Switch to new toggle block comment command handler.

src/EditorFeatures/CSharp/CommentSelection/CSharpToggleBlockCommentCommandHandler.cs

@@ -21,8 +21,7 @@ namespace Microsoft.CodeAnalysis.Editor.CSharp.CommentSelection
 {
     [Export(typeof(VSCommanding.ICommandHandler))]
     [ContentType(ContentTypeNames.CSharpContentType)]
-    // TODO - Change to toggle handler.
-    [Name(PredefinedCommandHandlerNames.CommentSelection)]
+    [Name(PredefinedCommandHandlerNames.ToggleBlockComment)]
     internal class CSharpToggleBlockCommentCommandHandler :
         ToggleBlockCommentCommandHandler
     {

src/EditorFeatures/Core/Extensibility/Commands/PredefinedCommandHandlerNames.cs

@@ -141,6 +141,12 @@ internal static class PredefinedCommandHandlerNames
         /// </summary>
         public const string SignatureHelpAfterCompletion = "Signature Help After Completion Command Handler";
 
+        /// <summary>
+        /// Command handler name for Toggle Block Comments.
+        /// </summary>
+        /// <remarks></remarks>
+        public const string ToggleBlockComment = "Toggle Block Comment Command Handler";
+
         /// <summary>
         /// Command handler name for Paste Content in Interactive Format. 
         /// </summary>

src/EditorFeatures/Core/Implementation/CommentSelection/AbstractToggleBlockCommentBase.cs

@@ -25,7 +25,7 @@ namespace Microsoft.CodeAnalysis.Editor.Implementation.CommentSelection
     internal abstract class AbstractToggleBlockCommentBase :
         // Value tuple to represent that there is no distinct command to be passed in.
         AbstractCommentSelectionBase<ValueTuple>,
-        VSCommanding.ICommandHandler<CommentSelectionCommandArgs>
+        VSCommanding.ICommandHandler<ToggleBlockCommentCommandArgs>
     {
         private static readonly CommentSelectionResult s_emptyCommentSelectionResult =
             new CommentSelectionResult(new List<TextChange>(), new List<CommentTrackingSpan>(), Operation.Uncomment);
@@ -47,14 +47,12 @@ internal abstract class AbstractToggleBlockCommentBase :
         protected abstract Task<ImmutableArray<TextSpan>> GetBlockCommentsInDocument(Document document, ITextSnapshot snapshot,
             CommentSelectionInfo commentInfo, CancellationToken cancellationToken);
 
-        // TODO - Change to toggle handler.
-        public VSCommanding.CommandState GetCommandState(CommentSelectionCommandArgs args)
+        public VSCommanding.CommandState GetCommandState(ToggleBlockCommentCommandArgs args)
         {
             return GetCommandState(args.SubjectBuffer);
         }
 
-        // TODO - Change to toggle handler.
-        public bool ExecuteCommand(CommentSelectionCommandArgs args, CommandExecutionContext context)
+        public bool ExecuteCommand(ToggleBlockCommentCommandArgs args, CommandExecutionContext context)
         {
             return ExecuteCommand(args.TextView, args.SubjectBuffer, ValueTuple.Create(), context);
         }

src/EditorFeatures/Core/Implementation/CommentSelection/ToggleBlockCommentCommandHandler.cs

@@ -20,8 +20,7 @@ namespace Microsoft.CodeAnalysis.Editor.Implementation.CommentSelection
 {
     [Export(typeof(VSCommanding.ICommandHandler))]
     [ContentType(ContentTypeNames.RoslynContentType)]
-    // TODO - Change to toggle handler.
-    [Name(PredefinedCommandHandlerNames.CommentSelection)]
+    [Name(PredefinedCommandHandlerNames.ToggleBlockComment)]
     internal class ToggleBlockCommentCommandHandler : AbstractToggleBlockCommentBase
     {
         [ImportingConstructor]