A few cosmetic changes.

Ix.NET/Source/System.Interactive.Async.Providers/AsyncEnumerableQuery.cs

@@ -14,7 +14,7 @@ namespace System.Linq
         /// <summary>
         /// Gets the enumerable sequence obtained from evaluating the expression tree.
         /// </summary>
-        internal abstract object Enumerable { get; } // TODO: non-generic interface?
+        internal abstract object Enumerable { get; }
 
         /// <summary>
         /// Gets the expression tree representing the asynchronous enumerable sequence.

Ix.NET/Source/System.Interactive.Async.Providers/AsyncEnumerableRewriter.cs

@@ -127,7 +127,7 @@ namespace System.Linq
             }
 
             //
-            // TODO: non-generic interface needed?
+            // NB: Add if we ever decide to add the non-generic interface.
             //
             //if (typeof(IAsyncEnumerable).IsAssignableFrom(type))
             //{

Ix.NET/Source/Tests/AssertEx.cs

@@ -1,4 +1,5 @@
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System;
 
 namespace Tests