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

[via llvm-commits]

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@@ -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);
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GkvJwa wrote:

Different, SetCurrentThread calls AsanTSDSet to save the context

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