CELL lookup_method(CELL object, CELL methods); PRIMITIVE(lookup_method); CELL object_class(CELL object); PRIMITIVE(mega_cache_miss); PRIMITIVE(reset_dispatch_stats); PRIMITIVE(dispatch_stats); void jit_emit_class_lookup(jit *jit, F_FIXNUM index, CELL type); void jit_emit_mega_cache_lookup(jit *jit, CELL methods, F_FIXNUM index, CELL cache);