JuliaLang/julia — pull request #1247 by carlobaldassi (2012-09-02 11:07:33+00:00)
Title: Fix show of CompositeKind undef fields

before this patch:

```
julia> type X
x
X() = new()
end

julia> X()
Segmentation fault (core dumped)
```

after:

```
julia> X()
X(#undef)
```

I'm submitting a pull request instead of pushing directly for style review.