* elfxx-ia64.c: Include objalloc.h, hashtab.h.

	* elfxx-ia64.c: Include objalloc.h, hashtab.h.
	(struct elfNN_ia64_local_hash_entry): Remove root. Add id and r_sym
	fields.
	(struct elfNN_ia64_local_hash_table): Remove.
	(struct elfNN_ia64_link_hash_table): Change loc_hash_table's type
	to htab_t.  Add loc_hash_memory field.
	(elfNN_ia64_local_hash_table_init, elfNN_ia64_new_loc_hash_entry):
	Removed.
	(elfNN_ia64_local_htab_hash, elfNN_ia64_local_htab_eq): New
	functions.
	(elfNN_ia64_hash_table_create): Use hashtab.h hashtable for
	loc_hash_table.  Initialize loc_hash_memory.
	(elfNN_ia64_hash_table_free): New function.
	(elfNN_ia64_local_hash_lookup): Remove.
	(elfNN_ia64_local_dyn_sym_thunk): Change into htab_traverse
	callback.
	(elfNN_ia64_dyn_sym_traverse): Use htab_traverse.
	(get_local_sym_hash): Use hashtab.h hashtable for loc_hash_table.
	(bfd_elfNN_bfd_link_hash_table_free): Define.