No exception thrown when entity cannot be wrapped

Before this change trying to wrap an entity that did not have a suitable wrapper would lead to a RepositoryNotFound exception. Now it will return NULL.

Consider this example in 2.x:

function physical_media_node_access($node, $op, $account) {
  try {
    $wrapped_node = \Drupal::service(RepositoryManager::class)->wrap($node);
  }
  catch (RepositoryNotFoundException $exception) {
    return AccessResult::neutral();
  }
  return $wrapped_node instanceof AccessibleInterface
    ? $wrapped_node->access($op, $account, TRUE)
    : AccessResult::neutral();
}

In this example we want node types that have no associated wrapper to return access neutral. In 3.x the code should look like:

function physical_media_node_access($node, $op, $account) {
  $wrapped_node = typed_entity_repository_manager()->wrap($node);
  return $wrapped_node instanceof AccessibleInterface
    ? $wrapped_node->access($op, $account, TRUE)
    : AccessResult::neutral();
}