9bf5fc2fd3
This PR adds the types `Std.ExtDTreeMap`, `Std.ExtTreeMap` and `Std.ExtTreeSet` of extensional tree maps and sets. These are very similar in construction to the existing extensional hash maps with one exception: extensional tree maps and sets provide all functions from regular tree maps and sets. This is possible because in contrast to hash maps, tree maps are always ordered. |
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| compiler | ||
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| playground | ||
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| common.sh | ||
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| lean-toolchain | ||