[compiler-rt] [asan][win] Fix CreateThread leak (PR #126738)

[via llvm-commits]

================
@@ -166,6 +190,15 @@ INTERCEPTOR_WINAPI(HANDLE, CreateThread, LPSECURITY_ATTRIBUTES security,
                             thr_flags, tid);
 }
 
+INTERCEPTOR_WINAPI(void, ExitThread, DWORD dwExitCode) {
+  DWORD key = atomic_load(&g_native_tls_key, memory_order_relaxed);
+  AsanThread *t = (AsanThread *)TlsGetValue(key);
----------------
GkvJwa wrote:

> So why we can't just GetCurrentThread()->Destroy()?

Thanks, review it again when you have time

https://github.com/llvm/llvm-project/pull/126738