diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug951213.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug951213.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+
+setObjectMetadataCallback(function(obj) {});
+function foo(x, y) {
+  this.g = x + y;
+}
+var a = 0;
+var b = { valueOf: function() Object.defineProperty(Object.prototype, 'g', {}) };
+var c = new foo(a, b);