pg_identify_object_as_address() doesn't support pg_event_trigger oids

Hi,

Is $SUBJECT intentional, or would it be desirable to add support it?

Example:

SELECT * FROM pg_catalog.pg_event_trigger;
oid | evtname | evtevent | evtowner | evtfoid | evtenabled | evttags
-----------+---------------+-----------------+----------+-----------+------------+---------
289361636 | ddl_postgrest | ddl_command_end | 16696 | 289361635 | O |
(1 row)

SELECT * FROM pg_identify_object_as_address('pg_event_trigger'::regclass,289361636,0);
ERROR: requested object address for unsupported object class 32: text result "ddl_postgrest"

/Joel