- mlc/implies.hh: New file.
- mlc/is_a.hh: Update.
- mlc/comma.hh: New file.
- mlc/typedef.hh (in_, in_onlyif_): Rename as...
(from_, from_only_if_): ...this.
(mlc_typedef_in, mlc_typedef_in_): New macros.
(mlc_ret): New macro.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@394 4aad255d-cdde-0310-9447-f3009e2ae8c0