Auto merge of #108488 - matthiaskrgr:rollup-i61epcw, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #107941 (Treat `str` as containing `[u8]` for auto trait purposes)
 - #108299 (Require `literal`s for some `(u)int_impl!` parameters)
 - #108337 (hir-analysis: make a helpful note)
 - #108379 (Add `ErrorGuaranteed` to `hir::{Expr,Ty}Kind::Err` variants)
 - #108418 (Replace parse_[sth]_expr with parse_expr_[sth] function names)
 - #108424 (rustc_infer: Consolidate obligation elaboration de-duplication)
 - #108475 (Fix `VecDeque::shrink_to` and add tests.)
 - #108482 (statically guarantee that current error codes are documented)
 - #108484 (Remove `from` lang item)

Failed merges:

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

1 files changed, 2 insertions, 18 deletions

diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
index edec8cce92f..cbf595089cc 100644
--- a/compiler/rustc_errors/src/lib.rs
+++ b/compiler/rustc_errors/src/lib.rs
@@ -42,7 +42,7 @@ pub use rustc_error_messages::{
 pub use rustc_lint_defs::{pluralize, Applicability};
 use rustc_macros::fluent_messages;
 use rustc_span::source_map::SourceMap;
-use rustc_span::HashStableContext;
+pub use rustc_span::ErrorGuaranteed;
 use rustc_span::{Loc, Span};
 
 use std::borrow::Cow;
@@ -1477,9 +1477,7 @@ impl HandlerInner {
                 .emitted_diagnostic_codes
                 .iter()
                 .filter_map(|x| match &x {
-                    DiagnosticId::Error(s)
-                        if registry.try_find_description(s).map_or(false, |o| o.is_some()) =>
-                    {
+                    DiagnosticId::Error(s) if registry.try_find_description(s).is_ok() => {
                         Some(s.clone())
                     }
                     _ => None,
@@ -1846,17 +1844,3 @@ pub enum TerminalUrl {
     Yes,
     Auto,
 }
-
-/// Useful type to use with `Result<>` indicate that an error has already
-/// been reported to the user, so no need to continue checking.
-#[derive(Clone, Copy, Debug, Encodable, Decodable, Hash, PartialEq, Eq, PartialOrd, Ord)]
-#[derive(HashStable_Generic)]
-pub struct ErrorGuaranteed(());
-
-impl ErrorGuaranteed {
-    /// To be used only if you really know what you are doing... ideally, we would find a way to
-    /// eliminate all calls to this method.
-    pub fn unchecked_claim_error_was_emitted() -> Self {
-        ErrorGuaranteed(())
-    }
-}