LONDON/HONG KONG—European shares slipped on Friday but held their gains for the week as uncertainty around the fate of debt-ridden China Evergrande weighed on investor sentiment. The regionwide STOXX 600 index slipped 0.78 percent after a three-day run of gains. Britain’s FTSE 100 and Germany’s also weakened. Still, European shares look set to end the week higher despite Monday’s sharp selloff, as investors turned more positive on the outlook for global growth following the U.S. Federal Reserve policy meeting and on hopes the Evergrande crisis could be contained. It was a different story in Asia where MSCI’s broadest index of Asia-Pacific shares outside Japan was little changed on the day but has fallen 0.7 percent this week and is poised for its third weekly loss in a row. Japan’s Nikkei rose 2 percent, catching up with global gains after the market was closed for a public holiday. Chinese blue chips …