[NewPM] Port HWASan and Kernel HWASan

[NewPM] Port HWASan and Kernel HWASan

Port hardware assisted address sanitizer to new PM following the same guidelines as msan and tsan.

Changes:
- Separate HWAddressSanitizer into a pass class and a sanitizer class.
- Create new PM wrapper pass for the sanitizer class.
- Use the getOrINsert pattern for some module level initialization declarations.
- Also enable kernel-kwasan in new PM
- Update llvm tests and add clang test.

Differential Revision: https://reviews.llvm.org/D61709

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360707 91177308-0d34-0410-b5e6-96231b3b80d8