kFbNone          1709 third_party/re2/re2/dfa.cc     info->firstbyte = kFbNone;
kFbNone          1716 third_party/re2/re2/dfa.cc     info->firstbyte = kFbNone;	// will be ignored
kFbNone          1723 third_party/re2/re2/dfa.cc   int firstbyte = kFbNone;
kFbNone          1735 third_party/re2/re2/dfa.cc     if (firstbyte == kFbNone) {