function based syntax for meta and constraints macros parses but does produce weird errors when applied

[bvdmitri]

The old version supported the following syntax

@constraints function constraints_mv_iid_wishart()
    q(m, P) = q(m)q(P)
end

both for @meta and @constraints. The new implementation should support these as well.

[bvdmitri]

E.g. we were be able to write this

@constraints function constraints_with_condition(condition)
    if condition
        q(m, P) = q(m)q(P)
    end
end