Drop universal initializer in some places

test/vm.cpp

@@ -61,7 +61,7 @@ h160 FakeExtVM::create(u256 _endowment, u256* _gas, bytesConstRef _init, OnOpFun
 	return ret;
 }
 
-bool FakeExtVM::call(Address _receiveAddress, u256 _value, bytesConstRef _data, u256* _gas, bytesRef _out, OnOpFunc const&, Address _myAddressOverride = Address(), Address _codeAddressOverride = Address())
+bool FakeExtVM::call(Address _receiveAddress, u256 _value, bytesConstRef _data, u256* _gas, bytesRef _out, OnOpFunc const&, Address _myAddressOverride, Address _codeAddressOverride)
 {
 
 	u256 contractgas = 0xffff;

test/vm.h

@@ -44,7 +44,7 @@ class FakeState: public eth::State
 {
 public:
 	/// Execute a contract-creation transaction.
-	h160 createNewAddress(Address _newAddress, Address _txSender, u256 _endowment, u256 _gasPrice, u256* _gas, bytesConstRef _code, Address _originAddress = Address(), std::set<Address>* o_suicides = nullptr, eth::Manifest* o_ms = nullptr, eth::OnOpFunc const& _onOp = eth::OnOpFunc(), unsigned _level = 0);
+	h160 createNewAddress(Address _newAddress, Address _txSender, u256 _endowment, u256 _gasPrice, u256* _gas, bytesConstRef _code, Address _originAddress = {}, std::set<Address>* o_suicides = nullptr, eth::Manifest* o_ms = nullptr, eth::OnOpFunc const& _onOp = {}, unsigned _level = 0);
 };
 
 class FakeExtVM: public eth::ExtVMFace