Change internals of compose_editor over to use SVN_ERR; this simplifies some upcoming changes.
Change internals of compose_editor over to use SVN_ERR; this
simplifies some upcoming changes.

* compose_editor

  (struct dir_baton): the parent_dir_baton is no longer needed.
  (struct file_baton); add the edit baton. remove dir_baton. change
    all users of fb->dir_baton->edit_baton to do fb->edit_baton.

  (set_target_revision, delete_entry, close_directory, close_file,
      close_edit, abort_edit, window_handler, apply_textdelta,
      change_file_prop, change_dir_prop):
    use SVN_ERR() rather than if/return idioms.

  (open_root, add_directory, open_directory): remove assignment of the
    parent_dir_baton.

  (add_file, open_file): remove assignment of dir_baton, add
    edit_baton.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@841526 13f79535-47bb-0310-9956-ffa450edef68

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