Moritz Angermann authored Oct 03, 2017 and Ben Gamari committed Oct 03, 2017

We seem to not be feeding either live registers or the arguments when
generating the fast call in genapply.  This results in strange signature
missmatches between the callee (expecting no registers) and the call
site, expecting to pass registers.

Test Plan: validate

Reviewers: bgamari, simonmar, austin

Reviewed By: simonmar

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D4029