Statement block - Gen<None> - 24 - (0:0,0)
    Code span - Gen<Stmt> - [if(foo) { ] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:7
        CSharpTokenType.Keyword;[if];
        CSharpTokenType.LeftParenthesis;[(];
        CSharpTokenType.Identifier;[foo];
        CSharpTokenType.RightParenthesis;[)];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.LeftBrace;[{];
        CSharpTokenType.WhiteSpace;[ ];
    Expression block - Gen<Expr> - 12 - (10:0,10)
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (10:0,10) - Tokens:1
            CSharpTokenType.Transition;[@];
        MetaCode span - Gen<None> - [(] - SpanEditHandler;Accepts:None - (11:0,11) - Tokens:1
            CSharpTokenType.LeftParenthesis;[(];
        Code span - Gen<Expr> - [foo + bar] - SpanEditHandler;Accepts:Any - (12:0,12) - Tokens:5
            CSharpTokenType.Identifier;[foo];
            CSharpTokenType.WhiteSpace;[ ];
            CSharpTokenType.Plus;[+];
            CSharpTokenType.WhiteSpace;[ ];
            CSharpTokenType.Identifier;[bar];
        MetaCode span - Gen<None> - [)] - SpanEditHandler;Accepts:None - (21:0,21) - Tokens:1
            CSharpTokenType.RightParenthesis;[)];
    Code span - Gen<Stmt> - [ }] - SpanEditHandler;Accepts:Any - (22:0,22) - Tokens:2
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.RightBrace;[}];
