On the 1.8.x branch: Make everything compile again after
the r1547866 group backport broke it in r1561444.

Approved +1 on IRC by stefan2, rhuijben, breser.

* subversion/libsvn_fs_fs/rep-cache.c
  (open_rep_cache): Instead of svn_io_file_create_empty,
                    use the generic file creation function
                    that is actually available in 1.8.x.

* subversion/libsvn_subr/sqlite.c
  (internal_open): Ditto.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x@1561543 13f79535-47bb-0310-9956-ffa450edef68
On the 1.8.x-r1560723-and-friends branch:
Sync with parent to make everything compile again.
There were no conflicts.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x-r1560723-and-friends@1561544 13f79535-47bb-0310-9956-ffa450edef68