diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_7/iterable/regress-341510.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_7/iterable/regress-341510.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 = 341510;
+var summary = 'Iterators: crash in close handler with assignment to ' +
+  'nonexistent name';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+function gen(i) {
+  try {
+    yield i;
+  } finally {
+    name_that_does_not_exist_in_the_scope_chain = 1;
+  }
+}
+
+var iter = gen(1);
+iter.next();
+iter = null;
+gc();
+
+reportCompare(expect, actual, summary);