Re: [PATCH 0/1] MR2946: iphlpapi: Add GetPerTcpConnectionEStats stub.

[Huw Davies (＠huw)]

Could we add the prototype to `iphlpapi.h` and while we're at it, add `SetPerTcpConnectionEStats()`'s prototype too?  Doing this all in the same commit is fine.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/2946#note_34334