{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"let"}]}
                let ty_iter = subst.iter(Interner).map(|ga| ga.assert_ty_ref(Interner).clone());
                let layout = self.layout(&self_ty)?;
                self.exec_clone_for_fields(ty_iter, layout, addr, def, locals, destination, span)?;