Resolve externed prototypes in C files

include/berry_powder.h

@@ -3,5 +3,6 @@
 
 u32 GetBerryPowder(void);
 void SetBerryPowder(u32 *powder, u32 amount);
+void sub_815EE6C(u32 newKey);
 
 #endif //GUARD_BERRY_POWDER_H

include/item.h

@@ -72,10 +72,12 @@ u16 BagGetQuantityByPocketPosition(u8 pocketId, u16 itemId);
 bool8 itemid_is_unique(u16 itemId);
 void BagPocketCompaction(struct ItemSlot * slots, u8 capacity);
 u16 GetPcItemQuantity(u16 *);
+void SetBagPocketsPointers(void);
 
 void ItemPcCompaction(void);
 void RemoveItemFromPC(u16 itemId, u16 quantity);
 void SortAndCompactBagPocket(struct BagPocket * pocket);
 u8 CountItemsInPC(void);
+void ApplyNewEncryptionKeyToBagItems_(u32 newKey);
 
 #endif // GUARD_ITEM_H

include/overworld.h

@@ -143,5 +143,7 @@ bool32 sub_8058318(void);
 void CB2_ReturnToStartMenu(void);
 void CB2_WhiteOut(void);
 void c2_8056854(void);
+void sub_8054F38(u32 newKey);
+void sub_8055778(int);
 
 #endif //GUARD_OVERWORLD_H

include/quest_log.h

@@ -46,6 +46,7 @@ void sub_811231C(void);
 void sub_81139BC(void);
 void *QuestLogGetFlagOrVarPtr(bool8 isFlag, u16 idx);
 void QuestLogSetFlagOrVar(bool8 isFlag, u16 idx, u16 value);
+void sub_8110840(void *oldSave);
 
 extern u8 gUnknown_203ADFA;
 

include/save_failed_screen.h

@@ -0,0 +1,6 @@
+#ifndef GUARD_SAVE_FAILED_SCREEN_H
+#define GUARD_SAVE_FAILED_SCREEN_H
+
+extern void DoSaveFailedScreen(u8 saveType); // save_failed_screen
+
+#endif //GUARD_SAVE_FAILED_SCREEN_H