[PATCH v3 0/3] MR6286: win32u: Support setting host IME composition window position for ImmSetCompositionWindow().

[Zhiyi Zhang (＠zhiyi)]

Based on the wine-staging patch winex11-CandidateWindowPos from Felix Yan with works from
Muneyuki Noguchi and Sebastian Lackner.

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  v3: win32u: Set host IME composition window position in NtUserShowCaret().
      win32u: Set host IME composition window position in set_caret_pos().
      win32u: Support setting host IME composition window position for ImmSetCompositionWindow().
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6286