- changed AInventory::HandlePickup to work iteratively instead of recursively.

Two reasons for this:

1. if this has to be routed through the VM each recursion will cost 1000 bytes of stack space which simply is not good.
2. having the virtual function only care about the item itself but not the entire inventory chain is a lot less error prone for scripting.

Since the scripting interface needs a separate caller function anyway this seemed like a good time to change it. The same will be done for the other chained inventory handlers as well.

src/g_game.cpp

@@ -478,15 +478,15 @@ CCMD (useflechette)
 { // Select from one of arti_poisonbag1-3, whichever the player has
 	static const ENamedName bagnames[3] =
 	{
+		NAME_ArtiPoisonBag3,	// use type 3 first because that's the default when the player has none specified.
 		NAME_ArtiPoisonBag1,
-		NAME_ArtiPoisonBag2,
-		NAME_ArtiPoisonBag3
+		NAME_ArtiPoisonBag2
 	};
 
 	if (who == NULL)
 		return;
 
-	PClassActor *type = GetFlechetteType(who);
+	PClassActor *type = who->FlechetteType;
 	if (type != NULL)
 	{
 		AInventory *item;
@@ -497,7 +497,7 @@ CCMD (useflechette)
 		}
 	}
 
-	// The default flechette could not be found. Try all 3 types then.
+	// The default flechette could not be found, or the player had no default. Try all 3 types then.
 	for (int j = 0; j < 3; ++j)
 	{
 		AInventory *item;