fix(es/compat): Fix async generator

[kdy1]

Description:

Related issue:

• Closes Async generator for-await loop with no yield incorrectly yields iterator node when targeting es6 or lower #8805

[changeset-bot]

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Latest commit: bacfa6d

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[kdy1]

I'll wait for reviews because I'm not confident.

---

swc-bump:

• swc_core
• swc_ecma_compat_es2017

[Austaras]

I don't know how this actually work, but judging from babel code

yield _iterator.return() // normal async function
yield _awaitAsyncGenerator(_iterator.return()) // async generator function

[kdy1]

Thank you!