objective-C: when searching for declarations in protocol
list of classes, etc., make sure to look into protocol
definitions. // rdar://12958878
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171777 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/forward-protocol-incomplete-impl-warn.m b/test/SemaObjC/forward-protocol-incomplete-impl-warn.m
new file mode 100644
index 0000000..1010cd7
--- /dev/null
+++ b/test/SemaObjC/forward-protocol-incomplete-impl-warn.m
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -fobjc-default-synthesize-properties %s
+// rdar://12958878
+
+@interface NSObject @end
+
+@protocol DVTInvalidation
+- (void)invalidate; // expected-note {{method 'invalidate' declared here}}
+@property int Prop; // expected-note {{property declared here}}
+@end
+
+
+
+@protocol DVTInvalidation;
+
+@interface IBImageCatalogDocument : NSObject <DVTInvalidation> // expected-note {{required for direct or indirect protocol 'DVTInvalidation'}}
+@end
+
+@implementation IBImageCatalogDocument // expected-warning {{auto property synthesis will not synthesize property declared in a protocol}} \
+ // expected-warning {{incomplete implementation}} \
+ // expected-warning {{method 'invalidate' in protocol not implemented}}
+@end