MediaQueryListListener interface definition incorrect

[emartinpi]

TypeScript Version: 2.3.0

Looking at lib.es6.d.ts we have

interface MediaQueryListListener {
    (mql: MediaQueryList): void;
}

Expected behavior:
and it should be

interface MediaQueryListListener {
    (mql: MediaQueryListEvent): void;
}

MediaQueryListEvent should be defined as well because it does not exist

[mhegazy]

PRs welcomed. You can find more information about contributing lib.d.ts fixes at https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md#contributing-libdts-fixes.