certain recursive type definitions are not allocated inline

[simeonschaub]

In this example, Julia does not realize that B can be allocated inline, which leads to B being boxed when used inside other types:

julia> struct A{T}
           x::Ptr{T}
       end

julia> struct B
           x::A{B}
       end

julia> B.name.flags
0x00

[JeffBezanson]

There happens to be a test_broken for just this case:

julia/test/core.jl

Line 7223 in ed4c44f

@test_broken isbitstype(B33954)