Migrate to using babel-preset-env. (#627)

* Drop transpilation for IE.

`last 2 versions` will target IE10 and IE11, which we don't support...

* Migrate to using babel-preset-env.

This will lead to less transpilation (e.g. we can use native async/await
now, instead of transpiling).

Author: rwjblue

app/services/ember-cli.js

@@ -511,7 +511,16 @@ export default Ember.Service.extend({
  */
 function babelOpts(moduleName) {
   return {
-    presets: ['es2017'],
+    presets: [['env', {
+      targets: {
+        browsers: [
+          'last 2 chrome versions',
+          'last 2 firefox versions',
+          'last 2 safari versions',
+          'last 2 edge versions'
+        ]
+      }
+    }]],
     moduleIds: true,
     moduleId: moduleName,
     plugins: [

config/targets.js

@@ -2,6 +2,9 @@
 
 module.exports = {
   browsers: [
-    'last 2 versions'
+    'last 2 chrome versions',
+    'last 2 firefox versions',
+    'last 2 safari versions',
+    'last 2 edge versions'
   ]
 };

ember-cli-build.js

@@ -57,6 +57,9 @@ module.exports = function(defaults) {
       },
       'babel-standalone': {
         import: ['babel.js']
+      },
+      'babel-preset-env-standalone': {
+        import: ['babel-preset-env.js']
       }
     },
     sourcemaps: {
@@ -143,7 +146,7 @@ function buildQUnitTree(app) {
   const Rollup = require('broccoli-rollup');
   const path = require('path');
   const babelOpts = require('./lib/babel-opts');
-  
+
   let preprocessJs = app.registry.registry.js[0].toTree;
 
   let buildPreprocessedAddon = function(addonName) {

package.json

@@ -19,6 +19,7 @@
   "devDependencies": {
     "@ember/test-helpers": "~0.7.18",
     "babel-plugin-ember-modules-api-polyfill": "^2.3.0",
+    "babel-preset-env-standalone": "^1.6.2",
     "babel-preset-es2017": "^6.24.1",
     "babel-standalone": "^6.26.0",
     "broccoli-asset-rev": "^2.4.5",

yarn.lock

@@ -722,6 +722,13 @@ babel-plugin-debug-macros@^0.1.10, babel-plugin-debug-macros@^0.1.11:
   dependencies:
     semver "^5.3.0"
 
+babel-plugin-dynamic-import-webpack@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-dynamic-import-webpack/-/babel-plugin-dynamic-import-webpack-1.0.2.tgz#cb83435833e073f1600c0188a95edacfdc07c256"
+  dependencies:
+    babel-plugin-syntax-dynamic-import "^6.18.0"
+    babel-template "^6.26.0"
+
 babel-plugin-ember-modules-api-polyfill@^1.4.2:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-ember-modules-api-polyfill/-/babel-plugin-ember-modules-api-polyfill-1.6.0.tgz#abd1afa4237b3121cb51222f9bf3283cad8990aa"
@@ -796,6 +803,10 @@ babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
 
+babel-plugin-syntax-dynamic-import@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz#8d6a26229c83745a9982a441051572caa179b1da"
+
 babel-plugin-syntax-exponentiation-operator@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
@@ -1019,6 +1030,75 @@ babel-polyfill@^6.26.0:
     core-js "^2.5.0"
     regenerator-runtime "^0.10.5"
 
+babel-preset-env-standalone@^1.6.2:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/babel-preset-env-standalone/-/babel-preset-env-standalone-1.6.2.tgz#c3a386027c5215f7fb1790226c27de5b0eb98212"
+  dependencies:
+    babel-plugin-check-es2015-constants "^6.22.0"
+    babel-plugin-dynamic-import-webpack "^1.0.1"
+    babel-plugin-syntax-trailing-function-commas "^6.22.0"
+    babel-plugin-transform-async-to-generator "^6.22.0"
+    babel-plugin-transform-es2015-arrow-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoping "^6.23.0"
+    babel-plugin-transform-es2015-classes "^6.23.0"
+    babel-plugin-transform-es2015-computed-properties "^6.22.0"
+    babel-plugin-transform-es2015-destructuring "^6.23.0"
+    babel-plugin-transform-es2015-duplicate-keys "^6.22.0"
+    babel-plugin-transform-es2015-for-of "^6.23.0"
+    babel-plugin-transform-es2015-function-name "^6.22.0"
+    babel-plugin-transform-es2015-literals "^6.22.0"
+    babel-plugin-transform-es2015-modules-amd "^6.22.0"
+    babel-plugin-transform-es2015-modules-commonjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-systemjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-umd "^6.23.0"
+    babel-plugin-transform-es2015-object-super "^6.22.0"
+    babel-plugin-transform-es2015-parameters "^6.23.0"
+    babel-plugin-transform-es2015-shorthand-properties "^6.22.0"
+    babel-plugin-transform-es2015-spread "^6.22.0"
+    babel-plugin-transform-es2015-sticky-regex "^6.22.0"
+    babel-plugin-transform-es2015-template-literals "^6.22.0"
+    babel-plugin-transform-es2015-typeof-symbol "^6.23.0"
+    babel-plugin-transform-es2015-unicode-regex "^6.22.0"
+    babel-plugin-transform-exponentiation-operator "^6.22.0"
+    babel-plugin-transform-regenerator "^6.22.0"
+    babel-preset-env "1.6.0"
+
+[email protected]:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.6.0.tgz#2de1c782a780a0a5d605d199c957596da43c44e4"
+  dependencies:
+    babel-plugin-check-es2015-constants "^6.22.0"
+    babel-plugin-syntax-trailing-function-commas "^6.22.0"
+    babel-plugin-transform-async-to-generator "^6.22.0"
+    babel-plugin-transform-es2015-arrow-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoping "^6.23.0"
+    babel-plugin-transform-es2015-classes "^6.23.0"
+    babel-plugin-transform-es2015-computed-properties "^6.22.0"
+    babel-plugin-transform-es2015-destructuring "^6.23.0"
+    babel-plugin-transform-es2015-duplicate-keys "^6.22.0"
+    babel-plugin-transform-es2015-for-of "^6.23.0"
+    babel-plugin-transform-es2015-function-name "^6.22.0"
+    babel-plugin-transform-es2015-literals "^6.22.0"
+    babel-plugin-transform-es2015-modules-amd "^6.22.0"
+    babel-plugin-transform-es2015-modules-commonjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-systemjs "^6.23.0"
+    babel-plugin-transform-es2015-modules-umd "^6.23.0"
+    babel-plugin-transform-es2015-object-super "^6.22.0"
+    babel-plugin-transform-es2015-parameters "^6.23.0"
+    babel-plugin-transform-es2015-shorthand-properties "^6.22.0"
+    babel-plugin-transform-es2015-spread "^6.22.0"
+    babel-plugin-transform-es2015-sticky-regex "^6.22.0"
+    babel-plugin-transform-es2015-template-literals "^6.22.0"
+    babel-plugin-transform-es2015-typeof-symbol "^6.23.0"
+    babel-plugin-transform-es2015-unicode-regex "^6.22.0"
+    babel-plugin-transform-exponentiation-operator "^6.22.0"
+    babel-plugin-transform-regenerator "^6.22.0"
+    browserslist "^2.1.2"
+    invariant "^2.2.2"
+    semver "^5.3.0"
+
 babel-preset-env@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.7.0.tgz#dea79fa4ebeb883cd35dab07e260c1c9c04df77a"
@@ -1905,6 +1985,13 @@ browserify@^16.2.0:
     vm-browserify "^1.0.0"
     xtend "^4.0.0"
 
+browserslist@^2.1.2:
+  version "2.11.3"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-2.11.3.tgz#fe36167aed1bbcde4827ebfe71347a2cc70b99b2"
+  dependencies:
+    caniuse-lite "^1.0.30000792"
+    electron-to-chromium "^1.3.30"
+
 browserslist@^3.1.1, browserslist@^3.2.6:
   version "3.2.8"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-3.2.8.tgz#b0005361d6471f0f5952797a76fc985f1f978fc6"
@@ -2036,6 +2123,10 @@ can-symlink@^1.0.0:
   dependencies:
     tmp "0.0.28"
 
+caniuse-lite@^1.0.30000792:
+  version "1.0.30000856"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000856.tgz#ecc16978135a6f219b138991eb62009d25ee8daa"
+
 caniuse-lite@^1.0.30000844:
   version "1.0.30000850"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000850.tgz#e68a88db4ea598b4c33b8419f7385473e4802495"
@@ -2895,6 +2986,10 @@ [email protected]:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
+electron-to-chromium@^1.3.30:
+  version "1.3.50"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.50.tgz#7438b76f92b41b919f3fbdd350fbd0757dacddf7"
+
 electron-to-chromium@^1.3.47:
   version "1.3.48"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.48.tgz#d3b0d8593814044e092ece2108fc3ac9aea4b900"