20 files declare their use of FieldValidationRuleSetInterface in Field Validation 8

BlacklistFieldValidationRule.php in src/Plugin/FieldValidationRule/BlacklistFieldValidationRule.php

DateRangeFieldValidationRule.php in src/Plugin/FieldValidationRule/DateRangeFieldValidationRule.php

EmailFieldValidationRule.php in src/Plugin/FieldValidationRule/EmailFieldValidationRule.php

FieldValidationRuleAddForm.php in src/Form/FieldValidationRuleAddForm.php

FieldValidationRuleDeleteForm.php in src/Form/FieldValidationRuleDeleteForm.php

FieldValidationRuleEditForm.php in src/Form/FieldValidationRuleEditForm.php

FieldValidationRuleFormBase.php in src/Form/FieldValidationRuleFormBase.php

FieldValidationRuleInterface.php in src/FieldValidationRuleInterface.php

FieldValidationRuleSet.php in src/Entity/FieldValidationRuleSet.php

IntegerFieldValidationRule.php in src/Plugin/FieldValidationRule/IntegerFieldValidationRule.php

IpFieldValidationRule.php in src/Plugin/FieldValidationRule/IpFieldValidationRule.php

LengthFieldValidationRule.php in src/Plugin/FieldValidationRule/LengthFieldValidationRule.php

MustBeEmptyFieldValidationRule.php in src/Plugin/FieldValidationRule/MustBeEmptyFieldValidationRule.php

NumericFieldValidationRule.php in src/Plugin/FieldValidationRule/NumericFieldValidationRule.php

OneOfSeveralValidationRule.php in src/Plugin/FieldValidationRule/OneOfSeveralValidationRule.php

PhoneFieldValidationRule.php in src/Plugin/FieldValidationRule/PhoneFieldValidationRule.php

PlainTextFieldValidationRule.php in src/Plugin/FieldValidationRule/PlainTextFieldValidationRule.php

RegexFieldValidationRule.php in src/Plugin/FieldValidationRule/RegexFieldValidationRule.php

UniqueFieldValidationRule.php in src/Plugin/FieldValidationRule/UniqueFieldValidationRule.php

WordsFieldValidationRule.php in src/Plugin/FieldValidationRule/WordsFieldValidationRule.php