Add unit test

Author: boingoing

test/Basics/bug_os17542375.js

@@ -0,0 +1,24 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
+// With pageheap:2 we should not hit an AV
+
+function foo() {
+   var r = {};
+   var b = {};
+   var a = {};
+   a.$ = r;
+
+   function foo1() {
+   }
+   function foo2() {
+   }
+    return r.noConflict = function(b) {
+        return a.$ === r && (a.$ = Wb), b && a.jQuery === r && (a.jQuery = Vb), r
+    }, b || (a.jQuery = a.$ = r), r
+}
+
+foo();
+console.log('pass');

test/Basics/rlexe.xml

@@ -414,4 +414,11 @@
       <tags>exclude_test,exclude_jshost,exclude_dynapogo</tags>
     </default>
   </test>
+  <test>
+    <default>
+      <files>bug_os17542375.js</files>
+      <compile-flags>-UseParserStateCache -ParserStateCache -Force:DeferParse -pageheap:2</compile-flags>
+      <tags>exclude_test,exclude_jshost</tags>
+    </default>
+  </test>
 </regress-exe>