Issue #2460695 by mitrpaka, rpayanm: No methods on RendererInterface should be static

core/includes/common.inc

core/lib/Drupal/Core/Ajax/AjaxResponse.php

core/lib/Drupal/Core/Render/BubbleableMetadata.php

core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php

core/lib/Drupal/Core/Render/Renderer.php

core/lib/Drupal/Core/Render/RendererInterface.php

core/modules/comment/src/CommentPostRenderCache.php

...iews/tests/src/Unit/Controller/ViewAjaxControllerTest.php

core/tests/Drupal/Tests/Core/Controller/AjaxRendererTest.php