src/vs/workbench/browser/parts/editor/editorStatus.ts/ShowCurrentMarkerInStatusbarContribution/getType
class ShowCurrentMarkerInStatusbarContribution:	private getType(marker: IMarker): string {
		switch (marker.severity) {
			case MarkerSeverity.Error: return '$(error)';
			case MarkerSeverity.Warning: return '$(warning)';
			case MarkerSeverity.Info: return '$(info)';
		}

		return '';
	}