src/vs/editor/contrib/suggest/suggestWidgetDetails.ts/SuggestDetailsOverlay/placeAtAnchor
class SuggestDetailsOverlay:	placeAtAnchor(anchor: HTMLElement) {
		const anchorBox = dom.getDomNodePagePosition(anchor);
		this._anchorBox = anchorBox;
		this._placeAtAnchor(this._anchorBox, this._userSize ?? this.widget.size);
	}