diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/for-of/array-comprehension.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/for-of/array-comprehension.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,3 @@
+// for-of can be used in array comprehensions.
+
+assertEq([x*x for (x of [1, 2, 3])].join(), "1,4,9");