6459804: Want client (c1) compiler for x86_64 (amd64) for faster start-up
Reviewed-by: kvn

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: Use the gap also for a narrow oop field and a boxing object value.
Reviewed-by: coleenp, never

Summary: Initial checkin of JSDT code
Reviewed-by: acorn, sbohne