[PATCH, TSAN] Fix a crash in ScopedReport::AddThread

[Bernd Edlinger]

Hi Jakub,


with my OPC UA Server, I observe a reproducible crash in
ScopedReport::AddThread: tctx==NULL
in "if ((u32)rep_->threads[i]->id == tctx->tid)".

Apparently, Dmitry has already fixed that in the obvious way.

So we should cherry pick these two changes from LLVM: 224508 and 224755
See attachment.


Builds cleanly and fixes the problem for me.

OK for trunk?


Thanks
Bernd.
 		 	   		  
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