Support abstract getters without parameters.

dart/lib/compiler/implementation/scanner/parser.dart

 // 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.
 
 /**
  * An event generating parser of Dart programs. This parser expects
  * all tokens in a linked list (aka a token stream).
  *
  * The class [Scanner] is used to generate a token stream. See the
  * file scanner.dart.
@@ skipping 637 matching lines @@
     }
     bool isField;
     while (true) {
       // Loop to allow the listener to rewrite the token stream for
       // error handling.
       final String value = token.stringValue;
       if ((value === '(') || (value === '.') || (value === '{') ||
           (value === '=>')) {
         isField = false;
         break;
-      } else if ((value === '=') || (value === ';') || (value === ',')) {
+      } else if (value === ';') {
+        if (getOrSet != null) {
+          // If we found a "get" keyword, this must be an abstract
+          // getter.
+          isField = (getOrSet.stringValue !== 'get');
+          // TODO(ahe): This feels like a hack.
+        } else {
+          isField = true;
+        }
+        break;
+      } else if ((value === '=') || (value === ',')) {
         isField = true;
         break;
       } else {
         token = listener.unexpected(token);
         if (token.kind === EOF_TOKEN) {
           // TODO(ahe): This is a hack, see parseTopLevelMember.
           listener.endFields(1, start, token);
           return token;
         }
       }
@@ skipping 1159 matching lines @@
     }
     listener.handleContinueStatement(hasTarget, continueKeyword, token);
     return expectSemicolon(token);
   }
 
   Token parseEmptyStatement(Token token) {
     listener.handleEmptyStatement(token);
     return expectSemicolon(token);
   }
 }