Split core/num/mod.rs to smaller mods

[tesuji]

Note for reviewer:

• I split to multiple commits for easier reviewing, but I could git squash them all to one if requested.
• Recommend pulling this change locally and using advanced git diff viewer or this command:

  git show --reverse --color-moved=dimmed-zebra master..
  

---

I split core/num/mod.rs to these modules:

• error: For error structs like ParseIntError.
• blanket shells dir: For dummy number type modules: std::i32, std::f32, and the likes. Why? See below.
• int_macros and uint_macros: Real implementation of all integer types via int_impl and uint_impl
• nonzero: For NonZero* types and their implementations.
• wrapping: For Wrapping<T> types.

[tesuji]

cc #60302
r? @sfackler for review or reassignment.

@rustbot modify labels: +S-waiting-on-review

[bors]

☔ The latest upstream changes (presumably #76422) made this pull request unmergeable. Please resolve the merge conflicts.

[bors]

☔ The latest upstream changes (presumably #76540) made this pull request unmergeable. Please resolve the merge conflicts.

Note that reviewers usually do not review pull requests until merge conflicts are resolved! Once you resolve the conflicts, you should change the labels applied by bors to indicate that your PR is ready for review. Post this as a comment to change the labels:

@rustbot modify labels: +S-waiting-on-review -S-waiting-on-author

[tesuji]

Rebased.

[tesuji]

r? @KodrAus

[bors]

☔ The latest upstream changes (presumably #76804) made this pull request unmergeable. Please resolve the merge conflicts.

Note that reviewers usually do not review pull requests until merge conflicts are resolved! Once you resolve the conflicts, you should change the labels applied by bors to indicate that your PR is ready for review. Post this as a comment to change the labels:

@rustbot modify labels: +S-waiting-on-review -S-waiting-on-author

[tesuji]

Rebased.

[varkor]

@rust-lang/libs: is there someone who could review this PR? It bitrots quite quickly.

[SimonSapin]

Looks good, thanks!

@bors r+

[bors]

📌 Commit 5cb99ae3a56c07f8f3463bada49c4756ec7a29e0 has been approved by SimonSapin

[bors]

☔ The latest upstream changes (presumably #76912) made this pull request unmergeable. Please resolve the merge conflicts.

Note that reviewers usually do not review pull requests until merge conflicts are resolved! Once you resolve the conflicts, you should change the labels applied by bors to indicate that your PR is ready for review. Post this as a comment to change the labels:

@rustbot modify labels: +S-waiting-on-review -S-waiting-on-author

[varkor]

@lzutao: could you rebase once more? I'll increase the priority of the PR, so it shouldn't happen again.

@bors p=100

[tesuji]

Done. Reviewer could run

git range-diff 5cb99ae3a56c07f8f3463bada49c4756ec7a29e0...a50ec5f144b414d3c14fe04fc07f935c2ea0ab0f

locally to get the diff.

[SimonSapin]

@bors r+

[bors]

📌 Commit a50ec5f has been approved by SimonSapin

[bors]

⌛ Testing commit a50ec5f with merge 59fb88d...

[bors]

☀️ Test successful - checks-actions, checks-azure
Approved by: SimonSapin
Pushing 59fb88d to master...