chore(package): run scripts/download-flow-libs with babel-node again

Author: motiz88

.babelrc

@@ -1,6 +1,6 @@
 {
   "presets": ["es2015-node4"],
-  "plugins": ["syntax-flow", "syntax-class-properties", "transform-class-properties", "transform-flow-strip-types"],
+  "plugins": ["syntax-flow", "syntax-class-properties", "transform-class-properties", "transform-flow-strip-types", "transform-async-to-generator"],
   "env": {
     "development": {
       "sourceMaps": true

package.json

@@ -18,7 +18,7 @@
     "clean": "shx rm -rf lib",
     "coverage:codecov": "nyc report --reporter=text-lcov > coverage.lcov",
     "coverage:html": "nyc report --reporter=html",
-    "download-flow-libs": "cross-env NODE_ENV=production async-node --harmony-destructuring scripts/download-flow-libs",
+    "download-flow-libs": "cross-env NODE_ENV=production babel-node scripts/download-flow-libs",
     "eslint:xunit-to-file": "envcheck ESLINT_FILE && compat \"npm run eslint -- --quiet -f junit --output-file $ESLINT_FILE\"",
     "eslint": "eslint *.js src test decls scripts benchmarks",
     "example": "npm run build && babel example/input.js -o example/output.js",
@@ -36,13 +36,13 @@
     "test": "npm run test:ci"
   },
   "devDependencies": {
-    "async-to-gen": "^1.1.0",
     "babel-cli": "^6.9.0",
     "babel-eslint": "^6.1.2",
     "babel-plugin-istanbul": "^1.0.2",
     "babel-plugin-syntax-class-properties": "^6.13.0",
     "babel-plugin-syntax-flow": "^6.13.0",
     "babel-plugin-syntax-jsx": "^6.13.0",
+    "babel-plugin-transform-async-to-generator": "^6.8.0",
     "babel-plugin-transform-class-properties": "^6.11.5",
     "babel-plugin-transform-flow-strip-types": "^6.14.0",
     "babel-preset-es2015-node4": "^2.1.0",

scripts/download-flow-libs.js

@@ -1,7 +1,7 @@
-const request = require('request');
-const path = require('path');
-const fs = require('fs-promise');
-const pkgBabelTypes = require('babel-types/package.json');
+import request from 'request';
+import path from 'path';
+import fs from 'fs-promise';
+import pkgBabelTypes from 'babel-types/package.json';
 
 const {version} = pkgBabelTypes;