[ESNext] Implement DynamicImportCall

test/mjsunit/harmony/modules-import-4.js

Index: test/mjsunit/harmony/modules-import-4.js
diff --git a/test/mjsunit/harmony/modules-import-4.js b/test/mjsunit/harmony/modules-import-4.js
new file mode 100644
index 0000000000000000000000000000000000000000..38a80b30e8fc3574c37dd9d1456572935ea63400
--- /dev/null
+++ b/test/mjsunit/harmony/modules-import-4.js
@@ -0,0 +1,13 @@
+// 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: --harmony-dynamic-import
+
+try {
+  import(x);
+  let x;
+  assertUnreachable();
+} catch(e) {
+  assertEquals("ReferenceError", e.name);
+}