Make absentError not depend on uniques
Make absentError not depend on uniques

As explained in the comment it will cause changes in
inlining if we don't suppress them.

Test Plan: ./validate

Reviewers: bgamari, austin, simonpj, goldfire, simonmar

Reviewed By: simonmar

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D2203

GHC Trac Issues: #4012

shlevy/ghc,olsner/ghc,olsner/ghc,snoyberg/ghc,sdiehl/ghc,vikraman/ghc,mettekou/ghc,snoyberg/ghc,snoyberg/ghc,sgillespie/ghc,shlevy/ghc,sgillespie/ghc,sdiehl/ghc,ezyang/ghc,shlevy/ghc,shlevy/ghc,ezyang/ghc,ezyang/ghc,ezyang/ghc,shlevy/ghc,mettekou/ghc,vTurbine/ghc,vikraman/ghc,ezyang/ghc,vTurbine/ghc,sdiehl/ghc,sdiehl/ghc,snoyberg/ghc,sgillespie/ghc,vikraman/ghc,vTurbine/ghc,vikraman/ghc,olsner/ghc,vikraman/ghc,snoyberg/ghc,mettekou/ghc,olsner/ghc,snoyberg/ghc,sdiehl/ghc,shlevy/ghc,olsner/ghc,mettekou/ghc,ezyang/ghc,sgillespie/ghc,ezyang/ghc,mettekou/ghc,mettekou/ghc,olsner/ghc,sgillespie/ghc,vikraman/ghc,sgillespie/ghc,sdiehl/ghc,snoyberg/ghc,mettekou/ghc,olsner/ghc,sgillespie/ghc,vTurbine/ghc,vTurbine/ghc,vTurbine/ghc,shlevy/ghc,sdiehl/ghc,vikraman/ghc,vTurbine/ghc