diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-584648.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-584648.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+// |reftest| skip
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+// Contributors: Gary Kwong <gary@rumblingedge.com>
+//               Jason Orendorff <jorendorff@mozilla.com>
+
+// on a non-global object
+var x = {};
+x.watch("p", function () { evalcx(''); });
+x.p = 0;
+
+// on the global
+watch("e", (function () { evalcx(''); }));
+e = function () {};
+
+reportCompare(0, 0, "ok");