Fix parking_lot::{Mutex, RwLock} re-exports

Fix the re-exports for `parking_lot::{Mutex, RwLock}` no longer
functioning due to the conditional compilation gate removal
(`parking_lot` is now always compiled).

Tests have been updated to ensure the functionality of these re-exports.

1 files changed, 5 insertions, 2 deletions

diff --git a/tests/test_prelude.rs b/tests/test_prelude.rs
index 2317fc0..7233b2a 100644
--- a/tests/test_prelude.rs
+++ b/tests/test_prelude.rs
@@ -1,8 +1,11 @@
+#![allow(unused_imports)]
+
 extern crate serenity;
 
-#[allow(unused_imports)]
 use serenity::prelude::{Mentionable, SerenityError};
 
-#[allow(unused_imports)]
 #[cfg(feature = "client")]
 use serenity::prelude::{Client, ClientError};
+
+// parking_lot re-exports
+use serenity::prelude::{Mutex, RwLock};