fix #470, string interpolation now respects Dart toString

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 368 matching lines @@
     'corelib': {
       'apply2_test': fail,
       'apply3_test': fail,
       'apply_test': fail,
       'big_integer_parsed_arith_vm_test': fail,
       'big_integer_parsed_div_rem_vm_test': fail,
       'big_integer_parsed_mul_div_vm_test': fail,
       'bit_twiddling_bigint_test': fail,
       'bool_from_environment_test': fail,
       'collection_length_test': skip_timeout,
-      'collection_to_string_test': fail,
       'compare_to2_test': fail,
       'const_list_literal_test': fail,
       'const_list_remove_range_test': fail,
       'const_list_set_range_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.
       'from_environment_const_type_test_01_multi': skip_fail,  // constructor throws
       'from_environment_const_type_test_05_multi': skip_fail,  // constructor throws
@@ skipping 264 matching lines @@
       'point_test': ['unittest', 'skip', 'fail'],
       'rectangle_test': ['unittest', 'skip', 'fail'],
     },
 
     'lib/typed_data': {
       // No bigint or int64 support
       'int32x4_bigint_test': skip_fail,
       'int64_list_load_store_test': skip_fail,
       'typed_data_hierarchy_int64_test': skip_fail,
       'typed_data_list_test': fail,
-
-      // TODO(vsm): List.toString is different in DDC
-      // https://github.com/dart-lang/dev_compiler/issues/445
-      'setRange_1_test': skip_fail,
-      'setRange_2_test': skip_fail,
-      'setRange_3_test': skip_fail,
-      'setRange_4_test': skip_fail,
-      'setRange_5_test': skip_fail,
     },
   };
 
   function countMatches(text, regex) {
     let matches = text.match(regex);
     return matches ? matches.length : 0;
   }
 
   let unittest_tests = [];
 
@@ skipping 124 matching lines @@
 
     for (let action of unittest_tests) {
       try {
         action();
       } catch (e) {
         console.error("Caught error tying to setup test:", e);
       }
     }
   });
 })();