bug#65578: Eglot with mouse

[Dmitry Gutov <dmitry@gutov.dev>]

On 28/08/2023 10:13, Juri Linkov wrote:
> xref-find-definitions-at-mouse uses save-excursion with
> mouse-set-point before calling xref-backend-identifier-at-point.
> But the same save-excursion with mouse-set-point can't be added
> around xref-find-definitions because save-excursion will restore
> the original position after visiting the found identifier.

Could we do that without additional save-excursion?

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index 0666b18cba1..0c3e34fe0a5 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -1637,7 +1637,9 @@ xref-find-definitions-at-mouse
             (mouse-set-point event)
             (xref-backend-identifier-at-point (xref-find-backend)))))
      (if identifier
-        (xref-find-definitions identifier)
+        (progn
+          (mouse-set-point event)
+          (xref-find-definitions identifier))
        (user-error "No identifier here"))))

  ;;;###autoload