javascript/typescript/tsx: Highlight private properties (#31527)

Closes #28411

Release Notes:

- Fixed the lack of highlighting for private properties in classes for
JavaScript/TypeScript/TSX files
b4a03989b1Ben Kunkle committed on 5/27/2025, 4:05:53 PM· committed by GitHubparent19b6892
3 files changedLine totals unavailable