Markup block - Gen<None> - 19 - (0:0,0)
    Markup span - Gen<Markup> - [{] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:1
        SyntaxKind.Text;[{];
    Tag block - Gen<None> - 17 - (1:0,1)
        Markup span - Gen<Markup> - [<span] - SpanEditHandler;Accepts:Any - (1:0,1) - Tokens:2
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[span];
        Markup block - Gen<Attr:foo, foo='@(6:0,6),'@(14:0,14)> - 9 - (6:0,6)
            Markup span - Gen<None> - [ foo='] - SpanEditHandler;Accepts:Any - (6:0,6) - Tokens:4
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Text;[foo];
                SyntaxKind.Equals;[=];
                SyntaxKind.SingleQuote;['];
            Markup block - Gen<None> - 2 - (12:0,12)
                Markup span - Gen<LitAttr:@(12:0,12)> - [@] - SpanEditHandler;Accepts:None - (12:0,12) - Tokens:1
                    SyntaxKind.Transition;[@];
                Markup span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (13:0,13) - Tokens:1
                    SyntaxKind.Transition;[@];
            Markup span - Gen<None> - ['] - SpanEditHandler;Accepts:Any - (14:0,14) - Tokens:1
                SyntaxKind.SingleQuote;['];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:Any - (15:0,15) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.CloseAngle;[>];
    Markup span - Gen<Markup> - [}] - SpanEditHandler;Accepts:Any - (18:0,18) - Tokens:1
        SyntaxKind.Text;[}];
