bug#74642: 31.0.50; [Patch] Turn off current source line indicator when gdb buffer is killed

[Eli Zaretskii]

> From: Diancheng Wang <diancheng_wang@163.com>
> Date: Mon, 02 Dec 2024 15:04:46 +0800
> 
> diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
> index b60e21ff0ae..110b9f5ed46 100644
> --- a/lisp/progmodes/gdb-mi.el
> +++ b/lisp/progmodes/gdb-mi.el
> @@ -5278,6 +5278,7 @@ gdb-reset
>                (setq gud-minor-mode nil)
>                (kill-local-variable 'tool-bar-map)
>                (kill-local-variable 'gdb-define-alist))))))
> +  (gud-hide-current-line-indicator t)
>    (setq gdb-disassembly-position nil)
>    (setq overlay-arrow-variable-list
>          (delq 'gdb-disassembly-position overlay-arrow-variable-list))
> diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
> index a4e611277e4..ffd4dd70762 100644
> --- a/lisp/progmodes/gud.el
> +++ b/lisp/progmodes/gud.el
> @@ -3017,7 +3017,8 @@ gud-reset
>        (with-current-buffer buffer
>       (when gud-minor-mode
>         (setq gud-minor-mode nil)
> -       (kill-local-variable 'tool-bar-map))))))
> +       (kill-local-variable 'tool-bar-map)))))
> +    (gud-hide-current-line-indicator t))
>  
>  (defun gud-display-frame ()
>    "Find and obey the last filename-and-line marker from the debugger.

Thanks, but can you please describe the scenario in which the
indicator is not removed?  I guess I don't really understand what you
mean by "gdb buffer is killed": what I tried is simply end the
debugging session by typing "q RET" at the GDB prompt.  And that
removed the indicator.