Prevent regressions in reference content

[jzaki]

At some point, reference docs stopped showing some methods (or perhaps never did?). Add tests to help auto-generation scripts create complete content and not regress.

[critesjosh]

@jzaki can we close this? We can re-open as a more specific, well-defined task if it comes up again

[jzaki]

@critesjosh We won't know if regressions have happened until we look, and given the recent macro metaprogramming language features, now might be a good time to resurface this.