[llvm-branch-commits] [ubsan] Runtime and driver support for local-bounds (PR #120515)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/120515

Implements ``-f[no-]sanitize-trap=local-bounds``,
and ``-f[no-]sanitize-recover=local-bounds``.