Fix resolution of super getters and setters

tests/co19/co19-runtime.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.
 
 [ $compiler == none && $runtime == vm ]
 # These tests need to be updated for new optional parameter syntax and semantics, co19 issue 258:
 Language/06_Functions/2_Formal_Parameters/2_Optional_Formals_A01_t01: Fail, OK
 Language/07_Classes/1_Instance_Methods_A02_t06: Fail, OK
 Language/10_Expressions/15_Method_Invocation/1_Ordinary_Invocation_A01_t01: Fail, OK
 Language/14_Types/5_Function_Types_A01_t21: Fail, OK
@@ skipping 399 matching lines @@
 LibTest/core/int/operator_remainder_A01_t02: Fail, OK
 LibTest/core/int/operator_addition_A01_t01: Fail, OK
 
 
 
 
 [ $compiler == none && $runtime == vm ]
 LibTest/core/String/contains_A01_t03: Skip # Times out.
 
 LibTest/core/String/contains_A01_t02: Fail
-
-Language/03_Overview/2_Privacy_A01_t11: Fail # Related to issue 978
 Language/11_Statements/11_Labels_A01_t03: Fail # Issue 2238
 
 
 [ $compiler == none && $runtime == vm && $arch == ia32 ]
 LibTest/core/int/operator_left_shift_A01_t02: Fail # co19 issue 129
 
 
 [ $compiler == none && $runtime == vm ]
 Language/07_Classes/07_Classes_A02_t29: Fail
 Language/07_Classes/07_Classes_A02_t31: Fail
@@ skipping 49 matching lines @@
 
 
 [ $compiler == none && $runtime == vm && $mode == debug ]
 LibTest/isolate/isolate_api/spawnFunction_A02_t01: Crash
 
 [ $compiler == none && $arch == simarm ]
 *: Skip
 
 [ $compiler == none && $arch == arm ]
 *: Skip