Here I have added some more regression tests to improve the missing function coverage of
schemacmds.c, user.c and tablespace.c.
The added tests are mainly RENAME TO and OWNER TO support.
I've just had a look at both of these patches. All tests that have been added seem to cover new areas that are not previously tested, they also seem to cleanup properly after themselves, so I think these should be a worthwhile addition to the regression tests.
The only thing I can pickup on which is at fault is the the trailing white space