28 files declare their use of MarkupInterface in Zircon Profile 8

AssertHelperTrait.php in core/modules/simpletest/src/AssertHelperTrait.php

Contains \Drupal\simpletest\AssertHelperTrait.

Attribute.php in core/lib/Drupal/Core/Template/Attribute.php

Contains \Drupal\Core\Template\Attribute.

AttributeTest.php in core/tests/Drupal/Tests/Core/Template/AttributeTest.php

Contains \Drupal\Tests\Core\Template\AttributeTest.

ConfigBase.php in core/lib/Drupal/Core/Config/ConfigBase.php

Contains \Drupal\Core\Config\ConfigBase.

DrupalTranslator.php in core/lib/Drupal/Core/Validation/DrupalTranslator.php

Contains \Drupal\Core\Validation\DrupalTranslator.

FieldApiDataTest.php in core/modules/views/src/Tests/FieldApiDataTest.php

Contains \Drupal\views\Tests\FieldApiDataTest.

FieldFilteredMarkup.php in core/lib/Drupal/Core/Field/FieldFilteredMarkup.php

Contains \Drupal\Core\Field\FieldFilteredMarkup.

FieldFilteredMarkupTest.php in core/tests/Drupal/Tests/Core/Field/FieldFilteredMarkupTest.php

Contains \Drupal\Tests\Core\Field\FieldFilteredMarkupTest.

FieldPluginBase.php in core/modules/views/src/Plugin/views/field/FieldPluginBase.php

Contains \Drupal\views\Plugin\views\field\FieldPluginBase.

FilteredMarkup.php in core/modules/filter/src/Render/FilteredMarkup.php

Contains \Drupal\filter\Render\FilteredMarkup.

GeneratedLink.php in core/lib/Drupal/Core/GeneratedLink.php

Contains \Drupal\Core\GeneratedLink.

HtmlEscapedTextTest.php in core/tests/Drupal/Tests/Component/Render/HtmlEscapedTextTest.php

Contains \Drupal\Tests\Component\Render\HtmlEscapedTextTest.

LinkGenerator.php in core/lib/Drupal/Core/Utility/LinkGenerator.php

Contains \Drupal\Core\Utility\LinkGenerator.

LinkGeneratorTest.php in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Contains \Drupal\Tests\Core\Utility\LinkGeneratorTest.

Markup.php in core/lib/Drupal/Core/Render/Markup.php

Contains \Drupal\Core\Render\Markup.

PlainTextOutputTest.php in core/tests/Drupal/Tests/Component/Render/PlainTextOutputTest.php

Contains \Drupal\Tests\Component\Render\PlainTextOutputTest.

PrimitiveTypeConstraintValidator.php in core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/PrimitiveTypeConstraintValidator.php

Contains \Drupal\Core\Validation\Plugin\Validation\Constraint\PrimitiveTypeConstraintValidator.

SafeMarkup.php in core/lib/Drupal/Component/Utility/SafeMarkup.php

Contains \Drupal\Component\Utility\SafeMarkup.

SafeMarkupTest.php in core/tests/Drupal/Tests/Component/Utility/SafeMarkupTest.php

Contains \Drupal\Tests\Component\Utility\SafeMarkupTest.

TestBase.php in core/modules/simpletest/src/TestBase.php

Contains \Drupal\simpletest\TestBase.

theme.inc in core/includes/theme.inc

The theme system, which controls the output of Drupal.

ThemeManager.php in core/lib/Drupal/Core/Theme/ThemeManager.php

Contains \Drupal\Core\Theme\ThemeManager.

ThemeTest.php in core/modules/system/src/Tests/Theme/ThemeTest.php

Contains \Drupal\system\Tests\Theme\ThemeTest.

Token.php in core/lib/Drupal/Core/Utility/Token.php

Contains \Drupal\Core\Utility\Token.

TranslationManagerTest.php in core/tests/Drupal/Tests/Core/StringTranslation/TranslationManagerTest.php

Contains \Drupal\Tests\Core\StringTranslation\TranslationManagerTest.

TwigExtension.php in core/lib/Drupal/Core/Template/TwigExtension.php

Contains \Drupal\Core\Template\TwigExtension.

TwigMarkupInterfaceTest.php in core/tests/Drupal/KernelTests/Core/Theme/TwigMarkupInterfaceTest.php

Contains \Drupal\KernelTests\Core\Theme\ThemeRenderAndAutoescapeTest.

ViewsRenderPipelineMarkup.php in core/modules/views/src/Render/ViewsRenderPipelineMarkup.php

Contains \Drupal\views\Render\ViewsRenderPipelineMarkup.