Re:completion-all-completions not backward compatible? 3 messages

[T. V. Raman]

Stephane, 

I call completion-all-completions in my code that implements
Google Suggest  as minibuffer completion for instance, see 
http://emacspeak.googlecode.com/svn/trunk/lisp/g-client/gweb.el

Also, the breakage appears much worse than I earlier suspected --
right now,  doing describe-function, typing next- and hitting tab
throws the folowing backtrace.
Debugger entered--Lisp error: (wrong-number-of-arguments (5 . 5) 4)
  completion-all-completions("next-" [By\ Lines :auto-preamble 
vm-menu-create-subject-virtual-folder vm-toolbar-print-button 
emacspeak-websearch-recorded-books-advanced-form block-comment-end :current 
mark-islamic-calendar-date-pattern :capabilities dictionary-google 
emacspeak-eterm-speak-cursor debugger-frame 
emacspeak-url-template-documentation vm-mime-auto-save-all-attachments-subdir 
local-date term-send-invisible emacspeak-imenu-flatten-index-alist 
emacspeak-wizards-ppt-mode-syntax-table \.html w-area 4x\ Smaller 
term-terminal-menu foldoc rowend emacspeak-url-template-help-internal id2606529 
vm-forget-composition-buffer Add\ Label mc-read-mode-string url-http-proxy 
terminal-pager-enable l-opt undelete __nested_tables vm-menu-undo-menu 
term-ansi-current-underline dabbrev--last-obarray 
vm-mail-prompt-if-subject-empty lc-input types-alist 
emacspeak-eterm-define-window Take\ Action\ on\ MIME\ body\ \.\.\. gbw 
term-previous-matching-input-from-input vm-visit-virtual-folder-same-author 
friends_count mbEnd fll dabbrev--try-find term-ansi-default-program ...] 
fboundp 5)
  minibuffer-completion-help()
  completion--do-completion()
  ad-Orig-minibuffer-complete()
  minibuffer-complete()
  call-interactively(minibuffer-complete nil nil)
  completing-read-default("Describe function: " [By\ Lines :auto-preamble 
vm-menu-create-subject-virtual-folder vm-toolbar-print-button 
emacspeak-websearch-recorded-books-advanced-form block-comment-end :current 
mark-islamic-calendar-date-pattern :capabilities dictionary-google 
emacspeak-eterm-speak-cursor debugger-frame 
emacspeak-url-template-documentation vm-mime-auto-save-all-attachments-subdir 
local-date term-send-invisible emacspeak-imenu-flatten-index-alist 
emacspeak-wizards-ppt-mode-syntax-table \.html w-area 4x\ Smaller 
term-terminal-menu foldoc rowend emacspeak-url-template-help-internal id2606529 
vm-forget-composition-buffer Add\ Label mc-read-mode-string url-http-proxy 
terminal-pager-enable l-opt undelete __nested_tables vm-menu-undo-menu 
term-ansi-current-underline dabbrev--last-obarray 
vm-mail-prompt-if-subject-empty lc-input types-alist 
emacspeak-eterm-define-window Take\ Action\ on\ MIME\ body\ \.\.\. gbw 
term-previous-matching-input-from-input vm-visit-virtual-folder-same-author 
friends_count mbEnd fll dabbrev--try-find term-ansi-default-program ...] 
fboundp t nil nil nil nil)
  completing-read("Describe function: " [By\ Lines :auto-preamble 
vm-menu-create-subject-virtual-folder vm-toolbar-print-button 
emacspeak-websearch-recorded-books-advanced-form block-comment-end :current 
mark-islamic-calendar-date-pattern :capabilities dictionary-google 
emacspeak-eterm-speak-cursor debugger-frame 
emacspeak-url-template-documentation vm-mime-auto-save-all-attachments-subdir 
local-date term-send-invisible emacspeak-imenu-flatten-index-alist 
emacspeak-wizards-ppt-mode-syntax-table \.html w-area 4x\ Smaller 
term-terminal-menu foldoc rowend emacspeak-url-template-help-internal id2606529 
vm-forget-composition-buffer Add\ Label mc-read-mode-string url-http-proxy 
terminal-pager-enable l-opt undelete __nested_tables vm-menu-undo-menu 
term-ansi-current-underline dabbrev--last-obarray 
vm-mail-prompt-if-subject-empty lc-input types-alist 
emacspeak-eterm-define-window Take\ Action\ on\ MIME\ body\ \.\.\. gbw 
term-previous-matching-input-from-input vm-visit-virtual-folder-same-author 
friends_count mbEnd fll dabbrev--try-find term-ansi-default-program ...] 
fboundp t nil nil nil)
  byte-code("\302 \303\304
\304\262\305\203\306\307\"\202\310   
\311\303\304\211       
\205$\312\n!&\262
\211\313\232\2032\2025\314
!)C\207" 
[enable-recursive-minibuffers obarray function-called-at-point t nil 
completing-read format "Describe function (default %s): " "Describe function: " 
fboundp symbol-name "" intern] 12)
  call-interactively(describe-function nil nil)