8 files declare their use of VerificationResult in Commerce Core 8.2

EuropeanUnionVatTest.php in modules/tax/tests/src/Kernel/Plugin/Commerce/TaxNumberType/EuropeanUnionVatTest.php

SerbianVat.php in modules/tax/tests/modules/commerce_tax_test/src/Plugin/Commerce/TaxNumberType/SerbianVat.php

TaxNumberController.php in modules/tax/src/Controller/TaxNumberController.php

TaxNumberDefaultFormatter.php in modules/tax/src/Plugin/Field/FieldFormatter/TaxNumberDefaultFormatter.php

TaxNumberItem.php in modules/tax/src/Plugin/Field/FieldType/TaxNumberItem.php

TaxNumberItemInterface.php in modules/tax/src/Plugin/Field/FieldType/TaxNumberItemInterface.php

TaxNumberItemTest.php in modules/tax/tests/src/Kernel/TaxNumberItemTest.php

TaxNumberTest.php in modules/tax/tests/src/FunctionalJavascript/TaxNumberTest.php