PrelList.badHead - has GHC got a hangover?

[George Russell]

Sadly my shiny new GHC (downloaded and compiled from CVS last night) seems to
have produced an inconsistent .hi file (attached) when compiling the basis.
The problem is that badHead is mentioned in a inline bit of gunk, but
the type for it isn't specified anywhere.  (It's an internal value which
doesn't get exported.)

PrelList.hi