Lambda lifting leftovers in decompiled output

[pchiusano]

From: https://share.unison-lang.org/@unison/code/latest/namespaces/public/distributed/latest/;/types/@3uarccgfv6hh5312b0389kus776uqr6vkm6c8u46bd95h0k3gglmnrjaq2408vfbbgg10l3irij7avve368b9iqa6u8b6defoicher0

Not super high priority (workaround is to use a @source{blah} in the doc instead of an inline example) but I wonder if there's an easy fix.