[PATCH v15 0/2] MR4372: kernel32: impl sync barrier

[quininer (＠quininer)]

This is my first time contributing wine and there are a lot of things I'm not sure about, so any comments are welcome. :)

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  v15: kernel32: add sync barrier test
       kernel32: impl sync barrier
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/4372