Would it be a good or bad idea to make dropWhile try to fuse?

[David Feuer]

On Sat, Jul 26, 2014 at 12:55 PM, Carter Schonwald <
carter.schonwald at gmail.com> wrote:
> Why not do both? :-) criterion is a very powerful tool for these micro
> benchmark workloads.

Do you know where I can find real uses of scanr, scanl, and takeWhile? The
GHC type checker seems to use scanl once. That's not enough to get a sense.
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