bug#64595: 30.0.50; 13-years old commented code in src/data.c:1608 (set_internal)

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Date: Thu, 13 Jul 2023 12:31:03 +0000
> 
> While reading the sources, I found the following commented piece of
> code in set_internal:
> 
>   /* If restoring in a dead buffer, do nothing.  */
>   /* if (BUFFERP (where) && NILP (XBUFFER (where)->name))
>       return; */
> 
> This code has been changed 13 years ago and also commented immediately
> (in the same commit):
> 
> 94b612ad880e0d6eab6659347cb66e3a5310f8be
> Author:     Stefan Monnier <monnier@iro.umontreal.ca>
> AuthorDate: Fri May 7 16:33:00 2010 -0400
> 
> Try and fix unbind_to when localness of binding has changed
> * eval.c (unbind_to): Don't unbind a local binding into the global
> binding when the local binding disappeared.  Inversely, don't unbind
> a global binding into a newly created local binding.
> * data.c (set_internal): Make its `buf' arg into a `where' arg so we
> can specify the frame to use, when applicable.  Adjust callers.
> 
> -  if (buf == 0)
> -    buf = current_buffer;
> -
>    /* If restoring in a dead buffer, do nothing.  */
> -  if (NILP (buf->name))
> -    return;
> +  /* if (BUFFERP (where) && NILP (XBUFFER (where)->name))
> +      return; */
> 
> I assume that after 13 years, it is safe to remove it.

Stefan?