Initial bit of work to ensure that an SDB is opened for a directory within the DB. Moving forward, we may create PDH handles without opening their database.
Initial bit of work to ensure that an SDB is opened for a directory within
the DB. Moving forward, we may create PDH handles without opening their
database.

* subversion/libsvn_wc/wc_db.c:
  (ensure_sdb_opened): new function
  (parse_local_abspath): call ensure_sdb_opened when appropriate


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@877118 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion