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

tools/json_schema_compiler/idl_schema_test.py

 #!/usr/bin/env python
 # 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.
 
 import idl_schema
 import unittest
 
 def getFunction(schema, name):
   for item in schema['functions']:
@@ skipping 25 matching lines @@
                  'parameters':[{'name':'arg', '$ref':'MyType1'}]}]
     self.assertEquals(expected, getParams(schema, 'function6'))
 
   def testCallbackWithArrayArgument(self):
     schema = self.idl_basics
     expected = [{'type':'function', 'name':'Callback4',
                  'parameters':[{'name':'arg', 'type':'array',
                                 'items':{'$ref':'MyType2'}}]}]
     self.assertEquals(expected, getParams(schema, 'function12'))
 
+
+  def testArrayOfCallbacks(self):
+    schema = idl_schema.Load('test/idl_callback_arrays.idl')[0]
+    expected = [{'type':'array', 'name':'callbacks',
+                 'items':{'type':'function', 'name':'MyCallback',
+                          'parameters':[{'type':'integer', 'name':'x'}]}}]
+    self.assertEquals(expected, getParams(schema, 'whatever'))
+
 if __name__ == '__main__':
   unittest.main()