diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 26c2941..79c12d9 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -12,27 +12,28 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/CharUnits.h"
+#include "clang/AST/Comment.h"
 #include "clang/AST/CommentCommandTraits.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
-#include "clang/AST/TypeLoc.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/ExternalASTSource.h"
-#include "clang/AST/ASTMutationListener.h"
-#include "clang/AST/RecordLayout.h"
 #include "clang/AST/Mangle.h"
-#include "clang/AST/Comment.h"
+#include "clang/AST/RecordLayout.h"
+#include "clang/AST/TypeLoc.h"
 #include "clang/Basic/Builtins.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/Capacity.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/Capacity.h"
 #include "CXXABI.h"
 #include <map>
 
diff --git a/lib/AST/CommentSema.cpp b/lib/AST/CommentSema.cpp
index 08ecb3a..fb1137a 100644
--- a/lib/AST/CommentSema.cpp
+++ b/lib/AST/CommentSema.cpp
@@ -8,8 +8,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/CommentSema.h"
-#include "clang/AST/CommentDiagnostic.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/CommentCommandTraits.h"
+#include "clang/AST/CommentDiagnostic.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/Basic/SourceManager.h"
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 1f390ee..73c83fc 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -16,12 +16,13 @@
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/TypeLoc.h"
-#include "clang/AST/Stmt.h"
+#include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/PrettyPrinter.h"
-#include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Stmt.h"
+#include "clang/AST/TypeLoc.h"
 #include "clang/Basic/Builtins.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/Module.h"
@@ -2844,6 +2845,14 @@
 
 void ValueDecl::anchor() { }
 
+bool ValueDecl::isWeak() const {
+  for (attr_iterator I = attr_begin(), E = attr_end(); I != E; ++I)
+    if (isa<WeakAttr>(*I) || isa<WeakRefAttr>(*I))
+      return true;
+
+  return isWeakImported();
+}
+
 void ImplicitParamDecl::anchor() { }
 
 ImplicitParamDecl *ImplicitParamDecl::Create(ASTContext &C, DeclContext *DC,
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index b04c149..bfd6c27 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -19,12 +19,13 @@
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/DependentDiagnostic.h"
-#include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/Type.h"
+#include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Attr.h"
+#include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/Stmt.h"
 #include "clang/AST/StmtCXX.h"
-#include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Type.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/Support/raw_ostream.h"
@@ -253,6 +254,19 @@
   return getASTContext().getASTMutationListener();
 }
 
+unsigned Decl::getMaxAlignment() const {
+  if (!hasAttrs())
+    return 0;
+
+  unsigned Align = 0;
+  const AttrVec &V = getAttrs();
+  ASTContext &Ctx = getASTContext();
+  specific_attr_iterator<AlignedAttr> I(V.begin()), E(V.end());
+  for (; I != E; ++I)
+    Align = std::max(Align, I->getAlignment(Ctx));
+  return Align;
+}
+
 bool Decl::isUsed(bool CheckUsedAttr) const { 
   if (Used)
     return true;
diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index 65a9878..2b7b13b 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -13,8 +13,9 @@
 
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/Stmt.h"
 #include "clang/AST/ASTMutationListener.h"
+#include "clang/AST/Attr.h"
+#include "clang/AST/Stmt.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallString.h"
 using namespace clang;
@@ -205,6 +206,26 @@
   // explicitly, have to search class extension properties.
 }
 
+bool ObjCInterfaceDecl::isArcWeakrefUnavailable() const {
+  const ObjCInterfaceDecl *Class = this;
+  while (Class) {
+    if (Class->hasAttr<ArcWeakrefUnavailableAttr>())
+      return true;
+    Class = Class->getSuperClass();
+  }
+  return false;
+}
+
+const ObjCInterfaceDecl *ObjCInterfaceDecl::isObjCRequiresPropertyDefs() const {
+  const ObjCInterfaceDecl *Class = this;
+  while (Class) {
+    if (Class->hasAttr<ObjCRequiresPropertyDefsAttr>())
+      return Class;
+    Class = Class->getSuperClass();
+  }
+  return 0;
+}
+
 void ObjCInterfaceDecl::mergeClassExtensionProtocolList(
                               ObjCProtocolDecl *const* ExtList, unsigned ExtNum,
                               ASTContext &C)
diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index 386ad66..83f38ba 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -12,10 +12,11 @@
 //
 //===----------------------------------------------------------------------===//
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclVisitor.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/PrettyPrinter.h"
diff --git a/lib/AST/DumpXML.cpp b/lib/AST/DumpXML.cpp
index 5f43fbc..f2483f4 100644
--- a/lib/AST/DumpXML.cpp
+++ b/lib/AST/DumpXML.cpp
@@ -17,6 +17,7 @@
 // Only pay for this in code size in assertions-enabled builds.
 
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclFriend.h"
@@ -37,8 +38,6 @@
 #include "clang/AST/TypeLoc.h"
 #include "clang/AST/TypeLocVisitor.h"
 #include "clang/AST/TypeVisitor.h"
-#include "clang/AST/Expr.h"
-#include "clang/AST/ExprCXX.h"
 #include "llvm/ADT/SmallString.h"
 
 using namespace clang;
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index f3a2e05..e6171eb 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -11,22 +11,23 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/AST/Expr.h"
-#include "clang/AST/ExprCXX.h"
 #include "clang/AST/APValue.h"
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/DeclObjC.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/EvaluatedExprVisitor.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/ExprCXX.h"
 #include "clang/AST/RecordLayout.h"
 #include "clang/AST/StmtVisitor.h"
-#include "clang/Lex/LiteralSupport.h"
-#include "clang/Lex/Lexer.h"
-#include "clang/Sema/SemaDiagnostic.h"
 #include "clang/Basic/Builtins.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
+#include "clang/Lex/Lexer.h"
+#include "clang/Lex/LiteralSupport.h"
+#include "clang/Sema/SemaDiagnostic.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index 55722a2..1dc7de1 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -11,12 +11,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Basic/IdentifierTable.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/TypeLoc.h"
+#include "clang/Basic/IdentifierTable.h"
 using namespace clang;
 
 
diff --git a/lib/AST/ItaniumMangle.cpp b/lib/AST/ItaniumMangle.cpp
index 7509d96..566a389 100644
--- a/lib/AST/ItaniumMangle.cpp
+++ b/lib/AST/ItaniumMangle.cpp
@@ -16,6 +16,7 @@
 //===----------------------------------------------------------------------===//
 #include "clang/AST/Mangle.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
@@ -27,8 +28,8 @@
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/StringExtras.h"
-#include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
 
 #define MANGLE_CHECKER 0
 
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index afb8bf8..0da7f51 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -13,6 +13,7 @@
 
 #include "clang/AST/Mangle.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/CharUnits.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
@@ -21,7 +22,6 @@
 #include "clang/AST/ExprCXX.h"
 #include "clang/Basic/ABI.h"
 #include "clang/Basic/DiagnosticOptions.h"
-
 #include <map>
 
 using namespace clang;
diff --git a/lib/AST/Stmt.cpp b/lib/AST/Stmt.cpp
index eafcf92..952f0dd 100644
--- a/lib/AST/Stmt.cpp
+++ b/lib/AST/Stmt.cpp
@@ -46,6 +46,16 @@
   return StmtClassInfo[E];
 }
 
+void *Stmt::operator new(size_t bytes, ASTContext& C,
+                         unsigned alignment) throw() {
+  return ::operator new(bytes, C, alignment);
+}
+
+void *Stmt::operator new(size_t bytes, ASTContext* C,
+                         unsigned alignment) throw() {
+  return ::operator new(bytes, *C, alignment);
+}
+
 const char *Stmt::getStmtClassName() const {
   return getStmtInfoTableEntry((StmtClass) StmtBits.sClass).Name;
 }
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index e3398ae..5ed970b 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -13,13 +13,14 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/StmtVisitor.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
-#include "clang/AST/PrettyPrinter.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
+#include "clang/AST/PrettyPrinter.h"
+#include "clang/AST/StmtVisitor.h"
 #include "llvm/ADT/SmallString.h"
 using namespace clang;
 
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index 0aab240..97448ee 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -12,13 +12,14 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Attr.h"
 #include "clang/AST/CharUnits.h"
-#include "clang/AST/Type.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/PrettyPrinter.h"
+#include "clang/AST/Type.h"
 #include "clang/AST/TypeVisitor.h"
 #include "clang/Basic/Specifiers.h"
 #include "llvm/ADT/APSInt.h"