Tests: Add missing parent::setUp() calls to all test classes.

Props johnbillion, birgire.
Fixes #37375.



git-svn-id: https://develop.svn.wordpress.org/trunk@44577 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/admin/includesScreen.php

@@ -126,6 +126,7 @@ class Tests_Admin_includesScreen extends WP_UnitTestCase {
 
 	function setUp() {
 		set_current_screen( 'front' );
+		parent::setUp();
 	}
 
 	function tearDown() {