private boolean isIdentifierMatch(ResourceShape resource, MemberShape member) {
        Map<String, ShapeId> identifiers = resource.getIdentifiers();
        return identifiers.containsKey(member.getMemberName())
                && identifiers.get(member.getMemberName()).equals(member.getTarget());
    }
Validates if a member matches a resource identifier without the
proper configuration of a `@references` trait.
smithy-model/src/main/java/software/amazon/smithy/model/validation/validators/MemberShouldReferenceResourceValidator.java