patch applied (ghc-6.6/ghc): Simplify desugaring of left sections
igloo at earth.li
Mon Sep 11 09:31:50 EDT 2006
Mon Sep 11 01:35:10 PDT 2006 simonpj at microsoft.com
* Simplify desugaring of left sections
MERGE TO 6.6 branch!
Some while ago I made the type checker a tiny bit more lenient about
left sections, so that
would typecheck iff
Strictly, Haskell 98 requires that the section typechecks iff
(\y. (!) x y)
typechecks, and I should really have made the relaxation dependent on a
flag, but I didn't.
Anyway, this commit fixes the *desugarer* so that it correctly desugars
the programs that the typechecker passes.
M ./compiler/deSugar/DsExpr.lhs -14 +4
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