anchor.diff:  import '../options.dart';
   import '../util/sink_adapter.dart';
   import '../world.dart';
  +import 'deferrable.dart';
   import 'serialization.dart';
   
   /// A data class holding some data [T] and the associated [DataSourceIndices].
  
positive.code:       });
      }
      return DeserializedCodegenResults(
          globalTypeInferenceResults, codegenInputs, results);
    }
  
    void _deserializeCodegenInput(
  
negative.code:       sink.writeMemberMap(
            results,
            (MemberEntity member, CodegenResult result) =>
                sink.writeDeferrable(() => result.writeToDataSink(sink)));
        sink.close();
      });
    }
  