Auto generate CSharp syntax tree nodes (#2550)

* Auto generate CSharp syntax tree nodes
- Auto generated syntax nodes, visitors and factories
- Renamed RazorComment to RazorCommentLiteral to avoid a conflict
- Modified the Visit() contract
- Added new SyntaxKinds
- Regenerated baselines

src/Microsoft.AspNetCore.Razor.Language/Legacy/CSharpLanguageCharacteristics.cs

@@ -136,7 +136,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 case KnownTokenType.CommentStar:
                     return SyntaxKind.RazorCommentStar;
                 case KnownTokenType.CommentBody:
-                    return SyntaxKind.RazorComment;
+                    return SyntaxKind.RazorCommentLiteral;
                 default:
                     return SyntaxKind.Unknown;
             }

src/Microsoft.AspNetCore.Razor.Language/Legacy/CSharpTokenizer.cs

@@ -133,7 +133,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
 
         private new CSharpTokenizerState? CurrentState => (CSharpTokenizerState?)base.CurrentState;
 
-        public override SyntaxKind RazorCommentKind => SyntaxKind.RazorComment;
+        public override SyntaxKind RazorCommentKind => SyntaxKind.RazorCommentLiteral;
 
         public override SyntaxKind RazorCommentTransitionKind => SyntaxKind.RazorCommentTransition;
 

src/Microsoft.AspNetCore.Razor.Language/Legacy/DirectiveCSharpTokenizer.cs

@@ -54,7 +54,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
             return kind != SyntaxKind.Whitespace &&
                 kind != SyntaxKind.NewLine &&
                 kind != SyntaxKind.CSharpComment &&
-                kind != SyntaxKind.RazorComment &&
+                kind != SyntaxKind.RazorCommentLiteral &&
                 kind != SyntaxKind.RazorCommentStar &&
                 kind != SyntaxKind.RazorCommentTransition &&
                 kind != SyntaxKind.Transition;

src/Microsoft.AspNetCore.Razor.Language/Legacy/DirectiveHtmlTokenizer.cs

@@ -48,7 +48,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
         {
             return kind != SyntaxKind.Whitespace &&
                 kind != SyntaxKind.NewLine &&
-                kind != SyntaxKind.RazorComment &&
+                kind != SyntaxKind.RazorCommentLiteral &&
                 kind != SyntaxKind.RazorCommentStar &&
                 kind != SyntaxKind.RazorCommentTransition &&
                 kind != SyntaxKind.Transition;

src/Microsoft.AspNetCore.Razor.Language/Legacy/HtmlLanguageCharacteristics.cs

@@ -56,7 +56,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                     return "@";
                 case SyntaxKind.Colon:
                     return ":";
-                case SyntaxKind.RazorComment:
+                case SyntaxKind.RazorCommentLiteral:
                     return Resources.HtmlToken_RazorComment;
                 case SyntaxKind.RazorCommentStar:
                     return "*";
@@ -104,7 +104,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 case KnownTokenType.CommentStar:
                     return SyntaxKind.RazorCommentStar;
                 case KnownTokenType.CommentBody:
-                    return SyntaxKind.RazorComment;
+                    return SyntaxKind.RazorCommentLiteral;
                 case KnownTokenType.Identifier:
                     return SyntaxKind.HtmlTextLiteral;
                 case KnownTokenType.Keyword:

src/Microsoft.AspNetCore.Razor.Language/Legacy/HtmlTokenizer.cs

@@ -24,7 +24,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
 
         public override SyntaxKind RazorCommentKind
         {
-            get { return SyntaxKind.RazorComment; }
+            get { return SyntaxKind.RazorCommentLiteral; }
         }
 
         public override SyntaxKind RazorCommentTransitionKind

src/Microsoft.AspNetCore.Razor.Language/Syntax/Generated/Syntax.xml.Main.Generated.cs

@@ -0,0 +1,375 @@
+// <auto-generated />
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+
+
+namespace Microsoft.AspNetCore.Razor.Language.Syntax
+{
+  internal partial class SyntaxVisitor<TResult>
+  {
+    /// <summary>Called when the visitor visits a RazorCommentBlockSyntax node.</summary>
+    public virtual TResult VisitRazorCommentBlock(RazorCommentBlockSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a HtmlTextSyntax node.</summary>
+    public virtual TResult VisitHtmlText(HtmlTextSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpTransitionSyntax node.</summary>
+    public virtual TResult VisitCSharpTransition(CSharpTransitionSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpMetaCodeSyntax node.</summary>
+    public virtual TResult VisitCSharpMetaCode(CSharpMetaCodeSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpCodeLiteralSyntax node.</summary>
+    public virtual TResult VisitCSharpCodeLiteral(CSharpCodeLiteralSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpCodeBlockSyntax node.</summary>
+    public virtual TResult VisitCSharpCodeBlock(CSharpCodeBlockSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpStatement node.</summary>
+    public virtual TResult VisitCSharpStatement(CSharpStatement node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpStatementBodySyntax node.</summary>
+    public virtual TResult VisitCSharpStatementBody(CSharpStatementBodySyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpExpression node.</summary>
+    public virtual TResult VisitCSharpExpression(CSharpExpression node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpExpressionBodySyntax node.</summary>
+    public virtual TResult VisitCSharpExpressionBody(CSharpExpressionBodySyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpDirectiveSyntax node.</summary>
+    public virtual TResult VisitCSharpDirective(CSharpDirectiveSyntax node)
+    {
+      return DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpDirectiveBodySyntax node.</summary>
+    public virtual TResult VisitCSharpDirectiveBody(CSharpDirectiveBodySyntax node)
+    {
+      return DefaultVisit(node);
+    }
+  }
+
+  internal partial class SyntaxVisitor
+  {
+    /// <summary>Called when the visitor visits a RazorCommentBlockSyntax node.</summary>
+    public virtual void VisitRazorCommentBlock(RazorCommentBlockSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a HtmlTextSyntax node.</summary>
+    public virtual void VisitHtmlText(HtmlTextSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpTransitionSyntax node.</summary>
+    public virtual void VisitCSharpTransition(CSharpTransitionSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpMetaCodeSyntax node.</summary>
+    public virtual void VisitCSharpMetaCode(CSharpMetaCodeSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpCodeLiteralSyntax node.</summary>
+    public virtual void VisitCSharpCodeLiteral(CSharpCodeLiteralSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpCodeBlockSyntax node.</summary>
+    public virtual void VisitCSharpCodeBlock(CSharpCodeBlockSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpStatement node.</summary>
+    public virtual void VisitCSharpStatement(CSharpStatement node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpStatementBodySyntax node.</summary>
+    public virtual void VisitCSharpStatementBody(CSharpStatementBodySyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpExpression node.</summary>
+    public virtual void VisitCSharpExpression(CSharpExpression node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpExpressionBodySyntax node.</summary>
+    public virtual void VisitCSharpExpressionBody(CSharpExpressionBodySyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpDirectiveSyntax node.</summary>
+    public virtual void VisitCSharpDirective(CSharpDirectiveSyntax node)
+    {
+      DefaultVisit(node);
+    }
+
+    /// <summary>Called when the visitor visits a CSharpDirectiveBodySyntax node.</summary>
+    public virtual void VisitCSharpDirectiveBody(CSharpDirectiveBodySyntax node)
+    {
+      DefaultVisit(node);
+    }
+  }
+
+  internal static partial class SyntaxFactory
+  {
+    /// <summary>Creates a new RazorCommentBlockSyntax instance.</summary>
+    public static RazorCommentBlockSyntax RazorCommentBlock(SyntaxToken startCommentTransition, SyntaxToken startCommentStar, SyntaxToken comment, SyntaxToken endCommentStar, SyntaxToken endCommentTransition)
+    {
+      switch (startCommentTransition.Kind)
+      {
+        case SyntaxKind.RazorCommentTransition:
+          break;
+        default:
+          throw new ArgumentException("startCommentTransition");
+      }
+      switch (startCommentStar.Kind)
+      {
+        case SyntaxKind.RazorCommentStar:
+          break;
+        default:
+          throw new ArgumentException("startCommentStar");
+      }
+      switch (comment.Kind)
+      {
+        case SyntaxKind.RazorComment:
+        case SyntaxKind.Unknown:
+          break;
+        default:
+          throw new ArgumentException("comment");
+      }
+      switch (endCommentStar.Kind)
+      {
+        case SyntaxKind.RazorCommentStar:
+          break;
+        default:
+          throw new ArgumentException("endCommentStar");
+      }
+      switch (endCommentTransition.Kind)
+      {
+        case SyntaxKind.RazorCommentTransition:
+          break;
+        default:
+          throw new ArgumentException("endCommentTransition");
+      }
+      return (RazorCommentBlockSyntax)InternalSyntax.SyntaxFactory.RazorCommentBlock((Syntax.InternalSyntax.SyntaxToken)startCommentTransition.Green, (Syntax.InternalSyntax.SyntaxToken)startCommentStar.Green, (Syntax.InternalSyntax.SyntaxToken)comment.Green, (Syntax.InternalSyntax.SyntaxToken)endCommentStar.Green, (Syntax.InternalSyntax.SyntaxToken)endCommentTransition.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new RazorCommentBlockSyntax instance.</summary>
+    public static RazorCommentBlockSyntax RazorCommentBlock()
+    {
+      return SyntaxFactory.RazorCommentBlock(SyntaxFactory.Token(SyntaxKind.RazorCommentTransition), SyntaxFactory.Token(SyntaxKind.RazorCommentStar), default(SyntaxToken), SyntaxFactory.Token(SyntaxKind.RazorCommentStar), SyntaxFactory.Token(SyntaxKind.RazorCommentTransition));
+    }
+
+    /// <summary>Creates a new HtmlTextSyntax instance.</summary>
+    public static HtmlTextSyntax HtmlText(SyntaxList<SyntaxToken> textTokens)
+    {
+      return (HtmlTextSyntax)InternalSyntax.SyntaxFactory.HtmlText(textTokens.Node.ToGreenList<InternalSyntax.SyntaxToken>()).CreateRed();
+    }
+
+    /// <summary>Creates a new HtmlTextSyntax instance.</summary>
+    public static HtmlTextSyntax HtmlText()
+    {
+      return SyntaxFactory.HtmlText(default(SyntaxList<SyntaxToken>));
+    }
+
+    /// <summary>Creates a new CSharpTransitionSyntax instance.</summary>
+    public static CSharpTransitionSyntax CSharpTransition(SyntaxToken transition)
+    {
+      switch (transition.Kind)
+      {
+        case SyntaxKind.Transition:
+          break;
+        default:
+          throw new ArgumentException("transition");
+      }
+      return (CSharpTransitionSyntax)InternalSyntax.SyntaxFactory.CSharpTransition((Syntax.InternalSyntax.SyntaxToken)transition.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpTransitionSyntax instance.</summary>
+    public static CSharpTransitionSyntax CSharpTransition()
+    {
+      return SyntaxFactory.CSharpTransition(SyntaxFactory.Token(SyntaxKind.Transition));
+    }
+
+    /// <summary>Creates a new CSharpMetaCodeSyntax instance.</summary>
+    public static CSharpMetaCodeSyntax CSharpMetaCode(SyntaxList<SyntaxToken> metaCode)
+    {
+      return (CSharpMetaCodeSyntax)InternalSyntax.SyntaxFactory.CSharpMetaCode(metaCode.Node.ToGreenList<InternalSyntax.SyntaxToken>()).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpMetaCodeSyntax instance.</summary>
+    public static CSharpMetaCodeSyntax CSharpMetaCode()
+    {
+      return SyntaxFactory.CSharpMetaCode(default(SyntaxList<SyntaxToken>));
+    }
+
+    /// <summary>Creates a new CSharpCodeLiteralSyntax instance.</summary>
+    public static CSharpCodeLiteralSyntax CSharpCodeLiteral(SyntaxList<SyntaxToken> cSharpTokens)
+    {
+      return (CSharpCodeLiteralSyntax)InternalSyntax.SyntaxFactory.CSharpCodeLiteral(cSharpTokens.Node.ToGreenList<InternalSyntax.SyntaxToken>()).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpCodeLiteralSyntax instance.</summary>
+    public static CSharpCodeLiteralSyntax CSharpCodeLiteral()
+    {
+      return SyntaxFactory.CSharpCodeLiteral(default(SyntaxList<SyntaxToken>));
+    }
+
+    /// <summary>Creates a new CSharpCodeBlockSyntax instance.</summary>
+    public static CSharpCodeBlockSyntax CSharpCodeBlock(SyntaxList<RazorSyntaxNode> children)
+    {
+      return (CSharpCodeBlockSyntax)InternalSyntax.SyntaxFactory.CSharpCodeBlock(children.Node.ToGreenList<InternalSyntax.RazorSyntaxNode>()).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpCodeBlockSyntax instance.</summary>
+    public static CSharpCodeBlockSyntax CSharpCodeBlock()
+    {
+      return SyntaxFactory.CSharpCodeBlock(default(SyntaxList<RazorSyntaxNode>));
+    }
+
+    /// <summary>Creates a new CSharpStatement instance.</summary>
+    public static CSharpStatement CSharpStatement(CSharpTransitionSyntax transition, CSharpSyntaxNode body)
+    {
+      if (transition == null)
+        throw new ArgumentNullException(nameof(transition));
+      if (body == null)
+        throw new ArgumentNullException(nameof(body));
+      return (CSharpStatement)InternalSyntax.SyntaxFactory.CSharpStatement(transition == null ? null : (InternalSyntax.CSharpTransitionSyntax)transition.Green, body == null ? null : (InternalSyntax.CSharpSyntaxNode)body.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpStatement instance.</summary>
+    public static CSharpStatement CSharpStatement(CSharpSyntaxNode body)
+    {
+      return SyntaxFactory.CSharpStatement(SyntaxFactory.CSharpTransition(), body);
+    }
+
+    /// <summary>Creates a new CSharpStatementBodySyntax instance.</summary>
+    public static CSharpStatementBodySyntax CSharpStatementBody(CSharpMetaCodeSyntax openBrace, CSharpCodeBlockSyntax cSharpCode, CSharpMetaCodeSyntax closeBrace)
+    {
+      if (openBrace == null)
+        throw new ArgumentNullException(nameof(openBrace));
+      if (cSharpCode == null)
+        throw new ArgumentNullException(nameof(cSharpCode));
+      if (closeBrace == null)
+        throw new ArgumentNullException(nameof(closeBrace));
+      return (CSharpStatementBodySyntax)InternalSyntax.SyntaxFactory.CSharpStatementBody(openBrace == null ? null : (InternalSyntax.CSharpMetaCodeSyntax)openBrace.Green, cSharpCode == null ? null : (InternalSyntax.CSharpCodeBlockSyntax)cSharpCode.Green, closeBrace == null ? null : (InternalSyntax.CSharpMetaCodeSyntax)closeBrace.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpStatementBodySyntax instance.</summary>
+    public static CSharpStatementBodySyntax CSharpStatementBody()
+    {
+      return SyntaxFactory.CSharpStatementBody(SyntaxFactory.CSharpMetaCode(), SyntaxFactory.CSharpCodeBlock(), SyntaxFactory.CSharpMetaCode());
+    }
+
+    /// <summary>Creates a new CSharpExpression instance.</summary>
+    public static CSharpExpression CSharpExpression(CSharpTransitionSyntax transition, CSharpSyntaxNode body)
+    {
+      if (transition == null)
+        throw new ArgumentNullException(nameof(transition));
+      if (body == null)
+        throw new ArgumentNullException(nameof(body));
+      return (CSharpExpression)InternalSyntax.SyntaxFactory.CSharpExpression(transition == null ? null : (InternalSyntax.CSharpTransitionSyntax)transition.Green, body == null ? null : (InternalSyntax.CSharpSyntaxNode)body.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpExpression instance.</summary>
+    public static CSharpExpression CSharpExpression(CSharpSyntaxNode body)
+    {
+      return SyntaxFactory.CSharpExpression(SyntaxFactory.CSharpTransition(), body);
+    }
+
+    /// <summary>Creates a new CSharpExpressionBodySyntax instance.</summary>
+    public static CSharpExpressionBodySyntax CSharpExpressionBody(CSharpMetaCodeSyntax openParen, CSharpCodeBlockSyntax cSharpCode, CSharpMetaCodeSyntax closeParen)
+    {
+      if (cSharpCode == null)
+        throw new ArgumentNullException(nameof(cSharpCode));
+      return (CSharpExpressionBodySyntax)InternalSyntax.SyntaxFactory.CSharpExpressionBody(openParen == null ? null : (InternalSyntax.CSharpMetaCodeSyntax)openParen.Green, cSharpCode == null ? null : (InternalSyntax.CSharpCodeBlockSyntax)cSharpCode.Green, closeParen == null ? null : (InternalSyntax.CSharpMetaCodeSyntax)closeParen.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpExpressionBodySyntax instance.</summary>
+    public static CSharpExpressionBodySyntax CSharpExpressionBody()
+    {
+      return SyntaxFactory.CSharpExpressionBody(default(CSharpMetaCodeSyntax), SyntaxFactory.CSharpCodeBlock(), default(CSharpMetaCodeSyntax));
+    }
+
+    /// <summary>Creates a new CSharpDirectiveSyntax instance.</summary>
+    public static CSharpDirectiveSyntax CSharpDirective(CSharpTransitionSyntax transition, CSharpSyntaxNode body)
+    {
+      if (transition == null)
+        throw new ArgumentNullException(nameof(transition));
+      if (body == null)
+        throw new ArgumentNullException(nameof(body));
+      return (CSharpDirectiveSyntax)InternalSyntax.SyntaxFactory.CSharpDirective(transition == null ? null : (InternalSyntax.CSharpTransitionSyntax)transition.Green, body == null ? null : (InternalSyntax.CSharpSyntaxNode)body.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpDirectiveSyntax instance.</summary>
+    public static CSharpDirectiveSyntax CSharpDirective(CSharpSyntaxNode body)
+    {
+      return SyntaxFactory.CSharpDirective(SyntaxFactory.CSharpTransition(), body);
+    }
+
+    /// <summary>Creates a new CSharpDirectiveBodySyntax instance.</summary>
+    public static CSharpDirectiveBodySyntax CSharpDirectiveBody(CSharpMetaCodeSyntax keyword, CSharpCodeBlockSyntax cSharpCode)
+    {
+      if (keyword == null)
+        throw new ArgumentNullException(nameof(keyword));
+      if (cSharpCode == null)
+        throw new ArgumentNullException(nameof(cSharpCode));
+      return (CSharpDirectiveBodySyntax)InternalSyntax.SyntaxFactory.CSharpDirectiveBody(keyword == null ? null : (InternalSyntax.CSharpMetaCodeSyntax)keyword.Green, cSharpCode == null ? null : (InternalSyntax.CSharpCodeBlockSyntax)cSharpCode.Green).CreateRed();
+    }
+
+    /// <summary>Creates a new CSharpDirectiveBodySyntax instance.</summary>
+    public static CSharpDirectiveBodySyntax CSharpDirectiveBody()
+    {
+      return SyntaxFactory.CSharpDirectiveBody(SyntaxFactory.CSharpMetaCode(), SyntaxFactory.CSharpCodeBlock());
+    }
+  }
+}

src/Microsoft.AspNetCore.Razor.Language/Syntax/GreenNode.cs

@@ -481,10 +481,9 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
         internal abstract SyntaxNode CreateRed(SyntaxNode parent, int position);
         #endregion
 
-        internal virtual GreenNode Accept(InternalSyntax.SyntaxVisitor visitor)
+        public abstract TResult Accept<TResult>(InternalSyntax.SyntaxVisitor<TResult> visitor);
-        {
+
-            return visitor.Visit(this);
+        public abstract void Accept(InternalSyntax.SyntaxVisitor visitor);
-        }
 
         #region StaticMethods
 

src/Microsoft.AspNetCore.Razor.Language/Syntax/GreenNodeExtensions.cs

@@ -0,0 +1,56 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+
+namespace Microsoft.AspNetCore.Razor.Language.Syntax
+{
+    internal static class GreenNodeExtensions
+    {
+        internal static InternalSyntax.SyntaxList<T> ToGreenList<T>(this SyntaxNode node) where T : GreenNode
+        {
+            return node != null ?
+                ToGreenList<T>(node.Green) :
+                default(InternalSyntax.SyntaxList<T>);
+        }
+
+        internal static InternalSyntax.SyntaxList<T> ToGreenList<T>(this GreenNode node) where T : GreenNode
+        {
+            return new InternalSyntax.SyntaxList<T>(node);
+        }
+
+        public static TNode WithAnnotationsGreen<TNode>(this TNode node, IEnumerable<SyntaxAnnotation> annotations) where TNode : GreenNode
+        {
+            var newAnnotations = new List<SyntaxAnnotation>();
+            foreach (var candidate in annotations)
+            {
+                if (!newAnnotations.Contains(candidate))
+                {
+                    newAnnotations.Add(candidate);
+                }
+            }
+
+            if (newAnnotations.Count == 0)
+            {
+                var existingAnnotations = node.GetAnnotations();
+                if (existingAnnotations == null || existingAnnotations.Length == 0)
+                {
+                    return node;
+                }
+                else
+                {
+                    return (TNode)node.SetAnnotations(null);
+                }
+            }
+            else
+            {
+                return (TNode)node.SetAnnotations(newAnnotations.ToArray());
+            }
+        }
+
+        public static TNode WithDiagnosticsGreen<TNode>(this TNode node, RazorDiagnostic[] diagnostics) where TNode : GreenNode
+        {
+            return (TNode)node.SetDiagnostics(diagnostics);
+        }
+    }
+}

src/Microsoft.AspNetCore.Razor.Language/Syntax/HtmlNodeSyntax.cs

@@ -1,20 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-namespace Microsoft.AspNetCore.Razor.Language.Syntax
-{
-    internal abstract class HtmlNodeSyntax : SyntaxNode
-    {
-        internal HtmlNodeSyntax(GreenNode green, SyntaxNode parent, int position)
-            : base(green, parent, position)
-        {
-        }
-
-        internal new InternalSyntax.HtmlNodeSyntax Green => (InternalSyntax.HtmlNodeSyntax)base.Green;
-
-        internal override SyntaxNode Accept(SyntaxVisitor visitor)
-        {
-            return visitor.VisitHtmlNode(this);
-        }
-    }
-}

src/Microsoft.AspNetCore.Razor.Language/Syntax/HtmlTextSyntax.cs

@@ -1,42 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-namespace Microsoft.AspNetCore.Razor.Language.Syntax
-{
-    internal class HtmlTextSyntax : HtmlNodeSyntax
-    {
-        private SyntaxNode _textTokens;
-
-        internal HtmlTextSyntax(GreenNode green, SyntaxNode parent, int position)
-            : base(green, parent, position)
-        {
-        }
-
-        public SyntaxList<SyntaxNode> TextTokens => new SyntaxList<SyntaxNode>(GetRed(ref _textTokens, 0));
-
-        public string Value => TextTokens[0]?.ToFullString() ?? string.Empty;
-
-        internal override SyntaxNode Accept(SyntaxVisitor visitor)
-        {
-            return visitor.VisitHtmlText(this);
-        }
-
-        internal override SyntaxNode GetCachedSlot(int index)
-        {
-            switch (index)
-            {
-                case 0: return _textTokens;
-                default: return null;
-            }
-        }
-
-        internal override SyntaxNode GetNodeSlot(int slot)
-        {
-            switch (slot)
-            {
-                case 0: return GetRed(ref _textTokens, 0);
-                default: return null;
-            }
-        }
-    }
-}

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/HtmlNodeSyntax.cs

@@ -1,28 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
-{
-    internal abstract class HtmlNodeSyntax : GreenNode
-    {
-        protected HtmlNodeSyntax(SyntaxKind kind)
-            : base(kind)
-        {
-        }
-
-        protected HtmlNodeSyntax(SyntaxKind kind, int fullWidth)
-            : base(kind, fullWidth)
-        {
-        }
-
-        protected HtmlNodeSyntax(SyntaxKind kind, RazorDiagnostic[] diagnostics, SyntaxAnnotation[] annotations)
-            : base(kind, diagnostics, annotations)
-        {
-        }
-
-        internal override GreenNode Accept(SyntaxVisitor visitor)
-        {
-            return visitor.VisitHtmlNode(this);
-        }
-    }
-}

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/HtmlTextSyntax.cs

@@ -1,59 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
-{
-    internal class HtmlTextSyntax : HtmlNodeSyntax
-    {
-        private readonly GreenNode _value;
-
-        internal HtmlTextSyntax(GreenNode value) : base(SyntaxKind.HtmlText)
-        {
-            SlotCount = 1;
-            _value = value;
-            AdjustFlagsAndWidth(value);
-        }
-
-        internal HtmlTextSyntax(GreenNode value, RazorDiagnostic[] diagnostics, SyntaxAnnotation[] annotations)
-            : base(SyntaxKind.HtmlText, diagnostics, annotations)
-        {
-            SlotCount = 1;
-            _value = value;
-            AdjustFlagsAndWidth(value);
-        }
-
-        internal SyntaxList<GreenNode> TextTokens => new SyntaxList<GreenNode>(_value);
-
-        internal override GreenNode GetSlot(int index)
-        {
-            switch (index)
-            {
-                case 0: return _value;
-            }
-
-            throw new InvalidOperationException();
-        }
-
-        internal override GreenNode Accept(SyntaxVisitor visitor)
-        {
-            return visitor.VisitHtmlText(this);
-        }
-
-        internal override SyntaxNode CreateRed(SyntaxNode parent, int position)
-        {
-            return new Syntax.HtmlTextSyntax(this, parent, position);
-        }
-
-        internal override GreenNode SetDiagnostics(RazorDiagnostic[] diagnostics)
-        {
-            return new HtmlTextSyntax(_value, diagnostics, GetAnnotations());
-        }
-
-        internal override GreenNode SetAnnotations(SyntaxAnnotation[] annotations)
-        {
-            return new HtmlTextSyntax(_value, GetDiagnostics(), annotations);
-        }
-    }
-}

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/SyntaxFactory.cs

@@ -6,13 +6,8 @@ using System.Linq;
 
 namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
 {
-    internal static class SyntaxFactory
+    internal static partial class SyntaxFactory
     {
-        internal static HtmlTextSyntax HtmlText(SyntaxList<SyntaxToken> textTokens)
-        {
-            return new HtmlTextSyntax(textTokens.Node);
-        }
-
         internal static SyntaxToken Token(SyntaxKind kind, string content, IEnumerable<RazorDiagnostic> diagnostics)
         {
             return Token(kind, content, diagnostics.ToArray());

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/SyntaxList.cs

@@ -121,6 +121,16 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
             }
         }
 
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
+        {
+            return visitor.Visit(this);
+        }
+
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.Visit(this);
+        }
+
         internal class WithTwoChildren : SyntaxList
         {
             private readonly GreenNode _child0;

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/SyntaxToken.cs

@@ -134,9 +134,14 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
             throw new InvalidOperationException("Tokens don't have slots.");
         }
 
-        internal override GreenNode Accept(SyntaxVisitor visitor)
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
         {
-            return visitor.VisitSyntaxToken(this);
+            return visitor.VisitToken(this);
+        }
+
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.VisitToken(this);
         }
 
         public override bool IsEquivalentTo(GreenNode other)

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/SyntaxTrivia.cs

@@ -62,9 +62,14 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
             return new Syntax.SyntaxTrivia(this, parent, position);
         }
 
-        internal override GreenNode Accept(SyntaxVisitor visitor)
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
         {
-            return visitor.VisitSyntaxTrivia(this);
+            return visitor.VisitTrivia(this);
+        }
+
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.VisitTrivia(this);
         }
 
         internal override GreenNode SetDiagnostics(RazorDiagnostic[] diagnostics)

src/Microsoft.AspNetCore.Razor.Language/Syntax/InternalSyntax/SyntaxVisitor.cs

@@ -3,41 +3,58 @@
 
 namespace Microsoft.AspNetCore.Razor.Language.Syntax.InternalSyntax
 {
-    internal abstract class SyntaxVisitor
+    internal abstract partial class SyntaxVisitor<TResult>
+    {
+        public virtual TResult Visit(GreenNode node)
+        {
+            if (node == null)
+            {
+                return default(TResult);
+            }
+
+            return node.Accept(this);
+        }
+
+        public virtual TResult VisitToken(SyntaxToken token)
+        {
+            return DefaultVisit(token);
+        }
+
+        public virtual TResult VisitTrivia(SyntaxTrivia trivia)
+        {
+            return DefaultVisit(trivia);
+        }
+
+        protected virtual TResult DefaultVisit(GreenNode node)
+        {
+            return default(TResult);
+        }
+    }
+
+    internal abstract partial class SyntaxVisitor
     {
         public virtual GreenNode Visit(GreenNode node)
         {
             if (node != null)
             {
-                return node.Accept(this);
+                node.Accept(this);
             }
 
             return null;
         }
 
-        public virtual GreenNode VisitSyntaxNode(GreenNode node)
+        public virtual void VisitToken(SyntaxToken token)
         {
-            return node;
+            DefaultVisit(token);
         }
 
-        public virtual GreenNode VisitHtmlNode(HtmlNodeSyntax node)
+        public virtual void VisitTrivia(SyntaxTrivia trivia)
         {
-            return VisitSyntaxNode(node);
+            DefaultVisit(trivia);
         }
 
-        public virtual GreenNode VisitHtmlText(HtmlTextSyntax node)
+        protected virtual void DefaultVisit(GreenNode node)
         {
-            return VisitHtmlNode(node);
-        }
-
-        public virtual SyntaxToken VisitSyntaxToken(SyntaxToken token)
-        {
-            return token;
-        }
-
-        public virtual SyntaxTrivia VisitSyntaxTrivia(SyntaxTrivia trivia)
-        {
-            return trivia;
         }
     }
 }

src/Microsoft.AspNetCore.Razor.Language/Syntax/Syntax.xml

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<Tree Root="SyntaxNode">
+  <PredefinedNode Name="SyntaxToken" Base="SyntaxNode" />
+  
+  <!-- Common -->
+  <AbstractNode Name="RazorSyntaxNode" Base="SyntaxNode" />
+  <Node Name="RazorCommentBlockSyntax" Base="RazorSyntaxNode">
+    <Kind Name="RazorComment" />
+    <Field Name="StartCommentTransition" Type="SyntaxToken">
+      <Kind Name="RazorCommentTransition" />
+    </Field>
+    <Field Name="StartCommentStar" Type="SyntaxToken">
+      <Kind Name="RazorCommentStar" />
+    </Field>
+    <Field Name="Comment" Type="SyntaxToken" Optional="true">
+      <Kind Name="RazorComment" />
+    </Field>
+    <Field Name="EndCommentStar" Type="SyntaxToken">
+      <Kind Name="RazorCommentStar" />
+    </Field>
+    <Field Name="EndCommentTransition" Type="SyntaxToken">
+      <Kind Name="RazorCommentTransition" />
+    </Field>
+  </Node>
+
+  <!-- HTML -->
+  <AbstractNode Name="HtmlSyntaxNode" Base="RazorSyntaxNode" />
+  <Node Name="HtmlTextSyntax" Base="HtmlSyntaxNode">
+    <Kind Name="HtmlText" />
+    <Field Name="TextTokens" Type="SyntaxList&lt;SyntaxToken&gt;" />
+  </Node>
+  
+  <!-- CSharp -->
+  <AbstractNode Name="CSharpSyntaxNode" Base="RazorSyntaxNode" />
+  <Node Name="CSharpTransitionSyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpTransition" />
+    <Field Name="Transition" Type="SyntaxToken">
+      <Kind Name="Transition" />
+    </Field>
+  </Node>
+  <Node Name="CSharpMetaCodeSyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpMetaCode" />
+    <Field Name="MetaCode" Type="SyntaxList&lt;SyntaxToken&gt;" />
+  </Node>
+  <Node Name="CSharpCodeLiteralSyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpCodeLiteral" />
+    <Field Name="CSharpTokens" Type="SyntaxList&lt;SyntaxToken&gt;" />
+  </Node>
+  <Node Name="CSharpCodeBlockSyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpCodeBlock" />
+    <Field Name="Children" Type="SyntaxList&lt;RazorSyntaxNode&gt;" />
+  </Node>
+  <AbstractNode Name="CSharpBlockSyntax" Base="CSharpSyntaxNode">
+    <Field Name="Transition" Type="CSharpTransitionSyntax" />
+    <Field Name="Body" Type="CSharpSyntaxNode" />
+  </AbstractNode>
+  <Node Name="CSharpStatement" Base="CSharpBlockSyntax">
+    <Kind Name="CSharpStatement" />
+    <Field Name="Transition" Type="CSharpTransitionSyntax" Override="true">
+      <Kind Name="CSharpTransition" />
+    </Field>
+    <Field Name="Body" Type="CSharpSyntaxNode" Override="true">
+      <Kind Name="CSharpStatementBody" />
+    </Field>
+  </Node>
+  <Node Name="CSharpStatementBodySyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpStatementBody" />
+    <Field Name="OpenBrace" Type="CSharpMetaCodeSyntax" />
+    <Field Name="CSharpCode" Type="CSharpCodeBlockSyntax" />
+    <Field Name="CloseBrace" Type="CSharpMetaCodeSyntax" />
+  </Node>
+  <Node Name="CSharpExpression" Base="CSharpBlockSyntax">
+    <Kind Name="CSharpExpression" />
+    <Field Name="Transition" Type="CSharpTransitionSyntax" Override="true">
+      <Kind Name="CSharpTransition" />
+    </Field>
+    <Field Name="Body" Type="CSharpSyntaxNode" Override="true">
+      <Kind Name="CSharpExpressionBody" />
+    </Field>
+  </Node>
+  <Node Name="CSharpExpressionBodySyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpExpressionBody" />
+    <Field Name="OpenParen" Type="CSharpMetaCodeSyntax" Optional="true" />
+    <Field Name="CSharpCode" Type="CSharpCodeBlockSyntax" />
+    <Field Name="CloseParen" Type="CSharpMetaCodeSyntax" Optional="true" />
+  </Node>
+  <Node Name="CSharpDirectiveSyntax" Base="CSharpBlockSyntax">
+    <Kind Name="CSharpDirective" />
+    <Field Name="Transition" Type="CSharpTransitionSyntax" Override="true">
+      <Kind Name="CSharpTransition" />
+    </Field>
+    <Field Name="Body" Type="CSharpSyntaxNode" Override="true">
+      <Kind Name="CSharpDirectiveBody" />
+    </Field>
+  </Node>
+  <Node Name="CSharpDirectiveBodySyntax" Base="CSharpSyntaxNode">
+    <Kind Name="CSharpDirectiveBody" />
+    <Field Name="Keyword" Type="CSharpMetaCodeSyntax" />
+    <Field Name="CSharpCode" Type="CSharpCodeBlockSyntax" />
+  </Node>
+</Tree>

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxFactory.cs

@@ -3,9 +3,14 @@
 
 namespace Microsoft.AspNetCore.Razor.Language.Syntax
 {
-    internal static class SyntaxFactory
+    internal static partial class SyntaxFactory
     {
-        internal static SyntaxToken Token(SyntaxKind kind, string content, params RazorDiagnostic[] diagnostics)
+        public static SyntaxToken Token(SyntaxKind kind, params RazorDiagnostic[] diagnostics)
+        {
+            return Token(kind, content: string.Empty, diagnostics: diagnostics);
+        }
+
+        public static SyntaxToken Token(SyntaxKind kind, string content, params RazorDiagnostic[] diagnostics)
         {
             return new SyntaxToken(InternalSyntax.SyntaxFactory.Token(kind, content), parent: null, position: 0);
         }

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxKind.cs

@@ -6,9 +6,26 @@ namespace Microsoft.AspNetCore.Razor.Language
     internal enum SyntaxKind : byte
     {
         #region Nodes
+        // HTML
         HtmlText,
         HtmlDocument,
         HtmlDeclaration,
+
+        // CSharp
+        CSharpBlock,
+        CSharpStatement,
+        CSharpStatementBody,
+        CSharpExpression,
+        CSharpExpressionBody,
+        CSharpDirective,
+        CSharpDirectiveBody,
+        CSharpCodeBlock,
+        CSharpCodeLiteral,
+        CSharpMetaCode,
+        CSharpTransition,
+
+        // Common
+        RazorComment,
         #endregion
 
         #region Tokens
@@ -89,7 +106,7 @@ namespace Microsoft.AspNetCore.Razor.Language
         Hash,
 
         // Razor specific
-        RazorComment,
+        RazorCommentLiteral,
         RazorCommentStar,
         RazorCommentTransition,
         #endregion

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxList.cs

@@ -10,11 +10,16 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
         {
         }
 
-        internal override SyntaxNode Accept(SyntaxVisitor visitor)
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
         {
             return visitor.Visit(this);
         }
 
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.Visit(this);
+        }
+
         internal class WithTwoChildren : SyntaxList
         {
             private SyntaxNode _child0;

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxNode.cs

@@ -80,7 +80,9 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
 
         public bool ContainsAnnotations => Green.ContainsAnnotations;
 
-        internal abstract SyntaxNode Accept(SyntaxVisitor visitor);
+        public abstract TResult Accept<TResult>(SyntaxVisitor<TResult> visitor);
+
+        public abstract void Accept(SyntaxVisitor visitor);
 
         internal abstract SyntaxNode GetNodeSlot(int index);
 
@@ -103,6 +105,24 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
             return result;
         }
 
+        // Special case of above function where slot = 0, does not need GetChildPosition 
+        internal SyntaxNode GetRedAtZero(ref SyntaxNode field)
+        {
+            var result = field;
+
+            if (result == null)
+            {
+                var green = Green.GetSlot(0);
+                if (green != null)
+                {
+                    Interlocked.CompareExchange(ref field, green.CreateRed(this, Position), null);
+                    result = field;
+                }
+            }
+
+            return result;
+        }
+
         protected T GetRed<T>(ref T field, int slot) where T : SyntaxNode
         {
             var result = field;
@@ -120,6 +140,24 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
             return result;
         }
 
+        // special case of above function where slot = 0, does not need GetChildPosition 
+        protected T GetRedAtZero<T>(ref T field) where T : SyntaxNode
+        {
+            var result = field;
+
+            if (result == null)
+            {
+                var green = Green.GetSlot(0);
+                if (green != null)
+                {
+                    Interlocked.CompareExchange(ref field, (T)green.CreateRed(this, Position), null);
+                    result = field;
+                }
+            }
+
+            return result;
+        }
+
         internal SyntaxNode GetRedElement(ref SyntaxNode element, int slot)
         {
             Debug.Assert(IsList);

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxNodeExtensions.cs

@@ -0,0 +1,13 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.AspNetCore.Razor.Language.Syntax
+{
+    internal static class SyntaxNodeExtensions
+    {
+        public static TNode WithAnnotations<TNode>(this TNode node, params SyntaxAnnotation[] annotations) where TNode : SyntaxNode
+        {
+            return (TNode)node.Green.SetAnnotations(annotations).CreateRed();
+        }
+    }
+}

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxToken.cs

@@ -69,9 +69,14 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
             throw new InvalidOperationException("Tokens can't have slots.");
         }
 
-        internal override SyntaxNode Accept(SyntaxVisitor visitor)
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
         {
-            return visitor.VisitSyntaxToken(this);
+            return visitor.VisitToken(this);
+        }
+
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.VisitToken(this);
         }
 
         public SyntaxToken WithLeadingTrivia(SyntaxNode trivia)

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxTrivia.cs

@@ -26,9 +26,14 @@ namespace Microsoft.AspNetCore.Razor.Language.Syntax
             throw new InvalidOperationException();
         }
 
-        internal override SyntaxNode Accept(SyntaxVisitor visitor)
+        public override TResult Accept<TResult>(SyntaxVisitor<TResult> visitor)
         {
-            return visitor.VisitSyntaxTrivia(this);
+            return visitor.VisitTrivia(this);
+        }
+
+        public override void Accept(SyntaxVisitor visitor)
+        {
+            visitor.VisitTrivia(this);
         }
 
         public sealed override SyntaxTriviaList GetTrailingTrivia()

src/Microsoft.AspNetCore.Razor.Language/Syntax/SyntaxVisitor.cs

@@ -3,41 +3,56 @@
 
 namespace Microsoft.AspNetCore.Razor.Language.Syntax
 {
-    internal abstract class SyntaxVisitor
+    internal abstract partial class SyntaxVisitor<TResult>
     {
-        public virtual SyntaxNode Visit(SyntaxNode node)
+        public virtual TResult Visit(SyntaxNode node)
         {
             if (node != null)
             {
                 return node.Accept(this);
             }
 
-            return null;
+            return default(TResult);
         }
 
-        public virtual SyntaxNode VisitSyntaxNode(SyntaxNode node)
+        public virtual TResult VisitToken(SyntaxToken token)
         {
-            return node;
+            return DefaultVisit(token);
         }
 
-        public virtual SyntaxNode VisitHtmlNode(HtmlNodeSyntax node)
+        public virtual TResult VisitTrivia(SyntaxTrivia trivia)
         {
-            return VisitSyntaxNode(node);
+            return DefaultVisit(trivia);
         }
 
-        public virtual SyntaxNode VisitHtmlText(HtmlTextSyntax node)
+        protected virtual TResult DefaultVisit(SyntaxNode node)
         {
-            return VisitHtmlNode(node);
+            return default(TResult);
+        }
+    }
+
+    internal abstract partial class SyntaxVisitor
+    {
+        public virtual void Visit(SyntaxNode node)
+        {
+            if (node != null)
+            {
+                node.Accept(this);
+            }
         }
 
-        public virtual SyntaxToken VisitSyntaxToken(SyntaxToken token)
+        public virtual void VisitToken(SyntaxToken token)
         {
-            return token;
+            DefaultVisit(token);
         }
 
-        public virtual SyntaxTrivia VisitSyntaxTrivia(SyntaxTrivia trivia)
+        public virtual void VisitTrivia(SyntaxTrivia trivia)
+        {
+            DefaultVisit(trivia);
+        }
+
+        public virtual void DefaultVisit(SyntaxNode node)
         {
-            return trivia;
         }
     }
 }

test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpTokenizerCommentTest.cs

@@ -17,7 +17,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo * Bar * Baz *",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo * Bar * Baz *"));
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo * Bar * Baz *"));
         }
 
         [Fact]
@@ -27,7 +27,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo * Bar * Baz *@",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo * Bar * Baz "),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo * Bar * Baz "),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"));
         }
@@ -39,7 +39,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo Bar Baz *@",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo Bar Baz "),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo Bar Baz "),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"));
         }

test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/DirectiveCSharpTokenizerTest.cs

@@ -28,7 +28,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@*included*@\r\n @something   \"value\"\r\n @this is ignored",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, "included"),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, "included"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.NewLine, "\r\n"),

test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/DirectiveHtmlTokenizerTest.cs

@@ -27,7 +27,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 SyntaxFactory.Token(SyntaxKind.Whitespace, " "),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, "included"),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, "included"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.Whitespace, " "),

test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/HtmlTokenizerTest.cs

@@ -134,7 +134,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo * Bar * Baz *",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo * Bar * Baz *"));
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo * Bar * Baz *"));
         }
 
         [Fact]
@@ -144,7 +144,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo * Bar * Baz *@",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo * Bar * Baz "),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo * Bar * Baz "),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"));
         }
@@ -156,7 +156,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
                 "@* Foo Bar Baz *@",
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
-                SyntaxFactory.Token(SyntaxKind.RazorComment, " Foo Bar Baz "),
+                SyntaxFactory.Token(SyntaxKind.RazorCommentLiteral, " Foo Bar Baz "),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentStar, "*"),
                 SyntaxFactory.Token(SyntaxKind.RazorCommentTransition, "@"));
         }

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenCatchAndFinallyClause.stree.txt

@@ -31,7 +31,7 @@ Statement block - Gen<None> - 75 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (38:0,38) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (39:0,39) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (44:0,44) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (45:0,45) - Tokens:1
@@ -44,7 +44,7 @@ Statement block - Gen<None> - 75 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (48:0,48) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (49:0,49) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (54:0,54) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (55:0,55) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenDoAndWhileClause.stree.txt

@@ -21,7 +21,7 @@ Statement block - Gen<None> - 54 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (23:0,23) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (24:0,24) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (29:0,29) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (30:0,30) - Tokens:1
@@ -34,7 +34,7 @@ Statement block - Gen<None> - 54 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (33:0,33) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (34:0,34) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (39:0,39) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (40:0,40) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenElseIfAndElseClause.stree.txt

@@ -36,7 +36,7 @@ Statement block - Gen<None> - 78 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (44:0,44) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (45:0,45) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (50:0,50) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (51:0,51) - Tokens:1
@@ -49,7 +49,7 @@ Statement block - Gen<None> - 78 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (54:0,54) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (55:0,55) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (60:0,60) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (61:0,61) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenIfAndElseClause.stree.txt

@@ -20,7 +20,7 @@ Statement block - Gen<None> - 54 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (20:0,20) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (26:0,26) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (27:0,27) - Tokens:1
@@ -33,7 +33,7 @@ Statement block - Gen<None> - 54 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (30:0,30) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (31:0,31) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (36:0,36) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (37:0,37) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenIfAndElseIfClause.stree.txt

@@ -20,7 +20,7 @@ Statement block - Gen<None> - 62 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (20:0,20) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (26:0,26) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (27:0,27) - Tokens:1
@@ -33,7 +33,7 @@ Statement block - Gen<None> - 62 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (30:0,30) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (31:0,31) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (36:0,36) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (37:0,37) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenTryAndCatchClause.stree.txt

@@ -16,7 +16,7 @@ Statement block - Gen<None> - 55 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (15:0,15) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (21:0,21) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (22:0,22) - Tokens:1
@@ -29,7 +29,7 @@ Statement block - Gen<None> - 55 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (25:0,25) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (26:0,26) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (31:0,31) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (32:0,32) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpBlockTest/SupportsRazorCommentBetweenTryAndFinallyClause.stree.txt

@@ -17,7 +17,7 @@ Statement block - Gen<None> - 53 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (16:0,16) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Foo ] - SpanEditHandler;Accepts:Any - (17:0,17) - Tokens:1
-            SyntaxKind.RazorComment;[ Foo ];
+            SyntaxKind.RazorCommentLiteral;[ Foo ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (22:0,22) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (23:0,23) - Tokens:1
@@ -30,7 +30,7 @@ Statement block - Gen<None> - 53 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (26:0,26) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ Bar ] - SpanEditHandler;Accepts:Any - (27:0,27) - Tokens:1
-            SyntaxKind.RazorComment;[ Bar ];
+            SyntaxKind.RazorCommentLiteral;[ Bar ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (32:0,32) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (33:0,33) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpDirectivesTest/DirectiveDescriptor_FileScoped_CanBeBeneathOtherWhiteSpaceCommentsAndDirectives.stree.txt

@@ -7,7 +7,7 @@ Markup block - Gen<None> - 130 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (1:0,1) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ There are two directives beneath this ] - SpanEditHandler;Accepts:Any - (2:0,2) - Tokens:1
-            SyntaxKind.RazorComment;[ There are two directives beneath this ];
+            SyntaxKind.RazorCommentLiteral;[ There are two directives beneath this ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (41:0,41) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (42:0,42) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpRazorCommentsTest/RazorCommentInClosingTagBlock.stree.txt

@@ -16,7 +16,7 @@ Markup block - Gen<None> - 33 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (14:0,14) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ razor comment ] - SpanEditHandler;Accepts:Any - (15:0,15) - Tokens:1
-            SyntaxKind.RazorComment;[ razor comment ];
+            SyntaxKind.RazorCommentLiteral;[ razor comment ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (30:0,30) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (31:0,31) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpRazorCommentsTest/RazorCommentInOpeningTagBlock.stree.txt

@@ -10,7 +10,7 @@ Markup block - Gen<None> - 33 - (0:0,0)
             MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (7:0,7) - Tokens:1
                 SyntaxKind.RazorCommentStar;[*];
             Comment span - Gen<None> - [ razor comment ] - SpanEditHandler;Accepts:Any - (8:0,8) - Tokens:1
-                SyntaxKind.RazorComment;[ razor comment ];
+                SyntaxKind.RazorCommentLiteral;[ razor comment ];
             MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (23:0,23) - Tokens:1
                 SyntaxKind.RazorCommentStar;[*];
             Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (24:0,24) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpRazorCommentsTest/RazorCommentWithExtraNewLineInMarkup.stree.txt

@@ -13,7 +13,7 @@ Markup block - Gen<None> - 45 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (8:2,1) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ content ] - SpanEditHandler;Accepts:Any - (9:2,2) - Tokens:1
-            SyntaxKind.RazorComment;[ content ];
+            SyntaxKind.RazorCommentLiteral;[ content ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (18:2,11) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (19:2,12) - Tokens:1
@@ -26,7 +26,7 @@ Markup block - Gen<None> - 45 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (23:3,1) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [LFcontentLF] - SpanEditHandler;Accepts:Any - (24:3,2) - Tokens:1
-            SyntaxKind.RazorComment;[LFcontentLF];
+            SyntaxKind.RazorCommentLiteral;[LFcontentLF];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (35:5,0) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (36:5,1) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpRazorCommentsTest/RazorCommentsSurroundingMarkup.stree.txt

@@ -12,7 +12,7 @@ Markup block - Gen<None> - 42 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (6:1,1) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ hello ] - SpanEditHandler;Accepts:Any - (7:1,2) - Tokens:1
-            SyntaxKind.RazorComment;[ hello ];
+            SyntaxKind.RazorCommentLiteral;[ hello ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (14:1,9) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (15:1,10) - Tokens:1
@@ -27,7 +27,7 @@ Markup block - Gen<None> - 42 - (0:0,0)
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (26:1,21) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Comment span - Gen<None> - [ world ] - SpanEditHandler;Accepts:Any - (27:1,22) - Tokens:1
-            SyntaxKind.RazorComment;[ world ];
+            SyntaxKind.RazorCommentLiteral;[ world ];
         MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (34:1,29) - Tokens:1
             SyntaxKind.RazorCommentStar;[*];
         Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (35:1,30) - Tokens:1

test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/TagHelperParseTreeRewriterTest/AllowsRazorCommentsAsChildren.stree.txt

@@ -20,7 +20,7 @@ Markup block - Gen<None> - 26 - (0:0,0)
             MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (15:0,15) - Tokens:1
                 SyntaxKind.RazorCommentStar;[*];
             Comment span - Gen<None> - [asdf] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:1
-                SyntaxKind.RazorComment;[asdf];
+                SyntaxKind.RazorCommentLiteral;[asdf];
             MetaCode span - Gen<None> - [*] - SpanEditHandler;Accepts:None - (20:0,20) - Tokens:1
                 SyntaxKind.RazorCommentStar;[*];
             Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (21:0,21) - Tokens:1