Add ORDER BY to more ICU regression test cases.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 8994cc6ffc8828569a39139996a0b0b8348ca036
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2019-03-26T21:46:04Z
Releases: 12.0
Add ORDER BY to more ICU regression test cases.

Commit c77e12208 didn't fully fix the problem.  Per buildfarm
and local testing.

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