diff --git a/src/vs/base/browser/fastDomNode.ts b/src/vs/base/browser/fastDomNode.ts
index 2b9dde384bb..cb121546529 100644
--- a/src/vs/base/browser/fastDomNode.ts
+++ b/src/vs/base/browser/fastDomNode.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as dom from 'vs/base/browser/dom';
 
diff --git a/src/vs/base/browser/globalMouseMoveMonitor.ts b/src/vs/base/browser/globalMouseMoveMonitor.ts
index 09b2f37842e..2f5bc316602 100644
--- a/src/vs/base/browser/globalMouseMoveMonitor.ts
+++ b/src/vs/base/browser/globalMouseMoveMonitor.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Disposable, IDisposable, dispose } from 'vs/base/common/lifecycle';
 import * as dom from 'vs/base/browser/dom';
diff --git a/src/vs/base/browser/iframe.ts b/src/vs/base/browser/iframe.ts
index 158455c866e..3cede5b4173 100644
--- a/src/vs/base/browser/iframe.ts
+++ b/src/vs/base/browser/iframe.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * Represents a window in a possible chain of iframes
diff --git a/src/vs/base/browser/mouseEvent.ts b/src/vs/base/browser/mouseEvent.ts
index 693dcc00cc6..cba7c60fb6b 100644
--- a/src/vs/base/browser/mouseEvent.ts
+++ b/src/vs/base/browser/mouseEvent.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as platform from 'vs/base/common/platform';
 import * as browser from 'vs/base/browser/browser';
diff --git a/src/vs/base/browser/ui/keybindingLabel/keybindingLabel.ts b/src/vs/base/browser/ui/keybindingLabel/keybindingLabel.ts
index 459ca6e2327..3cff751c75d 100644
--- a/src/vs/base/browser/ui/keybindingLabel/keybindingLabel.ts
+++ b/src/vs/base/browser/ui/keybindingLabel/keybindingLabel.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import 'vs/css!./keybindingLabel';
 import { IDisposable } from 'vs/base/common/lifecycle';
diff --git a/src/vs/base/browser/ui/scrollbar/abstractScrollbar.ts b/src/vs/base/browser/ui/scrollbar/abstractScrollbar.ts
index 513f539c047..9edbd0a115b 100644
--- a/src/vs/base/browser/ui/scrollbar/abstractScrollbar.ts
+++ b/src/vs/base/browser/ui/scrollbar/abstractScrollbar.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as Platform from 'vs/base/common/platform';
 import * as DomUtils from 'vs/base/browser/dom';
diff --git a/src/vs/base/browser/ui/scrollbar/horizontalScrollbar.ts b/src/vs/base/browser/ui/scrollbar/horizontalScrollbar.ts
index 118bf929c0b..4e4a793bb41 100644
--- a/src/vs/base/browser/ui/scrollbar/horizontalScrollbar.ts
+++ b/src/vs/base/browser/ui/scrollbar/horizontalScrollbar.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { AbstractScrollbar, ScrollbarHost, ISimplifiedMouseEvent } from 'vs/base/browser/ui/scrollbar/abstractScrollbar';
 import { StandardMouseWheelEvent } from 'vs/base/browser/mouseEvent';
diff --git a/src/vs/base/browser/ui/scrollbar/scrollableElementOptions.ts b/src/vs/base/browser/ui/scrollbar/scrollableElementOptions.ts
index 069a6ea6860..f90e882aa07 100644
--- a/src/vs/base/browser/ui/scrollbar/scrollableElementOptions.ts
+++ b/src/vs/base/browser/ui/scrollbar/scrollableElementOptions.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ScrollbarVisibility } from 'vs/base/common/scrollable';
 
diff --git a/src/vs/base/browser/ui/scrollbar/scrollbarArrow.ts b/src/vs/base/browser/ui/scrollbar/scrollbarArrow.ts
index 9ab0513e79a..b66a7196ab1 100644
--- a/src/vs/base/browser/ui/scrollbar/scrollbarArrow.ts
+++ b/src/vs/base/browser/ui/scrollbar/scrollbarArrow.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IMouseEvent } from 'vs/base/browser/mouseEvent';
 import { GlobalMouseMoveMonitor, IStandardMouseMoveEventData, standardMouseMoveMerger } from 'vs/base/browser/globalMouseMoveMonitor';
diff --git a/src/vs/base/browser/ui/scrollbar/scrollbarState.ts b/src/vs/base/browser/ui/scrollbar/scrollbarState.ts
index f3a51b7e509..edde3f8d1ee 100644
--- a/src/vs/base/browser/ui/scrollbar/scrollbarState.ts
+++ b/src/vs/base/browser/ui/scrollbar/scrollbarState.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * The minimal size of the slider (such that it can still be clickable) -- it is artificially enlarged.
diff --git a/src/vs/base/browser/ui/scrollbar/scrollbarVisibilityController.ts b/src/vs/base/browser/ui/scrollbar/scrollbarVisibilityController.ts
index 604f3825304..552f69c0b6e 100644
--- a/src/vs/base/browser/ui/scrollbar/scrollbarVisibilityController.ts
+++ b/src/vs/base/browser/ui/scrollbar/scrollbarVisibilityController.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Disposable } from 'vs/base/common/lifecycle';
 import { TimeoutTimer } from 'vs/base/common/async';
diff --git a/src/vs/base/browser/ui/scrollbar/verticalScrollbar.ts b/src/vs/base/browser/ui/scrollbar/verticalScrollbar.ts
index 5cd12dfeed1..90e5260be2b 100644
--- a/src/vs/base/browser/ui/scrollbar/verticalScrollbar.ts
+++ b/src/vs/base/browser/ui/scrollbar/verticalScrollbar.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { AbstractScrollbar, ScrollbarHost, ISimplifiedMouseEvent } from 'vs/base/browser/ui/scrollbar/abstractScrollbar';
 import { StandardMouseWheelEvent } from 'vs/base/browser/mouseEvent';
diff --git a/src/vs/base/browser/ui/widget.ts b/src/vs/base/browser/ui/widget.ts
index c01fda038cc..92265ab9691 100644
--- a/src/vs/base/browser/ui/widget.ts
+++ b/src/vs/base/browser/ui/widget.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Disposable } from 'vs/base/common/lifecycle';
 import { StandardMouseEvent, IMouseEvent } from 'vs/base/browser/mouseEvent';
diff --git a/src/vs/base/common/assert.ts b/src/vs/base/common/assert.ts
index 77f1cb2a3b4..0a54ee2e51b 100644
--- a/src/vs/base/common/assert.ts
+++ b/src/vs/base/common/assert.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * Throws an error with the provided message if the provided value does not evaluate to a true Javascript value.
diff --git a/src/vs/base/common/diff/diffChange.ts b/src/vs/base/common/diff/diffChange.ts
index 2f1ea425d6c..bd97dc8bb31 100644
--- a/src/vs/base/common/diff/diffChange.ts
+++ b/src/vs/base/common/diff/diffChange.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * Represents information about a specific difference between two sequences.
diff --git a/src/vs/base/common/functional.ts b/src/vs/base/common/functional.ts
index b3563b3f875..0f2e30bc9ed 100644
--- a/src/vs/base/common/functional.ts
+++ b/src/vs/base/common/functional.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 export function once<T extends Function>(this: any, fn: T): T {
 	const _this = this;
diff --git a/src/vs/base/common/hash.ts b/src/vs/base/common/hash.ts
index e7149e43cd7..18aac042f16 100644
--- a/src/vs/base/common/hash.ts
+++ b/src/vs/base/common/hash.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * Return a hash value for an object.
diff --git a/src/vs/base/common/htmlContent.ts b/src/vs/base/common/htmlContent.ts
index b06fe9aaf58..6d9a5ed2677 100644
--- a/src/vs/base/common/htmlContent.ts
+++ b/src/vs/base/common/htmlContent.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { equals } from 'vs/base/common/arrays';
 
diff --git a/src/vs/base/common/idGenerator.ts b/src/vs/base/common/idGenerator.ts
index 7287a3becd5..51c9aafba96 100644
--- a/src/vs/base/common/idGenerator.ts
+++ b/src/vs/base/common/idGenerator.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 export class IdGenerator {
 
diff --git a/src/vs/base/common/jsonEdit.ts b/src/vs/base/common/jsonEdit.ts
index 4970411b7d6..56b3b671160 100644
--- a/src/vs/base/common/jsonEdit.ts
+++ b/src/vs/base/common/jsonEdit.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ParseError, Node, parseTree, findNodeAtLocation, JSONPath, Segment } from 'vs/base/common/json';
 import { Edit, FormattingOptions, format, applyEdit } from 'vs/base/common/jsonFormatter';
diff --git a/src/vs/base/common/jsonErrorMessages.ts b/src/vs/base/common/jsonErrorMessages.ts
index 96edf8e35a4..1b7667fbef4 100644
--- a/src/vs/base/common/jsonErrorMessages.ts
+++ b/src/vs/base/common/jsonErrorMessages.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 /**
  * Extracted from json.ts to keep json nls free.
diff --git a/src/vs/base/common/keyCodes.ts b/src/vs/base/common/keyCodes.ts
index 92267e535c2..f72cebe7b4f 100644
--- a/src/vs/base/common/keyCodes.ts
+++ b/src/vs/base/common/keyCodes.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { OperatingSystem } from 'vs/base/common/platform';
 
diff --git a/src/vs/base/common/network.ts b/src/vs/base/common/network.ts
index 223bc1b6f2e..1915b8fb6f3 100644
--- a/src/vs/base/common/network.ts
+++ b/src/vs/base/common/network.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 export namespace Schemas {
 
diff --git a/src/vs/base/common/stopwatch.ts b/src/vs/base/common/stopwatch.ts
index fe3889b2918..0280b20a4ee 100644
--- a/src/vs/base/common/stopwatch.ts
+++ b/src/vs/base/common/stopwatch.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { globals } from 'vs/base/common/platform';
 
diff --git a/src/vs/base/common/types.ts b/src/vs/base/common/types.ts
index 5cae5c567f8..865c7f0e0bf 100644
--- a/src/vs/base/common/types.ts
+++ b/src/vs/base/common/types.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 const _typeof = {
 	number: 'number',
diff --git a/src/vs/base/parts/ipc/test/node/testApp.ts b/src/vs/base/parts/ipc/test/node/testApp.ts
index 0df8f1af1bb..0bdfaec73f4 100644
--- a/src/vs/base/parts/ipc/test/node/testApp.ts
+++ b/src/vs/base/parts/ipc/test/node/testApp.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Server } from 'vs/base/parts/ipc/node/ipc.cp';
 import { TestChannel, TestService } from './testService';
diff --git a/src/vs/base/test/browser/dom.test.ts b/src/vs/base/test/browser/dom.test.ts
index 601e38677d3..dd5f75b164d 100644
--- a/src/vs/base/test/browser/dom.test.ts
+++ b/src/vs/base/test/browser/dom.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import * as dom from 'vs/base/browser/dom';
diff --git a/src/vs/base/test/browser/ui/scrollbar/scrollableElement.test.ts b/src/vs/base/test/browser/ui/scrollbar/scrollableElement.test.ts
index 307df81f823..78e9ebb8bd6 100644
--- a/src/vs/base/test/browser/ui/scrollbar/scrollableElement.test.ts
+++ b/src/vs/base/test/browser/ui/scrollbar/scrollableElement.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { MouseWheelClassifier } from 'vs/base/browser/ui/scrollbar/scrollableElement';
 import * as assert from 'assert';
diff --git a/src/vs/base/test/browser/ui/scrollbar/scrollbarState.test.ts b/src/vs/base/test/browser/ui/scrollbar/scrollbarState.test.ts
index da42703f898..9dad8183e91 100644
--- a/src/vs/base/test/browser/ui/scrollbar/scrollbarState.test.ts
+++ b/src/vs/base/test/browser/ui/scrollbar/scrollbarState.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { ScrollbarState } from 'vs/base/browser/ui/scrollbar/scrollbarState';
diff --git a/src/vs/base/test/common/charCode.test.ts b/src/vs/base/test/common/charCode.test.ts
index 903d6cee535..a47ed336a2f 100644
--- a/src/vs/base/test/common/charCode.test.ts
+++ b/src/vs/base/test/common/charCode.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { CharCode } from 'vs/base/common/charCode';
diff --git a/src/vs/base/test/common/decorators.test.ts b/src/vs/base/test/common/decorators.test.ts
index c20c4ac1005..18cff73a873 100644
--- a/src/vs/base/test/common/decorators.test.ts
+++ b/src/vs/base/test/common/decorators.test.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as assert from 'assert';
 import { memoize } from 'vs/base/common/decorators';
diff --git a/src/vs/base/test/common/keyCodes.test.ts b/src/vs/base/test/common/keyCodes.test.ts
index e5a4c89cda9..617586bae07 100644
--- a/src/vs/base/test/common/keyCodes.test.ts
+++ b/src/vs/base/test/common/keyCodes.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { KeyCode, KeyMod, KeyChord, Keybinding, createKeybinding, SimpleKeybinding, ChordKeybinding } from 'vs/base/common/keyCodes';
diff --git a/src/vs/base/test/common/scrollable.test.ts b/src/vs/base/test/common/scrollable.test.ts
index 4548dc7e3fb..820862f2f65 100644
--- a/src/vs/base/test/common/scrollable.test.ts
+++ b/src/vs/base/test/common/scrollable.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { SmoothScrollingOperation, SmoothScrollingUpdate } from 'vs/base/common/scrollable';
diff --git a/src/vs/code/node/shellEnv.ts b/src/vs/code/node/shellEnv.ts
index e64c64e6400..089daf86900 100644
--- a/src/vs/code/node/shellEnv.ts
+++ b/src/vs/code/node/shellEnv.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as cp from 'child_process';
 import { assign } from 'vs/base/common/objects';
diff --git a/src/vs/editor/browser/config/elementSizeObserver.ts b/src/vs/editor/browser/config/elementSizeObserver.ts
index bd8814cace9..3166832a31a 100644
--- a/src/vs/editor/browser/config/elementSizeObserver.ts
+++ b/src/vs/editor/browser/config/elementSizeObserver.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Disposable } from 'vs/base/common/lifecycle';
 import { IDimension } from 'vs/editor/common/editorCommon';
diff --git a/src/vs/editor/browser/view/dynamicViewOverlay.ts b/src/vs/editor/browser/view/dynamicViewOverlay.ts
index 5bb5e119f33..73dda1e967f 100644
--- a/src/vs/editor/browser/view/dynamicViewOverlay.ts
+++ b/src/vs/editor/browser/view/dynamicViewOverlay.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { ViewEventHandler } from 'vs/editor/common/viewModel/viewEventHandler';
 import { RenderingContext } from 'vs/editor/common/view/renderingContext';
diff --git a/src/vs/editor/browser/view/viewOverlays.ts b/src/vs/editor/browser/view/viewOverlays.ts
index 56e398547a0..21f037094d9 100644
--- a/src/vs/editor/browser/view/viewOverlays.ts
+++ b/src/vs/editor/browser/view/viewOverlays.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { FastDomNode, createFastDomNode } from 'vs/base/browser/fastDomNode';
 import { IConfiguration } from 'vs/editor/common/editorCommon';
diff --git a/src/vs/editor/browser/view/viewPart.ts b/src/vs/editor/browser/view/viewPart.ts
index 1f83f9e1752..4b9905a3259 100644
--- a/src/vs/editor/browser/view/viewPart.ts
+++ b/src/vs/editor/browser/view/viewPart.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ViewEventHandler } from 'vs/editor/common/viewModel/viewEventHandler';
 import { ViewContext } from 'vs/editor/common/view/viewContext';
diff --git a/src/vs/editor/browser/viewParts/lines/rangeUtil.ts b/src/vs/editor/browser/viewParts/lines/rangeUtil.ts
index 5496fb6a3f4..417ccbfaf25 100644
--- a/src/vs/editor/browser/viewParts/lines/rangeUtil.ts
+++ b/src/vs/editor/browser/viewParts/lines/rangeUtil.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { HorizontalRange } from 'vs/editor/common/view/renderingContext';
 import { Constants } from 'vs/editor/common/core/uint';
diff --git a/src/vs/editor/browser/viewParts/linesDecorations/linesDecorations.ts b/src/vs/editor/browser/viewParts/linesDecorations/linesDecorations.ts
index 43767788096..14907647bdc 100644
--- a/src/vs/editor/browser/viewParts/linesDecorations/linesDecorations.ts
+++ b/src/vs/editor/browser/viewParts/linesDecorations/linesDecorations.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import 'vs/css!./linesDecorations';
 import { DecorationToRender, DedupOverlay } from 'vs/editor/browser/viewParts/glyphMargin/glyphMargin';
diff --git a/src/vs/editor/browser/viewParts/marginDecorations/marginDecorations.ts b/src/vs/editor/browser/viewParts/marginDecorations/marginDecorations.ts
index 75ff0a0e3ed..a9ce78a625f 100644
--- a/src/vs/editor/browser/viewParts/marginDecorations/marginDecorations.ts
+++ b/src/vs/editor/browser/viewParts/marginDecorations/marginDecorations.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import 'vs/css!./marginDecorations';
 import { DecorationToRender, DedupOverlay } from 'vs/editor/browser/viewParts/glyphMargin/glyphMargin';
diff --git a/src/vs/editor/browser/viewParts/overlayWidgets/overlayWidgets.ts b/src/vs/editor/browser/viewParts/overlayWidgets/overlayWidgets.ts
index fc87fd6fa56..0277482b06f 100644
--- a/src/vs/editor/browser/viewParts/overlayWidgets/overlayWidgets.ts
+++ b/src/vs/editor/browser/viewParts/overlayWidgets/overlayWidgets.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import 'vs/css!./overlayWidgets';
 import { FastDomNode, createFastDomNode } from 'vs/base/browser/fastDomNode';
diff --git a/src/vs/editor/common/controller/cursorColumnSelection.ts b/src/vs/editor/common/controller/cursorColumnSelection.ts
index 972b5e0314a..c0ceabc0f47 100644
--- a/src/vs/editor/common/controller/cursorColumnSelection.ts
+++ b/src/vs/editor/common/controller/cursorColumnSelection.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Selection } from 'vs/editor/common/core/selection';
 import { Position } from 'vs/editor/common/core/position';
diff --git a/src/vs/editor/common/controller/cursorEvents.ts b/src/vs/editor/common/controller/cursorEvents.ts
index 9c7b9789445..696b118db3f 100644
--- a/src/vs/editor/common/controller/cursorEvents.ts
+++ b/src/vs/editor/common/controller/cursorEvents.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Position } from 'vs/editor/common/core/position';
 import { Selection } from 'vs/editor/common/core/selection';
diff --git a/src/vs/editor/common/controller/wordCharacterClassifier.ts b/src/vs/editor/common/controller/wordCharacterClassifier.ts
index c8399717727..99b8d5812c3 100644
--- a/src/vs/editor/common/controller/wordCharacterClassifier.ts
+++ b/src/vs/editor/common/controller/wordCharacterClassifier.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { CharCode } from 'vs/base/common/charCode';
 import { CharacterClassifier } from 'vs/editor/common/core/characterClassifier';
diff --git a/src/vs/editor/common/core/characterClassifier.ts b/src/vs/editor/common/core/characterClassifier.ts
index bdac75390e3..83b5d93b1df 100644
--- a/src/vs/editor/common/core/characterClassifier.ts
+++ b/src/vs/editor/common/core/characterClassifier.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { toUint8 } from 'vs/editor/common/core/uint';
 
diff --git a/src/vs/editor/common/core/rgba.ts b/src/vs/editor/common/core/rgba.ts
index 907d04eda63..beec94f0d0b 100644
--- a/src/vs/editor/common/core/rgba.ts
+++ b/src/vs/editor/common/core/rgba.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 /**
  * A very VM friendly rgba datastructure.
diff --git a/src/vs/editor/common/core/token.ts b/src/vs/editor/common/core/token.ts
index 29904ee6dd5..68326bf0b1f 100644
--- a/src/vs/editor/common/core/token.ts
+++ b/src/vs/editor/common/core/token.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IState } from 'vs/editor/common/modes';
 
diff --git a/src/vs/editor/common/core/uint.ts b/src/vs/editor/common/core/uint.ts
index d368d7824fd..67556d1a8bc 100644
--- a/src/vs/editor/common/core/uint.ts
+++ b/src/vs/editor/common/core/uint.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 export class Uint8Matrix {
 
diff --git a/src/vs/editor/common/editorAction.ts b/src/vs/editor/common/editorAction.ts
index 575781a80d9..b0f8fcbe71a 100644
--- a/src/vs/editor/common/editorAction.ts
+++ b/src/vs/editor/common/editorAction.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { TPromise } from 'vs/base/common/winjs.base';
 import { IEditorAction } from 'vs/editor/common/editorCommon';
diff --git a/src/vs/editor/common/modes/abstractMode.ts b/src/vs/editor/common/modes/abstractMode.ts
index 9a6e00ab03e..10919a8f31f 100644
--- a/src/vs/editor/common/modes/abstractMode.ts
+++ b/src/vs/editor/common/modes/abstractMode.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IMode, LanguageIdentifier } from 'vs/editor/common/modes';
 
diff --git a/src/vs/editor/common/modes/linkComputer.ts b/src/vs/editor/common/modes/linkComputer.ts
index a44b8970af3..1813894e58d 100644
--- a/src/vs/editor/common/modes/linkComputer.ts
+++ b/src/vs/editor/common/modes/linkComputer.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ILink } from 'vs/editor/common/modes';
 import { CharCode } from 'vs/base/common/charCode';
diff --git a/src/vs/editor/common/modes/nullMode.ts b/src/vs/editor/common/modes/nullMode.ts
index d06cd9af478..1558e3b2a35 100644
--- a/src/vs/editor/common/modes/nullMode.ts
+++ b/src/vs/editor/common/modes/nullMode.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IState, ColorId, MetadataConsts, LanguageIdentifier, FontStyle, StandardTokenType, LanguageId } from 'vs/editor/common/modes';
 import { Token, TokenizationResult, TokenizationResult2 } from 'vs/editor/common/core/token';
diff --git a/src/vs/editor/common/modes/supports/indentRules.ts b/src/vs/editor/common/modes/supports/indentRules.ts
index 31cd45cbe0f..687115bd424 100644
--- a/src/vs/editor/common/modes/supports/indentRules.ts
+++ b/src/vs/editor/common/modes/supports/indentRules.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IndentationRule } from 'vs/editor/common/modes/languageConfiguration';
 
diff --git a/src/vs/editor/common/view/viewContext.ts b/src/vs/editor/common/view/viewContext.ts
index 7aae15aebab..7bb8578ad84 100644
--- a/src/vs/editor/common/view/viewContext.ts
+++ b/src/vs/editor/common/view/viewContext.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IConfiguration } from 'vs/editor/common/editorCommon';
 import { IViewModel, IViewLayout } from 'vs/editor/common/viewModel/viewModel';
diff --git a/src/vs/editor/common/view/viewEventDispatcher.ts b/src/vs/editor/common/view/viewEventDispatcher.ts
index 4bf9168b301..f36e8d69535 100644
--- a/src/vs/editor/common/view/viewEventDispatcher.ts
+++ b/src/vs/editor/common/view/viewEventDispatcher.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ViewEventHandler } from 'vs/editor/common/viewModel/viewEventHandler';
 import { ViewEvent } from 'vs/editor/common/view/viewEvents';
diff --git a/src/vs/editor/common/viewLayout/viewLinesViewportData.ts b/src/vs/editor/common/viewLayout/viewLinesViewportData.ts
index 9ff9ddfe449..c82545c251e 100644
--- a/src/vs/editor/common/viewLayout/viewLinesViewportData.ts
+++ b/src/vs/editor/common/viewLayout/viewLinesViewportData.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ViewLineRenderingData, IViewModel, ViewModelDecoration, IViewWhitespaceViewportData } from 'vs/editor/common/viewModel/viewModel';
 import { Range } from 'vs/editor/common/core/range';
diff --git a/src/vs/editor/common/viewModel/prefixSumComputer.ts b/src/vs/editor/common/viewModel/prefixSumComputer.ts
index 8730795093f..88e8968e894 100644
--- a/src/vs/editor/common/viewModel/prefixSumComputer.ts
+++ b/src/vs/editor/common/viewModel/prefixSumComputer.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { toUint32 } from 'vs/editor/common/core/uint';
 
diff --git a/src/vs/editor/common/viewModel/viewEventHandler.ts b/src/vs/editor/common/viewModel/viewEventHandler.ts
index 874b206787e..b830fb8a273 100644
--- a/src/vs/editor/common/viewModel/viewEventHandler.ts
+++ b/src/vs/editor/common/viewModel/viewEventHandler.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as viewEvents from 'vs/editor/common/view/viewEvents';
 import { Disposable } from 'vs/base/common/lifecycle';
diff --git a/src/vs/editor/contrib/caretOperations/test/moveCarretCommand.test.ts b/src/vs/editor/contrib/caretOperations/test/moveCarretCommand.test.ts
index 38fc569bb45..a5942fbc261 100644
--- a/src/vs/editor/contrib/caretOperations/test/moveCarretCommand.test.ts
+++ b/src/vs/editor/contrib/caretOperations/test/moveCarretCommand.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Selection } from 'vs/editor/common/core/selection';
 import { MoveCaretCommand } from 'vs/editor/contrib/caretOperations/moveCaretCommand';
diff --git a/src/vs/editor/contrib/find/test/find.test.ts b/src/vs/editor/contrib/find/test/find.test.ts
index 750bc7ece80..1cfc4f135f0 100644
--- a/src/vs/editor/contrib/find/test/find.test.ts
+++ b/src/vs/editor/contrib/find/test/find.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { Position } from 'vs/editor/common/core/position';
diff --git a/src/vs/editor/contrib/find/test/replacePattern.test.ts b/src/vs/editor/contrib/find/test/replacePattern.test.ts
index 187ed7e24ed..f2e13b95196 100644
--- a/src/vs/editor/contrib/find/test/replacePattern.test.ts
+++ b/src/vs/editor/contrib/find/test/replacePattern.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { parseReplaceString, ReplacePattern, ReplacePiece } from 'vs/editor/contrib/find/replacePattern';
diff --git a/src/vs/editor/contrib/linesOperations/test/copyLinesCommand.test.ts b/src/vs/editor/contrib/linesOperations/test/copyLinesCommand.test.ts
index 5d19d922f6a..7767e3fe13f 100644
--- a/src/vs/editor/contrib/linesOperations/test/copyLinesCommand.test.ts
+++ b/src/vs/editor/contrib/linesOperations/test/copyLinesCommand.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Selection } from 'vs/editor/common/core/selection';
 import { CopyLinesCommand } from 'vs/editor/contrib/linesOperations/copyLinesCommand';
diff --git a/src/vs/editor/contrib/linesOperations/test/sortLinesCommand.test.ts b/src/vs/editor/contrib/linesOperations/test/sortLinesCommand.test.ts
index e0c562e58f1..8be9c5f37b5 100644
--- a/src/vs/editor/contrib/linesOperations/test/sortLinesCommand.test.ts
+++ b/src/vs/editor/contrib/linesOperations/test/sortLinesCommand.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Selection } from 'vs/editor/common/core/selection';
 import { SortLinesCommand } from 'vs/editor/contrib/linesOperations/sortLinesCommand';
diff --git a/src/vs/editor/standalone/browser/iPadShowKeyboard/iPadShowKeyboard.ts b/src/vs/editor/standalone/browser/iPadShowKeyboard/iPadShowKeyboard.ts
index 102e9827c98..78f1036caf1 100644
--- a/src/vs/editor/standalone/browser/iPadShowKeyboard/iPadShowKeyboard.ts
+++ b/src/vs/editor/standalone/browser/iPadShowKeyboard/iPadShowKeyboard.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import 'vs/css!./iPadShowKeyboard';
 import { IDisposable, dispose } from 'vs/base/common/lifecycle';
diff --git a/src/vs/editor/standalone/browser/toggleHighContrast/toggleHighContrast.ts b/src/vs/editor/standalone/browser/toggleHighContrast/toggleHighContrast.ts
index 0e07fcc4075..fbb0790bae1 100644
--- a/src/vs/editor/standalone/browser/toggleHighContrast/toggleHighContrast.ts
+++ b/src/vs/editor/standalone/browser/toggleHighContrast/toggleHighContrast.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as nls from 'vs/nls';
 import { registerEditorAction, EditorAction, ServicesAccessor } from 'vs/editor/browser/editorExtensions';
diff --git a/src/vs/editor/test/browser/view/viewLayer.test.ts b/src/vs/editor/test/browser/view/viewLayer.test.ts
index a71138fc3b7..3d98b04c75b 100644
--- a/src/vs/editor/test/browser/view/viewLayer.test.ts
+++ b/src/vs/editor/test/browser/view/viewLayer.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import { RenderedLinesCollection, ILine } from 'vs/editor/browser/view/viewLayer';
diff --git a/src/vs/editor/test/common/commentMode.ts b/src/vs/editor/test/common/commentMode.ts
index ced7ed30006..20f19f488aa 100644
--- a/src/vs/editor/test/common/commentMode.ts
+++ b/src/vs/editor/test/common/commentMode.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { LanguageConfigurationRegistry } from 'vs/editor/common/modes/languageConfigurationRegistry';
 import { CommentRule } from 'vs/editor/common/modes/languageConfiguration';
diff --git a/src/vs/editor/test/common/mocks/mockMode.ts b/src/vs/editor/test/common/mocks/mockMode.ts
index cb05dd3d741..7d5ce73d972 100644
--- a/src/vs/editor/test/common/mocks/mockMode.ts
+++ b/src/vs/editor/test/common/mocks/mockMode.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Disposable } from 'vs/base/common/lifecycle';
 import { IMode, LanguageIdentifier } from 'vs/editor/common/modes';
diff --git a/src/vs/editor/test/common/modes/languageConfiguration.test.ts b/src/vs/editor/test/common/modes/languageConfiguration.test.ts
index bef57289a1f..ec15f642b72 100644
--- a/src/vs/editor/test/common/modes/languageConfiguration.test.ts
+++ b/src/vs/editor/test/common/modes/languageConfiguration.test.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as assert from 'assert';
 import { StandardAutoClosingPairConditional } from 'vs/editor/common/modes/languageConfiguration';
diff --git a/src/vs/platform/environment/test/node/environmentService.test.ts b/src/vs/platform/environment/test/node/environmentService.test.ts
index 928f8b5b236..b29c8629002 100644
--- a/src/vs/platform/environment/test/node/environmentService.test.ts
+++ b/src/vs/platform/environment/test/node/environmentService.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import * as path from 'path';
diff --git a/src/vs/platform/extensionManagement/common/extensionNls.ts b/src/vs/platform/extensionManagement/common/extensionNls.ts
index ae4df2ad989..dabae848e7e 100644
--- a/src/vs/platform/extensionManagement/common/extensionNls.ts
+++ b/src/vs/platform/extensionManagement/common/extensionNls.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { cloneAndChange } from 'vs/base/common/objects';
 import { IExtensionManifest } from 'vs/platform/extensionManagement/common/extensionManagement';
diff --git a/src/vs/platform/extensionManagement/node/extensionManagementUtil.ts b/src/vs/platform/extensionManagement/node/extensionManagementUtil.ts
index b8df67a3d7d..44f7e2a3335 100644
--- a/src/vs/platform/extensionManagement/node/extensionManagementUtil.ts
+++ b/src/vs/platform/extensionManagement/node/extensionManagementUtil.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as semver from 'semver';
 import { adoptToGalleryExtensionId, LOCAL_EXTENSION_ID_REGEX } from 'vs/platform/extensionManagement/common/extensionManagementUtil';
diff --git a/src/vs/platform/extensions/common/extensionHost.ts b/src/vs/platform/extensions/common/extensionHost.ts
index dd2d2ca92d2..6cf73b12383 100644
--- a/src/vs/platform/extensions/common/extensionHost.ts
+++ b/src/vs/platform/extensions/common/extensionHost.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 // Broadcast communication constants
 
diff --git a/src/vs/platform/instantiation/common/descriptors.ts b/src/vs/platform/instantiation/common/descriptors.ts
index 3dcea1588d4..9ad8ad5b482 100644
--- a/src/vs/platform/instantiation/common/descriptors.ts
+++ b/src/vs/platform/instantiation/common/descriptors.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as instantiation from './instantiation';
 
diff --git a/src/vs/platform/instantiation/common/serviceCollection.ts b/src/vs/platform/instantiation/common/serviceCollection.ts
index 49741cc49f0..d1003c1a095 100644
--- a/src/vs/platform/instantiation/common/serviceCollection.ts
+++ b/src/vs/platform/instantiation/common/serviceCollection.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ServiceIdentifier } from 'vs/platform/instantiation/common/instantiation';
 import { SyncDescriptor } from './descriptors';
diff --git a/src/vs/platform/instantiation/test/common/instantiationServiceMock.ts b/src/vs/platform/instantiation/test/common/instantiationServiceMock.ts
index da3a17eb8b0..d2457896523 100644
--- a/src/vs/platform/instantiation/test/common/instantiationServiceMock.ts
+++ b/src/vs/platform/instantiation/test/common/instantiationServiceMock.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as sinon from 'sinon';
 import { TPromise } from 'vs/base/common/winjs.base';
diff --git a/src/vs/platform/keybinding/common/resolvedKeybindingItem.ts b/src/vs/platform/keybinding/common/resolvedKeybindingItem.ts
index 7213d884a96..13945dbdc34 100644
--- a/src/vs/platform/keybinding/common/resolvedKeybindingItem.ts
+++ b/src/vs/platform/keybinding/common/resolvedKeybindingItem.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { ResolvedKeybinding } from 'vs/base/common/keyCodes';
 import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
diff --git a/src/vs/platform/workspaces/node/workspaces.ts b/src/vs/platform/workspaces/node/workspaces.ts
index 8b149ff2693..abaf7783b81 100644
--- a/src/vs/platform/workspaces/node/workspaces.ts
+++ b/src/vs/platform/workspaces/node/workspaces.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { IStoredWorkspaceFolder, isRawFileWorkspaceFolder } from 'vs/platform/workspaces/common/workspaces';
 import { isWindows, isLinux } from 'vs/base/common/platform';
diff --git a/src/vs/workbench/api/electron-browser/mainThreadStatusBar.ts b/src/vs/workbench/api/electron-browser/mainThreadStatusBar.ts
index 8c463461bc1..1dbe33201ce 100644
--- a/src/vs/workbench/api/electron-browser/mainThreadStatusBar.ts
+++ b/src/vs/workbench/api/electron-browser/mainThreadStatusBar.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IStatusbarService, StatusbarAlignment as MainThreadStatusBarAlignment } from 'vs/platform/statusbar/common/statusbar';
 import { IDisposable } from 'vs/base/common/lifecycle';
diff --git a/src/vs/workbench/common/panel.ts b/src/vs/workbench/common/panel.ts
index 2ac319835f1..57c365b0a62 100644
--- a/src/vs/workbench/common/panel.ts
+++ b/src/vs/workbench/common/panel.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IComposite } from 'vs/workbench/common/composite';
 
diff --git a/src/vs/workbench/common/viewlet.ts b/src/vs/workbench/common/viewlet.ts
index 1d6b901f78e..868fea4d508 100644
--- a/src/vs/workbench/common/viewlet.ts
+++ b/src/vs/workbench/common/viewlet.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { IComposite } from 'vs/workbench/common/composite';
 
diff --git a/src/vs/workbench/parts/backup/common/backup.contribution.ts b/src/vs/workbench/parts/backup/common/backup.contribution.ts
index 09050b6e5d7..49de0f13f71 100644
--- a/src/vs/workbench/parts/backup/common/backup.contribution.ts
+++ b/src/vs/workbench/parts/backup/common/backup.contribution.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Registry } from 'vs/platform/registry/common/platform';
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions';
diff --git a/src/vs/workbench/parts/emmet/browser/emmet.browser.contribution.ts b/src/vs/workbench/parts/emmet/browser/emmet.browser.contribution.ts
index fd6fc8604b5..285a813bb32 100644
--- a/src/vs/workbench/parts/emmet/browser/emmet.browser.contribution.ts
+++ b/src/vs/workbench/parts/emmet/browser/emmet.browser.contribution.ts
@@ -3,6 +3,5 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import './actions/showEmmetCommands';
diff --git a/src/vs/workbench/parts/emmet/electron-browser/emmet.contribution.ts b/src/vs/workbench/parts/emmet/electron-browser/emmet.contribution.ts
index 686f51fa59a..c2cd6d26a94 100644
--- a/src/vs/workbench/parts/emmet/electron-browser/emmet.contribution.ts
+++ b/src/vs/workbench/parts/emmet/electron-browser/emmet.contribution.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import './actions/expandAbbreviation';
 
diff --git a/src/vs/workbench/parts/execution/common/execution.ts b/src/vs/workbench/parts/execution/common/execution.ts
index 713d0c48cbb..fefba88a167 100644
--- a/src/vs/workbench/parts/execution/common/execution.ts
+++ b/src/vs/workbench/parts/execution/common/execution.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
 import { TPromise } from 'vs/base/common/winjs.base';
diff --git a/src/vs/workbench/parts/preferences/test/browser/keybindingsEditorContribution.test.ts b/src/vs/workbench/parts/preferences/test/browser/keybindingsEditorContribution.test.ts
index 9a050f7c952..adc8896b5c0 100644
--- a/src/vs/workbench/parts/preferences/test/browser/keybindingsEditorContribution.test.ts
+++ b/src/vs/workbench/parts/preferences/test/browser/keybindingsEditorContribution.test.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as assert from 'assert';
 import { KeybindingEditorDecorationsRenderer } from 'vs/workbench/parts/preferences/browser/keybindingsEditorContribution';
diff --git a/src/vs/workbench/parts/preferences/test/common/smartSnippetInserter.test.ts b/src/vs/workbench/parts/preferences/test/common/smartSnippetInserter.test.ts
index 9a92a25d1cb..f0b8b8b671b 100644
--- a/src/vs/workbench/parts/preferences/test/common/smartSnippetInserter.test.ts
+++ b/src/vs/workbench/parts/preferences/test/common/smartSnippetInserter.test.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as assert from 'assert';
 import { SmartSnippetInserter } from 'vs/workbench/parts/preferences/common/smartSnippetInserter';
diff --git a/src/vs/workbench/parts/scm/electron-browser/scmUtil.ts b/src/vs/workbench/parts/scm/electron-browser/scmUtil.ts
index 3970c0b7883..2b85edff55b 100644
--- a/src/vs/workbench/parts/scm/electron-browser/scmUtil.ts
+++ b/src/vs/workbench/parts/scm/electron-browser/scmUtil.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { ISCMResourceGroup, ISCMResource } from 'vs/workbench/services/scm/common/scm';
 
diff --git a/src/vs/workbench/parts/search/test/browser/openFileHandler.test.ts b/src/vs/workbench/parts/search/test/browser/openFileHandler.test.ts
index d2b21c52fee..95b77c6a04f 100644
--- a/src/vs/workbench/parts/search/test/browser/openFileHandler.test.ts
+++ b/src/vs/workbench/parts/search/test/browser/openFileHandler.test.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import * as assert from 'assert';
 import * as errors from 'vs/base/common/errors';
diff --git a/src/vs/workbench/parts/snippets/test/electron-browser/snippetsRegistry.test.ts b/src/vs/workbench/parts/snippets/test/electron-browser/snippetsRegistry.test.ts
index ff5d19ba069..8b71d74cce6 100644
--- a/src/vs/workbench/parts/snippets/test/electron-browser/snippetsRegistry.test.ts
+++ b/src/vs/workbench/parts/snippets/test/electron-browser/snippetsRegistry.test.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import * as assert from 'assert';
 import { getNonWhitespacePrefix } from 'vs/workbench/parts/snippets/electron-browser/snippetsService';
diff --git a/src/vs/workbench/parts/stats/node/stats.contribution.ts b/src/vs/workbench/parts/stats/node/stats.contribution.ts
index b50700962fa..47055cee88c 100644
--- a/src/vs/workbench/parts/stats/node/stats.contribution.ts
+++ b/src/vs/workbench/parts/stats/node/stats.contribution.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Registry } from 'vs/platform/registry/common/platform';
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions';
diff --git a/src/vs/workbench/parts/welcome/walkThrough/node/walkThroughUtils.ts b/src/vs/workbench/parts/welcome/walkThrough/node/walkThroughUtils.ts
index 5a15b9b2e7e..6a28ba06d76 100644
--- a/src/vs/workbench/parts/welcome/walkThrough/node/walkThroughUtils.ts
+++ b/src/vs/workbench/parts/welcome/walkThrough/node/walkThroughUtils.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { ITheme } from 'vs/platform/theme/common/themeService';
 import { editorBackground, ColorDefaults, ColorValue } from 'vs/platform/theme/common/colorRegistry';
diff --git a/src/vs/workbench/services/files/node/watcher/nsfw/watcherApp.ts b/src/vs/workbench/services/files/node/watcher/nsfw/watcherApp.ts
index 61b892cc45d..b16b7d8dcbd 100644
--- a/src/vs/workbench/services/files/node/watcher/nsfw/watcherApp.ts
+++ b/src/vs/workbench/services/files/node/watcher/nsfw/watcherApp.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Server } from 'vs/base/parts/ipc/node/ipc.cp';
 import { WatcherChannel } from 'vs/workbench/services/files/node/watcher/nsfw/watcherIpc';
diff --git a/src/vs/workbench/services/files/node/watcher/unix/watcherApp.ts b/src/vs/workbench/services/files/node/watcher/unix/watcherApp.ts
index 7c91d6c73e3..b79e9870583 100644
--- a/src/vs/workbench/services/files/node/watcher/unix/watcherApp.ts
+++ b/src/vs/workbench/services/files/node/watcher/unix/watcherApp.ts
@@ -2,7 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-'use strict';
 
 import { Server } from 'vs/base/parts/ipc/node/ipc.cp';
 import { WatcherChannel } from 'vs/workbench/services/files/node/watcher/unix/watcherIpc';
diff --git a/src/vs/workbench/services/hash/common/hashService.ts b/src/vs/workbench/services/hash/common/hashService.ts
index e8e2ee18d9d..f04fb9a9227 100644
--- a/src/vs/workbench/services/hash/common/hashService.ts
+++ b/src/vs/workbench/services/hash/common/hashService.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
 
diff --git a/src/vs/workbench/services/hash/node/hashService.ts b/src/vs/workbench/services/hash/node/hashService.ts
index fec0cab111f..6477fb88e93 100644
--- a/src/vs/workbench/services/hash/node/hashService.ts
+++ b/src/vs/workbench/services/hash/node/hashService.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { createHash } from 'crypto';
 import { IHashService } from 'vs/workbench/services/hash/common/hashService';
diff --git a/src/vs/workbench/services/search/node/searchApp.ts b/src/vs/workbench/services/search/node/searchApp.ts
index 293705f38b0..b4af8f9a01a 100644
--- a/src/vs/workbench/services/search/node/searchApp.ts
+++ b/src/vs/workbench/services/search/node/searchApp.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Server } from 'vs/base/parts/ipc/node/ipc.cp';
 import { SearchChannel } from './searchIpc';
diff --git a/src/vs/workbench/services/search/node/worker/searchWorkerApp.ts b/src/vs/workbench/services/search/node/worker/searchWorkerApp.ts
index 173e88e064b..983633cdadf 100644
--- a/src/vs/workbench/services/search/node/worker/searchWorkerApp.ts
+++ b/src/vs/workbench/services/search/node/worker/searchWorkerApp.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 import { Server } from 'vs/base/parts/ipc/node/ipc.cp';
 import { SearchWorkerChannel } from './searchWorkerIpc';
diff --git a/src/vs/workbench/test/electron-browser/api/mock.ts b/src/vs/workbench/test/electron-browser/api/mock.ts
index 9e8c56e11bc..3725eedb9f2 100644
--- a/src/vs/workbench/test/electron-browser/api/mock.ts
+++ b/src/vs/workbench/test/electron-browser/api/mock.ts
@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 
 export interface Ctor<T> {
 	new(): T;