[Bug fortran/52325] New: unclear error: Unclassifiable statement

["kloedej at knmi dot nl" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52325

             Bug #: 52325
           Summary: unclear error: Unclassifiable statement
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: kloedej@knmi.nl


The given example code generates this error:

   unclassifiable.F90:9.4:

       cc%a = 1
       1
   Error: Unclassifiable statement at (1)


while in fact it would be much more helpfull if the error would clearly state
that the symbol is not yet defined (as the commented out lines do):

   unclassifiable.F90:16.5:
       d=1
        1
   Error: Symbol 'd' at (1) has no IMPLICIT type

Especially in larger modules/programs having a clear error in case of this kind
of variable naming msitakes/typos could save a lot of debugging time for
gfortran users.

Example code:

module test_unclassifiable
  implicit none
  type test
     integer :: a
  end type test
contains
  subroutine test_sub1(c)
    type(test), intent(out) :: c
    cc%a = 1
  end subroutine test_sub1
!  subroutine test_sub2(c)
!    integer :: c
!    d=1
!  end subroutine test_sub2
end module test_unclassifiable