fix missing method in header and stupid deallocation error.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/performance/trunk@35997 72102866-910b-0410-8b05-ffd578937521

GSLinkedList.h

@@ -59,6 +59,10 @@ typedef unsigned int NSUInteger;
  */
 - (id) initCircular;
 
+/** Return the item in the link.
+ */
+- (NSObject*) item;
+
 /** Return the next item in the list containing the receiver,
  * or nil if there are no more items.
  */

GSLinkedList.m

@@ -43,7 +43,7 @@
   return self;
 }
 
-- (id) item
+- (NSObject*) item
 {
   return item;
 }
@@ -119,17 +119,7 @@
 
 - (void) dealloc
 {
-  count = 0;
-  tail = nil;
-  while (nil != head)
-    {
-      GSListLink	*link = head;
-
-      head = link->next;
-      head->next = head->previous = nil;
-      head->owner = nil;
-      [head release];
-    }
+  [self empty];
   [super dealloc];
 }