Compute end_overridden_methods in a way that keeps ENABLE_EXPENSIVE_CHECKS
happy.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77850 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 4a2f799..ad015d1 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -362,7 +362,7 @@
   if (it == OverriddenMethods->end() || it->second->empty())
     return 0;
 
-  return &(*it->second)[it->second->size()];
+  return &(*it->second)[0] + it->second->size();
 }
 
 QualType CXXMethodDecl::getThisType(ASTContext &C) const {