port shedinja_maker_maybe; resolve within-array party pointers

include/link.h

@@ -258,5 +258,6 @@ void ClearLinkCallback_2(void);
 void sub_80FA42C(void);
 void sub_800B284(struct LinkPlayer * linkPlayer);
 bool8 IsWirelessAdapterConnected(void);
+bool8 sub_800A474(u8 a0);
 
 #endif // GUARD_LINK_H