Allow the solved dictionaries to propagate from outside in
authorSimon Peyton Jones <simonpj@microsoft.com>
Thu, 6 Nov 2014 13:54:20 +0000 (13:54 +0000)
committerSimon Peyton Jones <simonpj@microsoft.com>
Thu, 6 Nov 2014 15:42:26 +0000 (15:42 +0000)
commitc945477fba81b541b5a9c59d982447b862f601f4
treecfd15dc71d434670ce49edfe97dba93c3db3f338
parentcb6ccadf78eba0a36742d4f99eda41c1464fbec6
Allow the solved dictionaries to propagate from outside in

See Note [Propagate solved dictionaries] in TcSMonad.  This
can signficantly reduce the number of solver steps.
compiler/typecheck/TcSMonad.lhs