id_core_hash_merge_kwd 3025 compile.c      			    ADD_SEND(ret, line, id_core_hash_merge_kwd, nhash);
id_core_hash_merge_kwd  129 id.c               REGISTER_SYMID(id_core_hash_merge_kwd, "core#hash_merge_kwd");
id_core_hash_merge_kwd 2692 vm.c               rb_define_method_id(klass, id_core_hash_merge_kwd, m_core_hash_merge_kwd, -1);