rts: Produce stack trace on fatal error
rts: Produce stack trace on fatal error

Test Plan: Validate

Reviewers: austin, simonmar

Reviewed By: simonmar

Subscribers: simonmar, thomie, scpmw

Differential Revision: https://phabricator.haskell.org/D1418

ezyang/ghc,mcschroeder/ghc,AlexanderPankiv/ghc,ezyang/ghc,ezyang/ghc,sdiehl/ghc,oldmanmike/ghc,da-x/ghc,ezyang/ghc,olsner/ghc,nushio3/ghc,sdiehl/ghc,olsner/ghc,vikraman/ghc,vTurbine/ghc,tjakway/ghcjvm,nushio3/ghc,oldmanmike/ghc,mcschroeder/ghc,elieux/ghc,da-x/ghc,da-x/ghc,vTurbine/ghc,shlevy/ghc,sgillespie/ghc,AlexanderPankiv/ghc,vTurbine/ghc,vTurbine/ghc,snoyberg/ghc,sgillespie/ghc,tjakway/ghcjvm,nushio3/ghc,oldmanmike/ghc,GaloisInc/halvm-ghc,oldmanmike/ghc,sgillespie/ghc,olsner/ghc,shlevy/ghc,AlexanderPankiv/ghc,elieux/ghc,mettekou/ghc,mcschroeder/ghc,oldmanmike/ghc,mettekou/ghc,snoyberg/ghc,sgillespie/ghc,sgillespie/ghc,mettekou/ghc,sgillespie/ghc,tjakway/ghcjvm,sdiehl/ghc,GaloisInc/halvm-ghc,nushio3/ghc,oldmanmike/ghc,da-x/ghc,shlevy/ghc,olsner/ghc,da-x/ghc,olsner/ghc,shlevy/ghc,gridaphobe/ghc,shlevy/ghc,tjakway/ghcjvm,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,snoyberg/ghc,sdiehl/ghc,sdiehl/ghc,oldmanmike/ghc,nushio3/ghc,snoyberg/ghc,mcschroeder/ghc,olsner/ghc,vikraman/ghc,elieux/ghc,mcschroeder/ghc,vikraman/ghc,vikraman/ghc,gridaphobe/ghc,mcschroeder/ghc,ezyang/ghc,elieux/ghc,da-x/ghc,shlevy/ghc,vikraman/ghc,mettekou/ghc,vTurbine/ghc,vikraman/ghc,nushio3/ghc,tjakway/ghcjvm,GaloisInc/halvm-ghc,mettekou/ghc,elieux/ghc,tjakway/ghcjvm,mettekou/ghc,vTurbine/ghc,gridaphobe/ghc,elieux/ghc,elieux/ghc,GaloisInc/halvm-ghc,vikraman/ghc,sdiehl/ghc,sgillespie/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,snoyberg/ghc,ezyang/ghc,shlevy/ghc,gridaphobe/ghc,sdiehl/ghc,snoyberg/ghc,AlexanderPankiv/ghc,AlexanderPankiv/ghc,AlexanderPankiv/ghc,nushio3/ghc,mettekou/ghc,gridaphobe/ghc,olsner/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,tjakway/ghcjvm,ezyang/ghc,gridaphobe/ghc,gridaphobe/ghc,da-x/ghc,snoyberg/ghc