[boost] [parameter] #line markers in literate tests

Is there any logical reason for the #line markers in the source files for the 'literal' tests in Boost parameter ? VC++ will not compile these tests with them and although they appear to me as completely valid C++ I would like to create a pull request to fix the VC++ problem. If there is no reason for the #line markers I can remove them, else I can wrap in "#if !defined(BOOST_MSVC)/#endif" pairs after including boost/config.h.