[ESNext] Implement DynamicImportCall

test/mjsunit/harmony/modules-skip-5.js

+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --harmony-dynamic-import
+
+var dynamic_life;
+
+import * as static_life from 'modules-skip-1.js';
+import * as relative_static_life from './modules-skip-1.js';
+import('modules-skip-1.js').then(namespace => dynamic_life = namespace);
+
+export { static_life };
+export { relative_static_life };
+export { dynamic_life };