Improve diagnostic when we fail to pick an overload because it would
require a base-to-derived pointer conversion.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107349 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/overload-call.cpp b/test/SemaCXX/overload-call.cpp
index 37974ef..8d12c9b 100644
--- a/test/SemaCXX/overload-call.cpp
+++ b/test/SemaCXX/overload-call.cpp
@@ -219,6 +219,12 @@
   char* d8 = derived3(d);
 }
 
+void derived4(C*); // expected-note{{candidate function not viable: cannot convert from base class pointer 'A *' to derived class pointer 'C *' for 1st argument}}
+
+void test_base(A* a) {
+  derived4(a); // expected-error{{no matching function for call to 'derived4}}
+}
+
 // Test overloading of references. 
 // (FIXME: tests binding to determine candidate sets, not overload 
 //  resolution per se).