Allow leading underscore on identifier names in IDL parser

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 103 matching lines @@
         [{'description': ('So should this comment about the argument. '
                           '<em>HTML</em> is fine too.'),
           'name': 'arg',
           '$ref': 'idl_basics.MyType1'}],
         func['parameters'])
     func = getFunction(schema, 'function4')
     self.assertEquals(('This tests if "double-quotes" are escaped correctly.'
                        '<br/><br/> It also tests a comment with two newlines.'),
                       func['description'])
 
+  def testReservedWords(self):
+    schema = idl_schema.Load('test/idl_reserved_words.idl')[0]
+
+    foo_type = getType(schema, 'reserved_words.Foo')
+    self.assertEquals(['float', 'DOMString'], foo_type['enum'])
+
+    enum_type = getType(schema, 'reserved_words.enum')
+    self.assertEquals(['callback', 'namespace'], enum_type['enum'])
+
+    dictionary = getType(schema, 'reserved_words.dictionary');
+    self.assertEquals('integer', dictionary['properties']['long']['type'])
+
+    mytype = getType(schema, 'reserved_words.MyType')
+    self.assertEquals('string', mytype['properties']['interface']['type'])
+
+    params = getParams(schema, 'static')
+    self.assertEquals('reserved_words.Foo', params[0]['$ref'])
+    self.assertEquals('reserved_words.enum', params[1]['$ref'])
+
 if __name__ == '__main__':
   unittest.main()