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.

Playground Link

https://typescript-eslint.io/play/#ts=4.7.4&sourceType=module&code=C4TwDgpgBAggxsAlgewHYB4AqA+KBeKAbyjgENgIBzZAJxAC4pMoBfAKA4DMBXVBFVFAC2IAGK84WfFFTchAIwg1sAClL80AZ0bwkaLNgDaAXQCURNlBJbgUUjRqkQMB0+mH1e1JuMcr9x2dXEAA6TVpgFTUAGih5czxcQksra29bUgBJCiFpUkMABl9UtM1beWyIXIJ5Qt8UqwB6RqYAC0RNKAAbRFRoMBpkABNuOAhtBqhmyeaoACYAZgA2OcZMVuguiE5gAFpW0lQhqE1EIehkTjtBe0RgVqEIJDgoZEhHL2FuMriLq9BIFAAOSHEBA6IzFpA2QKJTg4HyRCUXrAIGvGjXKAQGFQAEQEKQyFQGhPbg0G6VIQhMgUah0KC7OKU6nkKi0EB+Eok4BkwRqZk0tn00idUHmRkqCo5Fm09l2UWoECmFIsZXsIA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1tiacTJTIAhtEK0ipWkOTJE0fJQ5N0UOdA7RI4MAF8QOoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA

Repro Code

type Action<T> = { category: T }


function myFunc<T = number>(actions: Action<T>[]) {
  const arrayArray = [actions]

  arrayArray.sort((a, b) => {
    const aItem = a[0]
    const bItem = b[0]

    // This line produces:
    //
    // 2362: The left-hand side of an arithmetic operation must be of type 'any',
    // 'number', 'bigint' or an enum type.
    //
    // return aItem.category - bItem.category

     return (aItem.category as any) - (bItem.category as any)
  })
}

ESLint Config

module.exports = {
  "rules": {
    "@typescript-eslint/no-unnecessary-type-assertion": "error"
  }
}

tsconfig

{
  "compilerOptions": {
    "strictNullChecks": true
  }
}

Expected Result

There should be no linting errors, since the as any type assertions are necessary.

Actual Result

The as any type assertions are reported as unnecessary.

Additional Info

No response

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