IDL: Drop value conversion (V8 -> C++) macros from generated code

Source/bindings/scripts/v8_interface.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 # coding=utf-8
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 663 matching lines @@
         overload_extended_attributes = [
             method['custom_registration_extended_attributes']
             for method in overloads]
         for extended_attribute in v8_methods.CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES:
             if common_key(overload_extended_attributes, extended_attribute) is None:
                 raise ValueError('Overloads of %s have conflicting extended attribute %s'
                                  % (name, extended_attribute))
 
     # Check and fail if overloads disagree about whether the return type
     # is a Promise or not.
-    promise_overload_count = sum(1 for method in overloads if method.get('idl_type') == 'Promise')
+    promise_overload_count = sum(1 for method in overloads if method.get('returns_promise'))
     if promise_overload_count not in (0, len(overloads)):
         raise ValueError('Overloads of %s have conflicting Promise/non-Promise types'
                          % (name))
 
     has_overload_visible = False
     has_overload_not_visible = False
     for overload in overloads:
         if overload.get('visible', True):
             # If there exists an overload which is visible, need to generate
             # overload_resolution, i.e. overlods_visible should be True.
@@ skipping 588 matching lines @@
         'has_type_checking_interface':
             (has_extended_attribute_value(interface, 'TypeChecking', 'Interface') or
              has_extended_attribute_value(setter, 'TypeChecking', 'Interface')) and
             idl_type.is_wrapper_type,
         'idl_type': idl_type.base_type,
         'is_custom': 'Custom' in extended_attributes,
         'is_nullable': idl_type.is_nullable,
         'is_raises_exception': is_raises_exception,
         'name': cpp_name(setter),
         'v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
-            extended_attributes, 'v8Value', 'propertyValue', restricted_float),
+            extended_attributes, 'v8Value', 'propertyValue', restricted_float=restricted_float),
     }
 
 
 def property_deleter(deleter):
     if not deleter:
         return None
 
     idl_type = deleter.idl_type
     if str(idl_type) != 'boolean':
         raise Exception(
             'Only deleters with boolean type are allowed, but type is "%s"' %
             idl_type)
     extended_attributes = deleter.extended_attributes
     return {
         'is_custom': 'Custom' in extended_attributes,
         'is_raises_exception': 'RaisesException' in extended_attributes,
         'name': cpp_name(deleter),
     }