diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/proxy/testDirectProxyConstruct3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/proxy/testDirectProxyConstruct3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Return the trap result
+var proxy = (new Proxy(function (x, y) {
+    this.foo = x + y;
+}, {
+    construct: function (target, args) {
+        return {
+            foo: args[0] * args[1]
+        };
+    }
+}));
+var obj1 = new proxy(2, 3);
+assertEq(obj1.foo, 6);
+obj1.bar = proxy;
+var obj2 = new obj1.bar(2, 3);
+assertEq(obj2.foo, 6);