Last preparations for switching to a different type for ra_svn item lists.
Last preparations for switching to a different type for ra_svn item lists.

This replaces the last usages of APR arrays for protocol items with the
appropriate ra_svn type and access macro.

* subversion/svnserve/serve.c
  (get_dir,
   get_mergeinfo,
   log_cmd,
   get_locations,
   lock_many,
   unlock_many): Use the new array type and access macro for item lists.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1701316 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion