Markup block - Gen<None> - 23 - (0:0,0)
    Markup span - Gen<Markup> - [<?xml version="1.0" ?>] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:12
        SyntaxKind.OpenAngle;[<];
        SyntaxKind.QuestionMark;[?];
        SyntaxKind.Text;[xml];
        SyntaxKind.Whitespace;[ ];
        SyntaxKind.Text;[version];
        SyntaxKind.Equals;[=];
        SyntaxKind.DoubleQuote;["];
        SyntaxKind.Text;[1.0];
        SyntaxKind.DoubleQuote;["];
        SyntaxKind.Whitespace;[ ];
        SyntaxKind.QuestionMark;[?];
        SyntaxKind.CloseAngle;[>];
    Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:None - (22:0,22) - Tokens:1
        SyntaxKind.Whitespace;[ ];
