[bindings] partial interfaces should not violate componentization

Source/bindings/scripts/idl_definitions.py

Index: Source/bindings/scripts/idl_definitions.py
diff --git a/Source/bindings/scripts/idl_definitions.py b/Source/bindings/scripts/idl_definitions.py
index ee7158ab663cde7578524829e76c38e02088f376..5664c3848c9ce973c51c4fd793e448314c9567ad 100644
--- a/Source/bindings/scripts/idl_definitions.py
+++ b/Source/bindings/scripts/idl_definitions.py
@@ -275,6 +275,8 @@ class IdlInterface(object):
         self.operations = []
         self.parent = None
         self.stringifier = None
+        self.original_interface = None

[bashi, 2014/10/10 09:48:11]

This looks strange to me.. My understanding is that idl definitions only have
information which come from idl parser. All other properties are set in this
initializer, but |original_interface| and |partial_interfaces| are not. I think
this implies that there would be a better place to hold such information.

[tasak, 2014/10/10 11:43:40]

So interface_dependency_resolver updates idl definitions. This looks also
strange?

[bashi, 2014/10/15 05:29:22]

That means we have two paths; the first path reads an idl file and create
definitions, the second path updates (or additionary creates) definitions based
on dependencies. I feel that it might be clear that if we could explicitly treat
these information separately (information come from each path). But I'm not sure
it's worth doing, so I'm ok with this.

[tasak, 2014/10/15 11:24:18]

As far as I know, we can obtain valid IdlDefinition by using only idl_reader,
not idl_parser.

+        self.partial_interfaces = []
         if not node:  # Early exit for IdlException.__init__
             return