Statement block - Gen<None> - 51 - (0:0,0)
    Code span - Gen<Stmt> - [do { var foo = bar; }LF// FooLF// BarLFwhile(true);] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:24
        CSharpTokenType.Keyword;[do];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.LeftBrace;[{];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.Identifier;[var];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.Identifier;[foo];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.Assign;[=];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.Identifier;[bar];
        CSharpTokenType.Semicolon;[;];
        CSharpTokenType.WhiteSpace;[ ];
        CSharpTokenType.RightBrace;[}];
        CSharpTokenType.NewLine;[LF];
        CSharpTokenType.Comment;[// Foo];
        CSharpTokenType.NewLine;[LF];
        CSharpTokenType.Comment;[// Bar];
        CSharpTokenType.NewLine;[LF];
        CSharpTokenType.Keyword;[while];
        CSharpTokenType.LeftParenthesis;[(];
        CSharpTokenType.Keyword;[true];
        CSharpTokenType.RightParenthesis;[)];
        CSharpTokenType.Semicolon;[;];
