(This February 4 story corrects milestone date in paragraph 13 to January 2020, from December 2019) By Katanga Johnson WASHINGTON (Reuters) – Stock indexes around the globe traded mixed on Friday despite strong Amazon earnings, while gold prices slipped under pressure from a firmer dollar and higher U.S. Treasury yields as upbeat U.S. jobs data bolstered the case for Federal Reserve rate hikes. Earlier in the session, a sell-off in bonds briefly pushed Germany’s 5-year yield positive for the first time in four years after the European Central Bank was more hawkish than expected. Asian equities…