bug#19645: 25.0.50; Recent EIEIO changes broke helm: Lisp error: (cl-no-next-method helm--setup-source...

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

Helm is working fine now, but now (even with your last changes) slime
seems broken:

Debugger entered--Lisp error: (args-out-of-range "" 0)
  help-function-arglist(#[257 "\300\207" ["(No location)"] 2 "(No location)\n\n(fn ##)"] preserve-names)
  eieio--defmethod(xref-location-group nil xref-bogus-location #[257 "\300\207" ["(No location)"] 2 "(No location)\n\n(fn ##)"])
  byte-code("\300\301\302\301\303\"\"\210\304\301\303\305\306$\210\300\307\302\307\303\"\"\210\304\307\303\305\310$\207" [eieio--defalias xref-location-marker eieio--defgeneric-init-form nil eieio--defmethod xref-bogus-location #[257 "\300\301\302\303\"\"\207" [user-error "%s" eieio-oref :message] 6 "\n\n(fn L)"] xref-location-group #[257 "\300\207" ["(No location)"] 2 "(No location)\n\n(fn ##)"]] 5)
  require(xref)
  byte-code("\300\301!\210\300\302!\210\300\303!\207" [require ring button xref] 2)
  require(etags)
  byte-code("\300\301\302\303#\210\300\304\305\306#\210\300\307\310\311#\210\312\313\314\"\210\312\315!\210\312\316!\210\312\317!\210\312\320!\210\312\321!\210\312\322!\210\312\323!\210\312\324!\207" [byte-code "\300\301\302\303#\207" [require cl-lib nil t] 4 "\300\301\302\"\207" [require cl-lib "lib/cl-lib"] 3 "\b\301W\205	\302\303!\207" [emacs-major-version 23 error "Slime requires an Emacs version of 23, or above"] 2 require hyperspec "lib/hyperspec" thingatpt comint pp easymenu outline arc-mode etags compile] 4)
  (slime-setup (quote (slime-fancy slime-asdf slime-tramp slime-banner slime-autodoc slime-xref-browser)))
  eval-buffer(#<buffer  *load*> nil "/home/thierry/.emacs.d/init.el" nil t)  ; Reading at buffer position 46238
  load-with-code-conversion("/home/thierry/.emacs.d/init.el" "/home/thierry/.emacs.d/init.el" t t)
  load("/home/thierry/.emacs.d/init" t t)
  #[0 "\b\205\262	\306=\203\0\307\b\310Q\202;	\311=\204\0\307\b\312Q\202;\313\307\314\315#\203*\316\202;\313\307\314\317#\203:\320\nB\321\202;\316\322\323\322\211#\210\v\322=\203a\324\325\326\307\b\327Q!\"\323\322\211#\210\v\322=\203`\x01\210\v\203\243\330\v!\331\232\203\243\332\v!\211\333P\334!\203}\211\202\210\334!\203\207\x01\202\210\314\262\x01\203\241\335\v\"\203\237\336\337\v#\210\340\341!\210\x13\266\f?\205\260\314\323\342\322\211#)\262\207" [init-file-user system-type delayed-warnings-list user-init-file inhibit-default-init inhibit-startup-screen ms-dos "~" "/_emacs" windows-nt "/.emacs" directory-files nil "^\\.emacs\\(\\.elc?\\)?$" "~/.emacs" "^_emacs\\(\\.elc?\\)?$" (initialization "`_emacs' init file is deprecated, please use `.emacs'") "~/_emacs" t load expand-file-name "init" file-name-as-directory "/.emacs.d" file-name-extension "elc" file-name-sans-extension ".el" file-exists-p file-newer-than-file-p message "Warning: %s is newer than %s" sit-for 1 "default"] 7]()
  command-line()
  normal-top-level()
 
-- 
Thierry
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