`declare-function' not needed anymore? (was: Re: lexical/static let-closure now reachable from interactive spec!)

[Emanuel Berg]

> (require 'cl-lib)
>
> (let ((min-def 0)
>       (max-def 9)
>       (inc-def 1) )
>   (defun interval (&optional min max inc)
>     (interactive (list (read-number "min: " min-def)
>                        (read-number "max: " max-def)
>                        (read-number "inc: " inc-def)) )
>     (or min (setq min min-def))
>     (or max (setq max max-def))
>     (or inc (setq inc inc-def))
>     (unless (<= min max)
>       (error "Bogus interval") )
>     (unless (> inc 0)
>       (error "Bogus increment") )
>     (cl-loop for i from min to max by inc collect i) )
>   (declare-function interval nil) )

I think that `declare-function' is also not needed anymore?

It's there to shut the byte-compiler up that the function
isn't known to be defined, but now it doesn't say that so the
ugly `declare-function' (even more so with the trailing nil)
can be removed ...

Only 33 places to do that for me ...

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