[Pipp] Start with support for interfaces in the grammar, but don't do anything with it yet.
[Pipp] Start with support for interfaces in the grammar,
but don't do anything with it yet.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@32961 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot