public override List <SolutionStyleError> FindErrors(SyntaxTree userSolution, SemanticModel semanticModel)
{
var bracesPairs = userSolution.BuildBracesPairs().ToArray();
return(bracesPairs
.Select(ReportWhenExistExcessLineBetweenDeclaration)
.Concat(bracesPairs.SelectMany(ReportWhenExistExcessLineBetweenBraces))
.Concat(bracesPairs.Select(ReportWhenNotExistLineBetweenBlocks))
.Where(x => x != null)
.OrderBy(e => e.Span.StartLinePosition.Line)
.ToList());
}