Statement block - Gen<None> - 11 - (0:0,0)
    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:1
        SyntaxKind.Transition;[@];
    MetaCode span - Gen<None> - [{] - SpanEditHandler;Accepts:None - (1:0,1) - Tokens:1
        SyntaxKind.LeftBrace;[{];
    Code span - Gen<Stmt> - [ foo(); ] - AutoCompleteEditHandler;Accepts:Any,AutoComplete:[<null>];AtEOL - (2:0,2) - Tokens:6
        SyntaxKind.Whitespace;[ ];
        SyntaxKind.Identifier;[foo];
        SyntaxKind.LeftParenthesis;[(];
        SyntaxKind.RightParenthesis;[)];
        SyntaxKind.Semicolon;[;];
        SyntaxKind.Whitespace;[ ];
    MetaCode span - Gen<None> - [}] - SpanEditHandler;Accepts:None - (10:0,10) - Tokens:1
        SyntaxKind.RightBrace;[}];
