Continue retiring svn_wc_entry_t usage in libsvn_client.
Continue retiring svn_wc_entry_t usage in libsvn_client.

* subversion/libsvn_client/copy.c
  (calculate_target_mergeinfo): Use WC-NG node functions instead of
    svn_wc_entry_t stuffs.  While here, consider locally replaced
    items as "added" for the purposes of mergeinfo determination.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@938198 13f79535-47bb-0310-9956-ffa450edef68

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