purescript 0.6.1.2

PureScript is a small strongly typed programming language that compiles to JavaScript.

See also:

  - http://www.reddit.com/r/purescript
  - http://www.purescript.org/
  - http://try.purescript.org/
Change this to:
```ruby
fails_with :clang do
  cause "the reason this fails"
end
```
Also, can you report this upstream and add the upstream submission as a Ruby comment. Would be good to try and get this fixed as Clang is the default compiler on OSX.