Don't include Type.h in DeclarationName.h.

Recursively prune some includes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169094 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Rewrite/Frontend/RewriteModernObjC.cpp b/lib/Rewrite/Frontend/RewriteModernObjC.cpp
index 01811f6..c16f15a 100644
--- a/lib/Rewrite/Frontend/RewriteModernObjC.cpp
+++ b/lib/Rewrite/Frontend/RewriteModernObjC.cpp
@@ -20,6 +20,7 @@
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Lex/Lexer.h"
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/OwningPtr.h"