Add copyright notice to test case

test/switchStatement/aggressiveintoff.js

@@ -1,3 +1,8 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
 function opt() {
     for (let i = 0; i < 100; i++) {
         let j = i - 2;