Update tests to use '@noLib: true'.

tests/cases/compiler/noDefaultLib.ts

@@ -1,3 +1,4 @@
+// @noLib: true
 /// <reference no-default-lib="true"/>
 var x;
 

tests/cases/conformance/decorators/1.0lib-noErrors.ts

@@ -1,4 +1,5 @@
 // @target: ES5
+// @noLib: true
 /* *****************************************************************************
 Copyright (c) Microsoft Corporation. All rights reserved. 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not use

tests/cases/conformance/parser/ecmascript5/RegressionTests/parser509698.ts

@@ -1,3 +1,4 @@
+// @noLib: true
 /// <style requireSemi="on" />
 /// <reference no-default-lib="true"/>
 declare function foo(): void;