[llvm-branch-commits] [NFC][sanitizer][asan] Promote stack_id into ThreadContextBase (PR #111917)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/111917

`parent_id` and `stack_id` represent location
where the thread was created, so it's reasonable
to keep them togeter.

For now, only Asan and MemProf use `stack_id`,
but it will be halpfull to print thread origin from
other sanitizers as well.

For TODO