Add the TID to the CallStack.

src/processor/minidump_processor.cc

Index: src/processor/minidump_processor.cc
diff --git a/src/processor/minidump_processor.cc b/src/processor/minidump_processor.cc
index b7d7a0d9d969f78031084934c9c14a6e4b872b11..448152a8ba71e69ef3af2e5e813856e658ef1b78 100644
--- a/src/processor/minidump_processor.cc
+++ b/src/processor/minidump_processor.cc
@@ -267,6 +267,7 @@ ProcessResult MinidumpProcessor::Process(
       // one bad thread.
       BPLOG(ERROR) << "No stackwalker for " << thread_string;
     }
+    stack->set_tid(thread_id);
     process_state->threads_.push_back(stack.release());
     process_state->thread_memory_regions_.push_back(thread_memory);
   }