master 5192906: Revert "* lisp/progmodes/xref.el (xref-pop-marker-stack): Don't obsolete."

[Mattias Engdegård]

branch: master
commit 51929066d5f11c3dc43e9181fcd051eac9bfd718
Author: Mattias Engdegård <mattiase@acm.org>
Commit: Mattias Engdegård <mattiase@acm.org>

    Revert "* lisp/progmodes/xref.el (xref-pop-marker-stack): Don't obsolete."
    
    This reverts commit f56408a6f0152cd46d1ea8a0985fbfeeb839ea06.
    
    As commented by Dmitry Gutov in [1], obsoleting `xref-pop-marker-stack`
    makes sense.
    
    [1] https://lists.gnu.org/archive/html/emacs-devel/2021-10/msg01870.html
---
 lisp/progmodes/xref.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index f2fc047..26188bb 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -432,7 +432,7 @@ The future stack is erased."
   (setcdr xref--history nil))
 
 ;;;###autoload
-(defalias 'xref-pop-marker-stack #'xref-go-back)
+(define-obsolete-function-alias 'xref-pop-marker-stack #'xref-go-back "29.1")
 
 ;;;###autoload
 (defun xref-go-back ()