unsafeCoerce#

Hi,

Finding unsafeCoerce# in the documentation is challenging at best.
It's not indexed by Haddock, which in turn means its not indexed by
Hoogle. Lambdabot doesn't find it. Googling gave me GhcExts (from an
old Happy file), which I guessed at GHC.Exts.

Someone in #haskell suggested GHC.Base. I'm not sure where I should
import it from, but it would be nice if the docs included it
somewhere.

Thanks

Neil