Single bytes argument.

In 0.5.0 mode, only accept a single bytes argument for ``.call``,
``keccak256`` and others and do not pad when encoding.

libsolidity/ast/Types.h

@@ -1058,18 +1058,20 @@ public:
 	ASTPointer<ASTString> documentation() const;
 
 	/// true iff arguments are to be padded to multiples of 32 bytes for external calls
+	/// TODO should this be true in general for bareCall*?
 	bool padArguments() const { return !(m_kind == Kind::SHA3 || m_kind == Kind::SHA256 || m_kind == Kind::RIPEMD160 || m_kind == Kind::ABIEncodePacked); }
 	bool takesArbitraryParameters() const { return m_arbitraryParameters; }
 	/// true iff the function takes a single bytes parameter and it is passed on without padding.
-	/// @todo until 0.5.0, this is just a "recommendation".
 	bool takesSinglePackedBytesParameter() const
 	{
-		// @todo add the call kinds here with 0.5.0 and perhaps also log0.
 		switch (m_kind)
 		{
 		case FunctionType::Kind::SHA3:
 		case FunctionType::Kind::SHA256:
 		case FunctionType::Kind::RIPEMD160:
+		case FunctionType::Kind::BareCall:
+		case FunctionType::Kind::BareCallCode:
+		case FunctionType::Kind::BareDelegateCall:
 			return true;
 		default:
 			return false;