diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-617405-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-617405-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributors: Christian Holler <decoder@own-hero.net> and Jason Orendorff
+ */
+
+function C(){}
+C.prototype = 1;
+try {
+    Object.defineProperty(C, "prototype", {get: function() { throw 0; }});
+    actual = "no exception";
+} catch (exc) {
+    actual = exc.name;
+}
+new C; // don't assert
+assertEq(actual, "TypeError");
+reportCompare(0, 0, "ok");