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-rw-r--r--testsuite/tests/deriving/should_run/T5041.hs10
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diff --git a/testsuite/tests/deriving/should_run/T5041.hs b/testsuite/tests/deriving/should_run/T5041.hs
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+++ b/testsuite/tests/deriving/should_run/T5041.hs
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+{-# LANGUAGE MagicHash #-}
+
+module Main where
+
+data T = T1# | T2# Int deriving( Read, Show )
+
+foo :: [T]
+foo = read "[ T1#, T2# 4, T2# 5 ]"
+main = print foo
+