Opinion 1/08: Opinion of the Court (Grand Chamber) of 30 November 2009 — Commission of the European Communities (Opinion pursuant to Article 300(6) EC — General Agreement on Trade in Services (GATS) — Schedules of specific commitments — Conclusion of agreements on the grant of compensation for modification and withdrawal of certain commitments following the accession of new Member States to the European Union — Shared competence — Legal bases — Common commercial policy — Common transport policy)