anchor.diff:        Transform wrappedTransform =
             new _AggregateTransformWrapper(aggregateTransform, entryPointAsset);
   
  -      _resolver = await resolvers.get(wrappedTransform);
  +      _resolver = await _resolvers.get(wrappedTransform);
         LibraryElement reflectableLibrary =
             _resolver.getLibraryByName("reflectable.reflectable");
         if (reflectableLibrary == null) {
  
positive.code: import 'encoding_constants.dart' as constants;
  import "reflectable_class_constants.dart" as reflectable_class_constants;
  import 'transformer_errors.dart' as errors;
  
  class ReflectionWorld {
    final List<_ReflectorDomain> reflectors = new List<_ReflectorDomain>();
  
negative.code:     _logger = aggregateTransform.logger;
      // The type argument in the return type is omitted because the
      // documentation on barback and on transformers do not specify it.
  
      List<Asset> assets = await aggregateTransform.primaryInputs.toList();
  
  