[PATCH 2/2] ntdll: allow HeapSize to work with global GMEM_MOVEABLE pointers

[Damjan Jovanovic]

This patch attempts to address the problem by patching RtlSizeHeap()
to subtract 8 (8 being HGLOBAL_STORAGE) from the pointer if it doesn't
seem like a valid pointer, to cater to GMEM_MOVEABLE pointers actually
starting 8 bytes earlier.

I am not familiar with the internals of Windows' memory management so
this might not be the best solution, but all the heap tests pass so it
can't be that wrong either ;). It certainly gets wxWidgets
applications working.

Signed-off-by: Damjan Jovanovic <damjan.jov(a)gmail.com>
---
 dlls/kernel32/tests/heap.c |  2 +-
 dlls/ntdll/heap.c          | 50 ++++++++++++++++++++++++--------------
 2 files changed, 33 insertions(+), 19 deletions(-)