Statement block - Gen<None> - 25 - (0:0,0)
    Code span - Gen<Stmt> - [if(foo) {] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:6
        SyntaxKind.Keyword;[if];
        SyntaxKind.LeftParenthesis;[(];
        SyntaxKind.Identifier;[foo];
        SyntaxKind.RightParenthesis;[)];
        SyntaxKind.Whitespace;[ ];
        SyntaxKind.LeftBrace;[{];
    Markup block - Gen<None> - 15 - (9:0,9)
        Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:Any - (9:0,9) - Tokens:1
            SyntaxKind.Whitespace;[ ];
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (10:0,10) - Tokens:1
            SyntaxKind.Transition;[@];
        MetaCode span - Gen<None> - [:] - SpanEditHandler;Accepts:Any - (11:0,11) - Tokens:1
            SyntaxKind.Colon;[:];
        Markup span - Gen<Markup> - [::SometextLF] - SpanEditHandler;Accepts:None - (12:0,12) - Tokens:2
            SyntaxKind.Text;[::Sometext];
            SyntaxKind.NewLine;[LF];
    Code span - Gen<Stmt> - [}] - SpanEditHandler;Accepts:Any - (24:1,0) - Tokens:1
        SyntaxKind.RightBrace;[}];
