clang-format: [Java] Always break after annotations of multiline decls.

Before:
  @Mock DataLoader loooooooooooooooooooooooader =
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;

After:
  @Mock
  DataLoader loooooooooooooooooooooooader =
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@223688 91177308-0d34-0410-b5e6-96231b3b80d8