[turbofan] Optimized support for CreateGeneratorObject.

src/compiler/js-operator.h

Index: src/compiler/js-operator.h
diff --git a/src/compiler/js-operator.h b/src/compiler/js-operator.h
index 4142a2b261f95e72dba6ce3ce51181e3e4ecb925..a9cfd6306e0fea11f415fdb2e44d3c09357bfd6b 100644
--- a/src/compiler/js-operator.h
+++ b/src/compiler/js-operator.h
@@ -701,6 +701,8 @@ class V8_EXPORT_PRIVATE JSOperatorBuilder final
 
   const Operator* GetSuperConstructor();
 
+  const Operator* CreateGeneratorObject();
+
   const Operator* LoadGlobal(const Handle<Name>& name,
                              const VectorSlotPair& feedback,
                              TypeofMode typeof_mode = NOT_INSIDE_TYPEOF);