* src/bidi.c (bidi_find_first_overridden): Detect reordered weak
and neutral characters as well.

* lisp/international/mule-cmds.el
(highlight-confusing-reorderings): Count and announce how many
instances were found.

* test/src/xdisp-tests.el
(xdisp-tests--find-directional-overrides-case-3): New test.
(xdisp-tests--find-directional-overrides-case-2): Adjust expected
result.

* test/lisp/abbrev-tests.el (read-write-abbrev-file-test)
(read-write-abbrev-file-test-with-props)
(abbrev-edit-save-to-file-test):
* test/lisp/auth-source-tests.el (auth-source-test-netrc-create-secret)
(auth-source-delete):
* test/lisp/autoinsert-tests.el (autoinsert-tests-auto-insert-file):
* test/lisp/bookmark-tests.el (with-bookmark-test-save-load):
* test/lisp/buff-menu-tests.el (buff-menu-24962):
* test/lisp/calendar/icalendar-tests.el (icalendar-tests--do-test-export):
* test/lisp/calendar/todo-mode-tests.el (with-todo-test):
* test/lisp/dired-tests.el
(dired-test-bug27243-01, dired-test-bug27243-02)
(dired-test-bug27243-03, dired-test-bug27631)
(dired-test-bug27968, dired-test-with-temp-dirs):
* test/lisp/dired-x-tests.el (dired-test-bug25942):
* test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--with-temp-file):
* test/lisp/emacs-lisp/check-declare-tests.el (check-declare-tests-scan)
(check-declare-tests-verify-mismatch):
* test/lisp/emacs-lisp/edebug-tests.el (edebug-tests-with-normal-env):
* test/lisp/emacs-lisp/package-tests.el (with-package-test)
(package-test-signed):
* test/lisp/emacs-lisp/testcover-tests.el (testcover-tests-markup-region)
(testcover-tests-run-test-case):
* test/lisp/emulation/viper-tests.el (viper-test-undo-kmacro):
* test/lisp/epg-tests.el (with-epg-tests):
* test/lisp/eshell/em-hist-tests.el (eshell-write-readonly-history):
* test/lisp/eshell/em-ls-tests.el (em-ls-test-bug27631):
* test/lisp/ffap-tests.el (ffap-tests-25243):
* test/lisp/files-tests.el (files-tests-bug-18141)
(files-tests-read-file-in-~, files-tests-make-directory)
(files-tests-copy-directory, files-tests-executable-find)
(files-tests-dont-rewrite-precious-files)
(files-tests--save-some-buffers):
* test/lisp/ls-lisp-tests.el (ls-lisp-test-bug27631):
* test/lisp/mail/uudecode-tests.el (uudecode-tests-decode-region-internal)
(uudecode-tests-decode-region-external):
* test/lisp/net/browse-url-tests.el (browse-url-tests-delete-temp-file):
* test/lisp/progmodes/elisp-mode-tests.el (xref--case-insensitive):
* test/lisp/progmodes/etags-tests.el (etags-buffer-local-tags-table-list):
* test/lisp/progmodes/flymake-tests.el (ruby-backend):
* test/lisp/progmodes/python-tests.el (python-tests-with-temp-file):
* test/lisp/progmodes/sql-tests.el (with-sql-test-connect-harness):
* test/lisp/saveplace-tests.el (saveplace-test-save-place-to-alist/file)
(saveplace-test-forget-unreadable-files)
(saveplace-test-place-alist-to-file):
* test/lisp/so-long-tests/spelling-tests.el:
* test/lisp/textmodes/reftex-tests.el (reftex-locate-bibliography-files)
(reftex-parse-from-file-test):
* test/lisp/thumbs-tests.el (thumbs-tests-thumbsdir/create-if-missing):
* test/lisp/vc/vc-bzr-tests.el (vc-bzr-test-bug9726)
(vc-bzr-test-bug9781, vc-bzr-test-faulty-bzr-autoloads):
* test/lisp/vc/diff-mode-tests.el (diff-mode-test-ignore-trailing-dashes):
* test/lisp/vc/ediff-ptch-tests.el (ediff-ptch-test-bug26084):
* test/lisp/wdired-tests.el (wdired-test-bug32173-01)
(wdired-test-bug32173-02, wdired-test-symlink-name)
(wdired-test-unfinished-edit-01, wdired-test-bug34915)
(wdired-test-bug39280):
* test/src/buffer-tests.el (test-kill-buffer-auto-save-default):
* test/src/filelock-tests.el (filelock-tests--fixture):
* test/src/inotify-tests.el (inotify-file-watch-simple):
* test/src/undo-tests.el (undo-test-file-modified): Prefer
'ert-with-temp-(directory|file)' to using 'make-temp-file' directly.
In some cases, this is just cleanup, but in several cases this fixes
bugs where an error would have lead to us not cleaning up.

* test/lisp/custom-tests.el (custom-tests--with-temp-dir):
* test/lisp/files-tests.el (files-tests--with-temp-file):
* test/lisp/progmodes/project-tests.el
(project-tests--with-temporary-directory):
* test/src/emacs-module-tests.el (module--with-temp-directory):
* test/src/emacs-tests.el (emacs-tests--with-temp-file):
* test/src/lread-tests.el (lread-tests--with-temp-file):
* test/src/process-tests.el (process-tests--with-temp-directory):
Replace macros with 'ert-with-temp-(file|directory)'.  Update callers.

* src/bidi.c (bidi_find_first_overridden): Detect suspiciously
reordered EN types as well.

* test/src/xdisp-tests.el
(xdisp-tests--find-directional-overrides-case-1): Rename from
'xdisp-tests--find-directional-overrides'.
(xdisp-tests--find-directional-overrides-case-2): New test.

* src/bidi.c (bidi_find_first_overridden): Extend to detect more
subtle effects of directional formatting controls, to include
embeddings and isolates.
* src/xdisp.c (Fbidi_find_overridden_directionality): Accept an
additional argument BASE-DIR to specify the base direction of the
paragraphs.

* lisp/international/mule-cmds.el (confusingly-reordered): New
face.
(reorder-starters, reorder-enders): New variables.
(highlight-confusing-reorderings): New command to detect and
highlight suspiciously reordered text.

* test/src/xdisp-tests.el
(xdisp-tests--find-directional-overrides): New test.

* etc/NEWS: Announce the new and improved features.
* etc/tutorials/TUTORIAL.he: Fix embeddings with incorrect
directions.

* test/src/keymap-tests.el
(help--describe-vector/bug-9293-one-shadowed-in-range): Update tests
for d530f3f9ff.
(help--describe-vector/bug-9293-same-command-does-not-shadow): Update
(bug#51567).

* test/src/keymap-tests.el (keymap-lookup-key/menu-non-symbol):
New test.

* lisp/emacs-lisp/ert.el (ert-equal-including-properties): Make
into obsolete function alias for 'equal-including-properties'.
* test/src/editfns-tests.el (format-properties):
* test/lisp/emacs-lisp/ert-x-tests.el (ert-propertized-string)
(ert-test-run-tests-interactively-2): Don't use above obsolete
name.

(ert--explain-equal-including-properties-rec): New function.
(ert--explain-equal-including-properties): Use as an explainer for
'equal-including-properties' now that Bug#6581 is fixed.

* test/lisp/emacs-lisp/ert-tests.el
(ert-test-explain-equal-string-properties): Expand test.
(ert-test-equal-including-properties): Merge test into above
expanded test.

* src/intervals.c (intervals_equal_1): Factor out from
intervals_equal.  Optionally use Fequal for comparison of string
values in property lists.
(intervals_equal): Update for the above.
(compare_string_intervals): Use the above optional Fequal comparison
to fix a bug where 'equal-including-properties' compared strings with
eq, instead of equal.  (Bug#6581)
* test/src/fns-tests.el (fns-tests-equal-including-properties)
(fns-tests-equal-including-properties/string-prop-vals): New tests.

* test/lisp/emacs-lisp/ert-tests.el
(ert-test-equal-including-properties): Remove parts testing
'equal-including-properties'.
* lisp/emacs-lisp/ert.el (ert-equal-including-properties): Add
FIXME that this should be removed.

* src/keymap.c (lookup_key_1): Factor out function from
Flookup_key.
(Flookup_key): Be case insensitive, and treat spaces as dashes,
when looking for Qmenu_bar items.  (Bug#50752)

* test/src/keymap-tests.el
(keymap-lookup-key/mixed-case)
(keymap-lookup-key/mixed-case-multibyte)
(keymap-lookup-keymap/with-spaces)
(keymap-lookup-keymap/with-spaces-multibyte)
(keymap-lookup-keymap/with-spaces-multibyte-lang-env): New tests.