number_of_weak_calls_ 2193 test/cctest/test-api.cc   void increment() { number_of_weak_calls_++; }
number_of_weak_calls_ 2194 test/cctest/test-api.cc   int NumberOfWeakCalls() { return number_of_weak_calls_; }
number_of_weak_calls_ 2197 test/cctest/test-api.cc   int number_of_weak_calls_;