patch 8.2.0222: Vim9: optional function arguments don't work yet
Problem: Vim9: optional function arguments don't work yet.
Solution: Implement optional function arguments.
diff --git a/src/structs.h b/src/structs.h
index bb3e72f..7aff8af 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1515,6 +1515,8 @@
type_T **uf_arg_types; // argument types (count == uf_args.ga_len)
type_T *uf_ret_type; // return type
garray_T uf_type_list; // types used in arg and return types
+ int *uf_def_arg_idx; // instruction indexes for evaluating
+ // uf_def_args; length: uf_def_args.ga_len + 1
char_u *uf_va_name; // name from "...name" or NULL
type_T *uf_va_type; // type from "...name: type" or NULL