emacs-28 f3acc09377: ; Revert "Use file-in-directory-p instead of obsolete dired-in-this-tree-p"

[Tassilo Horn]

branch: emacs-28
commit f3acc09377f98ae18653eb01c11c57b6449c83af
Author: Tassilo Horn <tsdh@gnu.org>
Commit: Tassilo Horn <tsdh@gnu.org>

    ; Revert "Use file-in-directory-p instead of obsolete dired-in-this-tree-p"
    
    Fixes bug#56126.
    
    This reverts commit b425966b072792b7b22b845b5f2e39ff4f60b5ab.
---
 lisp/dired-aux.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/dired-aux.el b/lisp/dired-aux.el
index d47bcf0427..b62e94fa77 100644
--- a/lisp/dired-aux.el
+++ b/lisp/dired-aux.el
@@ -1868,7 +1868,7 @@ unless OK-IF-ALREADY-EXISTS is non-nil."
     (while blist
       (with-current-buffer (car blist)
        (if (and buffer-file-name
-                 (dired-in-this-tree-p buffer-file-name expanded-from-dir))
+                (dired-in-this-tree-p buffer-file-name expanded-from-dir))
            (let ((modflag (buffer-modified-p))
                  (to-file (replace-regexp-in-string
                            (concat "^" (regexp-quote from-dir))
@@ -2727,7 +2727,7 @@ This function takes some pains to conform to `ls -lR' 
output."
       (setq switches (string-replace "R" "" switches))
       (dolist (cur-ass dired-subdir-alist)
        (let ((cur-dir (car cur-ass)))
-         (and (file-in-directory-p cur-dir dirname)
+         (and (dired-in-this-tree-p cur-dir dirname)
               (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
                 (if cur-cons
                     (setcdr cur-cons switches)
@@ -2739,7 +2739,7 @@ This function takes some pains to conform to `ls -lR' 
output."
 (defun dired-insert-subdir-validate (dirname &optional switches)
   ;; Check that it is valid to insert DIRNAME with SWITCHES.
   ;; Signal an error if invalid (e.g. user typed `i' on `..').
-  (or (file-in-directory-p dirname (expand-file-name default-directory))
+  (or (dired-in-this-tree-p dirname (expand-file-name default-directory))
       (error  "%s: Not in this directory tree" dirname))
   (let ((real-switches (or switches dired-subdir-switches)))
     (when real-switches