Issue #1831350 by chx, sun: Break the circular dependency between bootstrap container and kernel.

core/includes/common.inc

core/includes/install.core.inc

core/includes/module.inc

core/lib/Drupal/Core/DrupalKernel.php

core/lib/Drupal/Core/DrupalKernelInterface.php

core/lib/Drupal/Core/SystemListing.php

core/lib/Drupal/Core/SystemListingInfo.php

core/modules/simpletest/lib/Drupal/simpletest/TestBase.php

...lib/Drupal/system/Tests/DrupalKernel/DrupalKernelTest.php

core/modules/system/tests/http.php

core/modules/system/tests/https.php

index.php