[Bug fortran/33234] Confusing diagnostic when passing intrinsic function as actual argument without INTRINSIC

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=33234

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|-stf=f* and passing         |Confusing diagnostic when
                   |intrinsic function as       |passing intrinsic function
                   |actual argument without     |as actual argument without
                   |INTRINSIC                   |INTRINSIC

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Since at least gfortran-4.5.4, compiling the following test with -Wall

      subroutine sub (proc, chr)
      external proc
      integer proc
      character*(*) chr
      if (proc (chr) .ne. 6) call abort ()
      end subroutine sub

      implicit none
      integer i
      i = len ("123")
      call sub (len, "abcdef")
      end

gives

      i = len ("123")
             1
Warning: Type specified for intrinsic function 'len' at (1) is ignored

This warning does not point to the actual problem, is confusing, and IMO should
be an error.