Complain about duplicated names.

tests/co19/co19-kernel.status

 # Copyright (c) 2016, 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 == dartk || $compiler == dartkp ]
 Language/Classes/Constructors/Constant_Constructors/initializer_not_a_constant_t03: MissingCompileTimeError
 Language/Classes/Constructors/Constant_Constructors/non_final_instance_variable_t02: MissingCompileTimeError
 Language/Classes/Constructors/Constant_Constructors/superinitializer_t01: MissingCompileTimeError
 Language/Classes/Constructors/Constant_Constructors/superinitializer_t02: MissingCompileTimeError
 Language/Classes/Constructors/Factories/const_modifier_t01: MissingCompileTimeError
@@ skipping 197 matching lines @@
 Language/Metadata/compilation_t11: MissingCompileTimeError
 Language/Mixins/Mixin_Application/deferred_t01: MissingCompileTimeError
 Language/Mixins/Mixin_Application/syntax_t16: CompileTimeError # Issue 25765
 Language/Mixins/declaring_constructor_t05: MissingCompileTimeError # Issue 24767
 Language/Mixins/declaring_constructor_t06: MissingCompileTimeError # Issue 24767
 Language/Overview/Privacy/private_and_public_t06: RuntimeError
 Language/Overview/Privacy/private_and_public_t09: RuntimeError
 Language/Overview/Privacy/private_and_public_t10: RuntimeError
 Language/Overview/Privacy/private_and_public_t19: RuntimeError
 Language/Overview/Privacy/private_and_public_t20: RuntimeError
-Language/Overview/Scoping/conflicting_names_t16: Crash
-Language/Overview/Scoping/conflicting_names_t17: Crash
-Language/Overview/Scoping/conflicting_names_t18: Crash
-Language/Overview/Scoping/conflicting_names_t25: Crash
-Language/Overview/Scoping/conflicting_names_t26: Crash
-Language/Overview/Scoping/conflicting_names_t27: Crash
-Language/Overview/Scoping/conflicting_names_t31: MissingCompileTimeError
-Language/Overview/Scoping/conflicting_names_t32: MissingCompileTimeError
-Language/Overview/Scoping/conflicting_names_t33: MissingCompileTimeError
 Language/Overview/Scoping/conflicting_names_t35: MissingCompileTimeError
-Language/Overview/Scoping/conflicting_names_t37: Crash
-Language/Overview/Scoping/conflicting_names_t38: Crash
 Language/Overview/Scoping/conflicting_names_t39: MissingCompileTimeError
 Language/Overview/Scoping/conflicting_names_t40: MissingCompileTimeError
 Language/Overview/Scoping/conflicting_names_t41: MissingCompileTimeError
-Language/Overview/Scoping/conflicting_names_t44: Crash
 Language/Reference/Lexical_Rules/Reserved_Words/void_t05: DartkCrash
 Language/Statements/Continue/label_t06: MissingCompileTimeError
 Language/Statements/Continue/label_t07: MissingCompileTimeError
 Language/Statements/Continue/label_t08: MissingCompileTimeError
 Language/Statements/Continue/label_t09: MissingCompileTimeError
 Language/Statements/Continue/label_t10: MissingCompileTimeError
 Language/Statements/Continue/label_t11: MissingCompileTimeError
 Language/Statements/For/syntax_t12: MissingCompileTimeError
 Language/Statements/For/syntax_t13: MissingCompileTimeError
 Language/Statements/For/syntax_t19: MissingCompileTimeError
 Language/Statements/For/syntax_t20: MissingCompileTimeError
 Language/Statements/Labels/scope_t05: MissingCompileTimeError
 Language/Statements/Local_Function_Declaration/reference_before_declaration_t01: MissingCompileTimeError
 Language/Statements/Local_Function_Declaration/reference_before_declaration_t03: MissingCompileTimeError
 Language/Statements/Local_Variable_Declaration/syntax_t11: MissingCompileTimeError
 Language/Statements/Local_Variable_Declaration/syntax_t20: MissingCompileTimeError
 Language/Statements/Switch/equal_operator_t01: MissingCompileTimeError
 Language/Statements/Switch/equal_operator_t02: MissingCompileTimeError
 Language/Statements/Switch/expressions_t01: MissingCompileTimeError
 Language/Statements/Switch/expressions_t02: MissingCompileTimeError
 Language/Statements/Switch/expressions_t03: MissingCompileTimeError
 Language/Statements/Switch/expressions_t04: MissingCompileTimeError
 Language/Statements/Switch/labels_constants_t01: MissingCompileTimeError
 Language/Statements/Switch/syntax_t16: MissingCompileTimeError
 Language/Statements/Switch/syntax_t17: MissingCompileTimeError
 Language/Statements/Try/malformed_type_t04: RuntimeError
 Language/Statements/Try/syntax_t13: MissingCompileTimeError
-Language/Statements/Try/syntax_t15: Crash
 Language/Statements/Yield_and_Yield_Each/Yield_Each/location_t01: MissingCompileTimeError # Issue 25495
 Language/Statements/Yield_and_Yield_Each/Yield_Each/location_t03: MissingCompileTimeError # Issue 25495
 Language/Statements/Yield_and_Yield_Each/Yield_Each/location_t05: MissingCompileTimeError # Issue 25495
 Language/Types/Static_Types/deferred_type_t01: RuntimeError # Kernel Issue 28335 (deferred libraries)
 Language/Types/Static_Types/malformed_type_t01: RuntimeError
 Language/Types/Type_Declarations/Typedef/param_default_value_t02: MissingCompileTimeError
 Language/Types/Type_Declarations/Typedef/param_default_value_t03: MissingCompileTimeError
 Language/Types/Type_Declarations/Typedef/self_reference_t01: MissingCompileTimeError
 Language/Types/Type_Declarations/Typedef/self_reference_t02: MissingCompileTimeError
 Language/Types/Type_Declarations/Typedef/self_reference_t03: MissingCompileTimeError
@@ skipping 67 matching lines @@
 Language/Metadata/before_function_t07: RuntimeError
 Language/Metadata/before_type_param_t01: RuntimeError
 Language/Metadata/compilation_t01: MissingCompileTimeError
 Language/Metadata/compilation_t02: MissingCompileTimeError
 Language/Metadata/compilation_t03: MissingCompileTimeError
 Language/Metadata/compilation_t04: MissingCompileTimeError
 Language/Metadata/compilation_t08: MissingCompileTimeError
 Language/Metadata/compilation_t09: MissingCompileTimeError
 Language/Metadata/compilation_t10: MissingCompileTimeError
 Language/Metadata/compilation_t11: MissingCompileTimeError
-Language/Overview/Scoping/conflicting_names_t43: MissingCompileTimeError
 LibTest/isolate/Isolate/spawnUri_A01_t03: Pass, Timeout
 
 # dartk: JIT failures (debug)
 [ $compiler == dartk && $mode == debug ]
-Language/Overview/Scoping/conflicting_names_t43: Crash
 LibTest/isolate/Isolate/spawnUri_A01_t04: Pass, Slow, Timeout
 
 # dartk: precompilation failures
 [ $compiler == dartkp ]
 Language/Classes/Getters/syntax_t06: Crash
 Language/Classes/Setters/parameter_t05: Crash
 Language/Classes/Setters/parameter_t07: Crash
 Language/Expressions/Constants/depending_on_itself_t01: Crash
 Language/Expressions/Constants/depending_on_itself_t02: Crash
-Language/Overview/Scoping/conflicting_names_t43: Crash
 Language/Overview/Scoping/hiding_declaration_t11: Crash
 Language/Overview/Scoping/hiding_declaration_t12: Crash
 
 # dartk: precompilation failures (debug)
 [ $compiler == dartkp && $mode == debug ]
 Language/Functions/External_Functions/not_connected_to_a_body_t01: Crash
 
 # dartk: checked mode failures
 [ $checked && ($compiler == dartk || $compiler == dartkp) ]
 Language/Classes/Constructors/Factories/arguments_type_t01: RuntimeError
@@ skipping 24 matching lines @@
 LibTest/collection/SplayTreeMap/inherited_tests_A01_t01: RuntimeError
 LibTest/isolate/Isolate/spawn_A02_t04: RuntimeError
 LibTest/isolate/Isolate/spawn_A02_t05: RuntimeError
 LibTest/isolate/Isolate/spawn_A02_t06: RuntimeError
 LibTest/isolate/Isolate/spawn_A02_t07: RuntimeError
 
 # Deferred loading kernel issue 28335.
 [ $compiler == dartk || $compiler == dartkp ]
 Language/Libraries_and_Scripts/Imports/deferred_import_t01: CompileTimeError # Deferred loading kernel issue 28335.
 Language/Libraries_and_Scripts/Imports/deferred_import_t02: CompileTimeError # Deferred loading kernel issue 28335.