Refactor class declaration logic to the parser and runtime

src/parsing/preparser.cc

 // Copyright 2011 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 <cmath>
 
 #include "src/allocation.h"
 #include "src/base/logging.h"
 #include "src/conversions-inl.h"
 #include "src/conversions.h"
@@ skipping 1240 matching lines @@
                             &property_classifier, &name, CHECK_OK);
     ValidateExpression(&property_classifier, CHECK_OK);
     if (classifier != nullptr) {
       classifier->Accumulate(&property_classifier,
                              ExpressionClassifier::ExpressionProductions);
     }
   }
 
   Expect(Token::RBRACE, CHECK_OK);
 
+  // We desugar class literals into a runtime function call which takes three
+  // new array literals as arguments, so we need to reserve indices for them.
+  function_state_->NextMaterializedLiteralIndex();
+  function_state_->NextMaterializedLiteralIndex();
+  function_state_->NextMaterializedLiteralIndex();
+
   return Expression::Default();
 }
 
 
 PreParser::Expression PreParser::ParseV8Intrinsic(bool* ok) {
   // CallRuntime ::
   //   '%' Identifier Arguments
   Expect(Token::MOD, CHECK_OK);
   if (!allow_natives()) {
     *ok = false;
@@ skipping 35 matching lines @@
   if (!*ok) return;
 
   body->Add(PreParserStatement::ExpressionStatement(return_value), zone());
 }
 
 #undef CHECK_OK
 
 
 }  // namespace internal
 }  // namespace v8