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Diffstat (limited to 'compiler/GHC/Tc/Gen/Head.hs')
| -rw-r--r-- | compiler/GHC/Tc/Gen/Head.hs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/GHC/Tc/Gen/Head.hs b/compiler/GHC/Tc/Gen/Head.hs index eb5da5ca26..3d6d51ff22 100644 --- a/compiler/GHC/Tc/Gen/Head.hs +++ b/compiler/GHC/Tc/Gen/Head.hs @@ -546,7 +546,9 @@ finish_ambiguous_selector lr@(L _ rdr) parent_type Nothing -> failWithTc (fieldNotInType parent rdr) ; Just gre -> + -- See Note [Unused name reporting and HasField] in GHC.Tc.Instance.Class do { addUsedGRE True gre + ; keepAlive (greMangledName gre) ; return (greMangledName gre) } } } } } -- This field name really is ambiguous, so add a suitable "ambiguous |