[Bug 36558] valgrind shows a definite leak in comctl32/tests/treeview.c

https://bugs.winehq.org/show_bug.cgi?id=36558

--- Comment #1 from Austin English  ---
A second one:
==26061== 560 bytes in 4 blocks are definitely lost in loss record 756 of 921
==26061==    at 0x7BC4C6DF: notify_alloc (heap.c:255)
==26061==    by 0x7BC50F23: RtlAllocateHeap (heap.c:1716)
==26061==    by 0x4FE3841: ImageListImpl_CreateInstance (imagelist.c:3697)
==26061==    by 0x4FDC1EA: ImageList_Create (imagelist.c:772)
==26061==    by 0x505A37F: TREEVIEW_InitCheckboxes (treeview.c:2954)
==26061==    by 0x505FD23: TREEVIEW_StyleChanged (treeview.c:5495)
==26061==    by 0x5060DE8: TREEVIEW_WindowProc (treeview.c:5838)
==26061==    by 0x538D4F5: ??? (winproc.c:173)
==26061==    by 0x538D66A: call_window_proc (winproc.c:244)
==26061==    by 0x538E858: WINPROC_CallProcAtoW (winproc.c:603)
==26061==    by 0x538FA49: CallWindowProcA (winproc.c:961)
==26061==    by 0x4D435DF: TreeviewWndProc (treeview.c:315)
==26061==    by 0x538D4F5: ??? (winproc.c:173)
==26061==    by 0x538D66A: call_window_proc (winproc.c:244)
==26061==    by 0x538F697: WINPROC_CallProcWtoA (winproc.c:858)
==26061==    by 0x538F842: WINPROC_call_window (winproc.c:902)
==26061==    by 0x534C11C: call_window_proc (message.c:2223)
==26061==    by 0x534EFBA: send_message (message.c:3260)
==26061==    by 0x534F5D8: SendMessageW (message.c:3454)
==26061==    by 0x5381439: WIN_SetWindowLong (win.c:2515)
==26061==