CmmLayoutStack: Correctly annotate Sp adjustments with unwinding information
CmmLayoutStack: Correctly annotate Sp adjustments with unwinding information

Test Plan: Validate

Reviewers: austin, simonmar

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D3104

ezyang/ghc,shlevy/ghc,sdiehl/ghc,ezyang/ghc,ezyang/ghc,ezyang/ghc,shlevy/ghc,sdiehl/ghc,sdiehl/ghc,shlevy/ghc,shlevy/ghc,sdiehl/ghc,ezyang/ghc,shlevy/ghc,shlevy/ghc,ezyang/ghc,ezyang/ghc,shlevy/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc