Added more typehints

Author: TavoNiievez

src/Codeception/Exception/ExternalUrlException.php

@@ -1,7 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Codeception\Exception;
 
-class ExternalUrlException extends \Exception
+use Exception;
+
+class ExternalUrlException extends Exception
 {
 }

src/Codeception/Lib/Framework.php

@@ -1,21 +1,20 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Codeception\Lib;
 
 /**
  * Abstract module for PHP frameworks connected via Symfony BrowserKit components
  * Each framework is connected with it's own connector defined in \Codeception\Lib\Connector
  * Each module for framework should extend this class.
- *
  */
 abstract class Framework extends InnerBrowser
 {
     /**
      * Returns a list of recognized domain names
-     *
-     * @return array
      */
-    protected function getInternalDomains()
+    protected function getInternalDomains(): array
     {
         return [];
     }