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/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index b5fb89f..2341c01 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -26,26 +26,26 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Lex/Preprocessor.h"
-#include "clang/Lex/PreprocessorOptions.h"
 #include "MacroArgs.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Lex/CodeCompletionHandler.h"
 #include "clang/Lex/ExternalPreprocessorSource.h"
 #include "clang/Lex/HeaderSearch.h"
+#include "clang/Lex/LexDiagnostic.h"
+#include "clang/Lex/LiteralSupport.h"
 #include "clang/Lex/MacroInfo.h"
+#include "clang/Lex/ModuleLoader.h"
 #include "clang/Lex/Pragma.h"
 #include "clang/Lex/PreprocessingRecord.h"
+#include "clang/Lex/PreprocessorOptions.h"
 #include "clang/Lex/ScratchBuffer.h"
-#include "clang/Lex/LexDiagnostic.h"
-#include "clang/Lex/CodeCompletionHandler.h"
-#include "clang/Lex/ModuleLoader.h"
-#include "clang/Lex/LiteralSupport.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/FileManager.h"
-#include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/Support/Capacity.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/Capacity.h"
 using namespace clang;
 
 //===----------------------------------------------------------------------===//