Fix the warning that is emitted when an ownership attribute is applied incorrectly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134278 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Basic/DiagnosticSemaKinds.td

@@ -1243,6 +1243,8 @@ def warn_function_attribute_wrong_type : Warning<
   "'%0' only applies to function types; type here is %1">;
 def warn_pointer_attribute_wrong_type : Warning<
   "'%0' only applies to pointer types; type here is %1">;
+def warn_objc_object_attribute_wrong_type : Warning<
+  "'%0' only applies to objective-c object or block pointer types; type here is %1">;
 def warn_gnu_inline_attribute_requires_inline : Warning<
   "'gnu_inline' attribute requires function to be marked 'inline',"
   " attribute ignored">;

lib/Sema/SemaType.cpp

@@ -87,6 +87,11 @@ static void diagnoseBadTypeAttribute(Sema &S, const AttributeList &attr,
     useInstantiationLoc = true;
     break;
 
+  case AttributeList::AT_objc_ownership:
+    diagID = diag::warn_objc_object_attribute_wrong_type;
+    useInstantiationLoc = true;
+    break;
+
   default:
     // Assume everything else was a function attribute.
     diagID = diag::warn_function_attribute_wrong_type;

test/SemaObjC/arc.m

@@ -604,4 +604,6 @@ void test35(void) {
   __block id y;
   test36_helper(&y);
   ^{ test36_helper(&y); }();
+
+  __strong int non_objc_type; // expected-warning {{'__strong' only applies to objective-c object or block pointer types}} 
 }