[analyzer] Use the new registration mechanism on some of the experimental internal checkers:

  CastToStructChecker
  FixedAddressChecker
  PointerArithChecker
  PointerSubChecker

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125612 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed