reverted to earlier core-js typedef
reverted to earlier core-js typedef

alex3165/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,alex3165/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,alex3165/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,alex3165/react-mapbox-gl