Elisp-mode was doing a lot of work that can now be delegated to Eldoc.
Flymake uses the new Eldoc functionality, too, installing a global
documentation function that may report on diagnostics under point.

CEDET's grammar.el was left as the only user of an Eldoc-internal
function.  That function was moved to grammar.el.  That file is still,
somewhat reprehensibly, using an internal function of elisp-mode.el,
but this was left unchanged.

In other situations, eldoc-documentation-functions is used or
recommended.

The only other places where the obsolete eldoc-documentation-function
is still used is in libraries which are presumably meant to remain
compatible with previous Emacs versions.

* lisp/progmodes/elisp-mode.el (elisp-eldoc-funcall)
(elisp-eldoc-var-docstring): New functions.
(emacs-lisp-mode): Put two elements in
eldoc-documentation-functions.

* lisp/emacs-lisp/eldoc.el (eldoc--eval-expression-setup): Setup
new Elisp eldoc-documentation-functions.

* lisp/progmodes/flymake.el (flymake-mode): Use
flymake-eldoc-function.
(flymake-eldoc-function): New function.
(Package-Requires): Require eldoc 1.1.0

* lisp/descr-text.el (describe-char-eldoc): Recommend
eldoc-documentation-functions.

* lisp/progmodes/cfengine.el (cfengine3-documentation-function):
Recommend eldoc-documentation-functions

* lisp/progmodes/octave.el (inferior-octave-mode): Use
eldoc-documentation-functions.

* lisp/cedet/semantic/grammar.el (semantic--docstring-format-sym-doc):
New function.
(semantic-grammar-eldoc-get-macro-docstring): Adjust.

* lisp/cedet/semantic/complete.el
(semantic-displayer-tooltip-max-tags):
* lisp/emacs-lisp/benchmark.el (benchmark-run-compiled):
* lisp/emacs-lisp/package.el (package--default-summary)
(package-menu-filter-by-version):
* lisp/eshell/em-pred.el (eshell-pred-file-time):
* lisp/progmodes/verilog-mode.el (verilog-auto-lineup)
(verilog-auto-reset-widths, verilog-auto-arg-format)
(verilog-auto-inst-vector, verilog-auto-inst-template-numbers):
* lisp/textmodes/bibtex.el (bibtex-dialect):
* test/lisp/autoinsert-tests.el
(autoinsert-tests-define-auto-insert-before)
(autoinsert-tests-define-auto-insert-after): Remove some unnecessary
quoting around anonymous functions.

* lisp/cedet/semantic/wisent/comp.el (wisent-ISVALID-TOKEN)
(wisent-parse-nonterminals):
* lisp/cedet/semantic/wisent/wisent.el
(wisent-item-to-string): Remove XEmacs compatibility code.
(wisent-char-p): Redefine as obsolete function alias for
'characterp'.

Noticed by Andreas Schwab.

* lisp/cedet/semantic/db-ebrowse.el (semanticdb-load-ebrowse-caches):
Quote file name in regexp.

a5f7c26907 (origin/emacs-27) * admin/authors.el: Add an author alias.
d87a4d1f4e Limit RLIMIT_NOFILE to FD_SETSIZE on macOS
e5ca8e5e73 Fix Elisp manual entry on 'set-window-configuration'
485f24223f ; Update ChangeLog.3
8f200254fb ; Update etc/AUTHORS
c7adc851ad * admin/authors.el: Add missing author aliases.
4acdd7fe58 Fix edge case errors in filename-matching regexps
5f36e21fe5 Clarify the doc string of 'yank'
13301d4266 New function erc-track-switch-buffer-other-window
38f7538d8f New function erc-switch-to-buffer-other-window

# Conflicts:
#	etc/NEWS

These changes fix actual or latent bugs in regexps that match
file names, such as PATTERN arguments to 'directory-files'.  See
https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00265.html

* admin/authors.el (authors-obsolete-files-regexps)
(authors-renamed-files-regexps):
* lisp/auth-source-pass.el (auth-source-pass-entries):
* lisp/calendar/todo-mode.el (todo-show, todo-find-filtered-items-file)
(todo-filter-items, todo-reset-nondiary-marker, todo-reset-done-string)
(todo-reset-comment-string, todo-reset-highlight-item):
* lisp/cedet/semantic/db-ebrowse.el (semanticdb-load-ebrowse-caches):
* lisp/cedet/semantic/texi.el (semantic-texi-associated-files):
* lisp/cedet/srecode/map.el (srecode-map-update-map):
* lisp/dired.el (dired-re-no-dot):
* lisp/emacs-lisp/autoload.el (update-directory-autoloads):
* lisp/emacs-lisp/shadow.el (load-path-shadows-find):
* lisp/files.el (auto-mode-alist, directory-files-no-dot-files-regexp):
* lisp/finder.el (finder-compile-keywords):
* lisp/generic-x.el (inetd-conf-generic-mode, named-boot-generic-mode)
(resolve-conf-generic-mode, etc-modules-conf-generic-mode):
* lisp/gnus/gnus-agent.el (gnus-agent-read-agentview)
(gnus-agent-regenerate-group, gnus-agent-update-files-total-fetched-for):
* lisp/gnus/gnus-cache.el (gnus-cache-articles-in-group):
* lisp/gnus/gnus-score.el (gnus-score-search-global-directories):
* lisp/gnus/gnus-util.el (gnus-delete-directory):
* lisp/gnus/gnus-uu.el (gnus-uu-dir-files):
* lisp/gnus/nndraft.el (nndraft-request-group):
* lisp/gnus/nnmh.el (nnmh-request-group, nnmh-request-create-group):
(nnmh-request-delete-group, nnmh-active-number, nnmh-update-gnus-unreads):
* lisp/gnus/nnspool.el (nnspool-request-group):
* lisp/gnus/spam-stat.el (spam-stat-process-directory)
(spam-stat-test-directory):
* lisp/help-fns.el (help-fns--first-release):
* lisp/help.el (view-emacs-news):
* lisp/international/quail.el (quail-update-leim-list-file):
* lisp/international/titdic-cnv.el (batch-titdic-convert):
* lisp/mail/mspools.el (mspools-set-vm-spool-files)
(mspools-get-spool-files):
* lisp/mail/rmail.el (rmail-secondary-file-regexp)
(rmail-speedbar-match-folder-regexp):
* lisp/net/ange-ftp.el (ange-ftp-delete-directory):
* lisp/net/tramp.el (tramp-use-absolute-autoload-file-names):
* lisp/obsolete/gulp.el (gulp-send-requests):
* lisp/obsolete/vc-arch.el (vc-arch-trim-revlib):
* lisp/org/ob-core.el (org-babel-remove-temporary-directory):
* lisp/progmodes/ebnf2ps.el (ebnf-file-suffix-regexp, ebnf-style-database):
* lisp/progmodes/executable.el (executable-command-find-posix-p):
* lisp/startup.el (command-line):
* lisp/textmodes/refer.el (refer-get-bib-files):
* lisp/url/url-about.el (url-probe-protocols):
* lisp/vc/vc-rcs.el (vc-rcs-register, vc-rcs-unregister):
* test/lisp/net/tramp-archive-tests.el
(tramp-archive-test19-directory-files-and-attributes):
* test/lisp/net/tramp-tests.el (tramp-test19-directory-files-and-attributes):
Replace ^ and $ with \` and \', respectively.
Use (rx (or (not ".") "...")), translated into "[^.]\\|\\.\\.\\.",
to match anything but "." and "..", instead of several incorrect
regexps.

e92b8e535a (origin/emacs-27) Remove raw carriage return characters fr...
5747a59a88 Recalculate default font when switching font backend
a2dd8c4234 * lisp/tab-line.el: Fix tab-line-format and tab-line-forma...
a7b8291b6c * etc/NEWS: Make the `--eval` example slightly more precise
f8254aad14 * lisp/image/image-converter.el: Support more ImageMagick ...
5beb269505 Support Unicode 13.0
3a671ad7ed Fix regression in wisent-total-conflicts

# Conflicts:
#	etc/NEWS

* lisp/cedet/semantic/wisent/comp.el (wisent-total-conflicts):
There may not be a current source file.  In that case, don't try
to keep track of the number of expected conflicts (bug#39911).

These irregularities were found by relint; see
https://lists.gnu.org/archive/html/emacs-devel/2020-01/msg00949.html .

* doc/lispref/modes.texi (Example Major Modes):
* etc/srecode/el.srt:
* lisp/cedet/data-debug.el (data-debug-mode):
* lisp/cedet/semantic/grammar.el (semantic-grammar-mode):
* lisp/cedet/srecode/srt-mode.el (srecode-template-mode):
* lisp/comint.el (comint--unquote&requote-argument):
* lisp/emacs-lisp/lisp-mode.el (lisp-mode):
* lisp/gnus/mm-uu.el (mm-uu-type-alist):
* lisp/progmodes/cc-awk.el (c-awk-harmless-pattern-characters*):
* lisp/progmodes/cfengine.el (cfengine-common-settings):
* lisp/progmodes/cperl-mode.el (cperl-after-sub-regexp, cperl-init-faces):
* lisp/shell.el (shell-chdrive-regexp, shell--unquote&requote-argument):
* lisp/textmodes/tex-mode.el (tex-common-initialization):
Remove duplicated backslashes in character alternatives.

* lisp/emacs-lisp/lisp-mode.el (lisp-el-font-lock-keywords-2):
* lisp/progmodes/opascal.el (opascal--syntax-propertize):
* lisp/progmodes/pascal.el (pascal--syntax-propertize):
Remove backslashes escaping non-special characters.

* lisp/progmodes/fortran.el (fortran-font-lock-keywords-3): Escape '*'.
* lisp/progmodes/perl-mode.el (perl-syntax-propertize-function):
Escape '^'.

* lisp/info.el (Info-install-speedbar-variables):
* lisp/cedet/ede.el (speedbar):
* lisp/cedet/semantic/imenu.el (speedbar):
* lisp/emacs-lisp/eieio-opt.el (eieio-class-speedbar-key-map):
* lisp/emacs-lisp/eieio-speedbar.el (eieio-speedbar-create):
* lisp/erc/erc-speedbar.el (erc-install-speedbar-variables):
* lisp/mail/rmail.el (rmail-install-speedbar-variables):
* lisp/progmodes/gud.el (gud-install-speedbar-variables):
Use with-eval-after-load.