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Xi Ge
aeb43916cd
A completion-handler method carrying an availability attribute was skipped when wiring the rename attribute that points to its async alternative, so an async @objc @implementation member could not match its completion-handler requirement and no ObjC thunk was generated as a result. This narrows the guard to methods that already carry a rename, checking their availability attributes syntactically. Resolving the async alternative here would trigger name lookup and re-enter member loading while the nominal is still importing, corrupting its member lookup table.