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diff --git a/testsuite/tests/typecheck/should_run/tcrun008.hs b/testsuite/tests/typecheck/should_run/tcrun008.hs
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+{-# LANGUAGE Rank2Types #-}
+
+-- !!! Check that record selectors for polymorphic fields work right
+
+module Main where
+
+class Foo a where
+ bar :: a -> [a]
+
+instance Foo Int where
+ bar x = replicate x x
+
+instance Foo Bool where
+ bar x = [x, not x]
+
+data Record = R {
+ blub :: Foo a => a -> [a]
+ }
+
+main = do { let r = R {blub = bar}
+ ; print (blub r (3::Int))
+ ; print (blub r True)
+ }
+
+
+