* mln/core/concept/proxy.hxx
	(internal::helper_unproxy_rec< P, true >::P_)
	(internal::helper_unproxy_rec< const P, true >::P_):
	Remove these intermediate typedefs...
	(internal::helper_unproxy_rec< P, true >::ret)
	(internal::helper_unproxy_rec< const P, true >::ret):
	...to inline these definitions.
	* mln/util/array.hh
	(internal::subject_impl<util::array<T>&, E>::operator())
	(internal::subject_impl<util::array<T>&, E>::operator[])
	(internal::subject_impl<const util::array<T>&, E>::operator() const)
	(internal::subject_impl<const util::array<T>&, E>::operator[] const):
	* mln/core/site_set/p_graph_piter.hh
	(internal::subject_impl< const p_graph_piter<S,I>&, E >::graph):
	Use the exact same return type as in the declaration.