Fix deprecated

Author: rrousselGit

packages/freezed/test/decorator_test.dart

@@ -97,20 +97,20 @@ void main() {
       errorResult.errors.map((e) => e.errorCode.name),
       anyOf([
         [
-          'UNUSED_RESULT',
-          'UNUSED_RESULT',
-          'DEPRECATED_MEMBER_USE_FROM_SAME_PACKAGE',
-          'DEPRECATED_MEMBER_USE_FROM_SAME_PACKAGE',
-          'DEPRECATED_MEMBER_USE_FROM_SAME_PACKAGE',
-          'DEPRECATED_MEMBER_USE_FROM_SAME_PACKAGE',
+          'unused_result',
+          'unused_result',
+          'deprecated_member_use_from_same_package',
+          'deprecated_member_use_from_same_package',
+          'deprecated_member_use_from_same_package',
+          'deprecated_member_use_from_same_package',
         ],
         [
-          'UNUSED_RESULT',
-          'UNUSED_RESULT',
-          'DEPRECATED_MEMBER_USE',
-          'DEPRECATED_MEMBER_USE',
-          'DEPRECATED_MEMBER_USE',
-          'DEPRECATED_MEMBER_USE',
+          'unused_result',
+          'unused_result',
+          'deprecated_member_use',
+          'deprecated_member_use',
+          'deprecated_member_use',
+          'deprecated_member_use',
         ],
       ]),
     );