#8218: Missing instance Monad WrappedMonad -------------------------------------+------------------------------------ Reporter: jcpetruzza | Owner: monoidal Type: feature request | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by Krzysztof Gogolewski <krz.gogolewski@…>): In [changeset:ffa99f42e54b21ac09442b3770e3b4c346cd5c70/testsuite]: {{{ #!CommitTicketReference repository="testsuite" revision="ffa99f42e54b21ac09442b3770e3b4c346cd5c70" Wibble after #8218 The new hidden line in output of tcfail181 is instance Monad m => Monad (Control.Applicative.WrappedMonad m). It might seem weird that Control.Applicative is suggested when not imported, but it's almost certainly a side-effect of AMP and it's harmless. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8218#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler