clang-format: [Java] Don't let annotations confuse return type analysis.
    
    Before:
      @Test
      ReturnType
      doSomething(String aaaaaaaaaaaaa, String bbbbbbbbbbbbbbb) {}
    
    After:
      @Test
      ReturnType doSomething(
          String aaaaaaaaaaaaa, String bbbbbbbbbbbbbbb) {}
    
    llvm-svn: 225964