diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-541455.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-541455.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributors: Gary Kwong and Jason Orendorff
+ */
+
+function f(x) { return eval('"mumble"; x + 42'); }
+
+var expect = true;
+var actual = ('' + f).indexOf("mumble") >= 0;
+
+reportCompare(expect, actual, "unknown directive in eval code wrongly dropped");