diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/extensions/regress-237461.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/extensions/regress-237461.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 237461;
+var summary = 'don\'t crash with nested function collides with var';
+var actual = 'Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+function g()
+{
+  var core = {};
+  core.js = {};
+  core.js.init = function()
+    {
+      var loader = null;
+       
+      function loader() {}
+    };
+  return core;
+}
+
+if (typeof Script == 'undefined')
+{
+  print('Test skipped. Script not defined.');
+}
+else
+{
+  var s = new Script(""+g.toString());
+  try
+  {
+    var frozen = s.freeze(); // crash.
+    printStatus("len:" + frozen.length);
+  }
+  catch(e)
+  {
+  }
+}
+actual = 'No Crash';
+
+reportCompare(expect, actual, summary);