[no-unused-vars] is not correct in d.ts files

[Mister-Hope]

Repro

extends:
  - eslint:recommended

overrides:
  - files:
      - "*.ts"

    extends:
      - plugin:@typescript-eslint/eslint-recommended
      - plugin:@typescript-eslint/recommended
      - plugin:@typescript-eslint/recommended-requiring-type-checking

    plugins:
      - "@typescript-eslint"

    parserOptions:
      parser: "@typescript-eslint/parser"
      project:
        - "./tsconfig.json"
        - "./test-tsconfig.json"

shims-tsx.d.ts:

import Vue, { VNode } from "vue";

declare global {
  namespace JSX {
    type Element = VNode;
    type ElementClass = Vue;
    interface IntrinsicElements {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      [elem: string]: any;
    }
  }
}

Expected Result

Actual Result

warning: 'Vue' is defined but never used (@typescript-eslint/no-unused-vars) at src\typings\shims-tsx.d.ts:1:8:
> 1 | import Vue, { VNode } from "vue";
    |        ^
  2 |
  3 | declare global {
  4 |   namespace JSX {


warning: 'VNode' is defined but never used (@typescript-eslint/no-unused-vars) at src\typings\shims-tsx.d.ts:1:15:
> 1 | import Vue, { VNode } from "vue";
    |               ^
  2 |
  3 | declare global {
  4 |   namespace JSX {

Additional Info

Versions

package	version
@typescript-eslint/eslint-plugin	3.6.1
@typescript-eslint/parser	3.6.1
TypeScript	3.9.6
ESLint	7.4.0
node	12.18.2
npm	❌
yarn	1.22.4

[bradzacher]

Please use the search before filing new issues
#2292, #2026, #2287, #1678, #1596, #1302, etc.

https://github.com/typescript-eslint/typescript-eslint/issues?q=is%3Aissue+%22no-unused-vars%22+global+

Also please read the pinned issues before filing new issues - #1856