update types

Author: Artmann

src/test/datascience/mockQuickPick.ts

@@ -6,6 +6,7 @@ import { Event, EventEmitter, QuickInputButton, QuickPick, QuickPickItem, QuickP
 export class MockQuickPick implements QuickPick<QuickPickItem> {
     public value: string = '';
     public placeholder: string | undefined;
+    public prompt: string | undefined;
     public title: string | undefined = 'foo';
     public step: number | undefined;
     public totalSteps: number | undefined;

src/test/datascience/notebook/helper.ts

@@ -1421,6 +1421,7 @@ export async function hijackSavePrompt(
 export class MockQuickPick implements QuickPick<QuickPickItem> {
     value: string;
     placeholder: string | undefined;
+    prompt: string | undefined;
     get onDidChangeValue(): Event<string> {
         return this._onDidChangeValueEmitter.event;
     }