisabled = false;
+        var lexicalEnvironmentVariableDeclarations;
+        var lexicalEnvironmentFunctionDeclarations;
         var lexicalEnvironmentVariableDeclarationsStack = [];
         var lexicalEnvironmentFunctionDeclarationsStack = [];
-        var enabledSyntaxKindFeatures = new Array(296 /* Count */);
         var lexicalEnvironmentStackOffset = 0;
-        var hoistedVariableDeclarations;
-        var hoistedFunctionDeclarations;
-        var lexicalEnvironmentDisabled;
+        var lexicalEnvironmentSuspended = false;
+        var emitHelpers;
         // The transformation context is provided to each transformer as part of transformer
         // initialization.
         var context = {
             getCompilerOptions: function () { return host.getCompilerOptions(); },
             getEmitResolver: function () { return resolver; },
             getEmitHost: function () { return host; },
-            hoistVariableDeclaration: hoistVariableDeclaration,
-            hoistFunctionDeclaration: hoistFunctionDeclaration,
             startLexicalEnvironment: startLexicalEnvironment,
+            suspendLexicalEnvironment: suspendLexicalEnvironment,
+            resumeLexicalEnvironment: resumeLexicalEnvironment,
             endLexicalEnvironment: endLexicalEnvironment,
+            hoistVariableDeclaration: hoistVariableDeclaration,
+            hoistFunctionDeclaration: hoistFunctionDeclaration,
+            requestEmitHelper: requestEmitHelper,
+            readEmitHelpers: readEmitHelpers,
             onSubstituteNode: function (_emitContext, node) { return node; },
             enableSubstitution: enableSubstitution,
             isSubstitutionEnabled: isSubstitutionEnabled,
@@ -56183,7 +56934,7 @@ var ts;
          */
         function isSubstitutionEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 1 /* Substitution */) !== 0
-                && (ts.getEmitFlags(node) & 128 /* NoSubstitution */) === 0;
+                && (ts.getEmitFlags(node) & 4 /* NoSubstitution */) === 0;
         }
         /**
          * Emits a node with possible substitution.
@@ -56216,7 +56967,7 @@ var ts;
          */
         function isEmitNotificationEnabled(node) {
             return (enabledSyntaxKindFeatures[node.kind] & 2 /* EmitNotifications */) !== 0
-                || (ts.getEmitFlags(node) & 64 /* AdviseOnEmitNode */) !== 0;
+                || (ts.getEmitFlags(node) & 2 /* AdviseOnEmitNode */) !== 0;
         }
         /**
          * Emits a node with possible emit notification.
@@ -56241,11 +56992,11 @@ var ts;
         function hoistVariableDeclaration(name) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
             var decl = ts.createVariableDeclaration(name);
-            if (!hoistedVariableDeclarations) {
-                hoistedVariableDeclarations = [decl];
+            if (!lexicalEnvironmentVariableDeclarations) {
+                lexicalEnvironmentVariableDeclarations = [decl];
             }
             else {
-                hoistedVariableDeclarations.push(decl);
+                lexicalEnvironmentVariableDeclarations.push(decl);
             }
         }
         /**
@@ -56253,11 +57004,11 @@ var ts;
          */
         function hoistFunctionDeclaration(func) {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
-            if (!hoistedFunctionDeclarations) {
-                hoistedFunctionDeclarations = [func];
+            if (!lexicalEnvironmentFunctionDeclarations) {
+                lexicalEnvironmentFunctionDeclarations = [func];
             }
             else {
-                hoistedFunctionDeclarations.push(func);
+                lexicalEnvironmentFunctionDeclarations.push(func);
             }
         }
         /**
@@ -56266,15 +57017,28 @@ var ts;
          */
         function startLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot start a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             // Save the current lexical environment. Rather than resizing the array we adjust the
             // stack size variable. This allows us to reuse existing array slots we've
             // already allocated between transformations to avoid allocation and GC overhead during
             // transformation.
-            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedVariableDeclarations;
-            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = hoistedFunctionDeclarations;
+            lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentVariableDeclarations;
+            lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset] = lexicalEnvironmentFunctionDeclarations;
             lexicalEnvironmentStackOffset++;
-            hoistedVariableDeclarations = undefined;
-            hoistedFunctionDeclarations = undefined;
+            lexicalEnvironmentVariableDeclarations = undefined;
+            lexicalEnvironmentFunctionDeclarations = undefined;
+        }
+        /** Suspends the current lexical environment, usually after visiting a parameter list. */
+        function suspendLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot suspend a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is already suspended.");
+            lexicalEnvironmentSuspended = true;
+        }
+        /** Resumes a suspended lexical environment, usually before visiting a function body. */
+        function resumeLexicalEnvironment() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot resume a lexical environment during the print phase.");
+            ts.Debug.assert(lexicalEnvironmentSuspended, "Lexical environment is not suspended.");
+            lexicalEnvironmentSuspended = false;
         }
         /**
          * Ends a lexical environment. The previous set of hoisted declarations are restored and
@@ -56282,14 +57046,15 @@ var ts;
          */
         function endLexicalEnvironment() {
             ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot end a lexical environment during the print phase.");
+            ts.Debug.assert(!lexicalEnvironmentSuspended, "Lexical environment is suspended.");
             var statements;
-            if (hoistedVariableDeclarations || hoistedFunctionDeclarations) {
-                if (hoistedFunctionDeclarations) {
-                    statements = hoistedFunctionDeclarations.slice();
+            if (lexicalEnvironmentVariableDeclarations || lexicalEnvironmentFunctionDeclarations) {
+                if (lexicalEnvironmentFunctionDeclarations) {
+                    statements = lexicalEnvironmentFunctionDeclarations.slice();
                 }
-                if (hoistedVariableDeclarations) {
+                if (lexicalEnvironmentVariableDeclarations) {
                     var statement = ts.createVariableStatement(
-                    /*modifiers*/ undefined, ts.createVariableDeclarationList(hoistedVariableDeclarations));
+                    /*modifiers*/ undefined, ts.createVariableDeclarationList(lexicalEnvironmentVariableDeclarations));
                     if (!statements) {
                         statements = [statement];
                     }
@@ -56300,10 +57065,25 @@ var ts;
             }
             // Restore the previous lexical environment.
             lexicalEnvironmentStackOffset--;
-            hoistedVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
-            hoistedFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentVariableDeclarations = lexicalEnvironmentVariableDeclarationsStack[lexicalEnvironmentStackOffset];
+            lexicalEnvironmentFunctionDeclarations = lexicalEnvironmentFunctionDeclarationsStack[lexicalEnvironmentStackOffset];
+            if (lexicalEnvironmentStackOffset === 0) {
+                lexicalEnvironmentVariableDeclarationsStack = [];
+                lexicalEnvironmentFunctionDeclarationsStack = [];
+            }
             return statements;
         }
+        function requestEmitHelper(helper) {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            ts.Debug.assert(!helper.scoped, "Cannot request a scoped emit helper.");
+            emitHelpers = ts.append(emitHelpers, helper);
+        }
+        function readEmitHelpers() {
+            ts.Debug.assert(!lexicalEnvironmentDisabled, "Cannot modify the lexical environment during the print phase.");
+            var helpers = emitHelpers;
+            emitHelpers = undefined;
+            return helpers;
+        }
     }
     ts.transformFiles = transformFiles;
     var _a;
@@ -56528,12 +57308,12 @@ var ts;
                 var emitNode = node.emitNode;
                 var emitFlags = emitNode && emitNode.flags;
                 var _a = emitNode && emitNode.sourceMapRange || node, pos = _a.pos, end = _a.end;
-                if (node.kind !== 292 /* NotEmittedStatement */
-                    && (emitFlags & 512 /* NoLeadingSourceMap */) === 0
+                if (node.kind !== 293 /* NotEmittedStatement */
+                    && (emitFlags & 16 /* NoLeadingSourceMap */) === 0
                     && pos >= 0) {
                     emitPos(ts.skipTrivia(currentSourceText, pos));
                 }
-                if (emitFlags & 2048 /* NoNestedSourceMaps */) {
+                if (emitFlags & 64 /* NoNestedSourceMaps */) {
                     disabled = true;
                     emitCallback(emitContext, node);
                     disabled = false;
@@ -56541,8 +57321,8 @@ var ts;
                 else {
                     emitCallback(emitContext, node);
                 }
-                if (node.kind !== 292 /* NotEmittedStatement */
-                    && (emitFlags & 1024 /* NoTrailingSourceMap */) === 0
+                if (node.kind !== 293 /* NotEmittedStatement */
+                    && (emitFlags & 32 /* NoTrailingSourceMap */) === 0
                     && end >= 0) {
                     emitPos(end);
                 }
@@ -56564,13 +57344,13 @@ var ts;
             var emitFlags = emitNode && emitNode.flags;
             var range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
             tokenPos = ts.skipTrivia(currentSourceText, range ? range.pos : tokenPos);
-            if ((emitFlags & 4096 /* NoTokenLeadingSourceMaps */) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 128 /* NoTokenLeadingSourceMaps */) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             tokenPos = emitCallback(token, tokenPos);
             if (range)
                 tokenPos = range.end;
-            if ((emitFlags & 8192 /* NoTokenTrailingSourceMaps */) === 0 && tokenPos >= 0) {
+            if ((emitFlags & 256 /* NoTokenTrailingSourceMaps */) === 0 && tokenPos >= 0) {
                 emitPos(tokenPos);
             }
             return tokenPos;
@@ -56707,7 +57487,7 @@ var ts;
                 var emitFlags = ts.getEmitFlags(node);
                 if ((pos < 0 && end < 0) || (pos === end)) {
                     // Both pos and end are synthesized, so just emit the node without comments.
-                    if (emitFlags & 65536 /* NoNestedComments */) {
+                    if (emitFlags & 2048 /* NoNestedComments */) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -56720,9 +57500,9 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.mark("preEmitNodeWithComment");
                     }
-                    var isEmittedNode = node.kind !== 292 /* NotEmittedStatement */;
-                    var skipLeadingComments = pos < 0 || (emitFlags & 16384 /* NoLeadingComments */) !== 0;
-                    var skipTrailingComments = end < 0 || (emitFlags & 32768 /* NoTrailingComments */) !== 0;
+                    var isEmittedNode = node.kind !== 293 /* NotEmittedStatement */;
+                    var skipLeadingComments = pos < 0 || (emitFlags & 512 /* NoLeadingComments */) !== 0;
+                    var skipTrailingComments = end < 0 || (emitFlags & 1024 /* NoTrailingComments */) !== 0;
                     // Emit leading comments if the position is not synthesized and the node
                     // has not opted out from emitting leading comments.
                     if (!skipLeadingComments) {
@@ -56746,7 +57526,7 @@ var ts;
                     if (extendedDiagnostics) {
                         ts.performance.measure("commentTime", "preEmitNodeWithComment");
                     }
-                    if (emitFlags & 65536 /* NoNestedComments */) {
+                    if (emitFlags & 2048 /* NoNestedComments */) {
                         disabled = true;
                         emitCallback(emitContext, node);
                         disabled = false;
@@ -56778,15 +57558,15 @@ var ts;
             }
             var pos = detachedRange.pos, end = detachedRange.end;
             var emitFlags = ts.getEmitFlags(node);
-            var skipLeadingComments = pos < 0 || (emitFlags & 16384 /* NoLeadingComments */) !== 0;
-            var skipTrailingComments = disabled || end < 0 || (emitFlags & 32768 /* NoTrailingComments */) !== 0;
+            var skipLeadingComments = pos < 0 || (emitFlags & 512 /* NoLeadingComments */) !== 0;
+            var skipTrailingComments = disabled || end < 0 || (emitFlags & 1024 /* NoTrailingComments */) !== 0;
             if (!skipLeadingComments) {
                 emitDetachedCommentsAndUpdateCommentsInfo(detachedRange);
             }
             if (extendedDiagnostics) {
                 ts.performance.measure("commentTime", "preEmitBodyWithDetachedComments");
             }
-            if (emitFlags & 65536 /* NoNestedComments */ && !disabled) {
+            if (emitFlags & 2048 /* NoNestedComments */ && !disabled) {
                 disabled = true;
                 emitCallback(node);
                 disabled = false;
@@ -57241,15 +58021,15 @@ var ts;
             }
         }
         function emitLines(nodes) {
-            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
-                var node = nodes_2[_i];
+            for (var _i = 0, nodes_4 = nodes; _i < nodes_4.length; _i++) {
+                var node = nodes_4[_i];
                 emit(node);
             }
         }
         function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
             var currentWriterPos = writer.getTextPos();
-            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
-                var node = nodes_3[_i];
+            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
+                var node = nodes_5[_i];
                 if (!canEmitFn || canEmitFn(node)) {
                     if (currentWriterPos !== writer.getTextPos()) {
                         write(separator);
@@ -57264,7 +58044,7 @@ var ts;
         }
         function writeJsDocComments(declaration) {
             if (declaration) {
-                var jsDocComments = ts.getJsDocCommentsFromText(declaration, currentText);
+                var jsDocComments = ts.getJSDocCommentRanges(declaration, currentText);
                 ts.emitNewLineBeforeLeadingComments(currentLineMap, writer, declaration, jsDocComments);
                 // jsDoc comments are emitted at /*leading comment1 */space/*leading comment*/space
                 ts.emitComments(currentText, currentLineMap, writer, jsDocComments, /*leadingSeparator*/ false, /*trailingSeparator*/ true, newLine, ts.writeCommentRange);
@@ -57459,9 +58239,9 @@ var ts;
             var count = 0;
             while (true) {
                 count++;
-                var name_37 = baseName + "_" + count;
-                if (!(name_37 in currentIdentifiers)) {
-                    return name_37;
+                var name_38 = baseName + "_" + count;
+                if (!(name_38 in currentIdentifiers)) {
+                    return name_38;
                 }
             }
         }
@@ -57872,6 +58652,9 @@ var ts;
                         case 225 /* FunctionDeclaration */:
                             diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
                             break;
+                        case 228 /* TypeAliasDeclaration */:
+                            diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1;
+                            break;
                         default:
                             ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
                     }
@@ -57968,7 +58751,10 @@ var ts;
             var prevEnclosingDeclaration = enclosingDeclaration;
             enclosingDeclaration = node;
             emitTypeParameters(node.typeParameters);
-            emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), /*isImplementsList*/ false);
+            var interfaceExtendsTypes = ts.filter(ts.getInterfaceBaseTypeNodes(node), function (base) { return ts.isEntityNameExpression(base.expression); });
+            if (interfaceExtendsTypes && interfaceExtendsTypes.length) {
+                emitHeritageClause(interfaceExtendsTypes, /*isImplementsList*/ false);
+            }
             write(" {");
             writeLine();
             increaseIndent();
@@ -58619,87 +59405,6 @@ var ts;
     function emitFiles(resolver, host, targetSourceFile, emitOnlyDtsFiles) {
         var delimiters = createDelimiterMap();
         var brackets = createBracketsMap();
-        // emit output for the __extends helper function
-        var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n    function __() { this.constructor = d; }\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
-        // Emit output for the __assign helper function.
-        // This is typically used for JSX spread attributes,
-        // and can be used for object literal spread properties.
-        var assignHelper = "\nvar __assign = (this && this.__assign) || Object.assign || function(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n        s = arguments[i];\n        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n            t[p] = s[p];\n    }\n    return t;\n};";
-        var restHelper = "\nvar __rest = (this && this.__rest) || function (s, e) {\n    var t = {};\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && !e.indexOf(p))\n        t[p] = s[p];\n    return t;\n};";
-        // emit output for the __decorate helper function
-        var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
-        // emit output for the __metadata helper function
-        var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
-        // emit output for the __param helper function
-        var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n    return function (target, key) { decorator(target, key, paramIndex); }\n};";
-        // emit output for the __awaiter helper function
-        var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments)).next());\n    });\n};";
-        // The __generator helper is used by down-level transformations to emulate the runtime
-        // semantics of an ES2015 generator function. When called, this helper returns an
-        // object that implements the Iterator protocol, in that it has `next`, `return`, and
-        // `throw` methods that step through the generator when invoked.
-        //
-        // parameters:
-        //  thisArg  The value to use as the `this` binding for the transformed generator body.
-        //  body     A function that acts as the transformed generator body.
-        //
-        // variables:
-        //  _       Persistent state for the generator that is shared between the helper and the
-        //          generator body. The state object has the following members:
-        //            sent() - A method that returns or throws the current completion value.
-        //            label  - The next point at which to resume evaluation of the generator body.
-        //            trys   - A stack of protected regions (try/catch/finally blocks).
-        //            ops    - A stack of pending instructions when inside of a finally block.
-        //  f       A value indicating whether the generator is executing.
-        //  y       An iterator to delegate for a yield*.
-        //  t       A temporary variable that holds one of the following values (note that these
-        //          cases do not overlap):
-        //          - The completion value when resuming from a `yield` or `yield*`.
-        //          - The error value for a catch block.
-        //          - The current protected region (array of try/catch/finally/end labels).
-        //          - The verb (`next`, `throw`, or `return` method) to delegate to the expression
-        //            of a `yield*`.
-        //          - The result of evaluating the verb delegated to the expression of a `yield*`.
-        //
-        // functions:
-        //  verb(n)     Creates a bound callback to the `step` function for opcode `n`.
-        //  step(op)    Evaluates opcodes in a generator body until execution is suspended or
-        //              completed.
-        //
-        // The __generator helper understands a limited set of instructions:
-        //  0: next(value?)     - Start or resume the generator with the specified value.
-        //  1: throw(error)     - Resume the generator with an exception. If the generator is
-        //                        suspended inside of one or more protected regions, evaluates
-        //                        any intervening finally blocks between the current label and
-        //                        the nearest catch block or function boundary. If uncaught, the
-        //                        exception is thrown to the caller.
-        //  2: return(value?)   - Resume the generator as if with a return. If the generator is
-        //                        suspended inside of one or more protected regions, evaluates any
-        //                        intervening finally blocks.
-        //  3: break(label)     - Jump to the specified label. If the label is outside of the
-        //                        current protected region, evaluates any intervening finally
-        //                        blocks.
-        //  4: yield(value?)    - Yield execution to the caller with an optional value. When
-        //                        resumed, the generator will continue at the next label.
-        //  5: yield*(value)    - Delegates evaluation to the supplied iterator. When
-        //                        delegation completes, the generator will continue at the next
-        //                        label.
-        //  6: catch(error)     - Handles an exception thrown from within the generator body. If
-        //                        the current label is inside of one or more protected regions,
-        //                        evaluates any intervening finally blocks between the current
-        //                        label and the nearest catch block or function boundary. If
-        //                        uncaught, the exception is thrown to the caller.
-        //  7: endfinally       - Ends a finally block, resuming the last instruction prior to
-        //                        entering a finally block.
-        //
-        // For examples of how these are used, see the comments in ./transformers/generators.ts
-        var generatorHelper = "\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t;\n    return { next: verb(0), \"throw\": verb(1), \"return\": verb(2) };\n    function verb(n) { return function (v) { return step([n, v]); }; }\n    function step(op) {\n        if (f) throw new TypeError(\"Generator is already executing.\");\n        while (_) try {\n            if (f = 1, y && (t = y[op[0] & 2 ? \"return\" : op[0] ? \"throw\" : \"next\"]) && !(t = t.call(y, op[1])).done) return t;\n            if (y = 0, t) op = [0, t.value];\n            switch (op[0]) {\n                case 0: case 1: t = op; break;\n                case 4: _.label++; return { value: op[1], done: false };\n                case 5: _.label++; y = op[1]; op = [0]; continue;\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\n                default:\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                    if (t[2]) _.ops.pop();\n                    _.trys.pop(); continue;\n            }\n            op = body.call(thisArg, _);\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n    }\n};";
-        // emit output for the __export helper function
-        var exportStarHelper = "\nfunction __export(m) {\n    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}";
-        // emit output for the UMD helper function.
-        var umdHelper = "\n(function (dependencies, factory) {\n    if (typeof module === 'object' && typeof module.exports === 'object') {\n        var v = factory(require, exports); if (v !== undefined) module.exports = v;\n    }\n    else if (typeof define === 'function' && define.amd) {\n        define(dependencies, factory);\n    }\n})";
-        var superHelper = "\nconst _super = name => super[name];";
-        var advancedSuperHelper = "\nconst _super = (function (geti, seti) {\n    const cache = Object.create(null);\n    return name => cache[name] || (cache[name] = { get value() { return geti(name); }, set value(v) { seti(name, v); } });\n})(name => super[name], (name, value) => super[name] = value);";
         var compilerOptions = host.getCompilerOptions();
         var languageVersion = ts.getEmitScriptTarget(compilerOptions);
         var moduleKind = ts.getEmitModuleKind(compilerOptions);
@@ -58721,12 +59426,7 @@ var ts;
         var currentSourceFile;
         var currentText;
         var currentFileIdentifiers;
-        var extendsEmitted;
-        var assignEmitted;
-        var restEmitted;
-        var decorateEmitted;
-        var paramEmitted;
-        var awaiterEmitted;
+        var bundledHelpers;
         var isOwnFileEmit;
         var emitSkipped = false;
         var sourceFiles = ts.getSourceFilesToEmit(host, targetSourceFile);
@@ -58779,12 +59479,13 @@ var ts;
             nodeIdToGeneratedName = [];
             autoGeneratedIdToGeneratedName = [];
             generatedNameSet = ts.createMap();
+            bundledHelpers = isBundledEmit ? ts.createMap() : undefined;
             isOwnFileEmit = !isBundledEmit;
             // Emit helpers from all the files
             if (isBundledEmit && moduleKind) {
                 for (var _a = 0, sourceFiles_5 = sourceFiles; _a < sourceFiles_5.length; _a++) {
                     var sourceFile = sourceFiles_5[_a];
-                    emitEmitHelpers(sourceFile);
+                    emitHelpers(sourceFile, /*isBundle*/ true);
                 }
             }
             // Print each transformed source file.
@@ -58796,14 +59497,14 @@ var ts;
             }
             // Write the source map
             if (compilerOptions.sourceMap && !compilerOptions.inlineSourceMap) {
-                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), /*writeByteOrderMark*/ false);
+                ts.writeFile(host, emitterDiagnostics, sourceMapFilePath, sourceMap.getText(), /*writeByteOrderMark*/ false, sourceFiles);
             }
             // Record source map data for the test harness.
             if (sourceMapDataList) {
                 sourceMapDataList.push(sourceMap.getSourceMapData());
             }
             // Write the output file
-            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM);
+            ts.writeFile(host, emitterDiagnostics, jsFilePath, writer.getText(), compilerOptions.emitBOM, sourceFiles);
             // Reset state
             sourceMap.reset();
             comments.reset();
@@ -58811,11 +59512,6 @@ var ts;
             tempFlags = 0 /* Auto */;
             currentSourceFile = undefined;
             currentText = undefined;
-            extendsEmitted = false;
-            assignEmitted = false;
-            decorateEmitted = false;
-            paramEmitted = false;
-            awaiterEmitted = false;
             isOwnFileEmit = false;
         }
         function printSourceFile(node) {
@@ -59279,8 +59975,10 @@ var ts;
                 case 247 /* JsxSelfClosingElement */:
                     return emitJsxSelfClosingElement(node);
                 // Transformation nodes
-                case 293 /* PartiallyEmittedExpression */:
+                case 294 /* PartiallyEmittedExpression */:
                     return emitPartiallyEmittedExpression(node);
+                case 297 /* RawExpression */:
+                    return writeLines(node.text);
             }
         }
         //
@@ -59313,12 +60011,7 @@ var ts;
         // Identifiers
         //
         function emitIdentifier(node) {
-            if (ts.getEmitFlags(node) & 16 /* UMDDefine */) {
-                writeLines(umdHelper);
-            }
-            else {
-                write(getTextOfNode(node, /*includeTrivia*/ false));
-            }
+            write(getTextOfNode(node, /*includeTrivia*/ false));
         }
         //
         // Names
@@ -59579,7 +60272,7 @@ var ts;
                 write("{}");
             }
             else {
-                var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+                var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
                 if (indentedFlag) {
                     increaseIndent();
                 }
@@ -59594,7 +60287,7 @@ var ts;
         function emitPropertyAccessExpression(node) {
             var indentBeforeDot = false;
             var indentAfterDot = false;
-            if (!(ts.getEmitFlags(node) & 1048576 /* NoIndentation */)) {
+            if (!(ts.getEmitFlags(node) & 65536 /* NoIndentation */)) {
                 var dotRangeStart = node.expression.end;
                 var dotRangeEnd = ts.skipTrivia(currentText, node.expression.end) + 1;
                 var dotToken = { kind: 22 /* DotToken */, pos: dotRangeStart, end: dotRangeEnd };
@@ -59801,7 +60494,7 @@ var ts;
             }
         }
         function emitBlockStatements(node) {
-            if (ts.getEmitFlags(node) & 32 /* SingleLine */) {
+            if (ts.getEmitFlags(node) & 1 /* SingleLine */) {
                 emitList(node, node.statements, 384 /* SingleLineBlockStatements */);
             }
             else {
@@ -59980,11 +60673,11 @@ var ts;
             var body = node.body;
             if (body) {
                 if (ts.isBlock(body)) {
-                    var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+                    var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
                     if (indentedFlag) {
                         increaseIndent();
                     }
-                    if (ts.getEmitFlags(node) & 4194304 /* ReuseTempVariableScope */) {
+                    if (ts.getEmitFlags(node) & 262144 /* ReuseTempVariableScope */) {
                         emitSignatureHead(node);
                         emitBlockFunctionBody(body);
                     }
@@ -60022,7 +60715,7 @@ var ts;
             // * The body is explicitly marked as multi-line.
             // * A non-synthesized body's start and end position are on different lines.
             // * Any statement in the body starts on a new line.
-            if (ts.getEmitFlags(body) & 32 /* SingleLine */) {
+            if (ts.getEmitFlags(body) & 1 /* SingleLine */) {
                 return true;
             }
             if (body.multiLine) {
@@ -60078,7 +60771,7 @@ var ts;
             emitModifiers(node, node.modifiers);
             write("class");
             emitNodeWithPrefix(" ", node.name, emitIdentifierName);
-            var indentedFlag = ts.getEmitFlags(node) & 524288 /* Indented */;
+            var indentedFlag = ts.getEmitFlags(node) & 32768 /* Indented */;
             if (indentedFlag) {
                 increaseIndent();
             }
@@ -60358,7 +61051,7 @@ var ts;
             // "comment1" is not considered to be leading comment for node.initializer
             // but rather a trailing comment on the previous node.
             var initializer = node.initializer;
-            if ((ts.getEmitFlags(initializer) & 16384 /* NoLeadingComments */) === 0) {
+            if ((ts.getEmitFlags(initializer) & 512 /* NoLeadingComments */) === 0) {
                 var commentRange = ts.getCommentRange(initializer);
                 emitTrailingCommentsOfPosition(commentRange.pos);
             }
@@ -60424,78 +61117,37 @@ var ts;
             }
             return statements.length;
         }
-        function emitHelpers(node) {
-            var emitFlags = ts.getEmitFlags(node);
+        function emitHelpers(node, isBundle) {
+            var sourceFile = ts.isSourceFile(node) ? node : currentSourceFile;
+            var shouldSkip = compilerOptions.noEmitHelpers || (sourceFile && ts.getExternalHelpersModuleName(sourceFile) !== undefined);
+            var shouldBundle = ts.isSourceFile(node) && !isOwnFileEmit;
             var helpersEmitted = false;
-            if (emitFlags & 1 /* EmitEmitHelpers */) {
-                helpersEmitted = emitEmitHelpers(currentSourceFile);
-            }
-            if (emitFlags & 2 /* EmitExportStar */) {
-                writeLines(exportStarHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 4 /* EmitSuperHelper */) {
-                writeLines(superHelper);
-                helpersEmitted = true;
-            }
-            if (emitFlags & 8 /* EmitAdvancedSuperHelper */) {
-                writeLines(advancedSuperHelper);
-                helpersEmitted = true;
-            }
-            return helpersEmitted;
-        }
-        function emitEmitHelpers(node) {
-            // Only emit helpers if the user did not say otherwise.
-            if (compilerOptions.noEmitHelpers) {
-                return false;
-            }
-            // Don't emit helpers if we can import them.
-            if (compilerOptions.importHelpers
-                && (ts.isExternalModule(node) || compilerOptions.isolatedModules)) {
-                return false;
-            }
-            var helpersEmitted = false;
-            // Only Emit __extends function when target ES5.
-            // For target ES6 and above, we can emit classDeclaration as is.
-            if ((languageVersion < 2 /* ES2015 */) && (!extendsEmitted && node.flags & 1024 /* HasClassExtends */)) {
-                writeLines(extendsHelper);
-                extendsEmitted = true;
-                helpersEmitted = true;
-            }
-            if ((languageVersion < 5 /* ESNext */ || currentSourceFile.scriptKind === 2 /* JSX */ || currentSourceFile.scriptKind === 4 /* TSX */) &&
-                compilerOptions.jsx !== 1 /* Preserve */ &&
-                !assignEmitted &&
-                node.flags & 16384 /* HasSpreadAttribute */) {
-                writeLines(assignHelper);
-                assignEmitted = true;
-            }
-            if (languageVersion < 5 /* ESNext */ && !restEmitted && node.flags & 32768 /* HasRestAttribute */) {
-                writeLines(restHelper);
-                restEmitted = true;
-            }
-            if (!decorateEmitted && node.flags & 2048 /* HasDecorators */) {
-                writeLines(decorateHelper);
-                if (compilerOptions.emitDecoratorMetadata) {
-                    writeLines(metadataHelper);
-                }
-                decorateEmitted = true;
-                helpersEmitted = true;
-            }
-            if (!paramEmitted && node.flags & 4096 /* HasParamDecorators */) {
-                writeLines(paramHelper);
-                paramEmitted = true;
-                helpersEmitted = true;
-            }
-            // Only emit __awaiter function when target ES5/ES6.
-            // Only emit __generator function when target ES5.
-            // For target ES2017 and above, we can emit async/await as is.
-            if ((languageVersion < 4 /* ES2017 */) && (!awaiterEmitted && node.flags & 8192 /* HasAsyncFunctions */)) {
-                writeLines(awaiterHelper);
-                if (languageVersion < 2 /* ES2015 */) {
-                    writeLines(generatorHelper);
+            var helpers = ts.getEmitHelpers(node);
+            if (helpers) {
+                for (var _a = 0, _b = ts.stableSort(helpers, ts.compareEmitHelpers); _a < _b.length; _a++) {
+                    var helper = _b[_a];
+                    if (!helper.scoped) {
+                        // Skip the helper if it can be skipped and the noEmitHelpers compiler
+                        // option is set, or if it can be imported and the importHelpers compiler
+                        // option is set.
+                        if (shouldSkip)
+                            continue;
+                        // Skip the helper if it can be bundled but hasn't already been emitted and we
+                        // are emitting a bundled module.
+                        if (shouldBundle) {
+                            if (bundledHelpers[helper.name]) {
+                                continue;
+                            }
+                            bundledHelpers[helper.name] = true;
+                        }
+                    }
+                    else if (isBundle) {
+                        // Skip the helper if it is scoped and we are emitting bundled helpers
+                        continue;
+                    }
+                    writeLines(helper.text);
+                    helpersEmitted = true;
                 }
-                awaiterEmitted = true;
-                helpersEmitted = true;
             }
             if (helpersEmitted) {
                 writeLine();
@@ -60503,9 +61155,10 @@ var ts;
             return helpersEmitted;
         }
         function writeLines(text) {
-            var lines = text.split(/\r\n|\r|\n/g);
+            var lines = text.split(/\r\n?|\n/g);
+            var indentation = guessIndentation(lines);
             for (var i = 0; i < lines.length; i++) {
-                var line = lines[i];
+                var line = indentation ? lines[i].slice(indentation) : lines[i];
                 if (line.length) {
                     if (i > 0) {
                         writeLine();
@@ -60514,6 +61167,21 @@ var ts;
                 }
             }
         }
+        function guessIndentation(lines) {
+            var indentation;
+            for (var _a = 0, lines_1 = lines; _a < lines_1.length; _a++) {
+                var line = lines_1[_a];
+                for (var i = 0; i < line.length && (indentation === undefined || i < indentation); i++) {
+                    if (!ts.isWhiteSpace(line.charCodeAt(i))) {
+                        if (indentation === undefined || i < indentation) {
+                            indentation = i;
+                            break;
+                        }
+                    }
+                }
+            }
+            return indentation;
+        }
         //
         // Helpers
         //
@@ -60881,10 +61549,10 @@ var ts;
         */
         function makeTempVariableName(flags) {
             if (flags && !(tempFlags & flags)) {
-                var name_38 = flags === 268435456 /* _i */ ? "_i" : "_n";
-                if (isUniqueName(name_38)) {
+                var name_39 = flags === 268435456 /* _i */ ? "_i" : "_n";
+                if (isUniqueName(name_39)) {
                     tempFlags |= flags;
-                    return name_38;
+                    return name_39;
                 }
             }
             while (true) {
@@ -60892,11 +61560,11 @@ var ts;
                 tempFlags++;
                 // Skip over 'i' and 'n'
                 if (count !== 8 && count !== 13) {
-                    var name_39 = count < 26
+                    var name_40 = count < 26
                         ? "_" + String.fromCharCode(97 /* a */ + count)
                         : "_" + (count - 26);
-                    if (isUniqueName(name_39)) {
-                        return name_39;
+                    if (isUniqueName(name_40)) {
+                        return name_40;
                     }
                 }
             }
@@ -61121,8 +61789,6 @@ var ts;
 /// <reference path="core.ts" />
 var ts;
 (function (ts) {
-    /** The version of the TypeScript compiler release */
-    ts.version = "2.2.0-dev.20161115";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -61349,10 +62015,10 @@ var ts;
         var resolutions = [];
         var cache = ts.createMap();
         for (var _i = 0, names_1 = names; _i < names_1.length; _i++) {
-            var name_40 = names_1[_i];
-            var result = name_40 in cache
-                ? cache[name_40]
-                : cache[name_40] = loader(name_40, containingFile);
+            var name_41 = names_1[_i];
+            var result = name_41 in cache
+                ? cache[name_41]
+                : cache[name_41] = loader(name_41, containingFile);
             resolutions.push(result);
         }
         return resolutions;
@@ -61422,7 +62088,8 @@ var ts;
             var typeReferences = ts.getAutomaticTypeDirectiveNames(options, host);
             if (typeReferences.length) {
                 // This containingFilename needs to match with the one used in managed-side
-                var containingFilename = ts.combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                var containingDirectory = options.configFilePath ? ts.getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                var containingFilename = ts.combinePaths(containingDirectory, "__inferred type names__.ts");
                 var resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (var i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);
@@ -62003,8 +62670,8 @@ var ts;
                             }
                             break;
                     }
-                    for (var _b = 0, nodes_4 = nodes; _b < nodes_4.length; _b++) {
-                        var node = nodes_4[_b];
+                    for (var _b = 0, nodes_6 = nodes; _b < nodes_6.length; _b++) {
+                        var node = nodes_6[_b];
                         walk(node);
                     }
                 }
@@ -63108,12 +63775,19 @@ var ts;
         }
     ];
     /* @internal */
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
+            /* @deprecated typingOptions.enableAutoDiscovery
+             * Use typeAcquisition.enable instead.
+             */
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -63139,6 +63813,20 @@ var ts;
     };
     var optionNameMapCache;
     /* @internal */
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        // Convert deprecated typingOptions.enableAutoDiscovery to typeAcquisition.enable
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
+    /* @internal */
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -63379,11 +64067,11 @@ var ts;
         function serializeCompilerOptions(options) {
             var result = ts.createMap();
             var optionsNameMap = getOptionNameMap().optionNameMap;
-            for (var name_41 in options) {
-                if (ts.hasProperty(options, name_41)) {
+            for (var name_42 in options) {
+                if (ts.hasProperty(options, name_42)) {
                     // tsconfig only options cannot be specified via command line,
                     // so we can assume that only types that can appear here string | number | boolean
-                    switch (name_41) {
+                    switch (name_42) {
                         case "init":
                         case "watch":
                         case "version":
@@ -63391,14 +64079,14 @@ var ts;
                         case "project":
                             break;
                         default:
-                            var value = options[name_41];
-                            var optionDefinition = optionsNameMap[name_41.toLowerCase()];
+                            var value = options[name_42];
+                            var optionDefinition = optionsNameMap[name_42.toLowerCase()];
                             if (optionDefinition) {
                                 var customTypeMap = getCustomTypeMapOfCommandLineOption(optionDefinition);
                                 if (!customTypeMap) {
                                     // There is no map associated with this compiler option then use the value as-is
                                     // This is the case if the value is expect to be string, number, boolean or list of string
-                                    result[name_41] = value;
+                                    result[name_42] = value;
                                 }
                                 else {
                                     if (optionDefinition.type === "list") {
@@ -63407,11 +64095,11 @@ var ts;
                                             var element = _a[_i];
                                             convertedValue.push(getNameOfCompilerOptionValue(element, customTypeMap));
                                         }
-                                        result[name_41] = convertedValue;
+                                        result[name_42] = convertedValue;
                                     }
                                     else {
                                         // There is a typeMap associated with this command-line option so use it to map value back to its name
-                                        result[name_41] = getNameOfCompilerOptionValue(value, customTypeMap);
+                                        result[name_42] = getNameOfCompilerOptionValue(value, customTypeMap);
                                     }
                                 }
                             }
@@ -63464,14 +64152,17 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        // typingOptions has been deprecated and is only supported for backward compatibility purposes.
+        // It should be removed in future releases - use typeAcquisition instead.
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -63498,7 +64189,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -63507,7 +64198,7 @@ var ts;
         function tryExtendsName(extendedConfig) {
             // If the path isn't a rooted or relative path, don't try to resolve it (we reserve the right to special case module-id like paths in the future)
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -63571,8 +64262,8 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                // By default, exclude common package folders and the outDir
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                // If no includes were specified, exclude common package folders and the outDir
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -63607,12 +64298,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -63620,9 +64311,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -64527,7 +65219,7 @@ var ts;
             case 243 /* ExportSpecifier */:
             case 237 /* NamespaceImport */:
                 return ts.ScriptElementKind.alias;
-            case 284 /* JSDocTypedefTag */:
+            case 285 /* JSDocTypedefTag */:
                 return ts.ScriptElementKind.typeElement;
             default:
                 return ts.ScriptElementKind.unknown;
@@ -64763,7 +65455,7 @@ var ts;
         // for the position of the relevant node (or comma).
         var syntaxList = ts.forEach(node.parent.getChildren(), function (c) {
             // find syntax list that covers the span of the node
-            if (c.kind === 291 /* SyntaxList */ && c.pos <= node.pos && c.end >= node.end) {
+            if (c.kind === 292 /* SyntaxList */ && c.pos <= node.pos && c.end >= node.end) {
                 return c;
             }
         });
@@ -65073,11 +65765,11 @@ var ts;
             }
         }
         if (node) {
-            if (node.jsDocComments) {
-                for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                    var jsDocComment = _a[_i];
-                    if (jsDocComment.tags) {
-                        for (var _b = 0, _c = jsDocComment.tags; _b < _c.length; _b++) {
+            if (node.jsDoc) {
+                for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                    var jsDoc = _a[_i];
+                    if (jsDoc.tags) {
+                        for (var _b = 0, _c = jsDoc.tags; _b < _c.length; _b++) {
                             var tag = _c[_b];
                             if (tag.pos <= position && position <= tag.end) {
                                 return tag;
@@ -65416,7 +66108,7 @@ var ts;
         if (isImportOrExportSpecifierName(location)) {
             return location.getText();
         }
-        else if (ts.isStringOrNumericLiteral(location.kind) &&
+        else if (ts.isStringOrNumericLiteral(location) &&
             location.parent.kind === 142 /* ComputedPropertyName */) {
             return location.text;
         }
@@ -66153,16 +66845,16 @@ var ts;
                     pushClassification(tag.tagName.pos, tag.tagName.end - tag.tagName.pos, 18 /* docCommentTagName */);
                     pos = tag.tagName.end;
                     switch (tag.kind) {
-                        case 280 /* JSDocParameterTag */:
+                        case 281 /* JSDocParameterTag */:
                             processJSDocParameterTag(tag);
                             break;
-                        case 283 /* JSDocTemplateTag */:
+                        case 284 /* JSDocTemplateTag */:
                             processJSDocTemplateTag(tag);
                             break;
-                        case 282 /* JSDocTypeTag */:
+                        case 283 /* JSDocTypeTag */:
                             processElement(tag.typeExpression);
                             break;
-                        case 281 /* JSDocReturnTag */:
+                        case 282 /* JSDocReturnTag */:
                             processElement(tag.typeExpression);
                             break;
                     }
@@ -66440,14 +67132,14 @@ var ts;
             function getJavaScriptCompletionEntries(sourceFile, position, uniqueNames) {
                 var entries = [];
                 var nameTable = ts.getNameTable(sourceFile);
-                for (var name_42 in nameTable) {
+                for (var name_43 in nameTable) {
                     // Skip identifiers produced only from the current location
-                    if (nameTable[name_42] === position) {
+                    if (nameTable[name_43] === position) {
                         continue;
                     }
-                    if (!uniqueNames[name_42]) {
-                        uniqueNames[name_42] = name_42;
-                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_42), compilerOptions.target, /*performCharacterChecks*/ true);
+                    if (!uniqueNames[name_43]) {
+                        uniqueNames[name_43] = name_43;
+                        var displayName = getCompletionEntryDisplayName(ts.unescapeIdentifier(name_43), compilerOptions.target, /*performCharacterChecks*/ true);
                         if (displayName) {
                             var entry = {
                                 name: displayName,
@@ -66960,11 +67652,11 @@ var ts;
                     if (currentConfigPath) {
                         paths.push(currentConfigPath);
                         currentDir = ts.getDirectoryPath(currentConfigPath);
-                        var parent_14 = ts.getDirectoryPath(currentDir);
-                        if (currentDir === parent_14) {
+                        var parent_13 = ts.getDirectoryPath(currentDir);
+                        if (currentDir === parent_13) {
                             break;
                         }
-                        currentDir = parent_14;
+                        currentDir = parent_13;
                     }
                     else {
                         break;
@@ -67045,14 +67737,14 @@ var ts;
             // Compute all the completion symbols again.
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_2 = completionData.location;
+                var symbols = completionData.symbols, location_3 = completionData.location;
                 // Find the symbol with the matching entry name.
                 // We don't need to perform character checks here because we're only comparing the
                 // name against 'entryName' (which is known to be good), not building a new
                 // completion entry.
-                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_2) === entryName ? s : undefined; });
+                var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_3) === entryName ? s : undefined; });
                 if (symbol) {
-                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_2, location_2, 7 /* All */), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
+                    var _a = ts.SymbolDisplay.getSymbolDisplayPartsDocumentationAndSymbolKind(typeChecker, symbol, sourceFile, location_3, location_3, 7 /* All */), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
                     return {
                         name: entryName,
                         kindModifiers: ts.SymbolDisplay.getSymbolModifiers(symbol),
@@ -67080,12 +67772,12 @@ var ts;
             // Compute all the completion symbols again.
             var completionData = getCompletionData(typeChecker, log, sourceFile, position);
             if (completionData) {
-                var symbols = completionData.symbols, location_3 = completionData.location;
+                var symbols = completionData.symbols, location_4 = completionData.location;
                 // Find the symbol with the matching entry name.
                 // We don't need to perform character checks here because we're only comparing the
                 // name against 'entryName' (which is known to be good), not building a new
                 // completion entry.
-                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_3) === entryName ? s : undefined; });
+                return ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(typeChecker, s, compilerOptions.target, /*performCharacterChecks*/ false, location_4) === entryName ? s : undefined; });
             }
             return undefined;
         }
@@ -67116,9 +67808,9 @@ var ts;
                         isJsDocTagName = true;
                     }
                     switch (tag.kind) {
-                        case 282 /* JSDocTypeTag */:
-                        case 280 /* JSDocParameterTag */:
-                        case 281 /* JSDocReturnTag */:
+                        case 283 /* JSDocTypeTag */:
+                        case 281 /* JSDocParameterTag */:
+                        case 282 /* JSDocReturnTag */:
                             var tagWithExpression = tag;
                             if (tagWithExpression.typeExpression) {
                                 insideJsDocTagExpression = tagWithExpression.typeExpression.pos < position && position < tagWithExpression.typeExpression.end;
@@ -67163,13 +67855,13 @@ var ts;
                     log("Returning an empty list because completion was requested in an invalid position.");
                     return undefined;
                 }
-                var parent_15 = contextToken.parent, kind = contextToken.kind;
+                var parent_14 = contextToken.parent, kind = contextToken.kind;
                 if (kind === 22 /* DotToken */) {
-                    if (parent_15.kind === 177 /* PropertyAccessExpression */) {
+                    if (parent_14.kind === 177 /* PropertyAccessExpression */) {
                         node = contextToken.parent.expression;
                         isRightOfDot = true;
                     }
-                    else if (parent_15.kind === 141 /* QualifiedName */) {
+                    else if (parent_14.kind === 141 /* QualifiedName */) {
                         node = contextToken.parent.left;
                         isRightOfDot = true;
                     }
@@ -67556,9 +68248,9 @@ var ts;
                     switch (contextToken.kind) {
                         case 16 /* OpenBraceToken */: // const x = { |
                         case 25 /* CommaToken */:
-                            var parent_16 = contextToken.parent;
-                            if (parent_16 && (parent_16.kind === 176 /* ObjectLiteralExpression */ || parent_16.kind === 172 /* ObjectBindingPattern */)) {
-                                return parent_16;
+                            var parent_15 = contextToken.parent;
+                            if (parent_15 && (parent_15.kind === 176 /* ObjectLiteralExpression */ || parent_15.kind === 172 /* ObjectBindingPattern */)) {
+                                return parent_15;
                             }
                             break;
                     }
@@ -67585,37 +68277,37 @@ var ts;
             }
             function tryGetContainingJsxElement(contextToken) {
                 if (contextToken) {
-                    var parent_17 = contextToken.parent;
+                    var parent_16 = contextToken.parent;
                     switch (contextToken.kind) {
                         case 27 /* LessThanSlashToken */:
                         case 40 /* SlashToken */:
                         case 70 /* Identifier */:
                         case 250 /* JsxAttribute */:
                         case 251 /* JsxSpreadAttribute */:
-                            if (parent_17 && (parent_17.kind === 247 /* JsxSelfClosingElement */ || parent_17.kind === 248 /* JsxOpeningElement */)) {
-                                return parent_17;
+                            if (parent_16 && (parent_16.kind === 247 /* JsxSelfClosingElement */ || parent_16.kind === 248 /* JsxOpeningElement */)) {
+                                return parent_16;
                             }
-                            else if (parent_17.kind === 250 /* JsxAttribute */) {
-                                return parent_17.parent;
+                            else if (parent_16.kind === 250 /* JsxAttribute */) {
+                                return parent_16.parent;
                             }
                             break;
                         // The context token is the closing } or " of an attribute, which means
                         // its parent is a JsxExpression, whose parent is a JsxAttribute,
                         // whose parent is a JsxOpeningLikeElement
                         case 9 /* StringLiteral */:
-                            if (parent_17 && ((parent_17.kind === 250 /* JsxAttribute */) || (parent_17.kind === 251 /* JsxSpreadAttribute */))) {
-                                return parent_17.parent;
+                            if (parent_16 && ((parent_16.kind === 250 /* JsxAttribute */) || (parent_16.kind === 251 /* JsxSpreadAttribute */))) {
+                                return parent_16.parent;
                             }
                             break;
                         case 17 /* CloseBraceToken */:
-                            if (parent_17 &&
-                                parent_17.kind === 252 /* JsxExpression */ &&
-                                parent_17.parent &&
-                                (parent_17.parent.kind === 250 /* JsxAttribute */)) {
-                                return parent_17.parent.parent;
+                            if (parent_16 &&
+                                parent_16.kind === 252 /* JsxExpression */ &&
+                                parent_16.parent &&
+                                (parent_16.parent.kind === 250 /* JsxAttribute */)) {
+                                return parent_16.parent.parent;
                             }
-                            if (parent_17 && parent_17.kind === 251 /* JsxSpreadAttribute */) {
-                                return parent_17.parent;
+                            if (parent_16 && parent_16.kind === 251 /* JsxSpreadAttribute */) {
+                                return parent_16.parent;
                             }
                             break;
                     }
@@ -67752,8 +68444,8 @@ var ts;
                     if (element.getStart() <= position && position <= element.getEnd()) {
                         continue;
                     }
-                    var name_43 = element.propertyName || element.name;
-                    existingImportsOrExports[name_43.text] = true;
+                    var name_44 = element.propertyName || element.name;
+                    existingImportsOrExports[name_44.text] = true;
                 }
                 if (!ts.someProperties(existingImportsOrExports)) {
                     return ts.filter(exportsOfModule, function (e) { return e.name !== "default"; });
@@ -68112,19 +68804,19 @@ var ts;
                 function getThrowStatementOwner(throwStatement) {
                     var child = throwStatement;
                     while (child.parent) {
-                        var parent_18 = child.parent;
-                        if (ts.isFunctionBlock(parent_18) || parent_18.kind === 261 /* SourceFile */) {
-                            return parent_18;
+                        var parent_17 = child.parent;
+                        if (ts.isFunctionBlock(parent_17) || parent_17.kind === 261 /* SourceFile */) {
+                            return parent_17;
                         }
                         // A throw-statement is only owned by a try-statement if the try-statement has
                         // a catch clause, and if the throw-statement occurs within the try block.
-                        if (parent_18.kind === 221 /* TryStatement */) {
-                            var tryStatement = parent_18;
+                        if (parent_17.kind === 221 /* TryStatement */) {
+                            var tryStatement = parent_17;
                             if (tryStatement.tryBlock === child && tryStatement.catchClause) {
                                 return child;
                             }
                         }
-                        child = parent_18;
+                        child = parent_17;
                     }
                     return undefined;
                 }
@@ -69081,24 +69773,24 @@ var ts;
                     // If we got a type reference, try and see if the reference applies to any expressions that can implement an interface
                     var containingTypeReference = getContainingTypeReference(refNode);
                     if (containingTypeReference) {
-                        var parent_19 = containingTypeReference.parent;
-                        if (ts.isVariableLike(parent_19) && parent_19.type === containingTypeReference && parent_19.initializer && isImplementationExpression(parent_19.initializer)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.initializer));
+                        var parent_18 = containingTypeReference.parent;
+                        if (ts.isVariableLike(parent_18) && parent_18.type === containingTypeReference && parent_18.initializer && isImplementationExpression(parent_18.initializer)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.initializer));
                         }
-                        else if (ts.isFunctionLike(parent_19) && parent_19.type === containingTypeReference && parent_19.body) {
-                            if (parent_19.body.kind === 204 /* Block */) {
-                                ts.forEachReturnStatement(parent_19.body, function (returnStatement) {
+                        else if (ts.isFunctionLike(parent_18) && parent_18.type === containingTypeReference && parent_18.body) {
+                            if (parent_18.body.kind === 204 /* Block */) {
+                                ts.forEachReturnStatement(parent_18.body, function (returnStatement) {
                                     if (returnStatement.expression && isImplementationExpression(returnStatement.expression)) {
                                         maybeAdd(getReferenceEntryFromNode(returnStatement.expression));
                                     }
                                 });
                             }
-                            else if (isImplementationExpression(parent_19.body)) {
-                                maybeAdd(getReferenceEntryFromNode(parent_19.body));
+                            else if (isImplementationExpression(parent_18.body)) {
+                                maybeAdd(getReferenceEntryFromNode(parent_18.body));
                             }
                         }
-                        else if (ts.isAssertionExpression(parent_19) && isImplementationExpression(parent_19.expression)) {
-                            maybeAdd(getReferenceEntryFromNode(parent_19.expression));
+                        else if (ts.isAssertionExpression(parent_18) && isImplementationExpression(parent_18.expression)) {
+                            maybeAdd(getReferenceEntryFromNode(parent_18.expression));
                         }
                     }
                 }
@@ -69593,9 +70285,9 @@ var ts;
                                 return undefined;
                             }
                         }
-                        var result_3 = [];
-                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_3, /*previousIterationSymbolsCache*/ ts.createMap());
-                        return ts.forEach(result_3, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+                        var result_4 = [];
+                        getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_4, /*previousIterationSymbolsCache*/ ts.createMap());
+                        return ts.forEach(result_4, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
                     }
                     return undefined;
                 });
@@ -69604,7 +70296,7 @@ var ts;
                 if (node.name.kind === 142 /* ComputedPropertyName */) {
                     var nameExpression = node.name.expression;
                     // treat computed property names where expression is string/numeric literal as just string/numeric literal
-                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
+                    if (ts.isStringOrNumericLiteral(nameExpression)) {
                         return nameExpression.text;
                     }
                     return undefined;
@@ -69616,20 +70308,20 @@ var ts;
                 var contextualType = typeChecker.getContextualType(objectLiteral);
                 var name = getNameFromObjectLiteralElement(node);
                 if (name && contextualType) {
-                    var result_4 = [];
+                    var result_5 = [];
                     var symbol_2 = contextualType.getProperty(name);
                     if (symbol_2) {
-                        result_4.push(symbol_2);
+                        result_5.push(symbol_2);
                     }
                     if (contextualType.flags & 65536 /* Union */) {
                         ts.forEach(contextualType.types, function (t) {
                             var symbol = t.getProperty(name);
                             if (symbol) {
-                                result_4.push(symbol);
+                                result_5.push(symbol);
                             }
                         });
                     }
-                    return result_4;
+                    return result_5;
                 }
                 return undefined;
             }
@@ -69896,13 +70588,13 @@ var ts;
                 return undefined;
             }
             if (type.flags & 65536 /* Union */ && !(type.flags & 16 /* Enum */)) {
-                var result_5 = [];
+                var result_6 = [];
                 ts.forEach(type.types, function (t) {
                     if (t.symbol) {
-                        ts.addRange(/*to*/ result_5, /*from*/ getDefinitionFromSymbol(typeChecker, t.symbol, node));
+                        ts.addRange(/*to*/ result_6, /*from*/ getDefinitionFromSymbol(typeChecker, t.symbol, node));
                     }
                 });
-                return result_5;
+                return result_6;
             }
             if (!type.symbol) {
                 return undefined;
@@ -70113,7 +70805,7 @@ var ts;
             // from Array<T> - Array<string> and Array<number>
             var documentationComment = [];
             forEachUnique(declarations, function (declaration) {
-                var comments = ts.getJSDocComments(declaration, /*checkParentVariableStatement*/ true);
+                var comments = ts.getCommentsFromJSDoc(declaration);
                 if (!comments) {
                     return;
                 }
@@ -70320,13 +71012,13 @@ var ts;
          * @param projectRootPath is the path to the project root directory
          * @param safeListPath is the path used to retrieve the safe list
          * @param packageNameToTypingLocation is the map of package names to their cached typing locations
-         * @param typingOptions are used to customize the typing inference process
+         * @param typeAcquisition is used to customize the typing acquisition process
          * @param compilerOptions are used as a source for typing inference
          */
-        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typingOptions, unresolvedImports) {
+        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typeAcquisition, unresolvedImports) {
             // A typing name to typing file path mapping
             var inferredTypings = ts.createMap();
-            if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+            if (!typeAcquisition || !typeAcquisition.enable) {
                 return { cachedTypingPaths: [], newTypingNames: [], filesToWatch: [] };
             }
             // Only infer typings for .js and .jsx files
@@ -70342,8 +71034,8 @@ var ts;
             // Directories to search for package.json, bower.json and other typing information
             var searchDirs = [];
             var exclude = [];
-            mergeTypings(typingOptions.include);
-            exclude = typingOptions.exclude || [];
+            mergeTypings(typeAcquisition.include);
+            exclude = typeAcquisition.exclude || [];
             var possibleSearchDirs = ts.map(fileNames, ts.getDirectoryPath);
             if (projectRootPath) {
                 possibleSearchDirs.push(projectRootPath);
@@ -70370,9 +71062,9 @@ var ts;
                 }
             }
             // Add the cached typing locations for inferred typings that are already installed
-            for (var name_44 in packageNameToTypingLocation) {
-                if (name_44 in inferredTypings && !inferredTypings[name_44]) {
-                    inferredTypings[name_44] = packageNameToTypingLocation[name_44];
+            for (var name_45 in packageNameToTypingLocation) {
+                if (name_45 in inferredTypings && !inferredTypings[name_45]) {
+                    inferredTypings[name_45] = packageNameToTypingLocation[name_45];
                 }
             }
             // Remove typings that the user has added to the exclude list
@@ -70510,12 +71202,12 @@ var ts;
                     return;
                 }
                 var nameToDeclarations = sourceFile.getNamedDeclarations();
-                for (var name_45 in nameToDeclarations) {
-                    var declarations = nameToDeclarations[name_45];
+                for (var name_46 in nameToDeclarations) {
+                    var declarations = nameToDeclarations[name_46];
                     if (declarations) {
                         // First do a quick check to see if the name of the declaration matches the
                         // last portion of the (possibly) dotted name they're searching for.
-                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_45);
+                        var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_46);
                         if (!matches) {
                             continue;
                         }
@@ -70528,14 +71220,14 @@ var ts;
                                 if (!containers) {
                                     return undefined;
                                 }
-                                matches = patternMatcher.getMatches(containers, name_45);
+                                matches = patternMatcher.getMatches(containers, name_46);
                                 if (!matches) {
                                     continue;
                                 }
                             }
                             var fileName = sourceFile.fileName;
                             var matchKind = bestMatchKind(matches);
-                            rawItems.push({ name: name_45, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
+                            rawItems.push({ name: name_46, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
                         }
                     }
                 }
@@ -70824,9 +71516,9 @@ var ts;
                 case 174 /* BindingElement */:
                 case 223 /* VariableDeclaration */:
                     var decl = node;
-                    var name_46 = decl.name;
-                    if (ts.isBindingPattern(name_46)) {
-                        addChildrenRecursively(name_46);
+                    var name_47 = decl.name;
+                    if (ts.isBindingPattern(name_47)) {
+                        addChildrenRecursively(name_47);
                     }
                     else if (decl.initializer && isFunctionOrClassExpression(decl.initializer)) {
                         // For `const x = function() {}`, just use the function node, not the const.
@@ -70873,9 +71565,9 @@ var ts;
                     addLeafNode(node);
                     break;
                 default:
-                    ts.forEach(node.jsDocComments, function (jsDocComment) {
-                        ts.forEach(jsDocComment.tags, function (tag) {
-                            if (tag.kind === 284 /* JSDocTypedefTag */) {
+                    ts.forEach(node.jsDoc, function (jsDoc) {
+                        ts.forEach(jsDoc.tags, function (tag) {
+                            if (tag.kind === 285 /* JSDocTypedefTag */) {
                                 addLeafNode(tag);
                             }
                         });
@@ -71005,7 +71697,7 @@ var ts;
                 case 185 /* ArrowFunction */:
                 case 197 /* ClassExpression */:
                     return getFunctionOrClassName(node);
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     return getJSDocTypedefTagName(node);
                 default:
                     return undefined;
@@ -71048,7 +71740,7 @@ var ts;
                     return "()";
                 case 155 /* IndexSignature */:
                     return "[]";
-                case 284 /* JSDocTypedefTag */:
+                case 285 /* JSDocTypedefTag */:
                     return getJSDocTypedefTagName(node);
                 default:
                     return "<unknown>";
@@ -71096,7 +71788,7 @@ var ts;
                     case 230 /* ModuleDeclaration */:
                     case 261 /* SourceFile */:
                     case 228 /* TypeAliasDeclaration */:
-                    case 284 /* JSDocTypedefTag */:
+                    case 285 /* JSDocTypedefTag */:
                         return true;
                     case 150 /* Constructor */:
                     case 149 /* MethodDeclaration */:
@@ -71333,28 +72025,28 @@ var ts;
                 switch (n.kind) {
                     case 204 /* Block */:
                         if (!ts.isFunctionBlock(n)) {
-                            var parent_20 = n.parent;
+                            var parent_19 = n.parent;
                             var openBrace = ts.findChildOfKind(n, 16 /* OpenBraceToken */, sourceFile);
                             var closeBrace = ts.findChildOfKind(n, 17 /* CloseBraceToken */, sourceFile);
                             // Check if the block is standalone, or 'attached' to some parent statement.
                             // If the latter, we want to collapse the block, but consider its hint span
                             // to be the entire span of the parent.
-                            if (parent_20.kind === 209 /* DoStatement */ ||
-                                parent_20.kind === 212 /* ForInStatement */ ||
-                                parent_20.kind === 213 /* ForOfStatement */ ||
-                                parent_20.kind === 211 /* ForStatement */ ||
-                                parent_20.kind === 208 /* IfStatement */ ||
-                                parent_20.kind === 210 /* WhileStatement */ ||
-                                parent_20.kind === 217 /* WithStatement */ ||
-                                parent_20.kind === 256 /* CatchClause */) {
-                                addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                            if (parent_19.kind === 209 /* DoStatement */ ||
+                                parent_19.kind === 212 /* ForInStatement */ ||
+                                parent_19.kind === 213 /* ForOfStatement */ ||
+                                parent_19.kind === 211 /* ForStatement */ ||
+                                parent_19.kind === 208 /* IfStatement */ ||
+                                parent_19.kind === 210 /* WhileStatement */ ||
+                                parent_19.kind === 217 /* WithStatement */ ||
+                                parent_19.kind === 256 /* CatchClause */) {
+                                addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                 break;
                             }
-                            if (parent_20.kind === 221 /* TryStatement */) {
+                            if (parent_19.kind === 221 /* TryStatement */) {
                                 // Could be the try-block, or the finally-block.
-                                var tryStatement = parent_20;
+                                var tryStatement = parent_19;
                                 if (tryStatement.tryBlock === n) {
-                                    addOutliningSpan(parent_20, openBrace, closeBrace, autoCollapse(n));
+                                    addOutliningSpan(parent_19, openBrace, closeBrace, autoCollapse(n));
                                     break;
                                 }
                                 else if (tryStatement.finallyBlock === n) {
@@ -73447,9 +74139,9 @@ var ts;
                     return false;
                 }
                 // If the parent is not sourceFile or module block it is local variable
-                for (var parent_21 = declaration.parent; !ts.isFunctionBlock(parent_21); parent_21 = parent_21.parent) {
+                for (var parent_20 = declaration.parent; !ts.isFunctionBlock(parent_20); parent_20 = parent_20.parent) {
                     // Reached source file or module block
-                    if (parent_21.kind === 261 /* SourceFile */ || parent_21.kind === 231 /* ModuleBlock */) {
+                    if (parent_20.kind === 261 /* SourceFile */ || parent_20.kind === 231 /* ModuleBlock */) {
                         return false;
                     }
                 }
@@ -74054,7 +74746,7 @@ var ts;
             function RuleOperationContext() {
                 var funcs = [];
                 for (var _i = 0; _i < arguments.length; _i++) {
-                    funcs[_i - 0] = arguments[_i];
+                    funcs[_i] = arguments[_i];
                 }
                 this.customContextChecks = funcs;
             }
@@ -74325,9 +75017,9 @@ var ts;
             }
             Rules.prototype.getRuleName = function (rule) {
                 var o = this;
-                for (var name_47 in o) {
-                    if (o[name_47] === rule) {
-                        return name_47;
+                for (var name_48 in o) {
+                    if (o[name_48] === rule) {
+                        return name_48;
                     }
                 }
                 throw new Error("Unknown rule");
@@ -75715,11 +76407,23 @@ var ts;
                 else {
                     var tokenStart = sourceFile.getLineAndCharacterOfPosition(pos);
                     var startLinePosition = ts.getStartPositionOfLine(tokenStart.line, sourceFile);
-                    if (indentation !== tokenStart.character || indentationIsDifferent(indentationString, startLinePosition)) {
+                    if (indentation !== characterToColumn(startLinePosition, tokenStart.character) || indentationIsDifferent(indentationString, startLinePosition)) {
                         recordReplace(startLinePosition, tokenStart.character, indentationString);
                     }
                 }
             }
+            function characterToColumn(startLinePosition, characterInLine) {
+                var column = 0;
+                for (var i = 0; i < characterInLine; i++) {
+                    if (sourceFile.text.charCodeAt(startLinePosition + i) === 9 /* tab */) {
+                        column += options.tabSize - column % options.tabSize;
+                    }
+                    else {
+                        column++;
+                    }
+                }
+                return column;
+            }
             function indentationIsDifferent(indentationString, startLinePosition) {
                 return indentationString !== sourceFile.text.substr(startLinePosition, indentationString.length);
             }
@@ -76508,7 +77212,666 @@ var ts;
         });
     })(codefix = ts.codefix || (ts.codefix = {}));
 })(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        var ModuleSpecifierComparison;
+        (function (ModuleSpecifierComparison) {
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Better"] = 0] = "Better";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Equal"] = 1] = "Equal";
+            ModuleSpecifierComparison[ModuleSpecifierComparison["Worse"] = 2] = "Worse";
+        })(ModuleSpecifierComparison || (ModuleSpecifierComparison = {}));
+        var ImportCodeActionMap = (function () {
+            function ImportCodeActionMap() {
+                this.symbolIdToActionMap = ts.createMap();
+            }
+            ImportCodeActionMap.prototype.addAction = function (symbolId, newAction) {
+                if (!newAction) {
+                    return;
+                }
+                if (!this.symbolIdToActionMap[symbolId]) {
+                    this.symbolIdToActionMap[symbolId] = [newAction];
+                    return;
+                }
+                if (newAction.kind === "CodeChange") {
+                    this.symbolIdToActionMap[symbolId].push(newAction);
+                    return;
+                }
+                var updatedNewImports = [];
+                for (var _i = 0, _a = this.symbolIdToActionMap[symbolId]; _i < _a.length; _i++) {
+                    var existingAction = _a[_i];
+                    if (existingAction.kind === "CodeChange") {
+                        // only import actions should compare
+                        updatedNewImports.push(existingAction);
+                        continue;
+                    }
+                    switch (this.compareModuleSpecifiers(existingAction.moduleSpecifier, newAction.moduleSpecifier)) {
+                        case ModuleSpecifierComparison.Better:
+                            // the new one is not worth considering if it is a new improt.
+                            // However if it is instead a insertion into existing import, the user might want to use
+                            // the module specifier even it is worse by our standards. So keep it.
+                            if (newAction.kind === "NewImport") {
+                                return;
+                            }
+                        case ModuleSpecifierComparison.Equal:
+                            // the current one is safe. But it is still possible that the new one is worse
+                            // than another existing one. For example, you may have new imports from "./foo/bar"
+                            // and "bar", when the new one is "bar/bar2" and the current one is "./foo/bar". The new
+                            // one and the current one are not comparable (one relative path and one absolute path),
+                            // but the new one is worse than the other one, so should not add to the list.
+                            updatedNewImports.push(existingAction);
+                            break;
+                        case ModuleSpecifierComparison.Worse:
+                            // the existing one is worse, remove from the list.
+                            continue;
+                    }
+                }
+                // if we reach here, it means the new one is better or equal to all of the existing ones.
+                updatedNewImports.push(newAction);
+                this.symbolIdToActionMap[symbolId] = updatedNewImports;
+            };
+            ImportCodeActionMap.prototype.addActions = function (symbolId, newActions) {
+                for (var _i = 0, newActions_1 = newActions; _i < newActions_1.length; _i++) {
+                    var newAction = newActions_1[_i];
+                    this.addAction(symbolId, newAction);
+                }
+            };
+            ImportCodeActionMap.prototype.getAllActions = function () {
+                var result = [];
+                for (var symbolId in this.symbolIdToActionMap) {
+                    result = ts.concatenate(result, this.symbolIdToActionMap[symbolId]);
+                }
+                return result;
+            };
+            ImportCodeActionMap.prototype.compareModuleSpecifiers = function (moduleSpecifier1, moduleSpecifier2) {
+                if (moduleSpecifier1 === moduleSpecifier2) {
+                    return ModuleSpecifierComparison.Equal;
+                }
+                // if moduleSpecifier1 (ms1) is a substring of ms2, then it is better
+                if (moduleSpecifier2.indexOf(moduleSpecifier1) === 0) {
+                    return ModuleSpecifierComparison.Better;
+                }
+                if (moduleSpecifier1.indexOf(moduleSpecifier2) === 0) {
+                    return ModuleSpecifierComparison.Worse;
+                }
+                // if both are relative paths, and ms1 has fewer levels, then it is better
+                if (ts.isExternalModuleNameRelative(moduleSpecifier1) && ts.isExternalModuleNameRelative(moduleSpecifier2)) {
+                    var regex = new RegExp(ts.directorySeparator, "g");
+                    var moduleSpecifier1LevelCount = (moduleSpecifier1.match(regex) || []).length;
+                    var moduleSpecifier2LevelCount = (moduleSpecifier2.match(regex) || []).length;
+                    return moduleSpecifier1LevelCount < moduleSpecifier2LevelCount
+                        ? ModuleSpecifierComparison.Better
+                        : moduleSpecifier1LevelCount === moduleSpecifier2LevelCount
+                            ? ModuleSpecifierComparison.Equal
+                            : ModuleSpecifierComparison.Worse;
+                }
+                // the equal cases include when the two specifiers are not comparable.
+                return ModuleSpecifierComparison.Equal;
+            };
+            return ImportCodeActionMap;
+        }());
+        codefix.registerCodeFix({
+            errorCodes: [ts.Diagnostics.Cannot_find_name_0.code],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var checker = context.program.getTypeChecker();
+                var allSourceFiles = context.program.getSourceFiles();
+                var useCaseSensitiveFileNames = context.host.useCaseSensitiveFileNames ? context.host.useCaseSensitiveFileNames() : false;
+                var token = ts.getTokenAtPosition(sourceFile, context.span.start);
+                var name = token.getText();
+                var symbolIdActionMap = new ImportCodeActionMap();
+                // this is a module id -> module import declaration map
+                var cachedImportDeclarations = ts.createMap();
+                var cachedNewImportInsertPosition;
+                var allPotentialModules = checker.getAmbientModules();
+                for (var _i = 0, allSourceFiles_1 = allSourceFiles; _i < allSourceFiles_1.length; _i++) {
+                    var otherSourceFile = allSourceFiles_1[_i];
+                    if (otherSourceFile !== sourceFile && ts.isExternalOrCommonJsModule(otherSourceFile)) {
+                        allPotentialModules.push(otherSourceFile.symbol);
+                    }
+                }
+                var currentTokenMeaning = ts.getMeaningFromLocation(token);
+                for (var _a = 0, allPotentialModules_1 = allPotentialModules; _a < allPotentialModules_1.length; _a++) {
+                    var moduleSymbol = allPotentialModules_1[_a];
+                    context.cancellationToken.throwIfCancellationRequested();
+                    // check the default export
+                    var defaultExport = checker.tryGetMemberInModuleExports("default", moduleSymbol);
+                    if (defaultExport) {
+                        var localSymbol = ts.getLocalSymbolForExportDefault(defaultExport);
+                        if (localSymbol && localSymbol.name === name && checkSymbolHasMeaning(localSymbol, currentTokenMeaning)) {
+                            // check if this symbol is already used
+                            var symbolId = getUniqueSymbolId(localSymbol);
+                            symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol, /*isDefault*/ true));
+                        }
+                    }
+                    // check exports with the same name
+                    var exportSymbolWithIdenticalName = checker.tryGetMemberInModuleExports(name, moduleSymbol);
+                    if (exportSymbolWithIdenticalName && checkSymbolHasMeaning(exportSymbolWithIdenticalName, currentTokenMeaning)) {
+                        var symbolId = getUniqueSymbolId(exportSymbolWithIdenticalName);
+                        symbolIdActionMap.addActions(symbolId, getCodeActionForImport(moduleSymbol));
+                    }
+                }
+                return symbolIdActionMap.getAllActions();
+                function getImportDeclarations(moduleSymbol) {
+                    var moduleSymbolId = getUniqueSymbolId(moduleSymbol);
+                    if (cachedImportDeclarations[moduleSymbolId]) {
+                        return cachedImportDeclarations[moduleSymbolId];
+                    }
+                    var existingDeclarations = [];
+                    for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                        var importModuleSpecifier = _a[_i];
+                        var importSymbol = checker.getSymbolAtLocation(importModuleSpecifier);
+                        if (importSymbol === moduleSymbol) {
+                            existingDeclarations.push(getImportDeclaration(importModuleSpecifier));
+                        }
+                    }
+                    cachedImportDeclarations[moduleSymbolId] = existingDeclarations;
+                    return existingDeclarations;
+                    function getImportDeclaration(moduleSpecifier) {
+                        var node = moduleSpecifier;
+                        while (node) {
+                            if (node.kind === 235 /* ImportDeclaration */) {
+                                return node;
+                            }
+                            if (node.kind === 234 /* ImportEqualsDeclaration */) {
+                                return node;
+                            }
+                            node = node.parent;
+                        }
+                        return undefined;
+                    }
+                }
+                function getUniqueSymbolId(symbol) {
+                    if (symbol.flags & 8388608 /* Alias */) {
+                        return ts.getSymbolId(checker.getAliasedSymbol(symbol));
+                    }
+                    return ts.getSymbolId(symbol);
+                }
+                function checkSymbolHasMeaning(symbol, meaning) {
+                    var declarations = symbol.getDeclarations();
+                    return declarations ? ts.some(symbol.declarations, function (decl) { return !!(ts.getMeaningFromDeclaration(decl) & meaning); }) : false;
+                }
+                function getCodeActionForImport(moduleSymbol, isDefault) {
+                    var existingDeclarations = getImportDeclarations(moduleSymbol);
+                    if (existingDeclarations.length > 0) {
+                        // With an existing import statement, there are more than one actions the user can do.
+                        return getCodeActionsForExistingImport(existingDeclarations);
+                    }
+                    else {
+                        return [getCodeActionForNewImport()];
+                    }
+                    function getCodeActionsForExistingImport(declarations) {
+                        var actions = [];
+                        // It is possible that multiple import statements with the same specifier exist in the file.
+                        // e.g.
+                        //
+                        //     import * as ns from "foo";
+                        //     import { member1, member2 } from "foo";
+                        //
+                        //     member3/**/ <-- cusor here
+                        //
+                        // in this case we should provie 2 actions:
+                        //     1. change "member3" to "ns.member3"
+                        //     2. add "member3" to the second import statement's import list
+                        // and it is up to the user to decide which one fits best.
+                        var namespaceImportDeclaration;
+                        var namedImportDeclaration;
+                        var existingModuleSpecifier;
+                        for (var _i = 0, declarations_11 = declarations; _i < declarations_11.length; _i++) {
+                            var declaration = declarations_11[_i];
+                            if (declaration.kind === 235 /* ImportDeclaration */) {
+                                var namedBindings = declaration.importClause && declaration.importClause.namedBindings;
+                                if (namedBindings && namedBindings.kind === 237 /* NamespaceImport */) {
+                                    // case:
+                                    // import * as ns from "foo"
+                                    namespaceImportDeclaration = declaration;
+                                }
+                                else {
+                                    // cases:
+                                    // import default from "foo"
+                                    // import { bar } from "foo" or combination with the first one
+                                    // import "foo"
+                                    namedImportDeclaration = declaration;
+                                }
+                                existingModuleSpecifier = declaration.moduleSpecifier.getText();
+                            }
+                            else {
+                                // case:
+                                // import foo = require("foo")
+                                namespaceImportDeclaration = declaration;
+                                existingModuleSpecifier = getModuleSpecifierFromImportEqualsDeclaration(declaration);
+                            }
+                        }
+                        if (namespaceImportDeclaration) {
+                            actions.push(getCodeActionForNamespaceImport(namespaceImportDeclaration));
+                        }
+                        if (namedImportDeclaration && namedImportDeclaration.importClause &&
+                            (namedImportDeclaration.importClause.name || namedImportDeclaration.importClause.namedBindings)) {
+                            /**
+                             * If the existing import declaration already has a named import list, just
+                             * insert the identifier into that list.
+                             */
+                            var textChange = getTextChangeForImportClause(namedImportDeclaration.importClause);
+                            var moduleSpecifierWithoutQuotes = ts.stripQuotes(namedImportDeclaration.moduleSpecifier.getText());
+                            actions.push(createCodeAction(ts.Diagnostics.Add_0_to_existing_import_declaration_from_1, [name, moduleSpecifierWithoutQuotes], textChange.newText, textChange.span, sourceFile.fileName, "InsertingIntoExistingImport", moduleSpecifierWithoutQuotes));
+                        }
+                        else {
+                            // we need to create a new import statement, but the existing module specifier can be reused.
+                            actions.push(getCodeActionForNewImport(existingModuleSpecifier));
+                        }
+                        return actions;
+                        function getModuleSpecifierFromImportEqualsDeclaration(declaration) {
+                            if (declaration.moduleReference && declaration.moduleReference.kind === 245 /* ExternalModuleReference */) {
+                                return declaration.moduleReference.expression.getText();
+                            }
+                            return declaration.moduleReference.getText();
+                        }
+                        function getTextChangeForImportClause(importClause) {
+                            var newImportText = isDefault ? "default as " + name : name;
+                            var importList = importClause.namedBindings;
+                            // case 1:
+                            // original text: import default from "module"
+                            // change to: import default, { name } from "module"
+                            if (!importList && importClause.name) {
+                                var start = importClause.name.getEnd();
+                                return {
+                                    newText: ", { " + newImportText + " }",
+                                    span: { start: start, length: 0 }
+                                };
+                            }
+                            // case 2:
+                            // original text: import {} from "module"
+                            // change to: import { name } from "module"
+                            if (importList.elements.length === 0) {
+                                var start = importList.getStart();
+                                return {
+                                    newText: "{ " + newImportText + " }",
+                                    span: { start: start, length: importList.getEnd() - start }
+                                };
+                            }
+                            // case 3:
+                            // original text: import { foo, bar } from "module"
+                            // change to: import { foo, bar, name } from "module"
+                            var insertPoint = importList.elements[importList.elements.length - 1].getEnd();
+                            /**
+                             * If the import list has one import per line, preserve that. Otherwise, insert on same line as last element
+                             *     import {
+                             *         foo
+                             *     } from "./module";
+                             */
+                            var startLine = ts.getLineOfLocalPosition(sourceFile, importList.getStart());
+                            var endLine = ts.getLineOfLocalPosition(sourceFile, importList.getEnd());
+                            var oneImportPerLine = endLine - startLine > importList.elements.length;
+                            return {
+                                newText: "," + (oneImportPerLine ? context.newLineCharacter : " ") + newImportText,
+                                span: { start: insertPoint, length: 0 }
+                            };
+                        }
+                        function getCodeActionForNamespaceImport(declaration) {
+                            var namespacePrefix;
+                            if (declaration.kind === 235 /* ImportDeclaration */) {
+                                namespacePrefix = declaration.importClause.namedBindings.name.getText();
+                            }
+                            else {
+                                namespacePrefix = declaration.name.getText();
+                            }
+                            namespacePrefix = ts.stripQuotes(namespacePrefix);
+                            /**
+                             * Cases:
+                             *     import * as ns from "mod"
+                             *     import default, * as ns from "mod"
+                             *     import ns = require("mod")
+                             *
+                             * Because there is no import list, we alter the reference to include the
+                             * namespace instead of altering the import declaration. For example, "foo" would
+                             * become "ns.foo"
+                             */
+                            return createCodeAction(ts.Diagnostics.Change_0_to_1, [name, namespacePrefix + "." + name], namespacePrefix + ".", { start: token.getStart(), length: 0 }, sourceFile.fileName, "CodeChange");
+                        }
+                    }
+                    function getCodeActionForNewImport(moduleSpecifier) {
+                        if (!cachedNewImportInsertPosition) {
+                            // insert after any existing imports
+                            var lastModuleSpecifierEnd = -1;
+                            for (var _i = 0, _a = sourceFile.imports; _i < _a.length; _i++) {
+                                var moduleSpecifier_1 = _a[_i];
+                                var end = moduleSpecifier_1.getEnd();
+                                if (!lastModuleSpecifierEnd || end > lastModuleSpecifierEnd) {
+                                    lastModuleSpecifierEnd = end;
+                                }
+                            }
+                            cachedNewImportInsertPosition = lastModuleSpecifierEnd > 0 ? sourceFile.getLineEndOfPosition(lastModuleSpecifierEnd) : sourceFile.getStart();
+                        }
+                        var getCanonicalFileName = ts.createGetCanonicalFileName(useCaseSensitiveFileNames);
+                        var moduleSpecifierWithoutQuotes = ts.stripQuotes(moduleSpecifier || getModuleSpecifierForNewImport());
+                        var importStatementText = isDefault
+                            ? "import " + name + " from \"" + moduleSpecifierWithoutQuotes + "\""
+                            : "import { " + name + " } from \"" + moduleSpecifierWithoutQuotes + "\"";
+                        // if this file doesn't have any import statements, insert an import statement and then insert a new line
+                        // between the only import statement and user code. Otherwise just insert the statement because chances
+                        // are there are already a new line seperating code and import statements.
+                        var newText = cachedNewImportInsertPosition === sourceFile.getStart()
+                            ? importStatementText + ";" + context.newLineCharacter + context.newLineCharacter
+                            : "" + context.newLineCharacter + importStatementText + ";";
+                        return createCodeAction(ts.Diagnostics.Import_0_from_1, [name, "\"" + moduleSpecifierWithoutQuotes + "\""], newText, { start: cachedNewImportInsertPosition, length: 0 }, sourceFile.fileName, "NewImport", moduleSpecifierWithoutQuotes);
+                        function getModuleSpecifierForNewImport() {
+                            var fileName = sourceFile.path;
+                            var moduleFileName = moduleSymbol.valueDeclaration.getSourceFile().path;
+                            var sourceDirectory = ts.getDirectoryPath(fileName);
+                            var options = context.program.getCompilerOptions();
+                            return tryGetModuleNameFromAmbientModule() ||
+                                tryGetModuleNameFromBaseUrl() ||
+                                tryGetModuleNameFromRootDirs() ||
+                                tryGetModuleNameFromTypeRoots() ||
+                                tryGetModuleNameAsNodeModule() ||
+                                ts.removeFileExtension(getRelativePath(moduleFileName, sourceDirectory));
+                            function tryGetModuleNameFromAmbientModule() {
+                                if (moduleSymbol.valueDeclaration.kind !== 261 /* SourceFile */) {
+                                    return moduleSymbol.name;
+                                }
+                            }
+                            function tryGetModuleNameFromBaseUrl() {
+                                if (!options.baseUrl) {
+                                    return undefined;
+                                }
+                                var normalizedBaseUrl = ts.toPath(options.baseUrl, ts.getDirectoryPath(options.baseUrl), getCanonicalFileName);
+                                var relativeName = tryRemoveParentDirectoryName(moduleFileName, normalizedBaseUrl);
+                                if (!relativeName) {
+                                    return undefined;
+                                }
+                                relativeName = removeExtensionAndIndexPostFix(relativeName);
+                                if (options.paths) {
+                                    for (var key in options.paths) {
+                                        for (var _i = 0, _a = options.paths[key]; _i < _a.length; _i++) {
+                                            var pattern = _a[_i];
+                                            var indexOfStar = pattern.indexOf("*");
+                                            if (indexOfStar === 0 && pattern.length === 1) {
+                                                continue;
+                                            }
+                                            else if (indexOfStar !== -1) {
+                                                var prefix = pattern.substr(0, indexOfStar);
+                                                var suffix = pattern.substr(indexOfStar + 1);
+                                                if (relativeName.length >= prefix.length + suffix.length &&
+                                                    ts.startsWith(relativeName, prefix) &&
+                                                    ts.endsWith(relativeName, suffix)) {
+                                                    var matchedStar = relativeName.substr(prefix.length, relativeName.length - suffix.length);
+                                                    return key.replace("\*", matchedStar);
+                                                }
+                                            }
+                                            else if (pattern === relativeName) {
+                                                return key;
+                                            }
+                                        }
+                                    }
+                                }
+                                return relativeName;
+                            }
+                            function tryGetModuleNameFromRootDirs() {
+                                if (options.rootDirs) {
+                                    var normalizedRootDirs = ts.map(options.rootDirs, function (rootDir) { return ts.toPath(rootDir, /*basePath*/ undefined, getCanonicalFileName); });
+                                    var normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, normalizedRootDirs);
+                                    var normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, normalizedRootDirs);
+                                    if (normalizedTargetPath !== undefined) {
+                                        var relativePath = normalizedSourcePath !== undefined ? getRelativePath(normalizedTargetPath, normalizedSourcePath) : normalizedTargetPath;
+                                        return ts.removeFileExtension(relativePath);
+                                    }
+                                }
+                                return undefined;
+                            }
+                            function tryGetModuleNameFromTypeRoots() {
+                                var typeRoots = ts.getEffectiveTypeRoots(options, context.host);
+                                if (typeRoots) {
+                                    var normalizedTypeRoots = ts.map(typeRoots, function (typeRoot) { return ts.toPath(typeRoot, /*basePath*/ undefined, getCanonicalFileName); });
+                                    for (var _i = 0, normalizedTypeRoots_1 = normalizedTypeRoots; _i < normalizedTypeRoots_1.length; _i++) {
+                                        var typeRoot = normalizedTypeRoots_1[_i];
+                                        if (ts.startsWith(moduleFileName, typeRoot)) {
+                                            var relativeFileName = moduleFileName.substring(typeRoot.length + 1);
+                                            return removeExtensionAndIndexPostFix(relativeFileName);
+                                        }
+                                    }
+                                }
+                            }
+                            function tryGetModuleNameAsNodeModule() {
+                                if (ts.getEmitModuleResolutionKind(options) !== ts.ModuleResolutionKind.NodeJs) {
+                                    // nothing to do here
+                                    return undefined;
+                                }
+                                var indexOfNodeModules = moduleFileName.indexOf("node_modules");
+                                if (indexOfNodeModules < 0) {
+                                    return undefined;
+                                }
+                                var relativeFileName;
+                                if (sourceDirectory.indexOf(moduleFileName.substring(0, indexOfNodeModules - 1)) === 0) {
+                                    // if node_modules folder is in this folder or any of its parent folder, no need to keep it.
+                                    relativeFileName = moduleFileName.substring(indexOfNodeModules + 13 /* "node_modules\".length */);
+                                }
+                                else {
+                                    relativeFileName = getRelativePath(moduleFileName, sourceDirectory);
+                                }
+                                relativeFileName = ts.removeFileExtension(relativeFileName);
+                                if (ts.endsWith(relativeFileName, "/index")) {
+                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                }
+                                else {
+                                    try {
+                                        var moduleDirectory = ts.getDirectoryPath(moduleFileName);
+                                        var packageJsonContent = JSON.parse(context.host.readFile(ts.combinePaths(moduleDirectory, "package.json")));
+                                        if (packageJsonContent) {
+                                            var mainFile = packageJsonContent.main || packageJsonContent.typings;
+                                            if (mainFile) {
+                                                var mainExportFile = ts.toPath(mainFile, moduleDirectory, getCanonicalFileName);
+                                                if (ts.removeFileExtension(mainExportFile) === ts.removeFileExtension(moduleFileName)) {
+                                                    relativeFileName = ts.getDirectoryPath(relativeFileName);
+                                                }
+                                            }
+                                        }
+                                    }
+                                    catch (e) { }
+                                }
+                                return relativeFileName;
+                            }
+                        }
+                        function getPathRelativeToRootDirs(path, rootDirs) {
+                            for (var _i = 0, rootDirs_2 = rootDirs; _i < rootDirs_2.length; _i++) {
+                                var rootDir = rootDirs_2[_i];
+                                var relativeName = tryRemoveParentDirectoryName(path, rootDir);
+                                if (relativeName !== undefined) {
+                                    return relativeName;
+                                }
+                            }
+                            return undefined;
+                        }
+                        function removeExtensionAndIndexPostFix(fileName) {
+                            fileName = ts.removeFileExtension(fileName);
+                            if (ts.endsWith(fileName, "/index")) {
+                                fileName = fileName.substr(0, fileName.length - 6 /* "/index".length */);
+                            }
+                            return fileName;
+                        }
+                        function getRelativePath(path, directoryPath) {
+                            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, false);
+                            return ts.moduleHasNonRelativeName(relativePath) ? "./" + relativePath : relativePath;
+                        }
+                        function tryRemoveParentDirectoryName(path, parentDirectory) {
+                            var index = path.indexOf(parentDirectory);
+                            if (index === 0) {
+                                return ts.endsWith(parentDirectory, ts.directorySeparator)
+                                    ? path.substring(parentDirectory.length)
+                                    : path.substring(parentDirectory.length + 1);
+                            }
+                            return undefined;
+                        }
+                    }
+                }
+                function createCodeAction(description, diagnosticArgs, newText, span, fileName, kind, moduleSpecifier) {
+                    return {
+                        description: ts.formatMessage.apply(undefined, [undefined, description].concat(diagnosticArgs)),
+                        changes: [{ fileName: fileName, textChanges: [{ newText: newText, span: span }] }],
+                        kind: kind,
+                        moduleSpecifier: moduleSpecifier
+                    };
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+    var codefix;
+    (function (codefix) {
+        codefix.registerCodeFix({
+            errorCodes: [
+                ts.Diagnostics._0_is_declared_but_never_used.code,
+                ts.Diagnostics.Property_0_is_declared_but_never_used.code
+            ],
+            getCodeActions: function (context) {
+                var sourceFile = context.sourceFile;
+                var start = context.span.start;
+                var token = ts.getTokenAtPosition(sourceFile, start);
+                // this handles var ["computed"] = 12;
+                if (token.kind === 20 /* OpenBracketToken */) {
+                    token = ts.getTokenAtPosition(sourceFile, start + 1);
+                }
+                switch (token.kind) {
+                    case 70 /* Identifier */:
+                        switch (token.parent.kind) {
+                            case 223 /* VariableDeclaration */:
+                                switch (token.parent.parent.parent.kind) {
+                                    case 211 /* ForStatement */:
+                                        var forStatement = token.parent.parent.parent;
+                                        var forInitializer = forStatement.initializer;
+                                        if (forInitializer.declarations.length === 1) {
+                                            return createCodeFix("", forInitializer.pos, forInitializer.end - forInitializer.pos);
+                                        }
+                                        else {
+                                            return removeSingleItem(forInitializer.declarations, token);
+                                        }
+                                    case 213 /* ForOfStatement */:
+                                        var forOfStatement = token.parent.parent.parent;
+                                        if (forOfStatement.initializer.kind === 224 /* VariableDeclarationList */) {
+                                            var forOfInitializer = forOfStatement.initializer;
+                                            return createCodeFix("{}", forOfInitializer.declarations[0].pos, forOfInitializer.declarations[0].end - forOfInitializer.declarations[0].pos);
+                                        }
+                                        break;
+                                    case 212 /* ForInStatement */:
+                                        // There is no valid fix in the case of:
+                                        //  for .. in
+                                        return undefined;
+                                    case 256 /* CatchClause */:
+                                        var catchClause = token.parent.parent;
+                                        var parameter = catchClause.variableDeclaration.getChildren()[0];
+                                        return createCodeFix("", parameter.pos, parameter.end - parameter.pos);
+                                    default:
+                                        var variableStatement = token.parent.parent.parent;
+                                        if (variableStatement.declarationList.declarations.length === 1) {
+                                            return createCodeFix("", variableStatement.pos, variableStatement.end - variableStatement.pos);
+                                        }
+                                        else {
+                                            var declarations = variableStatement.declarationList.declarations;
+                                            return removeSingleItem(declarations, token);
+                                        }
+                                }
+                            case 143 /* TypeParameter */:
+                                var typeParameters = token.parent.parent.typeParameters;
+                                if (typeParameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 2);
+                                }
+                                else {
+                                    return removeSingleItem(typeParameters, token);
+                                }
+                            case 144 /* Parameter */:
+                                var functionDeclaration = token.parent.parent;
+                                if (functionDeclaration.parameters.length === 1) {
+                                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                                }
+                                else {
+                                    return removeSingleItem(functionDeclaration.parameters, token);
+                                }
+                            // handle case where 'import a = A;'
+                            case 234 /* ImportEqualsDeclaration */:
+                                var importEquals = findImportDeclaration(token);
+                                return createCodeFix("", importEquals.pos, importEquals.end - importEquals.pos);
+                            case 239 /* ImportSpecifier */:
+                                var namedImports = token.parent.parent;
+                                if (namedImports.elements.length === 1) {
+                                    // Only 1 import and it is unused. So the entire declaration should be removed.
+                                    var importSpec = findImportDeclaration(token);
+                                    return createCodeFix("", importSpec.pos, importSpec.end - importSpec.pos);
+                                }
+                                else {
+                                    return removeSingleItem(namedImports.elements, token);
+                                }
+                            // handle case where "import d, * as ns from './file'" 
+                            // or "'import {a, b as ns} from './file'"
+                            case 236 /* ImportClause */:
+                                var importClause = token.parent;
+                                if (!importClause.namedBindings) {
+                                    var importDecl = findImportDeclaration(importClause);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    return createCodeFix("", importClause.name.pos, importClause.namedBindings.pos - importClause.name.pos);
+                                }
+                            case 237 /* NamespaceImport */:
+                                var namespaceImport = token.parent;
+                                if (namespaceImport.name == token && !namespaceImport.parent.name) {
+                                    var importDecl = findImportDeclaration(namespaceImport);
+                                    return createCodeFix("", importDecl.pos, importDecl.end - importDecl.pos);
+                                }
+                                else {
+                                    var start_4 = namespaceImport.parent.name.end;
+                                    return createCodeFix("", start_4, namespaceImport.parent.namedBindings.end - start_4);
+                                }
+                        }
+                        break;
+                    case 147 /* PropertyDeclaration */:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                    case 237 /* NamespaceImport */:
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                if (ts.isDeclarationName(token)) {
+                    return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos);
+                }
+                else if (ts.isLiteralComputedPropertyDeclarationName(token)) {
+                    return createCodeFix("", token.parent.parent.pos, token.parent.parent.end - token.parent.parent.pos);
+                }
+                else {
+                    return undefined;
+                }
+                function findImportDeclaration(token) {
+                    var importDecl = token;
+                    while (importDecl.kind != 235 /* ImportDeclaration */ && importDecl.parent) {
+                        importDecl = importDecl.parent;
+                    }
+                    return importDecl;
+                }
+                function createCodeFix(newText, start, length) {
+                    return [{
+                            description: ts.getLocaleSpecificMessage(ts.Diagnostics.Remove_unused_identifiers),
+                            changes: [{
+                                    fileName: sourceFile.fileName,
+                                    textChanges: [{ newText: newText, span: { start: start, length: length } }]
+                                }]
+                        }];
+                }
+                function removeSingleItem(elements, token) {
+                    if (elements[0] === token.parent) {
+                        return createCodeFix("", token.parent.pos, token.parent.end - token.parent.pos + 1);
+                    }
+                    else {
+                        return createCodeFix("", token.parent.pos - 1, token.parent.end - token.parent.pos + 1);
+                    }
+                }
+            }
+        });
+    })(codefix = ts.codefix || (ts.codefix = {}));
+})(ts || (ts = {}));
 ///<reference path='superFixes.ts' />
+///<reference path='importFixes.ts' />
+///<reference path='unusedIdentifierFixes.ts' />
 /// <reference path="..\compiler\program.ts"/>
 /// <reference path="..\compiler\commandLineParser.ts"/>
 /// <reference path='types.ts' />
@@ -76599,11 +77962,11 @@ var ts;
             return pos;
         };
         NodeObject.prototype.createSyntaxList = function (nodes) {
-            var list = createNode(291 /* SyntaxList */, nodes.pos, nodes.end, this);
+            var list = createNode(292 /* SyntaxList */, nodes.pos, nodes.end, this);
             list._children = [];
             var pos = nodes.pos;
-            for (var _i = 0, nodes_5 = nodes; _i < nodes_5.length; _i++) {
-                var node = nodes_5[_i];
+            for (var _i = 0, nodes_7 = nodes; _i < nodes_7.length; _i++) {
+                var node = nodes_7[_i];
                 if (pos < node.pos) {
                     pos = this.addSyntheticNodes(list._children, pos, node.pos);
                 }
@@ -76622,7 +77985,7 @@ var ts;
                 ts.scanner.setText((sourceFile || this.getSourceFile()).text);
                 children = [];
                 var pos_3 = this.pos;
-                var useJSDocScanner_1 = this.kind >= 278 /* FirstJSDocTagNode */ && this.kind <= 290 /* LastJSDocTagNode */;
+                var useJSDocScanner_1 = this.kind >= 278 /* FirstJSDocTagNode */ && this.kind <= 291 /* LastJSDocTagNode */;
                 var processNode = function (node) {
                     var isJSDocTagNode = ts.isJSDocTag(node);
                     if (!isJSDocTagNode && pos_3 < node.pos) {
@@ -76641,8 +78004,8 @@ var ts;
                     pos_3 = nodes.end;
                 };
                 // jsDocComments need to be the first children
-                if (this.jsDocComments) {
-                    for (var _i = 0, _a = this.jsDocComments; _i < _a.length; _i++) {
+                if (this.jsDoc) {
+                    for (var _i = 0, _a = this.jsDoc; _i < _a.length; _i++) {
                         var jsDocComment = _a[_i];
                         processNode(jsDocComment);
                     }
@@ -76866,6 +78229,20 @@ var ts;
         SourceFileObject.prototype.getPositionOfLineAndCharacter = function (line, character) {
             return ts.getPositionOfLineAndCharacter(this, line, character);
         };
+        SourceFileObject.prototype.getLineEndOfPosition = function (pos) {
+            var line = this.getLineAndCharacterOfPosition(pos).line;
+            var lineStarts = this.getLineStarts();
+            var lastCharPos;
+            if (line + 1 >= lineStarts.length) {
+                lastCharPos = this.getEnd();
+            }
+            if (!lastCharPos) {
+                lastCharPos = lineStarts[line + 1] - 1;
+            }
+            var fullText = this.getFullText();
+            // if the new line is "\r\n", we should return the last non-new-line-character position
+            return fullText[lastCharPos] === "\n" && fullText[lastCharPos - 1] === "\r" ? lastCharPos - 1 : lastCharPos;
+        };
         SourceFileObject.prototype.getNamedDeclarations = function () {
             if (!this.namedDeclarations) {
                 this.namedDeclarations = this.computeNamedDeclarations();
@@ -76887,9 +78264,9 @@ var ts;
             }
             function getDeclarationName(declaration) {
                 if (declaration.name) {
-                    var result_6 = getTextOfIdentifierOrLiteral(declaration.name);
-                    if (result_6 !== undefined) {
-                        return result_6;
+                    var result_7 = getTextOfIdentifierOrLiteral(declaration.name);
+                    if (result_7 !== undefined) {
+                        return result_7;
                     }
                     if (declaration.name.kind === 142 /* ComputedPropertyName */) {
                         var expr = declaration.name.expression;
@@ -77845,7 +79222,9 @@ var ts;
                     sourceFile: sourceFile,
                     span: span,
                     program: program,
-                    newLineCharacter: newLineChar
+                    newLineCharacter: newLineChar,
+                    host: host,
+                    cancellationToken: cancellationToken
                 };
                 var fixes = ts.codefix.getFixes(context);
                 if (fixes) {
@@ -78087,10 +79466,10 @@ var ts;
                     break;
                 default:
                     ts.forEachChild(node, walk);
-                    if (node.jsDocComments) {
-                        for (var _i = 0, _a = node.jsDocComments; _i < _a.length; _i++) {
-                            var jsDocComment = _a[_i];
-                            ts.forEachChild(jsDocComment, walk);
+                    if (node.jsDoc) {
+                        for (var _i = 0, _a = node.jsDoc; _i < _a.length; _i++) {
+                            var jsDoc = _a[_i];
+                            ts.forEachChild(jsDoc, walk);
                         }
                     }
             }
@@ -79416,7 +80795,7 @@ var ts;
                 if (result.error) {
                     return {
                         options: {},
-                        typingOptions: {},
+                        typeAcquisition: {},
                         files: [],
                         raw: {},
                         errors: [realizeDiagnostic(result.error, "\r\n")]
@@ -79426,7 +80805,7 @@ var ts;
                 var configFile = ts.parseJsonConfigFileContent(result.config, _this.host, ts.getDirectoryPath(normalizedFileName), /*existingOptions*/ {}, normalizedFileName);
                 return {
                     options: configFile.options,
-                    typingOptions: configFile.typingOptions,
+                    typeAcquisition: configFile.typeAcquisition,
                     files: configFile.fileNames,
                     raw: configFile.raw,
                     errors: realizeDiagnostics(configFile.errors, "\r\n")
@@ -79441,7 +80820,7 @@ var ts;
             var getCanonicalFileName = ts.createGetCanonicalFileName(/*useCaseSensitivefileNames:*/ false);
             return this.forwardJSONCall("discoverTypings()", function () {
                 var info = JSON.parse(discoverTypingsJson);
-                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typingOptions, info.unresolvedImports);
+                return ts.JsTyping.discoverTypings(_this.host, info.fileNames, ts.toPath(info.projectRootPath, info.projectRootPath, getCanonicalFileName), ts.toPath(info.safeListPath, info.safeListPath, getCanonicalFileName), info.packageNameToTypingLocation, info.typeAcquisition, info.unresolvedImports);
             });
         };
         return CoreServicesShimObject;
diff --git a/node_modules/typescript/lib/typingsInstaller.js b/node_modules/typescript/lib/typingsInstaller.js
index 13912d296..904f1444d 100644
--- a/node_modules/typescript/lib/typingsInstaller.js
+++ b/node_modules/typescript/lib/typingsInstaller.js
@@ -137,6 +137,9 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
+    ts.version = "2.2.0-dev.20161127";
+})(ts || (ts = {}));
+(function (ts) {
     var createObject = Object.create;
     ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
     function createMap(template) {
@@ -606,7 +609,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -621,6 +624,14 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; })
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
+            .map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -775,6 +786,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -1227,6 +1247,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
         for (var i = 0; i < str.length; i++) {
@@ -1777,6 +1805,16 @@ var ts;
         }
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
     function orderedRemoveItemAt(array, index) {
         for (var i = index; i < array.length - 1; i++) {
             array[i] = array[i + 1];
@@ -2811,7 +2849,7 @@ var ts;
         Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
         A_function_returning_never_cannot_have_a_reachable_end_point: { code: 2534, category: ts.DiagnosticCategory.Error, key: "A_function_returning_never_cannot_have_a_reachable_end_point_2534", message: "A function returning 'never' cannot have a reachable end point." },
         Enum_type_0_has_members_with_initializers_that_are_not_literals: { code: 2535, category: ts.DiagnosticCategory.Error, key: "Enum_type_0_has_members_with_initializers_that_are_not_literals_2535", message: "Enum type '{0}' has members with initializers that are not literals." },
-        Type_0_is_not_constrained_to_keyof_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_constrained_to_keyof_1_2536", message: "Type '{0}' is not constrained to 'keyof {1}'." },
+        Type_0_cannot_be_used_to_index_type_1: { code: 2536, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_to_index_type_1_2536", message: "Type '{0}' cannot be used to index type '{1}'." },
         Type_0_has_no_matching_index_signature_for_type_1: { code: 2537, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_matching_index_signature_for_type_1_2537", message: "Type '{0}' has no matching index signature for type '{1}'." },
         Type_0_cannot_be_used_as_an_index_type: { code: 2538, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_used_as_an_index_type_2538", message: "Type '{0}' cannot be used as an index type." },
         Cannot_assign_to_0_because_it_is_not_a_variable: { code: 2539, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_to_0_because_it_is_not_a_variable_2539", message: "Cannot assign to '{0}' because it is not a variable." },
@@ -2876,7 +2914,8 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
+        _0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here: { code: 2702, category: ts.DiagnosticCategory.Error, key: "_0_only_refers_to_a_type_but_is_being_used_as_a_namespace_here_2702", message: "'{0}' only refers to a type, but is being used as a namespace here." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -2947,6 +2986,7 @@ var ts;
         Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
         Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
         Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
+        Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1: { code: 4083, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_type_alias_has_or_is_using_private_name_1_4083", message: "Type parameter '{0}' of exported type alias has or is using private name '{1}'." },
         Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_library_to_resolve_the_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_definitions_for_0_found_at_1_and_2_Consider_installing_a_specific_version_of_this_librar_4090", message: "Conflicting definitions for '{0}' found at '{1}' and '{2}'. Consider installing a specific version of this library to resolve the conflict." },
         The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
         Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
@@ -3161,9 +3201,9 @@ var ts;
         A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
         JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
-        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
+        Unknown_type_acquisition_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_type_acquisition_option_0_17010", message: "Unknown type acquisition option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -3175,6 +3215,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 var ts;
@@ -5176,12 +5219,16 @@ var ts;
             description: ts.Diagnostics.Parse_in_strict_mode_and_emit_use_strict_for_each_source_file
         }
     ];
-    ts.typingOptionDeclarations = [
+    ts.typeAcquisitionDeclarations = [
         {
             name: "enableAutoDiscovery",
             type: "boolean",
         },
         {
+            name: "enable",
+            type: "boolean",
+        },
+        {
             name: "include",
             type: "list",
             element: {
@@ -5205,6 +5252,18 @@ var ts;
         sourceMap: false,
     };
     var optionNameMapCache;
+    function convertEnableAutoDiscoveryToEnable(typeAcquisition) {
+        if (typeAcquisition && typeAcquisition.enableAutoDiscovery !== undefined && typeAcquisition.enable === undefined) {
+            var result = {
+                enable: typeAcquisition.enableAutoDiscovery,
+                include: typeAcquisition.include || [],
+                exclude: typeAcquisition.exclude || []
+            };
+            return result;
+        }
+        return typeAcquisition;
+    }
+    ts.convertEnableAutoDiscoveryToEnable = convertEnableAutoDiscoveryToEnable;
     function getOptionNameMap() {
         if (optionNameMapCache) {
             return optionNameMapCache;
@@ -5484,14 +5543,15 @@ var ts;
             return {
                 options: {},
                 fileNames: [],
-                typingOptions: {},
+                typeAcquisition: {},
                 raw: json,
                 errors: [ts.createCompilerDiagnostic(ts.Diagnostics.Circularity_detected_while_resolving_configuration_Colon_0, resolutionStack.concat([resolvedPath]).join(" -> "))],
                 wildcardDirectories: {}
             };
         }
         var options = convertCompilerOptionsFromJsonWorker(json["compilerOptions"], basePath, errors, configFileName);
-        var typingOptions = convertTypingOptionsFromJsonWorker(json["typingOptions"], basePath, errors, configFileName);
+        var jsonOptions = json["typeAcquisition"] || json["typingOptions"];
+        var typeAcquisition = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         if (json["extends"]) {
             var _a = [undefined, undefined, undefined, {}], include = _a[0], exclude = _a[1], files = _a[2], baseOptions = _a[3];
             if (typeof json["extends"] === "string") {
@@ -5518,7 +5578,7 @@ var ts;
         return {
             options: options,
             fileNames: fileNames,
-            typingOptions: typingOptions,
+            typeAcquisition: typeAcquisition,
             raw: json,
             errors: errors,
             wildcardDirectories: wildcardDirectories,
@@ -5526,7 +5586,7 @@ var ts;
         };
         function tryExtendsName(extendedConfig) {
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -5589,7 +5649,7 @@ var ts;
                 errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_option_excludes_Did_you_mean_exclude));
             }
             else {
-                excludeSpecs = ["node_modules", "bower_components", "jspm_packages"];
+                excludeSpecs = includeSpecs ? [] : ["node_modules", "bower_components", "jspm_packages"];
                 var outDir = json["compilerOptions"] && json["compilerOptions"]["outDir"];
                 if (outDir) {
                     excludeSpecs.push(outDir);
@@ -5624,12 +5684,12 @@ var ts;
         return { options: options, errors: errors };
     }
     ts.convertCompilerOptionsFromJson = convertCompilerOptionsFromJson;
-    function convertTypingOptionsFromJson(jsonOptions, basePath, configFileName) {
+    function convertTypeAcquisitionFromJson(jsonOptions, basePath, configFileName) {
         var errors = [];
-        var options = convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName);
+        var options = convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName);
         return { options: options, errors: errors };
     }
-    ts.convertTypingOptionsFromJson = convertTypingOptionsFromJson;
+    ts.convertTypeAcquisitionFromJson = convertTypeAcquisitionFromJson;
     function convertCompilerOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
         var options = ts.getBaseFileName(configFileName) === "jsconfig.json"
             ? { allowJs: true, maxNodeModuleJsDepth: 2, allowSyntheticDefaultImports: true, skipLibCheck: true }
@@ -5637,9 +5697,10 @@ var ts;
         convertOptionsFromJson(ts.optionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_compiler_option_0, errors);
         return options;
     }
-    function convertTypingOptionsFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
-        var options = { enableAutoDiscovery: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
-        convertOptionsFromJson(ts.typingOptionDeclarations, jsonOptions, basePath, options, ts.Diagnostics.Unknown_typing_option_0, errors);
+    function convertTypeAcquisitionFromJsonWorker(jsonOptions, basePath, errors, configFileName) {
+        var options = { enable: ts.getBaseFileName(configFileName) === "jsconfig.json", include: [], exclude: [] };
+        var typeAcquisition = convertEnableAutoDiscoveryToEnable(jsonOptions);
+        convertOptionsFromJson(ts.typeAcquisitionDeclarations, typeAcquisition, basePath, options, ts.Diagnostics.Unknown_type_acquisition_option_0, errors);
         return options;
     }
     function convertOptionsFromJson(optionDeclarations, jsonOptions, basePath, defaultOptions, diagnosticMessage, errors) {
@@ -5858,9 +5919,9 @@ var ts;
             "constants", "process", "v8", "timers", "console"
         ];
         var nodeCoreModules = ts.arrayToMap(JsTyping.nodeCoreModuleList, function (x) { return x; });
-        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typingOptions, unresolvedImports) {
+        function discoverTypings(host, fileNames, projectRootPath, safeListPath, packageNameToTypingLocation, typeAcquisition, unresolvedImports) {
             var inferredTypings = ts.createMap();
-            if (!typingOptions || !typingOptions.enableAutoDiscovery) {
+            if (!typeAcquisition || !typeAcquisition.enable) {
                 return { cachedTypingPaths: [], newTypingNames: [], filesToWatch: [] };
             }
             fileNames = ts.filter(ts.map(fileNames, ts.normalizePath), function (f) {
@@ -5874,8 +5935,8 @@ var ts;
             var filesToWatch = [];
             var searchDirs = [];
             var exclude = [];
-            mergeTypings(typingOptions.include);
-            exclude = typingOptions.exclude || [];
+            mergeTypings(typeAcquisition.include);
+            exclude = typeAcquisition.exclude || [];
             var possibleSearchDirs = ts.map(fileNames, ts.getDirectoryPath);
             if (projectRootPath) {
                 possibleSearchDirs.push(projectRootPath);
@@ -6058,6 +6119,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -6619,9 +6681,17 @@ var ts;
                 isEnabled: function () { return false; },
                 writeLine: ts.noop
             };
-            function typingToFileName(cachePath, packageName, installTypingHost) {
-                var result = ts.resolveModuleName(packageName, ts.combinePaths(cachePath, "index.d.ts"), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, installTypingHost);
-                return result.resolvedModule && result.resolvedModule.resolvedFileName;
+            function typingToFileName(cachePath, packageName, installTypingHost, log) {
+                try {
+                    var result = ts.resolveModuleName(packageName, ts.combinePaths(cachePath, "index.d.ts"), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, installTypingHost);
+                    return result.resolvedModule && result.resolvedModule.resolvedFileName;
+                }
+                catch (e) {
+                    if (log.isEnabled()) {
+                        log.writeLine("Failed to resolve " + packageName + " in folder '" + cachePath + "': " + e.message);
+                    }
+                    return undefined;
+                }
             }
             var PackageNameValidationResult;
             (function (PackageNameValidationResult) {
@@ -6710,7 +6780,7 @@ var ts;
                         }
                         this.processCacheLocation(req.cachePath);
                     }
-                    var discoverTypingsResult = ts.JsTyping.discoverTypings(this.installTypingHost, req.fileNames, req.projectRootPath, this.safeListPath, this.packageNameToTypingLocation, req.typingOptions, req.unresolvedImports);
+                    var discoverTypingsResult = ts.JsTyping.discoverTypings(this.installTypingHost, req.fileNames, req.projectRootPath, this.safeListPath, this.packageNameToTypingLocation, req.typeAcquisition, req.unresolvedImports);
                     if (this.log.isEnabled()) {
                         this.log.writeLine("Finished typings discovery: " + JSON.stringify(discoverTypingsResult));
                     }
@@ -6750,8 +6820,9 @@ var ts;
                                 if (!packageName) {
                                     continue;
                                 }
-                                var typingFile = typingToFileName(cacheLocation, packageName, this.installTypingHost);
+                                var typingFile = typingToFileName(cacheLocation, packageName, this.installTypingHost, this.log);
                                 if (!typingFile) {
+                                    this.missingTypingsSet[packageName] = true;
                                     continue;
                                 }
                                 var existingTypingFile = this.packageNameToTypingLocation[packageName];
@@ -6782,7 +6853,7 @@ var ts;
                     var result = [];
                     for (var _i = 0, typingsToInstall_1 = typingsToInstall; _i < typingsToInstall_1.length; _i++) {
                         var typing = typingsToInstall_1[_i];
-                        if (this.missingTypingsSet[typing]) {
+                        if (this.missingTypingsSet[typing] || this.packageNameToTypingLocation[typing]) {
                             continue;
                         }
                         var validationResult = validatePackageName(typing);
@@ -6858,7 +6929,8 @@ var ts;
                             _this.sendResponse({
                                 kind: server.EventInstall,
                                 packagesToInstall: scopedTypings,
-                                installSuccess: ok
+                                installSuccess: ok,
+                                typingsInstallerVersion: ts.version
                             });
                         }
                         if (!ok) {
@@ -6872,17 +6944,14 @@ var ts;
                             return;
                         }
                         if (_this.log.isEnabled()) {
-                            _this.log.writeLine("Requested to install typings " + JSON.stringify(scopedTypings) + ", installed typings " + JSON.stringify(scopedTypings));
+                            _this.log.writeLine("Installed typings " + JSON.stringify(scopedTypings));
                         }
                         var installedTypingFiles = [];
-                        for (var _a = 0, scopedTypings_1 = scopedTypings; _a < scopedTypings_1.length; _a++) {
-                            var t = scopedTypings_1[_a];
-                            var packageName = ts.getBaseFileName(t);
-                            if (!packageName) {
-                                continue;
-                            }
-                            var typingFile = typingToFileName(cachePath, packageName, _this.installTypingHost);
+                        for (var _a = 0, filteredTypings_2 = filteredTypings; _a < filteredTypings_2.length; _a++) {
+                            var packageName = filteredTypings_2[_a];
+                            var typingFile = typingToFileName(cachePath, packageName, _this.installTypingHost, _this.log);
                             if (!typingFile) {
+                                _this.missingTypingsSet[packageName] = true;
                                 continue;
                             }
                             if (!_this.packageNameToTypingLocation[packageName]) {
@@ -6931,7 +7000,7 @@ var ts;
                 TypingsInstaller.prototype.createSetTypings = function (request, typings) {
                     return {
                         projectName: request.projectName,
-                        typingOptions: request.typingOptions,
+                        typeAcquisition: request.typeAcquisition,
                         compilerOptions: request.compilerOptions,
                         typings: typings,
                         unresolvedImports: request.unresolvedImports,
@@ -7022,14 +7091,13 @@ var ts;
                         _this.log.writeLine("Process id: " + process.pid);
                     }
                     _this.npmPath = getNPMLocation(process.argv[0]);
-                    var execSync;
-                    (_a = require("child_process"), _this.exec = _a.exec, execSync = _a.execSync, _a);
+                    (_this.execSync = require("child_process").execSync);
                     _this.ensurePackageDirectoryExists(globalTypingsCacheLocation);
                     try {
                         if (_this.log.isEnabled()) {
                             _this.log.writeLine("Updating " + TypesRegistryPackageName + " npm package...");
                         }
-                        execSync(_this.npmPath + " install " + TypesRegistryPackageName, { cwd: globalTypingsCacheLocation, stdio: "ignore" });
+                        _this.execSync(_this.npmPath + " install " + TypesRegistryPackageName, { cwd: globalTypingsCacheLocation, stdio: "ignore" });
                     }
                     catch (e) {
                         if (_this.log.isEnabled()) {
@@ -7038,7 +7106,6 @@ var ts;
                     }
                     _this.typesRegistry = loadTypesRegistryFile(getTypesRegistryFileLocation(globalTypingsCacheLocation), _this.installTypingHost, _this.log);
                     return _this;
-                    var _a;
                 }
                 NodeTypingsInstaller.prototype.listen = function () {
                     var _this = this;
@@ -7062,18 +7129,26 @@ var ts;
                     }
                 };
                 NodeTypingsInstaller.prototype.installWorker = function (requestId, args, cwd, onRequestCompleted) {
-                    var _this = this;
                     if (this.log.isEnabled()) {
                         this.log.writeLine("#" + requestId + " with arguments'" + JSON.stringify(args) + "'.");
                     }
-                    var command = this.npmPath + " install " + args.join(" ") + " --save-dev";
+                    var command = this.npmPath + " install " + args.join(" ") + " --save-dev --user-agent=\"typesInstaller/" + ts.version + "\"";
                     var start = Date.now();
-                    this.exec(command, { cwd: cwd }, function (err, stdout, stderr) {
-                        if (_this.log.isEnabled()) {
-                            _this.log.writeLine("npm install #" + requestId + " took: " + (Date.now() - start) + " ms" + ts.sys.newLine + "stdout: " + stdout + ts.sys.newLine + "stderr: " + stderr);
-                        }
-                        onRequestCompleted(!err);
-                    });
+                    var stdout;
+                    var stderr;
+                    var hasError = false;
+                    try {
+                        stdout = this.execSync(command, { cwd: cwd });
+                    }
+                    catch (e) {
+                        stdout = e.stdout;
+                        stderr = e.stderr;
+                        hasError = true;
+                    }
+                    if (this.log.isEnabled()) {
+                        this.log.writeLine("npm install #" + requestId + " took: " + (Date.now() - start) + " ms" + ts.sys.newLine + "stdout: " + (stdout && stdout.toString()) + ts.sys.newLine + "stderr: " + (stderr && stderr.toString()));
+                    }
+                    onRequestCompleted(!hasError);
                 };
                 return NodeTypingsInstaller;
             }(typingsInstaller.TypingsInstaller));
diff --git a/node_modules/typescript/package.json b/node_modules/typescript/package.json
index 1e155af85..cd55aa06f 100644
--- a/node_modules/typescript/package.json
+++ b/node_modules/typescript/package.json
@@ -2,7 +2,7 @@
     "name": "typescript",
     "author": "Microsoft Corp.",
     "homepage": "http://typescriptlang.org/",
-    "version": "2.2.0-dev.20161115",
+    "version": "2.2.0-dev.20161127",
     "license": "Apache-2.0",
     "description": "TypeScript is a language for application scale JavaScript development",
     "keywords": [