Asia stocks make cautious gains as China worries slow recovery rally

SINGAPORE (Reuters) - Asian stocks eked out gains on Tuesday as investors' focus on the prospects of a global coronavirus recovery won out over familiar worries about Sino-U.S. relations and the depth of economic damage.Hampering broader global risk appetite, however, was U.S. President Donald Trump's vow to use force to end violent protests in American cities, which kept Wall Street stock futures negative in Asia.MSCI's broadest index of Asia-Pacific shares outside Japan , which had its best..