* lisp/emacs-lisp/eieio-core.el (class): Rename field symbol-obarray to
symbol-hashtable. It contains a hashtable instead of an obarray.
(generic-p): Use symbol property `eieio-method-hashtable' instead of
`eieio-method-obarray'.
(generic-primary-only-p, generic-primary-only-one-p):
Slight optimization.
(eieio-defclass-autoload-map): Use a hashtable instead of an obarray.
(eieio-defclass-autoload, eieio-defclass): Adjust/simplify accordingly.
(eieio-class-un-autoload): Use autoload-do-load.
(eieio-defclass): Use dolist, cl-pushnew, cl-callf.
Use new cl-deftype-satisfies. Adjust to use of hashtables.
Don't hardcode the value of eieio--object-num-slots.
(eieio-defgeneric-form-primary-only-one): Remove `doc-string' arg.
Use a closure rather than a backquoted lambda.
(eieio--defmethod): Adjust call accordingly. Set doc-string via the
function-documentation property.
(eieio-slot-originating-class-p, eieio-slot-name-index)
(eieiomt--optimizing-hashtable, eieiomt-install, eieiomt-add)
(eieio-generic-form): Adjust to use of hashtables.
(eieiomt--sym-optimize): Rename from eieiomt-sym-optimize; take
additional class argument.
(eieio-generic-call-methodname): Remove, unused.
* lisp/emacs-lisp/eieio-custom.el: Use lexical-binding.
(eieio-object-value-to-abstract): Simplify.
* lisp/emacs-lisp/eieio-datadebug.el: Use lexical-binding.
* lisp/emacs-lisp/eieio-opt.el (eieio-build-class-list): Use cl-mapcan.
(eieio-build-class-alist): Use dolist.
(eieio-all-generic-functions): Adjust to use of hashtables.
* lisp/emacs-lisp/eieio.el (child-of-class-p): Fix case where `class' is
`eieio-default-superclass'.
* test/automated/eieio-test-methodinvoke.el (eieio-test-method-store):
Remove use of eieio-generic-call-methodname.
(eieio-test-method-order-list-3, eieio-test-method-order-list-6)
(eieio-test-method-order-list-7, eieio-test-method-order-list-8):
Adjust the expected result accordingly.
* lisp/emacs-lisp/eieio-base.el (eieio-persistent-slot-type-is-class-p):
Prefer \' to $.
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