Split Size into Size and Offset.

sky/engine/bindings/scripts/templates/interface_dart.template

Index: sky/engine/bindings/scripts/templates/interface_dart.template
diff --git a/sky/engine/bindings/scripts/templates/interface_dart.template b/sky/engine/bindings/scripts/templates/interface_dart.template
index dc421b72cef2b88c4cbfb5f9ab39858e8d88726f..a8a8b9d4bce26d92ac3932cd5aafacb1ab3e6b87 100644
--- a/sky/engine/bindings/scripts/templates/interface_dart.template
+++ b/sky/engine/bindings/scripts/templates/interface_dart.template
@@ -12,7 +12,7 @@ part of dart.sky;
         {%- endif -%}
         {{ arg.dart_type }} {{ arg.name }}
         {%- if arg.is_optional %} {{ ':' if arg.is_named else '='}} {{ arg.dart_default_value }}
-        {#- TODO(eseidel): This does not support having both optional and named arguments! -#}
+        {#- TODO(eseidel): This does not support having both optional and named arguments! (then again, neither does Dart, currently) -#}
         {%- if loop.last -%}{{ '}' if arg.is_named else ']' }}{%- endif -%}
         {%- endif -%}
         {%- if not loop.last %}, {% endif %}