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