message: Document HashTable::BinSize()
diff: @@ -214,7 +214,8 @@ protected:
  inline void CheckRehash();
  void DoRehash();
  - int BinSize(int id) const;
  + /// Return the size of bin 'idx'
  + int BinSize(int idx) const;
  };
  @@ -656,13 +657,13 @@ void HashTable<T>::PrintMemoryDetail() const
  }
  template<typename T>
  -int HashTable<T>::BinSize(int id) const
  +int HashTable<T>::BinSize(int idx) const
  {
  int count = 0;
  - while (id >= 0)
  + while (idx >= 0)
  {
  - const T& item = Base::At(id);
  - id = item.next;
  + const T& item = Base::At(idx);
  + idx = item.next;
  count++;
  }
  return count;
  