diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/newTest.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/newTest.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+function MyConstructor(i)
+{
+  this.i = i;
+}
+MyConstructor.prototype.toString = function() {return this.i + ""};
+
+function newTest()
+{
+  var a = [];
+  for (var i = 0; i < 10; i++)
+    a[i] = new MyConstructor(i);
+  return a.join("");
+}
+assertEq(newTest(), "0123456789");