RFC: updates for changes to Julia

[timholy]

This doesn't work yet, but it goes part of the way towards updating Debug against recent Julia.

I'm a bit stumped by this one, however:

julia> using Debug
ERROR: Ex not defined
 in include_from_node1 at loading.jl:76
 in reload_path at loading.jl:96
 in require at loading.jl:48
 in include_from_node1 at loading.jl:76
 in reload_path at loading.jl:96
 in require at loading.jl:48
at /home/tim/.julia/Debug/src/Analysis.jl:15
at /home/tim/.julia/Debug/src/Debug.jl:7

julia> Meta.Ex
Union(Expr,Node{ExValue})

julia> Ex
ERROR: Ex not defined

julia> using Meta

julia> Ex
Union(Expr,Node{ExValue})

Seems odd given that Analysis is saying using Meta. I'm wondering if it's a Julia bug?

[kmsquire]

In addition to Meta.jl in the Debug package, there's now a base/meta.jl, which defines module Meta (and both are by Toivoh). I haven't looked closely, and have to run, but I'm betting the conflict is there.

[toivoh]

Thanks for pointing this out! Should be fixed now.

[toivoh]

@timholy: It does seem like a Julia bug. I've filed an issue: JuliaLang/julia#2375.