clang-format: [Java] Fix incorrect recognition of annonymous classes.

clang-format: [Java] Fix incorrect recognition of annonymous classes.

Before:
  someFunction(new Runnable() { public void run() { System.out.println(42);
  }
  });

After:
  someFunction(new Runnable() {
    public void run() {
      System.out.println(42);
    }
  });

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@225142 91177308-0d34-0410-b5e6-96231b3b80d8