{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"BodyOwnerKind::Closure"}]}
            BodyOwnerKind::Closure | BodyOwnerKind::Fn => {
        match tcx.hir_body_owner_kind(self.mir_def) {
                let defining_ty = tcx.type_of(self.mir_def).instantiate_identity();