diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/recompile/bug640608.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/recompile/bug640608.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+try {
+{
+    function x() {}
+}
+o = (0).__proto__;
+function f(o) {
+    o._("", function() {})
+}
+f(o)
+} catch (e) {}