Reduced:
(defun foo () (macrolet ((x (&rest args) (declare (ignore args)) a)) (let (a) (declare (type vector a)) (x #.#'list))))
Reduced:
(defun foo ()
(declare (ignore args))
(macrolet ((x (&rest args)
a))
(let (a)
(declare (type vector a))
(x #.#'list))))