use Any as the HValue type, this should be a bit safer than forall a.a

diff --git a/compiler/ghci/ByteCodeLink.lhs b/compiler/ghci/ByteCodeLink.lhs
index 7304d02..e8bae70 100644 (file)
--- a/compiler/ghci/ByteCodeLink.lhs
+++ b/compiler/ghci/ByteCodeLink.lhs
@@ -58,7 +58,7 @@ import GHC.Base               ( writeArray#, RealWorld, Int(..), Word# )
 
 \begin{code}
 type ClosureEnv = NameEnv (Name, HValue)
-newtype HValue = HValue (forall a . a)
+newtype HValue = HValue Any
 
 emptyClosureEnv = emptyNameEnv