Recognizer for atc-var-info-option structures.
(atc-var-info-optionp x) → *
Function:
(defun atc-var-info-optionp (x) (declare (xargs :guard t)) (let ((__function__ 'atc-var-info-optionp)) (declare (ignorable __function__)) (cond ((not x) (b* nil t)) (t (b* ((fty::val x)) (atc-var-infop fty::val))))))