8171084: heapdump/JMapHeapCore fails with java.lang.RuntimeException: Heap segment size overflow
Summary: Create a new heapdump segment and truncate huge arrays if required, to avoid overflow of the 32 bit value representing the size.
Reviewed-by: dholmes, dsamersoff
Contributed-by: jini.george@oracle.com

8145698: Memory leak in add_lib_info_fd of libproc_impl.c:174
Summary: Added missed free call
Reviewed-by: jbachorik, sspitsyn

8067194: Restructure hotspot/agent/src to conform the modular source layout
Summary: Move sources under jdk.hotspot.agent
Reviewed-by: ihse, erikj, jbachorik