Rollup of 6 pull requests #122653

if this ought to be broken it should at least happen intentionally

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

Co-authored-by: Urgau <3616612+Urgau@users.noreply.github.com> Co-authored-by: Michael Howell <michael@notriddle.com>

Mark UEFI std support as WIP Currently stdio and alloc support is present with open PRs for some of the other portions. A prototype of almost all of std support can be found [here](https://github.com/tianocore/rust/tree/uefi-master). I will be up-streaming as much stuff as possible from there.

…mulacrum Add release notes for 1.77.0 cc `@rust-lang/release` r? `@Mark-Simulacrum`

…fJung add test for rust-lang#122301 to cover behavior that's on stable If this ought to be broken it should at least happen intentionally See rust-lang#122301

Only invoke `decorate` if the diag can eventually be emitted Lints can call [`trimmed_def_paths`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/print/fn.trimmed_def_paths.html#), such as through manual implementations of `LintDiagnostic` and calling `def_path_str`. https://github.com/rust-lang/rust/blob/05a2be3def211255dc7640b006ac10f0f02baf5c/compiler/rustc_lint/src/lints.rs#L1834-L1839 The emission of a lint eventually relies on [`TyCtxt::node_lint`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/context/struct.TyCtxt.html#method.node_lint), which has a `decorate` closure which is responsible for decorating the diagnostic with "lint stuff". `node_lint` in turn relies on [`lint_level`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/lint/fn.lint_level.html). Within `lint_level`, `decorate` is eventually called just before `Diag::emit` is called to decorate the diagnostic. However, if `-A warnings` or `--cap-lint=allow` are set, or if the unused_must_use lint is explicitly allowed, then `decorate` would be called, which would call `def_path_str`, but the diagnostic would never be emitted and hence would trigger the `must_produce_diag` ICE. To avoid calling `decorate` when we don't eventually emit the diagnostic, we check that: - if `--force-warn` is specified, then call `decorate`; otherwise - if we can emit warnings (or higher), then call `decorate`. Fixes rust-lang#121774.

Mention Zalathar for coverage changes Hopefully I don't regret all the extra notifications. 🤞

…rors some minor code simplifications

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Rollup of 6 pull requests #122653

Rollup of 6 pull requests #122653

Commits on Mar 17, 2024