Re: master 5065698: Move the ‘declare’ form before the interactive spec in 10 functions.

[Juri Linkov]

>> Because I don't know what to give to the second arg FORM of
>> 'macroexp--warn-and-return'.
>
> I think `nil` is the right answer: the (unknown) declaration expands to `nil`.

`nil` doesn't output line numbers:

  (macroexp--warn-and-return
   (format-message "Warning: Unknown defun property `%S' in %S"
                   (car x) name)
   nil)

=>

    ELC      mh-e/mh-speed.elc
  Warning: Unknown defun property `ignore' in mh-speed-toggle
  Warning: Unknown defun property `ignore' in mh-speed-view