diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-566549.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-566549.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+// Contributors: Jesse Ruderman <jruderman@gmail.com>,
+//               Gary Kwong <gary@rumblingedge.com>,
+//               Jason Orendorff <jorendorff@mozilla.com>
+
+try {
+    evalcx('var p;', []);
+} catch (exc) {}
+
+try {
+    evalcx('');
+    Function("evalcx(\"var p\",[])")();
+} catch (exc) {}
+
+try {
+    evalcx('var p;');
+} catch (exc) {}
+
+reportCompare(0, 0, "ok");