pgsql-server: Desultory de-FastList-ification.

Log Message:
-----------
Desultory de-FastList-ification. RelOptInfo.reltargetlist is back to
being a plain List.

Modified Files:
--------------
pgsql-server/src/backend/optimizer/path:
allpaths.c (r1.116 -> r1.117)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/path/allpaths.c.diff?r1=1.116&r2=1.117)
costsize.c (r1.128 -> r1.129)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/path/costsize.c.diff?r1=1.128&r2=1.129)
pathkeys.c (r1.58 -> r1.59)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/path/pathkeys.c.diff?r1=1.58&r2=1.59)
pgsql-server/src/backend/optimizer/plan:
createplan.c (r1.171 -> r1.172)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/plan/createplan.c.diff?r1=1.171&r2=1.172)
initsplan.c (r1.100 -> r1.101)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/plan/initsplan.c.diff?r1=1.100&r2=1.101)
pgsql-server/src/backend/optimizer/util:
pathnode.c (r1.106 -> r1.107)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/util/pathnode.c.diff?r1=1.106&r2=1.107)
relnode.c (r1.58 -> r1.59)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/util/relnode.c.diff?r1=1.58&r2=1.59)
pgsql-server/src/include/nodes:
relation.h (r1.94 -> r1.95)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/nodes/relation.h.diff?r1=1.94&r2=1.95)