src/vs/workbench/contrib/markers/browser/markersModel.ts/ResourceMarkers/markers
class ResourceMarkers:	get markers(): readonly Marker[] {
		if (!this._cachedMarkers) {
			this._cachedMarkers = flatten([...this._markersMap.values()]).sort(ResourceMarkers._compareMarkers);
		}
		return this._cachedMarkers;
	}