Fix bug#52467 by adding a new custom variable 'display-comint-buffer-action'

* lisp/window.el (display-comint-buffer-action): New `defcustom`,
defaults to 'display-buffer-same-window' for backward compatibility.
* lisp/cmuscheme.el (run-scheme, switch-to-scheme): Pass
'display-comint-buffer-action' to 'pop-to-buffer' instead
of using 'pop-to-buffer-same-window'.
* lisp/eshell/eshell.el (eshell): Likewise.
* lisp/shell.el (shell): Likewise.
* lisp/org/ol-eshell.el (org-eshell-open): Likewise.
* lisp/progmodes/inf-lisp.el (inferior-lisp): Likewise.
* lisp/progmodes/project.el (project-shell, project-eshell): Likewise.
* lisp/textmodes/tex-mode.el (tex-display-shell, tex-compile-default)
(tex-recenter-output-buffer): Pass 'display-comint-buffer-action'
to 'pop-to-buffer'.

lisp/cmuscheme.el

@@ -237,7 +237,7 @@ is run).
 	(inferior-scheme-mode)))
   (setq scheme-program-name cmd)
   (setq scheme-buffer "*scheme*")
-  (pop-to-buffer-same-window "*scheme*"))
+  (pop-to-buffer "*scheme*" display-comint-buffer-action))
 
 (defun scheme-start-file (prog)
   "Return the name of the start file corresponding to PROG.
@@ -357,7 +357,7 @@ With argument, position cursor at end of buffer."
   (interactive "P")
   (if (or (and scheme-buffer (get-buffer scheme-buffer))
           (scheme-interactively-start-process))
-      (pop-to-buffer-same-window scheme-buffer)
+      (pop-to-buffer scheme-buffer display-comint-buffer-action)
     (error "No current process buffer.  See variable `scheme-buffer'"))
   (when eob-p
     (push-mark)

lisp/eshell/eshell.el

@@ -260,7 +260,7 @@ information on Eshell, see Info node `(eshell)Top'."
 		   (t
 		    (get-buffer-create eshell-buffer-name)))))
     (cl-assert (and buf (buffer-live-p buf)))
-    (pop-to-buffer-same-window buf)
+    (pop-to-buffer buf display-comint-buffer-action)
     (unless (derived-mode-p 'eshell-mode)
       (eshell-mode))
     buf))

lisp/org/ol-eshell.el

@@ -46,7 +46,7 @@ followed by a colon."
          (eshell-buffer-name (car buffer-and-command))
          (command (cadr buffer-and-command)))
     (if (get-buffer eshell-buffer-name)
-	(pop-to-buffer-same-window eshell-buffer-name)
+	(pop-to-buffer eshell-buffer-name display-comint-buffer-action)
       (eshell))
     (goto-char (point-max))
     (eshell-kill-input)

lisp/progmodes/inf-lisp.el

@@ -308,7 +308,7 @@ quoted using shell quote syntax.
 			   "inferior-lisp" (car cmdlist) nil (cdr cmdlist)))
 	(inferior-lisp-mode)))
   (setq inferior-lisp-buffer "*inferior-lisp*")
-  (pop-to-buffer-same-window "*inferior-lisp*"))
+  (pop-to-buffer "*inferior-lisp*" display-comint-buffer-action))
 
 ;;;###autoload
 (defalias 'run-lisp 'inferior-lisp)

lisp/progmodes/project.el

@@ -1015,7 +1015,7 @@ if one already exists."
          (default-project-shell-name (project-prefixed-buffer-name "shell"))
          (shell-buffer (get-buffer default-project-shell-name)))
     (if (and shell-buffer (not current-prefix-arg))
-        (pop-to-buffer-same-window shell-buffer)
+        (pop-to-buffer shell-buffer display-comint-buffer-action)
       (shell (generate-new-buffer-name default-project-shell-name)))))
 
 ;;;###autoload
@@ -1031,7 +1031,7 @@ if one already exists."
          (eshell-buffer-name (project-prefixed-buffer-name "eshell"))
          (eshell-buffer (get-buffer eshell-buffer-name)))
     (if (and eshell-buffer (not current-prefix-arg))
-        (pop-to-buffer-same-window eshell-buffer)
+        (pop-to-buffer eshell-buffer display-comint-buffer-action)
       (eshell t))))
 
 ;;;###autoload

lisp/shell.el

@@ -758,7 +758,7 @@ Make the shell buffer the current buffer, and return it.
                  (current-buffer)))
   ;; The buffer's window must be correctly set when we call comint
   ;; (so that comint sets the COLUMNS env var properly).
-  (pop-to-buffer-same-window buffer)
+  (pop-to-buffer buffer)
 
   (with-connection-local-variables
    ;; On remote hosts, the local `shell-file-name' might be useless.

lisp/textmodes/tex-mode.el

@@ -2037,7 +2037,7 @@ In the tex shell buffer this command behaves like `comint-send-input'."
 
 (defun tex-display-shell ()
   "Make the TeX shell buffer visible in a window."
-  (display-buffer (tex-shell-buf))
+  (display-buffer (tex-shell-buf) display-comint-buffer-action)
   (tex-recenter-output-buffer nil))
 
 (defun tex-shell-sentinel (proc _msg)
@@ -2441,7 +2441,7 @@ Only applies the FSPEC to the args part of FORMAT."
 	(if cmds (tex-format-cmd (caar cmds) fspec))))))
 
 (defun tex-cmd-doc-view (file)
-  (pop-to-buffer (find-file-noselect file)))
+  (pop-to-buffer (find-file-noselect file) display-comint-buffer-action))
 
 (defun tex-compile (dir cmd)
   "Run a command CMD on current TeX buffer's file in DIR."
@@ -2698,7 +2698,7 @@ line LINE of the window, or centered if LINE is nil."
 	(window))
     (if (null tex-shell)
 	(message "No TeX output buffer")
-      (setq window (display-buffer tex-shell))
+      (setq window (display-buffer tex-shell display-comint-buffer-action))
       (with-selected-window window
 	(bury-buffer tex-shell)
 	(goto-char (point-max))

lisp/window.el

@@ -7474,6 +7474,14 @@ ALIST.  See `display-buffer' for details."
   :version "24.1"
   :group 'windows)
 
+(defcustom display-comint-buffer-action 'display-buffer-same-window
+  "The action to display a comint buffer."
+  :type 'display-buffer--action-function-custom-type
+  :risky t
+  :version "29.1"
+  :group 'windows
+  :group 'comint)
+
 (defconst display-buffer-fallback-action
   '((display-buffer--maybe-same-window  ;FIXME: why isn't this redundant?
      display-buffer-reuse-window