anchor.diff:        bool indexed: false,
         bool nullable: false,
         bool includedInDefaultResultSet: true,
  -      bool autoincrement: false,
  -      Type underlyingType})
  +      bool autoincrement: false})
         : isUnique = unique,
           isIndexed = indexed,
           isNullable = nullable,
  
positive.code:             indexed: indexed,
              nullable: nullable,
              includedInDefaultResultSet: includedInDefaultResultSet,
              autoincrement: autoincrement,
              underlyingType: underlyingType);
  
    /// Whether or not this attribute is the primary key for its [ManagedEntity].
    ///
  
negative.code:       bool indexed: false,
        bool nullable: false,
        bool includedInDefaultResultSet: true,
        bool autoincrement: false})
        : isPrimaryKey = primaryKey,
          this.defaultValue = defaultValue,
          this.transientStatus = transientStatus,
  