Same as bfr-to-param-space for BDDs, but don't bother to do anything if we're working with AIGs.
(bfr-to-param-space-weak p x) → *
Function:
(defun bfr-to-param-space-weak (p x) (declare (xargs :guard t)) (let ((__function__ 'bfr-to-param-space-weak)) (declare (ignorable __function__)) (bfr-case :bdd (acl2::to-param-space p x) :aig x)))