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

test/message/super-constructor-extra-statement.js

Index: test/message/super-constructor-extra-statement.js
diff --git a/test/mjsunit/unused-context-in-with.js b/test/message/super-constructor-extra-statement.js
similarity index 62%
copy from test/mjsunit/unused-context-in-with.js
copy to test/message/super-constructor-extra-statement.js
index 2973ca2e5a52960c6e56510539b36b36d8213b9d..a26381bf07471ad77526141a21385f58c6aa622b 100644
--- a/test/mjsunit/unused-context-in-with.js
+++ b/test/message/super-constructor-extra-statement.js
@@ -1,13 +1,15 @@
 // 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';
 
-var x = 1;
-function foo(object) {
-  with(object) {
-    x;
+class C {
+  constructor() {
+    var x;
+    super(x);
   }
-  return 100;
 }
 
-assertEquals(100,foo("str"));
+new C();