There's still a failure in the pg_upgrade TAP test. One seems to be ordering, so perhaps we need to ORDER BY the attribute number. Others seem to be missing relstats and I'm not sure why yet. I suggest doing some manual pg_upgrade tests and comparing the before/after dumps to see if you can reproduce a smaller version of the problem.
That's fixed in my current working version, as is a tsvector-specific issue. Working on the TAP issue.
