pgsql: Use DECLARE_TOAST_WITH_MACRO() to simplify toast-table declarati

Use DECLARE_TOAST_WITH_MACRO() to simplify toast-table declarations.

This is needed so that renumber_oids.pl can handle renumbering
shared catalog declarations, which need to provide C macros for
the OIDs of the shared toast table and index. The previous
method of writing a C macro separately was error-prone anyway.

Also teach renumber_oids.pl about DECLARE_UNIQUE_INDEX_PKEY,
as we missed doing when inventing that macro.

There are no changes to postgres.bki here, so no need for a
catversion bump.

Discussion: https://postgr.es/m/2995325.1650487527@sss.pgh.pa.us

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/40eba064b24d98e343b45ccef6907fe8c9784dc1

Modified Files
--------------
src/backend/catalog/Catalog.pm | 11 +++++++++++
src/backend/catalog/genbki.pl | 10 ++++++++++
src/include/catalog/genbki.h | 6 +++++-
src/include/catalog/pg_authid.h | 4 +---
src/include/catalog/pg_database.h | 4 +---
src/include/catalog/pg_db_role_setting.h | 4 +---
src/include/catalog/pg_parameter_acl.h | 4 +---
src/include/catalog/pg_replication_origin.h | 4 +---
src/include/catalog/pg_shdescription.h | 4 +---
src/include/catalog/pg_shseclabel.h | 4 +---
src/include/catalog/pg_subscription.h | 4 +---
src/include/catalog/pg_tablespace.h | 4 +---
src/include/catalog/renumber_oids.pl | 27 +++++++++++++++++++++++----
13 files changed, 58 insertions(+), 32 deletions(-)