Update Clang for LLVM rename AttributeSet -> AttributeList

llvm-svn: 298394
diff --git a/clang/lib/CodeGen/CGObjC.cpp b/clang/lib/CodeGen/CGObjC.cpp
index a67131a..4954a0d 100644
--- a/clang/lib/CodeGen/CGObjC.cpp
+++ b/clang/lib/CodeGen/CGObjC.cpp
@@ -1840,7 +1840,7 @@
       llvm::AttrBuilder B;
       B.addAttribute(llvm::Attribute::Returned);
 
-      F->arg_begin()->addAttr(llvm::AttributeSet::get(F->getContext(), 1, B));
+      F->arg_begin()->addAttr(llvm::AttributeList::get(F->getContext(), 1, B));
     }
   }