| Opt_RecordPuns
| Opt_GADTs
| Opt_RelaxedPolyRec -- -X=RelaxedPolyRec
+ | Opt_TypeSynonymInstances
+ | Opt_FlexibleInstances
| Opt_MultiParamTypeClasses
| Opt_FunctionalDependencies
| Opt_MagicHash
( "ExtendedDefaultRules", Opt_ExtendedDefaultRules ),
( "ImplicitParams", Opt_ImplicitParams ),
( "ScopedTypeVariables", Opt_ScopedTypeVariables ),
+ ( "TypeSynonymInstances", Opt_TypeSynonymInstances ),
+ ( "FlexibleInstances", Opt_FlexibleInstances ),
( "MultiParamTypeClasses", Opt_MultiParamTypeClasses ),
( "FunctionalDependencies", Opt_FunctionalDependencies ),
( "GeneralizedNewtypeDeriving", Opt_GeneralizedNewtypeDeriving ),
, Opt_GADTs
, Opt_ImplicitParams
, Opt_ScopedTypeVariables
+ , Opt_TypeSynonymInstances
+ , Opt_FlexibleInstances
, Opt_MultiParamTypeClasses
, Opt_FunctionalDependencies
, Opt_MagicHash