README.txt


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$ cabal run
Build profile: -w ghc-9.2.2 -O1
In order, the following will be built (use -v for more details):
 - repro-0.1.0.0 (exe:test) (file Main.hs changed)
Preprocessing executable 'test' for repro-0.1.0.0..
Building executable 'test' for repro-0.1.0.0..
[2 of 2] Compiling Main             ( Main.hs, /home/tom/code/ghc-refinefrominscope-panic-repro/dist-newstyle/build/x86_64-linux/ghc-9.2.2/repro-0.1.0.0/x/test/build/test/test-tmp/Main.o, /home/tom/code/ghc-refinefrominscope-panic-repro/dist-newstyle/build/x86_64-linux/ghc-9.2.2/repro-0.1.0.0/x/test/build/test/test-tmp/Main.dyn_o )
ghc: panic! (the 'impossible' happened)
  (GHC version 9.2.2:
        refineFromInScope
  InScope {wild_00 $dQuote_a2GD}
  $tcT
  Call stack:
      CallStack (from HasCallStack):
        callStackDoc, called at compiler/GHC/Utils/Panic.hs:181:37 in ghc:GHC.Utils.Panic
        pprPanic, called at compiler/GHC/Core/Opt/Simplify/Env.hs:706:30 in ghc:GHC.Core.Opt.Simplify.Env

Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug