More tests

git-svn-id: http://h2database.googlecode.com/svn/trunk@5381 e6896862-9d19-0410-bfb3-e9fa5d50e656
Fix bug in DB2 syntax "select * from test with ur", patch from litailang

git-svn-id: http://h2database.googlecode.com/svn/trunk@5382 e6896862-9d19-0410-bfb3-e9fa5d50e656
Fix bug in DROP ALL OBJECTS when dealing with inter-schema dependencies.

git-svn-id: http://h2database.googlecode.com/svn/trunk@5383 e6896862-9d19-0410-bfb3-e9fa5d50e656