camc314 4359a66953 fix(parser): reject TypeScript class modifiers in JavaScript (#27312) ...

Reject TypeScript-only class member modifiers in JavaScript with TS8009. Valid JavaScript modifiers and members named `declare`, `override`, or `readonly` remain accepted.

Reuse the existing modifier validation and storage, retaining its deduplication and keyword-span behavior. Coverage fixtures and updated conformance snapshots cover ordinary, repeated, and escaped modifiers.

fixes #27290
closes #27294

2026-10-04 11:05:16 +00:00

..

fail

fix(parser): reject TypeScript class modifiers in JavaScript (#27312)

2026-10-04 11:05:16 +00:00

pass

fix(parser): reject TypeScript class modifiers in JavaScript (#27312)

2026-10-04 11:05:16 +00:00