`std::os::fd` defines types like `OwnedFd` and `RawFd` and is common
between Unix and non-Unix platforms that share a basic file-descriptor
concept. Rust currently uses this internally to simplify its own code,
but it would be useful for external users in the same way, so make it
public.

This means that `OwnedFd` etc. will all appear in three places, for
example on unix platforms:
 - `std::os::fd::OwnedFd`
 - `std::os::unix::io::OwnedFd`
 - `std::os::unix::prelude::OwnedFd`

Add `#[unstable(feature = "os_fd", issue = "98699")]` to the new
`pub use` declarations.

`__heap_base` and `__data_end` are exported for use by wasm-bindgen, which
uses the wasm32-unknown-unknown target. On wasm32-wasi, as a step toward
implementing the Canonical ABI, and as an aid to building speicalized WASI
API polyfill wrappers, don't export `__heap_base` and `__data_end` on
wasm32-wasi.

In rust-lang#102306, `rustc_typeck` was renamed to `rustc_hir_analysis` but the
diagnostic resources were not renamed - which is what this commit
changes.

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

…r=joshtriplett

Make `std::os::fd` public.

`std::os::fd` defines types like `OwnedFd` and `RawFd` and is common
between Unix and non-Unix platforms that share a basic file-descriptor
concept. Rust currently uses this internally to simplify its own code,
but it would be useful for external users in the same way, so make it
public.

This means that `OwnedFd` etc. will all appear in three places, for
example on unix platforms:
 - `std::os::fd::OwnedFd`
 - `std::os::unix::io::OwnedFd`
 - `std::os::unix::prelude::OwnedFd`

r? ``@joshtriplett``

Code refactoring smart_resolve_report_errors

`smart_resolve_report_errors` https://github.com/rust-lang/rust/blob/4ecfdfac51b159f68fce608792affb34a70e6f73/compiler/rustc_resolve/src/late/diagnostics.rs#L143
is almost 600 lines of code, we should do some code refactoring.

…ckh726

Fix associated type bindings with anon const in GAT position

The first commit formats `type_of.rs`, which is really hard to maintain since it uses a bunch of features like `let`-chains and `if let` match arm bindings. Best if you just review the second two diffs.

Fixes rust-lang#102333

…port-heap-base, r=davidtwco

Don't export `__heap_base` and `__data_end` on wasm32-wasi.

`__heap_base` and `__data_end` are exported for use by wasm-bindgen, which uses the wasm32-unknown-unknown target. On wasm32-wasi, as a step toward implementing the Canonical ABI, and as an aid to building speicalized WASI API polyfill wrappers, don't export `__heap_base` and `__data_end` on wasm32-wasi.

…issue-94923, r=JohnTitor

Add regression test for issue 94923

Fixes rust-lang#94923

…k, r=estebank

errors: rename `typeck.ftl` to `hir_analysis.ftl`

In rust-lang#102306, `rustc_typeck` was renamed to `rustc_hir_analysis` but the diagnostic resources were not renamed - which is what this pull request changes.