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.

src/test/regress/sql/errors.sql

@@ -9,9 +9,6 @@ select 1;
 --
 -- UNSUPPORTED STUFF
  
--- doesn't work 
--- attachas nonesuch
---
 -- doesn't work 
 -- notify pg_class
 --