H* caching enabled; more asserts; commented out a buggy line.
H* caching enabled; more asserts; commented out a buggy line.

The call to free_all_nodes(closed[level]) around line 186 is causing
problems.   It's like having the domain (i.e. TilesInstance15) free
all the nodes in the closed list is not freeing the correct nodes, and
so the memory used gets double allocated, then corrupted.

Ug.

bradlarsen/switchback,bradlarsen/switchback