* lisp/emacs-lisp/eieio-base.el: Use lexical-binding and cl-lib.
* lisp/emacs-lisp/eieio-core.el: Use lexical-binding and cl-lib.
(list-of): New type.
(eieio--typep): Remove.
(eieio-perform-slot-validation): Use cl-typep instead.
* lisp/emacs-lisp/eieio.el: Use lexical-binding drop non-GV fallback.
(defclass, defgeneric, defmethod): Add doc-string position.
(with-slots): Require cl-lib.
* lisp/emacs-lisp/cl-macs.el (cl--make-type-test): Avoid ((lambda ..) ..).