Track overriding methods when instantiating a template class. Fixes PR5550.

llvm-svn: 89248
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 7e618cd..deb7ff0 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -869,6 +869,8 @@
       !Method->getFriendObjectKind())
     Owner->addDecl(Method);
 
+  SemaRef.AddOverriddenMethods(Record, Method);
+
   return Method;
 }