diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testArrayNaNIndex.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testArrayNaNIndex.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+function testArrayNaNIndex()
+{
+    for (var j = 0; j < 4; ++j) { [this[NaN]]; }
+    for (var j = 0; j < 5; ++j) { if([1][-0]) { } }
+    return "ok";
+}
+assertEq(testArrayNaNIndex(), "ok");