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-rw-r--r--compiler/Language/Haskell/Syntax/Basic.hs4
-rw-r--r--compiler/Language/Haskell/Syntax/Expr.hs1
2 files changed, 2 insertions, 3 deletions
diff --git a/compiler/Language/Haskell/Syntax/Basic.hs b/compiler/Language/Haskell/Syntax/Basic.hs
index 092231b7d1..77ad3fe0e0 100644
--- a/compiler/Language/Haskell/Syntax/Basic.hs
+++ b/compiler/Language/Haskell/Syntax/Basic.hs
@@ -53,8 +53,8 @@ Field Labels
-- | Field labels are just represented as strings;
-- they are not necessarily unique (even within a module)
-type FieldLabelString = FastString
-
+newtype FieldLabelString = FieldLabelString { field_label:: FastString }
+ deriving (Data, Eq)
{-
************************************************************************
diff --git a/compiler/Language/Haskell/Syntax/Expr.hs b/compiler/Language/Haskell/Syntax/Expr.hs
index 326c9903dc..8dda0c8c81 100644
--- a/compiler/Language/Haskell/Syntax/Expr.hs
+++ b/compiler/Language/Haskell/Syntax/Expr.hs
@@ -1638,4 +1638,3 @@ isMonadDoCompContext ListComp = False
isMonadDoCompContext GhciStmtCtxt = False
isMonadDoCompContext (DoExpr _) = False
isMonadDoCompContext (MDoExpr _) = False
-