Do not enter forward class 'Protocol' in decl context.
Will do it later. Fixes pr5552.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89269 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/class-protocol.m b/test/SemaObjC/class-protocol.m
new file mode 100644
index 0000000..12b6381
--- /dev/null
+++ b/test/SemaObjC/class-protocol.m
@@ -0,0 +1,6 @@
+// RUN: clang-cc  -fsyntax-only -verify %s
+// pr5552
+
+@interface Protocol 
+@end
+