fixes to tautological-compare warnings

git-svn-id: svn+ssh://portal-auth.nersc.gov/project/projectdirs/visit/svn/visit/trunk/src@23668 18c085ea-50e0-402c-830e-de6fd14e8384
fixing compilation warning fixes

git-svn-id: svn+ssh://portal-auth.nersc.gov/project/projectdirs/visit/svn/visit/trunk/src@23669 18c085ea-50e0-402c-830e-de6fd14e8384
warning-removal cleanup for auto-generated python files

git-svn-id: svn+ssh://portal-auth.nersc.gov/project/projectdirs/visit/svn/visit/trunk/src@23670 18c085ea-50e0-402c-830e-de6fd14e8384