src/vs/workbench/contrib/markers/browser/markersViewActions.ts/MarkersFilters/constructor
class MarkersFilters:	constructor(options: IMarkersFiltersOptions, private readonly contextKeyService: IContextKeyService) {
		super();

		this._showErrors.set(options.showErrors);
		this._showWarnings.set(options.showWarnings);
		this._showInfos.set(options.showInfos);
		this._excludedFiles.set(options.excludedFiles);
		this._activeFile.set(options.activeFile);
		this.filterHistory = options.filterHistory;
	}