Make getKeys, getValues getters (keys, values).

utils/peg/pegparser.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.
 
 #library('Peg Parser');
 
 /*
  * The following functions are combinators for building Rules.
  *
  * A rule is one of the following
@@ skipping 230 matching lines @@
     Symbol s = new Symbol(name, this);
     _symbols[name] = s;
     return s;
   }
 
   /**
    * Parses the input string and returns the parsed AST, or throws an exception
    * if the input can't be parsed.
    */
   parse(root, String text) {
-    for (var symbol in _symbols.getValues())
+    for (var symbol in _symbols.values)
       if (symbol._rule == null)
         print('${symbol.name} is undefined');
 
     var state = new _ParserState(text, whitespace: whitespace);
     var match = _compile(root).match(state, 0);
     if (match == null)
       return diagnose(state);
     var pos = match[0];
     pos = _skip_whitespace(state, pos);
     if (pos == state._end)
@@ skipping 587 matching lines @@
   add(s);
   add(t);
   add(u);
   add(v);
   add(w);
   add(x);
   add(y);
   add(z);
   return list;
 }