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  • niteria's avatar
    Kill varSetElems in tidyFreeTyCoVars · 6282bc31
    niteria authored
    I haven't observed this to have an effect on nondeterminism,
    but tidyOccName appears to modify the TidyOccEnv in a
    way dependent on the order of inputs.
    It's easy enough to change it to be deterministic to be on the
    safe side.
    
    Test Plan: ./validate
    
    Reviewers: simonmar, austin, bgamari, simonpj
    
    Reviewed By: simonpj
    
    Subscribers: thomie
    
    Differential Revision: https://phabricator.haskell.org/D2238
    
    GHC Trac Issues: #4012
    6282bc31