test: ignore eslint since for...in is the best choice

Author: Wayne Mao

README.md

@@ -34,7 +34,7 @@ I summarized all the loop/iterators related APIs here:
 
 ### ES5
 
-- [`for...break`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for)
+- [`classic for loop`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for)
 - [`for...in`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...in)
 - [`Array.prototype.forEach()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach)  
    为 Array 对象引入了 Array.forEach 方法以代替 for 循环，Array.forEach 方法的特点是自带闭包，以解决因为缺乏块级作用域导致需要使用取巧的方法来解决 var 的作用域问题。

src/TestLoop.js

@@ -290,7 +290,7 @@ if (false) {
 
 /*
 	Async calls in sequence
-	Best Choice: for...of
+	Best Choice: for...of or classic for loop
 
 	Async calls in parallel
 	Best Choice: .map()
@@ -311,6 +311,7 @@ if (false) {
 }
 
 async function asyncForIn(testArr) {
+	// eslint-disable-next-line no-restricted-syntax
 	for (let x of testArr) {
 		console.log(`forIn's ${x} starts at ${currentDateString()}`);
 		await asyncPrint(x);