SHANGHAI/TOKYO — U.S. President Donald Trump made his first visit to China in nearly nine years, as the rival superpowers sought to stabilize their fraught relationship.The American president arrived Wednesday evening and left on Friday. The visit included plenty of face time with Chinese President Xi Jinping, from formal bilateral talks to a state banquet, tea and lunch.The leaders are understood to have discussed the Iran war, trade, tensions over Taiwan, and artificial intelligence. Trump brought an entourage of corporate executives including Tesla's Elon Musk, Apple's Tim Cook and Nvidia's Jensen Huang.Further reading:Trump touts 'fantastic trade deals,' Xi stresses 'strategic…