This new package provides an API that is easier to use right than
our `*-change-functions` hooks.

The patch includes changes to `diff-mode.el` and `eglot.el` to
make use of this new package.

* lisp/emacs-lisp/track-changes.el: New file.
* test/lisp/emacs-lisp/track-changes-tests.el: New file.
* doc/lispref/text.texi (Tracking changes): New subsection.

* lisp/progmodes/eglot.el: Require `track-changes`.
(eglot--virtual-pos-to-lsp-position): New function.
(eglot--track-changes): New var.
(eglot--managed-mode): Use `track-changes-register` i.s.o
`after/before-change-functions` when available.
(eglot--track-changes-signal): New function, partly extracted from
`eglot--after-change`.
(eglot--after-change): Use it.
(eglot--track-changes-fetch): New function.
(eglot--signal-textDocument/didChange): Use it.

* lisp/vc/diff-mode.el: Require `track-changes`.
Also require `easy-mmode` before the `eval-when-compile`s.
(diff-unhandled-changes): Delete variable.
(diff-after-change-function): Delete function.
(diff--track-changes-function): Rename from `diff-post-command-hook`
and adjust to new calling convention.
(diff--track-changes): New variable.
(diff--track-changes-signal): New function.
(diff-mode, diff-minor-mode): Use it with `track-changes-register`.

* test/src/search-tests.el (test-replace-match-modification-hooks):
Delete, this is testing a functionality we can't really support.

* lisp/ls-lisp.el (ls-lisp--sanitize-switches): Support '--time'
and '--sort=time'.  (Bug#70271)

* test/lisp/ls-lisp-tests.el (ls-lisp-test-bug70271): New
test case.

* test/src/comp-tests.el (comp-tests-tco, comp-tests-fw-prop-1)
(comp-tests-pure): Update out of date pass names.

* lisp/treesit.el (treesit--things-around): Remove function.
(treesit-forward-sexp):
(treesit-beginning-of-thing):
(treesit-end-of-thing):
(treesit-navigate-thing):
(treesit-thing-at-point):
(treesit-outline-search): Use public version of thing-functions.
(treesit--thing-prev):
(treesit--thing-next):
(treesit--thing-at):
(treesit--navigate-thing): Make public.

* test/src/treesit-tests.el (treesit--ert-test-defun-navigation): Use
public version of thing-functions.

* lisp/erc/erc.el (erc--read-time-period, erc--decode-time-period):
Move body of former, now a superficial wrapper, to latter, a new
function.
(erc--format-time-period): New function.
(erc--get-ignore-timer-args): New function.
(erc--find-ignore-timer): New function to search through `timer-list'
to find matching ignore timer.
(erc-cmd-IGNORE): Refactor and redo doc string.  Add new optional
`timespec' parameter, primarily to aid in testing.  Update an existing
timer instead of always creating one, and display time remaining in
"ignore list" output.  Pass server buffer instead of current buffer to
timer callbacks because `erc--unignore-user' displays its messages in
the `active' buffer, not necessarily the issuing one.  Note that doing
this does discard potentially useful information, so if ever reverting,
we can change the `cl-find' :test in `erc--find-ignore-timer' to
something that compares the `erc-server-process' of both buffers.
;;
;; Something like:
;;
;; (defun erc--ignore-timers-equal-p (a b)
;;   (and (equal (car a) (car b))
;;        (eq (buffer-local-value 'erc-server-process (cadr a))
;;            (buffer-local-value 'erc-server-process (cadr b)))))
;;
(erc-cmd-UNIGNORE): Pass `erc-ignore-list' member matching `user'
parameter to `erc--unignore-user' instead of original, raw parameter,
along with the server buffer.
(erc--unignore-user): Cancel existing timer and don't bother switching
to server buffer since we're already there.
(erc-message-english-ignore-list): New variable.
* test/lisp/erc/erc-scenarios-ignore.el: New file.
* test/lisp/erc/erc-tests.el (erc--read-time-period): New test.
(erc-cmd-UNIGNORE): New test.  (Bug#70127)

* src/search.c (Freplace_match): For ordering of *-change-functions.

* test/src/editfns-tests.el
(editfns-tests--before/after-change-functions): New test.
(sanity-check--message, sanity-check-change-functions-error)
(sanity-check-change-functions-check-size)
(sanity-check-change-functions-before)
(sanity-check-change-functions-after): New functions.
(sanity-check--verbose, sanity-check-change-functions-beg)
(sanity-check-change-functions-end)
(sanity-check-change-functions-buffer-size)
(sanity-check-change-functions-errors): New vars.

46b8746b38e Fix warning-suppress for list type "warning type"
910ea5f1e55 Make object init more robust (bug#69571)