fix(babel): switch to esm from repo and fix babel usage

Author: zkat

lib/node/extensions.js

@@ -8,25 +8,31 @@ function overrideNode () {
 
   let babel
 
+  let reactPlugin
   Module._extensions['.jsx'] = (module, filename) => {
     const content = fs.readFileSync(filename, 'utf8')
     if (!babel) { babel = require('babel-core') }
+    if (!reactPlugin) {
+      reactPlugin = require('babel-plugin-transform-react-jsx')
+    }
     const { code } = babel.transform(content, {
-      plugins: [['transform-react-jsx', {
+      plugins: [[reactPlugin, {
         pragma: 'h',
         useBuiltIns: true
       }]]
     })
     module._compile(code, filename)
   }
 
+  let tsPlugin
   Module._extensions['.ts'] = (module, filename) => {
     const content = fs.readFileSync(filename, 'utf8')
-    if (!babel) { babel = require('typescript') }
-    const { transformed } = babel.transform(content, {
-      plugins: ['transform-typescript']
+    if (!babel) { babel = require('babel-core') }
+    if (!tsPlugin) { tsPlugin = require('babel-plugin-transform-typescript') }
+    const { code } = babel.transform(content, {
+      plugins: [tsPlugin]
     })
-    module._compile(transformed[0], filename)
+    module._compile(code, filename)
   }
   Module._extensions['.tsx'] = Module._extensions['.ts']
 }