(Bloomberg) -- Abu Dhabi Investment Authority is considering buying a minority stake in Dalian Wanda Group Co.’s mall operator, people familiar with the matter said, as the unit revamps its shareholding structure.Most Read from BloombergKing Charles Treated for Cancer in New Health Scare for MonarchyWhy NYC Apartment Buildings Are on Sale Now for 50% OffChina Tightens Some Trading Restrictions for Domestic and Offshore InvestorsEastern Europe’s Richest Woman Pivots $43 Billion Empire WestBonds F