anchor.diff:          enableLowResourcesMode: options.enableLowResourcesMode,
           assumeTty: options.assumeTty,
           outputDir: outputDir,
  -        verbose: options.verbose);
  +        verbose: options.verbose,
  +        packageGraph: packageGraph);
   
       // Run the tests!
       await _runTests(outputDir);
  
positive.code:     }
    }
  }
  
negative.code: 
    @override
    Future<Null> run() async {
      var packageGraph = new PackageGraph.forThisPackage();
      _ensureBuildTestDependency(packageGraph);
      var options = _readOptions();
      // We always need an output dir when running tests, so we create a tmp dir
      // if the user didn't specify one.
  