Fix a bug in IDL parsing related to arrays of callbacks.

tools/json_schema_compiler/test/idl_callback_arrays.idl

Index: tools/json_schema_compiler/test/idl_callback_arrays.idl
diff --git a/tools/json_schema_compiler/test/idl_callback_arrays.idl b/tools/json_schema_compiler/test/idl_callback_arrays.idl
new file mode 100644
index 0000000000000000000000000000000000000000..105e4dbae4846f190b10d68c0720608c01399916
--- /dev/null
+++ b/tools/json_schema_compiler/test/idl_callback_arrays.idl
@@ -0,0 +1,13 @@
+// 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);
+
+  interface Functions {
+    static void whatever(MyCallback[] callbacks);
+  };
+};