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-rw-r--r--testsuite/tests/dependent/should_fail/PromotedClass.hs11
1 files changed, 11 insertions, 0 deletions
diff --git a/testsuite/tests/dependent/should_fail/PromotedClass.hs b/testsuite/tests/dependent/should_fail/PromotedClass.hs
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+++ b/testsuite/tests/dependent/should_fail/PromotedClass.hs
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+{-# LANGUAGE TypeInType, GADTs #-}
+
+module PromotedClass where
+
+import Data.Proxy
+
+data X a where
+ MkX :: Show a => a -> X a
+
+foo :: Proxy ('MkX 'True)
+foo = Proxy