Revert my patches which removed Diagnostic.h includes by moving some operator overloads out of line.

This seems to negatively affect compile time onsome ObjC tests
(which use a lot of partial diagnostics I assume). I have to come
up with a way to keep them inline without including Diagnostic.h
everywhere. Now adding a new diagnostic requires a full rebuild
of e.g. the static analyzer which doesn't even use those diagnostics.

This reverts commit 6496bd10dc3a6d5e3266348f08b6e35f8184bc99.
This reverts commit 7af19b817ba964ac560b50c1ed6183235f699789.
This reverts commit fdd15602a42bbe26185978ef1e17019f6d969aa7.
This reverts commit 00bd44d5677783527d7517c1ffe45e4d75a0f56f.
This reverts commit ef9b60ffed980864a8db26ad30344be429e58ff5.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/ASTContext.h b/include/clang/AST/ASTContext.h
index a234471..c0d191e 100644
--- a/include/clang/AST/ASTContext.h
+++ b/include/clang/AST/ASTContext.h
@@ -18,6 +18,7 @@
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/LangOptions.h"
 #include "clang/Basic/OperatorKinds.h"
+#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/VersionTuple.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/NestedNameSpecifier.h"
@@ -48,7 +49,6 @@
   class ExternalASTSource;
   class ASTMutationListener;
   class IdentifierTable;
-  class PartialDiagnosticStorageAllocator;
   class SelectorTable;
   class SourceManager;
   class TargetInfo;
@@ -346,7 +346,7 @@
   mutable llvm::BumpPtrAllocator BumpAlloc;
 
   /// \brief Allocator for partial diagnostics.
-  PartialDiagnosticStorageAllocator *DiagAllocator;
+  PartialDiagnostic::StorageAllocator DiagAllocator;
 
   /// \brief The current C++ ABI.
   OwningPtr<CXXABI> ABI;
@@ -391,8 +391,8 @@
   /// Return the total memory used for various side tables.
   size_t getSideTableAllocatedMemory() const;
   
-  PartialDiagnosticStorageAllocator &getDiagAllocator() {
-    return *DiagAllocator;
+  PartialDiagnostic::StorageAllocator &getDiagAllocator() {
+    return DiagAllocator;
   }
 
   const TargetInfo &getTargetInfo() const { return *Target; }
diff --git a/include/clang/AST/CanonicalType.h b/include/clang/AST/CanonicalType.h
index 5b27b4e..38e6b41 100644
--- a/include/clang/AST/CanonicalType.h
+++ b/include/clang/AST/CanonicalType.h
@@ -200,7 +200,11 @@
   return CanQualType::CreateUnsafe(getCanonicalTypeInternal());
 }
 
-const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, CanQualType T);
+inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
+                                           CanQualType T) {
+  DB << static_cast<QualType>(T);
+  return DB;
+}
 
 //----------------------------------------------------------------------------//
 // Internal proxy classes used by canonical types
diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 37c9623..24d2d85 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -41,11 +41,7 @@
 class UnresolvedSetImpl;
 class LabelStmt;
 class Module;
-
-// Forward declare PartialDiagnosticAt.
-// FIXME: This shouldn't be here.
-typedef std::pair<SourceLocation, PartialDiagnostic> PartialDiagnosticAt;
-
+  
 /// \brief A container of type source information.
 ///
 /// A client can read the relevant info using TypeLoc wrappers, e.g:
@@ -3179,11 +3175,18 @@
 
 /// Insertion operator for diagnostics.  This allows sending NamedDecl's
 /// into a diagnostic with <<.
-const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
-                                    const NamedDecl* ND);
-
-const PartialDiagnostic &operator<<(const PartialDiagnostic &PD,
-                                    const NamedDecl* ND);
+inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
+                                           const NamedDecl* ND) {
+  DB.AddTaggedVal(reinterpret_cast<intptr_t>(ND),
+                  DiagnosticsEngine::ak_nameddecl);
+  return DB;
+}
+inline const PartialDiagnostic &operator<<(const PartialDiagnostic &PD,
+                                           const NamedDecl* ND) {
+  PD.AddTaggedVal(reinterpret_cast<intptr_t>(ND),
+                  DiagnosticsEngine::ak_nameddecl);
+  return PD;
+}
 
 template<typename decl_type>
 void Redeclarable<decl_type>::setPreviousDeclaration(decl_type *PrevDecl) {
diff --git a/include/clang/AST/DeclarationName.h b/include/clang/AST/DeclarationName.h
index 0d87e26..2170f2b 100644
--- a/include/clang/AST/DeclarationName.h
+++ b/include/clang/AST/DeclarationName.h
@@ -16,6 +16,7 @@
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/AST/Type.h"
 #include "clang/AST/CanonicalType.h"
+#include "clang/Basic/PartialDiagnostic.h"
 
 namespace llvm {
   template <typename T> struct DenseMapInfo;
@@ -516,16 +517,24 @@
 
 /// Insertion operator for diagnostics.  This allows sending DeclarationName's
 /// into a diagnostic with <<.
-const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
-                                    DeclarationName N);
+inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
+                                           DeclarationName N) {
+  DB.AddTaggedVal(N.getAsOpaqueInteger(),
+                  DiagnosticsEngine::ak_declarationname);
+  return DB;
+}
 
 /// Insertion operator for partial diagnostics.  This allows binding
 /// DeclarationName's into a partial diagnostic with <<.
-const PartialDiagnostic &operator<<(const PartialDiagnostic &PD,
-                                    DeclarationName N);
+inline const PartialDiagnostic &operator<<(const PartialDiagnostic &PD,
+                                           DeclarationName N) {
+  PD.AddTaggedVal(N.getAsOpaqueInteger(),
+                  DiagnosticsEngine::ak_declarationname);
+  return PD;
+}
 
 inline raw_ostream &operator<<(raw_ostream &OS,
-                               DeclarationNameInfo DNInfo) {
+                                     DeclarationNameInfo DNInfo) {
   DNInfo.printName(OS);
   return OS;
 }
diff --git a/include/clang/AST/Mangle.h b/include/clang/AST/Mangle.h
index ed392ab..ca22ed6 100644
--- a/include/clang/AST/Mangle.h
+++ b/include/clang/AST/Mangle.h
@@ -27,8 +27,6 @@
   class CXXConstructorDecl;
   class CXXDestructorDecl;
   class CXXMethodDecl;
-  class DeclContext;
-  class DiagnosticsEngine;
   class FunctionDecl;
   class NamedDecl;
   class ObjCMethodDecl;
diff --git a/include/clang/AST/NestedNameSpecifier.h b/include/clang/AST/NestedNameSpecifier.h
index 8d4a53f..bda2d31 100644
--- a/include/clang/AST/NestedNameSpecifier.h
+++ b/include/clang/AST/NestedNameSpecifier.h
@@ -14,14 +14,13 @@
 #ifndef LLVM_CLANG_AST_NESTEDNAMESPECIFIER_H
 #define LLVM_CLANG_AST_NESTEDNAMESPECIFIER_H
 
-#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/Diagnostic.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/PointerIntPair.h"
 
 namespace clang {
 
 class ASTContext;
-class DiagnosticBuilder;
 class NamespaceAliasDecl;
 class NamespaceDecl;
 class IdentifierInfo;
@@ -465,8 +464,12 @@
 
 /// Insertion operator for diagnostics.  This allows sending
 /// NestedNameSpecifiers into a diagnostic with <<.
-const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
-                                    NestedNameSpecifier *NNS);
+inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
+                                           NestedNameSpecifier *NNS) {
+  DB.AddTaggedVal(reinterpret_cast<intptr_t>(NNS),
+                  DiagnosticsEngine::ak_nestednamespec);
+  return DB;
+}
 
 }
 
diff --git a/include/clang/AST/Type.h b/include/clang/AST/Type.h
index b989d55..641f732 100644
--- a/include/clang/AST/Type.h
+++ b/include/clang/AST/Type.h
@@ -14,9 +14,11 @@
 #ifndef LLVM_CLANG_AST_TYPE_H
 #define LLVM_CLANG_AST_TYPE_H
 
+#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/ExceptionSpecificationType.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/Linkage.h"
+#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/Visibility.h"
 #include "clang/AST/NestedNameSpecifier.h"
 #include "clang/AST/TemplateName.h"
@@ -92,7 +94,6 @@
   class ExtQuals;
   class ExtQualsTypeCommonBase;
   struct PrintingPolicy;
-  class PartialDiagnostic;
 
   template <typename> class CanQual;
   typedef CanQual<Type> CanQualType;
@@ -4801,11 +4802,21 @@
 
 /// Insertion operator for diagnostics.  This allows sending QualType's into a
 /// diagnostic with <<.
-const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, QualType T);
+inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB,
+                                           QualType T) {
+  DB.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()),
+                  DiagnosticsEngine::ak_qualtype);
+  return DB;
+}
 
 /// Insertion operator for partial diagnostics.  This allows sending QualType's
 /// into a diagnostic with <<.
-const PartialDiagnostic &operator<<(const PartialDiagnostic &PD, QualType T);
+inline const PartialDiagnostic &operator<<(const PartialDiagnostic &PD,
+                                           QualType T) {
+  PD.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()),
+                  DiagnosticsEngine::ak_qualtype);
+  return PD;
+}
 
 // Helper class template that is used by Type::getAs to ensure that one does
 // not try to look through a qualified type to get to an array type.
diff --git a/include/clang/Basic/Diagnostic.h b/include/clang/Basic/Diagnostic.h
index b981512..224f1a4 100644
--- a/include/clang/Basic/Diagnostic.h
+++ b/include/clang/Basic/Diagnostic.h
@@ -601,7 +601,6 @@
   friend class DiagnosticBuilder;
   friend class Diagnostic;
   friend class PartialDiagnostic;
-  friend struct PartialDiagnosticStorage;
   friend class DiagnosticErrorTrap;
   
   /// CurDiagLoc - This is the location of the current diagnostic that is in
diff --git a/include/clang/Basic/PartialDiagnostic.h b/include/clang/Basic/PartialDiagnostic.h
index 7bc9f54..f6092e6 100644
--- a/include/clang/Basic/PartialDiagnostic.h
+++ b/include/clang/Basic/PartialDiagnostic.h
@@ -23,87 +23,91 @@
 
 namespace clang {
 
-struct PartialDiagnosticStorage {
-  PartialDiagnosticStorage() : NumDiagArgs(0), NumDiagRanges(0) { }
-
+class PartialDiagnostic {
+public:
   enum {
-      /// MaxArguments - The maximum number of arguments we can hold. We
-      /// currently only support up to 10 arguments (%0-%9).
-      /// A single diagnostic with more than that almost certainly has to
-      /// be simplified anyway.
+      // The MaxArguments and MaxFixItHints member enum values from
+      // DiagnosticsEngine are private but DiagnosticsEngine declares
+      // PartialDiagnostic a friend.  These enum values are redeclared
+      // here so that the nested Storage class below can access them.
       MaxArguments = DiagnosticsEngine::MaxArguments
   };
 
-  /// NumDiagArgs - This contains the number of entries in Arguments.
-  unsigned char NumDiagArgs;
+  struct Storage {
+    Storage() : NumDiagArgs(0), NumDiagRanges(0) { }
 
-  /// NumDiagRanges - This is the number of ranges in the DiagRanges array.
-  unsigned char NumDiagRanges;
+    enum {
+        /// MaxArguments - The maximum number of arguments we can hold. We
+        /// currently only support up to 10 arguments (%0-%9).
+        /// A single diagnostic with more than that almost certainly has to
+        /// be simplified anyway.
+        MaxArguments = PartialDiagnostic::MaxArguments
+    };
 
-  /// DiagArgumentsKind - This is an array of ArgumentKind::ArgumentKind enum
-  /// values, with one for each argument.  This specifies whether the argument
-  /// is in DiagArgumentsStr or in DiagArguments.
-  unsigned char DiagArgumentsKind[MaxArguments];
+    /// NumDiagArgs - This contains the number of entries in Arguments.
+    unsigned char NumDiagArgs;
 
-  /// DiagArgumentsVal - The values for the various substitution positions.
-  /// This is used when the argument is not an std::string. The specific value
-  /// is mangled into an intptr_t and the interpretation depends on exactly
-  /// what sort of argument kind it is.
-  intptr_t DiagArgumentsVal[MaxArguments];
+    /// NumDiagRanges - This is the number of ranges in the DiagRanges array.
+    unsigned char NumDiagRanges;
 
-  /// \brief The values for the various substitution positions that have
-  /// string arguments.
-  std::string DiagArgumentsStr[MaxArguments];
+    /// DiagArgumentsKind - This is an array of ArgumentKind::ArgumentKind enum
+    /// values, with one for each argument.  This specifies whether the argument
+    /// is in DiagArgumentsStr or in DiagArguments.
+    unsigned char DiagArgumentsKind[MaxArguments];
 
-  /// DiagRanges - The list of ranges added to this diagnostic.  It currently
-  /// only support 10 ranges, could easily be extended if needed.
-  CharSourceRange DiagRanges[10];
+    /// DiagArgumentsVal - The values for the various substitution positions.
+    /// This is used when the argument is not an std::string. The specific value
+    /// is mangled into an intptr_t and the interpretation depends on exactly
+    /// what sort of argument kind it is.
+    intptr_t DiagArgumentsVal[MaxArguments];
 
-  /// FixItHints - If valid, provides a hint with some code
-  /// to insert, remove, or modify at a particular position.
-  SmallVector<FixItHint, 6>  FixItHints;
-};
+    /// \brief The values for the various substitution positions that have
+    /// string arguments.
+    std::string DiagArgumentsStr[MaxArguments];
 
-/// \brief An allocator for Storage objects, which uses a small cache to
-/// objects, used to reduce malloc()/free() traffic for partial diagnostics.
-class PartialDiagnosticStorageAllocator {
-  static const unsigned NumCached = 16;
-  typedef PartialDiagnosticStorage Storage;
-  Storage Cached[NumCached];
-  Storage *FreeList[NumCached];
-  unsigned NumFreeListEntries;
+    /// DiagRanges - The list of ranges added to this diagnostic.  It currently
+    /// only support 10 ranges, could easily be extended if needed.
+    CharSourceRange DiagRanges[10];
 
-public:
-  PartialDiagnosticStorageAllocator();
-  ~PartialDiagnosticStorageAllocator();
+    /// FixItHints - If valid, provides a hint with some code
+    /// to insert, remove, or modify at a particular position.
+    SmallVector<FixItHint, 6>  FixItHints;
+  };
 
-  /// \brief Allocate new storage.
-  Storage *Allocate() {
-    if (NumFreeListEntries == 0)
-      return new Storage;
+  /// \brief An allocator for Storage objects, which uses a small cache to
+  /// objects, used to reduce malloc()/free() traffic for partial diagnostics.
+  class StorageAllocator {
+    static const unsigned NumCached = 16;
+    Storage Cached[NumCached];
+    Storage *FreeList[NumCached];
+    unsigned NumFreeListEntries;
 
-    Storage *Result = FreeList[--NumFreeListEntries];
-    Result->NumDiagArgs = 0;
-    Result->NumDiagRanges = 0;
-    Result->FixItHints.clear();
-    return Result;
-  }
+  public:
+    StorageAllocator();
+    ~StorageAllocator();
 
-  /// \brief Free the given storage object.
-  void Deallocate(Storage *S) {
-    if (S >= Cached && S <= Cached + NumCached) {
-      FreeList[NumFreeListEntries++] = S;
-      return;
+    /// \brief Allocate new storage.
+    Storage *Allocate() {
+      if (NumFreeListEntries == 0)
+        return new Storage;
+
+      Storage *Result = FreeList[--NumFreeListEntries];
+      Result->NumDiagArgs = 0;
+      Result->NumDiagRanges = 0;
+      Result->FixItHints.clear();
+      return Result;
     }
 
-    delete S;
-  }
-};
+    /// \brief Free the given storage object.
+    void Deallocate(Storage *S) {
+      if (S >= Cached && S <= Cached + NumCached) {
+        FreeList[NumFreeListEntries++] = S;
+        return;
+      }
 
-class PartialDiagnostic {
-public:
-  typedef PartialDiagnosticStorage Storage;
-  typedef PartialDiagnosticStorageAllocator StorageAllocator;
+      delete S;
+    }
+  };
 
 private:
   // NOTE: Sema assumes that PartialDiagnostic is location-invariant
diff --git a/include/clang/Lex/PPCallbacks.h b/include/clang/Lex/PPCallbacks.h
index 987d616..19e8521 100644
--- a/include/clang/Lex/PPCallbacks.h
+++ b/include/clang/Lex/PPCallbacks.h
@@ -16,6 +16,7 @@
 
 #include "clang/Lex/DirectoryLookup.h"
 #include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/DiagnosticIDs.h"
 #include "llvm/ADT/StringRef.h"
 #include <string>
 
@@ -157,10 +158,9 @@
   }
 
   /// PragmaDiagnostic - This callback is invoked when a
-  /// #pragma gcc diagnostic directive is read.
-  /// Mapping is an element of the diag::Mapping enum.
+  /// #pragma gcc dianostic directive is read.
   virtual void PragmaDiagnostic(SourceLocation Loc, StringRef Namespace,
-                                unsigned mapping, StringRef Str) {
+                                diag::Mapping mapping, StringRef Str) {
   }
 
   /// MacroExpands - This is called by
@@ -303,7 +303,7 @@
   }
 
   virtual void PragmaDiagnostic(SourceLocation Loc, StringRef Namespace,
-                                unsigned mapping, StringRef Str) {
+                                diag::Mapping mapping, StringRef Str) {
     First->PragmaDiagnostic(Loc, Namespace, mapping, Str);
     Second->PragmaDiagnostic(Loc, Namespace, mapping, Str);
   }
diff --git a/include/clang/Lex/PTHManager.h b/include/clang/Lex/PTHManager.h
index 6ae3a71..25a4903 100644
--- a/include/clang/Lex/PTHManager.h
+++ b/include/clang/Lex/PTHManager.h
@@ -17,6 +17,7 @@
 #include "clang/Lex/PTHLexer.h"
 #include "clang/Basic/LangOptions.h"
 #include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/Diagnostic.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/Support/Allocator.h"
 #include <string>
diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index 77dc234..9c3b64a 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -21,6 +21,7 @@
 #include "clang/Lex/TokenLexer.h"
 #include "clang/Lex/PTHManager.h"
 #include "clang/Basic/Builtins.h"
+#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/SourceLocation.h"
 #include "llvm/ADT/DenseMap.h"
@@ -60,7 +61,7 @@
 /// like the #include stack, token expansion, etc.
 ///
 class Preprocessor : public llvm::RefCountedBase<Preprocessor> {
-  DiagnosticsEngine *Diags;
+  DiagnosticsEngine        *Diags;
   LangOptions       &Features;
   const TargetInfo  *Target;
   FileManager       &FileMgr;
@@ -728,7 +729,12 @@
   bool isCodeCompletionReached() const { return CodeCompletionReached; }
 
   /// \brief Note that we hit the code-completion point.
-  void setCodeCompletionReached();
+  void setCodeCompletionReached() {
+    assert(isCodeCompletionEnabled() && "Code-completion not enabled!");
+    CodeCompletionReached = true;
+    // Silence any diagnostics that occur after we hit the code-completion.
+    getDiagnostics().setSuppressAllDiagnostics(true);
+  }
 
   /// \brief The location of the currently-active #pragma clang
   /// arc_cf_code_audited begin.  Returns an invalid location if there
@@ -758,9 +764,13 @@
   /// Diag - Forwarding function for diagnostics.  This emits a diagnostic at
   /// the specified Token's location, translating the token's start
   /// position in the current buffer into a SourcePosition object for rendering.
-  DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) const;
+  DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) const {
+    return Diags->Report(Loc, DiagID);
+  }
 
-  DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID) const;
+  DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID) const {
+    return Diags->Report(Tok.getLocation(), DiagID);
+  }
 
   /// getSpelling() - Return the 'spelling' of the token at the given
   /// location; does not go up to the spelling location or down to the
diff --git a/include/clang/Sema/CodeCompleteConsumer.h b/include/clang/Sema/CodeCompleteConsumer.h
index 832c47d..c77b68f 100644
--- a/include/clang/Sema/CodeCompleteConsumer.h
+++ b/include/clang/Sema/CodeCompleteConsumer.h
@@ -24,7 +24,6 @@
 namespace clang {
 
 class Decl;
-class Preprocessor;
 
 /// \brief Default priority values for code-completion results based
 /// on their kind.
diff --git a/include/clang/Sema/DelayedDiagnostic.h b/include/clang/Sema/DelayedDiagnostic.h
index 235f634..dd2603d 100644
--- a/include/clang/Sema/DelayedDiagnostic.h
+++ b/include/clang/Sema/DelayedDiagnostic.h
@@ -22,7 +22,6 @@
 #define LLVM_CLANG_SEMA_DELAYED_DIAGNOSTIC_H
 
 #include "clang/AST/DeclCXX.h"
-#include "clang/Basic/PartialDiagnostic.h"
 
 namespace clang {
 namespace sema {
diff --git a/include/clang/Sema/Sema.h b/include/clang/Sema/Sema.h
index e7a1864..e7441ad 100644
--- a/include/clang/Sema/Sema.h
+++ b/include/clang/Sema/Sema.h
@@ -30,7 +30,6 @@
 #include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/Lex/ModuleLoader.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/Specifiers.h"
 #include "clang/Basic/TemplateKinds.h"
 #include "clang/Basic/TypeTraits.h"
diff --git a/include/clang/Sema/SemaFixItUtils.h b/include/clang/Sema/SemaFixItUtils.h
index 84e03d8..fffca67 100644
--- a/include/clang/Sema/SemaFixItUtils.h
+++ b/include/clang/Sema/SemaFixItUtils.h
@@ -14,7 +14,6 @@
 #define LLVM_CLANG_SEMA_FIXITUTILS_H
 
 #include "clang/AST/Expr.h"
-#include "clang/Basic/Diagnostic.h"
 
 namespace clang {
 
diff --git a/include/clang/Serialization/ASTWriter.h b/include/clang/Serialization/ASTWriter.h
index e36f3a0..f6a2c48 100644
--- a/include/clang/Serialization/ASTWriter.h
+++ b/include/clang/Serialization/ASTWriter.h
@@ -43,7 +43,6 @@
 class NestedNameSpecifier;
 class CXXBaseSpecifier;
 class CXXCtorInitializer;
-class DiagnosticsEngine;
 class FPOptions;
 class HeaderSearch;
 class IdentifierResolver;
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 416045e..069f106 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -24,7 +24,6 @@
 #include "clang/AST/RecordLayout.h"
 #include "clang/AST/Mangle.h"
 #include "clang/Basic/Builtins.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallString.h"
@@ -242,9 +241,6 @@
     LastSDM(0, 0),
     UniqueBlockByRefTypeID(0) 
 {
-  // Create a new allocator for partial diagnostics.
-  DiagAllocator = new (BumpAlloc) PartialDiagnosticStorageAllocator;
-
   if (size_reserve > 0) Types.reserve(size_reserve);
   TUDecl = TranslationUnitDecl::Create(*this);
   
@@ -289,9 +285,6 @@
                                                     AEnd = DeclAttrs.end();
        A != AEnd; ++A)
     A->second->~AttrVec();
-
-  // Destroy the partial diagnostic allocator.
-  DiagAllocator->~PartialDiagnosticStorageAllocator();
 }
 
 void ASTContext::AddDeallocation(void (*Callback)(void*), void *Data) {
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 03cfc83..d80e06b 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -25,7 +25,6 @@
 #include "clang/Basic/Builtins.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/Module.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/Specifiers.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -3002,17 +3001,3 @@
   
   return SourceRange(getLocation(), getIdentifierLocs().back());
 }
-
-const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
-                                           const NamedDecl* ND) {
-  DB.AddTaggedVal(reinterpret_cast<intptr_t>(ND),
-                  DiagnosticsEngine::ak_nameddecl);
-  return DB;
-}
-
-const PartialDiagnostic &clang::operator<<(const PartialDiagnostic &PD,
-                                           const NamedDecl* ND) {
-  PD.AddTaggedVal(reinterpret_cast<intptr_t>(ND),
-                  DiagnosticsEngine::ak_nameddecl);
-  return PD;
-}
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index d64385a..d522103 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -20,7 +20,6 @@
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/Basic/IdentifierTable.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallPtrSet.h"
 using namespace clang;
diff --git a/lib/AST/DeclarationName.cpp b/lib/AST/DeclarationName.cpp
index f550cf8..a5488e6 100644
--- a/lib/AST/DeclarationName.cpp
+++ b/lib/AST/DeclarationName.cpp
@@ -18,7 +18,6 @@
 #include "clang/AST/TypeLoc.h"
 #include "clang/AST/TypeOrdering.h"
 #include "clang/Basic/IdentifierTable.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -621,17 +620,3 @@
   }
   llvm_unreachable("Unexpected declaration name kind");
 }
-
-const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
-                                           DeclarationName N) {
-  DB.AddTaggedVal(N.getAsOpaqueInteger(),
-                  DiagnosticsEngine::ak_declarationname);
-  return DB;
-}
-
-const PartialDiagnostic &clang::operator<<(const PartialDiagnostic &PD,
-                                           DeclarationName N) {
-  PD.AddTaggedVal(N.getAsOpaqueInteger(),
-                  DiagnosticsEngine::ak_declarationname);
-  return PD;
-}
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 283132a..e33d22a 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -42,7 +42,6 @@
 #include "clang/AST/ASTDiagnostic.h"
 #include "clang/AST/Expr.h"
 #include "clang/Basic/Builtins.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallString.h"
 #include <cstring>
diff --git a/lib/AST/ItaniumMangle.cpp b/lib/AST/ItaniumMangle.cpp
index e39031d..5919242 100644
--- a/lib/AST/ItaniumMangle.cpp
+++ b/lib/AST/ItaniumMangle.cpp
@@ -24,7 +24,6 @@
 #include "clang/AST/ExprObjC.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/Basic/ABI.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/StringExtras.h"
diff --git a/lib/AST/NestedNameSpecifier.cpp b/lib/AST/NestedNameSpecifier.cpp
index 9b714ed..c59d40a 100644
--- a/lib/AST/NestedNameSpecifier.cpp
+++ b/lib/AST/NestedNameSpecifier.cpp
@@ -18,7 +18,6 @@
 #include "clang/AST/PrettyPrinter.h"
 #include "clang/AST/Type.h"
 #include "clang/AST/TypeLoc.h"
-#include "clang/Basic/Diagnostic.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cassert>
 
@@ -640,9 +639,3 @@
   return NestedNameSpecifierLoc(Representation, Mem);
 }
 
-const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
-                                           NestedNameSpecifier *NNS) {
-  DB.AddTaggedVal(reinterpret_cast<intptr_t>(NNS),
-                  DiagnosticsEngine::ak_nestednamespec);
-  return DB;
-}
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index be38ba6..ebf5706 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -20,7 +20,6 @@
 #include "clang/AST/Expr.h"
 #include "clang/AST/PrettyPrinter.h"
 #include "clang/AST/TypeVisitor.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/Specifiers.h"
 #include "llvm/ADT/APSInt.h"
 #include "llvm/ADT/StringExtras.h"
@@ -2310,23 +2309,3 @@
   
   return true;
 }
-
-const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
-                                           QualType T) {
-  DB.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()),
-                  DiagnosticsEngine::ak_qualtype);
-  return DB;
-}
-
-const PartialDiagnostic &clang::operator<<(const PartialDiagnostic &PD,
-                                           QualType T) {
-  PD.AddTaggedVal(reinterpret_cast<intptr_t>(T.getAsOpaquePtr()),
-                  DiagnosticsEngine::ak_qualtype);
-  return PD;
-}
-
-const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
-                                           CanQualType T) {
-  DB << static_cast<QualType>(T);
-  return DB;
-}
diff --git a/lib/Basic/Diagnostic.cpp b/lib/Basic/Diagnostic.cpp
index 268b024..41f66c4 100644
--- a/lib/Basic/Diagnostic.cpp
+++ b/lib/Basic/Diagnostic.cpp
@@ -877,13 +877,13 @@
 
 void IgnoringDiagConsumer::anchor() { }
 
-PartialDiagnosticStorageAllocator::PartialDiagnosticStorageAllocator() {
+PartialDiagnostic::StorageAllocator::StorageAllocator() {
   for (unsigned I = 0; I != NumCached; ++I)
     FreeList[I] = Cached + I;
   NumFreeListEntries = NumCached;
 }
 
-PartialDiagnosticStorageAllocator::~PartialDiagnosticStorageAllocator() {
+PartialDiagnostic::StorageAllocator::~StorageAllocator() {
   // Don't assert if we are in a CrashRecovery context, as this
   // invariant may be invalidated during a crash.
   assert((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && "A partial is on the lamb");
diff --git a/lib/CodeGen/CGCXXABI.cpp b/lib/CodeGen/CGCXXABI.cpp
index 05f52a0..c1b20af 100644
--- a/lib/CodeGen/CGCXXABI.cpp
+++ b/lib/CodeGen/CGCXXABI.cpp
@@ -13,7 +13,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "CGCXXABI.h"
-#include "clang/Basic/Diagnostic.h"
 
 using namespace clang;
 using namespace CodeGen;
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index f1b986e..335b527 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -21,9 +21,8 @@
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/RecordLayout.h"
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/FileManager.h"
 #include "clang/Basic/SourceManager.h"
+#include "clang/Basic/FileManager.h"
 #include "clang/Basic/Version.h"
 #include "clang/Frontend/CodeGenOptions.h"
 #include "llvm/Constants.h"
diff --git a/lib/CodeGen/CodeGenTBAA.cpp b/lib/CodeGen/CodeGenTBAA.cpp
index 401ad10..148081e 100644
--- a/lib/CodeGen/CodeGenTBAA.cpp
+++ b/lib/CodeGen/CodeGenTBAA.cpp
@@ -22,7 +22,6 @@
 #include "llvm/Metadata.h"
 #include "llvm/Constants.h"
 #include "llvm/Type.h"
-#include "llvm/ADT/STLExtras.h"
 using namespace clang;
 using namespace CodeGen;
 
diff --git a/lib/Frontend/PrintPreprocessedOutput.cpp b/lib/Frontend/PrintPreprocessedOutput.cpp
index 43b64b2..f62ca57 100644
--- a/lib/Frontend/PrintPreprocessedOutput.cpp
+++ b/lib/Frontend/PrintPreprocessedOutput.cpp
@@ -128,7 +128,7 @@
   virtual void PragmaDiagnosticPop(SourceLocation Loc,
                                    StringRef Namespace);
   virtual void PragmaDiagnostic(SourceLocation Loc, StringRef Namespace,
-                                unsigned Map, StringRef Str);
+                                diag::Mapping Map, StringRef Str);
 
   bool HandleFirstTokOnLine(Token &Tok);
   bool MoveToLine(SourceLocation Loc) {
@@ -385,10 +385,10 @@
 
 void PrintPPOutputPPCallbacks::
 PragmaDiagnostic(SourceLocation Loc, StringRef Namespace,
-                 unsigned Map, StringRef Str) {
+                 diag::Mapping Map, StringRef Str) {
   MoveToLine(Loc);
   OS << "#pragma " << Namespace << " diagnostic ";
-  switch ((diag::Mapping)Map) {
+  switch (Map) {
   case diag::MAP_WARNING:
     OS << "warning";
     break;
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 7033e9c..75ab89d 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -336,21 +336,6 @@
   setCodeCompletionReached();
 }
 
-void Preprocessor::setCodeCompletionReached() {
-  assert(isCodeCompletionEnabled() && "Code-completion not enabled!");
-  CodeCompletionReached = true;
-  // Silence any diagnostics that occur after we hit the code-completion.
-  getDiagnostics().setSuppressAllDiagnostics(true);
-}
-
-DiagnosticBuilder Preprocessor::Diag(SourceLocation Loc, unsigned DiagID) const{
-  return Diags->Report(Loc, DiagID);
-}
-
-DiagnosticBuilder Preprocessor::Diag(const Token &Tok, unsigned DiagID) const {
-  return Diags->Report(Tok.getLocation(), DiagID);
-}
-
 /// getSpelling - This method is used to get the spelling of a token into a
 /// SmallVector. Note that the returned StringRef may not point to the
 /// supplied buffer if a copy can be avoided.
diff --git a/lib/Rewrite/HTMLRewrite.cpp b/lib/Rewrite/HTMLRewrite.cpp
index 44d635a..63b7def 100644
--- a/lib/Rewrite/HTMLRewrite.cpp
+++ b/lib/Rewrite/HTMLRewrite.cpp
@@ -17,7 +17,6 @@
 #include "clang/Rewrite/HTMLRewrite.h"
 #include "clang/Lex/TokenConcatenation.h"
 #include "clang/Lex/Preprocessor.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/OwningPtr.h"
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index 447250a..71bf335 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -16,7 +16,6 @@
 #include "clang/Sema/AnalysisBasedWarnings.h"
 #include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/ScopeInfo.h"
-#include "clang/Basic/PartialDiagnostic.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/SourceLocation.h"
 #include "clang/Lex/Preprocessor.h"
diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index f245718..827fbed 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -29,7 +29,6 @@
 #include "clang/Lex/PreprocessingRecord.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Lex/HeaderSearch.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/FileSystemStatCache.h"
 #include "clang/Basic/OnDiskHashTable.h"
diff --git a/lib/Serialization/GeneratePCH.cpp b/lib/Serialization/GeneratePCH.cpp
index 9a6564d..02aed10 100644
--- a/lib/Serialization/GeneratePCH.cpp
+++ b/lib/Serialization/GeneratePCH.cpp
@@ -17,7 +17,6 @@
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/Lex/Preprocessor.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/FileSystemStatCache.h"
 #include "llvm/Bitcode/BitstreamWriter.h"
diff --git a/lib/StaticAnalyzer/Checkers/AttrNonNullChecker.cpp b/lib/StaticAnalyzer/Checkers/AttrNonNullChecker.cpp
index e372dbf..0b11a45 100644
--- a/lib/StaticAnalyzer/Checkers/AttrNonNullChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/AttrNonNullChecker.cpp
@@ -17,7 +17,6 @@
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Checkers/DivZeroChecker.cpp b/lib/StaticAnalyzer/Checkers/DivZeroChecker.cpp
index bcc4ad0..ca71ca3 100644
--- a/lib/StaticAnalyzer/Checkers/DivZeroChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/DivZeroChecker.cpp
@@ -17,7 +17,6 @@
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Checkers/ObjCAtSyncChecker.cpp b/lib/StaticAnalyzer/Checkers/ObjCAtSyncChecker.cpp
index 96301e7..d70fdfd 100644
--- a/lib/StaticAnalyzer/Checkers/ObjCAtSyncChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/ObjCAtSyncChecker.cpp
@@ -20,7 +20,6 @@
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
 #include "clang/StaticAnalyzer/Checkers/DereferenceChecker.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp b/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
index f6f01b8..2d018ef 100644
--- a/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
@@ -19,7 +19,6 @@
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
 #include "llvm/ADT/ImmutableList.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Checkers/StreamChecker.cpp b/lib/StaticAnalyzer/Checkers/StreamChecker.cpp
index 137b8ce..54fd70a 100644
--- a/lib/StaticAnalyzer/Checkers/StreamChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/StreamChecker.cpp
@@ -20,7 +20,6 @@
 #include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/SymbolManager.h"
 #include "llvm/ADT/ImmutableMap.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Core/AnalysisManager.cpp b/lib/StaticAnalyzer/Core/AnalysisManager.cpp
index 4d73b9d..af18eff 100644
--- a/lib/StaticAnalyzer/Core/AnalysisManager.cpp
+++ b/lib/StaticAnalyzer/Core/AnalysisManager.cpp
@@ -10,7 +10,6 @@
 #include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h"
 #include "clang/Index/Entity.h"
 #include "clang/Index/Indexer.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Core/BugReporter.cpp b/lib/StaticAnalyzer/Core/BugReporter.cpp
index 299fad1..8e5ea36 100644
--- a/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ b/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -21,7 +21,6 @@
 #include "clang/AST/Expr.h"
 #include "clang/AST/ParentMap.h"
 #include "clang/AST/StmtObjC.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Analysis/ProgramPoint.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h"
diff --git a/lib/StaticAnalyzer/Core/CheckerRegistry.cpp b/lib/StaticAnalyzer/Core/CheckerRegistry.cpp
index b87a754..9791e2e 100644
--- a/lib/StaticAnalyzer/Core/CheckerRegistry.cpp
+++ b/lib/StaticAnalyzer/Core/CheckerRegistry.cpp
@@ -10,7 +10,6 @@
 #include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
 #include "clang/StaticAnalyzer/Core/CheckerOptInfo.h"
 #include "llvm/ADT/SetVector.h"
-#include "llvm/ADT/STLExtras.h"
 
 using namespace clang;
 using namespace ento;
diff --git a/lib/StaticAnalyzer/Core/TextPathDiagnostics.cpp b/lib/StaticAnalyzer/Core/TextPathDiagnostics.cpp
index 575db60..0c6b228 100644
--- a/lib/StaticAnalyzer/Core/TextPathDiagnostics.cpp
+++ b/lib/StaticAnalyzer/Core/TextPathDiagnostics.cpp
@@ -13,7 +13,6 @@
 
 #include "clang/StaticAnalyzer/Core/PathDiagnosticConsumers.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Lex/Preprocessor.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace clang;
diff --git a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
index 6e658f9..93c879e 100644
--- a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -27,7 +27,6 @@
 #include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
 #include "clang/StaticAnalyzer/Core/PathDiagnosticConsumers.h"
 
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Frontend/AnalyzerOptions.h"
diff --git a/tools/libclang/IndexingContext.h b/tools/libclang/IndexingContext.h
index 24afaea..bc33005 100644
--- a/tools/libclang/IndexingContext.h
+++ b/tools/libclang/IndexingContext.h
@@ -13,14 +13,12 @@
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclGroup.h"
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/IntrusiveRefCntPtr.h"
 
 namespace clang {
   class FileEntry;
   class ObjCPropertyDecl;
   class ClassTemplateDecl;
   class FunctionTemplateDecl;
-  class Preprocessor;
   class TypeAliasTemplateDecl;
 
 namespace cxindex {