Decrease the Ns of bug loops to a smaller N, which
makes them a lot faster in miri.

In this case, it seems fine to have the field be the inverse of the
flag, especially the `enable` vs `disable` terminology is clear.

Cache DWARF objects alongside object files in work products when those
exist so that DWARF object files are available for thorin in packed mode
in incremental scenarios.

Signed-off-by: David Wood <david.wood@huawei.com>

Compiling with `-Csplit-debuginfo=packed` was leaving behind `.dwo`
files because either the metadata or allocator module contained a DWARF
object which was not being removed by the
`maybe_remove_temps_from_module` closure.

This should have been here from the start... oops. When `thorin` fails
to package a DWARF package, that should fail compilation.

There was a problem with storing a `Box<T>` in a struct, where
the current rules would invalidate the value. this makes it store
a raw pointer instead, circumventing the aliasing problems.

…2383)

Examples: NON_ASCII_IDENTS, UNCOMMON_CODEPOINTS, CONFUSABLE_IDENTS, MIXED_SCRIPT_CONFUSABLES

This makes it possible to mutably borrow different fields of the MIR
body without resorting to methods like `basic_blocks_local_decls_mut_and_var_debug_info`.

To preserve validity of control flow graph caches in the presence of
modifications, a new struct `BasicBlocks` wraps together basic blocks
and control flow graph caches.

The `BasicBlocks` dereferences to `IndexVec<BasicBlock, BasicBlockData>`.
On the other hand a mutable access requires explicit `as_mut()` call.

…n, r=Icnr

Fix ProjectionElem validation

`TypeChecker::visit_projection_elem` was not actually being called.

…iser

Improve soundness of rustc_arena

Make it runnable in miri by changing the loop iteration count for some tests in miri. Also fix a stacked borrows issue with box.

…n-magic, r=wesleywiser

Finishing touches for `#[expect]` (RFC 2383)

This PR adds documentation and some functionality to rustc's lint passes, to manually fulfill expectations. This is needed for some lints in Clippy. Hopefully, it should be one of the last things before we can move forward with stabilizing this feature.

As part of this PR, I've also updated `clippy::duplicate_mod` to showcase how this new functionality can be used and to ensure that it works correctly.

---

changelog: [`duplicate_mod`]: Fixed lint attribute interaction

r? `@wesleywiser`

cc: rust-lang#97660, rust-lang#85549

And I guess that's it. Here have a magical unicorn 🦄

rustdoc: Cleanup more FIXMEs

r? `@GuillaumeGomez`

…uct, r=michaelwoerister

incr: cache dwarf objects in work products

Cache DWARF objects alongside object files in work products when those exist so that DWARF object files are available for thorin in packed mode in incremental scenarios.

r? `@michaelwoerister`

Make MIR basic blocks field public

This makes it possible to mutably borrow different fields of the MIR
body without resorting to methods like `basic_blocks_local_decls_mut_and_var_debug_info`.

To preserve validity of control flow graph caches in the presence of
modifications, a new struct `BasicBlocks` wraps together basic blocks
and control flow graph caches.

The `BasicBlocks` dereferences to `IndexVec<BasicBlock, BasicBlockData>`.
On the other hand a mutable access requires explicit `as_mut()` call.

…s, r=notriddle

Remove (unused) inherent impl anchors

This is something `@notriddle` realized a few days ago: we have unused anchors in the DOM.

This PR removes them.

You can test it [here](https://rustdoc.crud.net/imperio/inherent-impl-anchors/foo/index.html).

r? `@notriddle`

…ts, r=Dylan-DPC

 Edit `rustc_mir_dataflow::framework` documentation

Some edits for clarity and consistency.