diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug584499-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug584499-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+// |jit-test| error: TypeError
+var s = "12345";
+for(var i=0; i<7; i++) {
+    print(s[i].length);
+}
+