Manage slot manipulation centrally and special case replace operations #1
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This is an attempt at fixing WICG/webcomponents#764. I first wrote an algorithm that combined the operations done by remove and insert. I then used that for replace and replace all. I then abstracted it to avoid duplication. I'm a little worried that this is not correct as this delays assigning slotables to a slot quite a bit, which I think might be observable in some cases.
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This is an attempt at fixing WICG/webcomponents#764.
I first wrote an algorithm that combined the operations done by remove and insert. I then used that for replace and replace all. I then abstracted it to avoid duplication.
I'm a little worried that this is not correct as this delays assigning slotables to a slot quite a bit, which I think might be observable in some cases.
(See WHATWG Working Mode: Changes for more details.)