phan: Load AbuseFilter in phan config

See I76e8ce9c1533ca8ad47abb1ffd2e683cc85b78aa for CI config change

Change-Id: Iecea4af54b972637fb2c4c2ce234708f8eb4e4b9

.phan/config.php

@@ -10,6 +10,14 @@ $cfg['directory_list'] = array_merge(
 		'QuestyCaptcha/',
 		'ReCaptchaNoCaptcha/',
 		'SimpleCaptcha/',
+		'../../extensions/AbuseFilter',
+	]
+);
+
+$cfg['exclude_analysis_directory_list'] = array_merge(
+	$cfg['exclude_analysis_directory_list'],
+	[
+		'../../extensions/AbuseFilter',
 	]
 );