Fix AI Guard Spec use, and Specs->Spec

src/battle_ai_switch_items.c

@@ -789,7 +789,7 @@ static u8 GetAI_ItemType(u8 itemId, const u8 *itemEffect) // NOTE: should take u
     else if (itemEffect[0] & (ITEM0_DIRE_HIT | ITEM0_X_ATTACK) || itemEffect[1] != 0 || itemEffect[2] != 0)
         return AI_ITEM_X_STAT;
     else if (itemEffect[3] & ITEM3_GUARD_SPEC)
-        return AI_ITEM_GUARD_SPECS;
+        return AI_ITEM_GUARD_SPEC;
     else
         return AI_ITEM_NOT_RECOGNIZABLE;
 }
@@ -911,7 +911,7 @@ static bool8 ShouldUseItem(void)
                 *(gBattleStruct->AI_itemFlags + gActiveBattler / 2) |= (1 << AI_DIRE_HIT);
             shouldUse = TRUE;
             break;
-        case AI_ITEM_GUARD_SPECS:
+        case AI_ITEM_GUARD_SPEC:
             battlerSide = GetBattlerSide(gActiveBattler);
             if (gDisableStructs[gActiveBattler].isFirstTurn != 0 && gSideTimers[battlerSide].mistTimer == 0)
                 shouldUse = TRUE;