View-search-... now hit all the matches, regardless of window position

* lisp/view.el (view-search): Jump to the next/prev occurrence of
the search, even if it's displayed in the buffer (bug#18131).
This seems more logical than the previous (undocumented) behaviour.

lisp/view.el

@@ -957,7 +957,7 @@ for highlighting the match that is found."
      (t (error "No previous View-mode search")))
     (save-excursion
       (if end (goto-char (if (< times 0) (point-max) (point-min)))
-	(move-to-window-line (if (< times 0) 0 -1)))
+	(forward-line (if (< times 0) -1 1)))
       (if (if no (view-search-no-match-lines times regexp)
 	    (re-search-forward regexp nil t times))
 	  (setq where (point))))