CSharpCodeBlock - [0..22)::22 - [@try { someMethod(); }]
    CSharpTransition - [0..1)::1 - Gen<None> - SpanEditHandler;Accepts:None
        Transition;[@];
    CSharpStatementLiteral - [1..22)::21 - [try { someMethod(); }] - Gen<Stmt> - SpanEditHandler;Accepts:Any
        Keyword;[try];
        Whitespace;[ ];
        LeftBrace;[{];
        Whitespace;[ ];
        Identifier;[someMethod];
        LeftParenthesis;[(];
        RightParenthesis;[)];
        Semicolon;[;];
        Whitespace;[ ];
        RightBrace;[}];
