Fix various compatibility issues with PHP 8

libs/swiftmailer/dependency_maps/transport_deps.php

@@ -0,0 +1,76 @@
+<?php
+
+Swift_DependencyContainer::getInstance()
+    ->register('transport.smtp')
+    ->asNewInstanceOf('Swift_Transport_EsmtpTransport')
+    ->withDependencies(array(
+        'transport.buffer',
+        array('transport.authhandler'),
+        'transport.eventdispatcher',
+    ))
+
+    ->register('transport.sendmail')
+    ->asNewInstanceOf('Swift_Transport_SendmailTransport')
+    ->withDependencies(array(
+        'transport.buffer',
+        'transport.eventdispatcher',
+    ))
+
+    ->register('transport.mail')
+    ->asNewInstanceOf('Swift_Transport_MailTransport')
+    ->withDependencies(array('transport.mailinvoker', 'transport.eventdispatcher'))
+
+    ->register('transport.loadbalanced')
+    ->asNewInstanceOf('Swift_Transport_LoadBalancedTransport')
+
+    ->register('transport.failover')
+    ->asNewInstanceOf('Swift_Transport_FailoverTransport')
+
+    ->register('transport.spool')
+    ->asNewInstanceOf('Swift_Transport_SpoolTransport')
+    ->withDependencies(array('transport.eventdispatcher'))
+
+    ->register('transport.null')
+    ->asNewInstanceOf('Swift_Transport_NullTransport')
+    ->withDependencies(array('transport.eventdispatcher'))
+
+    ->register('transport.mailinvoker')
+    ->asSharedInstanceOf('Swift_Transport_SimpleMailInvoker')
+
+    ->register('transport.buffer')
+    ->asNewInstanceOf('Swift_Transport_StreamBuffer')
+    ->withDependencies(array('transport.replacementfactory'))
+
+    ->register('transport.authhandler')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_AuthHandler')
+    ->withDependencies(array(
+        array(
+            'transport.crammd5auth',
+            'transport.loginauth',
+            'transport.plainauth',
+            'transport.ntlmauth',
+            'transport.xoauth2auth',
+        ),
+    ))
+
+    ->register('transport.crammd5auth')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_Auth_CramMd5Authenticator')
+
+    ->register('transport.loginauth')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_Auth_LoginAuthenticator')
+
+    ->register('transport.plainauth')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_Auth_PlainAuthenticator')
+
+    ->register('transport.xoauth2auth')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_Auth_XOAuth2Authenticator')
+
+    ->register('transport.ntlmauth')
+    ->asNewInstanceOf('Swift_Transport_Esmtp_Auth_NTLMAuthenticator')
+
+    ->register('transport.eventdispatcher')
+    ->asNewInstanceOf('Swift_Events_SimpleEventDispatcher')
+
+    ->register('transport.replacementfactory')
+    ->asSharedInstanceOf('Swift_StreamFilters_StringReplacementFilterFactory')
+;