Fixes #23577: Send run task activation even whnen task open handler is used.

src/vs/workbench/parts/tasks/browser/taskQuickOpen.ts

@@ -12,6 +12,8 @@ import { IQuickOpenService } from 'vs/platform/quickOpen/common/quickOpen';
 
 import { Task } from 'vs/workbench/parts/tasks/common/tasks';
 import { ITaskService } from 'vs/workbench/parts/tasks/common/taskService';
+import { IExtensionService } from 'vs/platform/extensions/common/extensions';
+
 
 import * as base from './quickOpen';
 
@@ -34,11 +36,15 @@ class TaskEntry extends base.TaskEntry {
 }
 
 export class QuickOpenHandler extends base.QuickOpenHandler {
+	private activationPromise: TPromise<void>;
+
 	constructor(
 		@IQuickOpenService quickOpenService: IQuickOpenService,
-		@ITaskService taskService: ITaskService
+		@ITaskService taskService: ITaskService,
+		@IExtensionService extensionService: IExtensionService
 	) {
 		super(quickOpenService, taskService);
+		this.activationPromise = extensionService.activateByEvent('onCommand:workbench.action.tasks.runTask');
 	}
 
 	public getAriaLabel(): string {
@@ -46,7 +52,9 @@ export class QuickOpenHandler extends base.QuickOpenHandler {
 	}
 
 	protected getTasks(): TPromise<Task[]> {
-		return this.taskService.tasks();
+		return this.activationPromise.then(() => {
+			return this.taskService.tasks();
+		});
 	}
 
 	protected createEntry(taskService: ITaskService, task: Task, highlights: Model.IHighlight[]): base.TaskEntry {