anchor.diff:              colNumber = 1;
             }
             bool shouldIgnore = false;
  -          if (filename == mainFile.path) {
  +          if (documentAllMembersPattern.firstMatch(errorMessage) != null) {
  +            // https://github.com/dart-lang/linter/issues/207
  +            // https://github.com/dart-lang/linter/issues/208
  +            shouldIgnore = !isFlutterLibrary(filename);
  +          } else if (filename == mainFile.path) {
               Match libs = conflictingNamesPattern.firstMatch(errorMessage);
               Match missing = missingFilePattern.firstMatch(errorMessage);
               if (libs != null) {
  
positive.code:     RegExp constructorTearOffsPattern = new RegExp('.+#.+// analyzer doesn\'t like constructor tear-offs');
      RegExp conflictingNamesPattern = new RegExp('^The imported libraries \'([^\']+)\' and \'([^\']+)\' cannot have the same name \'([^\']+)\'\$');
      RegExp missingFilePattern = new RegExp('^Target of URI does not exist: \'([^\')]+)\'\$');
  
      Set<String> changedFiles = new Set<String>(); // files about which we've complained that they changed
  
  
negative.code:   @override
    Future<int> runInProject() async {
      return argResults['watch'] ? _analyzeWatch() : _analyzeOnce();
    }
  
    List<String> flutterRootComponents;
    bool isFlutterLibrary(String filename) {
      flutterRootComponents ??= path.normalize(path.absolute(ArtifactStore.flutterRoot)).split(path.separator);
      List<String> filenameComponents = path.normalize(path.absolute(filename)).split(path.separator);
      if (filenameComponents.length < flutterRootComponents.length + 4) // the 4: 'packages', package_name, 'lib', file_name
        return false;
      for (int index = 0; index < flutterRootComponents.length; index += 1) {
        if (flutterRootComponents[index] != filenameComponents[index])
          return false;
      }
      if (filenameComponents[flutterRootComponents.length] != 'packages')
        return false;
      if (filenameComponents[flutterRootComponents.length + 1] == 'flutter_tools')
        return false;
      if (filenameComponents[flutterRootComponents.length + 2] != 'lib')
        return false;
      return true;
    }
  
    Future<int> _analyzeOnce() async {
  