Re: [PATCH v3 0/3] MR1247: windows.gaming.ui.gamebar: Add DLL.

[Paul Gofman (＠gofman)]

v3:
 - add check_interface() and remove some tests checking things common to winrt;
 - change test style;
 - add tests for NULL pointer and return E_POINTER instead of E_INVALIDARG.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/1247#note_13093