comment out Ctype.local_non_recursive_abbrev

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14789 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Fix PR#6410: Error message for an attempt to use a functor as a module is confusing

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14790 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02