Duplicated files do not check unused @ts-expect-error properly

Bug Report

🔎 Search Terms

redirectInfo, ts-expect-error

🕗 Version & Regression Information

Tested on 4.3.2, 4.9.5, and next (5.0.0-dev.20230204).

⏯ Playground Link

Reproduction: https://github.com/lamnhh/ts-expect-error-issue

💻 Code

There're 3 packages:

• package-a:

// @ts-expect-error global
export const SOMETHING: number = global.testNumber;

Anything that has an @ts-expect-error directive will work.

• a package-b that imports package-a
• anothe package-c that imports both package-a and package-b.

Install everything, then npm link package-b to use in package-c.

🙁 Actual behavior

Unused '@ts-expect-error' directive.

> typecheck
> tsc --noEmit

../package-b/node_modules/@lamnhh/package-a/index.ts:1:1 - error TS2578: Unused '@ts-expect-error' directive.

1 // @ts-expect-error global
  ~~~~~~~~~~~~~~~~~~~~~~~~~~


Found 1 error in ../package-b/node_modules/@lamnhh/package-a/index.ts:1

🙂 Expected behavior

tsc in package-c passes with no error.

Beginne mit dem Reproduktions-Repository unter https://github.com/lamnhh/ts-expect-error-issue. Installiere die drei Pakete, verlinke package-b mit package-c und führe tsc --noEmit in package-c aus, um die Diagnose zum unbenutzten @ts-expect-error aus package-a zu reproduzieren. Das Ziel ist erreicht, wenn package-c die Typprüfung ohne diese Diagnose besteht, während die Direktive in package-a weiterhin gültig bleibt.