Added unit tests for the Dart Chrome.* API wrappers.

tools/json_schema_compiler/dart_test/basic_function.idl

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Tests the case of an array of callbacks as an a argument
-
-namespace idl_callback_arrays {
-  callback MyCallback = void(long x);
-
+namespace basic_function {
   interface Functions {
-    static void whatever(MyCallback[] callbacks);
+    // Documentation for the basic function, foo().
+    void foo();
+    
+    // Documentation for the basic static function, staticFoo().
+    static void staticFoo();
   };
 };