diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug616508.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug616508.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+// |jit-test| error: ReferenceError
+// vim: set ts=8 sts=4 et sw=4 tw=99:
+
+// Note: modified from original test, which used Uint32Array in place of Array,
+// because the behavior has changed in a way that this will throw a TypeError
+// before it gets to testing what used to crash. I have no idea whether this
+// would actually crash the original version it was written for.
+try {
+    (function () {
+        __proto__ = Array()
+    }())
+} catch (e) {}(function () {
+    length, ([eval()] ? x : 7)
+})()