[stubs]: Convert FastNewContext stub to turbofan

src/compiler/js-generic-lowering.cc

Index: src/compiler/js-generic-lowering.cc
diff --git a/src/compiler/js-generic-lowering.cc b/src/compiler/js-generic-lowering.cc
index ab4a7bb8d29eb31fd39db68a4d1c5c8b2d8de2b7..25f6414f5c28f88674788864003c2878f38adf63 100644
--- a/src/compiler/js-generic-lowering.cc
+++ b/src/compiler/js-generic-lowering.cc
@@ -479,8 +479,9 @@ void JSGenericLowering::LowerJSCreateFunctionContext(Node* node) {
   int const slot_count = OpParameter<int>(node->op());
   CallDescriptor::Flags flags = AdjustFrameStatesForCall(node);
 
-  // Use the FastNewContextStub only for function contexts up maximum size.
-  if (slot_count <= FastNewContextStub::kMaximumSlots) {
+  // Use the FastNewFunctionContextStub only for function contexts up maximum
+  // size.
+  if (slot_count <= FastNewFunctionContextStub::kMaximumSlots) {
     Callable callable = CodeFactory::FastNewContext(isolate(), slot_count);
     ReplaceWithStubCall(node, callable, flags);
   } else {