Sort all the #include lines with LLVM's utils/sort_includes.py which
encodes the canonical rules for LLVM's style. I noticed this had drifted
quite a bit when cleaning up LLVM, so wanted to clean up Clang as well.

llvm-svn: 198686
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index b06f81b..c11f2c9 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -17,9 +17,9 @@
 #include "CGBuilder.h"
 #include "CGDebugInfo.h"
 #include "CGValue.h"
-#include "EHScopeStack.h"
 #include "CodeGenModule.h"
 #include "CodeGenPGO.h"
+#include "EHScopeStack.h"
 #include "clang/AST/CharUnits.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/ExprObjC.h"