Refactor class declaration logic to the parser and runtime

src/parsing/parser-base.h

 // 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.
 
 #ifndef V8_PARSING_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
 #include "src/base/hashmap.h"
@@ skipping 130 matching lines @@
 // struct Traits {
 //   // In particular...
 //   struct Type {
 //     // Used by FunctionState and BlockState.
 //     typedef Scope;
 //     typedef GeneratorVariable;
 //     // Return types for traversing functions.
 //     typedef Identifier;
 //     typedef Expression;
 //     typedef FunctionLiteral;
-//     typedef ClassLiteral;
 //     typedef ObjectLiteralProperty;
 //     typedef Literal;
 //     typedef ExpressionList;
 //     typedef PropertyList;
 //     typedef FormalParameter;
 //     typedef FormalParameters;
 //     // For constructing objects returned by the traversing functions.
 //     typedef Factory;
 //   };
 //   // ...
@@ skipping 3503 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H