patch 8.0.1138: click in window toolbar starts Visual mode
Problem: Click in window toolbar starts Visual mode.
Solution: Add the MOUSE_WINBAR flag.
diff --git a/src/vim.h b/src/vim.h
index 1c91b7d..43dbd8c 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1898,6 +1898,7 @@
# define CURSOR_MOVED 0x100
# define MOUSE_FOLD_CLOSE 0x200 /* clicked on '-' in fold column */
# define MOUSE_FOLD_OPEN 0x400 /* clicked on '+' in fold column */
+# define MOUSE_WINBAR 0x800 /* in window toolbar */
/* flags for jump_to_mouse() */
# define MOUSE_FOCUS 0x01 /* need to stay in this window */