RFR (xs) 8190617: test/jdk/sun/tools/jhsdb/BasicLauncherTest.java fails

[coleen.phillimore at oracle.com]

Summary: change type expected by SA for PerfMemory::_initialize to int.

open webrev at http://cr.openjdk.java.net/~coleenp/8190617.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8190617

Tested with failing test case and mach5 tier1, tier2, all platforms in 
progress.

Thanks,
Coleen