Auto merge of #97980 - Dylan-DPC:rollup-l8exe4b, r=Dylan-DPC

Rollup of 6 pull requests

Successful merges:

 - #96868 (Stabilize explicit_generic_args_with_impl_trait)
 - #97703 (some additional `need_type_info.rs` cleanup)
 - #97812 (Suggest to swap a struct and a trait in trait impls)
 - #97958 (ExitStatus docs fixups)
 - #97967 (Mention `infer::Trace` methods on `infer::At` methods' docs)
 - #97972 (Update #[doc(html_playground_url)] documentation to mention what the request will be)

Failed merges:

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

compiler/rustc_span/src/lib.rs

@@ -333,7 +333,7 @@ impl<'a> FileNameDisplay<'a> {
     pub fn to_string_lossy(&self) -> Cow<'a, str> {
         match self.inner {
             FileName::Real(ref inner) => inner.to_string_lossy(self.display_pref),
-            _ => Cow::from(format!("{}", self)),
+            _ => Cow::from(self.to_string()),
         }
     }
 }