Ivar access mode ObjCIvarDecl::None == ObjCIvarDecl::Protected, not private.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53953 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/CheckObjCUnusedIVars.cpp

@@ -55,8 +55,7 @@ void clang::CheckObjCUnusedIvar(ObjCImplementationDecl* D, BugReporter& BR) {
     ObjCIvarDecl* ID = *I;
     
     // Ignore ivars that aren't private.
-    ObjCIvarDecl::AccessControl ac = ID->getAccessControl();
-    if (!(ac == ObjCIvarDecl::None || ac == ObjCIvarDecl::Private))
+    if (ID->getAccessControl() != ObjCIvarDecl::Private)
       continue;
     
     if (ID->getAttr<IBOutletAttr>() == 0)