Bug: false positive @typescript-eslint/no-unused-vars errors since update

[plehnen]

Before You File a Bug Report Please Confirm You Have Done The Following...

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have searched for related issues and found none that matched my issue.
• I have read the FAQ and my problem is not listed.

Issue Description

After updating ...

"@typescript-eslint/eslint-plugin": "^5.62.0",
"@typescript-eslint/parser": "^5.62.0",

...to a newer version, running eslint shows many @typescript-eslint/no-unused-vars errors, which aren't errors:

i.e.

export const XY: InjectionKey<Ref<boolean | ((arg: string) => boolean)>> = Symbol('XY'); // 'arg' is defined but never used              @typescript-eslint/no-unused-vars

export type CustomFiltersType = Record<
  string,
  {
    label?: (value: any) => string; // 'value' is defined but never used  @typescript-eslint/no-unused-vars
  }

// in vue props:
    disabledDate: {
      type: Function as PropType<(date: string) => boolean>, // 'date' is defined but never used  @typescript-eslint/no-unused-vars
    },
>;

Maybe related to #7211, but what's written there didn't solve it.

Reproduction Repository Link

https://github.com/plehnen/eslint-demo

Repro Steps

1. clone the repo
2. yarn install
3. yarn fix:lint

Versions

package	version
@typescript-eslint/eslint-plugin	^6.2.1
@typescript-eslint/parser	^6.2.1
@typescript-eslint/typescript-estree	^6.2.1
TypeScript	5.1.6
ESLint	8.46.0
node	18.16.0

[bradzacher]

but what's written there didn't solve it.

We'll that makes sense because the instructions in #7211 instructed you to add overrides for .ts files.

But you're seeing problems in .vue files...

It looks like the Vue stack doesn't currently support our v6 yet (eg vuejs/eslint-config-typescript#57).

You will have to wait for them to update before moving to the major, unfortunately.