updated core to 8.6.3

core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php

@@ -200,7 +200,7 @@ class PhpArrayContainer extends Container {
         // The PhpArrayDumper just uses the hash of the private service
         // definition to generate a unique ID.
         //
-        // @see \Drupal\Component\DependecyInjection\Dumper\OptimizedPhpArrayDumper::getPrivateServiceCall
+        // @see \Drupal\Component\DependencyInjection\Dumper\OptimizedPhpArrayDumper::getPrivateServiceCall
         if ($type == 'private_service') {
           $id = $argument->id;
 

core/lib/Drupal/Component/Gettext/PoStreamReader.php

@@ -394,7 +394,7 @@ class PoStreamReader implements PoStreamInterface, PoReaderInterface {
             ($this->context != 'MSGCTXT') &&
             ($this->context != 'MSGID_PLURAL') &&
             ($this->context != 'MSGSTR_ARR')) {
-          // Plural message strings must come after msgid, msgxtxt,
+          // Plural message strings must come after msgid, msgctxt,
           // msgid_plural, or other msgstr[] entries.
           $this->errors[] = new FormattableMarkup('The translation stream %uri contains an error: "msgstr[]" is unexpected on line %line.', $log_vars);
           return FALSE;

core/lib/Drupal/Component/HttpFoundation/SecuredRedirectResponse.php

@@ -36,7 +36,7 @@ abstract class SecuredRedirectResponse extends RedirectResponse {
    * Copies over the values from the given response.
    *
    * @param \Symfony\Component\HttpFoundation\RedirectResponse $response
-   *   The redirect reponse object.
+   *   The redirect response object.
    */
   protected function fromResponse(RedirectResponse $response) {
     $this->setProtocolVersion($response->getProtocolVersion());

core/lib/Drupal/Component/Plugin/PluginManagerBase.php

@@ -29,7 +29,7 @@ abstract class PluginManagerBase implements PluginManagerInterface {
   /**
    * The object that returns the preconfigured plugin instance appropriate for a particular runtime condition.
    *
-   * @var \Drupal\Component\Plugin\Mapper\MapperInterface
+   * @var \Drupal\Component\Plugin\Mapper\MapperInterface|null
    */
   protected $mapper;
 
@@ -104,6 +104,9 @@ abstract class PluginManagerBase implements PluginManagerInterface {
    * {@inheritdoc}
    */
   public function getInstance(array $options) {
+    if (!$this->mapper) {
+      throw new \BadMethodCallException(sprintf('%s does not support this method unless %s::$mapper is set.', static::class, static::class));
+    }
     return $this->mapper->getInstance($options);
   }