Co-authored-by: stifskere <esteve@memw.es>

Similar to the existing `IoLines` item.  It will be used in Clippy to
detect uses of `Split` leading to infinite loops similar to the existing
lint for `Lines`.

This is now exposed via `sysctl` as of macOS "Tahoe" 26.4 (or possibly earlier).

#docs doesn't seem to exist anymore, so point people to `t-libs`.
Also include direct link to topic since Zulip is world-viewable now.

Exercises a self-referencing type alias with lazy_type_alias and
min_generic_const_args, which previously caused an ICE during
normalization.

…ulacrum

don't drop arguments' temporaries in `dbg!`

Fixes rust-lang#153850

Credit to @theemathas for help with macro engineering ^^

r? libs

…inarycat

rustdoc: add missing {os,target,target_env} values for cfg pretty printer

…ble-path-suggestion, r=estebank

Fix invalid type suggestion for item nested in function

Fixes rust-lang#146786

I also tried to add the `omit_parent` logic in pretty formatter here:
https://github.com/chenyukang/rust/blob/69b6d26d05006dca7556abc555fb0e029ecf1f4e/compiler/rustc_middle/src/ty/print/pretty.rs#L2240-L2295
so that we don't need to add `should_omit_parent_def_path` and `reset_path`.

but seems there will be duplicate print code with `default_print_def_path`.

maybe r? @estebank

…henyukang

Add regression test for recursive lazy type alias normalization ICE

Regression test for rust-lang#152633.

The normalization ICE with recursive lazy_type_alias + min_generic_const_args was fixed by rust-lang#152040 but didn't get a test. Compiler now reports E0275 instead of crashing.

Closes rust-lang#152633

…alueFormat-powerpc, r=marcoieni

Fix LegacyKeyValueFormat report from docker build: powerpc

Part of rust-lang#152305

r? @marcoieni

…Simulacrum

feat: reimplement `hash_map!` macro

originally implemented in rust-lang#144070, this had to be reverted in rust-lang#148049 due to name ambiguity, as the macro was automatically put into the prelude. now, that rust-lang#139493 has landed, it is possible to have a top-level macro, that is not exported by default, which should make it possible to reland this again.

implements rust-lang#144032
implementation from rust-lang#144070, original author has been added as co-author
effectively reverts rust-lang#148049

Add `IoSplit` diagnostic item for `std::io::Split`

Similar to the existing `IoLines` item.  It will be used in Clippy to detect uses of `Split` leading to infinite loops similar to the existing lint for `Lines`.

…ulacrum

std_detect on AArch64 Darwin: Detect FEAT_SVE_B16B16

This is now exposed via `sysctl` as of macOS "Tahoe" 26.4 (or possibly earlier).

…e, r=jieyouxu

Fix ambiguous parsing in bootstrap.py

Noticed this while trying to produce rustdoc-json for std and saw JSON output from the bootstrap.py build of bootstrap's Rust code. This is technically a breaking change, but I think the fix should be simple and arguably an improvement in future compatibility if/when the flag set changes.

…mulacrum

Panic in Hermit clock_gettime

Follow-up to rust-lang#154234.

r? @Mark-Simulacrum

…l, r=Noratrieb

update zulip link in `std` documentation

#docs doesn't seem to exist anymore, so point people to `t-libs`. Also include direct link to topic since Zulip is world-viewable now.