* eieio-core.el (eieio--full-class-object): New function.

* eieio-core.el (eieio--full-class-object): New function.

Rather than explicitly call eieio-class-un-autoload, the autoloading is
now performed on-demand if you use eieio--full-class-object.

* lisp/emacs-lisp/eieio-core.el (eieio-class-un-autoload): Remove.
(eieio--full-class-object): New function, to replace it.
(eieio-oref, eieio--class-precedence-list):
* lisp/emacs-lisp/eieio-base.el (eieio-persistent-convert-list-to-object):
Use it instead of eieio-class-un-autoload.
* lisp/emacs-lisp/eieio.el (eieio-class-parents, child-of-class-p):
Load the class if needed.