src/vs/workbench/browser/parts/editor/editorStatus.ts/ShowCurrentMarkerInStatusbarContribution/hasToUpdateStatus
class ShowCurrentMarkerInStatusbarContribution:	private hasToUpdateStatus(previousMarker: IMarker | null, currentMarker: IMarker | null): boolean {
		if (!currentMarker) {
			return true;
		}

		if (!previousMarker) {
			return true;
		}

		return IMarkerData.makeKey(previousMarker) !== IMarkerData.makeKey(currentMarker);
	}