resolve: Future proof derive helper attributes
Derive helpers no longer require going through recovery mode (fixes https://github.com/rust-lang/rust/issues/53481).
They also report an error if they are ambiguous with any other macro in scope, so we can resolve the question about their exact priority sometime later (cc https://github.com/rust-lang/rust/issues/52226).
Previously the code below would not be guaranteed to exit when the first
spawned thread took the `return, // already unparked` path because there
was no write to synchronize with a read in `park`.
```
use std::sync::atomic::{AtomicBool, Ordering};
use std:🧵:{current, spawn, park};
static FLAG: AtomicBool = AtomicBool::new(false);
fn main() {
let thread_0 = current();
spawn(move || {
FLAG.store(true, Ordering::Relaxed);
thread_0.unpark();
});
let thread_0 = current();
spawn(move || {
thread_0.unpark();
});
while !FLAG.load(Ordering::Relaxed) {
park();
}
}
```
Rollup of 15 pull requests
Successful merges:
- #52514 (Fix a few AMDGPU related issues)
- #53703 (Document .0 to unpack integer from Wrapping)
- #53777 (Implemented map_or_else for Result<T, E>)
- #54031 (A few cleanups and minor improvements to rustc_passes)
- #54046 (Update documentation for fill_buf in std::io::BufRead)
- #54064 (`&CStr`, not `CStr`, is the counterpart of `&str`)
- #54072 (Stabilization change for mod.rs)
- #54073 (docs: Use dollar sign for all bash prompts)
- #54074 (simplify ordering for Kind)
- #54085 (Remove documentation about proc_macro being bare-bones)
- #54087 (rustdoc: Remove generated blanket impls from trait pages)
- #54106 (Reexport CheckLintNameResult)
- #54107 (Fix typos in libstd hash map)
- #54136 (Update LLVM to fix GlobalISel dbg.declare)
- #54142 (Recover proper regression test for issue #16278.)
Failed merges:
r? @ghost
Fix typos in libstd hash map
modified growth algo description to read "the first table overflows into the second, and the second into the first." plus smaller typos
rustdoc: Remove generated blanket impls from trait pages
#53801 only deduped the generated blanket impls but they shouldn't be displayed at all because the original blanket impl is already in the "Implementors" section. This also removes the impls from the sidebar.
Fixes#53689
r? @QuietMisdreavus
Remove documentation about proc_macro being bare-bones
A large chunk of useful API surface area is stabilizing in Rust 1.29. We no longer have a commitment to expand the API over time as much as implied by these comments.
r? @alexcrichton
