Fix mistake in FastNewFunctionContextStub

src/code-stubs.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/code-stubs.h"
 
 #include <sstream>
 
 #include "src/bootstrapper.h"
 #include "src/code-factory.h"
@@ skipping 4779 matching lines @@
   // Initialize the rest of the slots to undefined.
   Node* undefined = assembler->UndefinedConstant();
   Variable var_slot_index(assembler, MachineRepresentation::kWord32);
   var_slot_index.Bind(min_context_slots);
   Label loop(assembler, &var_slot_index), after_loop(assembler);
   assembler->Goto(&loop);
 
   assembler->Bind(&loop);
   {
     Node* slot_index = var_slot_index.value();
-    // check for < length later, there are at least Context::MIN_CONTEXT_SLOTS
+    assembler->GotoUnless(assembler->Int32LessThan(slot_index, length),
+                          &after_loop);
     assembler->StoreFixedArrayElement(function_context, slot_index, undefined,
                                       SKIP_WRITE_BARRIER);
     Node* one = assembler->Int32Constant(1);
     Node* next_index = assembler->Int32Add(slot_index, one);
     var_slot_index.Bind(next_index);
-    assembler->Branch(assembler->Int32LessThan(next_index, length), &loop,
-                      &after_loop);
+    assembler->Goto(&loop);
   }
   assembler->Bind(&after_loop);
 
   return function_context;
 }
 
 void FastNewFunctionContextStub::GenerateAssembly(
     CodeStubAssembler* assembler) const {
   typedef compiler::Node Node;
   Node* function = assembler->Parameter(Descriptor::kFunction);
@@ skipping 462 matching lines @@
   if (type->Is(Type::UntaggedPointer())) {
     return Representation::External();
   }
 
   DCHECK(!type->Is(Type::Untagged()));
   return Representation::Tagged();
 }
 
 }  // namespace internal
 }  // namespace v8