[clang] [compiler-rt] Move interceptors for libresolv functions to MSan (PR #119071)

[Aaron Puchert via cfe-commits]

https://github.com/aaronpuchert commented:

Regarding the removed test: there is still the MSan-specific test [compiler-rt/test/msan/Linux/b64.cpp](https://github.com/llvm/llvm-project/blob/main/compiler-rt/test/msan/Linux/b64.cpp).

https://github.com/llvm/llvm-project/pull/119071