Issue #3508601 by quietone: Fix LongLineDeclaration in module tests

...tests/modules/big_pipe_test/src/BigPipeTestController.php

...ests/modules/field_test/src/Form/NestedEntityTestForm.php

...Plugin/Field/FieldFormatter/TestFieldDefaultFormatter.php

...lugin/Field/FieldFormatter/TestFieldMultipleFormatter.php

...in/Field/FieldFormatter/TestFieldPrepareViewFormatter.php

...odules/field_test/src/Plugin/Field/FieldType/TestItem.php

...eld_test/src/Plugin/Field/FieldWidget/TestFieldWidget.php

.../src/Plugin/Field/FieldWidget/TestFieldWidgetMultiple.php

...modules/help_topics_test/src/Hook/HelpTopicsTestHooks.php

...ts/modules/fixture_manipulator/src/FixtureManipulator.php

...ch_extra_type/src/Plugin/Search/SearchExtraTypeSearch.php

...es/system/tests/modules/ajax_forms_test/src/Callbacks.php

...modules/ajax_test/src/Form/AjaxTestMessageCommandForm.php

...ystem/tests/modules/batch_test/src/BatchTestCallbacks.php

...tity_reference_test/src/Hook/EntityReferenceTestHooks.php

...s/system/tests/modules/entity_test/src/EntityTestForm.php

...em/tests/modules/entity_test/src/Hook/EntityTestHooks.php

.../modules/system/tests/modules/form_test/src/Callbacks.php

...tests/modules/form_test/src/Form/FormTestValidateForm.php

...ssage_test/src/RenderPlaceholderMessageTestController.php