Rollup merge of #141648 - GuillaumeGomez:redundant_explicit_links-expansion, r=lolbinarycat

[rustdoc] Do not emit redundant_explicit_links lint if the doc comment comes from expansion

Fixes https://github.com/rust-lang/rust/issues/141553.

The problem was that we change the context for the attributes in some cases to get better error output, preventing us to detect if the attribute comes from expansion. Most of the changes are about keeping track of the "does this span comes from expansion" information.

r? ```@Manishearth```

1 files changed, 4 insertions, 2 deletions

diff --git a/compiler/rustc_resolve/src/rustdoc/tests.rs b/compiler/rustc_resolve/src/rustdoc/tests.rs
index 221ac907e7c..6a98ae06630 100644
--- a/compiler/rustc_resolve/src/rustdoc/tests.rs
+++ b/compiler/rustc_resolve/src/rustdoc/tests.rs
@@ -10,7 +10,7 @@ use super::{DocFragment, DocFragmentKind, source_span_for_markdown_range_inner};
 fn single_backtick() {
     let sm = SourceMap::new(FilePathMapping::empty());
     sm.new_source_file(PathBuf::from("foo.rs").into(), r#"#[doc = "`"] fn foo() {}"#.to_string());
-    let span = source_span_for_markdown_range_inner(
+    let (span, _) = source_span_for_markdown_range_inner(
         &sm,
         "`",
         &(0..1),
@@ -20,6 +20,7 @@ fn single_backtick() {
             kind: DocFragmentKind::RawDoc,
             doc: sym::empty, // unused placeholder
             indent: 0,
+            from_expansion: false,
         }],
     )
     .unwrap();
@@ -32,7 +33,7 @@ fn utf8() {
     // regression test for https://github.com/rust-lang/rust/issues/141665
     let sm = SourceMap::new(FilePathMapping::empty());
     sm.new_source_file(PathBuf::from("foo.rs").into(), r#"#[doc = "⚠"] fn foo() {}"#.to_string());
-    let span = source_span_for_markdown_range_inner(
+    let (span, _) = source_span_for_markdown_range_inner(
         &sm,
         "⚠",
         &(0..3),
@@ -42,6 +43,7 @@ fn utf8() {
             kind: DocFragmentKind::RawDoc,
             doc: sym::empty, // unused placeholder
             indent: 0,
+            from_expansion: false,
         }],
     )
     .unwrap();