syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"Some(tcx.def_span(tcx.parent(dtor.did)))"}]}
source_snippet:                 Some(tcx.def_span(tcx.parent(dtor.did)))
context_before:             if let Some(dtor) = tcx.adt_destructor(adt_def.did()) {
context_after:             } else {