Don't work with lodash.memoize

[inomdzhon]

I'm caching Intl.NumberFormat instance like next

import { memoize } from 'lodash';

const IntlNumberFormat = memoize(Intl.NumberFormat, (...args) => JSON.stringify(args));

Without polyfill all work correctly, but with polyfill I got error .format() is not a function.

And I really don't understand why we need this condition? 😃

Intl.js/dist/Intl.js

Line 2119 in 4bd382c

if (!this || this === Intl$1) {

I think this creates a problem with memoize (https://github.com/lodash/lodash/blob/4.17.10/lodash.js#L10539)

We already check for Intl exist here

Intl.js/dist/Intl.js

Line 5728 in 4bd382c

if (typeof Intl === 'undefined') {