TOKYO - China's foreign policy chief Yang Jiechi will visit Japan on Feb. 28 and 29, a Japanese government source said Friday, amid speculation that Chinese President Xi Jinping may postpone an upcoming state visit to deal with the coronavirus outbreak.Xi had been expected to visit Japan around early April for meetings with Prime Minister Shinzo Abe and Emperor Naruhito, becoming the first Chinese leader to make a state visit in more than a decade.Plans for his visit follow a recent improvement in bilateral relations, with Abe stressing the importance of stepping up cooperation despite a t…READ FULL ARTICLE