anchor.diff:  import 'package:args/args.dart';
   import 'package:front_end/file_system.dart' show FileSystemEntity;
   import 'package:front_end/front_end.dart';
  +import 'package:front_end/src/byte_store/protected_file_byte_store.dart';
   import 'package:front_end/incremental_kernel_generator.dart';
   import 'package:front_end/memory_file_system.dart';
   import 'package:front_end/physical_file_system.dart';
  
positive.code:     print("Change '${changeSet.name}' - "
          "Incremental compilation took: ${iterTimer.elapsedMilliseconds}ms");
    }
  }
  
  /// Apply all edits of a single iteration by updating the copy of the file in
  
negative.code:         _resolveOverlayUri(options["sdk-library-specification"]);
    }
    if (options['target'] == 'flutter') {
      compilerOptions.target = new FlutterTarget(new TargetFlags());
    }
  
    var dir = Directory.systemTemp.createTempSync('ikg-cache');
    compilerOptions.byteStore = new ProtectedFileByteStore(dir.path);
  
    var timer1 = new Stopwatch()..start();
    var generator =
  