'Fix internal error with docstrings containing non-ascii characters.'

def test_contains_unicode(self, testdir):

    testdir.makepyfile(u'\n                                                #    encoding:    utf-8\n                                                def    foo():\n                                                                """\n                                                                >>>    name    =    \'\u0441\'    #    not    letter    \'c\'    but    instead    Cyrillic    \'s\'.\n                                                                \'anything\'\n                                                                """\n                                ')
    result = testdir.runpytest('--doctest-modules')
    result.stdout.fnmatch_lines(['Got    nothing', '*    1    failed    in*'])
