Bytecode generator can't handle unboxed tuples

We need to implement unboxed tuple support in ghci.

For example, with:

f :: a -> b -> (# a, b #)
f x y = (# x, y #)

we get:

$ ghci -v0 -fglasgow-exts w.hs
ghc-6.6: panic! (the 'impossible' happened)
  (GHC version 6.6 for x86_64-unknown-linux):
        Bytecode generator can't handle unboxed tuples.  Possibly due
        to foreign import/export decls in source.  Workaround:
        compile this module to a .o file, then restart session.

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

Trac metadata

Trac field	Value
Version	6.6
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
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Blocking
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Operating system	Unknown
Architecture	Unknown