…=compiler-errors

Remove `synstructure::Structure::underscore_const` calls.

The `synstructure` docs say "This method is a no-op, underscore consts are used by default now." The behaviour change occurred going from `synstructure` version 0.13.0 to 0.13.1.

r? `@SparrowLii`

Rollup of 23 pull requests

Successful merges:

 - rust-lang#139261 (mitigate MSVC alignment issue on x86-32)
 - rust-lang#139307 (std: Add performance warnings to HashMap::get_disjoint_mut)
 - rust-lang#139700 (Autodiff flags)
 - rust-lang#139752 (set subsections_via_symbols for ld64 helper sections)
 - rust-lang#139809 (Don't warn about `v128` in wasm ABI transition)
 - rust-lang#139852 (StableMIR: Implement `CompilerInterface`)
 - rust-lang#139945 (Extend HIR to track the source and syntax of a lifetime)
 - rust-lang#140028 (`deref_patterns`: support string and byte string literals in explicit `deref!("...")` patterns)
 - rust-lang#140139 (rustc_target: Adjust RISC-V feature implication)
 - rust-lang#140143 (Move `sys::pal::os::Env` into `sys::env`)
 - rust-lang#140148 (CI: use aws codebuild for job dist-arm-linux)
 - rust-lang#140150 (fix MAX_EXP and MIN_EXP docs)
 - rust-lang#140172 (Make algebraic functions into `const fn` items.)
 - rust-lang#140177 ([compiletest] Parallelize test discovery)
 - rust-lang#140181 (Remove `synstructure::Structure::underscore_const` calls.)
 - rust-lang#140184 (Update doc of cygwin target)
 - rust-lang#140186 (Rename `compute_x` methods)
 - rust-lang#140187 ([AIX] Handle AIX dynamic library extensions within c-link-to-rust-dylib run-make test)
 - rust-lang#140191 (Remove git repository from git config)
 - rust-lang#140194 (minicore: Have `//@ add-core-stubs` also imply `-Cforce-unwind-tables=yes`)
 - rust-lang#140195 (triagebot: label minicore changes w/ `A-test-infra-minicore` and ping jieyouxu on changes)
 - rust-lang#140202 (Make #![feature(let_chains)] bootstrap conditional in compiler/)
 - rust-lang#140214 (Remove comment about handling non-global where bounds with corresponding projection)

r? `@ghost`
`@rustbot` modify labels: rollup

…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#134446 (Stabilize the `cell_update` feature)
 - rust-lang#139307 (std: Add performance warnings to HashMap::get_disjoint_mut)
 - rust-lang#139450 (Impl new API `std::os::unix::fs::mkfifo` under feature `unix_fifo`)
 - rust-lang#139809 (Don't warn about `v128` in wasm ABI transition)
 - rust-lang#139852 (StableMIR: Implement `CompilerInterface`)
 - rust-lang#139945 (Extend HIR to track the source and syntax of a lifetime)
 - rust-lang#140028 (`deref_patterns`: support string and byte string literals in explicit `deref!("...")` patterns)
 - rust-lang#140181 (Remove `synstructure::Structure::underscore_const` calls.)
 - rust-lang#140232 (Remove unnecessary clones)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of rust-lang#140181 - nnethercote:rm-underscore_const, r=compiler-errors

Remove `synstructure::Structure::underscore_const` calls.

The `synstructure` docs say "This method is a no-op, underscore consts are used by default now." The behaviour change occurred going from `synstructure` version 0.13.0 to 0.13.1.

r? ``@SparrowLii``