Yikes! easy-menu-add is suddenly compiled to `ignore', without any warning.

[Alan Mackenzie <acm@muc.de>]

Hello, Emacs and Stefan K.

In Emacs 28, easy-menu-add is now compiled to `ignore'.  This isn't
friendly, particularly as in Emacs 27.2 and earlier, it just worked,
without any warnings of impending obsoletion.

The warning message Emacs 28.1 gives out is particularly unfriendly and
unhelpful.  It looks like this:

    cc-mode.el:2591:4: Warning: `easy-menu-add' is an obsolete function
    (as of 28.1); use `ignore' instead.

Use `ignore' instead?

Why have we not followed the normal procedure here, by marking the
function as obsolete, yet leaving it working, for one or two major
versions, and only then removing it?

This sudden removal of easy-menu-add will cause unnecessary annoyance
amongst maintainers whose sources still use it.  Even in the Emacs
sources there are 25 uses of the function.

The commit which created this situation was probably this one:

commit affe9b225de711429248a73f920dc9f38b15c932
Author: Stefan Kangas <stefan@marxist.se>
Date:   Tue Nov 24 17:39:11 2020 +0100

    Make XEmacs compat aliases easy-menu-{add,remove} obsolete

-- 
Alan Mackenzie (Nuremberg, Germany).