[@typescript-eslint/no-unused-vars] produces error in 4.14.0

[sfabriece]

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

Working code (4.13.0): https://github.com/sfabriece/typescript-eslint-repro/tree/old
Broken code (4.14.0): https://github.com/sfabriece/typescript-eslint-repro/tree/main

Instructions in both branches:

npm install
npm run lint

tsconfig in repro repo

debug output
lint-report.txt

Versions

package	version
@typescript-eslint/eslint-plugin	4.14.0
@typescript-eslint/parser	4.14.0
TypeScript	4.1.3
ESLint	7.18.0
node	15.5.1

[bradzacher]

Duplicate of #2941, #2942, #2945, #2947

Fixed in #2943

Please use the search next time.

[sfabriece]

@bradzacher it's not always easy to describe the problem. Without knowing the internals of the project it's hard to know if the other issues are related the one I'm experiencing. This is one of those cases.😄