[compiler-rt] Adjust ASan Windows tests for mingw-w64 (#216585)

Add MinGW-specific configurations to the fuse-lld and unsymbolized
tests. Use the Clang driver and GNU-compatible LLD options instead of
the MSVC-oriented lld-link invocation, and account for differences in
the resulting symbolization output.

This change was split out of
https://github.com/llvm/llvm-project/pull/209902, which adds GCC support
to the sanitizer runtimes on Windows.

---------

Co-authored-by: Hannes Domani <ssbssa@yahoo.de>
NOKEYCHECK=True
GitOrigin-RevId: 94f216a9cf0e69db996fd573b764cc00d88eba02