`TLazRoundBufferListObjBase`
pt		InternalMoveUp
pt		InternalMoveDown
pt		GrowCapacity
pt		ShrinkCapacity
pt		SetCapacityEx
pt		InsertRowsEx
pt		DeleteRowsEx
		Create
		Destroy
		InsertRows
		DeleteRows
		MoveRows
		SwapEntries
		DebugDump