patch 8.1.1608: the evalfunc.c file is too big
Problem: The evalfunc.c file is too big.
Solution: Move sign functionality to sign.c.
diff --git a/src/structs.h b/src/structs.h
index b368c9e..208a11e 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -2903,7 +2903,7 @@
int w_wantcol; // "col" for popup window
int w_firstline; // "firstline" for popup window
int w_want_scrollbar; // when zero don't use a scrollbar
- int w_has_scrollbar; // scrollbar displayed
+ int w_has_scrollbar; // 1 if scrollbar displayed, 0 otherwise
char_u *w_scrollbar_highlight; // "scrollbarhighlight"
char_u *w_thumb_highlight; // "thumbhighlight"
int w_popup_padding[4]; // popup padding top/right/bot/left