8161074: Quarantine jdk/vm/ci/hotspot/test/MethodHandleAccessProviderTest.java in JDK9-dev
Summary: Quarantine the test
Reviewed-by: dcubed, gtriantafill
8148813: Windows os::check_heap needs more information
Summary: added ring buffer to log info while walking the heap
Reviewed-by: mgronlun, dholmes, ccheung