feat: Provide metadata for type patterns

completion/src/lib.rs

@@ -1583,7 +1583,7 @@ pub fn get_metadata<'a>(
                     value: Expr::Infix { .. },
                     ..
                 }) => env.get(id),
-                _ => None,
+                _ => env.get(id),
             },
             _ => None,
         })

completion/tests/completion.rs

@@ -427,6 +427,26 @@ module.abc
     assert_eq!(result, expected);
 }
 
+#[test]
+fn metadata_at_type_pattern() {
+    let _ = env_logger::try_init();
+
+    let text = r#"
+let { Test } =
+    /// test
+    type Test = Int
+    { Test }
+()
+"#;
+    let result = get_metadata(text, loc(text, 1, 7));
+
+    let expected = Some(Metadata {
+        comment: Some(line_comment("test".to_string())),
+        ..Metadata::default()
+    });
+    assert_eq!(result, expected);
+}
+
 #[test]
 fn suggest_metadata_at_variable() {
     let _ = env_logger::try_init();