EclipseGc

<?php

namespace Drupal\layout\Plugin\block\block;

use Drupal\block\BlockBase;
use Drupal\Core\Annotation\Plugin;
use Drupal\Core\Annotation\Translation;

/**
 * @Plugin(

EclipseGc

/**
 * Implements hook_block_alter().
 */
function bartik_block_alter(&$definitions) {
  $definitions['page_primary_links']['class'] = 'Drupal\\bartik\\blocks\\PrimaryLinks';
  $definitions['page_secondary_links']['class'] = 'Drupal\\bartik\\blocks\\SecondaryLinks';
}

EclipseGc

<?php

namespace Drupal\bartik\blocks;

use Drupal\layout\Plugin\block\block\PagePrimaryLinks;

class PrimaryLinks extends PagePrimaryLinks {

  /**
   * Implements BlockInterface::build().