message: FIX alwaysFn by copying static properties unto fn
diff: @@ -288,9 +288,9 @@ export function addShimsToJSDOM(window) {
  const alwaysFn = C =>
  // eslint-disable-next-line func-names
  - function() {
  + Object.assign(function() {
  return new C();
  - };
  + }, C);
  class IntlDateTimeFormatMock extends IntlFormatMock {}
  class IntlNumberFormatMock extends IntlFormatMock {}
  