The world’s largest passenger cruise ship reached Miami early Wednesday morning, a long-anticipated arrival expected to further invigorate South Florida’s tourism economy, reinforce the Magic City’s global and national relevance, and potentially expand who takes cruises and why. Dubbed the Icon of the Seas, the 1,198-foot-long ship with a capacity of 5,610 guests, entered Government Cut close to 7 a.m., meeting its pilot boat, then docking at PortMiami. Equipped with six undulating water slides in its own adventure theme park, over 40 restaurants and drinking establishments including two dueli…