Better message location for 'super(...)' restriction error.

test/message/super-constructor.js

Index: test/message/super-constructor.js
diff --git a/test/mjsunit/regress/regress-416416.js b/test/message/super-constructor.js
similarity index 63%
copy from test/mjsunit/regress/regress-416416.js
copy to test/message/super-constructor.js
index 66e882e0fc348da422406c5ecf35ef454428455a..9c96d9bc34ada080b5a90e78fa9b8f967da5ca66 100644
--- a/test/mjsunit/regress/regress-416416.js
+++ b/test/message/super-constructor.js
@@ -1,14 +1,14 @@
 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+//
+// Flags: --harmony-classes
+'use strict';
 
-function foo() {
-  try {
-    String.prototype.length.x();
-  } catch (e) {
+class C {
+  constructor() {
+    super(this.x);
   }
 }
 
-foo();
-foo();
-foo();
+new C();