Fix bug #16961 with visual-order cursor movement and word-wrap.

 src/xdisp.c (Fmove_point_visually): When under word-wrap, accept
 also return value of MOVE_POS_MATCH_OR_ZV from
 move_it_in_display_line_to, when moving from beginning of line to
 point's position.

src/ChangeLog

+2014-03-07  Eli Zaretskii  <eliz@gnu.org>
+
+	* xdisp.c (Fmove_point_visually): When under word-wrap, accept
+	also return value of MOVE_POS_MATCH_OR_ZV from
+	move_it_in_display_line_to, when moving from beginning of line to
+	point's position.  (Bug#16961)
+
 2014-03-07  Martin Rudalics  <rudalics@gmx.at>
 
 	* buffer.c (Vbuffer_list_update_hook): Doc-string fix.

src/xdisp.c

@@ -20895,7 +20895,12 @@ Value is the new character position of point.  */)
 	    new_pos = it.current.pos;
 	  while (it.current_x + it.pixel_width <= target_x
-		 && rc == MOVE_X_REACHED)
+		 && (rc == MOVE_X_REACHED
+		     /* Under word-wrap, move_it_in_display_line_to
+			stops at correct coordinates, but sometimes
+			returns MOVE_POS_MATCH_OR_ZV.  */
+		     || (it.line_wrap == WORD_WRAP
+			 && rc == MOVE_POS_MATCH_OR_ZV)))
 	    {
 	      int new_x = it.current_x + it.pixel_width;