[PATCH v2 0/4] MR4893: msvcp140: Add _XGetLastError implementation.

[Piotr Caban (＠piotr)]

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  v2: msvcp140: Recognize no error case in _Syserror_map.
      msvcp140/tests: Fix _Syserror_map(0) test failure in newest msvcp140.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/4893