ToLowerRuneLatin1  416 third_party/re2/re2/prefilter.cc   info->exact_.insert(RuneToStringLatin1(ToLowerRuneLatin1(r)));
ToLowerRuneLatin1  471 third_party/re2/re2/prefilter.cc         a->exact_.insert(RuneToStringLatin1(ToLowerRuneLatin1(r)));