Auto merge of #131466 - matthiaskrgr:rollup-3qtz83x, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #123951 (Reserve guarded string literals (RFC 3593))
 - #130827 (Library: Rename "object safe" to "dyn compatible")
 - #131383 (Add docs about slicing slices at the ends)
 - #131403 (Fix needless_lifetimes in rustc_serialize)
 - #131417 (Fix methods alignment on mobile)
 - #131449 (Decouple WASIp2 sockets from WasiFd)
 - #131462 (Mention allocation errors for `open_buffered`)

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

1 files changed, 18 insertions, 0 deletions

diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs
index dade3912751..124975f67f1 100644
--- a/compiler/rustc_parse/src/errors.rs
+++ b/compiler/rustc_parse/src/errors.rs
@@ -2111,6 +2111,24 @@ pub(crate) enum UnknownPrefixSugg {
 }
 
 #[derive(Diagnostic)]
+#[diag(parse_reserved_string)]
+#[note]
+pub(crate) struct ReservedString {
+    #[primary_span]
+    pub span: Span,
+    #[subdiagnostic]
+    pub sugg: Option<GuardedStringSugg>,
+}
+#[derive(Subdiagnostic)]
+#[suggestion(
+    parse_suggestion_whitespace,
+    code = " ",
+    applicability = "maybe-incorrect",
+    style = "verbose"
+)]
+pub(crate) struct GuardedStringSugg(#[primary_span] pub Span);
+
+#[derive(Diagnostic)]
 #[diag(parse_too_many_hashes)]
 pub(crate) struct TooManyHashes {
     #[primary_span]