Repro

Paste the below code into a file and lint it.

interface StringCollection
{
  get(
    index : number
  ) : string;
}

export default StringCollection;

Expected Result

ESLint should not produce any errors

Actual Result

ESLint produces a no-undef error.

Additional Info

Oddly, it also complains about me using new Map<T, U>() with the same rule. I am not sure if it is the same root cause, but I figured it was worth noting.

Versions

* I use Yarn instead of NPM