Be sure to also register the BinaryOpWithAllocationSiteStub.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index e366e88b481f6be5ca022d6719cd72d8845404df..d27a458fa41313e26e806f11c3c350269f7c0535 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -771,6 +771,13 @@ void BinaryOpICStub::InstallDescriptors(Isolate* isolate) {
 
 
 // static
+void BinaryOpWithAllocationSiteStub::InstallDescriptors(Isolate* isolate) {
+  BinaryOpWithAllocationSiteStub stub(Token::ADD, NO_OVERWRITE);
+  InstallDescriptor(isolate, &stub);
+}
+
+
+// static
 void NewStringAddStub::InstallDescriptors(Isolate* isolate) {
   NewStringAddStub stub(STRING_ADD_CHECK_NONE, NOT_TENURED);
   InstallDescriptor(isolate, &stub);