Merge from origin/emacs-26

1c6484e (origin/emacs-26) Fix incorrect cloning of eieio-instance-inh...
37436fe Fix cloning of eieio-named objects (Bug#22840)
fb65a36 Fix ibuffer-unmark-backward synopsis (bug#35572)
f77bd2b ; * src/lisp.h (DEFSYM): Fix inaccurate comment.
3b86e0b Clarify handling of long options (Bug#24949)
04340a8 Improve documentation of the daemon and emacsclient
3e29de2 * etc/NEWS.24: Belatedly announce delete-consecutive-dups.

diff --cc doc/emacs/cmdargs.texi
Simple merge

diff --cc doc/emacs/misc.texi
index 5f743927367544a585a061525d6266cbae72ebc2,fc6b4cf1e7cbd776e3be443dca75699917488977..8bb603f49fae2f98a7aa487e01ea9bf00adb70e1
--- 1/doc/emacs/misc.texi
--- 2/doc/emacs/misc.texi
+++ b/doc/emacs/misc.texi
@@@ -1983,11 -1925,10 +1983,14 @@@ omitted, @command{emacsclient} connect
  If you set @code{server-name} of the Emacs server to an absolute file
  name, give the same absolute file name as @var{server-name} to this
  option to instruct @command{emacsclient} to connect to that server.
+ You need to use this option if you started Emacs as daemon
+ (@pxref{Initial Options}) and specified the name for the server
+ started by the daemon.
  
 +Alternatively, you can set the @env{EMACS_SOCKET_NAME} environment
 +variable to point to the server socket.  (The command-line option
 +overrides the environment variable.)
 +
  @item -t
  @itemx --tty
  @itemx -nw

diff --cc lisp/emacs-lisp/eieio-base.el
Simple merge

diff --cc lisp/ibuffer.el
Simple merge

diff --cc src/lisp.h
Simple merge

diff --cc test/lisp/emacs-lisp/eieio-tests/eieio-tests.el
Simple merge