Build/Test Tools: Fix and standardise calls to the tearDown() method in the test suite.

The parent method should be called after any test-specific teardown.

See #52625


git-svn-id: https://develop.svn.wordpress.org/trunk@50450 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/multisite.php

@@ -18,8 +18,8 @@ if ( is_multisite() ) :
 
 		function tearDown() {
 			global $wpdb;
-			parent::tearDown();
 			$wpdb->suppress_errors( $this->suppress );
+			parent::tearDown();
 		}
 
 		function test_wpmu_log_new_registrations() {