[boost] [Concept Checking] function_requires

Hi all, as far as I understand http://www.boost.org/doc/libs/1_48_0/libs/concept_check/reference.htm#deprec..., function_requires() is deprecated. However, the documentation does not mention very clearly how to replace it. Is the BOOST_CONCEPT_ASSERT macro the replacement? E.g., does function_requires< VertexListGraphConcept<Graph> >(); now become BOOST_CONCEPT_ASSERT((VertexListGraphConcept<Graph>)); function_requires still appears in a lot of test cases of the Graph library. So if it is that easy to change, I would hand in a patch. Best regards, Jens