godump.c (struct macro_hash_value): Define.

	* godump.c (struct macro_hash_value): Define.
	(macro_hash_hashval): New static function.
	(macro_hash_eq, macro_hash_del): New static functions.
	(go_define): Use macro_hash_value to store values in macro_hash.
	Replace an old value on a redefinition.  Don't print anything to
	go_dump_file.
	(go_undef): Delete the entry from the hash table.
	(go_output_typedef): For an enum, use macro_hash_value, and don't
	print anything to go_dump_file.
	(go_print_macro): New static function.
	(go_finish): Traverse macro_hash with go_print_macro.
	(dump_go_spec_init): Update macro_hash creation for
	macro_hash_value.

From-SVN: r180762