fix(tools): match native rss search errors

Map leaf-symlink search-root cap::fs_list failures to wrong_type
with operating-system operation failed, matching native SearchFiles.

Author: fffonion

rss/tools/search_files.rss

@@ -595,6 +595,7 @@ fn walk_search(state: map, path: string, depth: int) -> map {
                         let mut mapped_code: string = code;
                         let mut mapped_message: string = types::map_string(error, "message", "");
                         if mapped_message == "symlinks are not followed" {
+                            mapped_code = "wrong_type";
                             mapped_message = "operating-system operation failed";
                         } else {
                             if code == "wrong_type" {

tests/rss_file_tool_tests.rs

@@ -900,29 +900,7 @@ fn search_caps_invalid_paths_and_symlinks_match_native() {
         &leaf_link_arguments,
     );
     let rss_leaf_link = run_rss_search(&fixture, &fixture.config(), leaf_link_arguments);
-    let expected_leaf_link = json!({
-        "ok": false,
-        "content": "",
-        "data": {},
-        "error": {
-            "code": "path_denied",
-            "message": "operating-system operation failed"
-        },
-        "truncated": false,
-        "artifacts": []
-    });
-    assert_eq!(
-        canonical_envelope(&rss_leaf_link.result),
-        expected_leaf_link
-    );
-    assert_eq!(
-        native_leaf_link
-            .error
-            .as_ref()
-            .map(|error| error.message.as_str()),
-        Some("operating-system operation failed")
-    );
-    assert!(!native_leaf_link.ok);
+    assert_exact_envelope(&native_leaf_link, &rss_leaf_link.result);
 
     let mut config = fixture.config();
     config.max_search_matches = 1;