Fixes #14072

:has() was matching only against descendants or siblings, but not sibling's descendants.

Also, in a case like :has(> .foo > .bar) it was matching against children instead of descendants, so I had to drop the > optimization. But, to ensure that in case like :has(> .foo) it matches only the direct children, the inner selector is prepended with a selector of new type that matches only certain element.

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