Problems with head

[Marcin 'Qrczak' Kowalczyk]

1. Current version dies in the simplifier:

../../../ghc/compiler/ghc-inplace -ldl -cpp -fglasgow-exts -O -Rghc-timing  -package-name std -split-objs  -monly-3-regs  -c PrelWord.lhs -o PrelWord.o
ghc-5.01: panic! (the `impossible' happened, GHC version 5.01):
        stack overflow


2. Yesterday's version, after Simon's GC changes, compiles but doesn't
bootstrap: genprimopcode tries to enter absent argument.

-- 
 __("<  Marcin Kowalczyk * qrczak@knm.org.pl http://qrczak.ids.net.pl/
 \__/
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QRCZAK