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Rollup of 8 pull requests #104589

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@rustbot modify labels: rollup

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Lukas Markeffsky and others added 30 commits October 12, 2022 18:39
Remove bad impl for Eq

Update Cargo.lock and fix last ValidAlign
Clarify that the diagnostic can be retrieved with `steal_diagnostic`.
The font size and weights should be exactly the same after this commit,
but the spacing is changed to be exactly the same as methods.
Constify remaining `Layout` methods

Makes the methods on `Layout` that aren't yet unstably const, under the same feature and issue, rust-lang#67521. Most of them required no changes, only non-trivial change is probably constifying `ValidAlignment` which may affect rust-lang#102072
remove HRTB from `[T]::is_sorted_by{,_key}`

Changes the signature of `[T]::is_sorted_by{,_key}` to match `[T]::binary_search_by{,_key}` and make code like rust-lang#53485 (comment) compile.

Tracking issue: rust-lang#53485

~~Do we need an ACP for something like this?~~ Edit: Filed ACP here: rust-lang/libs-team#121
…cottmcm

`unchecked_{shl|shr}` should use `u32` as the RHS

The other shift methods, such as https://doc.rust-lang.org/nightly/std/primitive.u64.html#method.checked_shr and https://doc.rust-lang.org/nightly/std/primitive.i16.html#method.wrapping_shl, use `u32` for the shift amount.  That's consistent with other things, like `count_ones`, which also always use `u32` for a bit count, regardless of the size of the type.

This PR changes `unchecked_shl` and `unchecked_shr` to also use `u32` for the shift amount (rather than Self).

cc rust-lang#85122, the `unchecked_math` tracking issue
…ation__--this-can-be-simplified, r=scottmcm

Simplify some pointer method implementations

- Make `pointer::with_metadata_of` const (+simplify implementation) (cc rust-lang#75091)
- Simplify implementation of various pointer methods

r? ``@scottmcm``

----

`from_raw_parts::<T>(this, metadata(self))` was annoying me for a while and I've finally figured out how it should _actually_ be done.
…, r=davidtwco

Diagnostics `icu4x` based list formatting.

This adds a new kind of `DiagnosticArg` and add the ability to convert it to a `FluentValue::Custom`. When emitting fluent output, it makes use of `ListFormatter` from `icu4x` project to convert it to localized version of list following the fluent locale, as a kind of eager translation.

Tested locally with locales like `en`, `ja`, etc, and they work fine. <del>Though neither `zh-CN` nor `zh-Hans` works correctly, it seems they fallback to `und` locale somehow, emitting only comma-based list. I believe this is an internal issue of `icu4x` itself.</del>(Works fine after rust-lang#104047 (comment))

Would love to hear what others think.

r? `@davidtwco`
cc `@Manishearth`
…holk

Enforce that `dyn*` coercions are actually pointer-sized

Implement a perma-unstable, rudimentary `PointerSized` trait to enforce `dyn*` casts are `usize`-sized for now, at least to prevent ICEs and weird codegen issues from cropping up after monomorphization since currently we enforce *nothing*.

This probably can/should be removed in favor of a more sophisticated trait for handling `dyn*` conversions when we decide on one, but I just want to get something up for discussion and experimentation for now.

r? ``@eholk`` cc ``@tmandry`` (though feel free to claim/reassign)

Fixes rust-lang#102141
Fixes rust-lang#102173
…er-errors

Edit docs for `rustc_errors::Handler::stash_diagnostic`

Clarify that the diagnostic can be retrieved with `steal_diagnostic`.

r? ``@compiler-errors``
…llaumeGomez

rustdoc: use `code-header` class to format enum variants

The font size and weights should be exactly the same after this PR, but the spacing is changed to be the same as methods.

Preview: http://notriddle.com/notriddle-rustdoc-demos/variant/test_dingus_enum/enum.TestEnum.html
@rustbot rustbot added T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) A-testsuite Area: The testsuite used to check the correctness of rustc A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. rollup A PR which is a rollup labels Nov 18, 2022
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@bors r+ p=5 rollup=never

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bors commented Nov 18, 2022

📌 Commit 60b2f24 has been approved by Manishearth

It is now in the queue for this repository.

Mutually exclusive with #104573

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 18, 2022
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The job x86_64-gnu-llvm-13 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
   Compiling unwind v0.0.0 (/checkout/library/unwind)
error[E0636]: the feature `derive_const` has already been declared
   --> library/core/src/lib.rs:194:37
    |
194 | #![cfg_attr(not(bootstrap), feature(derive_const))]

For more information about this error, try `rustc --explain E0636`.
error: could not compile `core` due to previous error
Build completed unsuccessfully in 0:03:47

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A-testsuite Area: The testsuite used to check the correctness of rustc A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic rollup A PR which is a rollup S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
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