[commit: ghc] master: Define mapUnionVarSet, and use it (dfc9d30)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/dfc9d309a5202d65032c80f5b74df17035a61b8c/ghc

>---------------------------------------------------------------

commit dfc9d309a5202d65032c80f5b74df17035a61b8c
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Fri Aug 29 10:14:45 2014 +0100

    Define mapUnionVarSet, and use it
    
    Call sites are much easier to understand than before


>---------------------------------------------------------------

dfc9d309a5202d65032c80f5b74df17035a61b8c
 compiler/basicTypes/VarSet.lhs    |  8 +++++++-
 compiler/coreSyn/CoreFVs.lhs      | 10 +++++-----
 compiler/main/InteractiveEval.hs  |  4 ++--
 compiler/main/TidyPgm.lhs         | 15 ++++++---------
 compiler/simplCore/CoreMonad.lhs  |  2 +-
 compiler/simplCore/FloatIn.lhs    |  4 ++--
 compiler/simplCore/OccurAnal.lhs  | 10 +++++-----
 compiler/typecheck/TcEvidence.lhs |  8 ++++----
 compiler/typecheck/TcSimplify.lhs |  2 +-
 compiler/typecheck/TcType.lhs     |  4 ++--
 compiler/types/Coercion.lhs       |  4 ++--
 compiler/types/TypeRep.lhs        |  2 +-
 12 files changed, 38 insertions(+), 35 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc dfc9d309a5202d65032c80f5b74df17035a61b8c