[libclang] Fix crash when indexing attributes, rdar://10702250.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148524 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/index-attrs.m b/test/Index/index-attrs.m
new file mode 100644
index 0000000..1609b0f
--- /dev/null
+++ b/test/Index/index-attrs.m
@@ -0,0 +1,7 @@
+@class Foo;
+@interface Bar
+@property (retain) __attribute__((iboutletcollection(Foo))) Foo *prop;
+@end
+
+// RUN: c-index-test -index-file %s | FileCheck %s
+// CHECK: <attribute>: attribute(iboutletcollection)= [IBOutletCollection=ObjCInterface]