Merge #14151: windows: Fix remaining compiler warnings (MSVC)

b9dafe7d9ffcbe7928ffbfba816b54e196c57664 Fix remaining compiler warnings (MSVC). Move disabling of specific warnings from /nowarn to project file. (practicalswift)

Pull request description:

  Fix remaining compiler warnings (MSVC).

  Before:

  ```
  $ msbuild /p:TrackFileAccess=false /p:CLToolExe=clcache.exe build_msvc\bitcoin.sln /m /v:q /nowarn:C4244;C4267;C4715 /nologo
  …\script\script.cpp(272): warning C4018: '>': signed/unsigned mismatch
  …\test\allocator_tests.cpp(147): warning C4312: 'reinterpret_cast': conversion from 'int' to 'void *' of greater size
  …\boost\test\tools\old\impl.hpp(107): warning C4805: '==': unsafe mix of type 'const Left' and type 'const Right' in operation
  …\test\crypto_tests.cpp(535): warning C4334: '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)
  …\test\script_tests.cpp(188): warning C4805: '==': unsafe mix of type 'int' and type 'bool' in operation
  …\test\script_tests.cpp(190): warning C4805: '==': unsafe mix of type 'int' and type 'bool' in operation
  …\test\script_tests.cpp(191): warning C4805: '==': unsafe mix of type 'int' and type 'bool' in operation
  $
  ```

  After:

  ```
  $ msbuild /p:TrackFileAccess=false /p:CLToolExe=clcache.exe build_msvc\bitcoin.sln /m /v:q /nowarn:C4244;C4267;C4715;C4805 /nologo
  $
  ```

Tree-SHA512: 5b30334d3804e869779e77dad75a799e8e5e7eb2e08634cd40035cce140edd623cbb6c8b5806d2158c3df97888d3ea9ff4b8b6a5a83de3fe2cb361e29588c115

0 files changed, 0 insertions, 0 deletions