Diagnose if an implementation implements a forward class
declaration (and avoid issuing bogus error later on).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69928 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/class-impl-1.m b/test/SemaObjC/class-impl-1.m
index 5cd8a75..5a67bef 100644
--- a/test/SemaObjC/class-impl-1.m
+++ b/test/SemaObjC/class-impl-1.m
@@ -31,3 +31,10 @@
@implementation INTF4 @end // expected-warning {{cannot find interface declaration for 'INTF4'}}
+@class INTF5;
+
+@implementation INTF5 { // expected-warning {{cannot find interface declaration for 'INTF5'}}
+ int x;
+}
+@end
+