diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug462388.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug462388.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+//test no multitrees assert
+function testBug462388() {
+    var c = 0, v; for each (let x in ["",v,v,v]) { for (c=0;c<4;++c) { } }
+    return true;
+}
+assertEq(testBug462388(), true);