RazorDocument - [0..24)::24 - [<foo><!-- @foo --></foo>]
    MarkupBlock - [0..24)::24
        MarkupTagBlock - [0..5)::5 - [<foo>]
            MarkupTextLiteral - [0..5)::5 - [<foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[foo];
                CloseAngle;[>];
        MarkupCommentBlock - [5..18)::13
            MarkupTextLiteral - [5..9)::4 - [<!--] - Gen<Markup> - SpanEditHandler;Accepts:None
                OpenAngle;[<];
                Bang;[!];
                DoubleHyphen;[--];
            MarkupTextLiteral - [9..10)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Whitespace
                Whitespace;[ ];
            CSharpCodeBlock - [10..14)::4
                CSharpImplicitExpression - [10..14)::4
                    CSharpTransition - [10..11)::1 - Gen<None> - SpanEditHandler;Accepts:None
                        Transition;[@];
                    CSharpImplicitExpressionBody - [11..14)::3
                        CSharpCodeBlock - [11..14)::3
                            CSharpExpressionLiteral - [11..14)::3 - [foo] - Gen<Expr> - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14
                                Identifier;[foo];
            MarkupTextLiteral - [14..15)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Whitespace
                Whitespace;[ ];
            MarkupTextLiteral - [15..18)::3 - [-->] - Gen<Markup> - SpanEditHandler;Accepts:None
                DoubleHyphen;[--];
                CloseAngle;[>];
        MarkupTagBlock - [18..24)::6 - [</foo>]
            MarkupTextLiteral - [18..24)::6 - [</foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                ForwardSlash;[/];
                Text;[foo];
                CloseAngle;[>];
