[Bug 36924] New: valgrind shows several unitialized variables in dlls/ieframe/tests/ie.c (nsPresContext::Release)

https://bugs.winehq.org/show_bug.cgi?id=36924

Bug ID: 36924
           Summary: valgrind shows several unitialized variables in
                    dlls/ieframe/tests/ie.c (nsPresContext::Release)
           Product: Wine
           Version: 1.7.22
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase, valgrind
          Severity: normal
          Priority: P2
         Component: ieframe
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 49034
  --> https://bugs.winehq.org/attachment.cgi?id=49034
valgrind log

A lot of these, going to attach the full output, but here's an example:
==13451== Conditional jump or move depends on uninitialised value(s)
==13451==    at 0x1015803C: nsPresContext::Release (in
/home/austin/.wine/drive_c/windows/system32/gecko/2.24/wine_gecko/xul.dll)
==13451==    by 0x10283192: nsContentUtils::DispatchTrustedEvent
(nscontentutils.cpp:3271)
==13451==    by 0x1029CB98: nsDocument::UpdateVisibilityState
(nsdocument.cpp:11052)
==13451==    by 0x102A9136: nsDocument::OnPageHide (nsdocument.cpp:8140)
==13451==    by 0x101493A9: nsDocumentViewer::PageHide
(nsdocumentviewer.cpp:1261)
==13451==    by 0x1062FDDF: nsDocShell::FirePageHideNotification
(nsdocshell.cpp:1621)
==13451==    by 0x106300C1: nsDocShell::CreateContentViewer
(nsdocshell.cpp:7975)
==13451==    by 0x1061AE8C: nsDSURIContentListener::DoContent
(nsdsuricontentlistener.cpp:123)
==13451==    by 0x106351D1: nsDocumentOpenInfo::TryContentListener
(nsuriloader.cpp:659)
==13451==    by 0x10635827: nsDocumentOpenInfo::DispatchContent
(nsuriloader.cpp:360)
==13451==    by 0x58FFFF: ???
==13451==  Uninitialised value was created by a client request
==13451==    at 0x7BC4BF0A: mark_block_uninitialized (heap.c:209)
==13451==    by 0x7BC4C075: initialize_block (heap.c:240)
==13451==    by 0x7BC50981: RtlAllocateHeap (heap.c:1717)
==13451==    by 0x77D619E: msvcrt_heap_alloc (heap.c:70)
==13451==    by 0x77D6D63: MSVCRT_malloc (heap.c:408)
==13451==    by 0x80C71095: moz_xmalloc (mozalloc.cpp:54)
==13451==    by 0x109B96F7: NS_InitXPCOM2 (nsxpcominit.cpp:464)
==13451==    by 0x7566F26: init_xpcom (nsembed.c:698)
==13451==    by 0x7567399: load_gecko (nsembed.c:774)
==13451==    by 0x756BD01: create_nscontainer (nsembed.c:2042)
==13451==    by 0x74EC2F6: HTMLDocument_Create (htmldoc.c:4756)
==13451==    by 0x7555F7D: ClassFactory_CreateInstance (main.c:238)
==13451==    by 0x5038C6B: CoCreateInstance (unknwn.h:226)
==13451==    by 0x4D63202: create_mime_object (binding.c:258)
==13451==    by 0x4D635A2: create_object (binding.c:308)
==13451==    by 0x4D660AB: report_data (binding.c:1077)
==13451==    by 0x4D663F4: InternetProtocolSink_ReportData (binding.c:1126)
==13451==    by 0x4D6B723: ProtocolSinkHandler_ReportData (urlmon.h:3113)
==13451==    by 0x4D6C274: report_data_proc (urlmon.h:3113)
==13451==    by 0x4D67FCF: process_tasks (bindprot.c:57)