diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testStringResolve.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testStringResolve.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+function testStringResolve() {
+    var x = 0;
+    for each (let d in [new String('q'), new String('q'), new String('q')]) {
+        if (("" + (0 in d)) === "true")
+            x++;
+    }
+    return x;
+}
+assertEq(testStringResolve(), 3);