The LFH being automatically enabled after several allocations of the same sizes are done, its reallocation strategy differs from non-LFH blocks and was messing with the tests. I previously removed the HEAP_REALLOC_IN_PLACE_ONLY flag from LocalReAlloc, based on the test results, but the outcome is different when a non-LFH block size is used.
This adds more tests and restores the flag to fix the regression.