Implements !Unpin on TailQueue and TailQueueEntry

Author: ultimaweapon

src/queue/mod.rs

@@ -1,13 +1,17 @@
+use core::marker::PhantomPinned;
+
 /// Represents a struct produced by `TAILQ_HEAD`.
 #[repr(C)]
 pub struct TailQueue<T> {
     pub first: *mut T,     // tqh_first
     pub last: *mut *mut T, // tqh_last
+    pub pin: PhantomPinned,
 }
 
 /// Represents a struct produced by `TAILQ_ENTRY`.
 #[repr(C)]
 pub struct TailQueueEntry<T> {
     pub next: *mut T,      // tqe_next
     pub prev: *mut *mut T, // tqe_prev
+    pub pin: PhantomPinned,
 }