ls **/* does not show hidden files without the -a flag (#2407)

* fixed: .*.(ext|*)

* ls **/* does not return hidden files without the -a flag

* fixed formatting

* fixed clippy issues

* fixed clippy issues, v2

* added `#[cfg(unix)]` to windows-failing test

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

@@ -214,6 +214,44 @@ fn lists_all_hidden_files_when_glob_contains_dot() {
     })
 }
 
+#[test]
+// TODO Remove this cfg value when we have an OS-agnostic way
+// of creating hidden files using the playground.
+#[cfg(unix)]
+fn lists_all_hidden_files_when_glob_does_not_contain_dot() {
+    Playground::setup("ls_test_8", |dirs, sandbox| {
+        sandbox
+            .with_files(vec![
+                EmptyFile("root1.txt"),
+                EmptyFile("root2.txt"),
+                EmptyFile(".dotfile1"),
+            ])
+            .within("dir_a")
+            .with_files(vec![
+                EmptyFile("yehuda.10.txt"),
+                EmptyFile("jonathan.10.txt"),
+                EmptyFile(".dotfile2"),
+            ])
+            .within(".dir_b")
+            .with_files(vec![
+                EmptyFile("andres.10.txt"),
+                EmptyFile("chicken_not_to_be_picked_up.100.txt"),
+                EmptyFile(".dotfile3"),
+            ]);
+
+        let actual = nu!(
+            cwd: dirs.test(), pipeline(
+            r#"
+                ls **/*
+                | count
+                | echo $it
+            "#
+        ));
+
+        assert_eq!(actual.out, "5");
+    })
+}
+
 #[test]
 fn list_all_columns() {
     Playground::setup(