clang-format: Fix corner case in builder-type calls.

Before:
  aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()->aaaaaaaaaaaaaae(
                                                 0)->aaaaaaaaaaaaaaa();

After:
  aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()
      ->aaaaaaaaaaaaaae(0)
      ->aaaaaaaaaaaaaaa();

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189655 91177308-0d34-0410-b5e6-96231b3b80d8