___         ___ _
  / _ \ /\  /\/ __(_)
 / /_\// /_/ / /  | |      GHC Interactive, version 5.01, for Haskell 98.
/ /_\\/ __  / /___| |      http://www.haskell.org/ghc/
\____/\/ /_/\____/|_|      Type :? for help.

Loading package std ... linking ... done.
*** WARNING: . is writable by someone else, IGNORING!
*** WARNING: ./.ghci is writable by someone else, IGNORING!
Prelude> :unset +s +t
Prelude> :set -fglasgow-exts
Prelude> -- test for contexts on existential types crashing the interpreter
Prelude> :l ghci006
Ok, modules loaded: Ghci006.
Ghci006> showQ (Q "foo")
"\"foo\""
Ghci006> 
Ghci006> Leaving GHCi.