[Bug 36405] valgrind shows a leak in msxml3/tests/xmlview.c

https://bugs.winehq.org/show_bug.cgi?id=36405

--- Comment #1 from Austin English  ---
Another:
==17429== 112 bytes in 1 blocks are definitely lost in loss record 5,169 of
6,599
==17429==    at 0x7BC4C75D: notify_alloc (heap.c:255)
==17429==    by 0x7BC50FA1: RtlAllocateHeap (heap.c:1716)
==17429==    by 0x72F5082: heap_alloc_zero (mshtml_private.h:1053)
==17429==    by 0x72F8D16: get_event_target (htmlevent.c:1296)
==17429==    by 0x72F96A6: update_cp_events (htmlevent.c:1516)
==17429==    by 0x72DD8D0: HTMLDocument_on_advise (htmldoc.c:3839)
==17429==    by 0x72B5D6E: ConnectionPoint_Advise (conpoint.c:249)
==17429==    by 0x4DB749F: test_Load (ocidl.h:3659)
==17429==    by 0x4DB790E: func_xmlview (xmlview.c:270)
==17429==    by 0x4DB870C: run_test (test.h:584)
==17429==    by 0x4DB8AFB: main (test.h:654)
==17429==