Statement block - Gen<None> - 35 - (0:0,0)
    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
        CSharpSymbolType.Transition;[@];
    Code span - Gen<Stmt> - [while(true) { { { { foo(); } } } }] - SpanEditHandler;Accepts:None - (1:0,1) - Symbols:25
        CSharpSymbolType.Keyword;[while];
        CSharpSymbolType.LeftParenthesis;[(];
        CSharpSymbolType.Keyword;[true];
        CSharpSymbolType.RightParenthesis;[)];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.LeftBrace;[{];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.LeftBrace;[{];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.LeftBrace;[{];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.LeftBrace;[{];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.Identifier;[foo];
        CSharpSymbolType.LeftParenthesis;[(];
        CSharpSymbolType.RightParenthesis;[)];
        CSharpSymbolType.Semicolon;[;];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.RightBrace;[}];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.RightBrace;[}];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.RightBrace;[}];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.RightBrace;[}];
