id_core_define_method 5696 compile.c      	ADD_SEND (ret, line, id_core_define_method, INT2FIX(2));
id_core_define_method  123 id.c               REGISTER_SYMID(id_core_define_method, "core#define_method");
id_core_define_method 2686 vm.c               rb_define_method_id(klass, id_core_define_method, m_core_define_method, 2);