build: Add mediawiki/mediawiki-phan-config

Phan is a requirement to deploy extensions on wmf-production

Bug: T310367
Change-Id: Ic61c98ef72621a4f6e10cdf59e276ab13247857c

.phan/config.php

@@ -0,0 +1,3 @@
+<?php
+
+return require __DIR__ . '/../vendor/mediawiki/mediawiki-phan-config/src/config.php';

composer.json

@@ -1,6 +1,7 @@
 {
 	"require-dev": {
 		"mediawiki/mediawiki-codesniffer": "40.0.1",
+		"mediawiki/mediawiki-phan-config": "0.12.0",
 		"mediawiki/minus-x": "1.1.1",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",
 		"php-parallel-lint/php-parallel-lint": "1.3.2"
@@ -15,6 +16,7 @@
 			"minus-x fix .",
 			"phpcbf"
 		],
+		"phan": "phan -d . --long-progress-bar",
 		"phpcs": "phpcs -sp --cache"
 	}
 }

src/Hooks.php

@@ -5,8 +5,11 @@ namespace SearchVue;
 use MediaWiki\MediaWikiServices;
 use MediaWiki\Search\SearchWidgets\FullSearchResultWidget;
 use MediaWiki\SpecialPage\Hook\SpecialPageBeforeExecuteHook;
+use OutputPage;
 use SearchResultSet;
 use SpecialPage;
+use SpecialSearch;
+use User;
 
 /**
  * @license GPL-2.0-or-later