{"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":".discard_err()?;"}]}
                            .discard_err()?;
                            .project_field(&variant_dest, FieldIdx::from_usize(field_index))
                        self.ecx.copy_op(op, &field_dest).discard_err()?;