syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"acc.extend(needs_drop_components_with_async(tcx,"}]}
source_snippet:             acc.extend(needs_drop_components_with_async(tcx, elem, asyncness)?);
context_before:         ty::Tuple(fields) => fields.iter().try_fold(SmallVec::new(), move |mut acc, elem| {
context_after:             Ok(acc)