Auto merge of #161075 - jhpratt:rollup-sSE7Oua, r=jhpratt

Rollup of 23 pull requests

Successful merges:

 - rust-lang/rust#157428 (allocator: refactor for stabilisation)
 - rust-lang/rust#158918 (x86_64-win: Enable f128 on LLVM 23+)
 - rust-lang/rust#160077 (Don't compute FnAbi for LLVM intrinsics)
 - rust-lang/rust#160288 (rustdoc: use anonymous constant for primitives/keywords/attribute docs)
 - rust-lang/rust#160440 (Couple of misc improvements to the unwind infrastructure)
 - rust-lang/rust#160896 (tidy: Update Python version requirements to 3.11)
 - rust-lang/rust#160972 (std: map ERROR_NEGATIVE_SEEK to ErrorKind::InvalidInput on Windows)
 - rust-lang/rust#160984 (Fix ICE on { _ } const args in bodies by tracking const-only infer args)
 - rust-lang/rust#161036 (Use `with_types_for_suggestion!` in `write_struct_like()`)
 - rust-lang/rust#161037 (std: don't clean up the main thread's altstack)
 - rust-lang/rust#161040 (Optimize CStr backing slice bounds checks)
 - rust-lang/rust#161065 (core: Fix a typo in funnel shift documentation)
 - rust-lang/rust#158885 (Add `core::num::Complex`)
 - rust-lang/rust#160928 (check `mut`-restriction when tuple constructor is used as a value)
 - rust-lang/rust#160969 (give layout errors from `size_of_val` and `align_of_val` a span)
 - rust-lang/rust#161002 (disallow `#[cold]` on `extern "custom"` functions)
 - rust-lang/rust#161016 (Fix invalid suggestion from try unlabled block)
 - rust-lang/rust#161020 (io: Use `NonNull` for all `Custom` API related to `Box`, update documentation for `Custom`)
 - rust-lang/rust#161044 (rustc-dev-guide subtree update)
 - rust-lang/rust#161046 (Enable unrolling feature of bors)
 - rust-lang/rust#161054 (rustdoc: Fix link title attribute value when field of enum variants)
 - rust-lang/rust#161055 (`offload!` function-like macro)
 - rust-lang/rust#161064 (Revert "riscv: promote d, e, and f target_features to CfgStableToggleUnstable")