Moved to progmodes/.

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diff --git a/lisp/which-func.el b/lisp/which-func.el
deleted file mode 100644
index 4b1dfca6f5b..00000000000
--- a/lisp/which-func.el
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@@ -1,256 +0,0 @@
-;;; which-func.el --- print current function in mode line
-
-;; Copyright (C) 1994, 1997, 1998, 2001, 2003 Free Software Foundation, Inc.
-
-;; Author:   Alex Rezinsky <alexr@msil.sps.mot.com>
-;;           (doesn't seem to be responsive any more)
-;; Keywords: mode-line, imenu, tools
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;; This package prints name of function where your current point is
-;; located in mode line. It assumes that you work with imenu package
-;; and imenu--index-alist is up to date.
-
-;; KNOWN BUGS
-;; ----------
-;; Really this package shows not "function where the current point is
-;; located now", but "nearest function which defined above the current
-;; point". So if your current point is located after end of function
-;; FOO but before begin of function BAR, FOO will be displayed in mode
-;; line.
-;; - if two windows display the same buffer, both windows
-;;   show the same `which-func' information.
-
-;; TODO LIST
-;; ---------
-;;     1. Dependence on imenu package should be removed.  Separate
-;; function determination mechanism should be used to determine the end
-;; of a function as well as the beginning of a function.
-;;     2. This package should be realized with the help of overlay
-;; properties instead of imenu--index-alist variable.
-
-;;; History:
-
-;; THANKS TO
-;; ---------
-;; Per Abrahamsen   <abraham@iesd.auc.dk>
-;;     Some ideas (inserting  in mode-line,  using of post-command  hook
-;;     and toggling this  mode) have  been   borrowed from  his  package
-;;     column.el
-;; Peter Eisenhauer <pipe@fzi.de>
-;;     Bug fixing in case nested indexes.
-;; Terry Tateyama   <ttt@ursa0.cs.utah.edu>
-;;     Suggestion to use find-file-hook for first imenu
-;;     index building.
-
-;;; Code:
-
-;; Variables for customization
-;; ---------------------------
-;;
-(defvar which-func-unknown "???"
-  "String to display in the mode line when current function is unknown.")
-
-(defgroup which-func nil
-  "Mode to display the current function name in the modeline."
-  :group 'tools
-  :version "20.3")
-
-(defcustom which-func-modes
-  '(emacs-lisp-mode c-mode c++-mode perl-mode cperl-mode makefile-mode
-                    sh-mode fortran-mode f90-mode)
-  "List of major modes for which Which Function mode should be used.
-For other modes it is disabled.  If this is equal to t,
-then Which Function mode is enabled in any major mode that supports it."
-  :group 'which-func
-  :type '(choice (const :tag "All modes" t)
-                 (repeat (symbol :tag "Major mode"))))
-
-(defcustom which-func-non-auto-modes nil
-  "List of major modes where Which Function mode is inactive till Imenu is used.
-This means that Which Function mode won't really do anything
-until you use Imenu, in these modes.  Note that files
-larger than `which-func-maxout' behave in this way too;
-Which Function mode doesn't do anything until you use Imenu."
-  :group 'which-func
-  :type '(repeat (symbol :tag "Major mode")))
-
-(defcustom which-func-maxout 500000
-  "Don't automatically compute the Imenu menu if buffer is this big or bigger.
-Zero means compute the Imenu menu regardless of size."
-  :group 'which-func
-  :type 'integer)
-
-(defcustom which-func-format '("[" which-func-current "]")
-  "Format for displaying the function in the mode line."
-  :group 'which-func
-  :type 'sexp)
-;;;###autoload (put 'which-func-format 'risky-local-variable t)
-
-(defvar which-func-cleanup-function nil
-  "Function to transform a string before displaying it in the mode line.
-The function is called with one argument, the string to display.
-Its return value is displayed in the modeline.
-If nil, no function is called.  The default value is nil.
-
-This feature can be useful if Imenu is set up to make more
-detailed entries (e.g., containing the argument list of a function),
-and you want to simplify them for the mode line
-\(e.g., removing the parameter list to just have the function name.)")
-
-;;; Code, nothing to customize below here
-;;; -------------------------------------
-;;;
-(require 'imenu)
-
-(defvar which-func-table (make-hash-table :test 'eq :weakness 'key))
-
-(defconst which-func-current
-  '(:eval (gethash (selected-window) which-func-table which-func-unknown)))
-;;;###autoload (put 'which-func-current 'risky-local-variable t)
-
-(defvar which-func-mode nil
-  "Non-nil means display current function name in mode line.
-This makes a difference only if `which-function-mode' is non-nil.")
-(make-variable-buffer-local 'which-func-mode)
-;;(put 'which-func-mode 'permanent-local t)
-
-(add-hook 'find-file-hook 'which-func-ff-hook t)
-
-(defun which-func-ff-hook ()
-  "File find hook for Which Function mode.
-It creates the Imenu index for the buffer, if necessary."
-  (setq which-func-mode
-        (and which-function-mode
-             (or (eq which-func-modes t)
-                 (member major-mode which-func-modes))))
-
-  (condition-case nil
-      (if (and which-func-mode
-               (not (member major-mode which-func-non-auto-modes))
-               (or (null which-func-maxout)
-                   (< buffer-saved-size which-func-maxout)
-                   (= which-func-maxout 0)))
-          (setq imenu--index-alist
-                (save-excursion (funcall imenu-create-index-function))))
-    (error
-     (setq which-func-mode nil))))
-
-(defun which-func-update ()
-  ;; "Update the Which-Function mode display for all windows."
-  ;; (walk-windows 'which-func-update-1 nil 'visible))
-  (which-func-update-1 (selected-window)))
-
-(defun which-func-update-1 (window)
-  "Update the Which-Function mode display for window WINDOW."
-  (with-selected-window window
-    (when which-func-mode
-      (condition-case info
-          (let ((current (which-function)))
-            (unless (equal current (gethash window which-func-table))
-              (puthash window current which-func-table)
-              (force-mode-line-update)))
-        (error
-         (which-func-mode -1)
-         (error "Error in which-func-update: %s" info))))))
-
-;;;###autoload
-(defalias 'which-func-mode 'which-function-mode)
-
-(defvar which-func-update-timer nil)
-
-;; This is the name people would normally expect.
-;;;###autoload
-(define-minor-mode which-function-mode
-  "Toggle Which Function mode, globally.
-When Which Function mode is enabled, the current function name is
-continuously displayed in the mode line, in certain major modes.
-
-With prefix ARG, turn Which Function mode on iff arg is positive,
-and off otherwise."
-  :global t :group 'which-func
-  (if which-function-mode
-      ;;Turn it on
-      (progn
-        (setq which-func-update-timer
-              (run-with-idle-timer idle-update-delay t 'which-func-update))
-        (dolist (buf (buffer-list))
-          (with-current-buffer buf
-            (setq which-func-mode
-                  (or (eq which-func-modes t)
-                      (member major-mode which-func-modes))))))
-    ;; Turn it off
-    (cancel-timer which-func-update-timer)
-    (setq which-func-update-timer nil)
-    (dolist (buf (buffer-list))
-      (with-current-buffer buf (setq which-func-mode nil)))))
-
-(defvar which-function-imenu-failed nil
-  "Locally t in a buffer if `imenu--make-index-alist' found nothing there.")
-
-(defun which-function ()
-  "Return current function name based on point.
-Uses `imenu--index-alist' or `add-log-current-defun-function'.
-If no function name is found, return nil."
-  (let (name)
-    ;; If Imenu is loaded, try to make an index alist with it.
-    (when (and (boundp 'imenu--index-alist) (null imenu--index-alist)
-               (null which-function-imenu-failed))
-      (imenu--make-index-alist)
-      (unless imenu--index-alist
-        (make-local-variable 'which-function-imenu-failed)
-        (setq which-function-imenu-failed t)))
-    ;; If we have an index alist, use it.
-    (when (and (boundp 'imenu--index-alist) imenu--index-alist)
-      (let ((alist imenu--index-alist)
-            (minoffset (point-max))
-            offset elem pair mark)
-        (while alist
-          (setq elem  (car-safe alist)
-                alist (cdr-safe alist))
-          ;; Elements of alist are either ("name" . marker), or
-          ;; ("submenu" ("name" . marker) ... ).
-          (unless (listp (cdr elem))
-              (setq elem (list elem)))
-          (while elem
-            (setq pair (car elem)
-                  elem (cdr elem))
-            (and (consp pair)
-                 (number-or-marker-p (setq mark (cdr pair)))
-                 (if (>= (setq offset (- (point) mark)) 0)
-                     (if (< offset minoffset) ; find the closest item
-                         (setq minoffset offset
-                               name (car pair)))
-                   ;; Entries in order, so can skip all those after point.
-                   (setq elem nil)))))))
-    ;; Try using add-log support.
-    (when (and (null name) (boundp 'add-log-current-defun-function)
-               add-log-current-defun-function)
-      (setq name (funcall add-log-current-defun-function)))
-    ;; Filter the name if requested.
-    (when name
-      (if which-func-cleanup-function
-          (funcall which-func-cleanup-function name)
-        name))))
-
-(provide 'which-func)
-
-;;; which-func.el ends here