ins_methods_push 1119 class.c            return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_UNDEF); /* everything but private */
ins_methods_push 1125 class.c            return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PROTECTED);
ins_methods_push 1131 class.c            return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PRIVATE);
ins_methods_push 1137 class.c            return ins_methods_push((ID)name, (rb_method_visibility_t)type, (VALUE)ary, METHOD_VISI_PUBLIC);