[compiler-rt] asan: refactor interceptor allocation/deallocation functions (PR #145087)

[Justin King via llvm-commits]

jcking wrote:

> Looks reasonable - however, is it dependent (stacked) on #146696 change?

Yep. I split that part out, as requested by @vitalybuka.

https://github.com/llvm/llvm-project/pull/145087