[compiler-rt] [ASan] Ensure Symbolize Flag setting on Windows through __asan_default_options() is maintained throughout runtime (PR #132811)

[Nico Weber via llvm-commits]

nico wrote:

This breaks the build:

```
../../compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cpp:36:18: error: reading variable 'tools_' requires holding mutex 'symbolizer_->mu_' [-Werror,-Wthread-safety-analysis]
   36 |     symbolizer_->tools_.clear();
      |                  ^
1 error generated.
```

Please take a look or revert for now if it takes a while to fix.

https://github.com/llvm/llvm-project/pull/132811