testsuite/tests/ghc-regress/indexed-types/should_fail/T2627b.stderr


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T2627b.hs:20:24:
    Occurs check: cannot construct the infinite type:
      a0 = Dual (Dual a0)
    In the expression: conn undefined undefined
    In an equation for `conn':
        conn (Rd k) (Wr a r) = conn undefined undefined