Tests: Add an xdebug group for tests that require xdebug.

These tests are now also run as their own part of the Travis build, to ensure performance of other tests isn't affected by the presence of xdebug.

Fixes #40532.



git-svn-id: https://develop.svn.wordpress.org/trunk@45827 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/ajax/Response.php

@@ -69,6 +69,7 @@ class Tests_Ajax_Response extends WP_UnitTestCase {
 	 * @ticket 19448
 	 * @runInSeparateProcess
 	 * @preserveGlobalState disabled
+	 * @group xdebug
 	 */
 	public function test_response_charset_in_header() {
 

tests/phpunit/tests/oembed/headers.php

@@ -5,6 +5,7 @@
  * @preserveGlobalState disabled
  * @group oembed
  * @group oembed-headers
+ * @group xdebug
  */
 class Tests_oEmbed_HTTP_Headers extends WP_UnitTestCase {
 	function test_rest_pre_serve_request_headers() {