Sort all of Clang's files under 'lib', and fix up the broken headers
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Rewrite/Frontend/RewriteMacros.cpp b/lib/Rewrite/Frontend/RewriteMacros.cpp
index f399dd5..3c1d2e1 100644
--- a/lib/Rewrite/Frontend/RewriteMacros.cpp
+++ b/lib/Rewrite/Frontend/RewriteMacros.cpp
@@ -13,12 +13,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Rewrite/Frontend/Rewriters.h"
-#include "clang/Rewrite/Core/Rewriter.h"
-#include "clang/Lex/Preprocessor.h"
 #include "clang/Basic/SourceManager.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/Path.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Rewrite/Core/Rewriter.h"
 #include "llvm/ADT/OwningPtr.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_ostream.h"
 #include <cstdio>
 
 using namespace clang;