diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug674085.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug674085.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+function f(x) {
+    for (var i = 0; i < 50; i++) {};
+    [1][arguments[0]]++;
+    x = 1.2;
+}
+f(0);