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/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 235383f..f1ffd78 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -12,32 +12,32 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Sema/Initialization.h"
-#include "clang/Sema/Sema.h"
 #include "clang/Sema/SemaInternal.h"
-#include "clang/Sema/Initialization.h"
-#include "clang/Sema/Lookup.h"
-#include "clang/Sema/ScopeInfo.h"
-#include "clang/Analysis/Analyses/FormatString.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/CharUnits.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclObjC.h"
+#include "clang/AST/EvaluatedExprVisitor.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/ExprObjC.h"
-#include "clang/AST/EvaluatedExprVisitor.h"
-#include "clang/AST/DeclObjC.h"
 #include "clang/AST/StmtCXX.h"
 #include "clang/AST/StmtObjC.h"
-#include "clang/Lex/Preprocessor.h"
-#include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/Support/raw_ostream.h"
+#include "clang/Analysis/Analyses/FormatString.h"
+#include "clang/Basic/ConvertUTF.h"
 #include "clang/Basic/TargetBuiltins.h"
 #include "clang/Basic/TargetInfo.h"
-#include "clang/Basic/ConvertUTF.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Sema/Initialization.h"
+#include "clang/Sema/Initialization.h"
+#include "clang/Sema/Lookup.h"
+#include "clang/Sema/ScopeInfo.h"
+#include "clang/Sema/Sema.h"
+#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/raw_ostream.h"
 #include <limits>
 using namespace clang;
 using namespace sema;