Keyword foreign

Could some add to the user guide at: http://www.haskell.org/ghc/docs/latest/html/users_guide/ghc-language-feature... that -ffi and -fffi is (currently) implied by -fglasgow-exts? (as stated in the flag reference) in the same way as it is stated under -fimplicit-params or -fth in section 7.1. Language options? Therefore the keyword "foreign" gets into scope by -fglasgow-exts. And maybe this word and others should be added to http://haskell.org/haskellwiki/Keywords, because "forall" is listed and only available with -fglasgow-exts? Christian