{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"assert_eq!(nonnull_ptr.layout().fields.count(),"}]}
                assert_eq!(nonnull_ptr.layout().fields.count(), 1);
                // ... that contains a `NonNull`... (gladly, only a single field here)
                let raw_ptr = self.ecx().project_field(&nonnull_ptr, FieldIdx::ZERO)?; // the actual raw ptr