Do not ignore side effects of a type test or type cast as expression, such

tests/language/language_dart2js.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 == dart2js || $compiler == dart2dart ]
 override_inheritance_mixed_test/08: Fail # Issue 18124
 override_inheritance_mixed_test/09: Fail # Issue 18124
 bad_constructor_test/05: CompileTimeError # Issue 13669
 malformed_test/05: MissingCompileTimeError # Issue 12695
 malformed_test/06: MissingCompileTimeError # Issue 12695
@@ skipping 35 matching lines @@
 type_variable_bounds2_test/04: Fail # Issue 12702
 type_variable_bounds2_test/06: Pass # Issue 12702 (pass for the wrong reasons).
 type_variable_bounds3_test/00: Fail # Issue 12702
 closure_type_test: Fail # Issue 12745
 malbounded_redirecting_factory_test/02: Fail # Issue 12825
 malbounded_redirecting_factory_test/03: Fail # Issue 12825
 malbounded_redirecting_factory2_test/02: Fail # Issue 12825
 malbounded_redirecting_factory2_test/03: Fail # Issue 12825
 malbounded_instantiation_test/01: Fail # Issue 12702
 malbounded_type_cast_test: Fail # Issue 14121
+malbounded_type_cast2_test: Fail # Issue 14121
 malbounded_type_test_test/03: Fail # Issue 14121
 malbounded_type_test_test/04: Fail # Issue 14121
+malbounded_type_test2_test: Fail # Issue 14121
 default_factory2_test/01: Fail # Issue 14121
 typevariable_substitution2_test/01: Crash # Issue 15875
 typevariable_substitution2_test/02: Crash # Issue 15875
 
 [ $compiler == dart2js && $unchecked ]
 type_checks_in_factory_method_test: RuntimeError # Issue 12746
 assertion_test: RuntimeError # Issue 12748
 double_to_string_as_exponential2_test: RuntimeError # Issue 12749
 double_to_string_as_fixed2_test: RuntimeError # Issue 12749
 double_to_string_as_precision2_test: RuntimeError # Issue 12749
@@ skipping 157 matching lines @@
 # DartVM problem.
 constructor5_test: Fail
 constructor6_test: Fail
 closure_in_initializer_test: Fail
 
 # Minified mode failures.
 
 new_expression_type_args_test/00: Fail # Wrongly reports compile-time error.
 new_expression_type_args_test/01: Fail # Wrongly reports compile-time error.
 
-[ $compiler == dart2dart && $checked ]
-# Dart VM problems

[regis, 2014/04/22 18:12:25]

These issues were fixed a long time ago. This section has no effect, but I am
not sure why. Probably because these same tests are marked as failing for
dart2js as well.

-malbounded_type_cast_test: Fail # Issue 14123
-malbounded_type_test_test/01: Fail # Issue 14131
-malbounded_instantiation_test/01: Fail # Issue 14132
-
 [ $compiler == dart2dart && $minified ]
 cyclic_type_test/0*: Fail # Issue 12605.
 cyclic_type2_test: Fail # Issue 12605.
 super_getter_setter_test: Fail # Issue 11065.
 f_bounded_quantification4_test: Fail # Issue 12605.
 f_bounded_quantification5_test: Fail # Issue 12605.
 type_variable_typedef_test: Fail # Issue 11467
 type_variable_conflict2_test/01: RuntimeError # Issue 16180
 
 invocation_mirror_test: Fail, OK # Issue 12706 (hardcoded names).
@@ skipping 14 matching lines @@
 
 [ ($compiler == dart2js && $csp)]
 deferred_constraints_type_annotation_test/*: Skip # Issue 16898
 deferred_constraints_constants_test/*: Skip # Issue 16898
 deferred_no_such_method_test*: Skip # Issue 16898
 deferred_constraints_type_annotation_old_syntax_test/*: Skip # Issue 16898
 deferred_constraints_constants_old_syntax_test/*: Skip # Issue 16898
 
 [ $compiler == dart2js && $runtime == d8 && $system == windows ]
 *deferred*: Skip # Issue 17458