Make graphql.validation.interpolation.ResourceBundleMessageInterpolator.ValidationErrorType class public

[velias]

Please make graphql.validation.interpolation.ResourceBundleMessageInterpolator.ValidationErrorType class public.

I have a error handling code in my app which has to decide if an GraphQLError is client one or server. I do it based on list of known types obtained from GraphQLError#getErrorType(). But because this class is private, I can't add it to that list.

I think generally error types should be public so other code can use them.

Thanks a lot in advance.