testcase for PR2416, which we already handle correctly.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54096 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/enum.c b/test/Sema/enum.c
index dcc5291..50e6d9d 100644
--- a/test/Sema/enum.c
+++ b/test/Sema/enum.c
@@ -48,3 +48,6 @@
   ve2;         // expected-warning {{expression result unused}}
 }
 
+// PR2416
+enum someenum {};  // expected-warning {{use of empty enum extension}}
+