I totally agree the prelude is full of cruft and needs to be scraped and redone fully. But the data structures libraries are all really good and if we could jus

I totally agree the prelude is full of cruft and needs to be scraped and redone fully. But the data structures libraries are all really good and if we could just pull in the succinct and unordered stuff, it's gone some of the best data structures a standard library can ask for.