Update core/{bool,errors,exceptions}

test/browser/language_tests.js

 // Copyright (c) 2015, 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.
 
 (function() {
   'use strict';
 
   let dart_sdk = dart_library.import('dart_sdk');
   dart_sdk._isolate_helper.startRootIsolate(function() {}, []);
   let async_helper = dart_library.import('async_helper').async_helper;
@@ skipping 378 matching lines @@
       'const_list_remove_range_test': fail,
       'const_list_set_range_test': fail,
       'data_uri_test': fail,
       'date_time4_test': fail,
       'date_time_parse_test': fail,
       'date_time_test': fail,
       'double_parse_test_01_multi': fail,
       'error_stack_trace1_test': fail,
       'error_stack_trace2_test': fail,
       'file_resource_test': skip_fail, // crashes during import load.
-      'format_exception_test': fail,
       'from_environment_const_type_test_01_multi': skip_fail,  // constructor throws
       'from_environment_const_type_test_05_multi': skip_fail,  // constructor throws
       'from_environment_const_type_test_10_multi': skip_fail,  // constructor throws
       'from_environment_const_type_test_15_multi': skip_fail,  // constructor throws
       'from_environment_const_type_test_none_multi': skip_fail,  // constructor throws
       'from_environment_const_type_undefined_test_01_multi': skip_fail,  // constructor throws
       'from_environment_const_type_undefined_test_05_multi': skip_fail,  // constructor throws
       'from_environment_const_type_undefined_test_10_multi': skip_fail,  // constructor throws
       'from_environment_const_type_undefined_test_15_multi': skip_fail,  // constructor throws
       'from_environment_const_type_undefined_test_none_multi': skip_fail,  // constructor throws
@@ skipping 134 matching lines @@
 
         if (!async_helper.asyncTestStarted) done();
       });
     }
   }
 
   for (let action of unittest_tests) {
     action();
   }
 })();