Compile with --noImplicitThis

1. Add to various tsconfig.json
2. Add to Jakefile
3. Add annotations where needed.
4. Add workaround to shims.ts, which uses toplevel `this`.

Jakefile.js

@@ -284,7 +284,7 @@ var builtLocalCompiler = path.join(builtLocalDirectory, compilerFilename);
 function compileFile(outFile, sources, prereqs, prefixes, useBuiltCompiler, opts, callback) {
     file(outFile, prereqs, function() {
         var compilerPath = useBuiltCompiler ? builtLocalCompiler : LKGCompiler;
-        var options = "--noImplicitAny --noEmitOnError --types --pretty";
+        var options = "--noImplicitAny --noImplicitThis --noEmitOnError --types --pretty";
         opts = opts || {};
         // Keep comments when specifically requested
         // or when in debug mode.

src/compiler/core.ts

@@ -1237,20 +1237,20 @@ namespace ts {
         getSignatureConstructor(): new (checker: TypeChecker) => Signature;
     }
 
-    function Symbol(flags: SymbolFlags, name: string) {
+    function Symbol(this: Symbol, flags: SymbolFlags, name: string) {
         this.flags = flags;
         this.name = name;
         this.declarations = undefined;
     }
 
-    function Type(checker: TypeChecker, flags: TypeFlags) {
+    function Type(this: Type, checker: TypeChecker, flags: TypeFlags) {
         this.flags = flags;
     }
 
     function Signature(checker: TypeChecker) {
     }
 
-    function Node(kind: SyntaxKind, pos: number, end: number) {
+    function Node(this: Node, kind: SyntaxKind, pos: number, end: number) {
         this.kind = kind;
         this.pos = pos;
         this.end = end;

src/compiler/program.ts

@@ -1398,7 +1398,7 @@ namespace ts {
             return noDiagnosticsTypeChecker || (noDiagnosticsTypeChecker = createTypeChecker(program, /*produceDiagnostics:*/ false));
         }
 
-        function emit(sourceFile?: SourceFile, writeFileCallback?: WriteFileCallback, cancellationToken?: CancellationToken): EmitResult {
+        function emit(this: Program, sourceFile?: SourceFile, writeFileCallback?: WriteFileCallback, cancellationToken?: CancellationToken): EmitResult {
             return runWithCancellationToken(() => emitWorker(this, sourceFile, writeFileCallback, cancellationToken));
         }
 

src/compiler/sys.ts

@@ -200,7 +200,7 @@ namespace ts {
                 directoryExists(path: string) {
                     return fso.FolderExists(path);
                 },
-                createDirectory(directoryName: string) {
+                createDirectory(this: System, directoryName: string) {
                     if (!this.directoryExists(directoryName)) {
                         fso.CreateFolder(directoryName);
                     }
@@ -500,7 +500,7 @@ namespace ts {
                 },
                 fileExists,
                 directoryExists,
-                createDirectory(directoryName: string) {
+                createDirectory(this: System, directoryName: string) {
                     if (!this.directoryExists(directoryName)) {
                         _fs.mkdirSync(directoryName);
                     }

src/compiler/tsconfig.json

@@ -1,6 +1,7 @@
 {
     "compilerOptions": {
         "noImplicitAny": true,
+        "noImplicitThis": true,
         "removeComments": true,
         "preserveConstEnums": true,
         "outFile": "../../built/local/tsc.js",

src/server/editorServices.ts

@@ -2081,7 +2081,7 @@ namespace ts.server {
             const walkFns = {
                 goSubtree: true,
                 done: false,
-                leaf: function (relativeStart: number, relativeLength: number, ll: LineLeaf) {
+                leaf: function (this: ILineIndexWalker, relativeStart: number, relativeLength: number, ll: LineLeaf) {
                     if (!f(ll, relativeStart, relativeLength)) {
                         this.done = true;
                     }

src/server/tsconfig.json

@@ -1,6 +1,7 @@
 {
     "compilerOptions": {
         "noImplicitAny": true,
+        "noImplicitThis": true,
         "removeComments": true,
         "preserveConstEnums": true,
         "out": "../../built/local/tsserver.js",

src/services/shims.ts

@@ -16,7 +16,7 @@
 /// <reference path='services.ts' />
 
 /* @internal */
-let debugObjectHost = (<any>this);
+let debugObjectHost = new Function("return this")();
 
 // We need to use 'null' to interface with the managed side.
 /* tslint:disable:no-null-keyword */

src/services/tsconfig.json

@@ -1,6 +1,7 @@
 {
     "compilerOptions": {
         "noImplicitAny": true,
+        "noImplicitThis": true,
         "removeComments": false,
         "preserveConstEnums": true,
         "outFile": "../../built/local/typescriptServices.js",