Silence useless new GCC 4.3 warnings, mostly on "confusing precedence" of && and ||, which is as confusing as the precedence for * and +.
Still to be fixed: warnings in generated dictionaries.


git-svn-id: http://root.cern.ch/svn/root/trunk@23409 27541ba8-7e3a-0410-8455-c3a389f83636