diff --git a/lib/typescript.js b/lib/typescript.js
index a36522ece4953..6ebad95e676db 100644
--- a/lib/typescript.js
+++ b/lib/typescript.js
@@ -1,18 +1,18 @@
-/*! *****************************************************************************
-Copyright (c) Microsoft Corporation. All rights reserved. 
-Licensed under the Apache License, Version 2.0 (the "License"); you may not use
-this file except in compliance with the License. You may obtain a copy of the
-License at http://www.apache.org/licenses/LICENSE-2.0  
- 
-THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 
-MERCHANTABLITY OR NON-INFRINGEMENT. 
- 
-See the Apache Version 2.0 License for specific language governing permissions
-and limitations under the License.
-***************************************************************************** */
-
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved. 
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0  
+ 
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 
+MERCHANTABLITY OR NON-INFRINGEMENT. 
+ 
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
 var __extends = (this && this.__extends) || function (d, b) {
     for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
     function __() { this.constructor = d; }
@@ -46072,19 +46072,19 @@ var ts;
             //       __metadata("design:type", Function),
             //       __metadata("design:paramtypes", [Object]),
             //       __metadata("design:returntype", void 0)
-            //   ], C.prototype, "method", undefined);
+            //   ], C.prototype, "method", null);
             //
             // The emit for an accessor is:
             //
             //   __decorate([
             //       dec
-            //   ], C.prototype, "accessor", undefined);
+            //   ], C.prototype, "accessor", null);
             //
             // The emit for a property is:
             //
             //   __decorate([
             //       dec
-            //   ], C.prototype, "prop");
+            //   ], C.prototype, "prop", undefined);
             //
             var prefix = getClassMemberPrefix(node, member);
             var memberName = getExpressionForPropertyName(member, /*generateNameForComputedPropertyName*/ true);