I have a client who prefers some links to have the » symbol at the end. This is typically produced with the » HTML character entity.
In Drupal 7, you would do something like this:
l('Go there »', 'node/1', array('html' => TRUE));
But how do you do it in Drupal 8? The following won't work because of new sanitization rules:
$node->toLink('Go there »', 'canonical', ['html' => TRUE]);
They want the raquo in the link, not as a suffix.