{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
                    // `other_struct` itself. See `coerce-in-base-expr.rs`.
                    // This is important to allow coercions to happen in
                    let fresh_base_ty = Ty::new_adt(self.tcx, *adt, fresh_args);