simple-object-xcoff.c (simple_object_xcoff_find_sections): Search symbol table for .go_export symbol and apply pfn if found.

2017-06-07  Tony Reix  <tony.reix@atos.net>
            Matthieu Sarter  <matthieu.sarter.external@atos.net>
            David Edelsohn  <dje.gcc@gmail.com>

        * simple-object-xcoff.c (simple_object_xcoff_find_sections):
        Search symbol table for .go_export symbol and apply pfn if found.

Co-Authored-By: David Edelsohn <dje.gcc@gmail.com>
Co-Authored-By: Matthieu Sarter <matthieu.sarter.external@atos.net>

From-SVN: r248999