Updated lock_release to update lock in objaddr list

src/utility/objaddr.rs

@@ -66,6 +66,11 @@ impl ObjAddr {
         self.locks.get_mut(&id)
     }
 
+    /// Update lock at given id
+    pub fn update_lock(&mut self, id: i32, lock: Lock) {
+        self.locks.insert(id, lock);
+    }
+
     /// Searches for a lock of id **id** in self
     pub fn search_thread(&mut self, id: i32) -> Option<&Rc<RefCell<Thread>>> {
         self.threads.get(&id)