anchor.diff:    bool get hasBeenPublished => currentVersions.hasBeenPublished;
   
     bool get newReleaseRequired => newReleaseVersion is Some;
  -
  -  ProjectReleaseVersions(this.currentVersions, this.newReleaseVersion);
  -}
  +}
  
positive.code:     final Option<Version> releaseVersionOpt = await _getReleaseVersion(
          currentProjectVersions, autoUpdateHostedVersions, type);
  
      return new ProjectReleaseVersions(currentProjectVersions, releaseVersionOpt);
    }
  
    Future<Option<Version>> _getReleaseVersion(ProjectVersions currentVersions,
  
negative.code:   final ProjectVersions currentVersions;
    final Option<Version> newReleaseVersion;
  
    ProjectReleaseVersions(this.currentVersions, this.newReleaseVersion);
  
    @override
    Version get pubspecVersion => currentVersions.pubspecVersion;
  
  