diff options
Diffstat (limited to 'compiler/GHC/Core/Coercion.hs')
| -rw-r--r-- | compiler/GHC/Core/Coercion.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/GHC/Core/Coercion.hs b/compiler/GHC/Core/Coercion.hs index 06bc235913..1449e2331d 100644 --- a/compiler/GHC/Core/Coercion.hs +++ b/compiler/GHC/Core/Coercion.hs @@ -146,6 +146,7 @@ import GHC.Types.Var.Set import GHC.Types.Name hiding ( varName ) import GHC.Types.Basic import GHC.Types.Unique +import GHC.Data.FastString import GHC.Data.Pair import GHC.Types.SrcLoc import GHC.Builtin.Names @@ -286,7 +287,7 @@ tidyCoAxBndrsForUser init_env tcvs (env', bndr') = tidyVarBndr env bndr env_wild = (occ_env, extendVarEnv subst bndr wild_bndr) wild_bndr = setVarName bndr $ - tidyNameOcc (varName bndr) (mkTyVarOcc "_") + tidyNameOcc (varName bndr) (mkTyVarOccFS (fsLit "_")) -- Tidy the binder to "_" is_wildcard :: Var -> Bool |