[runtime] Allocate space for computed property names

src/ast/ast.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/ast/ast.h"
 
 #include <cmath>  // For isfinite.
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 564 matching lines @@
       (max_element_index <= 32) || ((2 * elements) >= max_element_index));
   bit_field_ = HasElementsField::update(bit_field_, elements > 0);
 
   set_is_simple(is_simple);
   set_depth(depth_acc);
 }
 
 void ObjectLiteral::BuildConstantProperties(Isolate* isolate) {
   if (!constant_properties_.is_null()) return;
 
-  // Allocate a fixed array to hold all the constant properties.
-  Handle<FixedArray> constant_properties =
-      isolate->factory()->NewFixedArray(boilerplate_properties_ * 2, TENURED);
+  Handle<BoilerplateDescription> constant_properties =
+      isolate->factory()->NewBoilerplateDescription(
+          boilerplate_properties_, properties()->length(), has_seen_proto());
 
   int position = 0;
   for (int i = 0; i < properties()->length(); i++) {
     ObjectLiteral::Property* property = properties()->at(i);
     if (!IsBoilerplateProperty(property)) {
       continue;
     }
 
     if (static_cast<uint32_t>(position) == boilerplate_properties_ * 2) {
       DCHECK(property->is_computed_name());
@@ skipping 439 matching lines @@
 // static
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && x->AsString() == y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
 }  // namespace internal
 }  // namespace v8