Get rid of "shouldfail" subdirectory by moving tests to parent directory.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16796 85f007b7-540e-0410-9357-904b9bb8a0f7
Get rid of "shouldsucceed" subdirectory by moving tests to parent directory.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16797 85f007b7-540e-0410-9357-904b9bb8a0f7