src/vs/editor/browser/viewParts/viewZones/viewZones.ts/ViewZones/_safeCallOnDomNodeTop
class ViewZones:	private _safeCallOnDomNodeTop(zone: IViewZone, top: number): void {
		if (typeof zone.onDomNodeTop === 'function') {
			try {
				zone.onDomNodeTop(top);
			} catch (e) {
				onUnexpectedError(e);
			}
		}
	}