Adapt dev/base_include to new Declarations

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16251 85f007b7-540e-0410-9357-904b9bb8a0f7
remove a warning after Drop about print_hint_db

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16252 85f007b7-540e-0410-9357-904b9bb8a0f7
Minor cleanup around Term_typing

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16253 85f007b7-540e-0410-9357-904b9bb8a0f7