fix(stark-build): ignore 'System.import()' messages due to @angular/core

packages/stark-build/config/webpack.common.js

@@ -9,7 +9,6 @@ const commonData = require("./webpack.common-data.js"); // common configuration
  *
  * problem with copy-webpack-plugin
  */
-// const DefinePlugin = require("webpack/lib/DefinePlugin");
 const CopyWebpackPlugin = require("copy-webpack-plugin");
 const HtmlWebpackPlugin = require("html-webpack-plugin");
 const BaseHrefWebpackPlugin = require("base-href-webpack-plugin").BaseHrefWebpackPlugin;
@@ -139,6 +138,13 @@ module.exports = options => {
 		 */
 		module: {
 			rules: [
+				{
+					// Mark files inside `@angular/core` as using SystemJS style dynamic imports.
+					// Removing this will cause deprecation warnings to appear.
+					test: /[\/\\]@angular[\/\\]core[\/\\].+\.js$/,
+					parser: { system: true },
+				},
+
 				// TODO could we use BuildOptimizer in all environments?
 				// BuildOptimizer should only be used with AOT
 				// see https://github.com/angular/angular-cli/issues/8594