Reviewed-by: dcubed, kamg

8009303: Tiered: incorrect results in VM tests stringconcat with -Xcomp -XX:+DeoptimizeALot on solaris-amd64
Summary: Do memory flow analysis in string concat optimizier to exclude cases when computation of arguments to StringBuffer::append has side effects
Reviewed-by: kvn, twisti

Summary: Add MacOS X FDS support to hotspot; add minimal MacOS X FDS import support to jdk; add MacOS X FDS support to install; add MacOS X FDS support to root.
Reviewed-by: erikj, sla, dholmes, rdurbin, tbell, ihse

Reviewed-by: ccheung, coleenp

Summary: Check if data is in shared spaces before deallocating it.
Reviewed-by: coleenp, dcubed

Summary: Implement using the host_statistics64() api.
Reviewed-by: dsamersoff, morris, dholmes, coleenp, hseigel, dcubed
Contributed-by: gerard.ziemski@oracle.com

Reviewed-by: jcoomes