Fixes double call of get_items_for_type. (#6626)

## Description


## Checklist

- [x] I have linked to any relevant issues.
- [x] I have commented my code, particularly in hard-to-understand
areas.
- [ ] I have updated the documentation where relevant (API docs, the
reference, and the Sway book).
- [ ] If my change requires substantial documentation changes, I have
[requested support from the DevRel
team](https://github.com/FuelLabs/devrel-requests/issues/new/choose)
- [ ] I have added tests that prove my fix is effective or that my
feature works.
- [x] I have added (or requested a maintainer to add) the necessary
`Breaking*` or `New Feature` labels where relevant.
- [x] I have done my best to ensure that my PR adheres to [the Fuel Labs
Code Review
Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md).
- [x] I have requested a review from the relevant team or maintainers.

Co-authored-by: Joshua Batty <joshpbatty@gmail.com>

Author: esdrubal

sway-core/src/semantic_analysis/type_check_context.rs

@@ -719,14 +719,6 @@ impl<'a> TypeCheckContext<'a> {
             return Err(*err);
         }
 
-        // grab the local module
-        let local_module = self
-            .namespace()
-            .require_module_from_absolute_path(handler, &self.namespace().current_mod_path)?;
-
-        // grab the local items from the local module
-        let local_items = local_module.get_items_for_type(self.engines, type_id);
-
         // resolve the type
         let type_id = resolve_type(
             handler,
@@ -743,16 +735,26 @@ impl<'a> TypeCheckContext<'a> {
         )
         .unwrap_or_else(|err| type_engine.id_of_error_recovery(err));
 
-        // grab the module where the type itself is declared
-        let type_module = self
+        // grab the local module
+        let local_module = self
             .namespace()
-            .require_module_from_absolute_path(handler, &item_prefix.to_vec())?;
+            .require_module_from_absolute_path(handler, &self.namespace().current_mod_path)?;
 
-        // grab the items from where the type is declared
-        let mut type_items = type_module.get_items_for_type(self.engines, type_id);
+        // grab the local items from the local module
+        let local_items = local_module.get_items_for_type(self.engines, type_id);
 
         let mut items = local_items;
-        items.append(&mut type_items);
+        if item_prefix.to_vec() != self.namespace().current_mod_path {
+            // grab the module where the type itself is declared
+            let type_module = self
+                .namespace()
+                .require_module_from_absolute_path(handler, &item_prefix.to_vec())?;
+
+            // grab the items from where the type is declared
+            let mut type_items = type_module.get_items_for_type(self.engines, type_id);
+
+            items.append(&mut type_items);
+        }
 
         let mut matching_item_decl_refs: Vec<ty::TyTraitItem> = vec![];