VM can parse and ignore metadata

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 "vm/ast.h"
@@ skipping 198 matching lines @@
   void ConsumeRightAngleBracket();
   void ExpectToken(Token::Kind token_expected);
   void ExpectSemicolon();
   void UnexpectedToken();
   String* ExpectClassIdentifier(const char* msg);
   String* ExpectIdentifier(const char* msg);
   bool IsLiteral(const char* literal);
 
   void SkipIf(Token::Kind);
   void SkipBlock();
+  void SkipMetadata();
   void SkipToMatchingParenthesis();
   void SkipTypeArguments();
   void SkipType(bool allow_void);
   void SkipInitializers();
   void SkipExpr();
   void SkipNestedExpr();
   void SkipConditionalExpr();
   void SkipBinaryExpr();
   void SkipUnaryExpr();
   void SkipPostfixExpr();
@@ skipping 377 matching lines @@
 
   // Allocate temporary only once per function.
   LocalVariable* expression_temp_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_