Provide plpgsql tests for cases involving record field changes.

We suppressed one of these test cases in commit feb1cc559 because
it was failing to produce the expected results on CLOBBER_CACHE_ALWAYS
buildfarm members.  But now we need another test with similar behavior,
so let's set up a test file that is expected to vary between regular and
CLOBBER_CACHE_ALWAYS cases, and provide variant expected files.

Someday we should fix plpgsql's failure for change-of-field-type, and
then the discrepancy will go away and we can fold these tests back
into plpgsql_record.sql.  But today is not that day.

Discussion: https://postgr.es/m/87wotkfju1.fsf@news-spur.riddles.org.uk

0 files changed, 0 insertions, 0 deletions