bug#9661: 24.0.90; language-info-custom-alist defcustom

[Stefan Monnier]

> 5. Type ESC TAB, which should pop up a list of completions; instead:
> => An error is signalled: "completion--some: Invalid function:
> (apply-partially (function completion-table-case-fold)
> language-info-alist)"

Thanks.  There were two problems:
- the immediate one was that `apply-partially' was used in data and hence
  never called (it needed an "unquote" comma just in front).
- after fixing it the new problem was that the constructed completion
  tables stored the value of language-info-alist at the time
  mule-cmds.el is loaded rather than at the time the user hits M-TAB.
So I've installed a slightly different patch to yours which goes a bit
further than yours.  Should be fixed now,


        Stefan