Just call search_method_protect [Bug #16669]

vm_method.c

@@ -936,13 +936,7 @@ search_method_protect(VALUE klass, ID id, VALUE *defined_class_ptr)
 MJIT_FUNC_EXPORTED const rb_method_entry_t *
 rb_method_entry(VALUE klass, ID id)
 {
-    const rb_method_entry_t *me = search_method(klass, id, NULL);
-    if (me && me->def && me->def->type != VM_METHOD_TYPE_UNDEF) {
-        return me;
-    }
-    else {
-        return NULL;
-    }
+    return search_method_protect(klass, id, NULL);
 }
 
 static inline const rb_callable_method_entry_t *