diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/optimize-globals-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/optimize-globals-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+
+function testLocalNames() {
+    var NaN = 4;
+    var undefined = 5;
+    var Infinity = 6;
+    return NaN + undefined + Infinity;
+}
+assertEq(testLocalNames(), 15);
+