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/DeclSpec.cpp b/lib/Sema/DeclSpec.cpp
index b3066eb..040e638 100644
--- a/lib/Sema/DeclSpec.cpp
+++ b/lib/Sema/DeclSpec.cpp
@@ -11,18 +11,18 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Parse/ParseDiagnostic.h" // FIXME: remove this back-dependency!
 #include "clang/Sema/DeclSpec.h"
-#include "clang/Sema/LocInfoType.h"
-#include "clang/Sema/ParsedTemplate.h"
-#include "clang/Sema/SemaDiagnostic.h"
-#include "clang/Sema/Sema.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/NestedNameSpecifier.h"
 #include "clang/AST/TypeLoc.h"
-#include "clang/Lex/Preprocessor.h"
 #include "clang/Basic/LangOptions.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Parse/ParseDiagnostic.h" // FIXME: remove this back-dependency!
+#include "clang/Sema/LocInfoType.h"
+#include "clang/Sema/ParsedTemplate.h"
+#include "clang/Sema/Sema.h"
+#include "clang/Sema/SemaDiagnostic.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/ErrorHandling.h"
 #include <cstring>