8181647: jhsdb jstack could not output thread nameSummary: standardized thread information across jstack, jhsdb jstack, and jhsdb jstack --mixedReviewed-by: ysuenaga, poonamContributed-by: chihiro.ito@oracle.com
8067194: Restructure hotspot/agent/src to conform the modular source layoutSummary: Move sources under jdk.hotspot.agentReviewed-by: ihse, erikj, jbachorik