refactor: Move `CTxMemPoolEntry` class to its own module

This change nukes the policy/fees->mempool circular dependency.

Easy to review using `diff --color-moved=dimmed-zebra`.

2 files changed, 2 insertions, 1 deletions

diff --git a/test/lint/lint-circular-dependencies.py b/test/lint/lint-circular-dependencies.py
index abf38ca79b..b69bbe7cd0 100755
--- a/test/lint/lint-circular-dependencies.py
+++ b/test/lint/lint-circular-dependencies.py
@@ -15,7 +15,6 @@ EXPECTED_CIRCULAR_DEPENDENCIES = (
     "chainparamsbase -> util/system -> chainparamsbase",
     "node/blockstorage -> validation -> node/blockstorage",
     "node/utxo_snapshot -> validation -> node/utxo_snapshot",
-    "policy/fees -> txmempool -> policy/fees",
     "qt/addresstablemodel -> qt/walletmodel -> qt/addresstablemodel",
     "qt/recentrequeststablemodel -> qt/walletmodel -> qt/recentrequeststablemodel",
     "qt/sendcoinsdialog -> qt/walletmodel -> qt/sendcoinsdialog",
diff --git a/test/sanitizer_suppressions/ubsan b/test/sanitizer_suppressions/ubsan
index 67ef512895..a917864fe8 100644
--- a/test/sanitizer_suppressions/ubsan
+++ b/test/sanitizer_suppressions/ubsan
@@ -53,6 +53,7 @@ unsigned-integer-overflow:policy/fees.cpp
 unsigned-integer-overflow:prevector.h
 unsigned-integer-overflow:script/interpreter.cpp
 unsigned-integer-overflow:txmempool.cpp
+unsigned-integer-overflow:txmempool_entry.cpp
 implicit-integer-sign-change:compat/stdin.cpp
 implicit-integer-sign-change:compressor.h
 implicit-integer-sign-change:crypto/
@@ -62,6 +63,7 @@ implicit-integer-sign-change:script/bitcoinconsensus.cpp
 implicit-integer-sign-change:script/interpreter.cpp
 implicit-integer-sign-change:serialize.h
 implicit-integer-sign-change:txmempool.cpp
+implicit-integer-sign-change:txmempool_entry.cpp
 implicit-signed-integer-truncation:crypto/
 implicit-unsigned-integer-truncation:crypto/
 shift-base:arith_uint256.cpp