vim-patch:8.0.0451: some macros are in lower case

Problem:    Some macros are in lower case.
Solution:   Make a few more macros upper case. Avoid lower case macros use an
            argument twice.
91acfffc1e

src/nvim/cursor.c

@@ -144,7 +144,7 @@ static int coladvance2(
     while (col <= wcol && *ptr != NUL) {
       /* Count a tab for what it's worth (if list mode not on) */
       csize = win_lbr_chartabsize(curwin, line, ptr, col, &head);
-      mb_ptr_adv(ptr);
+      MB_PTR_ADV(ptr);
       col += csize;
     }
     idx = (int)(ptr - line);