[compiler-rt] [sanitizer] Support "alloc_dealloc_mismatch" suppressions (PR #124197)

[Bruno Cardoso Lopes via llvm-commits]

https://github.com/bcardosolopes commented:

The PR looks simple enough to me, solid testcase and there has been some experience using it in production (at Meta). You should wait a for a stamp and actual review though from @vitalybuka, but LGTM.

https://github.com/llvm/llvm-project/pull/124197