pgsql: Fix oversight in ALTER TYPE: typmodin/typmodout must propagate t

Fix oversight in ALTER TYPE: typmodin/typmodout must propagate to arrays.

If a base type supports typmods, its array type does too, with the
same interpretation. Hence changes in pg_type.typmodin/typmodout
must be propagated to the array type.

While here, improve AlterTypeRecurse to not recurse to domains if
there is nothing we'd need to change.

Oversight in fe30e7ebf. Back-patch to v13 where that came in.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/3d2376d55c6f2d364a6a1a95cc350c531f6d9423

Modified Files
--------------
src/backend/commands/typecmds.c | 63 +++++++++++++++++++++++++------
src/test/regress/expected/create_type.out | 16 ++++++++
src/test/regress/sql/create_type.sql | 8 ++++
3 files changed, 76 insertions(+), 11 deletions(-)