Update aosp/master Clang for rebase to r222490.

Change-Id: Ic557ac55e97fbf6ee08771c7b7c3594777b0aefd
diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index 186a741..5deef58 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -151,7 +151,7 @@
 
 ObjCPropertyDecl *
 ObjCPropertyDecl::findPropertyDecl(const DeclContext *DC,
-                                   IdentifierInfo *propertyID) {
+                                   const IdentifierInfo *propertyID) {
   // If this context is a hidden protocol definition, don't find any
   // property.
   if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(DC)) {
@@ -181,8 +181,8 @@
 
 /// FindPropertyDeclaration - Finds declaration of the property given its name
 /// in 'PropertyId' and returns it. It returns 0, if not found.
-ObjCPropertyDecl *
-ObjCContainerDecl::FindPropertyDeclaration(IdentifierInfo *PropertyId) const {
+ObjCPropertyDecl *ObjCContainerDecl::FindPropertyDeclaration(
+    const IdentifierInfo *PropertyId) const {
   // Don't find properties within hidden protocol definitions.
   if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(this)) {
     if (const ObjCProtocolDecl *Def = Proto->getDefinition())
@@ -558,36 +558,39 @@
     LoadExternalDefinition();
 
   while (ClassDecl) {
+    // 1. Look through primary class.
     if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance)))
       return MethodDecl;
-
-    // Didn't find one yet - look through protocols.
-    for (const auto *I : ClassDecl->protocols())
-      if ((MethodDecl = I->lookupMethod(Sel, isInstance)))
-        return MethodDecl;
     
-    // Didn't find one yet - now look through categories.
-    for (const auto *Cat : ClassDecl->visible_categories()) {
+    // 2. Didn't find one yet - now look through categories.
+    for (const auto *Cat : ClassDecl->visible_categories())
       if ((MethodDecl = Cat->getMethod(Sel, isInstance)))
         if (C != Cat || !MethodDecl->isImplicit())
           return MethodDecl;
 
-      if (!shallowCategoryLookup) {
+    // 3. Didn't find one yet - look through primary class's protocols.
+    for (const auto *I : ClassDecl->protocols())
+      if ((MethodDecl = I->lookupMethod(Sel, isInstance)))
+        return MethodDecl;
+    
+    // 4. Didn't find one yet - now look through categories' protocols
+    if (!shallowCategoryLookup)
+      for (const auto *Cat : ClassDecl->visible_categories()) {
         // Didn't find one yet - look through protocols.
         const ObjCList<ObjCProtocolDecl> &Protocols =
-        Cat->getReferencedProtocols();
+          Cat->getReferencedProtocols();
         for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
              E = Protocols.end(); I != E; ++I)
           if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
             if (C != Cat || !MethodDecl->isImplicit())
               return MethodDecl;
       }
-    }
-
+    
+    
     if (!followSuper)
       return nullptr;
 
-    // Get the super class (if any).
+    // 5. Get to the super class (if any).
     ClassDecl = ClassDecl->getSuperClass();
   }
   return nullptr;
@@ -849,6 +852,11 @@
       family = OMF_None;
     break;
       
+  case OMF_initialize:
+    if (isInstanceMethod() || !getReturnType()->isVoidType())
+      family = OMF_None;
+    break;
+      
   case OMF_performSelector:
     if (!isInstanceMethod() || !getReturnType()->isObjCIdType())
       family = OMF_None;
@@ -952,6 +960,13 @@
   llvm_unreachable("unknown method context");
 }
 
+SourceRange ObjCMethodDecl::getReturnTypeSourceRange() const {
+  const auto *TSI = getReturnTypeSourceInfo();
+  if (TSI)
+    return TSI->getTypeLoc().getSourceRange();
+  return SourceRange();
+}
+
 static void CollectOverriddenMethodsRecurse(const ObjCContainerDecl *Container,
                                             const ObjCMethodDecl *Method,
                                SmallVectorImpl<const ObjCMethodDecl *> &Methods,
@@ -1199,6 +1214,23 @@
   return data().HasDesignatedInitializers;
 }
 
+StringRef
+ObjCInterfaceDecl::getObjCRuntimeNameAsString() const {
+  if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>())
+    return ObjCRTName->getMetadataName();
+
+  return getName();
+}
+
+StringRef
+ObjCImplementationDecl::getObjCRuntimeNameAsString() const {
+  if (ObjCInterfaceDecl *ID =
+      const_cast<ObjCImplementationDecl*>(this)->getClassInterface())
+    return ID->getObjCRuntimeNameAsString();
+    
+  return getName();
+}
+
 ObjCImplementationDecl *ObjCInterfaceDecl::getImplementation() const {
   if (const ObjCInterfaceDecl *Def = getDefinition()) {
     if (data().ExternallyCompleted)
@@ -1603,6 +1635,14 @@
   }
 }
 
+StringRef
+ObjCProtocolDecl::getObjCRuntimeNameAsString() const {
+  if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>())
+    return ObjCRTName->getMetadataName();
+
+  return getName();
+}
+
 //===----------------------------------------------------------------------===//
 // ObjCCategoryDecl
 //===----------------------------------------------------------------------===//