通过注释对异步模块的chunk文件命名

example.js

import("./templates/foo" /* webpackChunkName: "chunk-foo" */ ).then(function(foo) {
    console.log('foo:', foo);
})
require.ensure([], function(require) {
    var foo = require("./templates/foo");
    console.log('foo:', foo);
}, "chunk-foo1");
var createContextVar = "r";
import("./templates/ba" + createContextVar /* webpackChunkName: "chunk-bar-baz" */ ).then(function(bar) {
    console.log('bar:', bar);
})