hg: jdk/jdk11: 8207765: HeapMonitorTest.java intermittent failure

[serguei.spitsyn at oracle.com]

Changeset: 224c202c02a5
Author:    jcbeyler
Date:      2018-07-25 10:51 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk11/rev/224c202c02a5

8207765: HeapMonitorTest.java intermittent failure
Summary: Lower the interval rate and check GC objects too
Reviewed-by: dcubed, sspitsyn
Contributed-by: jcbeyler at google.com

! test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorTest.java