Output error when ls into a file without permission (#3218)

* Output error when ls into a file without permission

* added test to check fails when ls into prohibited dir

* fix lint

* trigger wasm build

* Update filesystem_shell.rs

Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>

crates/nu-command/tests/commands/ls.rs

@@ -244,6 +244,27 @@ fn lists_all_hidden_files_when_glob_does_not_contain_dot() {
     })
 }
 
+#[test]
+#[cfg(unix)]
+fn fails_with_ls_to_dir_without_permission() {
+    Playground::setup("ls_test_1", |dirs, sandbox| {
+        sandbox.within("dir_a").with_files(vec![
+            EmptyFile("yehuda.11.txt"),
+            EmptyFile("jonathan.10.txt"),
+        ]);
+
+        let actual = nu!(
+            cwd: dirs.test(), pipeline(
+            r#"
+                chmod 000 dir_a; ls dir_a
+            "#
+        ));
+        assert!(actual
+            .err
+            .contains("The permissions of 0 do not allow access for this user"));
+    })
+}
+
 #[test]
 fn lists_files_including_starting_with_dot() {
     Playground::setup("ls_test_9", |dirs, sandbox| {