6 files declare their use of Heading
- CKEditor5.php in core/
modules/ ckeditor5/ src/ Plugin/ Editor/ CKEditor5.php - CKEditor5PluginManagerTest.php in core/
modules/ ckeditor5/ tests/ src/ Kernel/ CKEditor5PluginManagerTest.php - EditorResourceTestBase.php in core/
modules/ editor/ tests/ src/ Functional/ Rest/ EditorResourceTestBase.php - EditorTest.php in core/
modules/ jsonapi/ tests/ src/ Functional/ EditorTest.php - EditorValidationTest.php in core/
modules/ editor/ tests/ src/ Kernel/ EditorValidationTest.php - HeadingPluginTest.php in core/
modules/ ckeditor5/ tests/ src/ Unit/ HeadingPluginTest.php
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