quick input - set placeholder as aria label

src/vs/base/common/fuzzyScorer.ts

@@ -506,8 +506,8 @@ function doScoreItemFuzzySingle(label: string, description: string | undefined,
 	return NO_ITEM_SCORE;
 }
 
-function createMatches(offsets: undefined | number[]): IMatch[] {
-	let ret: IMatch[] = [];
+function createMatches(offsets: number[] | undefined): IMatch[] {
+	const ret: IMatch[] = [];
 	if (!offsets) {
 		return ret;
 	}

src/vs/base/parts/quickinput/browser/quickInput.ts

@@ -1362,6 +1362,9 @@ export class QuickInputController extends Disposable {
 			];
 			input.canSelectMany = !!options.canPickMany;
 			input.placeholder = options.placeHolder;
+			if (options.placeHolder) {
+				input.ariaLabel = options.placeHolder;
+			}
 			input.ignoreFocusOut = !!options.ignoreFocusLost;
 			input.matchOnDescription = !!options.matchOnDescription;
 			input.matchOnDetail = !!options.matchOnDetail;