[modules] Detect and throw exceptions for cyclic dependencies

test/mjsunit/modules-skip-cyclic.js

Index: test/mjsunit/modules-skip-cyclic.js
diff --git a/test/message/generators-throw1.js b/test/mjsunit/modules-skip-cyclic.js
similarity index 77%
copy from test/message/generators-throw1.js
copy to test/mjsunit/modules-skip-cyclic.js
index b4d404a1bf4d1e8f46c669c79f9ececd6f1ee64f..ad5d80608eaafe02be420c953c24a5a2d90e06eb 100644
--- a/test/message/generators-throw1.js
+++ b/test/mjsunit/modules-skip-cyclic.js
@@ -2,6 +2,4 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-function* f() { yield }
-
-f().throw(42);
+export {b as a} from "modules-fail-cyclic-2.js";