diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/globalOptimize-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/globalOptimize-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+
+x = 30;
+function foo() {
+  assertEq(x, 30);
+  delete x;
+  y = 20;
+  Object.defineProperty(this, 'x', {value:10});
+  assertEq(x, 10);
+}
+foo();