Commit 777cda76 authored by Simon Peyton Jones's avatar Simon Peyton Jones
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parent c111209c
......@@ -850,6 +850,7 @@ tcHsTyVarBndr :: LHsTyVarBndr Name -> TcM TyVar
-- instance C (a,b) where
-- type F (a,b) c = ...
-- Here a,b will be in scope when processing the associated type instance for F.
-- See Note [Associated type tyvar names] in TyCon
tcHsTyVarBndr (L _ hs_tv)
= do { let name = hsTyVarName hs_tv
; mb_tv <- tcLookupLcl_maybe name
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