internal static bool IsDotNetCoreAppHostFilename(string filename)
 {
     if (!File.Exists(filename))
     {
         return(false);
     }
     return
         (IsKnownDotNetCoreAppHost(filename) ||
          AppHostUtils.IsDotNetCoreAppHost(filename, out _) ||
          AppHostUtils.IsDotNetCoreBundle(filename));
 }