Clang really intends to reject attribute 'warn_unused_result' on Objective-C methods, but
instead it crashes on them.  We might extend this attribute to work on methods, but for
now fix the crasher.  Addresses <rdar://problem/7670939>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96723 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index ef82d53..8178a14 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -754,7 +754,7 @@
     return;
   }
 
-  if (!isFunctionOrMethod(D)) {
+  if (!isFunction(D)) {
     S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
       << Attr.getName() << 0 /*function*/;
     return;