Auto merge of #143267 - matthiaskrgr:rollup-suvzar6, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang/rust#143125 (Disable f16 on Aarch64 without neon for llvm < 20.1.1)
 - rust-lang/rust#143156 (inherit `#[align]` from trait method prototypes)
 - rust-lang/rust#143178 (rustdoc default faviocon)
 - rust-lang/rust#143234 (Replace `ItemCtxt::report_placeholder_type_error` match with a call to `TyCtxt::def_descr`)
 - rust-lang/rust#143245 (mbe: Add tests and restructure metavariable expressions)
 - rust-lang/rust#143257 (Upgrade dependencies in run-make-support)
 - rust-lang/rust#143263 (linkify CodeSuggestion in doc comments)
 - rust-lang/rust#143264 (fix: Emit suggestion filename if primary diagnostic span is dummy)

Failed merges:

 - rust-lang/rust#143251 (bootstrap: add build.tidy-extra-checks option)

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

2 files changed, 5 insertions, 3 deletions

diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index 8da7cdd9358..fe9797026de 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -1005,7 +1005,7 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
     /// * may look like "to do xyz, use" or "to do xyz, use abc"
     /// * may contain a name of a function, variable, or type, but not whole expressions
     ///
-    /// See `CodeSuggestion` for more information.
+    /// See [`CodeSuggestion`] for more information.
     #[rustc_lint_diagnostics]
     pub fn span_suggestion(
         &mut self,
@@ -1166,7 +1166,7 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
     /// Prints out a message with a suggested edit of the code. If the suggestion is presented
     /// inline, it will only show the message and not the suggestion.
     ///
-    /// See `CodeSuggestion` for more information.
+    /// See [`CodeSuggestion`] for more information.
     #[rustc_lint_diagnostics]
     pub fn span_suggestion_short(
         &mut self,
diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs
index e333de4b660..3f5872f34a6 100644
--- a/compiler/rustc_errors/src/emitter.rs
+++ b/compiler/rustc_errors/src/emitter.rs
@@ -2078,7 +2078,9 @@ impl HumanEmitter {
                 // file name, saving in verbosity, but if it *isn't* we do need it, otherwise we're
                 // telling users to make a change but not clarifying *where*.
                 let loc = sm.lookup_char_pos(parts[0].span.lo());
-                if loc.file.name != sm.span_to_filename(span) && loc.file.name.is_real() {
+                if (span.is_dummy() || loc.file.name != sm.span_to_filename(span))
+                    && loc.file.name.is_real()
+                {
                     // --> file.rs:line:col
                     //  |
                     let arrow = self.file_start();