Because drt/dartium wraps tests before running them, the new semantics for how to find and run main…

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.
 
 [ $compiler == none ]
 mixin_super_constructor_named_test: Fail # Issue 12631
 mixin_super_constructor_positionals_test: Fail # Issue 12631
@@ skipping 30 matching lines @@
 compile_time_constant_checked3_test/02: Fail, OK
 compile_time_constant_checked3_test/03: Fail, OK
 compile_time_constant_checked3_test/04: Fail, OK
 compile_time_constant_checked3_test/05: Fail, OK
 compile_time_constant_checked3_test/06: Fail, OK
 
 [ $runtime == vm || (($runtime == drt || $runtime == dartium) && $compiler == none) ]
 call_test: Fail # Issue 12602
 dynamic_prefix_core_test: Fail # Issue 12478
 
-[ $compiler == none && ($runtime == vm || $runtime == drt || $runtime == dartium) ]
+[ $compiler == none && $runtime == vm ]
 export_main_test: Fail # Issue 14763
 export_double_same_main_test: Fail # Issue 14763
 
+[ $compiler == none && ($runtime == drt || $runtime == dartium) ]
+export_ambiguous_main_negative_test: Fail # Issue 14763
+
 [ $compiler == none && $runtime == drt ]
 mixin_illegal_object_test/01: pass # Issue 10952.
 mixin_illegal_object_test/02: pass # Issue 10952.
 
 [ $compiler == dart2js && $runtime == ie9 ]
 lazy_static3_test: Fail # Issue 13469
 
 [ $compiler == none && $runtime == dartium && $unchecked ]
 named_parameters_type_test/01: Fail # Issue 13719: Please triage this failure.
 named_parameters_type_test/02: Fail # Issue 13719: Please triage this failure.
 named_parameters_type_test/03: Fail # Issue 13719: Please triage this failure.
 positional_parameters_type_test/01: Fail # Issue 13719: Please triage this failure.
 positional_parameters_type_test/02: Fail # Issue 13719: Please triage this failure.
 assertion_test: Fail # Issue 13719: Please triage this failure.
 generic_test: Fail # Issue 13719: Please triage this failure.
 list_literal1_test/01: Fail # Issue 13719: Please triage this failure.
 list_literal4_test: Fail # Issue 13719: Please triage this failure.
 map_literal1_test/01: Fail # Issue 13719: Please triage this failure.
 map_literal4_test: Fail # Issue 13719: Please triage this failure.
 type_checks_in_factory_method_test: Fail # Issue 13719: Please triage this failure.
 vm/type_vm_test: Fail # Issue 13719: Please triage this failure.
 
 [ $compiler == none && $runtime == dartium ]
 first_class_types_literals_test: Pass, Fail # Issue 13719: Please triage this failure.
 issue13474_test: Pass, Fail # Issue 14651.
 
 [ $compiler == none && ( $runtime == dartium || $runtime == drt ) ]
 typed_message_test: Crash, Fail # Issue 13921, 14400
 vm/optimized_guarded_field_isolates_test: Fail # Issue 13921.