From  Giovanni Bajo  <giovannibajo@libero.it>
cp:
       PR c++/8266
        * pt.c (check_explicit_specialization): When looking up a
        template function from an identifier outside class-scope, bind
        it to CP_DECL_CONTEXT.
testsuite:
        PR c++/8266
        * g++.dg/template/explicit-instantiation3.C: New test.

From-SVN: r68527