Report errors on duplicate export.

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 36 matching lines @@
 *dartc_negative_test: Skip
 
 compile_time_constant10_test/none: Fail # issue 5214
 
 call_through_null_getter_test: Fail # issue 6124
 
 invocation_mirror_test: Fail # issue 3326, 3622.
 no_such_method_test: Fail # issue 3326, 3622.
 
 export_cyclic_test: Fail, Crash # issue 6060
+duplicate_export_negative_test: Fail # issue 6134
 invocation_mirror_indirect_test: Fail # Issue 3326
 
 [ $compiler == none && ($system == macos || $system == linux) && $arch == ia32 && $checked ]
 gc_test: Skip  # Issue 1487, flaky.
 
 [ $compiler == none && $mode == debug ]
 gc_test: Skip  # Takes too long.
 
 
 [ $compiler == none && $checked ]
@@ skipping 73 matching lines @@
 constructor3_negative_test: Fail # Runtime only test, rewrite as multitest
 constructor_call_wrong_argument_count_negative_test: Fail # Runtime only test, rewrite as multitest
 disable_privacy_test: Fail # Issue 1882: Needs --disable_privacy support.
 factory5_test/00: Fail # issue 3079
 field_method4_negative_test: Fail  # Runtime only test, rewrite as multitest
 
 first_class_types_literals_test: Fail # issue 6283
 getter_no_setter_test/01: Fail # Fails to detect compile-time error.
 getter_no_setter2_test/01: Fail # Fails to detect compile-time error.
 instance_call_wrong_argument_count_negative_test: Fail # Runtime only test, rewrite as multitest
+duplicate_export_negative_test: Fail # Duplicate export not reported.
 # Test expects signature of noSuchMethod to be correct according
 # to specification. Should start working when the library signature
 # changes.
 is_not_class2_negative_test: Fail #  Runtime only test, rewrite as multitest
 library2_negative_test: Fail # still a valid test? Issue 3649
 library4_negative_test: Fail # still a valid test? Issue 3530
 library6_negative_test: Fail # still a valid test? Issue 3650
 list_literal4_test: Fail # Issue 1343
 map_literal4_test: Fail # Issue 1343
 named_parameters_with_object_property_names_test: Fail # Issue 2137
@@ skipping 430 matching lines @@
 compile_time_constant_checked3_test/05: Fail, OK
 compile_time_constant_checked3_test/06: Fail, OK
 
 type_error_test: Fail, OK # VM bug: http://dartbug.com/5280
 
 call_through_null_getter_test: Fail # issue 6130
 
 # This is a VM error when the compiled code is run.
 invocation_mirror_test: Fail # issue 3326, 3622.
 invocation_mirror_indirect_test: Fail # issue 3326, 3622.