Re: [webcomponents] :unresolved vs :not(:upgraded) (#418)

Ah, my bad, I'd been thrown off my experience with the v0 implementation in Blink.

Of the choices already listed, then, I'd prefer `:unresolved` (with the accompanying spec changes) or `:not(:upgraded)`. While I like the intent of `:unupgraded`, I fear it will be hard for people to visually parse (especially if they're not familiar with the upgrade terminology) and it feels like a mouthful.

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