[PATCH v4 0/6] MR2769: imm32: Factor NotifyIME implementations.

[Rémi Bernon]

Doing first instead of https://gitlab.winehq.org/wine/wine/-/merge_requests/2637, as it should be more straightforward.

--
  v4: winemac: Use the default IME implementation for NotifyIME.
      winex11: Move NotifyIME to the default IME implementation.
      win32u: Introduce new NtUserNotifyIMEStatus syscall.
      winex11: Simplify NotifyIME with NI_COMPOSITIONSTR / CPS_COMPLETE.
      winex11: Clear the composition string when input context is closed.
      winex11: Use a helper to change internal composition status.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2769