[PATCH v2 0/2] MR10627: winemac.drv, wintab32: Some fixes for Cocoa-initiated quits

[Tim Clem (＠tclem)]

The EA app was refusing to exit when quit via Cocoa for two reasons:

- the wintab32 window was responding 0 to WM_QUERYENDSESSION
- the app itself closes a window in response to WM_QUERYENDSESSION, and we weren't expecting the corresponding WM_ENDSESSION to fail

--
  v2: winemac.drv: Handle windows becoming invalid between WM_QUERYENDSESSION and WM_ENDSESSION.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10627