wmap_has_key     9508 gc.c           	rb_define_method(rb_cWeakMap, "include?", wmap_has_key, 1);
wmap_has_key     9509 gc.c           	rb_define_method(rb_cWeakMap, "member?", wmap_has_key, 1);
wmap_has_key     9510 gc.c           	rb_define_method(rb_cWeakMap, "key?", wmap_has_key, 1);