Log Message:
-----------
Do not use ICONST/SCONST in rules other than Iconst/Sconst.
Modified Files:
--------------
pgsql/src/backend/parser:
gram.y (r2.635 -> r2.636)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/gram.y?r1=2.635&r2=2.636)