Undo part of last change

* src/thread.h:
* src/keyboard.c:
* src/keyboard.h: Undo part of last change:
input_available_clear_time is again a global variable.

Avoid aborts when a thread signals an error

* src/thread.h (struct thread_state): Add members
m_waiting_for_input and m_input_available_clear_time.
(waiting_for_input, input_available_clear_time): New macros.
* src/keyboard.c (waiting_for_input, input_available_clear_time):
Remove; they are now macros that reference the current thread.
(Bug#25171)
* src/w32select.c: Don't include keyboard.h.

* test/src/thread-tests.el (thread-errors): New test.

Clean up compile-tests.el

Switch to lexical binding.  Make checkdoc happy.

* test/lisp/progmodes/compile-tests.el (compile--test-error-line)
(compile-test-error-regexps): Instead of checking a single Boolean
value, use `should' for each attribute of the message to be compared.
(compile-tests--test-regexps-data): Document sixth list element
TYPE.

; Change maintainer comment
Ref http://debbugs.gnu.org/10934#23

Improve previous cperl-mode change

* lisp/progmodes/cperl-mode.el (cperl-mode-abbrev-table):
Improve previous change.

Mark default cperl abbrevs as system ones

* lisp/progmodes/cperl-mode.el (cperl-mode):
Mark our abbrevs as system ones.  (Bug#10934)

Revert earlier Ffset change

* src/data.c (Ffset): Allow nil again, since it caused
eager macro-expansion failures.

Tweaks for message bogus address detection

* lisp/gnus/message.el (message-bogus-recipient-p):
Do not require "@", since some mailers deliver to local addresses
without one.  (Bug#23054)
Move "@.*@" from here...
(message-bogus-addresses): ...to here, so it can be customized.

Do not allow nil to be defined as a function

* lisp/emacs-lisp/byte-run.el (defun):
* src/data.c (Ffset): Do not allow "nil".  (Bug#25110)

Add some sanity checking of defun arglist

* lisp/emacs-lisp/byte-run.el (defun):
Check for malformed argument lists.  (Bug#15715)

Minor shell-mode fix for zsh

* lisp/shell.el (shell-mode): Prevent shell-dirstack-query
becoming confused by zsh abbreviations.  (Bug#24632)

Copyright-paperwork-exempt: yes

* Makefile.in (install-etc): Don't prepend $(DESTDIR) to commands in
system unit file.

; Fix copyright years in new files

; Update file name in comment

Support concurrency in Emacs Lisp

Merge branch 'test-concurrency'

* src/thread.c:
* src/thread.h:
* src/systhread.c:
* src/systhread.h: New files.
* src/xgselect.c (xg_select): Avoid using SAFE_NALLOCA and use
xnmalloc unconditionally.
* src/window.c (struct save_window_data): Rename current_buffer to
f_current_buffer.
* src/w32proc.c (sys_select): Change the function signature to
closer fit 'pselect' on Posix hosts.
* src/search.c:
* src/regex.h: Convert some globals to macros that reference
thread-specific values.
* src/process.c (pset_thread, add_non_keyboard_read_fd)
(add_process_read_fd, add_non_blocking_write_fd)
(recompute_input_desc, compute_input_wait_mask)
(compute_non_process_wait_mask, compute_non_keyboard_wait_mask)
(compute_write_mask, clear_waiting_thread_info)
(update_processes_for_thread_death, Fset_process_thread)
(Fprocess_thread): New functions.
(enum fd_bits): New enumeration.
(fd_callback_data): Add 'thread' and 'waiting_thread', rename
'condition' to 'flags'.
(set_process_filter_masks, create_process, create_pty)
(Fmake_serial_process, finish_after_tls_connection)
(connect_network_socket, deactivate_process)
(server_accept_connection, wait_reading_process_output)
(Fcontinue_process, Fstop_process, keyboard_bit_set)
(add_timer_wait_descriptor, add_keyboard_wait_descriptor)
(delete_keyboard_wait_descriptor): Use the new functions instead
of manipulating fd flags and masks directly.
(syms_of_process): Defsubr the new primitives.
* src/print.c (print_object): Print threads, mutexes, and
conditional variables.
* src/lisp.h (enum pvec_type): New values PVEC_THREAD, PVEC_MUTEX,
and PVEC_CONDVAR.
(XTHREAD, XMUTEX, XCONDVAR, THREADP, MUTEXP, CONDVARP)
(CHECK_THREAD, CHECK_MUTEX, CHECK_CONDVAR): New inline functions.
(XSETTHREAD, XSETMUTEX, XSETCONDVAR): New macros.
(struct handler): Add back byte_stack.  Rename lisp_eval_depth to
f_lisp_eval_depth.
* src/eval.c (specpdl_kind, specpdl_arg, do_specbind)
(rebind_for_thread_switch, do_one_unbind)
(unbind_for_thread_switch): New functions.
(init_eval): 'handlerlist' is not malloc'ed.
(specbind): Call do_specbind.
(unbind_to): Call do_one_unbind.
(mark_specpdl): Accept 2 arguments.
(mark_specpdl): Mark the saved value in a let-binding.
* src/emacs.c (main): Call init_threads_once, init_threads, and
syms_of_threads.
* src/data.c (Ftype_of): Support thread, mutex, and condvar
objects.
(Fthreadp, Fmutexp, Fcondition_variable_p): New functions.
(syms_of_data): DEFSYM and defsubr new symbols and primitives.
* src/bytecode.c (struct byte_stack, FETCH, CHECK_RANGE)
(BYTE_CODE_QUIT): Add back.
(exec_byte_code): Add back byte stack manipulation.
* src/alloc.c (cleanup_vector): Handle threads, mutexes, and
conditional variables.
(mark_stack): Now extern; accept additional argument 'bottom'.
(flush_stack_call_func): New function.
(garbage_collect_1): Call mark_threads and unmark_threads.  Don't
mark handlers.
* src/.gdbinit (xbytecode): Add back.

* test/src/thread-tests.el: New tests.
* test/src/data-tests.el (binding-test-manual)
(binding-test-setq-default, binding-test-makunbound)
(binding-test-defvar-bool, binding-test-defvar-int)
(binding-test-set-constant-t, binding-test-set-constant-nil)
(binding-test-set-constant-keyword)
(binding-test-set-constant-nil): New tests.

* doc/lispref/processes.texi (Processes and Threads): New
subsection.
* doc/lispref/threads.texi: New file
* doc/lispref/elisp.texi (Top): Include it.
* doc/lispref/objects.texi (Thread Type, Mutex Type)
(Condition Variable Type): New subsections.
(Type Predicates): Add thread-related predicates.
* doc/lispref/objects.texi (Editing Types):
* doc/lispref/elisp.texi (Top): Update higher-level menus.

* etc/NEWS: Mention concurrency features.

Fix error messages in thread.c

* src/thread.c (lisp_mutex_unlock, Fcondition_wait)
(Fcondition_notify, Fthread_join): Fix error messages.

Improve doc strings in thread.c

* src/thread.c (Fmake_condition_variable, Fcondition_wait)
(Fcondition_notify, Fcondition_mutex, Fcondition_name, Fmake_thread)
(Fthread_join, Fall_threads): Doc fixes.

Fix building with check-lisp-object-type

* src/thread.c (mark_one_thread): Use NILP to compare with
m_saved_last_thing_searched, which is a Lisp object.  Reported by
Andreas Politz <politza@hochschule-trier.de>.

Documentation and commentary improvements

* src/lisp.h:
* src/regex.c:
* src/xgselect.c (xg_select): Improve commentary and formatting.

* doc/lispref/objects.texi (Thread Type, Mutex Type)
(Condition Variable Type): New subsections.
(Type Predicates): Add thread-related predicates.
* doc/lispref/objects.texi (Editing Types):
* doc/lispref/elisp.texi (Top): Update higher-level menus.

Fix further problems with quoted file names in Tramp

* lisp/net/tramp.el (tramp-quoted-name-p, tramp-quote-name)
(tramp-unquote-name): Move defsubst ...
* lisp/net/tramp-compat.el (tramp-compat-file-name-quoted-p)
(tramp-compat-file-name-quote)
(tramp-compat-file-name-unquote): ... here. Adapt callees.

* lisp/net/tramp-cache.el (tramp-flush-file-property)
(tramp-flush-directory-property):
* lisp/net/tramp-gvfs.el (tramp-gvfs-url-file-name):
* lisp/net/tramp-sh.el (tramp-make-copy-program-file-name):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-file)
(tramp-smb-handle-substitute-in-file-name)
(tramp-smb-get-share, tramp-smb-get-localname): Handle quoted files.

*src/sysdep.c: Fix a comment.

Fix compilation error on Fedora 24

* src/sysdep.c [HAVE_H_ERRNO]: Remove declaration of h_errno.
Reported by Paul Eggert <eggert@cs.ucla.edu>.

Fix compilation warnings due to prototype of thread_select

* src/thread.h <int select_func>: Make the 5th and 6th arguments
be 'const'.
* src/process.c [WINDOWSNT]:
* src/w32proc.c: Make the 5th and 6th argument to sys_select be
'const'.

Fix compilation on Debian GNU/Linux

* src/thread.h: Include sys/types.h, for ssize_t that regex.h
uses.  Reported by Robert Marshall <robert.marshall@codethink.co.uk>.

Fix subtle errors with let-binding of localized variables

* src/eval.c (do_specbind): Don't require a "symbol" that is
actually a cons cell, in order to call set-default, as there are
no longer such bindings.  This makes do_specbind work like the
pre-concurrency implementation in specbind for bindings of
forwarded symbols.  Use specpdl_kind to access the type of the
binding.
(specpdl_kind): New function.

Document file-name-quote, file-name-unquote and file-name-quoted-p

* doc/lispref/files.texi (File Name Expansion):
* etc/NEWS: Mention file-name-quote, file-name-unquote and
file-name-quoted-p.

* lisp/files.el (file-name-non-special): Revert using
file-name-quote, file-name-unquote and file-name-quoted-p.

Fix bad quoting of python-shell-interpreter

`python-shell-calculate-command' was using `shell-quote-argument' as if
it was generating a shell command, but its callers don't pass the result
to a shell, and they expect to parse it with `split-string-and-unquote'.
This caused problems depending on the flavor of shell quoting in
effect (Bug#25025).

* lisp/progmodes/python.el (python-shell-calculate-command): Use
`combine-and-quote-strings' to quote the interpreter, so that it can be
parsed by `python-shell-make-comint' successfully using
`split-string-and-unquote'.

* src/lisp.h (struct terminal): Remove unnecessary forward decl.

Make read1 more reentrant

This is needed if ‘read’ is called soon after startup, before the
Unicode tables have been set up, and it reads a \N escape and
needs to look up a value the Unicode tables, a lookup that in turn
calls read1 recursively.  Although this change doesn’t make ‘read’
fully reentrant, it’s good enough to handle this case.
* src/lread.c (read_buffer_size, read_buffer): Remove static vars.
(grow_read_buffer): Revamp to use locals, not statics, and to
record memory allocation un the specpdl.  All callers changed.
(read1): Start with a stack-based buffer, and use the heap
only if the stack buffer is too small.  Use unbind_to to
free any heap buffer allocated.  Use bool for boolean.
Redo symbol loop so that only one call to grow_read_buffer
is needed.
(init_obarray): Remove no-longer-needed initialization.

Fix compilation warnings

* src/thread.c (Fmake_thread): Call emacs_abort, to avoid
compilation warning.

Fix unlikely substitute-command-keys memory leak

* src/doc.c (Fsubstitute_command_keys):
Free buffer when unwinding.

; Fix last patch

Add file-name-quoted-p, file-name-quote, file-name-unquote

* lisp/files.el (file-name-quoted-p, file-name-quote)
(file-name-unquote): New defsubst.
(find-file--read-only, find-file-noselect)
(file-name-non-special): Use them.

Add a NEWS entry.

Minor fix for symbol-file

* lisp/subr.el (symbol-file): Avoid false matches with "require"
elements in load-history.  (Bug#25109)

Fix Bug#24962

* lisp/buff-menu.el (list-buffers--refresh):
List buffers with name starting with " " if they visit a file.
* test/lisp/buff-menu-tests.el (buff-menu-24962):
Update test result as pass.

ediff-fixup-patch-map: Improve prompt

* lisp/vc/ediff-ptch.el (ediff-fixup-patch-map):
Make clear in the prompt when we are applying a multi patch.

Retain message logging in map-y-or-n-p

* lisp/emacs-lisp/map-ynp.el (map-y-or-n-p):
Stop disabling logging to Messages buffer.  (Bug#13326)

Doc fix for recent change

* lisp/simple.el (region-modifiable-p): Doc fix.

Quieten make-dist default operation

* make-dist: Add --verbose option.  Default to quieter operation.

Fix regression introduced by commit 7b1e97f

* lisp/ibuf-ext.el (ibuffer-decompose-filter): Use cdr instead
of cadr; required after commit 20f5a5b.

Put post-25 ChangeLog entries into ChangeLog.3

* ChangeLog.2: Copy from emacs-25 branch.
* ChangeLog.3: New file, with changes only in master.
* Makefile.in (CHANGELOG_HISTORY_INDEX_MAX): Bump from 2 to 3.

Merge from origin/emacs-25

eeecac7 Fix minor quoting problems in doc strings

; Merge from origin/emacs-25

The following commit was skipped:

da71c89 * lisp/emacs-lisp/easy-mmode.el (define-minor-mode): Fix docs...

Merge from origin/emacs-25

35ce3fb Don't assume window-point and point are the same

; Merge from origin/emacs-25

The following commit was skipped:

a3487a8 Fix bug#25087

Merge from origin/emacs-25

ba2847f ; * lisp/vc/ediff-util.el (ediff-janitor): Fix last change.  ...
8b43f97 * lisp/vc/ediff-util.el (ediff-janitor): Doc fix.  (Bug#25046)
c20035c ; * doc/emacs/programs.texi (Man Page): Fix last change.
93d8346 Improve indexing of 'man'

; Merge from origin/emacs-25

The following commits were skipped:

c491989 Port to Sun C 5.14
95eb641 Fix mail-combine-fields

Merge from origin/emacs-25

d31298d Fix documentation of `window-combination-resize'
2086f4c Typo fixes in elisp manual

; Merge from origin/emacs-25

The following commit was skipped:

f6da597 ; Revert "Guard terminal par. in XTerm mouse mode"

Merge from origin/emacs-25

3980903 ; Update ChangeLog.2, etc/AUTHORS and ldef-boot.el for Emacs ...
5878abf Fix 'expand-file-name' during startup on MS-Windows

; Merge from origin/emacs-25

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4606529 ; ChangeLog.2 update

Merge from origin/emacs-25

9a857b9 * admin/authors.el (authors-renamed-files-alist): Addition.
6d27423 Tweak refcard note about documentation location
e46a134 Improve treatment of Fortran's "class is"

; Merge from origin/emacs-25

The following commits were skipped:

3674317 Bump Emacs version to 25.1.90
938e316 ; Revert "Bump Emacs version"
596289b Bump Emacs version
dcfe4d1 ; ChangeLog.2 update

Merge from origin/emacs-25

93c0f51 Handle TeX comments when making new paragraph
e0884f1 Restore keystroke echo in 'C-q'
a6213ce Improve documentation of 'current-word'
0828126 Fix a typo in an Eshell defcustom
2e361c7 Minor copyedits of electric-pair-mode
7499ee8 ; Minor copyedit in the Emacs manual
45b652b Fix documentation of 'invocation-directory'
7f43d7c * admin/authors.el (authors-aliases): Add an entry.
ba48880 ; Fix pl-refcard.tex

; Merge from origin/emacs-25

The following commit was skipped:

d4e1549 Guard terminal parameter in XTerm mouse mode

Merge from origin/emacs-25

7287e96 ; * src/lread.c (openp): Correct an inaccuracy in commentary.

; Merge from origin/emacs-25

The following commit was skipped:

3f2b497 * etc/AUTHORS: Regenerate the AUTHORS file

Merge from origin/emacs-25

3d63b48 Update ChangeLog files and authors.el
9d30264 Fix menu bindings of Dired 'A' and 'Q' commands
a725592 Avoid errors in shr-pixel-column due to dedicated windows
3138598 Update format-time-string documentation

delete-trailing-whitespace: handle read-only text in buffer

* lisp/simple.el (region-modifiable-p): New function.
(delete-trailing-whitespace): Us it to avoid trying to delete read-only text.

Fix minor quoting problems in doc strings

Fix network streams.

The original code messed up flags in fd_callback_data[], and also
didn't call add_process_read_fd for process-related file descriptors.

Fix --enable-gcc-warnings --with-ns on Fedora

* src/Makefile.in (NON_OBJC_CFLAGS): New macro.
(ALL_OBJC_CFLAGS): Use it.
(EMACS_CFLAGS): New macro, with most of the old ALL_CFLAGS.
(ALL_CFLAGS, ALL_OBJC_FLAGS): Use it.

Minimize spurious diffs from master.

Fix problems in quoting Tramp file names

* lisp/net/tramp.el (tramp-get-remote-tmpdir): Add also hop to result.
(tramp-unquote-shell-quote-argument): New defun.
(tramp-shell-quote-argument):
* lisp/net/tramp-sh.el (tramp-do-copy-or-rename-file-out-of-band)
(tramp-make-copy-program-file-name):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-directory)
(tramp-smb-handle-file-acl, tramp-smb-handle-set-file-acl)
(tramp-smb-shell-quote-argument): Use it.

; Fix previous commit

ibuffer-map-deletion-lines: Re-included it

It was deleted in previous commit, but it's referenced
by the macro 'define-ibuffer-op'.
* lisp/ibuffer.el (ibuffer-map-deletion-lines): Reinclude it.

ibuffer-unmark-all: simplify code

* lisp/ibuffer.el (ibuffer-map-deletion-lines): Delete it.
(ibuffer-unmark-all): Simplify code.

define-ibuffer-filter: Discard wrong filters

* lisp/ibuf-macs.el (define-ibuffer-filter): Do not store
in 'ibuffer-filtering-qualifiers' a wrong filter (Bug#25042).
* test/lisp/ibuffer-tests.el (ibuffer-test-Bug25042): Add test.

* lisp/emacs-lisp/easy-mmode.el (define-minor-mode): Fix docstring

so that it matches the actual implementation.
See https://lists.gnu.org/archive/html/help-gnu-emacs/2016-04/msg00071.html

ibuffer-decompose-filter-group avoid unwanted side effects

* lisp/ibuf-ext.el (ibuffer-delete-alist): Remove it.
(ibuffer-remove-alist): New defun; it supersedes 'ibuffer-delete-alist'.
All callers changed (Bug#25058).
* test/lisp/ibuffer-tests.el (ibuffer-test-Bug25058): Add test.

ibuffer-unmark-backward: Unmark the region when is active

* lisp/ibuffer.el (ibuffer-unmark-backward):
Use 'ibuffer-get-region-and-prefix'; call 'ibuffer-unmark-forward'
with the region boundary as the first 2 arguments (Bug#24987).

Docstring improvement for seq-some (bug#25129)

* lisp/emacs-lisp/seq.el (seq-some): Make the docstring less confusing
  regarding the returned value.

dired-unmark-backward: Unmark the region when is active

* lisp/dired.el (dired-unmark-backward): Call 'dired-unmark' with
a non-nil second argument (Bug#24986).

New test file for ediff

Fix previous commit.
* test/lisp/vc/ediff-ptch-tests.el: New test.

ediff-context-diff-label-regexp: Detect the end of second file

* lisp/vc/ediff-ptch.el (ediff-context-diff-label-regexp): Skip
'\n' in file names (Bug#25010).
* test/lisp/vc/ediff-ptch-tests.el: New file.
(ibuffer-test-bug25010): Add test for Bug#25010.

ibuffer-decompose-filter: Avoid side effects on error

* lisp/ibuf-ext.el (ibuffer-decompose-filter):
Update 'ibuffer-filtering-qualifiers' only if there is no error (Bug#24997).
* test/lisp/ibuffer-tests.el (ibuffer-test-Bug24997):
Update test result as pass.

ibuffer: compare marks with EQ

* lisp/ibuffer (ibuffer-update-title-and-summary, ibuffer-redisplay-current)
(ibuffer-buffer-name-face, ibuffer-unmark-all)
(ibuffer-count-deletion-lines, ibuffer-buffer-names-with-mark):
Use 'eq' instead of 'char-equal' when comparing mark characters (Bug#25000).
* test/lisp/ibuffer-tests.el (ibuffer-test-Bug25000):
Update test result as pass.

ibuffer-saved-filters: Remove extra nesting level

Fix Bug#25049.
* lisp/ibuf-ext.el (ibuffer-saved-filters): Remove extra
nesting level; add transparent setter to adjust old-format values;
update doc string.
(ibuffer-save-filters): Remove extra level of nesting
in ibuffer-saved-filters values when saving new filters.
(ibuffer-old-saved-filters-warning): New variable with
clickable message with repair options to be displayed
as a warning if 'ibuffer-repair-saved-filters' detects
a format mismatch.
(ibuffer-repair-saved-filters): Add new command to check and
repair saved filters format.
(ibuffer-included-in-filter-p, ibuffer-decompose-filter):
Change access of saved filter data (cadr->cdr) to account
for reduced nesting.
* test/lisp/ibuffer-tests.el (ibuffer-save-filters):
New test; check that filters are saved in the proper format.

Clean out some IRIX cruft

* etc/MACHINES: Remove obsolete discussion of IRIX.
* src/process.c (allocate_pty) [__sgi]: Remove SGI-specific code.
(create_process) [HAVE_PTYS]: Don't worry about IRIX.
* src/syntax.c (scan_sexps_forward): Remove obsolete comment.
* src/unexelf.c [__sgi]: Don't include <syms.h>.
(unexec) [__sgi]: Remove SGI-specific code.

Simplify FUNCTIONP implementation

* src/bytecode.c (exec_byte_code):
* src/image.c (parse_image_spec):
Prefer FUNCTIONP (x) to !NILP (Ffunctionp (x)).
* src/eval.c (FUNCTIONP): Move here ...
* src/lisp.h: ... from here.  No longer inline, as that
bloats the text and does not help speed (at least on my platform).
(functionp): Remove this name, since callers use FUNCTIONP.

Don't assume window-point and point are the same

The function `cursor-sensor--detect' calls `bobp' to decide whether to
check properties at (1- (window-point)).  However, (window-point) may be
at beginning of buffer, even if (point) is not.  In this case an
`args-out-of-range' error will be signaled (Bug#25104).

* lisp/emacs-lisp/cursor-sensor.el (cursor-sensor--detect): Check the
value of (window-point) against (point-min), rather than (bobp) to
decide if (1- (window-point)) is accessible.

Give test-completion's PREDICATE the hashtable key

For hashtable entries with symbol keys, `test-completion' would convert
the key to a string before calling PREDICATE, unlike `try-completion'
and `all-completions'.

* src/minibuf.c (Ftest_completion): Pass original key from hashtable.

Give test-completion's PREDICATE full alist entry

Since 2016-06-26 "Fix test-completion with completion-regexp-list", when
calling test-completion with an alist collection, the predicate was
recieving the string value instead of the alist entry (Bug#24966).

* src/minibuf.c (Ftest_completion): Don't modify the found element, just
test STRING against `completion-regexp-list'.
* test/src/minibuf-tests.el: New tests for `try-completion',
`all-completions', and `test-completion'.

Fix ert-tests when running compiled

* test/lisp/emacs-lisp/ert-tests.el (ert-test-deftest): Don't test for
specific macroexpansion, just check result of evaluation.
(ert-test-record-backtrace): Don't hardcode representation of closure in
expected backtrace, this lets the test succeed even when the test code
is compiled.

* lisp/emacs-lisp/ert.el (ert--expand-should-1): Also pass
`byte-compile-macro-environment' to `macroexpand', this allows the
`should' macro to properly handle macroexpansion of macros that were
defined in the same file when it's being compiled (Bug #17851).

Make "g" in vc push/pull buffers re-push/pull

* lisp/vc/vc-bzr.el (vc-bzr--pushpull):
* lisp/vc/vc-git.el (vc-git--pushpull):
* lisp/vc/vc-hg.el (vc-hg--pushpull):
Set compile-command so that "g" works.  (Bug#11446)

Change two _Noreturn functions to return void

This is a bit clearer than _Noreturn functions that (do not)
return a non-void type.
* src/callproc.c (call_process) [MSDOS]:
Use 'status' local to record status.
(child_setup): Return CHILD_SETUP_TYPE.
* src/data.c, src/lisp.h (wrong_type_argument): Return void.
All callers changed.
* src/lisp.h (CHILD_SETUP_TYPE): New macro.

Fix the test suite

* test/automated/bindings.el: Contents moved to
test/src/data-tests.el.
* test/automated/threads.el: Moved to test/src/thread-tests.el.

Fix a typo in bytecode.c.

Fix GPG bug introduced by Oct file-missing change

Problem with visiting nonexistent .gpg file
reported by Herbert J Skuhra.
* lisp/epa-file.el (epa-file--find-file-not-found-function):
(epa-file-insert-file-contents, epa-file-write-region):
Signal file-missing or file-error instead of epa-error.

Tweak recent flymake change

* lisp/progmodes/flymake.el (flymake-report-fatal-status):
Avoid double message when flymake-log-level >= 0.
* doc/misc/flymake.texi (Customizable variables):
No longer mention flymake-gui-warnings-enabled.

Make TAB and M-TAB run widget-forward and widget-backward (bug#25091)

* lisp/gnus/mm-decode (mm-convert-shr-links): Avoid `shr-next-link'
and `shr-previous-link' so TAB and M-TAB run `widget-forward' and
`widget-backward' instead (bug#25091).

Fix compilation problems.

Fix merged code in process.c and eval.c.

Remove compat code in Tramp

* lisp/net/tramp.el (tramp-parse-time-months): Remove.

* lisp/net/tramp-compat.el (top): Require parse-time.

* lisp/net/tramp-smb.el (tramp-smb-read-file-entry):
Use `parse-time-months'.

Don't try to split side windows in ibuffer (Bug#25115)

* lisp/ibuffer.el (ibuffer-confirm-operation-on): Don't try to
split a side window (Bug#25115).

* src/lisp.h: Update comment to kick -Og down the road.

More image-dired refactoring

* lisp/image-dired.el: Remove TODO comment. This appears to have been
implemented in 5d7433a "image-dired: Signal an error before calling a
missing executable".
(image-dired-cmd-create-standard-thumbnail-command): Use %p specifier.
Add :version.
(image-dired-display-thumbs, image-dired-create-thumbs): Use dolist and
when. Remove superfluous call to image-dired-thumb-name. Move single nil
binding and setq into dolist form.

Merge branch 'concurrency'

Conflicts (resolved):
configure.ac
src/Makefile.in
src/alloc.c
src/bytecode.c
src/emacs.c
src/eval.c
src/lisp.h
src/process.c
src/regex.c
src/regex.h

Implement quoting the local part of a remote file name

* doc/emacs/files.texi (Quoted File Names):
* etc/NEWS: Mention quoting the local part of a remote file name.

* lisp/net/tramp.el (tramp-dissect-file-name): Check with
`tramp-tramp-file-p'.
(tramp-quoted-name-p, tramp-quote-name, tramp-unquote-name):
New defsubst.
(tramp-handle-substitute-in-file-name)
(tramp-handle-make-auto-save-file-name): Handle quoted files.
(tramp-shell-quote-argument): Unquote argument.

* lisp/net/tramp-sh.el (tramp-sh-handle-file-truename):
Handle quoted files.

* test/lisp/net/tramp-tests.el (tramp--test-expensive-test): New defvar.
(tramp--test-make-temp-name): New argument QUOTED.
(tramp-test01-file-name-syntax)
(tramp-test02-file-name-dissect)
(tramp-test04-substitute-in-file-name)
(tramp-test05-expand-file-name, tramp-test07-file-exists-p)
(tramp-test08-file-local-copy)
(tramp-test09-insert-file-contents)
(tramp-test10-write-region, tramp-test11-copy-file)
(tramp-test12-rename-file, tramp-test13-make-directory)
(tramp-test14-delete-directory, tramp-test15-copy-directory)
(tramp-test16-directory-files)
(tramp-test17-insert-directory)
(tramp-test18-file-attributes)
(tramp-test19-directory-files-and-attributes)
(tramp-test20-file-modes, tramp-test21-file-links)
(tramp-test22-file-times, tramp-test23-visited-file-modtime)
(tramp-test24-file-name-completion, tramp-test25-load)
(tramp-test26-process-file, tramp-test27-start-file-process)
(tramp-test28-shell-command, tramp-test30-vc-registered)
(tramp-test31-make-auto-save-file-name)
(tramp--test-check-files)
(tramp-test35-asynchronous-requests): Test also quoted file names.
(tramp--test-shell-command-to-string-asynchronously): Rename.
(tramp-test29-environment-variables): Use it.