[HACKERS] fresh regression - regproc result contains unwanted schema

when I fixed old bug of plpgsql_check I found new regression of regproc output.

set check_function_bodies TO off;

postgres=# create or replace function f1() returns int as $$ begin end $$ language plpgsql;
CREATE FUNCTION
postgres=# select 'f1()'::regprocedure::oid::regproc;
 regproc
---------
 f1
(1 row)

postgres=# create or replace function f1(int) returns int as $$ begin end $$ language plpgsql;
CREATE FUNCTION
postgres=# select 'f1()'::regprocedure::oid::regproc;
  regproc 
-----------
 public.f1
(1 row)