Fix a couple of things causing bot redness:

tests/language_2/language_2.status

 # Copyright (c) 2017, 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.
 
 # The VM and dart2js do not implement the Dart 2.0 static type errors yet.
 # Analyzer does, but only when "--strong" is used.
 [ $runtime == vm || $runtime == dart_precompiled || ($compiler == dart2analyzer && ! $strong && ! $checked) ]
 abstract_beats_arguments_test: MissingCompileTimeError
 abstract_exact_selector_test/01: MissingCompileTimeError
 abstract_factory_constructor_test/00: MissingCompileTimeError
@@ skipping 548 matching lines @@
 bit_operations_test/04: Crash
 bit_operations_test/none: Crash
 black_listed_test/none: Crash
 bool_check_test: Crash
 bool_test: Crash
 bootstrap_test: RuntimeError
 bound_closure_equality_test: Crash
 bound_closure_primitives_test: Crash
 branch_canonicalization_test: RuntimeError
 break_test: Crash
+built_in_identifier_test/01: Crash
+built_in_identifier_test/none: Crash
 
 [ $compiler == dart2js && $runtime != none && $checked ]
 assert_with_message_test: RuntimeError
 
 [ $checked && ($compiler == dartk || $compiler == dartkp) ]
 async_return_types_test/nestedFuture: Fail
 async_return_types_test/wrongTypeParameter: Fail
 
 # These test entries will be valid for vm (with and without kernel).
 [ $compiler == none || $compiler == app_jit || $compiler == dartk || $runtime == dart_precompiled ]
@@ skipping 100 matching lines @@
 async_return_types_test/return_value_sync_star: Skip # Flutter Issue 9110
 async_return_types_test/wrongReturnType: Skip # Flutter Issue 9110
 async_return_types_test/wrongTypeParameter: Skip # Flutter Issue 9110
 async_star_cancel_while_paused_test: Skip # Flutter Issue 9110
 async_star_no_cancel_test: Skip # Flutter Issue 9110
 
 [ $compiler == dart2js && ! $checked && ! $dart2js_with_kernel ]
 bool_check_test: RuntimeError # Issue 29647
 bool_condition_check_test: RuntimeError
 
+[ $compiler == precompiler && $runtime == dart_precompiled ]
+bool_check_test: RuntimeError
+
 [ $compiler == dart2analyzer ]
 bad_initializer2_negative_test: fail # Issue 14880
 black_listed_test/none: fail # Issue 14228
 bad_initializer1_negative_test: CompileTimeError # Issue 14529
 bad_named_constructor_negative_test: CompileTimeError # Issue 18693
 body_less_constructor_wrong_arg_negative_test: CompileTimeError # Issue 18695
+built_in_identifier_prefix_test: CompileTimeError
 
-[ $strong ]
-#bad_constructor_test: Skip
-#bad_initializer1_negative_test: Skip
-#bad_initializer2_negative_test: Skip
-#bad_named_constructor_negative_test: Skip
-#bad_named_parameters2_test: Skip
-#bad_named_parameters_test: Skip
-#bad_override_test: Skip
-#black_listed_test: Skip
-#body_less_constructor_wrong_arg_negative_test: Skip
+[ $runtime == vm ]
+built_in_identifier_prefix_test: CompileTimeError
+
+[ $compiler == dart2js ]
+built_in_identifier_prefix_test: CompileTimeError
+
+[ $compiler == dartdevc ]
+built_in_identifier_prefix_test: CompileTimeError