Update dart2dart status after supporting abstract getters

dart/tests/language/language.status

 # 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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 139 matching lines @@
 [ $browser ]
 
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == arm ]
 *: Skip
 
 [ $compiler == dart2dart ]
-implicit_this_test/03: Fail # TODO(ahe): Handle abstract getters.
-implicit_this_test/04: Fail # TODO(ahe): Handle abstract getters.
-property_field_override_test: Fail # TODO(ahe): Handle abstract getters.
-
 call_nonexistent_constructor_test: Fail # Issue 1031
 const_var_test: Fail # Map literals take 2 type arguments.
 map_literal3_test: Fail # Map literals take 2 type arguments.
 class_cycle_negative_test: Fail, OK # Bad test: assumes eager loading.
 field1_negative_test: Fail, OK # Bad test: assumes eager loading.
 field6_negative_test: Fail, OK # Bad test: assumes eager loading.
 field7_negative_test: Fail, OK # Bad test: assumes eager loading.
 interface_cycle_negative_test: Fail, OK # Bad test: assumes eager loading.
 # Common problems with dart2js.  In illegal family, invalid
 # declarations are simply not parsed.  In pseudo kw dart2js
@@ skipping 78 matching lines @@
 field_override_test/02: Fail
 field_override_test/none: Fail
 gc_test: Fail
 super_closure_test: Fail
 super_field_access_test: Fail
 super_first_constructor_test: Fail
 # VM specific tests.
 disable_privacy_test: Fail, Ok
 # This test hard codes name of file being run and precise position.
 generic_test: Fail, Ok