PR13890: Warn on abstract final classes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164359 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CXX/class/p2-0x.cpp b/test/CXX/class/p2-0x.cpp
index dbb01e5..5b39e0a 100644
--- a/test/CXX/class/p2-0x.cpp
+++ b/test/CXX/class/p2-0x.cpp
@@ -26,3 +26,11 @@
 
 }
 
+namespace Test4 {
+
+struct A final { virtual void func() = 0; }; // expected-warning {{abstract class is marked 'final'}} expected-note {{unimplemented pure virtual method 'func' in 'A'}}
+struct B { virtual void func() = 0; }; // expected-note {{unimplemented pure virtual method 'func' in 'C'}}
+
+struct C final : B { }; // expected-warning {{abstract class is marked 'final'}}
+
+}