[compiler-rt] [TSan] Fix spurious 'thread finished with ignores enabled' warning on FreeBSD (PR #155399)

[Vitaly Buka via llvm-commits]

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@@ -2890,7 +2890,9 @@ TSAN_INTERCEPTOR(void, _lwp_exit) {
 
 #if SANITIZER_FREEBSD
 TSAN_INTERCEPTOR(void, thr_exit, ThreadID *state) {
-  SCOPED_TSAN_INTERCEPTOR(thr_exit, state);
+  {
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vitalybuka wrote:

It's not obvious why {} is needed.
Can you add explaining comment?

https://github.com/llvm/llvm-project/pull/155399