[PATCH v2 0/6] MR3346: win32u/wow64win: Client callback interface improvements.

[Jacek Caban (＠jacek)]

This is a preparation for better handling of message packing between win32u and user32. It also removes some hacks that were needed before syscall separation completion.

--
  v2: win32u: Pass module name before packed lparam in win_hook_params.
      user32: Always use NtCallbackReturn to pass result from User32CallWindowsHook.
      wow64win: Convert parameters in place in wow64_NtUserCallWindowsHook.
      wow64win: Conver parameters in place in wow64_NtUserCallWinProc.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/3346