test: add systemjs+umd integration test (#14196)

This test ensures the `__esModule` is set on UMD bundles, thus making them compatible with SystemJS@^0.22.3.

Followup from https://github.com/frankwallis/plugin-typescript/issues/185.

PR Close #14196

integration/hello_world__systemjs_umd/src/systemjs.config.js

@@ -0,0 +1,45 @@
+(function (global) {
+  SystemJS.typescriptOptions = {
+    "target": "es5",
+    "module": "system",
+    "moduleResolution": "node",
+    "sourceMap": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "noImplicitAny": true,
+    "suppressImplicitAnyIndexErrors": true
+  };
+  System.config({
+    transpiler: 'ts',
+    meta: {
+      'typescript': {
+        "exports": "ts"
+      }
+    },
+    paths: {
+      'npm:': 'node_modules/'
+    },
+    map: {
+      app: 'app',
+      '@angular/core': 'npm:@angular/core/bundles/core.umd.min.js',
+      '@angular/common': 'npm:@angular/common/bundles/common.umd.min.js',
+      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.min.js',
+      '@angular/platform-browser':
+         'npm:@angular/platform-browser/bundles/platform-browser.umd.min.js',
+      '@angular/platform-browser-dynamic':
+         'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.min.js',
+      'rxjs': 'npm:rxjs',
+      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
+      'ts': 'npm:plugin-typescript/lib/plugin.js',
+      'typescript': 'npm:typescript/lib/typescript.js',
+    },
+    packages: {
+      app: {
+        defaultExtension: 'ts'
+      },
+      rxjs: {
+        defaultExtension: 'js'
+      }
+    }
+  });
+})(this);