patch 8.0.1123: cannot define a toolbar for a window
Problem: Cannot define a toolbar for a window.
Solution: Add a window-local toolbar.
diff --git a/src/proto/syntax.pro b/src/proto/syntax.pro
index 0f64cea..f6ecb8c 100644
--- a/src/proto/syntax.pro
+++ b/src/proto/syntax.pro
@@ -46,6 +46,7 @@
char_u *highlight_color(int id, char_u *what, int modec);
long_u highlight_gui_color_rgb(int id, int fg);
int syn_name2id(char_u *name);
+int syn_name2attr(char_u *name);
int highlight_exists(char_u *name);
char_u *syn_id2name(int id);
int syn_namen2id(char_u *linep, int len);