DAVOS, Switzerland — No one was declaring President Trump a changed man. Privately, executives and global leaders who had gathered in Davos continued to worry that the American president could yet indulge his worst instincts — and his penchant for shock on Twitter — to deliver a geopolitical crisis, open up a new front in trade hostilities or offend a vast group of people.But a rough consensus emerged over Mr. Trump’s two-day visit that his administration had shown itself to be more pragmatic than advertised. Many were inclined to view the president’s most extreme positions as just aggressive bargaining postures.“There’s...