Update to Drupal 8.0.0-beta15. For more information, see: https://www.drupal.org/node/2563023

core/modules/migrate/src/MigrateSkipRowException.php

@@ -12,4 +12,35 @@ namespace Drupal\migrate;
  */
 class MigrateSkipRowException extends \Exception {
 
+  /**
+   * Whether to record the skip in the map table, or skip silently.
+   *
+   * @var bool
+   *   TRUE to record as STATUS_IGNORED in the map, FALSE to skip silently.
+   */
+  protected $saveToMap;
+
+  /**
+   * Constructs a MigrateSkipRowException object.
+   *
+   * @param string $message
+   *   The message for the exception.
+   * @param bool $save_to_map
+   *   TRUE to record as STATUS_IGNORED in the map, FALSE to skip silently.
+   */
+  public function __construct($message = NULL, $save_to_map = TRUE) {
+    parent::__construct($message);
+    $this->saveToMap = $save_to_map;
+  }
+
+  /**
+   * Whether the thrower wants to record this skip in the map table.
+   *
+   * @return bool
+   *   TRUE to record as STATUS_IGNORED in the map, FALSE to skip silently.
+   */
+  public function getSaveToMap() {
+    return $this->saveToMap;
+  }
+
 }