rb_objspace_internal_object_p 723 ext/objspace/objspace.c if (rb_objspace_internal_object_p(obj)) { rb_objspace_internal_object_p 836 ext/objspace/objspace.c if (rb_objspace_internal_object_p(obj)) { rb_objspace_internal_object_p 100 gc.h int rb_objspace_internal_object_p(VALUE obj);