Auto merge of rust-lang#138044 - workingjubilee:rollup-lf771sb, r=workingjubilee

Rollup of 25 pull requests

Successful merges:

 - rust-lang#134063 (dec2flt: Clean up float parsing modules)
 - rust-lang#136581 (Retire the legacy `Makefile`-based `run-make` test infra)
 - rust-lang#136662 (Count char width at most once in `Formatter::pad`)
 - rust-lang#136798 (Added documentation for flushing per rust-lang#74348)
 - rust-lang#137240 (Slightly reformat `std::fs::remove_dir_all` error docs)
 - rust-lang#137303 (Remove `MaybeForgetReturn` suggestion)
 - rust-lang#137327 (Undeprecate env::home_dir)
 - rust-lang#137463 ([illumos] attempt to use posix_spawn to spawn processes)
 - rust-lang#137477 (uefi: Add Service Binding Protocol abstraction)
 - rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
 - rust-lang#137569 (Stabilize `string_extend_from_within`)
 - rust-lang#137612 (Update bootstrap to edition 2024)
 - rust-lang#137633 (Only use implied bounds hack if bevy, and use deeply normalize in implied bounds hack)
 - rust-lang#137643 (Add DWARF test case for non-C-like `repr128` enums)
 - rust-lang#137679 (Various coretests improvements)
 - rust-lang#137723 (Make `rust.description` more general-purpose and pass `CFG_VER_DESCRIPTION`)
 - rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
 - rust-lang#137764 (Ensure that negative auto impls are always applicable)
 - rust-lang#137772 (Fix char count in `Display` for `ByteStr`)
 - rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
 - rust-lang#137805 (adjust Layout debug printing to match the internal field name)
 - rust-lang#137808 (Do not require that unsafe fields lack drop glue)
 - rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
 - rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
 - rust-lang#138028 (compiler: add `ExternAbi::is_rustic_abi`)

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

Author: bors

compiler/rustc_abi/src/extern_abi.rs

@@ -191,6 +191,17 @@ impl StableOrd for ExternAbi {
 }
 
 impl ExternAbi {
+    /// An ABI "like Rust"
+    ///
+    /// These ABIs are fully controlled by the Rust compiler, which means they
+    /// - support unwinding with `-Cpanic=unwind`, unlike `extern "C"`
+    /// - often diverge from the C ABI
+    /// - are subject to change between compiler versions
+    pub fn is_rustic_abi(self) -> bool {
+        use ExternAbi::*;
+        matches!(self, Rust | RustCall | RustIntrinsic | RustCold)
+    }
+
     pub fn supports_varargs(self) -> bool {
         // * C and Cdecl obviously support varargs.
         // * C can be based on Aapcs, SysV64 or Win64, so they must support varargs.

compiler/rustc_abi/src/lib.rs

@@ -1812,7 +1812,7 @@ where
         f.debug_struct("Layout")
             .field("size", size)
             .field("align", align)
-            .field("abi", backend_repr)
+            .field("backend_repr", backend_repr)
             .field("fields", fields)
             .field("largest_niche", largest_niche)
             .field("uninhabited", uninhabited)