bug#7693: 24.0.50, 23.2.91; advice to kill-new causes warning

[Noam Postavsky]

Katsumi Yamaoka <yamaoka@jpl.org> writes:

> Maybe it's harmless but surprises me a bit.
>
> (require 'bytecomp)
> (defadvice kill-new (before nop activate))
>
> This causes a warning in the "*Compile-Log*" buffer as follows:

I tried compiling a file containing the above statements in newer
(24.3..26) emacs and got no warnings.  Not sure if the behaviour has
changed, or I misunderstood the report.