diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-596805-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-596805-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,27 @@
+/* -*- 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/
+ */
+
+for each(let c in [0, 0, 0, 0, 0]) {
+  try { (function() {
+      this.c = this;
+      this.e = arguments;
+      Object.defineProperty(this, "d", {
+        get: Math.pow,
+        configurable: true
+      });
+      delete this.e;
+      delete this.c;
+      Object.defineProperty(this, "d", {
+        writable: true
+      });
+      if (Math.tan( - 1)) {
+        Object.defineProperty(this, {});
+      }
+    } (c));
+  } catch(e) {}
+}
+
+reportCompare(0, 0, "ok");