diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/Regress/regress-310607.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/Regress/regress-310607.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* -*- 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 = 310607;
+var summary = 'Do not crash iterating over Object.prototype';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var f = new Foo();
+f.go("bar");
+
+function Foo() {
+  this.go = function(prototype) {
+    printStatus("Start");
+    for(var i in Object.prototype) {
+      printStatus("Here");
+      eval("5+4");
+    }
+    printStatus("End");
+  };
+}
+ 
+reportCompare(expect, actual, summary);