syntax_data: {"ast_node_type":"other","tokens":[{"end":26,"kind":"keyword","start":0,"text":"Ok(Vec::new())"}]}
source_snippet:             Ok(Vec::new())
context_before:             debug!("drop_tys_helper: `{:?}` is manually drop", adt_def);
context_after:         } else if let Some(dtor_info) = adt_has_dtor(adt_def) {