Extract ++ and -- from expressions

src/main/java/appeng/util/iterators/AEInvIterator.java

@@ -45,7 +45,9 @@ public class AEInvIterator implements Iterator<IAEItemStack>
 	@Override
 	public IAEItemStack next()
 	{
-		return this.inv.getAEStackInSlot( this.x++ );
+		IAEItemStack result = this.inv.getAEStackInSlot( this.x );
+		this.x++;
+		return result;
 	}
 
 	@Override

src/main/java/appeng/util/iterators/ChainedIterator.java

@@ -39,7 +39,9 @@ public class ChainedIterator<T> implements Iterator<T>
 	@Override
 	public T next()
 	{
-		return this.list[this.offset++];
+		T result = this.list[this.offset];
+		this.offset++;
+		return result;
 	}
 
 	@Override

src/main/java/appeng/util/iterators/InvIterator.java

@@ -45,7 +45,9 @@ public class InvIterator implements Iterator<ItemStack>
 	@Override
 	public ItemStack next()
 	{
-		return this.inv.getStackInSlot( this.x++ );
+		ItemStack result = this.inv.getStackInSlot( this.x );
+		this.x++;
+		return result;
 	}
 
 	@Override

src/main/java/appeng/util/iterators/StackToSlotIterator.java

@@ -44,7 +44,8 @@ public class StackToSlotIterator implements Iterator<ItemSlot>
 	@Override
 	public ItemSlot next()
 	{
-		this.iss.slot = this.x++;
+		this.iss.slot = this.x;
+		this.x++;
 		this.iss.setItemStack( this.is.next() );
 		return this.iss;
 	}