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> - [] - SpanEditHandler;Accepts:Any - (5:0,5) - Tokens:1
        SyntaxKind.Unknown;[];
    Expression block - Gen<Expr> - 4 - (5:0,5)
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (5:0,5) - Tokens:1
            SyntaxKind.Transition;[@];
        Code span - Gen<Expr> - [bar] - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14 - (6:0,6) - Tokens:1
            SyntaxKind.Identifier;[bar];
    Tag block - Gen<None> - 5 - (9:0,9)
        Markup span - Gen<Markup> - [<baz>] - SpanEditHandler;Accepts:None - (9:0,9) - Tokens:3
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[baz];
            SyntaxKind.CloseAngle;[>];
    Markup span - Gen<Markup> - [] - SpanEditHandler;Accepts:Any - (14:0,14) - Tokens:1
        SyntaxKind.Unknown;[];
    Expression block - Gen<Expr> - 4 - (14:0,14)
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (14:0,14) - Tokens:1
            SyntaxKind.Transition;[@];
        Code span - Gen<Expr> - [boz] - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14 - (15:0,15) - Tokens:1
            SyntaxKind.Identifier;[boz];
    Tag block - Gen<None> - 6 - (18:0,18)
        Markup span - Gen<Markup> - [</baz>] - SpanEditHandler;Accepts:None - (18:0,18) - Tokens:4
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.Text;[baz];
            SyntaxKind.CloseAngle;[>];
    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;[>];
