pgsql-server: Minor catalog cleanups for composite-type stuff.

Log Message:
-----------
Minor catalog cleanups for composite-type stuff.  Adjust signatures shown
in pg_proc for record_in, record_out, etc to reflect that these routines
now make use of the second OID parameter.  Remove the ancient SET entry
in pg_type, which is now highly unlikely to ever become used again.
Adjust type_sanity regression test to match.

Modified Files:
--------------
    pgsql-server/src/include/catalog:
        catversion.h (r1.233 -> r1.234)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/catalog/catversion.h.diff?r1=1.233&r2=1.234)
        pg_proc.h (r1.334 -> r1.335)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/catalog/pg_proc.h.diff?r1=1.334&r2=1.335)
        pg_type.h (r1.152 -> r1.153)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/catalog/pg_type.h.diff?r1=1.152&r2=1.153)
    pgsql-server/src/test/regress/expected:
        type_sanity.out (r1.21 -> r1.22)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/type_sanity.out.diff?r1=1.21&r2=1.22)
    pgsql-server/src/test/regress/sql:
        type_sanity.sql (r1.21 -> r1.22)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/sql/type_sanity.sql.diff?r1=1.21&r2=1.22)