src/vs/workbench/contrib/codeEditor/browser/outline/documentSymbolsTree.ts/DocumentSymbolAccessibilityProvider/getAriaLabel
class DocumentSymbolAccessibilityProvider:	getAriaLabel(element: DocumentSymbolItem): string | null {
		if (element instanceof OutlineGroup) {
			return element.label;
		} else {
			return element.symbol.name;
		}
	}