swc/crates/swc_ecma_parser/tests/tsc/restParameterInDownlevelGenerator.ts

// @target: es5
// @lib: es2015
// @downlevelIteration: true
// @noEmitHelpers: true

// https://github.com/Microsoft/TypeScript/issues/30653
function * mergeStringLists(...strings: string[]) {
    for (var str of strings);
}