Allow undefined in TypedArray.prototype.sort(comparefn) (#6842)

According to the spec, TypedArray.prototype.sort(comparefn) should allow comparefn to be undefined.

In this case .sort(undefined) should be equivalent to .sort().
See https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort

Before it threw a TypeError.

Fix #6503

Author: ShortDevelopment

lib/Runtime/Library/TypedArray.cpp

@@ -1,6 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
-// Copyright (c) 2021 ChakraCore Project Contributors. All rights reserved.
+// Copyright (c) 2022 ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 // Implementation for typed arrays based on ArrayBuffer.
@@ -2263,7 +2263,7 @@ namespace Js
 
         RecyclableObject* compareFn = nullptr;
 
-        if (args.Info.Count > 1)
+        if (args.Info.Count > 1 && !JavascriptOperators::IsUndefined(args[1]))
         {
             if (!JavascriptConversion::IsCallable(args[1]))
             {

test/typedarray/rlexe.xml

@@ -435,4 +435,9 @@ Below test fails with difference in space. Investigate the cause and re-enable t
       <files>definitetypedarray.js</files>
     </default>
   </test>
+  <test>
+    <default>
+      <files>sort.js</files>
+    </default>
+  </test>
 </regress-exe>

test/typedarray/sort.js

@@ -0,0 +1,12 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) 2022 ChakraCore Project Contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
+const array = new Uint32Array([3, 1, 2]);
+
+// May not throw; See https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
+array.sort(undefined);
+
+print("pass");