Fix issue with --print-ast and class expressions

src/prettyprinter.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_PRETTYPRINTER_H_
 #define V8_PRETTYPRINTER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 
@@ skipping 105 matching lines @@
   void PrintStatements(ZoneList<Statement*>* statements);
   void PrintDeclarations(ZoneList<Declaration*>* declarations);
   void PrintParameters(Scope* scope);
   void PrintArguments(ZoneList<Expression*>* arguments);
   void PrintCaseClause(CaseClause* clause);
   void PrintLiteralIndented(const char* info, Handle<Object> value, bool quote);
   void PrintLiteralWithModeIndented(const char* info,
                                     Variable* var,
                                     Handle<Object> value);
   void PrintLabelsIndented(ZoneList<const AstRawString*>* labels);
+  void PrintProperties(ZoneList<ObjectLiteral::Property*>* properties);
 
   void inc_indent() { indent_++; }
   void dec_indent() { indent_--; }
 
   int indent_;
 };
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_PRETTYPRINTER_H_