patch 8.1.1140: not easy to find out what neighbors a window has
Problem: Not easy to find out what neighbors a window has.
Solution: Add more arguments to winnr(). (Yegappan Lakshmanan, closes #3993)
diff --git a/src/proto/window.pro b/src/proto/window.pro
index 0efff64..5020b2f 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -37,6 +37,8 @@
void win_goto(win_T *wp);
win_T *win_find_nr(int winnr);
tabpage_T *win_find_tabpage(win_T *win);
+win_T *win_vert_neighbor(tabpage_T *tp, win_T *wp, int up, long count);
+win_T *win_horz_neighbor(tabpage_T *tp, win_T * wp, int left, long count);
void win_enter(win_T *wp, int undo_sync);
win_T *buf_jump_open_win(buf_T *buf);
win_T *buf_jump_open_tab(buf_T *buf);