Maxwe11

internal static bool IsFirstInLine_1(this SyntaxToken token)
{
    return token.HasLeadingTrivia || token.GetLocation()?.GetMappedLineSpan().StartLinePosition.Character == 0;
}

internal static bool IsFirstInLine_2(this SyntaxToken token)
{
    var prevToken = token.GetPreviousToken();
    var leadingTriviaList = prevToken.TrailingTrivia.AddRange(token.LeadingTrivia);

Maxwe11

using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Threading.Tasks;

public class Program
{
    public static void Main(string[] args)
    {