Formatting: Add additional support for single and nestable tags in force_balance_tags().

Adds `track` and `wbr` support for single tags.

Adds `article`, `aside`, `details`, `figure`, and `section` for nestable tags.

Updates tests.

Follow-up to [5805], [21828], [45929].

Props glendaviesnz, costdev, talldanwp, ramonopoly, sergeybiryukov.
Fixes #50225.

git-svn-id: https://develop.svn.wordpress.org/trunk@52188 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/formatting/balanceTags.php

@@ -7,10 +7,15 @@ class Tests_Formatting_BalanceTags extends WP_UnitTestCase {
 
 	public function nestable_tags() {
 		return array(
+			array( 'article' ),
+			array( 'aside' ),
 			array( 'blockquote' ),
+			array( 'details' ),
 			array( 'div' ),
+			array( 'figure' ),
 			array( 'object' ),
 			array( 'q' ),
+			array( 'section' ),
 			array( 'span' ),
 		);
 	}
@@ -34,6 +39,8 @@ class Tests_Formatting_BalanceTags extends WP_UnitTestCase {
 			array( 'meta' ),
 			array( 'param' ),
 			array( 'source' ),
+			array( 'track' ),
+			array( 'wbr' ),
 		);
 	}