8001071: Add simple range check into VM implemenation of Unsafe access methods
Summary: Add simple check in debug version of VM.
Reviewed-by: twisti, johnc
8000623: tools/javac/Diagnostics/6769027/T6769027.java crashes in PSPromotionManager::copy_to_survivor_space
Summary: Fix type of method pointer load from vtable.
Reviewed-by: twisti, johnc, roland