abbrev = cu_header->dwarf2_abbrevs[hash_number];
abbrev = cu->dwarf2_abbrevs[hash_number];
dwarf2_lookup_abbrev (unsigned int number, struct dwarf2_cu *cu){  struct comp_unit_head *cu_header = &cu->header;  unsigned int hash_number;  struct abbrev_info *abbrev;  hash_number = number % ABBREV_HASH_SIZE;  abbrev = cu_header->dwarf2_abbrevs[hash_number];  while (abbrev)    {      if (abbrev->number == number)	return abbrev;      else	abbrev = abbrev->next;    }  return NULL;}