fix #28988, remove throw on Dart1 incompatible is-checks for dartdevc

pkg/dev_compiler/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.
 
 define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require',
         'test_status'],
       function(dart_sdk, async_helper, expect, unittest, is, require,
                test_status) {
   'use strict';
 
   async_helper = async_helper.async_helper;
   let minitest = expect.minitest;
   let mochaOnError = window.onerror;
   dart_sdk.dart.trapRuntimeErrors(false);
   dart_sdk.dart.ignoreWhitelistedErrors(false);
-  dart_sdk.dart.failForWeakModeIsChecks(false);
   dart_sdk._isolate_helper.startRootIsolate(function() {}, []);
   // Make it easier to debug test failures and required for formatter test that
   // assumes custom formatters are enabled.
   dart_sdk._debugger.registerDevtoolsFormatter();
 
   let html_config = unittest.html_config;
   // Test attributes are a list of strings, or a string for a single
   // attribute. Valid attributes are:
   //
   //   'pass' - test passes (default)
@@ skipping 48 matching lines @@
       'async_star_test_03_multi': async_unittest,
       'async_star_test_04_multi': async_unittest,
       'async_star_test_05_multi': async_unittest,
 
       'async_switch_test': fail,
       'asyncstar_throw_in_catch_test': ['skip', 'fail'],
       'await_future_test': skip_timeout,
       'await_for_test': 'slow',
       'bit_operations_test_none_multi': fail,  // DDC/dart2js canonicalize bitop results to unsigned
       'branch_canonicalization_test': fail,  // JS bit operations truncate to 32 bits.
+      'call_test': fail,

[Jennifer Messerly, 2017/08/05 01:22:20]

this is just triage for another language test migration failure

       'call_closurization_test': fail, // Functions do not expose a "call" method.
       'canonical_const2_test': fail,
       'canonical_const_test': fail,
       'compile_time_constant10_test_none_multi': fail,
       'compile_time_constant_a_test': fail,
       'compile_time_constant_b_test': fail,
       'compile_time_constant_d_test': fail,
       'compile_time_constant_k_test_none_multi': fail,
       'compile_time_constant_o_test_none_multi': fail,
       'const_evaluation_test_01_multi': fail,
@@ skipping 771 matching lines @@
 
     for (let action of unittest_tests) {
       try {
         action();
       } catch (e) {
         console.error("Caught error tying to setup test:", e);
       }
     }
   });
 });