am ca2fd368: am ebe8f799: Merge "Revert "Revert "Revert "Revert "Add implicit null and stack checks for x86"""""

* commit 'ca2fd368828b9e6ea12b69b6d63a7abd39ad12bd':
  Revert "Revert "Revert "Revert "Add implicit null and stack checks for x86""""