More CL cleanups and reduction of use of cl.el.

* woman.el, winner.el, vc/vc-rcs.el, vc/vc-hooks.el, vc/vc-hg.el:
* vc/vc-git.el, vc/vc-dir.el, vc/vc-bzr.el, vc/vc-annotate.el:
* textmodes/tex-mode.el, textmodes/sgml-mode.el, tar-mode.el:
* strokes.el, ses.el, server.el, progmodes/js.el, progmodes/gdb-mi.el:
* progmodes/flymake.el, progmodes/ebrowse.el, progmodes/compile.el:
* play/tetris.el, play/snake.el, play/pong.el, play/landmark.el:
* play/hanoi.el, play/decipher.el, play/5x5.el, nxml/nxml-mode.el:
* net/secrets.el, net/quickurl.el, midnight.el, mail/footnote.el:
* image-dired.el, ibuffer.el, ibuf-macs.el, ibuf-ext.el, hexl.el:
* eshell/eshell.el, eshell/esh-io.el, eshell/esh-ext.el:
* eshell/esh-cmd.el, eshell/em-ls.el, eshell/em-hist.el:
* eshell/em-cmpl.el, eshell/em-banner.el:
* url/url.el, url/url-queue.el, url/url-parse.el, url/url-http.el:
* url/url-future.el, url/url-dav.el, url/url-cookie.el:
* calendar/parse-time.el, test/eshell.el: Use cl-lib.
* wid-browse.el, wdired.el, vc/vc.el, vc/vc-mtn.el, vc/vc-cvs.el:
* vc/vc-arch.el, tree-widget.el, textmodes/texinfo.el:
* textmodes/refill.el, textmodes/css-mode.el, term/tvi970.el:
* term/ns-win.el, term.el, shell.el, ps-samp.el:
* progmodes/perl-mode.el, progmodes/pascal.el, progmodes/gud.el:
* progmodes/glasses.el, progmodes/etags.el, progmodes/cwarn.el:
* play/gamegrid.el, play/bubbles.el, novice.el, notifications.el:
* net/zeroconf.el, net/xesam.el, net/snmp-mode.el, net/mairix.el:
* net/ldap.el, net/eudc.el, net/browse-url.el, man.el:
* mail/mailheader.el, mail/feedmail.el:
* url/url-util.el, url/url-privacy.el, url/url-nfs.el, url/url-misc.el:
* url/url-methods.el, url/url-gw.el, url/url-file.el, url/url-expand.el:
Dont use CL.
* ibuf-ext.el (ibuffer-mark-old-buffers): Use float-time.
* eshell/esh-opt.el (eshell-eval-using-options): Quote code with
`lambda' rather than with `quote'.
(eshell-do-opt): Adjust accordingly.
(eshell-process-option): Simplify.
* eshell/esh-var.el:
* eshell/em-script.el: Require `esh-opt' for eshell-eval-using-options.
* emacs-pcase.el (pcase--dontcare-upats, pcase--let*)
(pcase--expand, pcase--u1): Rename pcase's internal `dontcare' pattern
to `pcase--dontcare'.
* emacs-cl.el (labels): Mark obsolete.
(cl--letf, letf): Move to cl-lib.
(cl--letf*, letf*): Remove.
* emacs-cl-lib.el (cl-nth-value): Use defalias.
* emacs-cl-macs.el (cl-dolist, cl-dotimes): Add indent rule.
(cl-progv): Rewrite.
(cl--letf, cl-letf): Move from cl.el.
(cl-letf*): New macro.
* emacs-cl-extra.el (cl--progv-before, cl--progv-after): Remove.

lisp/emacs-lisp/pcase.el

@@ -64,7 +64,7 @@
 ;; (defconst pcase--memoize-1 (make-hash-table :test 'eq))
 ;; (defconst pcase--memoize-2 (make-hash-table :weakness 'key :test 'equal))
 
-(defconst pcase--dontcare-upats '(t _ dontcare))
+(defconst pcase--dontcare-upats '(t _ pcase--dontcare))
 
 (def-edebug-spec
   pcase-UPAT
@@ -154,11 +154,12 @@ like `(,a . ,(pred (< a))) or, with more checks:
       (pcase--expand
        (cadr binding)
        `((,(car binding) ,(pcase--let* bindings body))
-         ;; We can either signal an error here, or just use `dontcare' which
-         ;; generates more efficient code.  In practice, if we use `dontcare'
-         ;; we will still often get an error and the few cases where we don't
-         ;; do not matter that much, so it's a better choice.
-         (dontcare nil)))))))
+         ;; We can either signal an error here, or just use `pcase--dontcare'
+         ;; which generates more efficient code.  In practice, if we use
+         ;; `pcase--dontcare' we will still often get an error and the few
+         ;; cases where we don't do not matter that much, so
+         ;; it's a better choice.
+         (pcase--dontcare nil)))))))
 
 ;;;###autoload
 (defmacro pcase-let* (bindings &rest body)
@@ -275,7 +276,7 @@ of the form (UPAT EXP)."
                              vars))))
                      cases))))
       (dolist (case cases)
-        (unless (or (memq case used-cases) (eq (car case) 'dontcare))
+        (unless (or (memq case used-cases) (eq (car case) 'pcase--dontcare))
           (message "Redundant pcase pattern: %S" (car case))))
       (macroexp-let* defs main))))
 
@@ -575,7 +576,7 @@ Otherwise, it defers to REST which is a list of branches of the form
            (upat (cdr cdrpopmatches)))
       (cond
        ((memq upat '(t _)) (pcase--u1 matches code vars rest))
-       ((eq upat 'dontcare) :pcase--dontcare)
+       ((eq upat 'pcase--dontcare) :pcase--dontcare)
        ((memq (car-safe upat) '(guard pred))
         (if (eq (car upat) 'pred) (put sym 'pcase-used t))
         (let* ((splitrest