Fixesrust-lang/rust-clippy#15192 by adding checks for no_std while
giving out Box recommendation
```
changelog: [`large_enum_variant`]: Dont suggest `Box` in `no_std` mode
```
- Updated the `help:` text to include a more general suggestion
- Ensures compatibility with `#[no_std]` environments where boxing is
still possible via `alloc`.
Fixes for LLVM 21
This fixes compatibility issues with LLVM 21 without performing the actual upgrade. Split out from https://github.com/rust-lang/rust/pull/143684.
This fixes three issues:
* Updates the AMDGPU data layout for address space 8.
* Makes emit-arity-indicator.rs a no_core test, so it doesn't fail on non-x86 hosts.
* Explicitly sets the exception model for wasm, as this is no longer implied by `-wasm-enable-eh`.
Remove deprecated `MaybeUninit` slice methods
These were left in to make migration a bit easier, although they should be removed now since they were never stable.
[rustdoc] Make aliases search support partial matching
Fixesrust-lang/rust#140782.
To make this work, I moved aliases into the `searchIndex` like any other item. It links to the "original" item with a new `original` field. No so great part is that we need to have some fields like `bitIndex` to be set on the alias to make the description load to work but I consider it minor enough to be ok.
This PR voluntarily doesn't handle de-prioritization of aliases as ```@lolbinarycat``` wished to work on this so I'll leave them this part. 😉
cc ```@lolbinarycat```
The conversation in 143502 made be realize how easy this is to handle, since the only possibilty is ZSTs -- everything else ends up with the destination being `LocalKind::Memory` and thus doesn't call `codegen_rvalue_operand` at all.
This gets us perilously close to a world where `rvalue_creates_operand` only ever returns true. I'll try out such a world next :)
tests: Require `run-fail` ui tests to have an exit code (`SIGABRT` not ok)
And introduce two new directives for ui tests:
* `run-crash`
* `run-fail-or-crash`
Normally a `run-fail` ui test like tests that panic shall not be terminated by a signal like `SIGABRT`. So begin having that as a hard requirement.
Some of our current tests do terminate by a signal/crash however. Introduce and use `run-crash` for those tests. Note that Windows crashes are not handled by signals but by certain high bits set on the process exit code. Example exit code for crash on Windows: `0xc000001d` (`STATUS_ILLEGAL_INSTRUCTION`). Because of this, we define "crash" on all platforms as "not exit with success and not exit with a regular failure code in the range 1..=127".
Some tests behave differently on different targets:
* Targets without unwind support will abort (crash) instead of exit with failure code 101 after panicking. As a special case, allow crashes for `run-fail` tests for such targets.
* Different sanitizer implementations handle detected memory problems differently. Some abort (crash) the process while others exit with failure code 1. Introduce and use `run-fail-or-crash` for such tests.
This adds further (cc https://github.com/rust-lang/rust/pull/142304, https://github.com/rust-lang/rust/pull/142886) protection against the regression in https://github.com/rust-lang/rust/issues/123733 since that bug also manifested as `SIGABRT` in `tests/ui/panics/panic-main.rs` (shown as `Aborted (core dumped)` in the logs attached to that issue, and I have also been able to reproduce this locally).
### TODO
- [x] **Q:** what about on Windows?
**A:** we'll treat any exit code outside of 1 - 127 as "crashed", and we'll do the same on unix.
- [x] test all permutations of actual vs expected
**Done:** See https://github.com/rust-lang/rust/pull/143002#issuecomment-3007502894.
- [x] Handle targets without unwind support
- [x] Add `run-fail-or-crash` for some sanitizer tests
- [x] remote-test-client. See https://github.com/rust-lang/rust/pull/143448
### Zulip discussion
See https://rust-lang.zulipchat.com/#narrow/channel/122651-general/topic/compiletest.3A.20terminate.20by.20signal.20vs.20exit.20with.20error/with/525611235
try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-gnu
try-job: dist-i586-gnu-i586-i686-musl
try-job: test-various
try-job: armhf-gnu
Closesrust-lang/rust-clippy#15007
Removes the `break` stmt and the dead code after it when appropriate.
changelog: [`never_loop`] Make sure to remove `break` in suggestions
this makes us less vulnerable to MITM and supply chain attacks.
it also means that the CI scripts are no longer responsible for
tracking the versions of these tools.
it should also avoid the situation where local tsc and CI
disagree on the presense of errors due to them being different versions.
