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=5.7.2&fileType=.ts&code=NoXQdAtghgDgFHAlAAgLwD5kB4DeyoBcyAZlADYDOApgDTIBGRplVyAvunoSedXYzxbtEQA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1tiacTJTIAhtEK0ipWkOTJE0fJQ5N0UOdA7RI4MAF8QOoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA&tokens=false

Repro Code

[].map(() => <{ a: false, b: false }>{ a: false, b: false })

ESLint Config

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

tsconfig

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

Expected Result

No syntax error after autofix

Actual Result

After removing TSTypeAssertion, the ObjectExpression is interpreted as an arrow function with labels

[].map(() => { a: false, b: false })

Additional Info

No response