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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Simon Peyton Jones pushed to branch wip/T23070-dicts at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b235552bb0385292102c6fd9212dcf86d5caf53f">b235552b</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-05-14T00:27:38+01:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add the SolverStage monad

This refactoring makes a substantial improvement in the
structure of GHC.Tc.Solver.Equality.

I also added the new types  (akin to EqCt).
  IrredCt
  DictCt

New module
   GHC.Tc.Solver.Solve

Killed off:
   GHC.Tc.Solver.Canonical
   GHC.Tc.Solver.Interact

Better commit message to come
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21 changed files:
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compiler/GHC/Builtin/Types/Prim.hs
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compiler/GHC/Core.hs
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compiler/GHC/Core/InstEnv.hs
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compiler/GHC/Core/Predicate.hs
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compiler/GHC/Core/TyCo/Compare.hs
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compiler/GHC/Core/TyCon.hs
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compiler/GHC/Core/Type.hs
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compiler/GHC/Core/Unify.hs
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compiler/GHC/HsToCore/Binds.hs
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compiler/GHC/Tc/Deriv/Generate.hs
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compiler/GHC/Tc/Errors.hs
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compiler/GHC/Tc/Errors/Types.hs
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compiler/GHC/Tc/Gen/App.hs
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compiler/GHC/Tc/Gen/HsType.hs
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compiler/GHC/Tc/Gen/Pat.hs
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compiler/GHC/Tc/Gen/Rule.hs
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compiler/GHC/Tc/Instance/Class.hs
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compiler/GHC/Tc/Instance/Typeable.hs
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compiler/GHC/Tc/Solver.hs
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compiler/GHC/Tc/Solver/Dict.hs
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<a href="#03ec4f8741105271af29a61fdb47c8feba9bbcfa">
compiler/GHC/Tc/Solver/Equality.hs
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The diff was not included because it is too large.
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