Case C-287/12 P: Judgment of the Court (Second Chamber) of 13 June 2013 — Ryanair Ltd v European Commission, Italian Republic, Alitalia — Compagnia Aerea Italiana SpA (Appeal — State aid — Loan granted by the Italian Republic to the airline company Alitalia — Decision declaring the aid unlawful and incompatible — Sale of assets of Alitalia — Decision finding no aid at the conclusion of the preliminary examination phase — Action for annulment — Locus standi — Interested party — Admissibility — Serious difficulties — Competence — Duty to state reasons)