Vscode merge (#4582)

* Merge from vscode 37cb23d3dd4f9433d56d4ba5ea3203580719a0bd

* fix issues with merges

* bump node version in azpipe

* replace license headers

* remove duplicate launch task

* fix build errors

* fix build errors

* fix tslint issues

* working through package and linux build issues

* more work

* wip

* fix packaged builds

* working through linux build errors

* wip

* wip

* wip

* fix mac and linux file limits

* iterate linux pipeline

* disable editor typing

* revert series to parallel

* remove optimize vscode from linux

* fix linting issues

* revert testing change

* add work round for new node

* readd packaging for extensions

* fix issue with angular not resolving decorator dependencies

src/vs/workbench/services/activityBar/browser/activityBarService.ts

@@ -0,0 +1,24 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
+import { IBadge } from 'vs/workbench/services/activity/common/activity';
+import { IDisposable } from 'vs/base/common/lifecycle';
+
+export const IActivityBarService = createDecorator<IActivityBarService>('activityBarService');
+
+export interface IActivityBarService {
+	_serviceBrand: any;
+
+	/**
+	 * Show an activity in a viewlet.
+	 */
+	showActivity(viewletOrActionId: string, badge: IBadge, clazz?: string, priority?: number): IDisposable;
+
+	/**
+	 * Returns id of pinned viewlets following the visual order.
+	 */
+	getPinnedViewletIds(): string[];
+}