bug#58098: Improve composition rules for Gumrukhi

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh
>  <lumarzeli30@gmail.com>
> Date: Tue, 27 Sep 2022 01:30:31 +0530
> 
> --- a/lisp/international/fontset.el
> +++ b/lisp/international/fontset.el
> @@ -300,7 +300,8 @@ font-encoding-charset-alist
>       (ottoman-siyaq-number #x1ed01)
>       (mahjong-tile #x1F000)
>       (domino-tile #x1F030)
> -        (emoji #x1F300 #x1F600)))
> +        (emoji #x1F300 #x1F600)
> +        (chess-symbol #x1FA00 #x1FA67)))

I don't understand this part: why should we require #x1FA67?  Did you
perhaps mean this:

      (chess-symbol . [#x1FA00 #x1FA67])

> @@ -836,7 +837,8 @@ setup-default-fontset
>                      tai-tham
>                   mahjong-tile
>                   domino-tile
> -                    emoji))
> +                    emoji
> +                    chess-symbol))

We already have the setup for chess-symbol, below this line where you
are making changes.  Is it not enough for some reason?