Tuple.prototype.sorted not implemented

[Robin Ricard]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce

console.log(#[3, 2, 1].sorted() === #[1, 2, 3]);

    "_recordTuplePolyfill.Tuple(...).sorted is not a function"

    TypeError {}

Expected behavior

Shows true

Screenshots
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Environment (please complete the following information):

• Windows 10
• Firefox 78.0.1

Additional context
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