diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug772328.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug772328.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+function f(x) {
+    function x() {}
+    arguments[0] = 42;
+    return x;
+}
+assertEq(f(0), 42);
+
+function g(x) {
+    function x() {}
+    assertEq(arguments[0], x);
+}
+g(0);
+
+var caught = false;
+try {
+    (function h(x) { function x() {} }).blah.baz;
+} catch (e) {
+    caught = true;
+}
+assertEq(caught, true);