Markup block - Gen<None> - 20 - (0:0,0)
    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:1
        SyntaxKind.Transition;[@];
    MetaCode span - Gen<None> - [:] - SpanEditHandler;Accepts:Any - (1:0,1) - Tokens:1
        SyntaxKind.Colon;[:];
    Markup span - Gen<Markup> - [<li>Foo ] - SpanEditHandler;Accepts:Any - (2:0,2) - Tokens:5
        SyntaxKind.OpenAngle;[<];
        SyntaxKind.Text;[li];
        SyntaxKind.CloseAngle;[>];
        SyntaxKind.Text;[Foo];
        SyntaxKind.Whitespace;[ ];
    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> - [Bar] - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14 - (11:0,11) - Tokens:1
            SyntaxKind.Identifier;[Bar];
    Markup span - Gen<Markup> - [ BazLF] - SpanEditHandler;Accepts:None - (14:0,14) - Tokens:3
        SyntaxKind.Whitespace;[ ];
        SyntaxKind.Text;[Baz];
        SyntaxKind.NewLine;[LF];
