vim-patch:9.0.1561: display wrong when moving cursor to above the top line (#23644)

Problem:    Display wrong when moving cursor to above the top line and
            'smoothscroll' is set.
Solution:   Call adjust_skipcol() in more places and make it work better.
            (Luuk van Baal, closes vim/vim#12395)

798fa76dbf

src/nvim/textobject.c

@@ -22,6 +22,7 @@
 #include "nvim/mbyte.h"
 #include "nvim/memline.h"
 #include "nvim/memory.h"
+#include "nvim/move.h"
 #include "nvim/normal.h"
 #include "nvim/option_defs.h"
 #include "nvim/pos.h"
@@ -414,6 +415,7 @@ int bck_word(long count, bool bigword, bool stop)
 finished:
     stop = false;
   }
+  adjust_skipcol();
   return OK;
 }
 
@@ -518,6 +520,7 @@ int bckend_word(long count, bool bigword, bool eol)
       }
     }
   }
+  adjust_skipcol();
   return OK;
 }