Rename path_str -> ori_link in anchor_failure

ori_link contains anchors, path_str does not. It's important that
anchor_failure be passed a link with the anchors still present.

src/librustdoc/passes/collect_intra_doc_links.rs

@@ -2005,16 +2005,16 @@ fn split(path: &str) -> Option<(&str, &str)> {
 fn anchor_failure(
     cx: &DocContext<'_>,
     item: &Item,
-    path_str: &str,
+    ori_link: &str,
     dox: &str,
     link_range: Range<usize>,
     failure: AnchorFailure,
 ) {
     let msg = match failure {
-        AnchorFailure::MultipleAnchors => format!("`{}` contains multiple anchors", path_str),
+        AnchorFailure::MultipleAnchors => format!("`{}` contains multiple anchors", ori_link),
         AnchorFailure::RustdocAnchorConflict(res) => format!(
             "`{}` contains an anchor, but links to {kind}s are already anchored",
-            path_str,
+            ori_link,
             kind = res.descr(),
         ),
     };