nameModule $wlookup_nm

This recently started happening in HEAD. The last build in which it did not happen was on 1 Dec 2009. The program is nofib/real/veritas:

==nofib== veritas: time to compile Parse follows...
/64playpen/simonmar/nightly/HEAD-cam-04-unx/x86_64-unknown-linux/inplace/bin/ghc-stage2 -H32m -O -O -Rghc-timing -H32m -hisuf hi -c Parse.lhs -o Parse.o
ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 6.13.20091213 for x86_64-unknown-linux):
	nameModule $wlookup_nm{v r2Mh}

Trac metadata

Trac field	Value
Version	6.13
Type	Bug
TypeOfFailure	OtherFailure
Priority	high
Resolution	Unresolved
Component	Compiler
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