Implements \Drupal\Core\Path\AliasManagerInterface::getPathAlias().
Overrides AliasManagerInterface::getPathAlias
public function getPathAlias($path, $path_language = NULL) {
$language = $path_language ?: $this->defaultLanguage;
$this->lookedUp[$path] = 1;
return $this->aliases[$path][$language];
}