src/vs/workbench/contrib/markers/browser/markersView.ts/MarkersView/getResourceMarkers
class MarkersView:	private getResourceMarkers(): ResourceMarkers[] {
		if (!this.filters.activeFile) {
			return this.markersModel.resourceMarkers;
		}

		let resourceMarkers: ResourceMarkers[] = [];
		if (this.currentActiveResource) {
			const activeResourceMarkers = this.markersModel.getResourceMarkers(this.currentActiveResource);
			if (activeResourceMarkers) {
				resourceMarkers = [activeResourceMarkers];
			}
		}

		return resourceMarkers;
	}