interface ILongBuffer extends IntSize, Iterable<Long>, ILongQueue, IntegrityCheckable {
  void add(long d);
  void addAll(Iterable<Long> l);
  long[] toArray();
  long get(int idx);
  void trimToSize();
  long popLast();
  long last();
  bool isEmpty();
  L<Long> asVirtualList();
  void insertAt(int idx, long[] l);
}

Began life as a copy of #1036281