Function has_new_fatal_failure

tests/gtest/gtest.h:11825–11825

  ~HasNewFatalFailureHelper() override;
  void ReportTestPartResult(const TestPartResult& result) override;
  bool has_new_fatal_failure() const { return has_new_fatal_failure_; }
 private:
  bool has_new_fatal_failure_;
  TestPartResultReporterInterface* original_reporter_;