{"ast_node_type":"struct","tokens":[{"end":54,"kind":"keyword","start":0,"text":"//"}]}
                // Check for tuple struct constructor.
                ExprKind::Path(..) => lower_ctx.extract_unit_struct_path(lhs).is_none(),
                ExprKind::Call(callee, ..) => lower_ctx.extract_tuple_struct_path(callee).is_none(),