[PATCH v2 0/3] MR6522: include: Use __has_declspec_attribute in corecrt.h.

[Jacek Caban (＠jacek)]

To keep it in sync with winnt.h.

--
  v2: include: Use __has_declspec_attribute in basetsd.h.
      include: Remove DECLSPEC_ALIGN define from sys/stat.h.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6522