Heartbroken Hollywood icon Clint Eastwood announced the passing of his long-term partner Christina Sandera on Thursday night. RadarOnline.com can reveal that Sandera, who had been with Eastwood for 10 years, died at just 61 years old. In a statement issued Thursday night to the Hollywood Reporter, the 93-year-old actor-director said: “Christina was a lovely, caring woman, and I will miss her very much.” A Warner Bros. spokesperson told the outlet that no further information would be forthcoming. The couple started dating in 2014 after meeting at Eastwood’s restaurant Carmel-by-the-Sea where Sa…