[PATCH v2 0/1] MR10051: ws2_32: Allow using duplicated socket handles in closesocket().

[Bernhard Übelacker (＠bernhardu)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56927

This is similar to a08d6d8b, but just for `closesocket()`.

[Testbot run with this patch](https://testbot.winehq.org/JobDetails.pl?Key=161786)

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  v2: ws2_32: Allow using duplicated socket handles in closesocket().
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10051