Add test to ensure rustdoc does not panic on intra doc link pass

Author: GuillaumeGomez

src/test/rustdoc/issue-95633.rs

@@ -0,0 +1,7 @@
+// compile-flags: --document-private-items
+
+// This ensures that no ICE is triggered when rustdoc is run on this code.
+
+mod stdlib {
+    pub (crate) use std::i8;
+}