8081347: Add @modules to jdk_core testsReviewed-by: alanb, joehw, lanceaContributed-by: alexander.kulyakhtin@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com
8026213: Reflection support for private interface methodsReviewed-by: forax, psandoz, dholmes, jfranckContributed-by: karen.kinnear@oracle.com