Merge "Disable the x86 & x86-64 UnsafeCASObject intrinsic with heap poisoning." am: b1f10f51bf am: 96680544d6
am: 5b44d746c1

* commit '5b44d746c1520f35390b218b9e6dc6465c474f8a':
  Disable the x86 & x86-64 UnsafeCASObject intrinsic with heap poisoning.