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

When using the new (as of TS 4.7) .mts file extension the const foo = <T>() => ... syntax for generic arguments is reserved similar to JSX files. The suggestion from tsc recommends defining an explicit constraint:

Since my function doesn't need or nor do I want a type constraint, but I need one for the syntax, I reached for the noop constraint of extends any, but then I was violating the no-unnecessary-type-constraint rule.

In this case, with the .mts extension and it's limited syntax I think it's unfair to say it "doesn't do anything and is unnecessary".

Reproduction Repository Link

https://github.com/spalger/reproduce-issues/tree/ts-eslint-no-unnecessary-type-constraint

Repro Steps

1. clone the repo with --branch

   git clone git@github.com:spalger/reproduce-issues.git --branch ts-eslint-no-unnecessary-type-constraint

2. npm i

3. npm run lint

Versions