[Interpreter] Use FastCloneShallowObjectStub in CreateObjectLiteral bytecode.

src/compiler/bytecode-graph-builder.cc

 // Copyright 2015 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/compiler/bytecode-graph-builder.h"
 
 #include "src/compiler/bytecode-branch-analysis.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/operator-properties.h"
 #include "src/interpreter/bytecodes.h"
@@ skipping 864 matching lines @@
   int number_of_elements = constant_elements->length();
   const Operator* op = javascript()->CreateLiteralArray(
       constant_elements, literal_flags, literal_index, number_of_elements);
   BuildCreateLiteral(op);
 }
 
 void BytecodeGraphBuilder::VisitCreateObjectLiteral() {
   Handle<FixedArray> constant_properties = Handle<FixedArray>::cast(
       bytecode_iterator().GetConstantForIndexOperand(0));
   int literal_index = bytecode_iterator().GetIndexOperand(1);
-  int literal_flags = bytecode_iterator().GetFlagOperand(2);
+  int bytecode_flags = bytecode_iterator().GetFlagOperand(2);
+  int literal_flags =
+      interpreter::CreateObjectLiteralFlags::FlagsBits::decode(bytecode_flags);
   // TODO(mstarzinger): Thread through number of properties.
   int number_of_properties = constant_properties->length() / 2;
   const Operator* op = javascript()->CreateLiteralObject(
       constant_properties, literal_flags, literal_index, number_of_properties);
   BuildCreateLiteral(op);
 }
 
 Node* BytecodeGraphBuilder::ProcessCallArguments(const Operator* call_op,
                                                  Node* callee,
                                                  interpreter::Register receiver,
@@ skipping 756 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8