{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"//"}]}
            // Deref patterns on boxes are lowered using a built-in deref.
        match self.cx.typeck_results().deref_pat_borrow_mode(base_place.place.ty(), inner) {
            hir::ByRef::No => self.cat_deref(hir_id, base_place),