[PATCH v4 0/1] MR20: include/msvcrt: redefine tolower & toupper with wint_t parameters

[eric pouech (＠epo)]

it conflicts in C++ compilation with MINGW builtin definitions

Signed-off-by: Eric Pouech <eric.pouech(a)gmail.com>

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  v4: include/msvcrt: Redefine towlower* & towupper* with wint_t types.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/20