[commit: ghc] wip/T14880-nondet-fv: Rewrite tyCoVarsOf... in terms of new nondet FV (NDFV) (e74ba20)

[git at git.haskell.org]

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

On branch  : wip/T14880-nondet-fv
Link       : http://ghc.haskell.org/trac/ghc/changeset/e74ba209f0606724085534b0e988c8545915c442/ghc

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commit e74ba209f0606724085534b0e988c8545915c442
Author: Tobias Dammers <tdammers at gmail.com>
Date:   Mon Aug 6 23:39:36 2018 +0200

    Rewrite tyCoVarsOf... in terms of new nondet FV (NDFV)
    
    NDFV is a non-deterministic variation on FV - essentially, FV without
    the list part, but with all the other characteristics. This is to figure
    out whether the list part is the cause of performance issues in Trac #14880.


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e74ba209f0606724085534b0e988c8545915c442
 compiler/ghc.cabal.in             |   1 +
 compiler/types/TyCoRep.hs         |  77 ++++++++++++++++-
 compiler/utils/{FV.hs => NDFV.hs} | 168 +++++++++++++++++++-------------------
 3 files changed, 161 insertions(+), 85 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 e74ba209f0606724085534b0e988c8545915c442