Markup block - Gen<None> - 30 - (0:0,0)
    Tag block - Gen<None> - 5 - (0:0,0)
        Markup span - Gen<Markup> - [<foo>] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:3
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[foo];
            SyntaxKind.CloseAngle;[>];
    Markup span - Gen<Markup> - [bar] - SpanEditHandler;Accepts:Any - (5:0,5) - Tokens:1
        SyntaxKind.Text;[bar];
    HtmlComment block - Gen<None> - 13 - (8:0,8)
        Markup span - Gen<Markup> - [<!--] - SpanEditHandler;Accepts:None - (8:0,8) - Tokens:3
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Bang;[!];
            SyntaxKind.DoubleHyphen;[--];
        Markup span - Gen<Markup> - [ zoop ] - SpanEditHandler;Accepts:Whitespace - (12:0,12) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.Text;[zoop];
            SyntaxKind.Whitespace;[ ];
        Markup span - Gen<Markup> - [-->] - SpanEditHandler;Accepts:None - (18:0,18) - Tokens:2
            SyntaxKind.DoubleHyphen;[--];
            SyntaxKind.CloseAngle;[>];
    Markup span - Gen<Markup> - [baz] - SpanEditHandler;Accepts:None - (21:0,21) - Tokens:1
        SyntaxKind.Text;[baz];
    Tag block - Gen<None> - 6 - (24:0,24)
        Markup span - Gen<Markup> - [</foo>] - SpanEditHandler;Accepts:None - (24:0,24) - Tokens:4
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.Text;[foo];
            SyntaxKind.CloseAngle;[>];
