HeapAllocator stores the pointer returned by HeapAlloc right after the
data block and, after the recent allocator refactoring, the space for
this pointer was not taken into account in the calculation of the final
block size.
Fixes #5830
58ee5f4e61LemonBoy committed on 9/20/2020, 5:21:29 AM· committed by Andrew Kelleyparentf92d01c