reland and fix RUST-147622#148438

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joboet wants to merge 6 commits intorust-lang:mainfrom

joboet:unicode_data_fixes

Commits on Nov 3, 2025

refactor: move runtime functions to core

Kmeakin
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joboet
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refactor: format `unicode_data`

Kmeakin
authored and
joboet
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refactor: remove check that `first_code_point` is non-ascii

Kmeakin
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joboet
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refactor: make string formatting more readable

Kmeakin
authored and
joboet
committed
refactor: make `unicode_data` tests normal tests

Kmeakin
authored and
joboet
committed
fix fallout from RUST-147622
joboet
committed