re PR fortran/18918 (Eventually support Fortran 2008's coarrays [co-arrays])

2010-04-06  Tobias Burnus  <burnus@net-b.de>

        PR fortran/18918
        * array.c (gfc_match_array_spec): Add error for -fcoarray=none.
        * match.c (gfc_match_critical, sync_statement): Ditto.
        * gfortran.h (gfc_fcoarray): New enum.
        (gfc_option_t): Use it.
        * lang.opt (fcoarray): Add new flag.
        * invoke.texi (fcoarray): Document it.
        * options.c (gfc_init_options,gfc_handle_option): Handle
        * -fcoarray=.
        (gfc_handle_coarray_option): New function.

2010-04-06  Tobias Burnus  <burnus@net-b.de>

        PR fortran/18918
        * gfortran.dg/coarray_2.f90: Add dg-options -fcoarray=single.
        * gfortran.dg/coarray_3.f90: Ditto.
        * gfortran.dg/coarray_4.f90: Ditto.
        * gfortran.dg/coarray_5.f90: Ditto.
        * gfortran.dg/coarray_6.f90: Ditto.
        * gfortran.dg/coarray_7.f90: Ditto.
        * gfortran.dg/coarray_8.f90: Ditto.
        * gfortran.dg/coarray_9.f90: New -fcoarray=none test.

From-SVN: r158016