diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-541255-3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-541255-3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,13 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributors: Gary Kwong and Jason Orendorff
+ */
+
+function f(y) {
+    eval("let (z=2, w=y) { (function () { w.p = 7; })(); }");
+}
+var x = {};
+f(x);
+assertEq(x.p, 7);
+reportCompare(0, 0, "");