Rik Steenkamp authored Mar 05, 2016 and Ben Gamari committed Mar 05, 2016

Now the existentially quantified type variables are printed
at the correct location when printing a pattern synonym type
from an `IfacePatSyn`. The function `pprIfaceContextMaybe`
has been removed as it is no longer needed.

Fixes #11524.

Reviewers: austin, goldfire, thomie, bgamari, mpickering

Reviewed By: bgamari

Differential Revision: https://phabricator.haskell.org/D1958

GHC Trac Issues: #11524