Update Promise definition

[Martin-Luft]

Since TypeScript 2.4:

Type 'typeof Promise' is not a valid async function return type in ES5/ES3 because it does not refer to a Promise-compatible constructor value.

See microsoft/vscode#30228 and microsoft/vscode#30268

import { promise } from 'selenium-webdriver';
...
async setViewportSize(viewPortWidthInPx: number, viewPortHeightInPx: number): promise.Promise<void> {
...

[jleyba]

Looks like you filed this against the wrong project. Selenium does not use TypeScript

[Martin-Luft]

@jleyba sorry, I thought that you are responsible for the Selenium TypeScript definition files.

[SimonSchick]

@jleyba Just curious, have you considered shipping your own typings for TS? It's getting quiet popular!

[jleyba]

No, I've never done anything with TS. I barely have time to work on Selenium anymore as it is :(

Contributions are welcome though!