diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/arguments/args-sum.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/arguments/args-sum.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+actual = '';
+expected = '666,';
+
+function h() {
+  var ans = 0;
+  for (var i = 0; i < arguments.length; ++i) {
+    ans += arguments[i];
+  }
+  return ans;
+}
+
+var q = h(600, 60, 6);
+appendToActual(q);
+
+
+assertEq(actual, expected)