Sort #include lines for tools/...

Completely automated with sort_includes.py

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169240 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/IndexingContext.cpp b/tools/libclang/IndexingContext.cpp
index d4daa49..8ba1854 100644
--- a/tools/libclang/IndexingContext.cpp
+++ b/tools/libclang/IndexingContext.cpp
@@ -8,12 +8,11 @@
 //===----------------------------------------------------------------------===//
 
 #include "IndexingContext.h"
-#include "CXTranslationUnit.h"
 #include "CIndexDiagnostic.h"
-
-#include "clang/Frontend/ASTUnit.h"
+#include "CXTranslationUnit.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclTemplate.h"
+#include "clang/Frontend/ASTUnit.h"
 
 using namespace clang;
 using namespace cxindex;