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-rw-r--r--testsuite/tests/parser/should_compile/proposal-229a.hs8
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diff --git a/testsuite/tests/parser/should_compile/proposal-229a.hs b/testsuite/tests/parser/should_compile/proposal-229a.hs
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+++ b/testsuite/tests/parser/should_compile/proposal-229a.hs
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+{-# LANGUAGE BangPatterns #-}
+
+module Proposal229a where
+
+data T a b = a :! b
+
+(!) :: x -> T a b -> (x, a, b)
+~u ! !(!m :! !n) = (u, m, n)