Recent valgrind regressions in msxml3

[Dan Kegel]

Hi Alistair,
I'm seeing some regressions in msxml3 in yesterday's git; see
http://kegel.com/wine/valgrind/logs-2008-03-05/vg-msxml3_domdoc-diff.txt
e.g.
+ Invalid read of size 4
+    at  HEAP_ValidateInUseArena (heap.c:925)
+    by  RtlFreeHeap (heap.c:1288)
+    by  SysFreeString (oleaut.c:196)
+    by  test_domdoc (domdoc.c:658)
+    by  func_domdoc (domdoc.c:2875)
+    by  run_test (test.h:406)
+    by  main (test.h:455)
etc.
Could you have a look?  Also, have you tried running
Valgrind yourself?  It's not hard at all these days.
- Dan