handle two way lookup
handle two way lookup


Former-commit-id: 18140f5b26887932c6f523daf54f236e74725d0c [formerly 998988ad45093ff53a4ef300cec25aa521dad78c]
Former-commit-id: 523598bfa7cb73309c69d1c02cd0e4aa8d8cb760
torhve/ivar2,haste/ivar2,torhve/ivar2,torhve/ivar2