7 files declare their use of FieldUiJSTestTrait

DefaultValueWidgetTest.php in core/modules/field_ui/tests/src/FunctionalJavascript/DefaultValueWidgetTest.php
EntityReferenceAdminTest.php in core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php
ManageDisplayTest.php in core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php
ManageFieldsTest.php in core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php
OptionsFieldUIAllowedValuesTest.php in core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUIAllowedValuesTest.php
OptionsFieldUITest.php in core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUITest.php
ResponsiveImageFieldUiTest.php in core/modules/responsive_image/tests/src/FunctionalJavascript/ResponsiveImageFieldUiTest.php

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