feat: support import.meta.hot?.accept

[sapphi-red]

Description

Add support for import.meta.hot?.accept.

refs #11317

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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[bluwy]

Nice!

[patak-dev]

This is great! Do you think we should wait until 4.2 to merge this one? I'm tempted to push it in a patch and consider it as a fix. Users may have expected this to work before.

[sapphi-red]

Much credit goes to Antony and Lukas, who implemented/improved tree-shaking optional chaining.

I think we can release in a patch. I did a quick search but didn't find a code relying on static parsing. Also even if a code like that exists, it'd be easy to workaround.