tyThingToIfaceDecl (ATyCon tycon)
| isSynTyCon tycon
- = IfaceSyn { ifName = getOccName tycon,
- ifTyVars = toIfaceTvBndrs tyvars,
+ = IfaceSyn { ifName = getOccName tycon,
+ ifTyVars = toIfaceTvBndrs tyvars,
ifOpenSyn = syn_isOpen,
- ifSynRhs = toIfaceType syn_tyki }
+ ifSynRhs = toIfaceType syn_tyki,
+ ifFamInst = famInstToIface (tyConFamInst_maybe tycon)
+ }
| isAlgTyCon tycon
= IfaceData { ifName = getOccName tycon,