diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug656914.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug656914.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+try {
+  new MyObject;
+} catch (e) {}
+
+function MyObject() {
+  return;
+  return this;
+}
+
+function Foo(x) {
+  if (x)
+    this.f = x;
+}
+var q = new Foo(false);
+for (a in q) { assertEq(true, false); }
+
+function Bar(x, y) {
+  if (!x)
+    return;
+  this.f = y;
+}
+var q2 = new Bar(false, true);
+for (b in q2) { assertEq(true, false); }