Fix tests

test/mock/mock_IBattleInfoCallback.h

@@ -29,7 +29,7 @@ public:
 
 	MOCK_CONST_METHOD0(battleNextUnitId, uint32_t());
 
-	MOCK_CONST_METHOD1(battleGetUnitsIf, battle::Units(battle::UnitFilter));
+	MOCK_CONST_METHOD1(battleGetUnitsIf, battle::Units(const battle::UnitFilter &));
 
 	MOCK_CONST_METHOD1(battleGetUnitByID, const battle::Unit *(uint32_t));
 	MOCK_CONST_METHOD2(battleGetUnitByPos, const battle::Unit *(BattleHex, bool));

test/mock/mock_battle_IBattleState.h

@@ -17,8 +17,8 @@ class BattleStateMock : public IBattleState
 {
 public:
 	MOCK_CONST_METHOD0(getActiveStackID, int32_t());
-	MOCK_CONST_METHOD1(getStacksIf, TStacks(TStackFilter));
-	MOCK_CONST_METHOD1(getUnitsIf, battle::Units(battle::UnitFilter));
+	MOCK_CONST_METHOD1(getStacksIf, TStacks(const TStackFilter&));
+	MOCK_CONST_METHOD1(getUnitsIf, battle::Units(const battle::UnitFilter &));
 	MOCK_CONST_METHOD0(getBattlefieldType, BattleField());
 	MOCK_CONST_METHOD0(getTerrainType, TerrainId());
 	MOCK_CONST_METHOD0(getAllObstacles, IBattleInfo::ObstacleCList());