bug#54963: 28.1; bindings for widget-describe and button-describe

[Howard Melman]

Maybe I'm missing something but I see that Emacs 28.1 added
functions widget-describe and button-describe that offer
help when point is on one of these things,  but there's no
binding for them.

I think that some key, perhaps C-h or ? or something should
invoke these when point is on them.  Maybe it should be
integrated with display-local-help on `C-h .' ?

Howard


In GNU Emacs 28.1 (build 1, x86_64-apple-darwin20.6.0, Carbon Version 164 
AppKit 2022.6)
of 2022-04-09 built on Mac-1649520554451.local
Repository revision: ee79b048bbb2fd4a962dfb2204cc7a2f0d5237d8
Repository branch: 28.1-mac-9.0-CI
Windowing system distributor 'Apple Inc.', version 11.6.5
System Description:  macOS 11.6.5

Configured using:
'configure --with-mac
--enable-locallisppath=/usr/local/share/emacs/site-lisp:/opt/homebrew/share/emacs/site-lisp
--enable-mac-app=/Users/runner/work/homebrew-emacsmacport/homebrew-emacsmacport/build-scripts/emacs-source/tmproot
--prefix=/Users/runner/work/homebrew-emacsmacport/homebrew-emacsmacport/build-scripts/emacs-source/tmproot
--enable-mac-self-contained --with-modules'

Configured features:
ACL GMP GNUTLS JSON LIBXML2 MODULES NOTIFY KQUEUE PDUMPER
THREADS TOOLKIT_SCROLL_BARS XIM ZLIB

Important settings:
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Major mode: ELisp/l

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  column-number-mode: t
  line-number-mode: t
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Load-path shadows:
/Users/hmelman/.emacs.d/elpa/transient-20220412.1523/transient hides 
/Applications/Emacs.app/Contents/Resources/lisp/transient

Features:
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Memory information:
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(symbols 48 46267 75)
(strings 32 209252 17730)
(string-bytes 1 7296932)
(vectors 16 102989)
(vector-slots 8 1797304 147819)
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(buffers 992 48))