Re: [PATCH v2 1/1] ntdll: Do not use find_subheap() to find the subheap corresponding to an uncommitted region.

[Zebediah Figura]

I didn't include a test with this because I don't think it's possible to 
reliably trigger the condition. It relies on an allocated block 
stretching to the end of a subheap (which I think it's possible to make 
happen reliably, although it'd end up relying on internal heap details 
to some degree) but also on two subsequent subheaps being allocated to 
contiguous VM slices in reverse order.

I'm able to consistently trigger it (on 32-bit) with the attached diff 
to the heap tests, though.