This test needs to be re-examined when modular boundaries are enforced. javac will fail compilation if a test accesses internal API. ct.sym no longer exists in jdk9.

 * - Verify that asm is not in ct.sym so user code that refs it won't compile.
 * - Verify that asm really is in rt.jar and can be accessed when ct.sym is not used.
 * - Verify that if user code is compiled without ct.sym, it can't access asm classes
 * at runtime when a security manager is in use.

This test might not be needed.