Remove most superfluous getter arguments from dart2js.

dart/lib/compiler/implementation/scanner/token.dart

 // Copyright (c) 2011, 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.
 
 final int EOF_TOKEN = 0;
 
 final int KEYWORD_TOKEN = $k;
 final int IDENTIFIER_TOKEN = $a;
 final int DOUBLE_TOKEN = $d;
 final int INT_TOKEN = $i;
@@ skipping 84 matching lines @@
    */
   final int charOffset;
 
   /**
    * The next token in the token stream.
    */
   Token next;
 
   Token(PrecedenceInfo this.info, int this.charOffset);
 
-  get value() => info.value;
+  get value => info.value;
 
   /**
    * Returns the string value for keywords and symbols. For instance 'class' for
    * the [CLASS] keyword token and '*' for a [Token] based on [STAR_INFO]. For
    * other tokens, such identifiers, strings, numbers, etc, [stringValue]
    * returns [:null:].
    *
    * [stringValue] should only be used for testing keywords and symbols.
    */
-  String get stringValue() => info.value.stringValue;
+  String get stringValue => info.value.stringValue;
 
   /**
    * The kind enum of this token as determined by its [info].
    */
-  int get kind() => info.kind;
+  int get kind => info.kind;
 
   /**
    * The precedence level for this token.
    */
-  int get precedence() => info.precedence;
+  int get precedence => info.precedence;
 
   /**
    * Returns a textual representation of this token to be used for debugging
    * purposes. The resulting string might contain information about the
    * structure of the token, for example 'StringToken(foo)' for the identifier
    * token 'foo'. Use [slowToString] for the text actually parsed by the token.
    */
   String toString() => info.value.toString();
 
   /**
    * The text parsed by this token.
    */
   String slowToString() => toString();
 
   /**
    * The number of characters parsed by this token.
    */
-  int get slowCharCount() => slowToString().length;
+  int get slowCharCount => slowToString().length;
 }
 
 /**
  * A keyword token.
  */
 class KeywordToken extends Token {
   final Keyword value;
-  String get stringValue() => value.syntax;
+  String get stringValue => value.syntax;
 
   KeywordToken(Keyword value, int charOffset)
     : this.value = value, super(value.info, charOffset);
 
   String toString() => value.syntax;
 }
 
 /**
  * A String-valued token.
  */
 class StringToken extends Token {
   final SourceString value;
-  String get stringValue() => value.stringValue;
+  String get stringValue => value.stringValue;
 
   StringToken(PrecedenceInfo info, String value, int charOffset)
     : this.fromSource(info, new SourceString(value), charOffset);
 
   StringToken.fromSource(PrecedenceInfo info, this.value, int charOffset)
     : super(info, charOffset);
 
   String toString() => "StringToken(${value.slowToString()})";
 
   String slowToString() => value.slowToString();
@@ skipping 320 matching lines @@
 
 final PrecedenceInfo HEXADECIMAL_INFO =
   const PrecedenceInfo(const SourceString('hexadecimal'), 0, HEXADECIMAL_TOKEN);
 
 final PrecedenceInfo COMMENT_INFO =
   const PrecedenceInfo(const SourceString('comment'), 0, COMMENT_TOKEN);
 
 // For reporting lexical errors.
 final PrecedenceInfo ERROR_INFO =
   const PrecedenceInfo(const SourceString('?'), 0, UNKNOWN_TOKEN);