Eliminate node walker in svn_client__get_wc_mergeinfo_catalog...sort of.
Eliminate node walker in svn_client__get_wc_mergeinfo_catalog...sort of.

* subversion/libsvn_client/mergeinfo.c

  (get_mergeinfo_catalog_walk_baton,
   get_subtree_mergeinfo_walk_cb): Remove.

  (svn_client__get_wc_mergeinfo_catalog):
   Replace use of svn_wc__node_walk_children() to obtain subtree mergeinfo
   with a call to svn_client_propget3() at depth infinity.  Unfortunately
   svn_client_propget3() still uses the svn_wc__node_walk_children(), but
   that should go away soon too.



git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1081585 13f79535-47bb-0310-9956-ffa450edef68

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