fix(NA): babel 7 polyfill in the tests bundle.

packages/kbn-plugin-helpers/lib/utils.js

@@ -25,7 +25,7 @@ function babelRegister() {
   const plugin = pluginConfig();
 
   try {
-    // add support for moved babel-register source: https://github.com/elastic/kibana/pull/13973
+    // add support for moved @babel/register source: https://github.com/elastic/kibana/pull/13973
     require(resolve(plugin.kibanaRoot, 'src/setup_node_env/babel_register')); // eslint-disable-line import/no-dynamic-require
   } catch (error) {
     if (error.code === 'MODULE_NOT_FOUND') {

src/legacy/core_plugins/tests_bundle/tests_entry_template.js

@@ -30,7 +30,7 @@ export const createTestEntryTemplate = (defaultUiSettings) => (bundle) => `
  */
 
 // import global polyfills before everything else
-import 'babel-polyfill';
+import '@babel/polyfill';
 import 'custom-event-polyfill';
 import 'whatwg-fetch';
 import 'abortcontroller-polyfill';

src/setup_node_env/babel_register/polyfill.js

@@ -21,7 +21,7 @@
 // statement into a list of import statements based on the polyfills
 // necessary for our target environment (the current version of node)
 // but since it does that during compilation, `import '@babel/polyfill'`
-// must be in a file that is loaded with `require()` AFTER `babel-register`
+// must be in a file that is loaded with `require()` AFTER `@babel/register`
 // is configured.
 //
 // This is why we have this single statement in it's own file and require

src/setup_node_env/babel_register/register.js

@@ -25,7 +25,7 @@ if (!process.env.BABEL_CACHE_PATH) {
   process.env.BABEL_CACHE_PATH = resolve(__dirname, '../../../optimize/.babelcache.json');
 }
 
-// paths that babel-register should ignore
+// paths that @babel/register should ignore
 var ignore = [
   /\/bower_components\//,
   /\/kbn-pm\/dist\//,

x-pack/plugins/monitoring/README.md

@@ -32,7 +32,7 @@ Drawer.
 Add a `debugger` line to create a breakpoint, and then:
 
   ```
-  gulp sync && mocha debug --compilers js:babel-register /pathto/kibana/plugins/monitoring/pathto/__tests__/testfile.js
+  gulp sync && mocha debug --compilers js:@babel/register /pathto/kibana/plugins/monitoring/pathto/__tests__/testfile.js
   ```
 
 ## Multicluster Setup for Development

x-pack/plugins/searchprofiler/README.md

@@ -19,7 +19,7 @@ If you have installed this somewhere other than via x-plugins, and next to the k
 To run the server tests, change into `x-plugins/kibana` and run:
 
 ```bash
-mocha --debug --compilers js:babel/register plugins/profiler/**/__tests__/**/*.js
+mocha --debug --compilers js:@babel/register plugins/profiler/**/__tests__/**/*.js
 ```