GC_register_finalizer 1092 gc/dbg_mlc.c         GC_register_finalizer(base, 0, 0, &my_old_fn, &my_old_cd);
GC_register_finalizer 1094 gc/dbg_mlc.c         GC_register_finalizer(base, GC_debug_invoke_finalizer,
GC_register_finalizer  591 gc/include/gc.h 	GC_register_finalizer(p, f, d, of, od)
GC_register_finalizer  622 gc/include/gc.h GC_API void GC_register_finalizer