diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug684943.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug684943.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+
+function foo(x) {
+  for (var i = 0; i < 100; i++) {
+    x.f === i;
+  }
+}
+foo({f:"three"});