anchor.diff:    }
   
     List<Project> getProjects() {
  -    var list = <Project>[];
  +    List list = [];
       for (var child in _children) {
         if (child is Project) list.add(child);
       }
  
positive.code:   }
  
    List<File> getFiles() {
      var list = <File>[];
      for (var child in _children) {
        if (child is File) list.add(child);
      }
  
negative.code: 
    Future<Resource> _gatherChildren(Container container) {
      chrome_gen.DirectoryEntry dir = container._entry;
      List futures = [];
  
      return dir.createReader().readEntries().then((entries) {
        for (chrome_gen.Entry ent in entries) {
  