8176176: fix @modules in jdk_svc tests
Reviewed-by: shurailine, sspitsyn

8085919: OperatingSystemMXBean/TestTotalSwap.java failure : Total Swap Space figures mismatch
Reviewed-by: dholmes

8078896: Add @modules as needed to the jdk_svc tests
Reviewed-by: alanb, mchung

8072908: com/sun/management/OperatingSystemMXBean/TestTotalSwap.sh fails on OS X with exit code 2
Reviewed-by: dholmes, sla