Markup block - Gen<None> - 36 - (0:0,0)
    Tag block - Gen<None> - 5 - (0:0,0)
        Markup span - Gen<Markup> - [<foo>] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:3
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[foo];
            SyntaxKind.CloseAngle;[>];
    SyntaxKind.HtmlTextLiteral - [<![CDATA[ Hello World ]]>] - [5..30) - FullWidth: 25 - Slots: 1
        SyntaxKind.List - [<![CDATA[ Hello World ]]>] - [5..30) - FullWidth: 25 - Slots: 13
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Bang;[!];
            SyntaxKind.LeftBracket;[[];
            SyntaxKind.Text;[CDATA];
            SyntaxKind.LeftBracket;[[];
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.Text;[Hello];
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.Text;[World];
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.RightBracket;[]];
            SyntaxKind.RightBracket;[]];
            SyntaxKind.CloseAngle;[>];
    Tag block - Gen<None> - 6 - (30:0,30)
        Markup span - Gen<Markup> - [</foo>] - SpanEditHandler;Accepts:Any - (30:0,30) - Tokens:4
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.Text;[foo];
            SyntaxKind.CloseAngle;[>];
