[clang] [Clang] add wraps and no_wraps attributes (PR #115094)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

Naming wise I prefer `wrap` -> `no_sanitize("undefined")` already exists but does not apply to variables and types

`no_wrap` -> `sanitize("undefined")` does not exist, and a little confusing (no_wrap as well). It may look it enabled sanitization.

Would it make sense to support attributes like  `__attribute__((no_sanitize("-undefined")))` ? Seems like better representation of the fact that we want to undo sanitizer suppression. @erichkeane  WDYT


https://github.com/llvm/llvm-project/pull/115094