Add intersection support into comp-cstr.el

* Synthesize as const primitive function pointers and its container struct.

* src/comp.c (declare_imported_func): Make const function pointer
to primitive funcions.
(emit_ctxt_code): Make struct 'comp.func_relocs' const.

Move some tests from comp-tests.el to comp-cstr-tests.el

* test/lisp/emacs-lisp/comp-cstr-tests.el
(comp-cstr-typespec-tests-alist): Add tests covering what was in:
`range-simple-union', `union-types', `destructure-type-spec'.
* test/src/comp-tests.el (range-simple-intersection, union-types)
(destructure-type-spec): Remove tests.

Add comp-cstr.el and comp-cstr-tests.el

As the constraint logic of the compiler is not trivial and largely
independent from the rest of the code move it into comp-cstr.el to
ease separation and maintainability.

This commit improve the conversion type
specifier -> constraint for generality.

Lastly this should help with bootstrap time as comp.el compilation
unit is slimmed down.

* lisp/emacs-lisp/comp-cstr.el: New file.
(comp--typeof-types, comp--all-builtin-types): Move from comp.el.
(comp-cstr, comp-cstr-f): Same + rename.
(comp-cstr-ctxt): New struct.
(comp-supertypes, comp-common-supertype-2)
(comp-common-supertype, comp-subtype-p, comp-union-typesets)
(comp-range-1+, comp-range-1-, comp-range-<, comp-range-union)
(comp-range-intersection): Move from comp.el.
(comp-cstr-union-no-range, comp-cstr-union): Move from comp.el and
rename.
(comp-cstr-union-make): New function.
(comp-type-spec-to-cstr, comp-cstr-to-type-spec): Move from
comp.el, rename it and rework it.

* lisp/emacs-lisp/comp.el (comp-known-func-cstr-h): Rework.
(comp-ctxt): Remove two fields and include `comp-cstr-ctxt'.
(comp-mvar, comp-fwprop-call): Update for `comp-cstr' being
renamed.
(comp-fwprop-insn): Use `comp-cstr-union-no-range' or
`comp-cstr-union'.
(comp-ret-type-spec): Use `comp-cstr-union' and rework.

* test/lisp/emacs-lisp/comp-cstr-tests.el: New file.
(comp-cstr-test-ts, comp-cstr-typespec-test): New functions.
(comp-cstr-typespec-tests-alist): New defconst to generate tests
on.
(comp-cstr-generate-tests): New macro.

* test/src/comp-tests.el (comp-tests-type-spec-tests): Update.
(ret-type-spec): Initialize constraint context.

* Add SELECTOR parameter to `native-compile-async' (bug#44813)

* lisp/emacs-lisp/comp.el (native-compile-async-skip-p): New function
ripping out logic from `native--compile-async' and accounting for
SELECTOR.
(native--compile-async): Add SELECTOR parameter, make use of
`native-compile-async-skip-p' and move it with other private
functions.
(native-compile-async): Add SELECTOR parameter.

* Rename two native compiler customize

* lisp/emacs-lisp/comp.el (comp-deferred-compilation-deny-list):
Rename from `comp-deferred-compilation-black-list'.
* lisp/emacs-lisp/comp.el (native--compile-async): Update to use
`comp-deferred-compilation-deny-list'.
(comp-bootstrap-deny-list): Rename.
(batch-native-compile): Update to use `comp-bootstrap-deny-list'.

Merge remote-tracking branch 'savannah/master' into HEAD

Replace /dev/null by remote null-device in Tramp.

* lisp/net/tramp-adb.el (tramp-adb-get-ls-command)
(tramp-adb-handle-set-file-times, tramp-adb-handle-process-file):
Use `tramp-get-remote-null-device'.

* lisp/net/tramp-compat.el (tramp-tramp-file-p): Declare.
(tramp-compat-null-device): New defalias.

* lisp/net/tramp-sh.el (tramp-methods) <telnet, nc>:
(tramp-perl-encode-with-module, tramp-perl-decode-with-module)
(tramp-perl-encode, tramp-perl-decode, tramp-awk-decode):
Use "%n" marker.
(tramp-do-directory-files-and-attributes-with-stat)
(tramp-sh-handle-file-name-all-completions)
(tramp-do-copy-or-rename-file-out-of-band)
(tramp-sh-handle-insert-directory, tramp-sh-handle-process-file)
(tramp-set-remote-path, tramp-open-connection-setup-interactive-shell)
(tramp-find-inline-encoding, tramp-send-command-and-check)
(tramp-get-remote-path, tramp-get-ls-command, tramp-get-ls-command-with)
(tramp-get-remote-awk, tramp-get-remote-hexdump, tramp-get-remote-od)
(tramp-get-env-with-u-option): Use `tramp-get-remote-null-device'.
(tramp-remote-coding-commands, tramp-call-local-coding-command):
Adapt docstring.

* lisp/net/tramp-smb.el (tramp-smb-conf): Use `null-device'.
(tramp-smb-handle-file-acl): Use `tramp-get-remote-null-device'.

* lisp/net/tramp.el (tramp-methods): Adapt docstring.
(tramp-get-remote-null-device): New defun.
(tramp-interrupt-process): Use it.

Test for byte-compiler warning "variable lacks prefix"

* test/lisp/emacs-lisp/bytecomp-tests.el
(bytecomp--with-warning-test): New macro.
(bytecomp-warn-wrong-args, bytecomp-warn-wrong-args-subr):
Use above new macro.
(bytecomp-warn-variable-lacks-prefix): New test.

Test interactive-only spec of with-suppressed-warnings

* test/lisp/emacs-lisp/bytecomp-tests.el
(bytecomp-test--with-suppressed-warnings): Test suppressing warning
with interactive-only.

Say which command shadows a key binding

* src/keymap.c (describe_vector): Say which command shadows this
binding.  (Bug#9293)
* test/src/keymap-tests.el
(help--describe-vector/bug-9293-one-shadowed-in-range): Adapt
test.

Don't shadow bindings by the same command

* src/keymap.c (describe_vector): Do not say binding is shadowed if
the other key binding points to the same command.  (Bug#9293)
* test/src/keymap-tests.el
(help--describe-vector/bug-9293-same-command-does-not-shadow): New
test.

Don't show key ranges if shadowed by different commands

* src/keymap.c (describe_vector): Make sure found consecutive keys
are either not shadowed or, if they are, that they are shadowed by
the same command.  (Bug#9293)
* test/src/keymap-tests.el
(help--describe-vector/bug-9293-one-shadowed-in-range): New test.

Handle help-form in y-or-n-p and use this in find-file-noselect (bug#5423)

* doc/lispref/help.texi (Help Functions): Mention help-form for
read-char-from-minibuffer and y-or-n-p.

* doc/lispref/minibuf.texi (Yes-or-No Queries): Mention help-form
for y-or-n-p.
(Multiple Queries): Mention help-form for read-char-from-minibuffer.

* lisp/files.el (find-file-noselect): Let-bind multi-line help text
to help-form for y-or-n-p.

* lisp/subr.el (read-char-choice): Mention help-form in docstring.
(read-char-from-minibuffer): Mention help-form in docstring.
(y-or-n-p-map): Remove handling of 'help'.
(y-or-n-p): Mention help-form in docstring.
When help-form is non-nil: add help-char to 'prompt', and bind
help-char to help-form-show in composed-keymap.

Handle connection-local null-device and path-separator variables

* doc/lispref/os.texi (System Environment): Add `path-separator'
function and `null-device' variable and function.

* etc/NEWS: Mention 'null-device' and 'path-separator'.  Fix typos.

* lisp/files-x.el (path-separator, null-device): New defuns.  (Bug#3736)

* lisp/net/tramp-adb.el
(tramp-adb-connection-local-default-shell-variables): Rename from
`tramp-adb-connection-local-default-profile'.

* lisp/net/tramp-integration.el
(tramp-connection-local-default-system-variables): New defvar.
Add it to connection-local profiles.
(tramp-connection-local-default-shell-variables): Rename from
`tramp-connection-local-default-profile'.

* lisp/progmodes/grep.el (grep-hello-file): New defun.
(grep-compute-defaults): Use `null-device' function for remote
case. Handle remote `hello-file'.  Use `process-file-shell-command'.
(grep,grep-expand-keywords, lgrep): Use `null-device' function for
remote case.

Migrate usage of GPM_CLICK_EVENT to MOUSE_CLICK_EVENT.

* src/termhooks.h (enum event_kind):
* src/term.c (term_mouse_click, handle_one_term_event):
* src/keyboard.c (discard_mouse_events, make_lispy_event): Migrate
usage of GPM_CLICK_EVENT to MOUSE_CLICK_EVENT.

Make load argument of native-compile-async internal

* lisp/emacs-lisp/comp.el (native--compile-async): New defun extracted
from native-compile-async.
(native-compile-async): Remove load argument and use above new defun.
* src/comp.c (maybe_defer_native_compilation): Use above new
defun.  (Bug#44676)

* lisp/emacs-lisp/package.el (package-strip-rcs-id): Don't ignore errors

Ignoring errors here just postpones the error and replaces a clear
"invalid version syntax" with a confusing "package lacks a version".

Use cl-letf instead of unwind-protect in a test

* test/lisp/cus-edit-tests.el (cus-edit-tests-customize-saved/show-obsolete):
Good use case for cl-letf, so use it.
Suggested by Stefan Monnier <monnier@iro.umontreal.ca> in:
https://lists.gnu.org/archive/html/emacs-devel/2020-11/msg00914.html

* test/manual/indent/tcl.tcl: Add string interpolation case

Don't optimize away `eval` when its lexical context is different

* lisp/emacs-lisp/bytecomp.el (byte-compile-file-form-eval):
Obey lexical-binding.

Take care of a FIXME in cus-edit-tests.el

* test/lisp/cus-edit-tests.el (cus-edit-tests-customize-saved/show-obsolete):
Add a fake saved-value property, to be able check that the obsolete
option is present in the Customize buffer.  Expect the test to pass
now.

* lisp/emacs-lisp/comp.el (native-compile-async): Doc fix.

Support native compilation of packages on install

* lisp/emacs-lisp/package.el (package-unpack)
(package--native-compile): Native compile packages on install, if the
feature is available.  (Bug#44676)
(package-native-compile): New defcustom.

compile-async: Don't error out on deferred compilation after load

* lisp/emacs-lisp/comp.el (native-compile-async): Update
comp-files-queue when deferred compilation is requested.  (Bug#44676)

; Fix trivial typos

Don't quote lambda in idlwave.el

* lisp/progmodes/idlwave.el (idlwave-keyword-abbrev): Don't quote
lambda.

Remove remaining XEmacs compat code from erc-log.el

* lisp/erc/erc-log.el (erc-save-buffer-in-logs): Remove XEmacs
compat code.

Don't set XEmacs only properties start-open and end-open

* lisp/epa.el (epa-sign-region, epa-encrypt-region):
* lisp/erc/erc.el (erc-display-prompt):
* lisp/gnus/message.el (message-forward-make-body-mime):
* lisp/net/eudc-bob.el (eudc-bob-display-jpeg)
(eudc-bob-display-audio, eudc-bob-display-generic-binary):
* lisp/url/url-http.el
(url-http-chunked-encoding-after-change-function): Don't set XEmacs
only properties start-open and end-open.

Remove XEmacs compat code from idlw-shell.el

* lisp/progmodes/idlw-shell.el:
(idlwave-shell-use-toolbar): Doc fix.
(idlwave-default-mouse-track-event-is-with-button): Declare obsolete.
(idlwave-shell-update-bp-overlays): Remove XEmacs compat code.

Remove some XEmacs compat code from ediff-wind.el

* lisp/vc/ediff-wind.el (ediff-window)
(ediff-compute-toolbar-width): Remove some XEmacs compat code.

Remove Emacs 20 compat code from org.el

* lisp/org/org.el (org-org-menu, org-create-customize-menu):
Remove Emacs 20 compat code.

Remove Emacs 20 compat code from idlwave.el

* lisp/progmodes/idlwave.el (idlwave-indent-line)
(idlwave-toggle-comment-region, idlwave-reset-sintern)
(idlwave-unit-name, idlwave-mode-menu-def)
(idlwave-create-customize-menu): Remove Emacs 20 compat code.

Properly mark obsolete semantic functions as such

* lisp/cedet/semantic/ia.el (semantic-ia-get-completions)
(semantic-ia-get-completions-deprecated): Make obsolete.

Mark compat alias in cus-face.el obsolete

* lisp/cus-face.el (custom-facep): Mark compat alias obsolete.
* lisp/cus-dep.el (custom-make-dependencies):
* lisp/cus-edit.el (customize-changed-options)
(custom-unsaved-options, customize-saved, customize-apropos)
(custom-save-faces): Adjust callers.

Fix compilation on MS-Windows with librsvg > 2.46.0

* src/image.c (rsvg_handle_get_dimensions, init_svg_functions):
Make 'rsvg_handle_get_dimensions' available and defined for all
versions of librsvg.  (Bug#44655)

Hide obsolete options in most customize commands

* lisp/cus-edit.el (custom--filter-obsolete-variables): New defun.
* lisp/cus-edit.el (customize-changed-options)
(customize-apropos, custom-group-value-create): Hide obsolete user
options.  (Bug#44598)
* test/lisp/cus-edit-tests.el: New file.

Revert unintended part of last change to jsonrpc-request

While playing around with the timing in this function, I left
this change that could freeze the function on some platforms.

* lisp/jsonrpc.el (jsonrpc-request): Use accept-process-output.
(Version): Bump to 1.0.14

Move semantic/tag obsolete variables to avoid a warning

* lisp/cedet/semantic/tag.el (semantic-token-version): Move to
avoid a compilation warning.

Fix default timeout handling in jsonrpc-request

* lisp/jsonrpc.el (jsonrpc-request): Use default timeout if not passed.
(Version): Bump to 1.0.13

Add 'EMACSNATIVELOADPATH' env variable support (bug#44726)

* lisp/startup.el (normal-top-level): Read 'EMACSNATIVELOADPATH'
and add entries too `comp-eln-load-path'.
* lisp/mail/emacsbug.el (report-emacs-bug): Dump
also 'EMACSNATIVELOADPATH'.

Avoid a compilation warning about an ambiguous else

* src/data.c (set_internal): Avoid compilation warning.

data.c:1443:9: error: suggest explicit braces to avoid ambiguous ‘else’
 1443 |      if (idx > 0 && bindflag == SET_INTERNAL_SET
      |         ^

* src/data.c (set_internal): Fix bug#44733

Set the default value when `set` encounters a PER_BUFFER variable
which has been let-bound globally, to match the behavior seen with
`make-variable-buffer-local`.

* test/src/data-tests.el (binding-test--let-buffer-local):
Add corresponding test.
(data-tests--set-default-per-buffer): Add tentative test for the
performance problem encountered in bug#41029.

Remove some XEmacs compat code from filesets.el

* lisp/filesets.el (filesets-init): Remove some XEmacs compat code.
(filesets-error): Declare obsolete.
(filesets-directory-files, filesets-get-selection)
(filesets-spawn-external-viewer, filesets-get-filelist)
(filesets-open, filesets-close, filesets-get-menu-epilog)
(filesets-ingroup-collect-files, filesets-build-ingroup-submenu)
(filesets-update-pre010505): Adjust callers.

Remove some compat code from ffap.el

* lisp/ffap.el (ffap-mouse-event, ffap-event-buffer): Make obsolete.
(ffap-menu-ask, ffap-at-mouse): Adjust callers.

Declare some compat aliases obsolete

* lisp/cedet/semantic/tag.el (semantic-token-version)
(semantic-token-incompatible-version):
* lisp/emulation/edt.el (edt-bind-standard-key): Make compat
aliases obsolete.

Remove some compat code from url.el

* lisp/url/url.el (url-warn): Make into obsolete alias for
display-warning.
* lisp/url/url-auth.el (url-register-auth-scheme):
* lisp/url/url-news.el (url-news-open-host):
* lisp/url/url-proxy.el (url-find-proxy-for-url): Adjust callers.

Remove some compat code for old versions and XEmacs

* lisp/ibuf-ext.el (ibuffer-old-saved-filters-warning)
(ibuffer-maybe-save-stuff): Assume customize-save-variable is
bound; it is autoloaded.
* lisp/cedet/semantic/symref/grep.el (semantic-symref-perform-search):
* lisp/password-cache.el (password-cache-remove):
* lisp/cedet/semantic/bovine/el.el (semantic-dependency-tag-file):
Remove Emacs 21 compat code.
* lisp/cedet/semantic/sort.el (semantic-string-lessp-ci):
Remove Emacs 20 compat code.
* test/lisp/cedet/semantic-utest.el (semantic-utest-temp-directory):
* lisp/mail/supercite.el (sc-ask): Remove XEmacs compat code.
* lisp/progmodes/idlw-shell.el (idlwave-shell-mode):
* lisp/progmodes/idlwave.el (idlwave-mode): Remove commented out
compat code.

* src/buffer.h (struct buffer): Remove unused field `minor_modes`

* src/buffer.c (bset_minor_modes): Remove function.
(reset_buffer_local_variables, init_buffer_once): Don't set `minor_modes`.

Use decoding implementation from `insert-directory' in Tramp

* lisp/net/tramp-sh.el (tramp-sh-handle-insert-directory):
Use decoding implementation from `insert-directory', it is more robust.

More string-search optimisations

All-ASCII strings cannot have substrings with non-ASCII characters in
them; use this fact to avoid searching entirely.

* src/fns.c (Fstring_search): For multibyte non-ASCII needle and
unibyte haystack, don't check if the haystack is all-ASCII; it's a
waste of time. For multibyte non-ASCII needle and multibyte
all-ASCII haystack, fail immediately.
* test/src/fns-tests.el (string-search): Add more test cases.

* etc/NEWS: Restore entries accidentally removed by previous commit.

In attempted recursive minibuffer use, display error message in correct frame

This was problematic when minibuffer-follows-selected-frame was non-nil.
Introduce a new parameter DONT-SET-FRAME to set-window-configuration.

* doc/lispref/windows.texi (Window Configurations): Describe the new &optional
parameter to set-window-configuration.

* etc/NEWS (Lisp Changes): Note the new parameter to set-window-configuration.

* src/keyboard.c (read_char_help_form_unwind): Add a new Qnil argument to the
call of Fset_window_configuration.

* src/minibuf.c (read_minibuf): Cons up a Qt with the window configuration in
the argument to record_unwind_protect for the window configuration (twice).

* src/window.c (Fset_window_configuration): Add the new &optional parameter
and document it in the doc string.  At the final do_switch_frame operation,
restore the original frame when DONT-SET-FRAME is non-nil.
(restore_window_configuration): Handle the new parameter when the supplied
argument is a cons.

Remove outdated comment about Emacs 20 from viper.el

* lisp/emulation/viper-util.el (viper-chars-in-region): Remove
outdated comment.

Add new variable cperl-tags-file-name

* lisp/progmodes/cperl-mode.el (cperl-tags-file-name): New variable.
(cperl-write-tags): Use above new variable instead of hardcoding
filename "TAGS".  (Bug#8802)

Declare XEmacs compat function in inversion.el obsolete

* lisp/cedet/inversion.el (inversion-require-emacs): Declare obsolete.

Assume font-lock is provided; it's preloaded since 22.1

* lisp/cedet/semantic/format.el (semantic--format-colorize-text):
* lisp/eshell/em-ls.el (eshell-ls--insert-directory):
* lisp/net/dig.el (dig-mode):
* lisp/progmodes/cperl-mode.el (cperl-pod-here-fontify):
* lisp/progmodes/idlw-help.el (idlwave-help-fontify):
* lisp/progmodes/idlwave.el (idlwave-completion-fontify-classes):
Don't check for feature 'font-lock; it has been preloaded since 22.1.
* lisp/cedet/semantic/format.el (font-lock):
* lisp/epa.el (font-lock):
* lisp/erc/erc.el (font-lock):
* lisp/generic-x.el (font-lock):
* lisp/net/sieve-mode.el (font-lock):
* lisp/progmodes/prolog.el (font-lock):
* lisp/textmodes/rst.el (font-lock): Remove unnecessary require.

* lisp/progmodes/cperl-mode.el: Doc fix.

Remove unnecessary load from idlwave

* lisp/progmodes/idlw-shell.el:
* lisp/progmodes/idlwave.el: Remove unnecessary load; easy-menu-define
is autoloaded.

Make compat alias add-submenu obsolete

* lisp/emacs-lisp/easymenu.el (add-submenu): Make compat alias
obsolete.
* lisp/filesets.el (filesets-build-menu-now): Don't use above
obsolete alias.
(filesets-menu-path, filesets-menu-before)
(filesets-menu-in-menu): Doc fix.

Fix SVG display again (bug#44655)

* src/image.c (svg_load_image): Fall back to
rsvg_handle_get_dimensions if we can't calculate the size of the
image.

Clarify that 'diff-error' is part of Emacs 28.1

* lisp/vc/diff-mode.el (diff-error): Add :version tag (bug#44727).

* Fix eln file hasing for symlink paths (bug#44701)

* src/comp.c (Fcomp_el_to_eln_filename): Call `file-truename'
in place of `expand-file-name' when available.

Revert "[WIP] Add and improve section headings"

This reverts commit 007a5a677573ab628426a0605eb38f8e68fe1953.

Revert "[TODO] Remove noisy anti-noise feature"

This reverts commit c36b4eed2d76f0e804d27d35dd6281f858639f94.

[TODO] Remove noisy anti-noise feature

[WIP] Add and improve section headings

Turn gdb-wait-for-pending into a plain function

This avoids unnecessary body duplication in expansion and macro
recursion (causing macro-expansions at runtime), making it clearer
what is going on.

* lisp/progmodes/gdb-mi.el (gdb-wait-for-pending): Make it a function,
remove lambda quoting,  η-reduce and simplify.
(gdb-thread-exited, gdb-thread-selected): Adapt callers.

Don't make bibtex-unify-case-convert buffer-local

The :local tag does not currently work as intended (it results in a
default value of bibtex-unify-case-convert of nil rather than
identity), and no other bibtex.el user option is automatically
buffer-local, so revert this recent change.

For discussion, see the following emacs-devel thread:
https://lists.gnu.org/r/emacs-devel/2020-11/msg00734.html

* lisp/textmodes/bibtex.el (bibtex-unify-case-convert): Don't make
automatically buffer-local for consistency with other user options,
and because the :local tag doesn't have the intended results.

Preserve `dired-filename' text properties in Tramp

* lisp/net/tramp-sh.el (tramp-sh-handle-insert-directory):
Restore `dired-filename' text property, which has been destroyed
by `decode-coding-region'.  (Bug#44682)

Remove redundant 'function's around lambdas

* lisp/allout.el (allout-latex-verb-quote):
* lisp/edmacro.el (edmacro-format-keys):
* lisp/ffap.el (ffap-all-subdirs-loop)
(ffap-kpathsea-expand-path, ffap-menu-rescan):
* lisp/files.el (save-buffers-kill-emacs):
* lisp/find-lisp.el (find-lisp-find-dired-internal)
(find-lisp-insert-directory):
* lisp/gnus/gnus-agent.el (gnus-agent-expire-unagentized-dirs):
* lisp/gnus/nnmairix.el (nnmairix-create-message-line-for-search)
(nnmairix-widget-get-values)
(nnmairix-widget-make-query-from-widgets)
(nnmairix-widget-build-editable-fields):
* lisp/international/mule-cmds.el (sort-coding-systems):
* lisp/international/mule-diag.el (list-character-sets-1):
* lisp/international/quail.el (quail-insert-decode-map):
* lisp/mail/reporter.el (reporter-dump-state):
* lisp/mail/supercite.el (sc-attribs-filter-namelist):
* lisp/pcmpl-gnu.el (pcmpl-gnu-zipped-files)
(pcmpl-gnu-bzipped-files):
* lisp/progmodes/cperl-mode.el (cperl-find-tags)
(cperl-write-tags, cperl-tags-hier-init, cperl-tags-treeify)
(cperl-menu-to-keymap, cperl-pod-spell):
* lisp/progmodes/gdb-mi.el (gdb-parent-mode):
* lisp/progmodes/make-mode.el (makefile-browser-fill):
* lisp/simple.el (transpose-lines):
* lisp/term.el:
* lisp/term/w32-win.el (w32-find-non-USB-fonts):
* lisp/textmodes/table.el (table--generate-source-scan-lines): Remove
redundant 'function's around lambdas.

Remove redundant 'function's around lambdas in mh/*.el

* lisp/mh-e/mh-alias.el (mh-alias-tstamp, mh-alias-filenames)
(mh-alias-address-to-alias):
* lisp/mh-e/mh-comp.el (mh-edit-again, mh-redistribute):
* lisp/mh-e/mh-identity.el (mh-identity-make-menu):
* lisp/mh-e/mh-utils.el (mh-help): Remove redundant 'function's around
lambdas.

Enhance syntax-tests.el to test nestable comments (Lisp style)

Also add some tests for braces and parse-partial-sexp amongst Lisp style
comments.

* test/src/syntax-tests.el (\;-in, \;-out): Add syntax for { and }.
(top-level): Add new tests for Lisp style comments.
(\#|-in, \#|-out): New functions.
(top-level): Add new tests for nested Lisp style comments, and mixtures of
nested comments with "ordinary" comments.

* test/src/syntax-resources/syntax-comments.txt (top-level): Add new test
fragments for #|...|#, etc.

Don't quote lambdas with 'function' in calc/*.el

* lisp/calc/calc-aent.el (calc-do-quick-calc)
(calc-do-calc-eval, math-build-parse-table):
* lisp/calc/calc-alg.el (math-polynomial-base):
* lisp/calc/calc-alg.el (math-is-poly-rec):
* lisp/calc/calc-arith.el (calcFunc-scf):
* lisp/calc/calc-arith.el (math-ceiling, math-round):
* lisp/calc/calc-arith.el (math-trunc-fancy, math-floor-fancy):
* lisp/calc/calc-ext.el (calc-init-extensions, calc-reset)
(calc-refresh-top, calc-z-prefix-help, calc-binary-op-fancy)
(calc-unary-op-fancy):
* lisp/calc/calc-forms.el (math-make-mod):
* lisp/calc/calc-frac.el (calcFunc-frac):
* lisp/calc/calc-funcs.el (calcFunc-euler):
* lisp/calc/calc-help.el (calc-full-help):
* lisp/calc/calc-lang.el (c, pascal, fortran, tex, latex, eqn)
(yacas, maxima, giac, math, maple):
* lisp/calc/calc-macs.el (calc-wrapper, calc-slow-wrapper):
* lisp/calc/calc-map.el (calc-get-operator, calcFunc-mapeqr)
(calcFunc-reducea, calcFunc-rreducea, calcFunc-reduced)
(calcFunc-rreduced, calcFunc-outer):
* lisp/calc/calc-misc.el (another-calc, calc-do-handle-whys):
* lisp/calc/calc-mode.el (calc-save-modes):
* lisp/calc/calc-mtx.el (math-col-matrix, math-mul-mat-vec):
* lisp/calc/calc-poly.el (math-sort-terms, math-poly-div-list)
(math-mul-list, math-sort-poly-base-list)
(math-partial-fractions):
* lisp/calc/calc-prog.el (calc-user-define-formula):
* lisp/calc/calc-rewr.el (math-rewrite, math-compile-patterns)
(math-compile-rewrites, math-parse-schedule)
(math-rwcomp-pattern):
* lisp/calc/calc-store.el (calc-var-name-map, calc-let)
(calc-permanent-variable, calc-insert-variables):
* lisp/calc/calc-stuff.el (calc-flush-caches, calcFunc-pclean)
(calcFunc-pfrac):
* lisp/calc/calc-units.el (math-build-units-table)
(math-decompose-units):
* lisp/calc/calc-vec.el (calcFunc-mrow, math-mat-col)
(calcFunc-mcol, math-mat-less-col, math-mimic-ident):
* lisp/calc/calc-yank.el (calc-edit):
* lisp/calc/calc.el
(calc-mode-var-list-restore-default-values)
(calc-mode-var-list-restore-saved-values, calc-mode, calc-quit):
* lisp/calc/calccomp.el (math-compose-expr)
(math-compose-matrix, math-vector-to-string): Don't quote lambdas with
'function'.

Add command to filter package menu by name or description

* lisp/emacs-lisp/package.el (package-menu-filter-by-description):
(package-menu-filter-by-name-or-description): New commands to filter
the package menu.  (Bug#44699)
(package-menu-mode-map): Bind the above new commands.
(package-menu-mode-menu): Add new commands to the menu.
* doc/emacs/package.texi (Package Menu): Document new commands.

Don't quote lambdas with function macro in generic-x.el

* lisp/generic-x.el (apache-conf-generic-mode, ini-generic-mode)
(reg-generic-mode, mailagent-rules-generic-mode)
(vrml-generic-mode, java-properties-generic-mode)
(alias-generic-mode, ansible-inventory-generic-mode)
(inetd-conf-generic-mode, etc-services-generic-mode)
(etc-passwd-generic-mode, etc-fstab-generic-mode)
(spice-generic-mode, astap-generic-mode): Don't quote lambdas with
function macro.

Test that substitute-command-keys preserves text properties

* test/lisp/help-tests.el
(help-substitute-command-keys/preserves-text-properties): New test.
(Bug#17052)

; Fix last change to bibtex.el

* lisp/textmodes/bibtex.el (bibtex-unify-case-convert): Clarify
docstring and remove leading asterisk.  Use defcustom :local tag.

perl-mode and cperl-mode: Recognize regex after "return"

* lisp/progmodes/cperl-mode.el (cperl-find-pods-heres): Add
"return" to the keywords which start a regex.

* lisp/progmodes/perl-mode.el (defconst): Add "return" to
'perl--syntax-exp-intro-keywords' (Bug#26850).

* test/lisp/progmodes/cperl-mode-tests.el (cperl-test-bug-28650):
New test (bug#26850).

Minor Edebug manual keystroke clarifications

* doc/lispref/edebug.texi (Edebug Misc): Also mention the `a'
binding to abort (bug#44697).  Also fix `d' function reference, and
add `P' reference.

Make the handwrite.el PS valid again

* lisp/play/handwrite.el (handwrite): Make the PS valid
(bug#44648).  Suggested by Omar Antolín <omar.antolin@gmail.com>.

Fix gnus-mime-display-alternative button natigation

* lisp/gnus/gnus-art.el (gnus-mime-display-alternative): Mark the
buttons correctly so that TAB can find them (bug#44690).

Use 'eshell-find-alias-function' instead of fboundp

* lisp/eshell/esh-cmd.el (eshell-invoke-directly): Fix problem
with (require 'em-tramp) making password prompting from "sudo
bash" no longer work (bug#43772).

Add new user option bibtex-unify-case-convert

* lisp/textmodes/bibtex.el (bibtex-unify-case-convert): New
variable (bug#44614).
(bibtex-format-entry): Use it (bug#44614).

Use lexical-binding in time-stamp.el

* lisp/time-stamp.el: Use lexical-binding.  Remove redundant :group
args.

Don't quote lambdas in net/*.el

* lisp/net/eudc-export.el (eudc-create-bbdb-record):
* lisp/net/eudc.el (eudc-print-attribute-value)
(eudc-display-records, eudc-process-form)
(eudc-filter-duplicate-attributes, eudc-filter-partial-records)
(eudc-add-field-to-records, eudc-query-with-words)
(eudc-query-form, eudc-menu):
* lisp/net/eudcb-bbdb.el (eudc-bbdb-extract-phones)
(eudc-bbdb-query-internal):
* lisp/net/mairix.el (mairix-widget-make-query-from-widgets)
(mairix-widget-build-editable-fields, mairix-widget-get-values):
Don't quote lambdas.

Don't quote lambdas in emacs-lisp/*.el

* lisp/emacs-lisp/cl-seq.el (cl--parsing-keywords, cl-sort):
* lisp/emacs-lisp/cl-macs.el (cl-typecase):
* lisp/emacs-lisp/cl-extra.el (cl-some, cl-every)
(cl--map-keymap-recursively):
* lisp/emacs-lisp/advice.el (ad-insert-argument-access-forms):
* lisp/emacs-lisp/edebug.el (edebug-sort-alist)
(edebug-set-windows):
* lisp/emacs-lisp/pp.el (pp-display-expression):
* lisp/emacs-lisp/regi.el (regi-interpret): Don't quote lambdas.

Merge from origin/emacs-27

75723ec212 (origin/emacs-27) ; * lisp/emacs-lisp/benchmark.el (benchm...
53e2a612ad ; * lib-src/make-fingerprint.c: Update commentary.
286c632772 Reformat argument commentary in etags.c
4ec740866a Make the invocation of combine-change-calls in comment-reg...
66bcec8838 * lisp/progmodes/cc-langs.el (c-<>-notable-chars-re): Fix ...
03eeab469e ; Update the expected result files in test/manual/etags.
d875a22bc6 Update the various INSTALL files

# Conflicts:
# INSTALL

; Merge from origin/emacs-27

The following commit was skipped:

e2c7b6372d Don't leave lock files after 'replace-buffer-contents'

Merge from origin/emacs-27

19da602991 Fix input method translation near read-only text
5aabf2cc7f Fix display of truncated R2L lines on TTY frames
daff3bda10 Avoid crashes when a reversed glyph row starts with a comp...
b697bb91a1 ; * .gitignore: src/fingerprint.c not generated since 2019...

Don't quote lambdas in calc/calcalg{2,3}.el

* lisp/calc/calcalg2.el (calcFunc-inv\', calcFunc-sqrt\')
(calcFunc-deg\', calcFunc-rad\', calcFunc-ln\')
(calcFunc-log10\', calcFunc-lnp1\', calcFunc-log\')
(calcFunc-log\'2, calcFunc-exp\', calcFunc-expm1\')
(calcFunc-sin\', calcFunc-cos\', calcFunc-tan\', calcFunc-sec\')
(calcFunc-csc\', calcFunc-cot\', calcFunc-arcsin\')
(calcFunc-arccos\', calcFunc-arctan\', calcFunc-sinh\')
(calcFunc-cosh\', calcFunc-tanh\', calcFunc-sech\')
(calcFunc-csch\', calcFunc-coth\', calcFunc-arcsinh\')
(calcFunc-arccosh\', calcFunc-arctanh\', calcFunc-bern\'2)
(calcFunc-euler\'2, calcFunc-gammag\'2, calcFunc-gammaG\'2)
(calcFunc-gammaP\'2, calcFunc-gammaQ\'2, calcFunc-betaB\')
(calcFunc-betaI\', calcFunc-erf\', calcFunc-erfc\')
(calcFunc-besJ\'2, calcFunc-besY\'2, calcFunc-sum)
(calcFunc-prod, calcFunc-integ, calcFunc-if, calcFunc-subscr)
(math-do-integral, calcFunc-integ, math-decompose-poly)
(math-solve-system-rec, math-solve-system-subst, math-solve-for)
(calcFunc-inv, calcFunc-sqrt, calcFunc-conj, calcFunc-abs)
(calcFunc-deg, calcFunc-rad, calcFunc-ln, calcFunc-log10)
(calcFunc-lnp1, calcFunc-exp, calcFunc-expm1, calcFunc-sin)
(calcFunc-cos, calcFunc-tan, calcFunc-arcsin, calcFunc-arccos)
(calcFunc-arctan, calcFunc-sinh, calcFunc-cosh, calcFunc-tanh)
(calcFunc-arcsinh, calcFunc-arccosh, calcFunc-arctanh):
* lisp/calc/calcalg3.el (calc-get-fit-variables)
(calcFunc-polint, calcFunc-ratint, math-all-vars-but): Don't quote
lambdas.

Various doc fixes for comp.el and comp.c

* lisp/emacs-lisp/comp.el: Remove redundant :group args.
(comp-async-cu-done-hook, comp-async-all-done-hook)
(comp-async-env-modifier-form, comp-dry-run)
(comp-ensure-native-compiler, comp-func-ret-typeset)
(comp-func-ret-range, comp-limple-lock-keywords)
(comp-make-curr-block):
* src/comp.c (Fcomp_el_to_eln_filename, Fcomp__init_ctxt)
(Fcomp_native_driver_options_effective_p)
(Fcomp__compile_ctxt_to_file, Fcomp_libgccjit_version)
(Fcomp__register_lambda, Fcomp__register_subr)
(Fcomp__late_register_subr, Fnative_elisp_load, syms_of_comp): Doc fixes.

Fix nativecomp cond-rw pass

* lisp/emacs-lisp/comp.el (comp-mvar-symbol-p): Improve it.
(comp-cond-rw-func): Fix logic for multiple predecessor on target
block.
* test/src/comp-tests.el (comp-test-cond-rw-1): New test.
* test/src/comp-test-funcs.el (comp-test-cond-rw-1-1-f)
(comp-test-cond-rw-1-2-f): New functions.

Don't quote lambdas in eshell/*.el

* lisp/eshell/em-basic.el (eshell-echo):
* lisp/eshell/em-cmpl.el (eshell-command-completion-function)
(eshell-default-completion-function, eshell-cmpl-initialize)
(eshell-complete-parse-arguments, eshell-complete-commands-list):
* lisp/eshell/em-dirs.el (eshell-complete-user-reference):
* lisp/eshell/em-hist.el (eshell-hist-unload-hook)
(eshell-hist-initialize):
* lisp/eshell/em-ls.el (eshell-ls-sort-entries):
* lisp/eshell/em-pred.el (eshell-modifier-alist)
(eshell-display-predicate-help, eshell-display-modifier-help)
(eshell-pred-substitute, eshell-split-members):
* lisp/eshell/em-prompt.el (eshell-prompt-function):
* lisp/eshell/em-smart.el (eshell-smart-unload-hook)
(eshell-smart-initialize, eshell-refresh-windows):
* lisp/eshell/em-unix.el (eshell-shuffle-files):
* lisp/eshell/esh-arg.el (eshell-parse-argument-hook):
* lisp/eshell/esh-cmd.el (eshell-cmd-initialize)
(eshell-parse-command):
* lisp/eshell/esh-mode.el (eshell-preinput-scroll-to-bottom)
(eshell-postoutput-scroll-to-bottom):
* lisp/eshell/esh-module.el (eshell-modules-list):
* lisp/eshell/esh-proc.el (eshell-read-process-name)
(eshell-round-robin-kill):
* lisp/eshell/esh-var.el (eshell-envvar-names)
(eshell-variables-list): Don't quote lambdas.

; * lisp/emacs-lisp/benchmark.el (benchmark-run): Fix docstring

; * lib-src/make-fingerprint.c: Update commentary.

New user options 'copy-region-blink-delay' and 'delete-pair-blink-delay'

* lisp/emacs-lisp/lisp.el (delete-pair-blink-delay): New defcustom.
(delete-pair): Use it.  (Bug#4136)

* lisp/simple.el (copy-region-blink-delay): New defcustom.
(indicate-copied-region): Use it.  (Bug#42865)
Thanks to Sean Whitton <spwhitton@spwhitton.name>.
(indicate-copied-region): Use 'query-replace-descr' not to show
newlines literally.  Use "Copied text" instead of misleading
"Saved text" (bug#42865).

* Improve `comp-fwprop-call'

* lisp/emacs-lisp/comp.el (comp-function-call-maybe-fold):
Document return value.
(comp-fwprop-call): Simplify and improve.

* Add more type specifiers

* lisp/emacs-lisp/comp.el (comp-known-type-specifiers): Add more
pure functions.

Reformat argument commentary in etags.c

* lib-src/etags.c (pfnote, consider_token, C_entries): Resurrect
original format of comments to function arguments.