Suggest a list of possible arg labels when an argument is unlabelled (#6755)

Signed-off-by: Nick Cameron <nrc@ncameron.org>

rust/kcl-lib/src/std/args.rs

@@ -62,6 +62,7 @@ pub struct KwArgs {
     pub unlabeled: Option<Arg>,
     /// Labeled args.
     pub labeled: IndexMap<String, Arg>,
+    pub errors: Vec<Arg>,
 }
 
 impl KwArgs {

rust/kcl-lib/src/std/array.rs

@@ -88,6 +88,7 @@ async fn call_map_closure(
     let kw_args = KwArgs {
         unlabeled: Some(Arg::new(input, source_range)),
         labeled: Default::default(),
+        errors: Vec::new(),
     };
     let args = Args::new_kw(
         kw_args,
@@ -233,6 +234,7 @@ async fn call_reduce_closure(
     let kw_args = KwArgs {
         unlabeled: Some(Arg::new(elem, source_range)),
         labeled,
+        errors: Vec::new(),
     };
     let reduce_fn_args = Args::new_kw(
         kw_args,

rust/kcl-lib/src/std/patterns.rs

@@ -430,6 +430,7 @@ async fn make_transform<T: GeometryTrait>(
     let kw_args = KwArgs {
         unlabeled: Some(Arg::new(repetition_num, source_range)),
         labeled: Default::default(),
+        errors: Vec::new(),
     };
     let transform_fn_args = Args::new_kw(
         kw_args,