rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

Rollup of 23 pull requests

Successful merges:

 - #159720 (document #[global_allocator] constraints)
 - #159732 (optimization: don't look for diagnostic/canonical items without rustc_attrs enabled)
 - #159738 (implement `CovariantUnsafeCell`)
 - #159740 (reuse regular exported_non_generic_symbols logic in Miri)
 - #159780 (check `extern "custom"` function pointers)
 - #159786 (rustdoc-js: ignore editor temp files in test folder discovery)
 - #159819 (std::sync::poison: disable auto_cfg on PoisonError::new)
 - #155388 (stepping into where-clauses during normalization may be productive)
 - #155914 (when bailing on ambiguity, don't force other results to ambig)
 - #159204 (Add support to caller_location to rustc_public)
 - #159411 ([rustdoc] Correctly handle output options with --show-coverage)
 - #159439 (Fix(lib/fs/win): Fall back on Win32 delete for `Dir::remove_file`)
 - #159676 (Update wasm-component-ld to 0.5.27)
 - #159730 (allow accessing the contents of UnsafeCell without going through get)
 - #159809 (Avoid `#[target_features]`)
 - #159810 (Add tuple never coercion collection regression test)
 - #159826 (Remove redundant `#[rustc_paren_sugar]` feature gate)
 - #159853 (Updated expect messages for `CString` struct and method documentation)
 - #159877 (Revert "Export `derive` at `core::derive` and `std::derive`")
 - #159878 (bootstrap: Remove obsolete option `build.compiletest-use-stage0-libtest`)
 - #159882 (Update expect messages in library/alloc/boxed.rs and library/alloc/string.rs to follow the style guide)
 - #159891 (Split multiline derives into std/rustc macros)
 - #159895 (rustc-dev-guide subtree update)

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

Rollup of 23 pull requests

Successful merges:

 - #159673 (bootstrap: forward -fdebug-prefix-map when using cc)
 - #159720 (document #[global_allocator] constraints)
 - #159732 (optimization: don't look for diagnostic/canonical items without rustc_attrs enabled)
 - #159738 (implement `CovariantUnsafeCell`)
 - #159740 (reuse regular exported_non_generic_symbols logic in Miri)
 - #159780 (check `extern "custom"` function pointers)
 - #159786 (rustdoc-js: ignore editor temp files in test folder discovery)
 - #159819 (std::sync::poison: disable auto_cfg on PoisonError::new)
 - #155388 (stepping into where-clauses during normalization may be productive)
 - #155914 (when bailing on ambiguity, don't force other results to ambig)
 - #159204 (Add support to caller_location to rustc_public)
 - #159411 ([rustdoc] Correctly handle output options with --show-coverage)
 - #159439 (Fix(lib/fs/win): Fall back on Win32 delete for `Dir::remove_file`)
 - #159676 (Update wasm-component-ld to 0.5.27)
 - #159730 (allow accessing the contents of UnsafeCell without going through get)
 - #159809 (Avoid `#[target_features]`)
 - #159810 (Add tuple never coercion collection regression test)
 - #159826 (Remove redundant `#[rustc_paren_sugar]` feature gate)
 - #159853 (Updated expect messages for `CString` struct and method documentation)
 - #159878 (bootstrap: Remove obsolete option `build.compiletest-use-stage0-libtest`)
 - #159882 (Update expect messages in library/alloc/boxed.rs and library/alloc/string.rs to follow the style guide)
 - #159891 (Split multiline derives into std/rustc macros)
 - #159895 (rustc-dev-guide subtree update)

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@f5333a6.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

…uwer

Rollup of 24 pull requests

Successful merges:

 - #159638 (bootstrap: Split the `Step` trait into multiple traits)
 - #159774 (rustc_trait_selection: fix trait solver hang caused by degenerate obligations)
 - #159837 (line-tables-only test: check that the line number matches the function name)
 - #159946 (Update Enzyme submodule to imporve llvm-cov)
 - #159617 (Fix up `#[linkage]` target checking)
 - #159733 (std: Switch implementations of `thread_local!` for WASI)
 - #159783 (Check unsafe impls on safe EIIs)
 - #159810 (Add tuple never coercion collection regression test)
 - #159821 (Update expect message using the recommended style in binary_heap module)
 - #159826 (Remove redundant `#[rustc_paren_sugar]` feature gate)
 - #159846 (Implement `str::copy_from_str`)
 - #159849 (rustc_parse: Stop returning `Option` from statement parsing)
 - #159853 (Updated expect messages for `CString` struct and method documentation)
 - #159875 (More cleanup in `rustc_attr_parsing`)
 - #159882 (Update expect messages in library/alloc/boxed.rs and library/alloc/string.rs to follow the style guide)
 - #159891 (Split multiline derives into std/rustc macros)
 - #159893 (Fix `find_attr` hygiene and `rustc_hir` cleanups)
 - #159895 (rustc-dev-guide subtree update)
 - #159902 (Clarify that the expected runtime symbols signature is for the current target only)
 - #159914 (Fix error in diagnostic on_unmatched_args)
 - #159917 (spare capacity mut constification)
 - #159918 (rename abort_unwind → abort_on_unwind)
 - #159936 (Minor `rustc_ast::ast` doc cleanups)
 - #159945 (Update expect messages in library/core/src/ptr/non_null.rs)

…uwer

Rollup of 24 pull requests

Successful merges:

 - #159638 (bootstrap: Split the `Step` trait into multiple traits)
 - #159774 (rustc_trait_selection: fix trait solver hang caused by degenerate obligations)
 - #159837 (line-tables-only test: check that the line number matches the function name)
 - #159946 (Update Enzyme submodule to imporve llvm-cov)
 - #159617 (Fix up `#[linkage]` target checking)
 - #159733 (std: Switch implementations of `thread_local!` for WASI)
 - #159783 (Check unsafe impls on safe EIIs)
 - #159810 (Add tuple never coercion collection regression test)
 - #159821 (Update expect message using the recommended style in binary_heap module)
 - #159826 (Remove redundant `#[rustc_paren_sugar]` feature gate)
 - #159846 (Implement `str::copy_from_str`)
 - #159849 (rustc_parse: Stop returning `Option` from statement parsing)
 - #159853 (Updated expect messages for `CString` struct and method documentation)
 - #159875 (More cleanup in `rustc_attr_parsing`)
 - #159882 (Update expect messages in library/alloc/boxed.rs and library/alloc/string.rs to follow the style guide)
 - #159891 (Split multiline derives into std/rustc macros)
 - #159893 (Fix `find_attr` hygiene and `rustc_hir` cleanups)
 - #159895 (rustc-dev-guide subtree update)
 - #159902 (Clarify that the expected runtime symbols signature is for the current target only)
 - #159914 (Fix error in diagnostic on_unmatched_args)
 - #159917 (spare capacity mut constification)
 - #159918 (rename abort_unwind → abort_on_unwind)
 - #159936 (Minor `rustc_ast::ast` doc cleanups)
 - #159945 (Update expect messages in library/core/src/ptr/non_null.rs)