Thread Safety Analysis: reorganized SExpr header files.  No change in
functionality.

llvm-svn: 205936
diff --git a/clang/lib/Analysis/ThreadSafety.cpp b/clang/lib/Analysis/ThreadSafety.cpp
index 9cc2a55..b6a73bd 100644
--- a/clang/lib/Analysis/ThreadSafety.cpp
+++ b/clang/lib/Analysis/ThreadSafety.cpp
@@ -23,6 +23,7 @@
 #include "clang/Analysis/Analyses/PostOrderCFGView.h"
 #include "clang/Analysis/Analyses/ThreadSafety.h"
 #include "clang/Analysis/Analyses/ThreadSafetyTIL.h"
+#include "clang/Analysis/Analyses/ThreadSafetyTraverse.h"
 #include "clang/Analysis/Analyses/ThreadSafetyCommon.h"
 #include "clang/Analysis/AnalysisContext.h"
 #include "clang/Analysis/CFG.h"