Panic on piResultTys1
I've come across a GHC panic which I wasn't able to reproduce after I cleaned cabal's build directory.
Unfortunately there might not be much to do about this except for a quick audit of the code that might lead to the bug.
Otherwise, I think we can close this until it comes up in a reproducible environment. I just thought it might be useful to at least report.
<no location info>: error:
panic! (the 'impossible' happened)
GHC version 9.4.4:
piResultTys1
Type
[MappedBuffer]
Call stack:
CallStack (from HasCallStack):
callStackDoc, called at compiler/GHC/Utils/Panic.hs:182:37 in ghc:GHC.Utils.Panic
pprPanic, called at compiler/GHC/Core/Type.hs:1397:5 in ghc:GHC.Core.Type
Please report this as a GHC bug: https://www.haskell.org/ghc/reportabug