make more groovish declarations

git-svn-id: https://svn/IT/az/groovy@23498 99cadc30-3bf9-11df-9bc1-510916f65ae8
mark as private methods, not used in tests

git-svn-id: https://svn/IT/az/groovy@23499 99cadc30-3bf9-11df-9bc1-510916f65ae8
make the same in other branches

git-svn-id: https://svn/IT/az/groovy@23500 99cadc30-3bf9-11df-9bc1-510916f65ae8
Merge remote-tracking branch 'remotes/git-svn'

merge from svn