vim-patch:8.0.1214: accessing freed memory when EXITFREE is set

Problem:    Accessing freed memory when EXITFREE is set and there is more than
            one tab and window. (Dominique Pelle)
Solution:   Free options later.  Skip redraw when exiting.
4f1982800f

src/nvim/screen.c

@@ -149,7 +149,7 @@ void redraw_later(int type)
 
 void redraw_win_later(win_T *wp, int type)
 {
-  if (wp->w_redr_type < type) {
+  if (!exiting && wp->w_redr_type < type) {
     wp->w_redr_type = type;
     if (type >= NOT_VALID)
       wp->w_lines_valid = 0;