Rollup of 10 pull requests#147661

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matthiaskrgr wants to merge 19 commits intorust-lang:masterfrom

matthiaskrgr:rollup-7pw7gas

Commits on Sep 6, 2025

uncommented u64 impl
Kivooeo
committed

Commits on Oct 3, 2025

Fix comment, change first_pass to error_on_missing_defining_use, remove the assert in favor over a comment, and change to & for &mut
jackh726
committed

Commits on Oct 5, 2025

Remove unneeded get_hidden_type
jackh726
committed

Commits on Oct 6, 2025

constify basic Clone impls
npmccallum
committed

Commits on Oct 8, 2025

Commits on Oct 10, 2025

rename `DecodeMut` to `Decode`
cyrgani
committed

Commits on Oct 13, 2025

Review comments. Move resolve_vars_if_possible into fn and add test minimizations. Update comment and test.
jackh726
committed