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
diff --git a/clang/lib/Analysis/BodyFarm.cpp b/clang/lib/Analysis/BodyFarm.cpp
index 794ff9c..d038cf1 100644
--- a/clang/lib/Analysis/BodyFarm.cpp
+++ b/clang/lib/Analysis/BodyFarm.cpp
@@ -12,12 +12,12 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/ADT/StringSwitch.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/AST/Expr.h"
-#include "clang/AST/Decl.h"
-#include "clang/AST/ExprObjC.h"
 #include "BodyFarm.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/ExprObjC.h"
+#include "llvm/ADT/StringSwitch.h"
 
 using namespace clang;