{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"diag.subdiagnostic(VarHereDenote::Defined"}]}
                diag.subdiagnostic(VarHereDenote::Defined { span: upvar_def_span });
                let upvar_span = upvars_map.get(&def_hir).unwrap().span;
                diag.subdiagnostic(VarHereDenote::Captured { span: upvar_span });