public override SyntaxNode VisitPropertyDeclaration(PropertyDeclarationSyntax propertySyntax)
{
var leadingTrivia = propertySyntax.Identifier.LeadingTrivia;
var trailingTriva = propertySyntax.Identifier.TrailingTrivia;
return propertySyntax.ReplaceToken(propertySyntax.Identifier,
SyntaxFactory.Identifier(leadingTrivia,
ToCamelCase(propertySyntax.Identifier.ValueText), trailingTriva) );
}