Style and some assertion messages.

libsolidity/CompilerUtils.cpp

@@ -481,7 +481,7 @@ void CompilerUtils::convertType(Type const& _typeOnStack, Type const& _targetTyp
 			}
 			break;
 		case DataLocation::CallData:
-			solAssert(false, "");
+			solAssert(false, "Invalid type conversion target location CallData.");
 			break;
 		}
 		break;

libsolidity/ExpressionCompiler.cpp

@@ -324,7 +324,7 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
 	FunctionTypePointer functionType;
 	if (_functionCall.isStructConstructorCall())
 	{
-		TypeType const& type = dynamic_cast<TypeType const&>(*_functionCall.getExpression().getType());
+		auto const& type = dynamic_cast<TypeType const&>(*_functionCall.getExpression().getType());
 		auto const& structType = dynamic_cast<StructType const&>(*type.getActualType());
 		functionType = structType.constructorType();
 	}

libsolidity/LValue.cpp

@@ -294,7 +294,7 @@ void StorageItem::storeValue(Type const& _sourceType, SourceLocation const& _loc
 			else if (sourceType.getSizeOnStack() >= 1)
 			{
 				// remove the source ref
-				solAssert(sourceStackSize <= 2, "");
+				solAssert(sourceStackSize <= 2, "Invalid stack size.");
 				m_context << eth::swapInstruction(sourceStackSize);
 				if (sourceStackSize == 2)
 					m_context << eth::Instruction::POP;

libsolidity/Types.cpp

@@ -1020,14 +1020,11 @@ bool StructType::canLiveOutsideStorage() const
 
 unsigned StructType::getSizeOnStack() const
 {
-	switch (location())
-	{
-	case DataLocation::Storage:
+	if (location() == DataLocation::Storage)
 		return 2; // slot and offset
-	default:
+	else
 		return 1;
 }
-}
 
 string StructType::toString(bool _short) const
 {