Re: [PATCH 0/1] MR150: vkd3d-shader/hlsl: Ignore "unroll" attribute for loops.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d-shader/hlsl.y:
> %type <attr> attribute
>
> -%type <attr_list> attribute_list
> +%type <attr_list> attribute_list attribute_list_optional

Minor, but we put only one rule name per `%type` directive.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/150#note_29149