Clean up various minor irregularities detected by type_sanity

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

Commit: 8a3ef74b7c58f6291239caa6404757b6eb2ffc74
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 1999-03-28T02:01:39Z
Releases: 7.1.1
Clean up various minor irregularities detected by type_sanity
and newly expanded opr_sanity tests.

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