[Bug fortran/29288] New: All intrinsics are allowed as actual arguments

["fxcoudert at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

(vaguely related to PR16580)

We're currently not checking if an intrinsic is allowed to be used as an actual
argument or not (and it's a regression wrt g77):

$ ifort a.f
fortcom: Error: a.f, line 2: This intrinsic procedure cannot be passed as an
actual argument.   [ICHAR]
      call BAR(ichar)
---------------^
compilation aborted for a.f (code 1)
$ pgf90 a.f
PGF90-S-0073-Intrinsic or predeclared, ichar, cannot be passed as an argument
(a.f: 2)
  0 inform,   0 warnings,   1 severes, 0 fatal for MAIN
$ gfortran a.f
/tmp/cckKTcIB.o(.text+0x5): In function `MAIN__':
: undefined reference to `specific__ichar_1'
/tmp/cckKTcIB.o(.text+0xa): In function `MAIN__':
: undefined reference to `bar_'
collect2: ld returned 1 exit status


-- 
           Summary: All intrinsics are allowed as actual arguments
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid, diagnostic
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: fxcoudert at gcc dot gnu dot org
OtherBugsDependingO 16580
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29288