Ticket #35833: test-35833.php

<?php
/**
 * Plugin Name: Test 35833
 */

add_action( 'current_screen', 'xxx_test_table_in_help_tab' );
function xxx_test_table_in_help_tab() {
    $test_table_args = array(
        'id'       => 'test_help_table',
        'title'    => 'Something',
        'content'  => '<table class="widefat"><tr><td>Something</td></tr></table>',
    );
    get_current_screen()->add_help_tab( $test_table_args );
}