diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug673788.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug673788.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+// |jit-test| error: ReferenceError
+p = Proxy.create({
+  has: function() {}
+})
+Object.prototype.__proto__ = p
+n = [];
+(function() {
+  var a = [];
+  if (b) t = a.s()
+})()