rustdoc: add regression test for #140968

Author: lolbinarycat

tests/rustdoc-js/alias-sort.js

@@ -0,0 +1,10 @@
+// rank doc aliases lower than exact matches
+// regression test for <https://github.com/rust-lang/rust/issues/140968>
+
+const EXPECTED = {
+    'query': 'foobazbar',
+    'others': [
+        { 'name': 'foobazbar' },
+        { 'name': 'foo' },
+    ],
+};

tests/rustdoc-js/alias-sort.rs

@@ -0,0 +1,5 @@
+/// asdf
+pub fn foobazbar() {}
+
+#[doc(alias("foobazbar"))]
+pub fn foo() {}