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niteria authored
varSetElemsWellScoped introduces unnecessary non-determinism in inferred type signatures. Removing this instance required changing the representation of TcDepVars to use deterministic sets. This is the last occurence of varSetElemsWellScoped, allowing me to finally remove it. Test Plan: ./validate I will update the expected outputs when commiting, some reordering of type variables in types is expected. Reviewers: goldfire, simonpj, austin, bgamari Reviewed By: simonpj Subscribers: thomie, simonmar Differential Revision: https://phabricator.haskell.org/D2135 GHC Trac Issues: #4012
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