src/vs/editor/common/viewLayout/viewLayout.ts/ViewLayout/setScrollPosition
class ViewLayout:	public setScrollPosition(position: INewScrollPosition, type: ScrollType): void {
		if (type === ScrollType.Immediate) {
			this._scrollable.setScrollPositionNow(position);
		} else {
			this._scrollable.setScrollPositionSmooth(position);
		}
	}