keyword and parse from PostgreSQL file.

Hi Dave.

keywords.h and parse.h is seems to be old for a moment.
It seems to have to reform this version...
Is it unquestionable for EDB?

keywords.c
gram.y(109) : error C2061: [snip] 'ContainsOids' [snip].
gram.y(131) : error C2059:
y.tab.h(771) : error C2061:
y.tab.h(771) : error C2059:

my target version was 8.2.3.

Regards,
Hiroshi Saito