[Bug 36061] winedbg crash dialog shows a leak in imm32

https://bugs.winehq.org/show_bug.cgi?id=36061

--- Comment #4 from Austin English  ---
I can also reproduce it with comdlg32/tests/filedlg.c, which may be easier for
debugging:
==30451== 152 bytes in 1 blocks are definitely lost in loss record 734 of 1,115
==30451==    at 0x7BC4C735: notify_alloc (heap.c:255)
==30451==    by 0x7BC50F79: RtlAllocateHeap (heap.c:1716)
==30451==    by 0x7B84586B: HeapAlloc (heap.c:271)
==30451==    by 0x7B845BA0: GlobalAlloc (heap.c:388)
==30451==    by 0x78E11A6: ImmCreateIMCC (imm.c:2738)
==30451==    by 0x78DA9B6: ImmCreateContext (imm.c:682)
==30451==    by 0x78DCF93: ImmGetContext (imm.c:1422)
==30451==    by 0x78E1807: ImmProcessKey (imm.c:2891)
==30451==    by 0x535EB24: process_keyboard_message (message.c:2469)
==30451==    by 0x535F304: process_hardware_message (message.c:2692)
==30451==    by 0x535FFBD: peek_message (message.c:2900)
==30451==    by 0x5361E3A: PeekMessageW (message.c:3757)
==30451==    by 0x531ED24: DIALOG_DoDialogBox (dialog.c:803)
==30451==    by 0x531F0DB: DialogBoxIndirectParamAorW (dialog.c:892)
==30451==    by 0x531F133: DialogBoxIndirectParamA (dialog.c:902)
==30451==    by 0x5E0D4B0: GetFileName95 (filedlg.c:324)
==30451==    by 0x5E0D9F8: GetFileDialog95A (filedlg.c:457)
==30451==    by 0x5E17262: GetOpenFileNameA (filedlg.c:4102)
==30451==    by 0x49578FF: test_resize (filedlg.c:551)
==30451==    by 0x495A1C2: func_filedlg (filedlg.c:1247)
==30451==