add regression test to .wit file

Author: mattwilkinsonn

crates/rust/tests/codegen.rs

@@ -235,25 +235,3 @@ mod method_chaining {
         enable_method_chaining: true
     });
 }
-
-// Regression for #1598: world-level `use t.{r};` inside
-// `future<result<r, _>>` used to emit unresolved bare `R` in vtable{N}.
-#[allow(unused, reason = "testing codegen, not functionality")]
-mod issue_1598_future_result_use {
-    wit_bindgen::generate!({
-        inline: r#"
-        package a:b;
-
-        world w {
-            use t.{r};
-            export f: func() -> future<result<r, string>>;
-        }
-
-        interface t {
-            record r {
-                x: u32,
-            }
-        }
-        "#,
-    });
-}

crates/test/src/csharp.rs

@@ -48,6 +48,7 @@ impl LanguageMethods for Csharp {
                 | "async-resource-func.wit"
                 | "import-export-resource.wit"
                 | "issue-1433.wit"
+                | "issue-1598.wit"
                 | "named-fixed-length-list.wit"
                 | "map.wit"
         )

tests/codegen/issue-1598.wit

@@ -0,0 +1,14 @@
+//@ async = true
+
+package a:b;
+
+world w {
+    use t.{r};
+    export f: async func() -> future<result<r, string>>;
+}
+
+interface t {
+    record r {
+        x: u32,
+    }
+}