Fix all remaining PHPCS issues

Change-Id: I977a9f2efc5d95692341b17c6c2f41b7446d13e2

.phpcs.xml

@@ -1,10 +1,6 @@
 <?xml version="1.0"?>
 <ruleset>
-	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
-		<exclude name="MediaWiki.Commenting.FunctionComment.MissingDocumentationPrivate" />
-		<exclude name="MediaWiki.Commenting.FunctionComment.MissingParamTag" />
-		<exclude name="MediaWiki.Commenting.FunctionComment.ParamNameNoMatch" />
-	</rule>
+	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki" />
 	<file>.</file>
 	<arg name="extensions" value="php,php5,inc" />
 	<arg name="encoding" value="UTF-8" />

src/Cite.php

@@ -195,6 +195,12 @@ class Cite {
 			$this->validateRefInReferences( $text, $group, $name );
 	}
 
+	/**
+	 * @param ?string $text
+	 * @param ?string $name
+	 *
+	 * @return StatusValue
+	 */
 	private function validateRefOutsideOfReferences(
 		?string $text,
 		?string $name
@@ -235,6 +241,13 @@ class Cite {
 		return StatusValue::newGood();
 	}
 
+	/**
+	 * @param ?string $text
+	 * @param string $group
+	 * @param ?string $name
+	 *
+	 * @return StatusValue
+	 */
 	private function validateRefInReferences(
 		?string $text,
 		string $group,

src/ReferencesFormatter.php

@@ -228,6 +228,7 @@ class ReferencesFormatter {
 	}
 
 	/**
+	 * @param Parser $parser
 	 * @param string|int $key
 	 * @param ?string $text
 	 * @param bool $isSectionPreview