anchor.diff:  
       // Toggle linter settings.
       atom.config.setValue('linter.showErrorPanel', !enabled);
  -    atom.config.setValue('linter.showErrorTabFile', !enabled);
  -    atom.config.setValue('linter.showErrorTabProject', !enabled);
  +    atom.config.setValue('linter.displayLinterInfo', !enabled);
     }
   
     void _toggleView() => view.toggle();
  
positive.code: import '../views.dart';
  
  final String _errorPref = '${pluginId}.useErrorsView';
  final String _initKeyPath = '_dartlang._errorsInitialized';
  
  class ErrorsController implements Disposable {
    Disposables disposables = new Disposables();
  
negative.code:     _sub = atom.config.onDidChange(_errorPref).listen(_togglePrefs);
  
      // Check to see if this is our first run.
      if (atom.config.getValue(_initKeyPath) != true) {
        atom.config.setValue(_initKeyPath, true);
        _togglePrefs(true);
      } else if (atom.config.getValue(_initKeyPath2) != true) {
        // Check to see if we need to toggle the `linter.displayLinterInfo` setting.
        atom.config.setValue(_initKeyPath2, true);
        atom.config.setValue('linter.displayLinterInfo',
            atom.config.getValue('linter.showErrorPanel'));
      }
    }
  
  