[PATCH v2 0/4] MR6502: include: Fix MIDL_INTERFACE definition.

[Rémi Bernon (＠rbernon)]

Clang in MSVC mode supports this and __uuidof fails / complains about missing virtual destructor otherwise.

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  v2: include: Add DECLSPEC_UUID/DECLSPEC_NOVTABLE to MIDL_INTERFACE.
      include: Use winnt.h DECLSPEC_NOVTABLE definition in rpcndr.h.
      include: Use winnt.h DECLSPEC_UUID definition in rpcndr.h.
      include: Introduce a new __has_declspec_attribute macro.

https://gitlab.winehq.org/wine/wine/-/merge_requests/6502