1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-474771.js b/js/src/tests/non262/regress/regress-474771.js
new file mode 100644
index 0000000000..4b3985edad
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-474771.js
@@ -0,0 +1,42 @@
+// |reftest| skip-if(Android)
+/* -*- 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 = 474771;
+var summary = 'TM: do not halt execution with gczeal, prototype mangling, for..in';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = 'PASS';
+
+  if (typeof gczeal == 'function')
+  {
+    gczeal(2);
+  }
+
+  Object.prototype.q = 3;
+  for (let x of [6, 7]) { } print(actual = "PASS");
+ 
+
+  delete Object.prototype.q;
+
+  if (typeof gczeal == 'function')
+  {
+    gczeal(0);
+  }
+
+  reportCompare(expect, actual, summary);
+}