vim-patch:8.0.0678 closing a window does not trigger resizing

Closes #6748

Problem:    When 'equalalways' is set and closing a window in a separate
            frame, not all window sizes are adjusted. (Glacambre)
Solution:   Resize all windows if the new current window is not in the same
            frame as the closed window. (closes vim/vim#1707)

8eeeba8c02

src/nvim/version.c

@@ -274,7 +274,7 @@ static const int included_patches[] = {
   // 681,
   // 680,
   // 679,
-  // 678,
+  678,
   // 677,
   // 676,
   // 675,