FreeBlock        1668 MMgc/GC.cpp    void GC::FreeBlock(void *ptr, uint32_t size)
FreeBlock        1228 MMgc/GCHeap.cpp void GCHeap::FreeBlock(HeapBlock *block)
FreeBlock         690 MMgc/ZCT.cpp   void ZCT::FreeBlock(RCObject** block)