NumCapturesWalker  520 third_party/re2/re2/regexp.cc   DISALLOW_EVIL_CONSTRUCTORS(NumCapturesWalker);
NumCapturesWalker  524 third_party/re2/re2/regexp.cc   NumCapturesWalker w;
NumCapturesWalker  367 third_party/re2/re2/regexp.h   friend class NumCapturesWalker;