2011-01-14  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51816
        * module.c (read_module): Don't make nonexisting
        intrinsic operators as found.
        (rename_list_remove_duplicate): New function.
        (gfc_use_modules): Use it.

2011-01-14  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51816
        * gfortran.dg/use_18.f90: New.
        * gfortran.dg/use_19.f90: New.

From-SVN: r183179