Stylistic changes.

libsolidity/CompilerUtils.cpp

@@ -35,6 +35,7 @@ void CompilerUtils::moveToStackVariable(VariableDeclaration const& _variable)
 {
 	unsigned const stackPosition = m_context.baseToCurrentStackOffset(m_context.getBaseStackOffsetOfVariable(_variable));
 	unsigned const size = _variable.getType()->getSizeOnStack();
+	// move variable starting from its top end in the stack
 	if (stackPosition - size + 1 > 16)
 		BOOST_THROW_EXCEPTION(CompilerError() << errinfo_sourceLocation(_variable.getLocation())
 											  << errinfo_comment("Stack too deep."));
@@ -42,7 +43,7 @@ void CompilerUtils::moveToStackVariable(VariableDeclaration const& _variable)
 		m_context << eth::swapInstruction(stackPosition - size + 1) << eth::Instruction::POP;
 }
 
-void CompilerUtils::copyToStackTop(unsigned _stackDepth, const Type& _type)
+void CompilerUtils::copyToStackTop(unsigned _stackDepth, Type const& _type)
 {
 	if (_stackDepth > 16)
 		BOOST_THROW_EXCEPTION(CompilerError() << errinfo_comment("Stack too deep."));