fix(typings): test our .d.ts with --noImplicitAny

This matches how DefinitelyTyped tests it, so we are
one step closer to publishing the same file we generate.

See #3195

docs/typescript-definition-package/templates/angular2/angular2.d.ts.template.html

@@ -14,7 +14,7 @@ declare module ng {
   type SetterFn = typeof Function;
   type int = number;
   interface Type extends Function {
-    new (...args);
+    new (...args: any[]): Type;
   }
 
   // See https://github.com/Microsoft/TypeScript/issues/1168