Remove more GrowableObjectArray usage in parser

runtime/vm/parser.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "platform/assert.h"
@@ skipping 17 matching lines @@
 struct RegExpCompileData;
 class SourceLabel;
 template <typename T> class GrowableArray;
 class Parser;
 
 struct CatchParamDesc;
 class ClassDesc;
 struct MemberDesc;
 struct ParamList;
 struct QualIdent;
-struct TopLevel;
+class TopLevel;
 
 // The class ParsedFunction holds the result of parsing a function.
 class ParsedFunction : public ZoneAllocated {
  public:
   ParsedFunction(Thread* thread, const Function& function)
       : thread_(thread),
         function_(function),
         code_(Code::Handle(zone(), function.unoptimized_code())),
         node_sequence_(NULL),
         regexp_compile_data_(NULL),
@@ skipping 839 matching lines @@
 
   // Indentation of parser trace.
   intptr_t trace_indent_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_