More collations cleanup, from trawling for missed collation assignments.

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

Commit: 0c9d9e8dd655fff7bcfc401e82838b8c20c16939
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2011-03-26T20:35:25Z
Releases: 9.1.0
More collations cleanup, from trawling for missed collation assignments.

Mostly cosmetic, though I did find that generateClonedIndexStmt failed
to clone the index's collations.

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