Breaking change [#59776]: `IntX implements Comparable<IntX>`

[Erik Ernst]

This message announces the intention to change the class `IntX` such that it implements `Comparable<IntX>` rather than `Comparable<Object>`. This change has no known impact, and it enables methods like `sortedBy` on lists of `Int64` or `Int32` elements.

Issue: https://github.com/dart-lang/sdk/issues/59776.

Please comment on this issue if you expect any impact from this change.

  best regards, Erik

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Erik Ernst  -  Google Danmark ApS

Skt Petri Passage 5, 2 sal, 1165 København K, Denmark

CVR no. 28866984