8148813: Windows os::check_heap needs more information
Summary: added ring buffer to log info while walking the heap
Reviewed-by: mgronlun, dholmes, ccheung
dpochepk [Thu, 23 Jun 2016 17:40:20 +0300] rev 39447
8159730: compiler/jvmci/compilerToVM/IsMatureTest failed with "Multiple times invoked method should have method data (assert failed: 0 != 0)"
Reviewed-by: kvn