Markup block - Gen<None> - 18 - (0:0,0)
    Tag block - Gen<None> - 18 - (0:0,0)
        Markup span - Gen<Markup> - [<foo] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:2
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[foo];
        Markup block - Gen<Attr:bar, bar="@(4:0,4),"@(14:0,14)> - 11 - (4:0,4)
            Markup span - Gen<None> - [ bar="] - SpanEditHandler;Accepts:Any - (4:0,4) - Tokens:4
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Text;[bar];
                SyntaxKind.Equals;[=];
                SyntaxKind.DoubleQuote;["];
            Markup block - Gen<DynAttr:@(10:0,10)> - 4 - (10:0,10)
                Expression block - Gen<Expr> - 4 - (10:0,10)
                    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (10:0,10) - Tokens:1
                        SyntaxKind.Transition;[@];
                    Code span - Gen<Expr> - [baz] - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14 - (11:0,11) - Tokens:1
                        SyntaxKind.Identifier;[baz];
            Markup span - Gen<None> - ["] - SpanEditHandler;Accepts:Any - (14:0,14) - Tokens:1
                SyntaxKind.DoubleQuote;["];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:None - (15:0,15) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.CloseAngle;[>];
