Fix for 3607

compiler/java/com/google/dart/compiler/parser/DartParser.java

 // 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.
 
 package com.google.dart.compiler.parser;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.CharStreams;
 import com.google.dart.compiler.DartCompilationError;
@@ skipping 1349 matching lines @@
           reportError(name,  ParserErrorCode.FUNCTION_NAME_EXPECTED_IDENTIFIER);
         }
         if (optional(Token.PERIOD)) {
           name = doneWithoutConsuming(new DartPropertyAccess(name, parseIdentifier()));
         }
       }
       done(null);
     }
 
     // Parse the parameters definitions.
-    List<DartParameter> parameters = parseFormalParameterList();
+    List<DartParameter> parameters;
+    if (modifiers.isGetter() && peek(0) != Token.LPAREN) {
+      // TODO: For now the parameters are optional so that both the old and new style will be
+      // accepted, but eventually parameters should be disallowed.
+      parameters = new ArrayList<DartParameter>();
+    } else {
+      if (modifiers.isSetter()) {
+        // TODO: For now we optionally allow an equal sign before the formal parameter list, but
+        // eventually it should be required.
+        optional(Token.ASSIGN);
+      }
+      parameters = parseFormalParameterList();
+    }
 
     if (arity != -1) {
       if (parameters.size() != arity) {
         reportError(position(), ParserErrorCode.ILLEGAL_NUMBER_OF_PARAMETERS);
       }
       // In methods with required arity each parameter is required.
       for (DartParameter parameter : parameters) {
         if (parameter.getModifiers().isNamed()) {
           reportError(parameter, ParserErrorCode.NAMED_PARAMETER_NOT_ALLOWED);
         }
@@ skipping 2931 matching lines @@
   }
 
   private void reportError(DartNode node, ErrorCode errorCode, Object... arguments) {
     reportError(new DartCompilationError(node, errorCode, arguments));
   }
 
   private boolean currentlyParsingToplevel() {
     return   !(isParsingInterface || isTopLevelAbstract || isParsingClass);
   }
 }