eigvaljpdf not running?

[petertuuk]

It seems like this code is stale (though maybe my use of it is incorrect). I can't get
eigvaljpdf(d::GaussianLaguerre, lambda::Vector{Eigenvalue})
to run in v0.6.2. I'm happy to help update the code but want to make sure I know the intent.
A few questions:
Is z < 0 && (int(z) - z) < eps() on line 200 equivalent to z < 0 && z > -eps() ?
Should the betas on line 204 be d.betas?