- Add NtAllocateVirtualMemory test, which is a small stress test for virtual memory allocation/freeing/reuse
- Can be used to reproduce bug 5857 in third stage (install with VT-x enabled, then disable for the test)
- Shows that the bug is a race condition in Mm, and not heap's fault
- I've put ASSERTs instead of ok's for easier debugging
svn path=/trunk/; revision=54548
