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.

llvm-svn: 169237

clang/lib/Analysis/PrintfFormatString.cpp

@@ -13,8 +13,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Analysis/Analyses/FormatString.h"
-#include "clang/Basic/TargetInfo.h"
 #include "FormatStringParsing.h"
+#include "clang/Basic/TargetInfo.h"
 
 using clang::analyze_format_string::ArgType;
 using clang::analyze_format_string::FormatStringHandler;