diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug669706.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug669706.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+function printStatus(msg) {
+    msg.toString()
+    lines = msg
+    for (var i = 0; i < lines; i++) i
+}
+var summary = new Float32Array;
+try {
+    printStatus(summary)
+    x = {
+    }
+    toString.__proto__ = x
+} catch (e) {}
+var summary = 6;
+printStatus(summary)