Adding Squiz.PHP.CommentedOutCode sniff to the ruleset

This commit also contains related changes to the integration tests

Author: david-binda

WordPressVIPMinimum/ruleset.xml

@@ -29,6 +29,7 @@
 		<include-pattern>*.php</include-pattern>
 		<include-pattern>*.inc</include-pattern>
 	</rule>
+	<rule ref="Squiz.PHP.CommentedOutCode"/>
 
 	<!-- https://vip.wordpress.com/documentation/vip/code-review-what-we-look-for/#eval-and-create_function -->
 	<rule ref="Squiz.PHP.Eval"/>

ruleset_test.inc

@@ -161,5 +161,7 @@ if ( $a = 1 ) {} // Bad. Warning.
 
 add_option( 'taxonomy_rating_' . $obj->term_id ); // Bad. Warning.
 
+//wpcom_vip_load_plugin( 'disqus' ); // Bad. Warning.
+
 ?>
 

ruleset_test.php

@@ -48,7 +48,7 @@
 		131 => 1,
 		133 => 1,
 		157 => 1,
-		164 => 1, // Error on the end of the file. When any code is added, bounce this.
+		166 => 1, // Error on the end of the file. When any code is added, bounce this.
 	),
 	'warnings' => array(
 		9   => 1,
@@ -71,6 +71,7 @@
 		155 => 1,
 		160 => 1,
 		162 => 1,
+		164 => 1,
 	),
 	'messages' => array(
 		129 => array(