[commit: ghc] ghc-8.0: Define mkTvSubst, and use it (dedff08)

[git at git.haskell.org]

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

On branch  : ghc-8.0
Link       : http://ghc.haskell.org/trac/ghc/changeset/dedff088136aab9a992e648d0444b34768b5d561/ghc

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

commit dedff088136aab9a992e648d0444b34768b5d561
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Mon Feb 8 17:36:52 2016 +0000

    Define mkTvSubst, and use it
    
       mkTvSubst :: InScopeSet -> TvSubstEnv -> TCvSubst
    produces a TCvSubst with an empty CvSubstEnv
    
    (cherry picked from commit fac0efc3f7a583a3b5b903b5c78e4f8455e95e17)


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dedff088136aab9a992e648d0444b34768b5d561
 compiler/typecheck/TcDeriv.hs    |  4 +---
 compiler/typecheck/TcGenDeriv.hs |  6 ++----
 compiler/typecheck/TcInstDcls.hs |  4 +---
 compiler/typecheck/TcType.hs     |  2 +-
 compiler/types/FamInstEnv.hs     |  3 +--
 compiler/types/TyCoRep.hs        | 16 +++++++++++-----
 compiler/types/Unify.hs          | 18 ++++++++----------
 7 files changed, 25 insertions(+), 28 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 dedff088136aab9a992e648d0444b34768b5d561