fix: Fix parsing of :global when CSS Modules is disabled

[kdy1]

Even when CSS Modules is disabled,

 @media (max-width: 870px) {
    :global(th.expiration-date-cell),
    :global(td.expiration-date-cell) {
      display: none;
    }
  }

is parsed as

Selector(:is(:CustomFunction { name: "global", arguments: TokenList([Token(Ident("th")), Token(Delim('.')), Token(Ident("expiration-date-cell"))]) }, :CustomFunction { name: "global", arguments: TokenList([Token(Ident("td")), Token(Delim('.')), Token(Ident("expiration-date-cell"))]) }), specificity = 0x400)

I got it using my fork, which allows printing selectors.

This looks like

:is(:global(th.expiration-date-cell), :global(td.expiration-date-cell))

---

x-ref: swc-project/plugins#205

Playground: https://lightningcss.dev/playground/index.html#%7B%22minify%22%3Afalse%2C%22nesting%22%3Afalse%2C%22customMedia%22%3Afalse%2C%22cssModules%22%3Afalse%2C%22analyzeDependencies%22%3Afalse%2C%22targets%22%3A%7B%22chrome%22%3A6225920%7D%2C%22include%22%3A0%2C%22exclude%22%3A0%2C%22source%22%3A%22%20%40media%20(max-width%3A%20870px)%20%7B%5Cn%20%20%20%20%3Aglobal(th.expiration-date-cell)%2C%5Cn%20%20%20%20%3Aglobal(td.expiration-date-cell)%20%7B%5Cn%20%20%20%20%20%20display%3A%20none%3B%5Cn%20%20%20%20%7D%5Cn%20%20%7D%22%2C%22visitorEnabled%22%3Afalse%2C%22visitor%22%3A%22%7B%5Cn%20%20Color(color)%20%7B%5Cn%20%20%20%20if%20(color.type%20%3D%3D%3D%20'rgb')%20%7B%5Cn%20%20%20%20%20%20color.g%20%3D%200%3B%5Cn%20%20%20%20%20%20return%20color%3B%5Cn%20%20%20%20%7D%5Cn%20%20%7D%5Cn%7D%22%2C%22unusedSymbols%22%3A%5B%5D%2C%22version%22%3A%22local%22%7D

[kdy1]

I think the problem is

lightningcss/src/rules/mod.rs

Lines 603 to 634 in d49fadb

	let incompatible = if style.selectors.0.len() > 1 && !style.is_compatible(*context.targets) {
	// The :is() selector accepts a forgiving selector list, so use that if possible.
	// Note that :is() does not allow pseudo elements, so we need to check for that.
	// In addition, :is() takes the highest specificity of its arguments, so if the selectors
	// have different weights, we need to split them into separate rules as well.
	if context.targets.is_compatible(crate::compat::Feature::IsSelector)
	&& !style.selectors.0.iter().any(|selector| selector.has_pseudo_element())
	&& style.selectors.0.iter().map(|selector| selector.specificity()).all_equal()
	{
	style.selectors =
	SelectorList::new(smallvec![
	Component::Is(style.selectors.0.clone().into_boxed_slice()).into()
	]);
	smallvec![]
	} else {
	// Otherwise, partition the selectors and keep the compatible ones in this rule.
	// We will generate additional rules for incompatible selectors later.
	let (compatible, incompatible) = style
	.selectors
	.0
	.iter()
	.cloned()
	.partition::<SmallVec<[Selector; 1]>, _>(|selector| {
	let list = SelectorList::new(smallvec![selector.clone()]);
	is_compatible(&list.0, *context.targets)
	});
	style.selectors = SelectorList::new(compatible);
	incompatible
	}
	} else {
	smallvec![]
	};

[kdy1]

I'm sorry. I'll just apply my visitor before calling .minify()