feat: add AST node for function bindings

[ota-meshi]

close #646

[changeset-bot]

🦋 Changeset detected

Latest commit: 0cb7429

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
svelte-eslint-parser	Minor

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[coveralls]

Pull Request Test Coverage Report for Build 12781652640

Details

• 133 of 136 (97.79%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 94.732%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/context/script-let.ts	68	69	98.55%
src/parser/converts/attr.ts	48	50	96.0%

Totals
Change from base Build 12780293638:	0.01%
Covered Lines:	10451
Relevant Lines:	10907

---

💛 - Coveralls

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/svelte-eslint-parser@647

commit: 0cb7429

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/svelte-eslint-parser@647

commit: 0cb7429

[baseballyama]

Thank you so much!