Type name is part of the type declaration record.

git-svn-id: http://caml.inria.fr/svn/ocaml/branches/extension_points@13356 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Name is part of the value_description record.

git-svn-id: http://caml.inria.fr/svn/ocaml/branches/extension_points@13357 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02