kazu-yamamoto/ghc-mod — pull request #306 by DanielG (2014-08-11 22:06:45+00:00)
Title: Don't fall back to sandbox if cabal file failes to parse

I already mentioned this in #292.

I'm not sure why the fallback to `withSandbox` when a cabal file is present was there in the first place but it seems wrong to me anyways so I just removed it. @kazu-yamamoto unless you can think of some reason for this?