[compiler-rt] [asan] API for getting multiple pointer ranges (PR #181446)

[Maksim Ivanov via llvm-commits]

emaxx-google wrote:

Hello, WDYT about this API addition? The original motivation is Chromium V8 sandbox - being able to differentiate whether an error like `memcpy-param-overlap` happens purely within the sandbox memory region. But I think these accessors can be useful for other purposes too, instead of having to rely on parsing ASan's output.

https://github.com/llvm/llvm-project/pull/181446