RazorDocument - [0..31)::31 - [<foo><!-- Hello World --></foo>]
    MarkupBlock - [0..31)::31
        MarkupTagBlock - [0..5)::5 - [<foo>]
            MarkupTextLiteral - [0..5)::5 - [<foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[foo];
                CloseAngle;[>];
        MarkupCommentBlock - [5..25)::20
            MarkupTextLiteral - [5..9)::4 - [<!--] - Gen<Markup> - SpanEditHandler;Accepts:None
                OpenAngle;[<];
                Bang;[!];
                DoubleHyphen;[--];
            MarkupTextLiteral - [9..22)::13 - [ Hello World ] - Gen<Markup> - SpanEditHandler;Accepts:Whitespace
                Whitespace;[ ];
                Text;[Hello];
                Whitespace;[ ];
                Text;[World];
                Whitespace;[ ];
            MarkupTextLiteral - [22..25)::3 - [-->] - Gen<Markup> - SpanEditHandler;Accepts:None
                DoubleHyphen;[--];
                CloseAngle;[>];
        MarkupTagBlock - [25..31)::6 - [</foo>]
            MarkupTextLiteral - [25..31)::6 - [</foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                ForwardSlash;[/];
                Text;[foo];
                CloseAngle;[>];
