[Bug fortran/25059] New: better diagnostic needed

["jv244 at cam dot ac dot uk" <gcc-bugzilla at gcc dot gnu dot org>]

using GNU Fortran 95 (GCC) 4.1.0 20051126 (prerelease)  with '-g -pedantic
-std=f95', I get a bad / no diagnostic for the following invalid code:

MODULE M1
 TYPE T1
  INTEGER :: I
 END TYPE T1
 INTERFACE ASSIGNMENT(=)
   MODULE PROCEDURE S1
 END INTERFACE
CONTAINS
   SUBROUTINE S1(I,J)
     TYPE(T1), INTENT(OUT):: I
     TYPE(T1), INTENT(IN) :: J
     I%I=J%I**2
   END SUBROUTINE S1
END MODULE M1

USE M1
CONTAINS
PURE SUBROUTINE S2(I,J)
     TYPE(T1), INTENT(OUT):: I
     TYPE(T1), INTENT(IN) :: J
     I=J
END SUBROUTINE S2
END


-- 
           Summary: better diagnostic needed
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25059