FREE_ASSERT       288 gc/allchblk.c      FREE_ASSERT(GC_free_bytes[index] >= hhdr -> hb_sz);
FREE_ASSERT       351 gc/allchblk.c      FREE_ASSERT(GC_free_bytes[index] <= GC_large_free_bytes)
FREE_ASSERT       526 gc/allchblk.c        FREE_ASSERT(GC_free_bytes[index] > 0);