re PR c++/64422 (basic_string::erase is unresloved)

2015-01-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR libstdc++/64422
        * src/c++98/misc-inst.cc (string::erase): Add missing overloads.
        (string::insert): Likewise.
        (string::replace): Likewise.
        (wstring::erase): Likewise.
        (wstring::insert): Likewise.
        (wstring::replace): Likewise.
        * testsuite/21_strings/basic_string/modifiers/64422.cc: New testcase.

From-SVN: r219149