search.c (check_final_overrider): Use inform instead of error for the diagnostics of the overridden functions.

2018-03-27  Volker Reichelt  <v.reichelt@netcologne.de>

        * search.c (check_final_overrider): Use inform instead of error
        for the diagnostics of the overridden functions.  Tweak wording.

        * g++.dg/cpp0x/defaulted2.C: Use dg-message instead of dg-error
        for the diagnostics of overridden functions.  Adjust for new wording.
        * g++.dg/cpp0x/implicit1.C: Likewise.
        * g++.dg/cpp0x/override1.C: Likewise.
        * g++.dg/cpp1y/auto-fn18.C: Likewise.
        * g++.dg/eh/shadow1.C: Likewise.
        * g++.dg/inherit/covariant12.C: Likewise.
        * g++.dg/inherit/covariant14.C: Likewise.
        * g++.dg/inherit/covariant15.C: Likewise.
        * g++.dg/inherit/covariant16.C: Likewise.
        * g++.dg/inherit/covariant22.C: Likewise.
        * g++.dg/inherit/crash3.C: Likewise.
        * g++.dg/inherit/error2.C: Likewise.
        * g++.dg/template/crash100.C: Likewise.
        * g++.old-deja/g++.eh/spec6.C: Likewise.
        * g++.old-deja/g++.mike/p811.C: Likewise.
        * g++.old-deja/g++.other/virtual11.C: Likewise.
        * g++.old-deja/g++.other/virtual4.C: Likewise.

From-SVN: r258898