pgsql: Convert a few more datatype input functions to report errors sof

Convert a few more datatype input functions to report errors softly.

Convert assorted internal-ish datatypes, namely aclitemin,
int2vectorin, oidin, oidvectorin, pg_lsn_in, pg_snapshot_in,
and tidin to the new style.

(Some others you might expect to find in this group, such as
cidin and xidin, need no changes because they never throw
errors at all.  That seems a little cheesy ... but it is not in
the charter of this patch series to add new error conditions.)

Amul Sul, minor mods by me

Discussion: https://postgr.es/m/CAAJ_b97KeDWUdpTKGOaFYPv0OicjOu6EW+QYWj-Ywrgj_aEy1g@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/47f3f97fcdee28e3eb70cd2ebfd7b4899570b018

Modified Files
--------------
src/backend/utils/adt/acl.c              | 62 +++++++++++++++++++++++---------
src/backend/utils/adt/int.c              |  9 ++---
src/backend/utils/adt/oid.c              | 37 +++++++++++++------
src/backend/utils/adt/pg_lsn.c           |  2 +-
src/backend/utils/adt/tid.c              |  9 ++---
src/backend/utils/adt/xid8funcs.c        |  7 ++--
src/test/regress/expected/int2.out       | 19 ++++++++++
src/test/regress/expected/oid.out        | 62 ++++++++++++++++++++++++++++++++
src/test/regress/expected/pg_lsn.out     | 13 +++++++
src/test/regress/expected/privileges.out | 43 ++++++++++++++++++++++
src/test/regress/expected/tid.out        | 25 +++++++++++++
src/test/regress/expected/xid.out        | 31 ++++++++++++++++
src/test/regress/sql/int2.sql            |  5 +++
src/test/regress/sql/oid.sql             | 14 ++++++++
src/test/regress/sql/pg_lsn.sql          |  4 +++
src/test/regress/sql/privileges.sql      |  9 +++++
src/test/regress/sql/tid.sql             |  6 ++++
src/test/regress/sql/xid.sql             |  7 ++++
18 files changed, 323 insertions(+), 41 deletions(-)