Make compilers agree on source position of thrown errors.

test/message/regress/regress-3995.js

Index: test/message/regress/regress-3995.js
diff --git a/test/message/import-eval.js b/test/message/regress/regress-3995.js
similarity index 78%
copy from test/message/import-eval.js
copy to test/message/regress/regress-3995.js
index 8ab35baef672a45d6a449fd328941dc4ff9a00eb..ba84bc096527cc242b9ad43983b42eec0462c43c 100644
--- a/test/message/import-eval.js
+++ b/test/message/regress/regress-3995.js
@@ -1,7 +1,7 @@
 // Copyright 2015 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.
-//
-// MODULE
 
-import { eval } from "mod";
+(function() {
+  throw new Error("boom");
+})();