diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-593256.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-593256.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,21 @@
+/* -*- 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/
+ */
+
+eval("\
+  (function(){for(d in[0,Number]) {\
+    this.__defineGetter__(\"\",function(){}),\
+    [(this.__defineGetter__(\"x\",Math.pow))]\
+  }})\
+")()
+delete gc
+eval("\
+  (function() {\
+    for(e in this.__defineSetter__(\"x\",function(){})){}\
+  })\
+")()
+delete gc
+
+reportCompare(true, true, "don't crash");