aria label for problems tree

src/vs/workbench/parts/markers/browser/markersPanel.ts

@@ -33,6 +33,7 @@ import { IInstantiationService } from 'vs/platform/instantiation/common/instanti
 import { ActionProvider } from 'vs/workbench/parts/markers/browser/markersActionProvider';
 import { CollapseAllAction, FilterAction, FilterInputBoxActionItem } from 'vs/workbench/parts/markers/browser/markersPanelActions';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
+import Messages from 'vs/workbench/parts/markers/common/messages';
 
 export class MarkersPanel extends Panel {
 
@@ -157,6 +158,7 @@ export class MarkersPanel extends Panel {
 		}, {
 				indentPixels: 0,
 				twistiePixels: 20,
+				ariaLabel: Messages.MARKERS_PANEL_ARIA_LABEL_PROBLEMS_TREE
 			});
 	}
 

src/vs/workbench/parts/markers/common/messages.ts

@@ -17,6 +17,7 @@ export default class Messages {
 	public static PROBLEMS_PANEL_CONFIGURATION_AUTO_REVEAL:string= nls.localize('problems.panel.configuration.autoreveal', "Controls if Problems view should automatically reveal files when opening them");
 
 	public static MARKERS_PANEL_TITLE_NO_PROBLEMS:string= nls.localize('markers.panel.title.no.problems', "No problems");
+	public static MARKERS_PANEL_ARIA_LABEL_PROBLEMS_TREE:string= nls.localize('markers.panel.aria.label.problems.tree', "Problems grouped by files");
 
 	public static MARKERS_PANEL_NO_PROBLEMS_BUILT:string= nls.localize('markers.panel.no.problems.build', "No problems have been detected in the workspace so far.");
 	public static MARKERS_PANEL_NO_PROBLEMS_FILTERS:string= nls.localize('markers.panel.no.problems.filters', "No results found with provided filter criteria");