Make sure that unnamed schemas are referenced

[pcapriotti]

This changes the Swagger implementation of unnamed in schema-profunctor to drop the name, but still declare the corresponding named schema. Now even unnamed schemas that are not actually referenced anywhere will appear in the list of schemas in Swagger.

Also changed the name of the schema for SimpleMember to make it reflect the Haskell type name.

Thanks @atomrc for reporting this issue.

Checklist

• The PR Title explains the impact of the change.
• The PR description provides context as to why the change should occur and what the code contributes to that effect. This could also be a link to a JIRA ticket or a Github issue, if there is one.
• changelog.d contains the following bits of information:
  • A file with the changelog entry in one or more suitable sub-sections. The sub-sections are marked by directories inside changelog.d.

[jschaul]

Looks good. I didn't try this out, but does this change still pass the online swagger validation tool when unreferenced things are present?

[pcapriotti]

It does not, but nor did before. I'll fix it in another PR, if that's ok. We should also think about incorporating this check in the tests, because it's hard to remember to do it, and many possible things affect Swagger.

[jschaul]

It does not, but nor did before. I'll fix it in another PR, if that's ok. We should also think about incorporating this check in the tests, because it's hard to remember to do it, and many possible things affect Swagger.

Sure, that's fine. Yes about adding tests. Can we download a validation library and make it part of the tooling? (I wouldn't want to rely on the uptime of online testing websites in integration tests).