* rootcontext.cs (ResolveTree): Always set the
interface_resolve_order, because nested interfaces will be calling
into us.
* class.cs (GetInterfaceOrClass): Track the same resolution
process used by TypeManager.LookupType. This fixes the nested
type lookups in class declarations (separate path from
LookupType).
(TypeContainer.DefineType): Also define nested interfaces.
(TypeContainer.RegisterOrder): New public function used to
register the order in which child interfaces need to be closed.
Nested interfaces need to be closed after their parents have been
created.
* interface.cs (InterfaceAttr): Put all the logic for computing
the interface attribute here.
(DefineInterface): Register our interface order with the
RootContext or with the TypeContainer depending on the case.
New test as well.
svn path=/trunk/mcs/; revision=3115
