Rollup merge of #82563 - lucas-deangelis:issue-82209-fix, r=jyn514

Fix intra-doc handling of `Self` in enum

Fixes #82209

src/librustdoc/passes/collect_intra_doc_links.rs

@@ -838,6 +838,14 @@ fn fold_item(&mut self, mut item: Item) -> Option<Item> {
         debug!("looking for the `Self` type");
         let self_id = if item.is_fake() {
             None
+        // Checking if the item is a field in an enum variant
+        } else if (matches!(self.cx.tcx.def_kind(item.def_id), DefKind::Field)
+            && matches!(
+                self.cx.tcx.def_kind(self.cx.tcx.parent(item.def_id).unwrap()),
+                DefKind::Variant
+            ))
+        {
+            self.cx.tcx.parent(item.def_id).and_then(|item_id| self.cx.tcx.parent(item_id))
         } else if matches!(
             self.cx.tcx.def_kind(item.def_id),
             DefKind::AssocConst

src/test/rustdoc/intra-doc/issue-82209.rs

@@ -0,0 +1,11 @@
+#![crate_name = "foo"]
+#![deny(broken_intra_doc_links)]
+pub enum Foo {
+    Bar {
+        abc: i32,
+        /// [Self::Bar::abc]
+        xyz: i32,
+    },
+}
+
+// @has foo/enum.Foo.html '//a/@href' '../foo/enum.Foo.html#variant.Bar.field.abc'