diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-596805-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-596805-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var f = function(){};
+for (var y in f);
+f.j = 0;
+Object.defineProperty(f, "k", ({configurable: true}));
+delete f.j;
+Object.defineProperty(f, "k", ({get: function() {}}));
+
+reportCompare(0, 0, "ok");