[PATCH v2 0/2] MR1666: Fix GCC12 warnings in msvcr* tests.

[eric pouech (＠epo)]

--
  v2: msvcrt: Construct a real C++ object to test against.
      msvcr90: Fix warning on object access tests.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/1666