[modules] Don't throw when detecting cycle while processing star exports.

test/mjsunit/modules-star-exports-cycle.js

Index: test/mjsunit/modules-star-exports-cycle.js
diff --git a/test/mjsunit/modules-default.js b/test/mjsunit/modules-star-exports-cycle.js
similarity index 64%
copy from test/mjsunit/modules-default.js
copy to test/mjsunit/modules-star-exports-cycle.js
index 304703b246fb1fd935d54e1bf5af435f65465adb..6af3139af01863455520681505b2fd27fbe3477b 100644
--- a/test/mjsunit/modules-default.js
+++ b/test/mjsunit/modules-star-exports-cycle.js
@@ -4,8 +4,8 @@
 //
 // MODULE
 
-import foo from "modules-skip-1.js";
-assertEquals(42, foo);
+const bar = 42;
+export {bar as foo};
 
-import {default as gaga} from "modules-skip-1.js";
-assertEquals(42, gaga);
+import {foo} from "modules-skip-star-exports-cycle.js";
+assertEquals(42, foo);