bug#25026: 25.1; Add missing (provide 'isearch)

[Damien Cassou]

Richard Stallman <rms@gnu.org> writes:
> Why have a feature symbol for a preloaded file?
> Is there a reason why it would actually be useful>?

As a user, I can make some code depend on isearch begin loaded
(`eval-after-load') without having to know if isearch is preloaded or
not. Isearch being preloaded seems to be an implementation detail users
should not care about. Moreover, a future version of Emacs could stop
preloading Emacs.

-- 
Damien Cassou
http://damiencassou.seasidehosting.st

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