Don't check use of a member function declaration used if the member function is virtual and the member reference expression doesn't explicitly qualify it. Fixes PR4878.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81460 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/attr-deprecated.cpp b/test/SemaCXX/attr-deprecated.cpp
index 99a249e..10b4a55 100644
--- a/test/SemaCXX/attr-deprecated.cpp
+++ b/test/SemaCXX/attr-deprecated.cpp
@@ -24,3 +24,20 @@
   (void)b;
   (void)a->b;
 }
+
+struct B {
+  virtual void f() __attribute__((deprecated));
+};
+
+struct C : B {
+  virtual void f();
+};
+
+void f(B* b, C *c) {
+  b->f();
+  b->B::f(); // expected-warning{{'f' is deprecated}}
+  
+  c->f();
+  c->C::f();
+  c->B::f(); // expected-warning{{'f' is deprecated}}
+}