Add phan

Change-Id: I2215aa3ec232874ddb680f1f40607f89f9282aea

.phan/config.php

@@ -0,0 +1,25 @@
+<?php
+$cfg = require __DIR__ . '/../vendor/mediawiki/mediawiki-phan-config/src/config.php';
+
+$cfg['directory_list'] = array_merge(
+	$cfg['directory_list'],
+	[
+		'data',
+		'../../extensions/BetaFeatures',
+		'../../extensions/Babel',
+		'../../extensions/MobileFrontend',
+		'../../extensions/cldr',
+	]
+);
+
+$cfg['exclude_analysis_directory_list'] = array_merge(
+	$cfg['exclude_analysis_directory_list'],
+	[
+		'../../extensions/BetaFeatures',
+		'../../extensions/Babel',
+		'../../extensions/MobileFrontend',
+		'../../extensions/cldr',
+	]
+);
+
+return $cfg;

composer.json

@@ -28,7 +28,8 @@
 		"jakub-onderka/php-parallel-lint": "1.0.0",
 		"mediawiki/mediawiki-codesniffer": "24.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
-		"mediawiki/minus-x": "0.3.1"
+		"mediawiki/minus-x": "0.3.1",
+		"mediawiki/mediawiki-phan-config": "0.5.0"
 	},
 	"scripts": {
 		"fix": [