language package:ghc

The language extensions implied by the various language variants. When updating this be sure to update the flag documentation in docsusers_guideexts.
The default Language is used if one is not specified explicitly, by both GHC and GHCi.
Foreign language of the phase if the phase deals with a foreign code
Is the Safe Haskell safe language in use
The Language used in the module, for example Haskell2010.