[Bug ada/16094] New: Illegal program not detected, RM 3.4.1(5)

["ludovic dot brenta at insalien dot org" <gcc-bugzilla@gcc.gnu.org>]

--  RM 3.4.1(5)
--  Class-wide types have no primitive subprograms of their own.
--  (see also AC-00086 at:
--  http://www.ada-auth.org/cgi-bin/cvsweb.cgi/AIs/AC-00086.TXT )
package Test_248678 is
   generic
      type T1(<>) is private;
      with function "=" (Left, Right : T1) return Boolean is <>;
   package pak1 is
   end pak1;

   package pak2 is
      type T2 is abstract tagged null record;
      package new_pak1 is new pak1 (T2'Class);  --ERROR: no matching "="
   end pak2;
end Test_248678;


I expect error messages like:
test_248678.ads:14:07: missing actual for instantiation of ""=""
test_248678.ads:14:07: instantiation abandoned
gnatmake: "test_248678.ads" compilation error


Instead the compiler remains silent.

-- 
           Summary: Illegal program not detected, RM 3.4.1(5)
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ludovic dot brenta at insalien dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16094