anchor.diff:      function GetCount: SizeInt; override;
     public
       constructor Create(ACollection: TEnumerable<T>); overload;
  -    constructor Create(ACollection: TEnumerableWithPointers<T>); overload;
       destructor Destroy; override;
       procedure Enqueue(constref AValue: T);
       function Dequeue: T;
  
positive.code:     Add(LItem);
  end;
  
  constructor TList<T>.Create(ACollection: TEnumerableWithPointers<T>);
  var
    LItem: PT;
  begin
    Create;
    for LItem in ACollection.Ptr^ do
      Add(LItem^);
  end;
  
  destructor TList<T>.Destroy;
  begin
    SetCapacity(0);
  
negative.code:     constructor Create; overload;
      constructor Create(const AComparer: IComparer<T>); overload;
      constructor Create(ACollection: TEnumerable<T>); overload;
      destructor Destroy; override;
  
      function Add(constref AValue: T): SizeInt; virtual;
  