Fix vertical cursor motion when cursor is on the fringe

* lisp/simple.el (line-move-visual): Fix an off-by-one error in
setting temporary-goal-column when newline overflows into the
fringe.  Support that use case in R2L paragraphs as well.

diff --git a/lisp/simple.el b/lisp/simple.el
index 16f69f2bbe7470c79be1903f82ee9c6b3cd995e7..58f837219239462bfb2a6dc5a5d45f85382032e8 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -6261,9 +6261,10 @@ If NOERROR, don't signal an error if we can't move that many lines."
       (let ((posn (posn-at-point))
            x-pos)
        (cond
-        ;; Handle the `overflow-newline-into-fringe' case:
-        ((eq (nth 1 posn) 'right-fringe)
-         (setq temporary-goal-column (cons (- (window-width) 1) hscroll)))
+        ;; Handle the `overflow-newline-into-fringe' case
+        ;; (left-fringe is for the R2L case):
+        ((memq (nth 1 posn) '(right-fringe left-fringe))
+         (setq temporary-goal-column (cons (window-width) hscroll)))
         ((car (posn-x-y posn))
          (setq x-pos (car (posn-x-y posn)))
          ;; In R2L lines, the X pixel coordinate is measured from the