[babel] configure babel to use native generators in node

Gruntfile.js

@@ -1,4 +1,4 @@
-require('babel/register')(require('./src/optimize/babelOptions'));
+require('babel/register')(require('./src/optimize/babelOptions').node);
 
 module.exports = function (grunt) {
   // set the config once before calling load-grunt-config

src/cli/index.build.js

@@ -6,7 +6,7 @@ var babelOpts = _.defaults({
     fromRoot('src'),
     /[\\\/](node_modules|bower_components)[\\\/]/
   ]
-}, require('../optimize/babelOptions'));
+}, require('../optimize/babelOptions').node);
 
 require('babel/register')(babelOpts);
 require('./cli');

src/cli/index.js

@@ -1,2 +1,2 @@
-require('babel/register')(require('../optimize/babelOptions'));
+require('babel/register')(require('../optimize/babelOptions').node);
 require('./cli');

src/optimize/BaseOptimizer.js

@@ -114,7 +114,7 @@ class BaseOptimizer {
             test: /\.js$/,
             exclude: babelExclude.concat(this.env.noParse),
             loader: 'babel',
-            query: babelOptions
+            query: babelOptions.webpack
           },
           {
             test: /\.jsx$/,
@@ -122,7 +122,7 @@ class BaseOptimizer {
             loader: 'babel',
             query: defaults({
               nonStandard: true,
-            }, babelOptions)
+            }, babelOptions.webpack)
           }
         ].concat(this.env.loaders),
         postLoaders: this.env.postLoaders || [],

src/optimize/babelOptions.js

@@ -1,4 +1,10 @@
-module.exports = {
+exports.webpack = {
   stage: 1,
-  nonStandard: false
+  nonStandard: false,
+  optional: ['runtime']
 };
+
+exports.node = Object.assign({}, exports.webpack, {
+  optional: ['runtime', 'asyncToGenerator'],
+  blacklist: ['regenerator']
+});

tasks/config/babel.js

@@ -3,9 +3,7 @@ let babelOptions = require('requirefrom')('src')('optimize/babelOptions');
 
 module.exports = {
   build: {
-    options: defaults({
-      optional: ['runtime']
-    }, babelOptions),
+    options: babelOptions.node,
     src: [
       'build/kibana/**/*.js',
       '!**/public/**',