pgsql: This patch updates the regression tests to allow "make

Log Message:
-----------
This patch updates the regression tests to allow "make installcheck" to
pass if "default_with_oids" is set to false. I took the approach of
explicitly adding WITH OIDS to the CREATE TABLEs where necessary, rather
than tweaking the default_with_oids GUC var.

Modified Files:
--------------
pgsql/src/test/regress/expected:
alter_table.out (r1.85 -> r1.86)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/alter_table.out.diff?r1=1.85&r2=1.86)
copy2.out (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/copy2.out.diff?r1=1.19&r2=1.20)
create_table.out (r1.12 -> r1.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/create_table.out.diff?r1=1.12&r2=1.13)
errors.out (r1.48 -> r1.49)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/errors.out.diff?r1=1.48&r2=1.49)
pgsql/src/test/regress/sql:
alter_table.sql (r1.47 -> r1.48)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/alter_table.sql.diff?r1=1.47&r2=1.48)
copy2.sql (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/copy2.sql.diff?r1=1.10&r2=1.11)
create_table.sql (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/create_table.sql.diff?r1=1.7&r2=1.8)
errors.sql (r1.11 -> r1.12)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/errors.sql.diff?r1=1.11&r2=1.12)