pgsql: Get rid of redundant production in plpgsql grammar.

Get rid of redundant production in plpgsql grammar.

There may once have been a reason for the intermediate proc_stmts
production in the plpgsql grammar, but it isn't doing anything useful
anymore, so let's collapse it into proc_sect. Saves some code and
probably a small number of nanoseconds per statement list.

In passing, correctly alphabetize keyword lists to match pl_scanner.c;
note that for "rowtype" vs "row_count", pl_scanner.c must sort on the
basis of the lower-case spelling.

Noted while fooling with a patch to de-reserve more plpgsql keywords.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/e2dc3f57726199408902ba87eaaf7b95d1223744

Modified Files
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src/pl/plpgsql/src/pl_gram.y | 32 +++++++++++---------------------
1 file changed, 11 insertions(+), 21 deletions(-)