anchor.diff:  import 'dart:async';
   import 'package:git/git.dart';
   
  -main() async {
  +mainB() async {
     final ProjectMetaData metadata =
         await ProjectMetaData.fromProjectYaml(p.absolute('project.yaml'));
   
  
positive.code:       installDir);
  
    print(await gitDir.isWorkingTreeClean());
  }
  
  mainX() async {
  
negative.code:   print(metadata.childProjects);
  }
  
  main() async {
    final Directory installDir = await Directory.systemTemp.createTemp();
  
    print(installDir);
  