anchor.diff:  ///
   /// See https://cloud.google.com/storage/docs/accesscontrol for more details.
   abstract class AclScope {
  -  int? _cachedHashCode; // todo: late final
  -
     /// ACL type for scope representing a Google Storage id.
     static const int _TYPE_STORAGE_ID = 0;
   
  
positive.code: // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
  // for details. All rights reserved. Use of this source code is governed by a
  // BSD-style license that can be found in the LICENSE file.
  
  
  /// This library provides access to Google Cloud Storage.
  ///
  
negative.code:   }
  
    @override
    late final int hashCode = _jenkinsHash(_entries);
  
    @override
    bool operator ==(Object other) {
  