Tue Dec 4 06:58:03 PST 2007 [EMAIL PROTECTED]
* Make eta reduction check more carefully for bottoms (fix Trac #1947)
Eta reduction was wrongly transforming
f = \x. f x
to
f = f
Solution: don't trust f's arity information; instead look at its
unfolding. See Note [Eta reduction conditions]
Almost all the new lines are comments!
M ./compiler/simplCore/SimplUtils.lhs -23 +75
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