Case C-387/17: Judgment of the Court (First Chamber) of 23 January 2019 (request for a preliminary ruling from the Corte suprema di cassazione — Italy) — Presidenza dei Consiglio dei Ministri v Fallimento Traghetti del Mediterraneo SpA (Reference for a preliminary ruling — State aid — Existing aid and new aid — Classification — Regulation (EC) No 659/1999 — Article 1(b)(iv) and (v) — Principles of legal certainty and protection of legitimate expectations — Applicability — Subsidies granted before the liberalisation of a market initially closed to competition — Action for damages against the Member State brought by a competitor of the beneficiary company)