in_worklist_     2297 src/hydrogen.cc   BitVector in_worklist_;
in_worklist_     2304 src/hydrogen.cc   if (in_worklist_.Contains(current->id())) return;
in_worklist_     2306 src/hydrogen.cc   in_worklist_.Add(current->id());
in_worklist_     2494 src/hydrogen.cc     in_worklist_.Remove(current->id());